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48 changed files with 79 additions and 7495 deletions

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="AgentMigrationStateService">
<option name="migrationStatus" value="COMPLETED" />
</component>
</project>

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@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="AskMigrationStateService">
<option name="migrationStatus" value="COMPLETED" />
</component>
</project>

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@ -1,6 +0,0 @@
<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="Ask2AgentMigrationStateService">
<option name="migrationStatus" value="COMPLETED" />
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="EditMigrationStateService">
<option name="migrationStatus" value="COMPLETED" />
</component>
</project>

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@ -4,14 +4,6 @@
<selectionStates>
<SelectionState runConfigName="app">
<option name="selectionMode" value="DROPDOWN" />
<DropdownSelection timestamp="2026-01-13T05:20:56.137492Z">
<Target type="DEFAULT_BOOT">
<handle>
<DeviceId pluginId="PhysicalDevice" identifier="serial=RR8TA08RD8Z" />
</handle>
</Target>
</DropdownSelection>
<DialogSelection />
</SelectionState>
</selectionStates>
</component>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="DeviceTable">
<option name="columnSorters">
<list>
<ColumnSorterState>
<option name="column" value="Name" />
<option name="order" value="ASCENDING" />
</ColumnSorterState>
</list>
</option>
</component>
</project>

1
.idea/gradle.xml generated
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleMigrationSettings" migrationVersion="1" />
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>

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<component name="InspectionProjectProfileManager">
<profile version="1.0">
<option name="myName" value="Project Default" />
<inspection_tool class="ComposePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="ComposePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="ComposePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="ComposePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="GlancePreviewDimensionRespectsLimit" enabled="true" level="WARNING" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="GlancePreviewMustBeTopLevelFunction" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="GlancePreviewNeedsComposableAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="GlancePreviewNotSupportedInUnitTestFiles" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewAnnotationInFunctionWithParameters" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewApiLevelMustBeValid" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewDeviceShouldUseNewSpec" enabled="true" level="WEAK WARNING" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewFontScaleMustBeGreaterThanZero" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewMultipleParameterProviders" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewParameterProviderOnFirstParameter" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
<inspection_tool class="PreviewPickerAnnotation" enabled="true" level="ERROR" enabled_by_default="true">
<option name="composableFile" value="true" />
</inspection_tool>
</profile>
</component>

1
.idea/misc.xml generated
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK">

6
.idea/studiobot.xml generated
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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="StudioBotProjectSettings">
<option name="shareContext" value="OptedIn" />
</component>
</project>

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# 🏗️ Architecture & Component Diagram
## System Architecture Overview
```
┌─────────────────────────────────────────────────────────────────────────┐
│ APLIKASI ABSENSI AKADEMIK │
└─────────────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────────────┐
│ PRESENTATION LAYER │
│ (Jetpack Compose UI) │
│ │
│ ┌────────────────────────────────────────────────────────────────┐ │
│ │ MainActivity (AbsensiScreen) │ │
│ │ • State Management (AttendanceState) │ │
│ │ • Permission Handling (Location + Camera) │ │
│ │ • User Interactions (Button clicks, form inputs) │ │
│ └────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────┬──────────────────────┬───────────────────┐ │
│ │ PhotoPreviewCard │ LocationStatusCard │ ErrorAlertCard │ │
│ │ │ │ │ │
│ │ • Show captured │ • Display latitude │ • Show error │ │
│ │ photo │ • Display longitude │ messages │ │
│ │ • Retake button │ • Show validation │ • Dismissable │ │
│ │ │ status │ │ │
│ └──────────────────────┴──────────────────────┴───────────────────┘ │
│ │
│ ┌────────────────────────────────────────────────────────────────┐ │
│ │ SubmitButtonWithLoader │ │
│ │ • Loading spinner during submission │ │
│ │ • Disabled until all validations pass │ │
│ └────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────────────┐
│ BUSINESS LOGIC LAYER │
│ (Models + Utilities) │
│ │
│ ┌──────────────────────────────┐ ┌────────────────────────────────┐ │
│ │ AttendanceState │ │ LocationValidator │ │
│ │ │ │ │ │
│ │ • location: LocationData │ │ • calculateDistance() │ │
│ │ • foto: Bitmap │ │ • isLocationValid() │ │
│ │ • validationResult │ │ • getValidationMessage() │ │
│ │ • errorMessage │ │ • adjustCoordinates() │ │
│ │ • loading states │ │ │ │
│ └──────────────────────────────┘ │ [Haversine Formula] │ │
│ └────────────────────────────────┘ │
│ ┌──────────────────────────────┐ ┌────────────────────────────────┐ │
│ │ AttendanceRecord │ │ ErrorHandler │ │
│ │ │ │ │ │
│ │ • npm │ │ • getErrorMessage() │ │
│ │ • nama │ │ • getUserFriendlyMessage() │ │
│ │ • latitude/longitude │ │ │ │
│ │ • timestamp │ │ Error Types: │ │
│ │ • foto │ │ • NetworkError │ │
│ │ • validation info │ │ • LocationError │ │
│ └──────────────────────────────┘ │ • PermissionError │ │
│ │ • ValidationError │ │
│ │ • UnknownError │ │
│ └────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ AttendanceConfig (Configuration) │ │
│ │ │ │
│ │ • REFERENCE_LATITUDE / REFERENCE_LONGITUDE │ │
│ │ • ALLOWED_RADIUS_METERS │ │
│ │ • STUDENT_NPM / STUDENT_NAMA │ │
│ │ • WEBHOOK URLs (PRODUCTION + TEST) │ │
│ │ • API_TIMEOUT_MS │ │
│ │ • PHOTO_QUALITY │ │
│ └──────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────────────┐
│ NETWORK LAYER │
│ (API Communication) │
│ │
│ ┌────────────────────────────────────────────────────────────────┐ │
│ │ N8nService │ │
│ │ │ │
│ │ submitAttendance() │ │
│ │ ├─ Serialize data to JSON │ │
│ │ ├─ Encode photo to Base64 │ │
│ │ ├─ POST to webhook URL │ │
│ │ ├─ Parse response code │ │
│ │ └─ Call callback (onSuccess / onError) │ │
│ │ │ │
│ │ submitCallback Interface: │ │
│ │ ├─ onSuccess(responseCode, message) │ │
│ │ └─ onError(throwable, message) │ │
│ └────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────────────┐
│ EXTERNAL SERVICES LAYER │
│ │
│ ┌─────────────────────┬──────────────────┬────────────────────────┐ │
│ │ Location Services │ Camera Services │ N8n Webhook Server │ │
│ │ │ │ │ │
│ │ • Google Play │ • Android Camera │ • Receive JSON data │ │
│ │ Services │ • Camera Intent │ • Process attendance │ │
│ │ • Fused Location │ • Photo capture │ • Store in database │ │
│ │ Provider │ │ • Return HTTP status │ │
│ │ • GPS coordinates │ │ │ │
│ │ │ │ │ │
│ └─────────────────────┴──────────────────┴────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────────┘
```
---
## Data Flow Diagram
```
┌────────────┐
│ App Start │
└─────┬──────┘
┌─────────────────────────────────────┐
│ Request Location Permission │
│ [LocationPermissionLauncher] │
└─────────────────────────────────────┘
├─ GRANTED ──────┐
│ │ DENIED
│ ▼
│ ┌─────────────────┐
│ │ Show Error │
│ │ Message │
│ └─────────────────┘
┌─────────────────────────────────────┐
│ Acquire GPS Location │
│ [FusedLocationProvider.lastLocation]│
└─────────────────────────────────────┘
├─ SUCCESS ──────────────┐
│ │ FAILED
│ ▼
│ ┌────────────────────┐
│ │ LocationError │
│ │ Show in ErrorAlert │
│ └────────────────────┘
┌─────────────────────────────────────┐
│ Validate Location │
│ [LocationValidator.isLocationValid] │
│ - Calculate distance using │
│ Haversine formula │
│ - Compare with allowed radius │
└─────────────────────────────────────┘
├─ VALID ────┐
│ │ INVALID
│ ▼
│ ┌─────────────────────┐
│ │ Show Invalid Status │
│ │ Disable Submit Button│
│ └─────────────────────┘
┌─────────────────────────────────────┐
│ Display LocationStatusCard │
│ - Show latitude/longitude │
│ - Show validation message │
│ - Show distance from reference │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ User clicks "Ambil Foto" │
│ [Request Camera Permission] │
└─────────────────────────────────────┘
├─ GRANTED ──────────────┐
│ │ DENIED
│ ▼
│ ┌────────────────────┐
│ │ PermissionError │
│ │ Show in ErrorAlert │
│ └────────────────────┘
┌─────────────────────────────────────┐
│ Launch Camera Intent │
│ [MediaStore.ACTION_IMAGE_CAPTURE] │
└─────────────────────────────────────┘
├─ CAPTURED ─────┐
│ │ CANCELLED
│ ▼
│ ┌─────────────────┐
│ │ Retry or Skip │
│ └─────────────────┘
┌─────────────────────────────────────┐
│ Display Photo Preview │
│ [PhotoPreviewCard] │
│ - Show Bitmap │
│ - "Ambil Ulang" button │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ Validate All Data │
│ ✓ Location acquired? │
│ ✓ Location valid? │
│ ✓ Photo captured? │
└─────────────────────────────────────┘
├─ ALL VALID ──┐
│ │ MISSING DATA
│ ▼
│ ┌──────────────────────┐
│ │ Show ValidationError │
│ │ Keep Submit Disabled │
│ └──────────────────────┘
┌─────────────────────────────────────┐
│ Enable Submit Button │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ User clicks "Kirim Absensi" │
│ Show Loading Spinner │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ Prepare Request │
│ [N8nService.submitAttendance] │
│ - Serialize to JSON: │
│ {npm, nama, lat, lon, ts, foto} │
│ - Encode photo to Base64 │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ POST to N8n Webhook │
│ [HttpURLConnection] │
│ Timeout: 30 seconds │
└─────────────────────────────────────┘
├─ RESPONSE 200 ──┐
│ │ RESPONSE 4xx/5xx
│ │ or TIMEOUT
│ ▼
│ ┌────────────────────────┐
│ │ onError Called │
│ │ Show NetworkError │
│ │ Suggest Retry │
│ └────────────────────────┘
┌─────────────────────────────────────┐
│ onSuccess Called │
│ - Hide loading spinner │
│ - Show success toast │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ Wait 2 seconds │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ Reset Form │
│ - Clear photo │
│ - Clear location │
│ - Reset validation state │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ Ready for Next Attendance │
└─────────────────────────────────────┘
```
---
## Class Diagram
```
┌─────────────────────────────────────────────────────────────────────────┐
│ DATA MODELS │
├─────────────────────────────────────────────────────────────────────────┤
│ │
│ ┌───────────────────────────┐ ┌──────────────────────────────┐ │
│ │ AttendanceState │ │ LocationData │ │
│ ├───────────────────────────┤ ├──────────────────────────────┤ │
│ │ + location: LocationData? │ │ + latitude: Double │ │
│ │ + foto: Bitmap? │ │ + longitude: Double │ │
│ │ + isLoadingLocation: Bool │ │ + accuracy: Float │ │
│ │ + isLoadingSubmit: Bool │ │ + timestamp: Long │ │
│ │ + validationResult │ └──────────────────────────────┘ │
│ │ + errorMessage: String? │ │
│ │ + isLocationPermission │ ┌──────────────────────────────┐ │
│ │ + isCameraPermission │ │ ValidationResult │ │
│ └───────────────────────────┘ ├──────────────────────────────┤ │
│ │ + isValid: Boolean │ │
│ ┌───────────────────────────┐ │ + message: String │ │
│ │ AttendanceRecord │ │ + status: ValidationStatus │ │
│ ├───────────────────────────┤ └──────────────────────────────┘ │
│ │ + npm: String │ │
│ │ + nama: String │ ┌──────────────────────────────┐ │
│ │ + latitude: Double │ │ ValidationStatus (enum) │ │
│ │ + longitude: Double │ ├──────────────────────────────┤ │
│ │ + timestamp: Long │ │ IDLE │ │
│ │ + foto: Bitmap? │ │ ACQUIRING │ │
│ │ + isValid: Boolean │ │ VALIDATING │ │
│ │ + validationMessage │ │ SUCCESS │ │
│ └───────────────────────────┘ │ OUT_OF_RANGE │ │
│ │ ERROR │ │
│ └──────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────────────┐
│ SERVICES & UTILITIES │
├─────────────────────────────────────────────────────────────────────────┤
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ LocationValidator (object) │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ + calculateDistance(lat1,lon1,lat2,lon2): Double │ │
│ │ + isLocationValid(lat,lon,radius): Boolean │ │
│ │ + getValidationMessage(lat,lon,radius): String │ │
│ │ + adjustCoordinates(lat,lon,latOff,lonOff): Pair<Double> │ │
│ └──────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ N8nService │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ - activity: ComponentActivity │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ + submitAttendance(npm,nama,lat,lon,foto,isTest,callback) │ │
│ │ - bitmapToBase64(bitmap): String │ │
│ │ + interface SubmitCallback │ │
│ │ - onSuccess(responseCode, message) │ │
│ │ - onError(error, message) │ │
│ └──────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ ErrorHandler (object) │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ + sealed class AttendanceError │ │
│ │ - NetworkError(message) │ │
│ │ - LocationError(message) │ │
│ │ - PermissionError(message) │ │
│ │ - ValidationError(message) │ │
│ │ - UnknownError(throwable) │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ + getErrorMessage(error): String │ │
│ │ + getUserFriendlyMessage(error): String │ │
│ └──────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ AttendanceConfig (object) │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ + REFERENCE_LATITUDE: Double │ │
│ │ + REFERENCE_LONGITUDE: Double │ │
│ │ + ALLOWED_RADIUS_METERS: Double │ │
│ │ + STUDENT_NPM: String │ │
│ │ + STUDENT_NAMA: String │ │
│ │ + WEBHOOK_PRODUCTION: String │ │
│ │ + WEBHOOK_TEST: String │ │
│ │ + API_TIMEOUT_MS: Int │ │
│ │ + PHOTO_QUALITY: Int │ │
│ └──────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────────┘
┌─────────────────────────────────────────────────────────────────────────┐
│ UI COMPONENTS (Compose) │
├─────────────────────────────────────────────────────────────────────────┤
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ PhotoPreviewCard │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ Parameters: │ │
│ │ - bitmap: Bitmap? │ │
│ │ - onRetake: () -> Unit │ │
│ │ - modifier: Modifier │ │
│ └──────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ LocationStatusCard │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ Parameters: │ │
│ │ - latitude: Double? │ │
│ │ - longitude: Double? │ │
│ │ - validationMessage: String │ │
│ │ - isLoading: Boolean │ │
│ │ - modifier: Modifier │ │
│ └──────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ ErrorAlertCard │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ Parameters: │ │
│ │ - message: String? │ │
│ │ - onDismiss: () -> Unit │ │
│ │ - modifier: Modifier │ │
│ └──────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ SubmitButtonWithLoader │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ Parameters: │ │
│ │ - text: String │ │
│ │ - onClick: () -> Unit │ │
│ │ - isLoading: Boolean │ │
│ │ - isEnabled: Boolean │ │
│ │ - modifier: Modifier │ │
│ └──────────────────────────────────────────────────────────────────┘ │
│ │
│ ┌──────────────────────────────────────────────────────────────────┐ │
│ │ AbsensiScreen (Composable) │ │
│ ├──────────────────────────────────────────────────────────────────┤ │
│ │ - Manages AttendanceState │ │
│ │ - Handles permissions │ │
│ │ - Orchestrates all UI components │ │
│ │ - Manages location acquisition │ │
│ │ - Handles photo capture │ │
│ │ - Manages form submission │ │
│ └──────────────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────────────────┘
```
---
## Dependencies & Imports
```
AndroidX
├── androidx.core:core-ktx
├── androidx.lifecycle:lifecycle-runtime-ktx
├── androidx.activity:activity-compose
├── androidx.compose.* (UI, Material3, Tooling)
Android Platform
├── android.location (Location APIs)
├── android.hardware.camera (Camera)
├── android.content.pm (Permissions)
Google Play Services
├── com.google.android.gms:play-services-location
│ └── Fused Location Provider
Standard Libraries
├── java.net.HttpURLConnection (API calls)
├── org.json.JSONObject (JSON serialization)
├── java.util.Base64 (Photo encoding)
Testing
└── junit, androidx.test (Unit tests)
```
---
**Architecture Design**: ✅ Clean, Modular, Testable
**Data Flow**: ✅ Unidirectional with State Management
**UI Pattern**: ✅ Compose with Material 3
**Error Handling**: ✅ Sealed Classes + Callbacks
**Scalability**: ✅ Ready for future enhancements

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# 📚 Fitur Mata Kuliah dan Absen Kehadiran
## 📋 Daftar Fitur yang Ditambahkan
Dokumentasi ini menjelaskan fitur baru yang telah ditambahkan ke aplikasi Absensi Akademik:
1. **Daftar Mata Kuliah** - Menampilkan semua mata kuliah yang tersedia
2. **Pilihan Mata Kuliah** - Memilih mata kuliah untuk absensi
3. **Riwayat Kehadiran** - Melihat riwayat absensi per mata kuliah
4. **Laporan Kehadiran** - Melihat statistik kehadiran per mata kuliah
---
## 🗂️ File-File yang Ditambahkan
### 1. **Models** (`models/CourseModels.kt`)
Berisi data class untuk:
- **`Course`**: Merepresentasikan mata kuliah
```kotlin
data class Course(
val courseId: String,
val courseCode: String,
val courseName: String,
val lecturer: String,
val credits: Int,
val schedule: String,
val room: String,
val semester: Int,
val isActive: Boolean = true
)
```
- **`AttendanceStatus`**: Enum untuk status kehadiran
- `PRESENT` - Hadir
- `LATE` - Terlambat
- `ABSENT` - Tidak hadir
- `EXCUSED` - Izin
- `SICK` - Sakit
- `PENDING` - Menunggu validasi
- `REJECTED` - Ditolak
- **`AttendanceReport`**: Laporan kehadiran per mata kuliah
```kotlin
data class AttendanceReport(
val courseId: String,
val courseName: String,
val courseCode: String,
val totalSessions: Int,
val presentCount: Int,
val lateCount: Int,
val absentCount: Int,
val excusedCount: Int,
val attendancePercentage: Double,
val attendanceRecords: List<Attendance>
)
```
---
### 2. **Config** (`config/CourseConfig.kt`)
File konfigurasi untuk mata kuliah:
```kotlin
object CourseConfig {
// Data sample mata kuliah
fun getSampleCourses(): List<Course>
// Konfigurasi kehadiran
const val MINIMUM_ATTENDANCE_PERCENTAGE = 80.0
const val MAX_EXCUSED_ABSENCES = 3
const val MAX_SICK_LEAVE = 2
}
```
---
### 3. **Service** (`utils/CourseService.kt`)
Service untuk mengelola mata kuliah dan kehadiran menggunakan SharedPreferences:
**Method-method penting:**
- `getCourses()`: Dapatkan semua mata kuliah
- `saveAttendance(attendance)`: Simpan kehadiran
- `getAttendancesByCourse(courseId)`: Dapatkan kehadiran per mata kuliah
- `generateAttendanceReport(courseId)`: Buat laporan kehadiran
- `hasAttendedToday(courseId)`: Cek sudah absen hari ini
- `getCurrentDate()`: Dapatkan tanggal hari ini
- `formatTime(timestamp)`: Format waktu
- `formatDate(dateString)`: Format tanggal
---
### 4. **UI Components** (`ui/components/CourseComponents.kt`)
Komponen Compose untuk menampilkan:
- **`CourseCard`**: Kartu untuk menampilkan informasi mata kuliah
- **`CourseListSection`**: List dari semua mata kuliah
- **`AttendanceReportCard`**: Kartu laporan kehadiran dengan statistik
- **`StatisticItem`**: Item untuk menampilkan statistik
- **`AttendanceDetailCard`**: Kartu detail kehadiran
- **`AttendanceHistoryList`**: List riwayat kehadiran
---
### 5. **Screens** (`ui/screens/CourseScreen.kt`)
Layar untuk menampilkan data mata kuliah:
- **`CourseListScreen`**: Menampilkan daftar semua mata kuliah
- **`CourseDetailScreen`**: Menampilkan detail mata kuliah dan riwayat kehadiran
---
## 🔄 Alur Penggunaan
### Alur Absensi dengan Mata Kuliah
```
1. User login / buka aplikasi
2. Aplikasi menampilkan daftar mata kuliah
3. User memilih mata kuliah yang akan diabsen
4. User mengambil foto
5. Sistem mengambil lokasi GPS
6. Sistem memvalidasi lokasi
7. User klik "Kirim Absensi"
8. Data dikirim ke server N8n dengan informasi:
- NPM & Nama
- Kode & Nama Mata Kuliah
- Latitude & Longitude
- Foto (Base64)
- Timestamp
9. Data disimpan di database lokal (SharedPreferences)
10. User dapat melihat riwayat kehadiran per mata kuliah
```
---
## 📊 Struktur Data Kehadiran
Setiap record kehadiran menyimpan:
```json
{
"npm": "202310715082",
"nama": "Fazri Abdurrahman",
"courseId": "COURSE_001",
"courseCode": "PBO2024",
"courseName": "Pemrograman Berorientasi Objek",
"latitude": -7.000123,
"longitude": 110.400456,
"date": "2025-01-14",
"time": "08:15:30",
"timestamp": 1705228530000,
"status": "PRESENT",
"isValid": true,
"fotoBase64": "[base64_encoded_image]",
"submissionResult": "Success: ✓ Absensi diterima server"
}
```
---
## 🔌 Integrasi dengan N8n Webhook
Data kehadiran dikirim ke N8n dengan format:
```json
{
"npm": "202310715082",
"nama": "Fazri Abdurrahman",
"courseId": "COURSE_001",
"courseCode": "PBO2024",
"courseName": "Pemrograman Berorientasi Objek",
"latitude": -7.000123,
"longitude": 110.400456,
"timestamp": 1705228530000,
"foto_base64": "[base64_encoded_image]"
}
```
---
## 📈 Laporan Kehadiran
Fitur laporan menampilkan:
- **Total Sesi**: Jumlah total sesi perkuliahan
- **Hadir**: Jumlah kehadiran tepat waktu
- **Terlambat**: Jumlah kehadiran terlambat
- **Tidak Hadir**: Jumlah tidak hadir
- **Izin/Sakit**: Jumlah dengan izin atau sakit
- **Persentase Kehadiran**: Persentase kehadiran (Hadir + Terlambat) / Total
---
## 🎨 UI/UX Improvements
### 1. **Course Selection Card**
- Menampilkan mata kuliah yang dipilih
- Dialog selector untuk memilih dari daftar
- Menampilkan informasi dosen dan kode mata kuliah
### 2. **Course Detail View**
- Informasi lengkap mata kuliah
- Jadwal, ruang, SKS, dosen pengampu
- Riwayat kehadiran yang dapat discroll
### 3. **Attendance Statistics**
- Visual representation dengan warna:
- Hijau: ≥80% (Memuaskan)
- Orange: 70-79% (Cukup)
- Merah: <70% (Kurang)
---
## 💾 Penyimpanan Data
Data disimpan menggunakan **SharedPreferences** dengan Gson serialization:
```
SharedPreferences Key: "course_attendance_db"
├── courses_list: List<Course> (JSON)
├── attendance_list: List<Attendance> (JSON)
└── selected_course: Course (JSON)
```
---
## 🔧 Konfigurasi
### Menambahkan Mata Kuliah Baru
Edit `CourseConfig.kt` dan tambahkan di `getSampleCourses()`:
```kotlin
Course(
courseId = "COURSE_006",
courseCode = "NEWCODE2024",
courseName = "Nama Mata Kuliah",
lecturer = "Nama Dosen",
credits = 3,
schedule = "Hari HH:MM-HH:MM",
room = "Ruang Kelas",
semester = 4,
isActive = true
)
```
### Mengubah Threshold Kehadiran
Edit di `CourseConfig.kt`:
```kotlin
const val MINIMUM_ATTENDANCE_PERCENTAGE = 80.0 // Default 80%
const val MAX_EXCUSED_ABSENCES = 3 // Maksimal 3 izin
const val MAX_SICK_LEAVE = 2 // Maksimal 2 sakit
```
---
## 🚀 Penggunaan API
### Mendapatkan Daftar Mata Kuliah
```kotlin
val courseService = CourseService(context)
val courses = courseService.getCourses()
```
### Menyimpan Kehadiran
```kotlin
val attendance = Attendance(
npm = "202310715082",
nama = "Fazri Abdurrahman",
courseId = "COURSE_001",
courseCode = "PBO2024",
courseName = "Pemrograman Berorientasi Objek",
latitude = -7.000123,
longitude = 110.400456,
timestamp = System.currentTimeMillis(),
date = courseService.getCurrentDate(),
time = courseService.formatTime(System.currentTimeMillis()),
status = AttendanceStatus.PRESENT,
isValid = true
)
courseService.saveAttendance(attendance)
```
### Membuat Laporan Kehadiran
```kotlin
val report = courseService.generateAttendanceReport("COURSE_001")
println("Persentase: ${report.attendancePercentage}%")
println("Hadir: ${report.presentCount}/${report.totalSessions}")
```
### Cek Sudah Absen Hari Ini
```kotlin
val hasAttended = courseService.hasAttendedToday("COURSE_001")
if (hasAttended) {
Toast.makeText(context, "Anda sudah absen hari ini", Toast.LENGTH_SHORT).show()
}
```
---
## 📝 Testing
Untuk testing fitur:
1. **Test Mata Kuliah**
- Buka aplikasi
- Lihat daftar mata kuliah
- Klik untuk melihat detail
- Cek riwayat kehadiran
2. **Test Absensi dengan Mata Kuliah**
- Pilih mata kuliah
- Ambil foto
- Klik tombol absensi
- Verifikasi data tersimpan
3. **Test Laporan**
- Buka detail mata kuliah
- Lihat statistik kehadiran
- Cek persentase kehadiran
---
## 📱 Dependency Baru
Tambahkan di `build.gradle.kts`:
```gradle
implementation("com.google.code.gson:gson:2.10.1")
```
---
## 🔒 Catatan Keamanan
1. **Data Sensitif**: Foto tidak disimpan langsung, hanya Base64 di memory
2. **Koordinat**: Dapat disesuaikan dengan OFFSET di config untuk privasi
3. **Server**: Semua data dikrim via HTTPS ke N8n webhook
4. **Local Storage**: Data disimpan di SharedPreferences yang aman
---
## 🆘 Troubleshooting
### Error: "Tidak ada mata kuliah"
- Pastikan `courseService.initializeSampleData()` dipanggil saat startup
- Periksa SharedPreferences di Android Studio Device Explorer
### Error: "Gson class not found"
- Pastikan gradle dependency sudah ditambahkan
- Run `gradle sync` atau rebuild project
### Kehadiran tidak tersimpan
- Periksa permissions untuk SharedPreferences
- Verifikasi format data Attendance
- Cek logcat untuk error messages
---
## 📌 Update Notes
**Version 1.0** (14 Januari 2025):
- ✅ Fitur daftar mata kuliah
- ✅ Pilihan mata kuliah saat absensi
- ✅ Penyimpanan kehadiran per mata kuliah
- ✅ Laporan kehadiran dan statistik
- ✅ Integrasi N8n dengan informasi mata kuliah
- ✅ Riwayat kehadiran per mata kuliah

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# 📱 Aplikasi Absensi Akademik Berbasis Koordinat dan Foto
## 📋 Deskripsi Proyek
Aplikasi mobile Android untuk sistem absensi akademik yang menggunakan **lokasi GPS** dan **pengambilan foto** untuk validasi kehadiran mahasiswa. Aplikasi ini dirancang untuk mencegah kecurangan absensi dan meningkatkan integritas sistem kehadiran.
## ✨ Fitur Utama
- 🔐 **Login Pengguna** - Autentikasi mahasiswa
- 📍 **Tracking Lokasi Real-time** - Menggunakan Fused Location Provider
- 🏫 **Validasi Area Absensi** - Radius-based location validation
- 📸 **Pengambilan Foto Selfie** - Dokumentasi kehadiran
- ✓ **Validasi Data** - Memastikan semua data lengkap sebelum submit
- 📡 **Integrasi N8n Webhook** - Pengiriman data ke server
- ⚠️ **Error Handling** - Pesan error yang user-friendly
- 🔄 **Loading States** - Visual feedback untuk proses async
## 🛠️ Tech Stack
- **Platform**: Android 12+ (API 28+)
- **Language**: Kotlin
- **UI Framework**: Jetpack Compose
- **Location Services**: Google Play Services (Fused Location Provider)
- **Camera**: Android Camera Intent
- **Networking**: HttpURLConnection + JSON
- **Build Tool**: Gradle Kotlin DSL
## 📦 Struktur Proyek
```
app/src/main/
├── java/id/ac/ubharajaya/sistemakademik/
│ ├── MainActivity.kt # Main UI dan Activity
│ ├── config/
│ │ └── AttendanceConfig.kt # Konfigurasi aplikasi
│ ├── models/
│ │ └── AttendanceRecord.kt # Data models
│ ├── network/
│ │ └── N8nService.kt # API service untuk N8n
│ ├── utils/
│ │ ├── LocationValidator.kt # Validasi lokasi
│ │ └── ErrorHandler.kt # Error handling
│ └── ui/
│ ├── components/
│ │ └── AttendanceComponents.kt # Reusable UI components
│ └── theme/
│ └── Theme.kt # Material 3 theme
└── res/ # Resources
```
## 🚀 Cara Menjalankan
### Prerequisites
- Android Studio (Flamingo atau lebih baru)
- Android SDK 28 atau lebih baru
- Device/Emulator dengan Google Play Services
### Setup
1. **Clone atau buka project**
```bash
cd Starter-EAS-2025-2026
```
2. **Sinkronisasi Gradle**
- Android Studio akan otomatis sinkronisasi atau jalankan:
```bash
./gradlew sync
```
3. **Update Konfigurasi** (opsional)
- Edit `AttendanceConfig.kt` untuk mengubah:
- Koordinat referensi kampus
- Radius area absensi
- NPM dan Nama mahasiswa
- Webhook URL
4. **Build & Run**
```bash
./gradlew installDebug
```
atau gunakan tombol "Run" di Android Studio
## ⚙️ Konfigurasi
### AttendanceConfig.kt
File ini berisi semua konfigurasi aplikasi:
```kotlin
// Lokasi kampus (latitude, longitude)
const val REFERENCE_LATITUDE = -7.0
const val REFERENCE_LONGITUDE = 110.4
// Radius area absensi (meter)
const val ALLOWED_RADIUS_METERS = 100.0
// Data mahasiswa
const val STUDENT_NPM = "202310715082"
const val STUDENT_NAMA = "Fazri Abdurrahman"
// Webhook endpoints
const val WEBHOOK_PRODUCTION = "https://n8n.lab.ubharajaya.ac.id/webhook/..."
const val WEBHOOK_TEST = "https://n8n.lab.ubharajaya.ac.id/webhook-test/..."
```
### Mengubah Koordinat Referensi
1. Buka `AttendanceConfig.kt`
2. Update `REFERENCE_LATITUDE` dan `REFERENCE_LONGITUDE`
3. Atur `ALLOWED_RADIUS_METERS` sesuai kebutuhan
4. Rebuild aplikasi
## 🔐 Permissions
Aplikasi memerlukan permissions berikut:
- `ACCESS_FINE_LOCATION` - Untuk GPS precision
- `ACCESS_COARSE_LOCATION` - Fallback lokasi
- `CAMERA` - Untuk pengambilan foto
- `INTERNET` - Untuk komunikasi dengan server
Semua permissions diminta secara runtime (Android 6+).
## 📡 API Integration
### Webhook N8n
Aplikasi mengirim data ke N8n webhook dengan format:
```json
{
"npm": "202310715082",
"nama": "Fazri Abdurrahman",
"latitude": -7.0251,
"longitude": 110.4105,
"timestamp": 1705250400000,
"foto_base64": "base64_encoded_image_string"
}
```
### Response Handling
- **Status 200**: Absensi diterima, akan reset form setelah 2 detik
- **Status lain**: Error, tampilkan pesan error
## 🎨 UI Components
### 1. PhotoPreviewCard
Menampilkan preview foto yang diambil dengan opsi untuk ambil ulang.
### 2. LocationStatusCard
Menampilkan status lokasi, koordinat, dan jarak dari titik referensi.
### 3. ErrorAlertCard
Card untuk menampilkan error messages yang dismissable.
### 4. SubmitButtonWithLoader
Button dengan loading indicator untuk submit.
## 🔧 Validasi Lokasi
### Haversine Formula
Aplikasi menggunakan Haversine formula untuk menghitung jarak antara dua koordinat GPS:
```kotlin
d = 2 * R * asin(sqrt(sin²(Δφ/2) + cos(φ1) * cos(φ2) * sin²(Δλ/2)))
```
### Proses Validasi
1. Ambil koordinat mahasiswa dari GPS
2. Hitung jarak ke koordinat referensi
3. Bandingkan dengan ALLOWED_RADIUS_METERS
4. Tampilkan status valid/invalid
## 🐛 Troubleshooting
### GPS tidak berfungsi
- Pastikan aplikasi memiliki izin GPS
- Nyalakan location services di device
- Gunakan device dengan Google Play Services
### Foto tidak terakses
- Pastikan izin CAMERA granted
- Coba restart aplikasi
### Koneksi ke N8n gagal
- Cek internet connection
- Verifikasi webhook URL di `AttendanceConfig.kt`
- Test dengan `WEBHOOK_TEST` terlebih dahulu
### Lokasi selalu invalid
- Update koordinat referensi di `AttendanceConfig.kt`
- Tingkatkan `ALLOWED_RADIUS_METERS` jika diperlukan
## 📊 Testing
### Test dengan N8n Webhook Test
1. Set `isTest = true` di MainActivity submit button
2. Data akan dikirim ke `WEBHOOK_TEST`
3. Lihat response di N8n dashboard
### Manual Testing Checklist
- [ ] Permission request berfungsi
- [ ] GPS location terakses
- [ ] Camera foto terakses
- [ ] Foto preview ditampilkan
- [ ] Validasi lokasi bekerja
- [ ] Submit ke webhook berhasil
- [ ] Error handling tampil dengan baik
## 📝 Notes
### Privacy & Security
- Foto disimpan sebagai JPEG dengan quality 80%
- Koordinat dapat di-offset untuk privacy (lihat `AttendanceConfig.LATITUDE_OFFSET`)
- Gunakan HTTPS untuk komunikasi dengan server
- Implementasikan authentication token di N8n
### Future Improvements
- [ ] Attendance history dengan Room Database
- [ ] User login screen
- [ ] Multiple course support
- [ ] Biometric verification
- [ ] Offline mode dengan sync
- [ ] Push notifications untuk deadline
- [ ] QR code verification
## 📧 Support
Untuk pertanyaan atau masalah, silakan hubungi:
- **Institusi**: Universitas Bhakti Raharya
- **Mata Kuliah**: Pemrograman Mobile
- **Tahun Ajaran**: 2025-2026
## 📄 License
Project ini dibuat sebagai tugas akademik. Gunakan dengan bijak.
---
**Version**: 1.0
**Last Updated**: January 14, 2026

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@ -1,389 +0,0 @@
# 📱 Ringkasan Implementasi Fitur Mata Kuliah dan Absen Kehadiran
## ✅ Fitur yang Telah Ditambahkan
### 1. **Daftar Mata Kuliah**
- Menampilkan semua mata kuliah yang tersedia
- Informasi lengkap: kode, nama, dosen, jadwal, ruang, SKS
- Dapat memilih mata kuliah untuk absensi
- Menyimpan pilihan mata kuliah terakhir
### 2. **Absensi dengan Mata Kuliah**
- User dapat memilih mata kuliah sebelum absensi
- Data kehadiran disimpan dengan informasi mata kuliah lengkap
- Dikirim ke N8n webhook dengan format JSON yang lebih lengkap
### 3. **Riwayat Kehadiran**
- Melihat riwayat absensi per mata kuliah
- Tanggal, waktu, dan status kehadiran
- Dapat difilter berdasarkan status (hadir, terlambat, tidak hadir, dll)
### 4. **Laporan Kehadiran**
- Statistik kehadiran per mata kuliah
- Persentase kehadiran dengan visual indicator (hijau/orange/merah)
- Total sesi, hadir, terlambat, tidak hadir, izin/sakit
- Automatic calculation dari history kehadiran
---
## 📁 File-File yang Ditambahkan
### Models Layer
- **`models/CourseModels.kt`** - Data class untuk Course, Attendance, AttendanceStatus, AttendanceReport
### Configuration Layer
- **`config/CourseConfig.kt`** - Konfigurasi mata kuliah dan threshold kehadiran
### Service Layer
- **`utils/CourseService.kt`** - Service untuk CRUD operasi mata kuliah dan kehadiran
- **`utils/AttendanceUtils.kt`** - Utility function untuk operasi kehadiran
### UI Components Layer
- **`ui/components/CourseComponents.kt`** - Reusable components untuk tampilan mata kuliah dan kehadiran
### Screen/UI Layer
- **`ui/screens/CourseScreen.kt`** - Screens untuk menampilkan daftar dan detail mata kuliah
---
## 🔄 Alur Data Flow
```
User Interface (MainActivity.kt)
CourseService (Manage data)
SharedPreferences (Local Storage)
N8nService (Send to server)
N8n Webhook → Google Sheets
```
---
## 📊 Data Struktur
### Course Model
```kotlin
data class Course(
val courseId: String, // ID unik mata kuliah
val courseCode: String, // Kode mata kuliah (PBO2024)
val courseName: String, // Nama mata kuliah
val lecturer: String, // Nama dosen
val credits: Int, // Jumlah SKS
val schedule: String, // Jadwal (Senin 08:00-09:30)
val room: String, // Ruang kelas (A-101)
val semester: Int, // Semester
val isActive: Boolean // Status aktif
)
```
---
## 🎯 Perubahan di MainActivity.kt
### Sebelum
```kotlin
fun AbsensiScreen(
modifier: Modifier = Modifier,
activity: ComponentActivity
) {
var state by remember { mutableStateOf(AttendanceState()) }
val fusedLocationClient = LocationServices.getFusedLocationProviderClient(context)
val n8nService = remember { N8nService(activity) }
// Hanya absensi tanpa mata kuliah
n8nService.submitAttendance(...)
}
```
### Sesudah
```kotlin
fun AbsensiScreen(
modifier: Modifier = Modifier,
activity: ComponentActivity
) {
var state by remember { mutableStateOf(AttendanceState()) }
var courses by remember { mutableStateOf<List<Course>>(emptyList()) }
var selectedCourse by remember { mutableStateOf<Course?>(null) }
val courseService = remember { CourseService(context) }
// Initialize courses
LaunchedEffect(Unit) {
courseService.initializeSampleData()
courses = courseService.getCourses()
selectedCourse = courseService.getSelectedCourse() ?: courses.firstOrNull()
}
// Absensi dengan pilihan mata kuliah
n8nService.submitAttendanceWithCourse(
courseId = selectedCourse!!.courseId,
courseCode = selectedCourse!!.courseCode,
courseName = selectedCourse!!.courseName,
...
)
// Simpan ke database lokal
courseService.saveAttendance(attendance)
}
```
---
## 🔌 Perubahan di N8nService.kt
### Method Baru
```kotlin
fun submitAttendanceWithCourse(
npm: String,
nama: String,
courseId: String,
courseCode: String,
courseName: String,
latitude: Double,
longitude: Double,
foto: Bitmap,
isTest: Boolean = false,
callback: SubmitCallback? = null
) {
// Send to N8n dengan informasi mata kuliah
val json = JSONObject().apply {
put("npm", npm)
put("nama", nama)
put("courseId", courseId)
put("courseCode", courseCode)
put("courseName", courseName)
put("latitude", latitude)
put("longitude", longitude)
put("timestamp", System.currentTimeMillis())
put("foto_base64", bitmapToBase64(foto))
}
}
```
---
## 💾 Penyimpanan Data
Data disimpan di **SharedPreferences** dengan struktur:
```
SharedPreferences Database: "course_attendance_db"
├── courses_list (JSON)
│ └── [Course, Course, Course, ...]
├── attendance_list (JSON)
│ └── [Attendance, Attendance, Attendance, ...]
└── selected_course (JSON)
└── Current selected Course
```
---
## 🚀 Cara Menggunakan
### 1. Initialize CourseService
```kotlin
val courseService = CourseService(context)
courseService.initializeSampleData()
```
### 2. Dapatkan Daftar Mata Kuliah
```kotlin
val courses = courseService.getCourses()
courses.forEach { course ->
println("${course.courseCode} - ${course.courseName}")
}
```
### 3. Pilih Mata Kuliah
```kotlin
val selectedCourse = courses.first()
courseService.setSelectedCourse(selectedCourse)
```
### 4. Simpan Kehadiran
```kotlin
val attendance = Attendance(
npm = "202310715082",
nama = "Fazri Abdurrahman",
courseId = "COURSE_001",
courseCode = "PBO2024",
courseName = "Pemrograman Berorientasi Objek",
latitude = -7.000123,
longitude = 110.400456,
timestamp = System.currentTimeMillis(),
date = courseService.getCurrentDate(),
time = courseService.formatTime(System.currentTimeMillis()),
status = AttendanceStatus.PRESENT,
isValid = true
)
courseService.saveAttendance(attendance)
```
### 5. Buat Laporan Kehadiran
```kotlin
val report = courseService.generateAttendanceReport("COURSE_001")
println("Persentase: ${report.attendancePercentage}%")
println("Hadir: ${report.presentCount}/${report.totalSessions}")
```
---
## 📱 UI Components yang Baru
### CourseCard
Menampilkan informasi singkat mata kuliah dengan design yang menarik
### CourseListSection
List of courses dengan scroll support dan loading state
### AttendanceReportCard
Menampilkan statistik kehadiran dengan progress visual
### AttendanceDetailCard
Menampilkan detail satu record kehadiran
### AttendanceHistoryList
List riwayat kehadiran dengan infinite scroll
---
## 🔧 Konfigurasi
### Tambah Mata Kuliah Baru
Edit `CourseConfig.kt`:
```kotlin
Course(
courseId = "COURSE_006",
courseCode = "NEWCODE2024",
courseName = "Nama Mata Kuliah Baru",
lecturer = "Nama Dosen",
credits = 3,
schedule = "Hari HH:MM-HH:MM",
room = "Ruang Kelas",
semester = 4,
isActive = true
)
```
### Ubah Threshold Kehadiran
Edit `CourseConfig.kt`:
```kotlin
const val MINIMUM_ATTENDANCE_PERCENTAGE = 80.0 // Minimum 80%
const val MAX_EXCUSED_ABSENCES = 3 // Maksimal 3 izin
const val MAX_SICK_LEAVE = 2 // Maksimal 2 sakit
```
---
## 🧪 Testing
### Test Scenario 1: Daftar Mata Kuliah
1. Buka app
2. Lihat daftar mata kuliah di section atas
3. Verifikasi ada 5 mata kuliah default
### Test Scenario 2: Pilih Mata Kuliah
1. Klik tombol "Pilih Mata Kuliah"
2. Dialog muncul dengan daftar mata kuliah
3. Pilih salah satu
4. Verifikasi mata kuliah terpilih ditampilkan
### Test Scenario 3: Absensi Lengkap
1. Pilih mata kuliah
2. Ambil foto
3. Tunggu lokasi terdeteksi
4. Klik "Kirim Absensi"
5. Verifikasi pesan sukses dan data tersimpan
### Test Scenario 4: Lihat Riwayat
1. Setelah absensi berhasil
2. Buka detail mata kuliah
3. Lihat riwayat kehadiran
4. Verifikasi ada record kehadiran baru
### Test Scenario 5: Laporan Kehadiran
1. Buka detail mata kuliah
2. Lihat statistik kehadiran di atas
3. Verifikasi persentase dihitung dengan benar
---
## 📦 Dependencies Baru
Tambahkan di `app/build.gradle.kts`:
```gradle
implementation("com.google.code.gson:gson:2.10.1")
```
---
## 🐛 Troubleshooting
### Issue: "Tidak ada mata kuliah"
**Solusi**:
```kotlin
// Pastikan initialization di startup
courseService.initializeSampleData()
```
### Issue: Data tidak tersimpan
**Solusi**:
- Cek SharedPreferences di Device Explorer
- Verifikasi format data JSON
- Cek permissions untuk write
### Issue: Kehadiran tidak terkirim ke N8n
**Solusi**:
- Pastikan network connection aktif
- Verifikasi webhook URL di AttendanceConfig
- Cek logcat untuk error details
### Issue: Laporan kehadiran tidak update
**Solusi**:
```kotlin
// Force refresh
val report = courseService.generateAttendanceReport(courseId)
```
---
## 📈 Fitur yang Mungkin Ditambahkan di Masa Depan
- [ ] Filter attendance berdasarkan rentang tanggal
- [ ] Export laporan ke PDF/Excel
- [ ] Multi-semester support
- [ ] Notification untuk kehadiran di bawah threshold
- [ ] Analytics dashboard
- [ ] Sync dengan server API
- [ ] Offline mode dengan sync otomatis
- [ ] QR code untuk quick attendance
---
## 📝 Catatan Penting
1. **Data Privacy**: Semua data sensitif dikirim via HTTPS
2. **Local Storage**: Menggunakan SharedPreferences (aman untuk level ini)
3. **Photo Handling**: Foto dikonversi ke Base64 hanya saat pengiriman
4. **Database**: Menggunakan Gson untuk serialisasi/deserialisasi JSON
---
## 🎯 Hasil Akhir
**Fitur Mata Kuliah** - Daftar, pilih, dan kelola mata kuliah
**Fitur Absensi** - Absensi dengan pilihan mata kuliah lengkap
**Fitur Riwayat** - Lihat history kehadiran per mata kuliah
**Fitur Laporan** - Statistik dan analisis kehadiran
**Integration** - Terintegrasi dengan N8n webhook
**Storage** - Penyimpanan lokal dengan SharedPreferences
---
**Status**: ✅ **SELESAI** - Semua fitur siap digunakan
**Last Updated**: 14 Januari 2026
**Version**: 1.0

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# 📖 Panduan Implementasi Aplikasi Absensi Akademik
## 🎯 Gambaran Umum Implementasi
Aplikasi ini telah diimplementasikan dengan arsitektur yang modular dan clean, memisahkan concerns menjadi beberapa layers:
1. **UI Layer** (Compose Components)
2. **Network Layer** (API Communication)
3. **Utils Layer** (Business Logic)
4. **Config Layer** (Configuration Management)
5. **Models Layer** (Data Classes)
---
## 📂 File Structure Lengkap
### Core Application
```
MainActivity.kt # Entry point & main UI screen
```
### Configuration
```
config/
└─ AttendanceConfig.kt # Centralized configuration
```
### Data Models
```
models/
└─ AttendanceRecord.kt # Data classes:
# - AttendanceRecord
# - LocationData
# - ValidationResult
# - AttendanceState
# - ValidationStatus enum
```
### Network Communication
```
network/
└─ N8nService.kt # API service untuk N8n webhook
```
### Utilities
```
utils/
├─ LocationValidator.kt # Location validation logic:
# - calculateDistance (Haversine)
# - isLocationValid
# - getValidationMessage
# - adjustCoordinates
└─ ErrorHandler.kt # Error handling & messages
```
### UI Components
```
ui/
├─ components/
│ └─ AttendanceComponents.kt # Reusable components:
│ # - PhotoPreviewCard
│ # - LocationStatusCard
│ # - ErrorAlertCard
│ # - SubmitButtonWithLoader
└─ theme/
├─ Theme.kt # Material 3 theme
├─ Color.kt # Color definitions
└─ Type.kt # Typography definitions
```
### Tests
```
test/
└─ java/id/ac/ubharajaya/sistemakademik/
└─ utils/
└─ LocationValidatorTest.kt # Unit tests
```
---
## 🔄 Flow Diagram
```
┌─────────────────────────────────────────────────────────────┐
│ MainActivity │
│ (Jetpack Compose UI + State Management) │
└────────────────────┬────────────────────────────────────────┘
┌───────────┴───────────┐
│ │
┌────▼─────────┐ ┌──────▼──────────┐
│ Location │ │ Camera │
│ Permissions │ │ Permissions │
└────┬─────────┘ └──────┬──────────┘
│ │
┌────▼──────────────────────▼────┐
│ LocationValidator │
│ (Haversine distance calc) │
└────┬─────────────────────────────┘
┌────▼──────────────────────────┐
│ Validation Result │
│ (Valid/Invalid) │
└────┬─────────────────────────┘
┌────▼────────────────────────────────┐
│ N8nService │
│ (HTTP POST to Webhook) │
└────┬────────────────────────────────┘
┌────▼────────────────────┐
│ N8n Server │
│ (Webhook Processing) │
└─────────────────────────┘
```
---
## 🚀 Penggunaan Aplikasi
### Alur Pengguna
1. **Buka Aplikasi** → MainActivity dimuat
2. **Minta Izin Lokasi** → LocationPermissionLauncher diaktifkan otomatis
3. **Ambil Lokasi** → Fused Location Provider mengambil GPS
4. **Validasi Lokasi** → LocationValidator mengecek jarak
5. **Tampilkan Status** → LocationStatusCard menampilkan hasil
6. **Ambil Foto** → CameraPermissionLauncher + Intent Camera
7. **Preview Foto** → PhotoPreviewCard menampilkan hasil
8. **Validasi Data** → Cek semua field terpenuhi
9. **Kirim Data** → N8nService POST ke webhook
10. **Tampilkan Hasil** → Success/Error message
---
## ⚙️ State Management
### AttendanceState Data Class
```kotlin
data class AttendanceState(
val location: LocationData? = null, // GPS coordinates
val foto: Bitmap? = null, // Camera image
val isLoadingLocation: Boolean = false, // GPS acquiring
val isLoadingSubmit: Boolean = false, // API submitting
val validationResult: ValidationResult = ..., // Location validation
val errorMessage: String? = null, // Error feedback
val isLocationPermissionGranted: Boolean = false,
val isCameraPermissionGranted: Boolean = false
)
```
### State Updates
State diupdate secara reactive menggunakan:
```kotlin
var state by remember { mutableStateOf(AttendanceState()) }
state = state.copy(location = newLocation) // Immutable update
```
---
## 📍 Validasi Lokasi Detil
### Haversine Formula
Untuk menghitung jarak akurat antara dua koordinat:
```
Formula:
a = sin²(Δφ/2) + cos(φ1) × cos(φ2) × sin²(Δλ/2)
c = 2 × atan2(√a, √(1a))
d = R × c
Di mana:
- φ adalah latitude (dalam radian)
- λ adalah longitude (dalam radian)
- R adalah radius bumi (6,371 km)
```
### Contoh Validasi
```kotlin
// Referensi lokasi kampus
const val REFERENCE_LATITUDE = -7.0
const val REFERENCE_LONGITUDE = 110.4
// Lokasi mahasiswa (dari GPS)
val studentLatitude = -7.0035
val studentLongitude = 110.4042
// Hitung jarak
val distance = LocationValidator.calculateDistance(
REFERENCE_LATITUDE, REFERENCE_LONGITUDE,
studentLatitude, studentLongitude
)
// Result: ~500 meter
// Validasi terhadap radius (100m)
val isValid = distance <= 100.0 // false
```
---
## 📡 API Integration Detail
### Request Format
```json
{
"npm": "202310715082",
"nama": "Fazri Abdurrahman",
"latitude": -7.0035,
"longitude": 110.4042,
"timestamp": 1705250400000,
"foto_base64": "iVBORw0KGgoAAAANSUhEUgAAAAEA..."
}
```
### Response Handling
```kotlin
HttpURLConnection.HTTP_OK (200) // Success - absensi diterima
HttpURLConnection.HTTP_BAD_REQUEST (400) // Error - data invalid
HttpURLConnection.HTTP_UNAUTHORIZED (401) // Error - auth failed
HttpURLConnection.HTTP_INTERNAL_ERROR (500) // Error - server error
```
### Error Callback
```kotlin
interface SubmitCallback {
fun onSuccess(responseCode: Int, message: String)
fun onError(error: Throwable, message: String)
}
```
---
## 🎨 UI Components Detail
### 1. PhotoPreviewCard
```kotlin
PhotoPreviewCard(
bitmap = state.foto, // Bitmap dari camera
onRetake = { /* reset foto */ }
)
```
- Menampilkan preview foto
- Button "Ambil Ulang" untuk mengganti foto
- Placeholder jika belum ada foto
### 2. LocationStatusCard
```kotlin
LocationStatusCard(
latitude = state.location?.latitude,
longitude = state.location?.longitude,
validationMessage = state.validationResult.message,
isLoading = state.isLoadingLocation
)
```
- Menampilkan koordinat GPS
- Pesan validasi (✓ valid atau ✗ invalid)
- Loading spinner saat mengambil lokasi
### 3. ErrorAlertCard
```kotlin
ErrorAlertCard(
message = state.errorMessage,
onDismiss = { /* hide error */ }
)
```
- Card merah untuk error messages
- Dismissable dengan tombol X
- Auto-hide saat tidak ada error
### 4. SubmitButtonWithLoader
```kotlin
SubmitButtonWithLoader(
text = "Kirim Absensi",
onClick = { /* submit */ },
isLoading = state.isLoadingSubmit,
isEnabled = canSubmit
)
```
- Button dengan loading indicator
- Disabled saat proses
- Spinner bertekstur saat loading
---
## 🔐 Permission Handling
### Automatic Permission Request
```kotlin
LaunchedEffect(Unit) {
locationPermissionLauncher.launch(
Manifest.permission.ACCESS_FINE_LOCATION
)
}
```
- Dipanggil otomatis saat app launch
- Request CAMERA saat user klik "Ambil Foto"
### Permission Check
```kotlin
if (ContextCompat.checkSelfPermission(context,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED)
```
---
## 🧪 Testing
### Unit Test LocationValidator
```bash
./gradlew test
```
Test cases:
- ✓ Distance calculation accuracy
- ✓ Validation logic (within/outside radius)
- ✓ Message generation
- ✓ Coordinate adjustment
- ✓ Mathematical properties (symmetry, triangle inequality)
### Manual Testing Checklist
```
[ ] Permissions diminta dengan benar
[ ] Lokasi GPS terakses saat connected
[ ] Card lokasi menampilkan koordinat
[ ] Validasi menunjukkan jarak akurat
[ ] Camera intent terbuka saat "Ambil Foto" diklik
[ ] Foto preview ditampilkan setelah capture
[ ] Form disabled saat lokasi invalid
[ ] Submit button hanya enable jika semua valid
[ ] Loading spinner muncul saat submit
[ ] Success message muncul setelah 200 response
[ ] Error message muncul setelah gagal
[ ] Form reset setelah 2 detik sukses
```
---
## 🛠️ Customization Guide
### Ubah Koordinat Referensi
**File**: `AttendanceConfig.kt`
```kotlin
const val REFERENCE_LATITUDE = -7.025 // Ubah ke lokasi kampus
const val REFERENCE_LONGITUDE = 110.415
```
### Ubah Radius Area
```kotlin
const val ALLOWED_RADIUS_METERS = 150.0 // Ubah ke radius yang diinginkan
```
### Ubah Data Mahasiswa
```kotlin
const val STUDENT_NPM = "202310715082"
const val STUDENT_NAMA = "Fazri Abdurrahman"
```
### Ubah Webhook URL
```kotlin
const val WEBHOOK_PRODUCTION = "https://your-webhook-url/..."
const val WEBHOOK_TEST = "https://your-test-webhook-url/..."
```
### Ubah Photo Quality
```kotlin
const val PHOTO_QUALITY = 80 // 0-100, lebih tinggi = lebih besar file
```
---
## 📊 Monitoring & Debugging
### Enable Logging
```kotlin
// Di N8nService, tambahkan:
Log.d("N8nService", "Request: $json")
Log.d("N8nService", "Response Code: $responseCode")
```
### Check Permission Status
```kotlin
val hasLocationPermission = ContextCompat.checkSelfPermission(
context, Manifest.permission.ACCESS_FINE_LOCATION
) == PackageManager.PERMISSION_GRANTED
```
### Validate GPS
- Buka Google Maps untuk confirm GPS aktif
- Verifikasi koordinat akurat di Maps
- Test di lokasi berbeda untuk validate radius
### Test Webhook
1. Gunakan `WEBHOOK_TEST` terlebih dahulu
2. Cek response di N8n dashboard
3. Verify data received dengan benar
4. Switch ke `WEBHOOK_PRODUCTION` saat siap
---
## 🚨 Common Issues & Solutions
| Issue | Cause | Solution |
|-------|-------|----------|
| GPS tidak berfungsi | Location permission ditolak | Buka Settings > Permissions > Location |
| Lokasi selalu invalid | Koordinat referensi salah | Update `REFERENCE_LATITUDE/LONGITUDE` |
| Foto tidak terakses | Camera permission ditolak | Buka Settings > Permissions > Camera |
| Submit gagal | Network issue | Check internet connection |
| Webhook 404 | URL salah | Verify webhook URL di `AttendanceConfig` |
---
## 📚 Dependencies
```gradle
// Sudah terinclude di build.gradle.kts:
- androidx.core:core-ktx
- androidx.lifecycle:lifecycle-runtime-ktx
- androidx.compose.* (UI framework)
- com.google.android.gms:play-services-location (GPS)
- Material 3 (Design system)
```
---
## 🔄 Next Steps / Future Features
### Phase 2 (Future)
- [ ] Attendance history dengan Room Database
- [ ] User login screen dengan authentication
- [ ] Support multiple courses/classes
- [ ] Attendance statistics & reports
- [ ] Push notifications untuk deadline
- [ ] Offline mode dengan sync
### Phase 3 (Advanced)
- [ ] Biometric verification (fingerprint)
- [ ] QR code verification
- [ ] Face recognition
- [ ] Real-time attendance dashboard
- [ ] Mobile app backend server
---
## 📞 Support & Contact
Untuk pertanyaan atau issues:
1. Check logs di Android Studio Logcat
2. Review error messages di app
3. Test dengan webhook test terlebih dahulu
4. Verify configurations di `AttendanceConfig.kt`
---
**Last Updated**: January 14, 2026
**Version**: 1.0
**Status**: ✅ Production Ready

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# 🎓 Ringkasan Implementasi Aplikasi Absensi Akademik
## 📋 Project Status: ✅ COMPLETE & PRODUCTION READY
---
## 🎯 Apa yang Telah Diimplementasikan
### Core Features ✅
- [x] **Location-Based Attendance** - Validasi lokasi mahasiswa menggunakan GPS
- [x] **Photo Verification** - Pengambilan foto selfie untuk dokumentasi absensi
- [x] **Location Validation** - Haversine formula untuk akurat menghitung jarak
- [x] **Radius-Based Verification** - Checking apakah mahasiswa dalam area yang ditentukan
- [x] **API Integration** - Kirim data ke N8n webhook
- [x] **Error Handling** - User-friendly error messages dan recovery flows
- [x] **State Management** - Proper state handling dengan Jetpack Compose
- [x] **UI Components** - Reusable dan maintainable Compose components
- [x] **Permission Handling** - Runtime permissions untuk Location dan Camera
- [x] **Configuration Management** - Centralized config untuk easy customization
### Technical Architecture ✅
- [x] **Clean Architecture** - Separation of concerns (UI, Network, Utils, Config)
- [x] **MVVM Pattern** - State management dengan mutableStateOf
- [x] **Modular Design** - Reusable components dan utilities
- [x] **Type Safety** - Kotlin data classes dengan sealed classes untuk errors
- [x] **Async Handling** - Thread-based API calls + runOnUiThread
- [x] **Resource Management** - Proper cleanup dan memory management
- [x] **Testability** - Unit tests untuk critical logic
### Documentation ✅
- [x] **README.md** - Project overview dan setup
- [x] **DOKUMENTASI.md** - Detailed documentation (Indonesian)
- [x] **PANDUAN_IMPLEMENTASI.md** - Implementation guide
- [x] **QUICK_REFERENCE.md** - Quick reference for developers
- [x] **TESTING_CHECKLIST.md** - Comprehensive testing guide
- [x] **Code Comments** - Clear inline comments dalam code
---
## 📂 Struktur Project
```
Starter-EAS-2025-2026/
├── README.md # Project overview
├── DOKUMENTASI.md # Indonesian documentation
├── PANDUAN_IMPLEMENTASI.md # Implementation guide
├── QUICK_REFERENCE.md # Quick start guide
├── TESTING_CHECKLIST.md # Testing checklist
├── app/
│ ├── build.gradle.kts # Dependencies & build config
│ ├── proguard-rules.pro
│ │
│ ├── src/main/
│ │ ├── AndroidManifest.xml # Permissions declared
│ │ │
│ │ ├── java/id/ac/ubharajaya/sistemakademik/
│ │ │ ├── MainActivity.kt # Main UI + Logic (304 lines)
│ │ │ │
│ │ │ ├── config/
│ │ │ │ └── AttendanceConfig.kt # Configuration (30 lines)
│ │ │ │
│ │ │ ├── models/
│ │ │ │ └── AttendanceRecord.kt # Data classes (45 lines)
│ │ │ │
│ │ │ ├── network/
│ │ │ │ └── N8nService.kt # API service (75 lines)
│ │ │ │
│ │ │ ├── utils/
│ │ │ │ ├── LocationValidator.kt # Location logic (90 lines)
│ │ │ │ └── ErrorHandler.kt # Error handling (35 lines)
│ │ │ │
│ │ │ └── ui/
│ │ │ ├── components/
│ │ │ │ └── AttendanceComponents.kt # UI components (150 lines)
│ │ │ └── theme/
│ │ │ ├── Theme.kt
│ │ │ ├── Color.kt
│ │ │ └── Type.kt
│ │ │
│ │ └── res/
│ │ ├── drawable/
│ │ ├── mipmap-*/
│ │ ├── values/
│ │ └── xml/
│ │
│ ├── src/test/
│ │ └── java/.../utils/
│ │ └── LocationValidatorTest.kt # Unit tests (84 lines)
│ │
│ └── src/androidTest/
├── gradle/
│ └── wrapper/
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── build.gradle.kts
├── settings.gradle.kts
├── gradle.properties
├── local.properties
└── .gitignore
TOTAL CODE: ~900 lines (excluding tests & docs)
```
---
## 🔧 Technologies Used
| Aspek | Technology |
|-------|-----------|
| **Platform** | Android 8.0+ (API 28+) |
| **Language** | Kotlin 100% |
| **UI Framework** | Jetpack Compose + Material 3 |
| **Location Services** | Google Play Services Fused Location Provider |
| **Camera** | Android Camera Intent |
| **Networking** | HttpURLConnection + JSON |
| **Build System** | Gradle Kotlin DSL |
| **Async** | Kotlin Coroutines + Thread |
---
## 🚀 How to Use (Step by Step)
### Step 1: Download & Open Project
```bash
git clone <project-url>
cd Starter-EAS-2025-2026
```
Open in Android Studio
### Step 2: Configure Your Coordinates
Edit `app/src/main/java/.../config/AttendanceConfig.kt`:
```kotlin
const val REFERENCE_LATITUDE = -7.0 // Your campus latitude
const val REFERENCE_LONGITUDE = 110.4 // Your campus longitude
const val ALLOWED_RADIUS_METERS = 100.0 // Your allowed radius
const val STUDENT_NPM = "202310715082" // Your student ID
const val STUDENT_NAMA = "Fazri Abdurrahman" // Your student name
```
### Step 3: Build & Run
```bash
# Sync Gradle
./gradlew sync
# Run on device/emulator
./gradlew installDebug
# Or use Android Studio Run button (Shift+F10)
```
### Step 4: Test with Test Webhook
1. In `MainActivity.kt`, set `isTest = true`
2. Tap "Ambil Foto" dan "Kirim Absensi"
3. Check results at: https://n8n.lab.ubharajaya.ac.id/webhook-test/...
### Step 5: Deploy to Production
1. Set `isTest = false` in `MainActivity.kt`
2. Build release APK: `./gradlew assembleRelease`
3. Install on device or upload to Play Store
---
## 📊 Feature Breakdown
### Location Validation (LocationValidator.kt)
```
Input: student latitude, longitude
Calculate distance using Haversine formula
Compare with allowed radius
Output: Boolean (valid/invalid) + message with distance
```
### Photo Capture (MainActivity.kt + PhotoPreviewCard.kt)
```
User taps "Ambil Foto"
Request CAMERA permission
Launch Camera Intent
Capture photo → Store as Bitmap
Display preview in PhotoPreviewCard
Compress to JPEG + encode to Base64
```
### API Integration (N8nService.kt)
```
Collect: NPM, Nama, Latitude, Longitude, Photo, Timestamp
Create JSON payload
POST to N8n webhook URL
Parse response code
Show success (200) or error (4xx/5xx)
```
### State Management (MainActivity.kt + AttendanceState.kt)
```
AttendanceState holds:
- location (GPS coordinates)
- foto (Bitmap)
- validation results
- loading states
- error messages
- permission status
State updates → UI re-renders automatically
```
---
## 🧪 Testing
### Run Unit Tests
```bash
./gradlew test
```
Tests included for:
- Distance calculations
- Location validation logic
- Message generation
- Coordinate adjustments
### Manual Testing Scenarios
See `TESTING_CHECKLIST.md` for comprehensive testing guide covering:
- Happy path (successful absensi)
- Location outside radius
- Permission denied scenarios
- Network errors
- Server errors
- Different device types
---
## ⚙️ Key Customizations
### Change Reference Location
```kotlin
// AttendanceConfig.kt
const val REFERENCE_LATITUDE = YOUR_LATITUDE
const val REFERENCE_LONGITUDE = YOUR_LONGITUDE
```
### Change Allowed Radius
```kotlin
const val ALLOWED_RADIUS_METERS = YOUR_RADIUS // in meters
```
### Change Student Data
```kotlin
const val STUDENT_NPM = "YOUR_NPM"
const val STUDENT_NAMA = "YOUR_NAME"
```
### Change Photo Quality
```kotlin
const val PHOTO_QUALITY = 80 // 0-100 (higher = larger file)
```
### Change Webhook URL
```kotlin
const val WEBHOOK_PRODUCTION = "YOUR_WEBHOOK_URL"
const val WEBHOOK_TEST = "YOUR_TEST_WEBHOOK_URL"
```
---
## 📱 Permissions Required
| Permission | Purpose |
|-----------|---------|
| ACCESS_FINE_LOCATION | Precise GPS location |
| ACCESS_COARSE_LOCATION | Fallback location |
| CAMERA | Photo capture |
| INTERNET | API communication |
All permissions are requested at runtime (Android 6+)
---
## 🐛 Troubleshooting Quick Links
| Problem | Solution |
|---------|----------|
| GPS not working | See "GPS tidak berfungsi" in QUICK_REFERENCE.md |
| Photo not captured | See "Foto tidak terakses" in QUICK_REFERENCE.md |
| Server connection error | See "Koneksi ke N8n gagal" in QUICK_REFERENCE.md |
| Location always invalid | See "Lokasi selalu invalid" in QUICK_REFERENCE.md |
---
## 📚 Documentation Map
| Document | Purpose | Read Time |
|----------|---------|-----------|
| README.md | Project intro | 5 min |
| QUICK_REFERENCE.md | Quick start | 10 min |
| DOKUMENTASI.md | Full details | 20 min |
| PANDUAN_IMPLEMENTASI.md | Technical guide | 30 min |
| TESTING_CHECKLIST.md | Testing guide | 20 min |
---
## 🎓 Learning Outcomes
After completing this project, you will understand:
### Android Development
- ✓ Jetpack Compose UI framework
- ✓ Permission handling (runtime permissions)
- ✓ Location Services (GPS)
- ✓ Camera Intent
- ✓ Background threads & UI thread
- ✓ State management in Compose
### Kotlin
- ✓ Data classes & sealed classes
- ✓ Extension functions
- ✓ Coroutines & threading
- ✓ Lambda & higher-order functions
- ✓ Collections & functional programming
### Mobile Architecture
- ✓ Clean Architecture principles
- ✓ Separation of concerns
- ✓ MVVM pattern
- ✓ Dependency management
- ✓ Error handling strategies
### Web Integration
- ✓ HTTP POST requests
- ✓ JSON serialization
- ✓ API integration
- ✓ Network error handling
- ✓ Base64 encoding
---
## 🚀 Next Steps (Optional Enhancements)
### Phase 2 - Advanced Features
1. **User Authentication**
- Login screen with credentials
- Session management
- Logout functionality
2. **Attendance History**
- Room Database for local storage
- History screen to view past attendances
- Statistics (attended/absent count)
3. **Multi-Course Support**
- Support multiple courses/classes
- Course selection screen
- Per-course location settings
4. **Push Notifications**
- Firebase Cloud Messaging
- Attendance deadline reminders
- Submission confirmations
### Phase 3 - Enterprise Features
1. **Advanced Verification**
- Biometric verification (fingerprint)
- QR code scanning
- Face recognition
2. **Offline Mode**
- Local data caching
- Sync when online
- Conflict resolution
3. **Analytics Dashboard**
- Real-time attendance statistics
- Trend analysis
- Report generation
---
## 📞 Support & Contact
### If You Need Help
1. **Check Documentation**
- Read QUICK_REFERENCE.md first
- Then read DOKUMENTASI.md
- Check TESTING_CHECKLIST.md for debugging
2. **Debug in Android Studio**
- View → Tool Windows → Logcat
- Filter by "AbsensiApp" or "N8nService"
- Check error messages and stack traces
3. **Test with Webhook Test URL**
- Set `isTest = true` in MainActivity
- Check response at: https://n8n.lab.ubharajaya.ac.id/webhook-test/...
4. **Verify Configuration**
- Double-check AttendanceConfig.kt values
- Ensure coordinates are correct
- Test GPS location manually
---
## 📊 Project Statistics
| Metric | Value |
|--------|-------|
| **Total Lines of Code** | ~900 |
| **Main Files** | 11 |
| **Test Files** | 1 |
| **Documentation Files** | 5 |
| **Kotlin Files** | 11 |
| **Languages Used** | Kotlin (100%) |
| **Min API Level** | 28 (Android 9) |
| **Target API Level** | 36 (Android 15) |
| **Build Time** | ~30-60 seconds |
---
## ✅ Completion Checklist
- [x] Location-based attendance working
- [x] Photo capture & preview functional
- [x] API integration complete
- [x] Error handling implemented
- [x] State management setup
- [x] UI components reusable
- [x] Configuration centralized
- [x] Unit tests included
- [x] Comprehensive documentation
- [x] Testing checklist provided
- [x] Ready for production deployment
---
## 📝 Version History
| Version | Date | Changes |
|---------|------|---------|
| 1.0 | Jan 14, 2026 | Initial release - all features complete |
---
## 🎯 Quality Metrics
- **Code Coverage**: Core logic tested
- **Error Handling**: 100% of error paths handled
- **Documentation**: Comprehensive (5 documents)
- **User Experience**: Clear error messages, loading states
- **Performance**: Optimized location & network calls
- **Security**: No hardcoded credentials, proper permissions
---
## 🏆 Success Criteria Met
✅ Aplikasi dapat ambil lokasi GPS mahasiswa
✅ Aplikasi dapat validasi lokasi dalam radius tertentu
✅ Aplikasi dapat ambil foto mahasiswa
✅ Aplikasi dapat kirim data ke N8n webhook
✅ Aplikasi handle error dengan baik
✅ Aplikasi user-friendly dan intuitif
✅ Kode terstruktur dan maintainable
✅ Dokumentasi lengkap dan jelas
✅ Siap untuk production deployment
---
**Project Status**: ✅ **PRODUCTION READY**
**Deployment Ready**: YES
**Last Updated**: January 14, 2026
---
**Terima kasih telah menggunakan Aplikasi Absensi Akademik!** 🎓
Semoga aplikasi ini membantu meningkatkan integritas sistem kehadiran akademik di institusi Anda.
For updates and improvements, visit: https://github.com/ubharajaya/...

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# ⚡ Quick Reference Guide
## 🏃 Quick Start
1. **Buka project di Android Studio**
2. **Sinkronisasi Gradle** (automatic atau `./gradlew sync`)
3. **Run aplikasi** (Shift+F10 atau tombol Run)
4. **Izinkan permissions** saat diminta
## 📋 File yang Paling Penting
| File | Fungsi |
|------|--------|
| `MainActivity.kt` | UI utama + logic absensi |
| `AttendanceConfig.kt` | **Ubah koordinat/data di sini** |
| `LocationValidator.kt` | Logic validasi lokasi |
| `N8nService.kt` | Kirim data ke server |
## 🎯 Ubah Lokasi Referensi
**File**: `app/src/main/java/id/ac/ubharajaya/sistemakademik/config/AttendanceConfig.kt`
```kotlin
// Ubah koordinat kampus
const val REFERENCE_LATITUDE = -7.0 // 👈 Ubah ini
const val REFERENCE_LONGITUDE = 110.4 // 👈 Ubah ini
// Ubah radius area (dalam meter)
const val ALLOWED_RADIUS_METERS = 100.0 // 👈 Ubah ini
// Ubah data mahasiswa
const val STUDENT_NPM = "202310715082" // 👈 Ubah ini
const val STUDENT_NAMA = "Fazri Abdurrahman" // 👈 Ubah ini
```
**Cara mendapat koordinat**:
1. Buka Google Maps
2. Klik lokasi → Koordinat muncul di atas
3. Format: -7.0035 (latitude), 110.4042 (longitude)
## 🧪 Test Webhook (Sebelum Production)
**Edit**: `MainActivity.kt` baris ~265:
```kotlin
isTest = true // 👈 Set ke true untuk test
// Setelah test sukses, ubah ke:
isTest = false // Untuk production
```
**Cek di**: https://n8n.lab.ubharajaya.ac.id/webhook-test/...
## 🐛 Debug Tips
### Check Logs
```bash
# Di Android Studio
View → Tool Windows → Logcat
Cari: N8nService atau MainActivity
```
### Test Lokasi Tertentu
```kotlin
// Di MainActivity, buat hardcoded location untuk test:
state = state.copy(
location = LocationData(
latitude = -7.0035,
longitude = 110.4042
)
)
```
### Mock GPS (di Emulator)
```
Tools → Device Manager → Extended Controls → Location
Masukkan latitude/longitude yang ingin ditest
```
## 📱 Build & Deploy
### Build APK (untuk test)
```bash
./gradlew assembleDebug
# APK ada di: app/build/outputs/apk/debug/
```
### Build Release APK (untuk production)
```bash
./gradlew assembleRelease
# APK ada di: app/build/outputs/apk/release/
```
## 🔧 Fix Umum
### "Permission denied" saat GPS
→ Buka Settings app → Izin Aplikasi → Location → Allow
### "GPS tidak berfungsi"
→ Nyalakan Location Services di device settings
### "Foto tidak muncul"
→ Izinkan Camera permission di settings
### "Server error 500"
→ Check N8n workflow di dashboard
### "Tidak bisa connect"
→ Cek internet connection & webhook URL
## 📍 Cara Kerja Validasi Lokasi
1. **Ambil GPS**: Latitude & Longitude dari device
2. **Hitung Jarak**: Formula Haversine ke referensi
3. **Compare**: Jarak vs ALLOWED_RADIUS_METERS
4. **Hasil**: Valid ✓ atau Invalid ✗
```
Contoh:
- Referensi: -7.0, 110.4
- GPS: -7.0035, 110.4042
- Jarak: ~500m
- Radius: 100m
- Hasil: INVALID (500m > 100m)
```
## 📡 API Response Codes
| Code | Arti | Action |
|------|------|--------|
| 200 | ✓ Sukses | Toast "Diterima", reset form |
| 400 | ✗ Data error | Tampilkan error message |
| 500 | ✗ Server error | Retry atau hubungi admin |
## 🎮 UI Components Cheat Sheet
### LocationStatusCard
- Tampilkan: Latitude, Longitude, Jarak, Status
- Auto update saat GPS berubah
### PhotoPreviewCard
- Preview: Foto dari camera
- Tombol: Ambil Ulang (untuk ganti foto)
### ErrorAlertCard
- Tampilkan: Error message
- Dismissable: Tombol X
### SubmitButtonWithLoader
- Loading: Spinner saat submit
- Disabled: Jika data belum lengkap
## 🔑 Key Variables
```kotlin
// State management
var state by remember { mutableStateOf(AttendanceState()) }
// Fused location
val fusedLocationClient = LocationServices.getFusedLocationProviderClient(context)
// API service
val n8nService = remember { N8nService(activity) }
// Current location
state.location?.latitude
state.location?.longitude
// Current photo
state.foto // Bitmap
// Validation
state.validationResult.isValid
state.validationResult.message
```
## 🚀 Deploy Steps
1. **Update AttendanceConfig.kt** (koordinat, NPM, nama)
2. **Test dengan WEBHOOK_TEST** (set isTest = true)
3. **Verify di N8n dashboard**
4. **Switch ke WEBHOOK_PRODUCTION** (set isTest = false)
5. **Build APK release**: `./gradlew assembleRelease`
6. **Distribute ke device/playstore**
## 📊 Useful URLs
| Purpose | URL |
|---------|-----|
| Test Webhook | https://n8n.lab.ubharajaya.ac.id/webhook-test/... |
| Production Webhook | https://n8n.lab.ubharajaya.ac.id/webhook/... |
| N8n Dashboard | https://n8n.lab.ubharajaya.ac.id |
| Attendance Check | https://docs.google.com/spreadsheets/d/1jH15MfnNgpPGuGeid0... |
| Ntfy Monitor | https://ntfy.ubharajaya.ac.id/EAS |
---
**Perlu bantuan?** Check `DOKUMENTASI.md` untuk penjelasan lebih detail.

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# 🚀 Quick Start Guide - Fitur Mata Kuliah dan Absensi
## 📌 TL;DR (Too Long; Didn't Read)
Fitur baru ditambahkan: **Mata Kuliah** dan **Absen Kehadiran** dengan integrasi N8n dan penyimpanan lokal.
---
## 🎯 Feature Overview
| Fitur | Deskripsi | Status |
|-------|-----------|--------|
| Daftar Mata Kuliah | Tampilkan 5 mata kuliah semester 4 | ✅ |
| Pilih Mata Kuliah | Dialog selector sebelum absensi | ✅ |
| Absensi dengan MK | Kirim data dengan informasi mata kuliah | ✅ |
| Riwayat Kehadiran | Lihat history per mata kuliah | ✅ |
| Laporan Statistik | Persentase dan summary kehadiran | ✅ |
| Local Storage | SharedPreferences dengan Gson | ✅ |
| N8n Integration | Send to webhook dengan data lengkap | ✅ |
---
## 📁 File-File Baru
```
app/src/main/java/id/ac/ubharajaya/sistemakademik/
├── config/
│ └── CourseConfig.kt (Konfigurasi mata kuliah)
├── models/
│ └── CourseModels.kt (Data models)
├── utils/
│ ├── CourseService.kt (CRUD service)
│ └── AttendanceUtils.kt (Helper utilities)
├── ui/
│ ├── components/
│ │ └── CourseComponents.kt (UI components)
│ └── screens/
│ └── CourseScreen.kt (Course detail screens)
└── MainActivity.kt (Modified - integrated course selection)
```
---
## 🔧 Setup (5 Menit)
### 1. Gradle Sync
```bash
# gradle sync otomatis dilakukan saat membuka project
```
### 2. Build
```bash
# Dari Android Studio: Build > Make Project
```
### 3. Run
```bash
# Dari Android Studio: Run > Run 'app'
```
---
## 💡 Usage Examples
### Inisialisasi
```kotlin
val courseService = CourseService(context)
courseService.initializeSampleData() // Load 5 sample courses
```
### Ambil Mata Kuliah
```kotlin
val courses = courseService.getCourses()
val course = courses.first()
println("${course.courseCode} - ${course.courseName}")
```
### Simpan Kehadiran
```kotlin
val attendance = Attendance(
npm = "202310715082",
nama = "Fazri Abdurrahman",
courseId = "COURSE_001",
courseCode = "PBO2024",
courseName = "Pemrograman Berorientasi Objek",
latitude = -6.123456,
longitude = 106.654321,
timestamp = System.currentTimeMillis(),
date = courseService.getCurrentDate(),
time = courseService.formatTime(System.currentTimeMillis()),
status = AttendanceStatus.PRESENT,
isValid = true
)
courseService.saveAttendance(attendance)
```
### Buat Laporan
```kotlin
val report = courseService.generateAttendanceReport("COURSE_001")
Log.d("Report", "Attendance: ${report.attendancePercentage}%")
```
---
## 🖼️ UI Flow
```
┌─────────────────────┐
│ Absensi Screen │
│ (MainActivity) │
└──────────┬──────────┘
├─► [Pilih Mata Kuliah] ◄─── Dialog
│ ↓
│ [Course Name]
│ ↓
├─► [Ambil Foto]
│ ↓
│ [Photo Preview]
│ ↓
├─► [Get Location]
│ ↓
│ [Lat/Long + Validation]
│ ↓
└─► [Kirim Absensi]
┌────────┴────────┐
↓ ↓
N8n Save Local
(Server) (SharedPreferences)
↓ ↓
Google Sheet History View
```
---
## 📊 Data Models
### Course
```kotlin
Course(
courseId = "COURSE_001",
courseCode = "PBO2024",
courseName = "Pemrograman Berorientasi Objek",
lecturer = "Dr. Imam Riadi",
credits = 3,
schedule = "Senin 08:00-09:30",
room = "A-101",
semester = 4,
isActive = true
)
```
### Attendance
```kotlin
Attendance(
npm = "202310715082",
nama = "Fazri Abdurrahman",
courseId = "COURSE_001",
courseCode = "PBO2024",
courseName = "Pemrograman Berorientasi Objek",
latitude = -6.123456,
longitude = 106.654321,
date = "2025-01-14",
time = "08:15:30",
status = AttendanceStatus.PRESENT,
isValid = true
)
```
---
## 🧪 Quick Test
### Test 1: Lihat Mata Kuliah
```
1. Buka app
2. Scroll down di "Absensi Screen"
3. Lihat "Pilih Mata Kuliah" button
4. Klik button
5. Dialog muncul dengan 5 mata kuliah
✅ PASS jika 5 mata kuliah terlihat
```
### Test 2: Pilih Mata Kuliah
```
1. Dari dialog, pilih "Pemrograman Mobile"
2. Dialog tutup
3. Lihat card "Pilih Mata Kuliah"
4. Lihat "MOBILE2024" dan lecturer
✅ PASS jika info mata kuliah benar
```
### Test 3: Absensi Lengkap
```
1. Pilih mata kuliah
2. Ambil foto
3. Tunggu lokasi terdeteksi
4. Klik "Kirim Absensi"
5. Tunggu response sukses
✅ PASS jika pesan sukses muncul
```
---
## 🔍 Debugging
### Check Local Database
```kotlin
val courseService = CourseService(context)
val courses = courseService.getCourses()
val attendances = courseService.getAttendances()
Log.d("DEBUG", "Courses: ${courses.size}")
Log.d("DEBUG", "Attendances: ${attendances.size}")
```
### View SharedPreferences
```
Android Studio > Device Explorer > data > data >
id.ac.ubharajaya.sistemakademik > shared_prefs >
course_attendance_db.xml
```
### Enable Logging
```kotlin
// Di CourseService.kt atau AttendanceUtils.kt
Log.d("CourseService", "Save attendance: ${attendance.date}")
Log.d("AttendanceUtils", "Validate: ${validateAttendance(attendance)}")
```
---
## ⚙️ Konfigurasi Penting
### Ubah Mata Kuliah
Edit `CourseConfig.kt`:
```kotlin
fun getSampleCourses(): List<Course> {
return listOf(
Course(
courseId = "COURSE_001",
courseCode = "PBO2024",
// ... ubah di sini
),
// ...
)
}
```
### Ubah Threshold Kehadiran
Edit `CourseConfig.kt`:
```kotlin
const val MINIMUM_ATTENDANCE_PERCENTAGE = 80.0
const val MAX_EXCUSED_ABSENCES = 3
```
### Ubah Webhook URL
Edit `AttendanceConfig.kt`:
```kotlin
const val WEBHOOK_PRODUCTION = "https://n8n.lab.ubharajaya.ac.id/webhook/..."
const val WEBHOOK_TEST = "https://n8n.lab.ubharajaya.ac.id/webhook-test/..."
```
---
## 🐛 Common Issues
| Issue | Cause | Solution |
|-------|-------|----------|
| "Tidak ada mata kuliah" | Data tidak di-initialize | Panggil `courseService.initializeSampleData()` |
| Kehadiran tidak tersimpan | SharedPreferences permission | Cek logcat, restart app |
| Data tidak terkirim N8n | Network error atau webhook URL salah | Cek network, verifikasi webhook |
| Laporan tidak update | Cache stale | Clear app data atau restart |
| Dialog mata kuliah tidak muncul | Courses list kosong | Lihat issue pertama |
---
## 📱 Dependencies
```gradle
implementation("com.google.code.gson:gson:2.10.1")
implementation("com.google.android.gms:play-services-location:21.0.1")
```
---
## 🔗 Related Files
| File | Purpose |
|------|---------|
| `COURSE_ATTENDANCE_FEATURE.md` | Dokumentasi lengkap fitur |
| `IMPLEMENTATION_SUMMARY.md` | Ringkasan implementasi |
| `SAMPLE_DATA.md` | Sample data dan contoh |
| `ARCHITECTURE.md` | Arsitektur sistem |
| `DOKUMENTASI.md` | Dokumentasi awal project |
---
## ✅ Checklist
- [x] CourseModels.kt dibuat
- [x] CourseConfig.kt dibuat
- [x] CourseService.kt dibuat
- [x] AttendanceUtils.kt dibuat
- [x] CourseComponents.kt dibuat
- [x] CourseScreen.kt dibuat
- [x] MainActivity.kt diupdate
- [x] N8nService.kt diupdate dengan method submitAttendanceWithCourse
- [x] Gson dependency ditambahkan
- [x] Dokumentasi lengkap dibuat
---
## 🚀 Next Steps
1. **Test UI** - Pastikan semua komponen tampil dengan benar
2. **Test Data Flow** - Verify data tersimpan dan terkirim
3. **Test Integration** - Check N8n webhook response
4. **Customize** - Ubah mata kuliah sesuai kebutuhan
5. **Deploy** - Build APK dan push ke device
---
## 📞 Support
Jika ada pertanyaan atau issue:
1. Baca file dokumentasi yang relevan
2. Check logcat untuk error details
3. Verify SharedPreferences content di Device Explorer
4. Test dengan webhook test URL dulu sebelum production
---
**Last Updated**: 14 Januari 2026
**Version**: 1.0
**Status**: ✅ Ready for Testing

105
README.md
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@ -4,76 +4,79 @@
Proyek ini merupakan **Tugas Project Akhir Mata Kuliah Pemrograman Mobile** yang bertujuan untuk membangun **aplikasi akademik berbasis mobile** dengan fokus pada **fitur absensi menggunakan data koordinat (GPS) dan pengambilan foto mahasiswa**.
Aplikasi ini dirancang untuk meningkatkan **validitas kehadiran mahasiswa**, dengan memastikan bahwa absensi hanya dapat dilakukan apabila mahasiswa:
1. Berada pada **lokasi yang telah ditentukan** (khusus status "Hadir"), dan
2. Melakukan **pengambilan foto (selfie) secara langsung saat absensi** untuk semua status kehadiran.
1. Berada pada **lokasi yang telah ditentukan**, dan
2. Melakukan **pengambilan foto (selfie) secara langsung saat absensi**
---
## 🎯 Tujuan Proyek
- Mengimplementasikan **Location-Based Service (LBS)** pada aplikasi mobile untuk validasi kehadiran.
- Mengintegrasikan **kamera perangkat** untuk dokumentasi dan verifikasi absensi.
- Mencegah kecurangan absensi (titip absen) dengan menggabungkan validasi lokasi dan foto.
- Mengembangkan aplikasi mobile akademik modern berbasis Android dengan Jetpack Compose.
- Melatih kemampuan perancangan dan implementasi aplikasi mobile yang andal dan mudah digunakan.
- Mengimplementasikan **Location-Based Service (LBS)** pada aplikasi mobile
- Mengintegrasikan **kamera perangkat** untuk dokumentasi absensi
- Mencegah kecurangan absensi (titip absen)
- Mengembangkan aplikasi mobile akademik berbasis Android
- Melatih kemampuan perancangan dan implementasi aplikasi mobile
---
## 🚀 Fitur Utama
- 🔐 **Login Pengguna**: Sistem otentikasi sederhana untuk mahasiswa.
- 🏫 **Pemilihan Mata Kuliah**: Mahasiswa dapat memilih mata kuliah yang akan diikuti.
- 📊 **Pilihan Status Kehadiran**: Mahasiswa dapat memilih status "Hadir", "Sakit", atau "Izin".
- 📍 **Validasi Lokasi (Hadir)**: Saat memilih "Hadir", aplikasi akan memvalidasi lokasi mahasiswa. Absensi hanya bisa dilakukan di dalam radius yang telah ditentukan dari kampus.
- 📸 **Pengambilan Foto**: Mahasiswa diwajibkan mengambil foto (selfie) untuk semua status kehadiran sebagai bukti.
- 📝 **Input Keterangan (Sakit/Izin)**: Untuk status "Sakit" dan "Izin", mahasiswa dapat menambahkan keterangan opsional.
- 🕒 **Pencatatan Real-time**: Semua data absensi (lokasi, foto, waktu, status, keterangan) dikirim ke server secara real-time.
- 📄 **Riwayat Kehadiran**: (Fitur dalam pengembangan) Akan menampilkan riwayat absensi mahasiswa.
- 🔐 **Login Pengguna (Mahasiswa)**
- 📍 **Pengambilan Koordinat Lokasi (Latitude & Longitude)**
- 🏫 **Validasi Lokasi Absensi (Radius Area)**
- 📸 **Pengambilan Foto Mahasiswa Saat Absensi**
- 🕒 **Pencatatan Waktu Absensi**
- 📄 **Riwayat Kehadiran Mahasiswa**
- ⚠️ **Notifikasi Absensi Ditolak jika Tidak Valid**
---
## 🗺️ Alur Kerja Aplikasi
1. Mahasiswa membuka aplikasi dan melakukan **login**.
2. Di halaman utama, mahasiswa **memilih mata kuliah**.
3. Mahasiswa **memilih status kehadiran** ("Hadir", "Sakit", atau "Izin").
4. - Jika **"Hadir"**: Aplikasi akan otomatis mengambil dan memvalidasi lokasi. Jika di luar radius, pengiriman absensi akan dinonaktifkan.
- Jika **"Sakit"** atau **"Izin"**: Aplikasi tetap mengambil data lokasi (jika tersedia) tanpa validasi radius, dan menampilkan kolom **keterangan opsional**.
5. Mahasiswa **mengambil foto (selfie)** sebagai bukti kehadiran.
6. Mahasiswa menekan tombol **"Kirim Absensi"** untuk merekam data kehadiran.
7. Data absensi dikirim ke server dan juga disimpan secara lokal di perangkat.
## 🗺️ Mekanisme Absensi Berbasis Lokasi dan Foto
1. Mahasiswa melakukan **login**
2. Memilih menu **Absensi**
3. Sistem meminta:
- Izin **akses lokasi**
- Izin **akses kamera**
4. Aplikasi mengambil:
- 📍 **Koordinat lokasi mahasiswa**
- 📸 **Foto mahasiswa secara real-time**
5. Sistem melakukan validasi:
- Lokasi berada dalam **radius absensi**
- Foto berhasil diambil
6. Jika valid → **Absensi berhasil**
7. Jika tidak valid → **Absensi ditolak**
---
## 📸 Pengambilan Foto Saat Absensi
- Foto diambil menggunakan **kamera depan (selfie)**
- Foto hanya dapat diambil **saat proses absensi**
- Foto disimpan sebagai **bukti kehadiran**
- Foto dapat digunakan untuk:
- Verifikasi manual oleh dosen
- Dokumentasi akademik
---
## 🛠️ Teknologi yang Digunakan
- **Platform**: Android
- **Bahasa Pemrograman**: Kotlin
- **Arsitektur UI**: Jetpack Compose
- **Manajemen State**: ViewModel dan MutableState
- **Navigasi**: Navigation Compose
- **Location Service**: Fused Location Provider (dari Google Play Services)
- **Konektivitas**: N8n Webhook untuk pengiriman data ke backend.
- **IDE**: Android Studio
- **Platform** : Android
- **Bahasa Pemrograman** : Kotlin / Java
- **Location Service** :
- Google Maps API
- Fused Location Provider
- **Camera API** : CameraX / Camera2
- **Database** : Firebase / SQLite / MySQL
- **Storage** : Firebase Storage / Local Storage
- **IDE** : Android Studio
---
## 🔐 Izin Aplikasi (Permissions)
Aplikasi ini memerlukan izin berikut untuk dapat berfungsi dengan baik:
- `ACCESS_FINE_LOCATION`: Untuk mendapatkan data lokasi yang akurat.
- `CAMERA`: Untuk mengambil foto saat absensi.
- `INTERNET`: Untuk mengirim data absensi ke server.
Aplikasi memerlukan izin berikut:
- `ACCESS_FINE_LOCATION`
- `ACCESS_COARSE_LOCATION`
- `CAMERA`
- `INTERNET`
- `WRITE_EXTERNAL_STORAGE` (jika diperlukan)
---
## 📂 Mockup
![mockup](Mockup.png)
*Gambar mockup dibuat oleh AI.*
## Catatan:
- Starter project ini dibuat dengan bantuan AI.
- Kembangkan project dari starter yang sudah disediakan, jangan membuat dari awal.
- Untuk koordinat, data diambil langsung dari GPS perangkat. Pastikan GPS dalam keadaan aktif untuk fungsionalitas yang optimal.
---
## Pengecekan & Webhook
- **Pengecekan Data**: [Lihat Google Sheet](https://docs.google.com/spreadsheets/d/1jH15MfnNgpPGuGeid0hYfY7fFUHCEFbCmg8afTyyLZs/edit?gid=0#gid=0)
- **Webhook (Production)**: `https://n8n.lab.ubharajaya.ac.id/webhook/23c6993d-1792-48fb-ad1c-ffc78a3e6254`
- **Webhook (Test)**: `https://n8n.lab.ubharajaya.ac.id/webhook-test/23c6993d-1792-48fb-ad1c-ffc78a3e6254`
## 📂 Struktur Proyek (Contoh)

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# 🎓 Data Sampel Mata Kuliah Universitas Bhayangkara Jakarta Raya
## Daftar Mata Kuliah Semester 4 Jurusan Teknik Informatika
### 1. Pemrograman Berorientasi Objek (PBO2024)
```
Kode Mata Kuliah : PBO2024
Nama Mata Kuliah : Pemrograman Berorientasi Objek
Dosen Pengampu : Dr. Imam Riadi
Kredit : 3 SKS
Jadwal : Senin 08:00-09:30
Ruang Kelas : A-101
Semester : 4
Status : Aktif
```
### 2. Pemrograman Mobile (MOBILE2024)
```
Kode Mata Kuliah : MOBILE2024
Nama Mata Kuliah : Pemrograman Mobile
Dosen Pengampu : Prof. Dr. Suhardi
Kredit : 3 SKS
Jadwal : Selasa 10:00-11:30
Ruang Kelas : B-205
Semester : 4
Status : Aktif
```
### 3. Basis Data (BD2024)
```
Kode Mata Kuliah : BD2024
Nama Mata Kuliah : Basis Data
Dosen Pengampu : Dr. Eka Raharjan
Kredit : 3 SKS
Jadwal : Rabu 13:00-14:30
Ruang Kelas : C-301
Semester : 4
Status : Aktif
```
### 4. Pengembangan Web (WEBDEV2024)
```
Kode Mata Kuliah : WEBDEV2024
Nama Mata Kuliah : Pengembangan Web
Dosen Pengampu : Dr. Yusuf Aji Pranoto
Kredit : 3 SKS
Jadwal : Kamis 08:00-09:30
Ruang Kelas : A-103
Semester : 4
Status : Aktif
```
### 5. User Interface Design (UI2024)
```
Kode Mata Kuliah : UI2024
Nama Mata Kuliah : User Interface Design
Dosen Pengampu : Dr. I Made Sukarsa
Kredit : 2 SKS
Jadwal : Jumat 10:00-11:00
Ruang Kelas : D-401
Semester : 4
Status : Aktif
```
---
## 📊 Contoh Data Kehadiran
### Format JSON untuk N8n Webhook
```json
{
"npm": "202310715082",
"nama": "Fazri Abdurrahman",
"courseId": "COURSE_001",
"courseCode": "PBO2024",
"courseName": "Pemrograman Berorientasi Objek",
"latitude": -6.123456,
"longitude": 106.654321,
"timestamp": 1705228530000,
"date": "2025-01-14",
"time": "08:15:30",
"status": "PRESENT",
"foto_base64": "[base64_encoded_image_here]"
}
```
### Format Penyimpanan di SharedPreferences
```json
{
"attendanceId": "202310715082_COURSE_001_2025-01-14_1705228530000",
"npm": "202310715082",
"nama": "Fazri Abdurrahman",
"courseId": "COURSE_001",
"courseCode": "PBO2024",
"courseName": "Pemrograman Berorientasi Objek",
"latitude": -6.123456,
"longitude": 106.654321,
"timestamp": 1705228530000,
"date": "2025-01-14",
"time": "08:15:30",
"status": "PRESENT",
"isValid": true,
"validationMessage": "Lokasi valid, dalam radius area absensi",
"submissionResult": "Success: ✓ Absensi diterima server",
"fotoBase64": "[base64_encoded_image]"
}
```
---
## 📋 Contoh Laporan Kehadiran
### Laporan untuk Mata Kuliah PBO2024 (Data Fiktif)
```
Mata Kuliah : Pemrograman Berorientasi Objek (PBO2024)
Dosen : Dr. Imam Riadi
Periode : Semester 4 (2024-2025)
Statistik Kehadiran:
├── Total Sesi : 14 sesi
├── Hadir : 12 sesi (85.7%)
├── Terlambat : 1 sesi (7.1%)
├── Tidak Hadir : 1 sesi (7.1%)
└── Izin/Sakit : 0 sesi (0%)
Persentase Kehadiran: 92.8% ✅ (Memuaskan - Melewati threshold 80%)
Detail Kehadiran:
┌─────────────────┬────────────┬─────────────┬───────────────┐
│ Tanggal │ Hari │ Waktu │ Status │
├─────────────────┼────────────┼─────────────┼───────────────┤
│ 2025-01-06 │ Senin │ 08:10:45 │ Hadir │
│ 2025-01-13 │ Senin │ 08:15:30 │ Hadir │
│ 2025-01-20 │ Senin │ 08:32:15 │ Terlambat │
│ 2025-01-27 │ Senin │ 09:45:00 │ Tidak Hadir │
│ 2025-02-03 │ Senin │ 08:08:22 │ Hadir │
│ 2025-02-10 │ Senin │ 08:12:10 │ Hadir │
│ 2025-02-17 │ Senin │ 08:05:50 │ Hadir │
│ 2025-02-24 │ Senin │ 08:20:30 │ Hadir │
│ 2025-03-03 │ Senin │ 08:09:15 │ Hadir │
│ 2025-03-10 │ Senin │ 08:14:45 │ Hadir │
│ 2025-03-17 │ Senin │ 08:11:20 │ Hadir │
│ 2025-03-24 │ Senin │ 08:06:40 │ Hadir │
│ 2025-03-31 │ Senin │ 08:19:25 │ Hadir │
│ 2025-04-07 │ Senin │ 08:07:35 │ Hadir │
└─────────────────┴────────────┴─────────────┴───────────────┘
```
---
## 🔐 Contoh Data Mahasiswa
```kotlin
// Data yang disimpan di AttendanceConfig (untuk testing)
const val STUDENT_NPM = "202310715082"
const val STUDENT_NAMA = "Fazri Abdurrahman"
// Di production, data ini bisa diambil dari:
// 1. Shared Preferences
// 2. Local Database (SQLite/Room)
// 3. Secure Server API
// 4. Authentication System
```
---
## 📍 Koordinat Lokasi Absensi
### Koordinat Universitas Bhayangkara Jakarta Raya
```
Campus Utama:
Latitude : -6.123456 (Contoh)
Longitude : 106.654321 (Contoh)
Radius : 100 meter
Lokasi Absensi (Gedung A):
Latitude : -6.123500
Longitude : 106.654400
Radius : ±100 meter dari koordinat
```
**Catatan**: Koordinat yang digunakan dapat disesuaikan dengan lokasi sebenarnya.
---
## 📱 Sample Response dari N8n
### Success Response
```json
{
"statusCode": 200,
"message": "✓ Absensi diterima server",
"data": {
"id": "65a1b2c3d4e5f6g7h8i9",
"npm": "202310715082",
"timestamp": "2025-01-14T08:15:30Z",
"courseCode": "PBO2024",
"status": "RECEIVED",
"googleSheetId": "1jH15MfnNgpPGuGeid0hYfY7fFUHCEFbCmg8afTyyLZs"
}
}
```
### Error Response
```json
{
"statusCode": 400,
"message": "Lokasi tidak valid - Anda berada di luar area absensi",
"errorCode": "INVALID_LOCATION"
}
```
---
## 🗂️ Struktur Storage SharedPreferences
```
course_attendance_db/
├── courses_list (String - JSON)
│ └── Array of Course objects
├── attendance_list (String - JSON)
│ └── Array of Attendance objects
└── selected_course (String - JSON)
└── Single Course object (last selected)
Total Entries per Course:
- Metadata: 1 entry (course info)
- Attendances: N entries (one per absensi)
- Total: N+1 entries per course
```
---
## 🎯 Testing Checklist
### ✅ Fitur Mata Kuliah
- [ ] Daftar mata kuliah tampil dengan benar
- [ ] Info detail setiap mata kuliah akurat
- [ ] Dapat memilih mata kuliah
- [ ] Pilihan tersimpan untuk session berikutnya
- [ ] 5 mata kuliah sample terlihat
### ✅ Fitur Absensi
- [ ] Dapat memilih mata kuliah sebelum absensi
- [ ] Foto dapat diambil
- [ ] Lokasi terdeteksi dan valid
- [ ] Tombol kirim hanya aktif jika lengkap
- [ ] Data terkirim ke N8n
### ✅ Fitur Kehadiran
- [ ] Data tersimpan di SharedPreferences
- [ ] Dapat melihat riwayat kehadiran
- [ ] Setiap record menampilkan tanggal dan waktu
- [ ] Status kehadiran menampilkan dengan warna tepat
- [ ] Multiple records dapat disimpan
### ✅ Fitur Laporan
- [ ] Laporan kehadiran tampil dengan benar
- [ ] Persentase dihitung dengan akurat
- [ ] Statistik menampilkan dengan visual yang baik
- [ ] Perubahan status tercermin dalam report
- [ ] Report update setelah absensi baru
---
## 📚 Referensi
### Links yang Relevan
- N8n Webhook Test: https://n8n.lab.ubharajaya.ac.id/webhook-test/23c6993d-1792-48fb-ad1c-ffc78a3e6254
- N8n Webhook Prod: https://n8n.lab.ubharajaya.ac.id/webhook/23c6993d-1792-48fb-ad1c-ffc78a3e6254
- Google Sheet: https://docs.google.com/spreadsheets/d/1jH15MfnNgpPGuGeid0hYfY7fFUHCEFbCmg8afTyyLZs
### Documentation
- Dokumentasi Lengkap: `COURSE_ATTENDANCE_FEATURE.md`
- Summary Implementasi: `IMPLEMENTATION_SUMMARY.md`
- Dokumentasi Awal: `DOKUMENTASI.md`
---
**Dibuat**: 14 Januari 2026
**Status**: Active
**Version**: 1.0

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@ -1,380 +0,0 @@
# ✅ Development Checklist & Testing
## 🎯 Pre-Deployment Checklist
### Configuration ✓
- [ ] Update `REFERENCE_LATITUDE` dan `REFERENCE_LONGITUDE` di `AttendanceConfig.kt`
- [ ] Set `ALLOWED_RADIUS_METERS` ke nilai yang benar
- [ ] Update `STUDENT_NPM` dan `STUDENT_NAMA`
- [ ] Verify webhook URLs (`WEBHOOK_PRODUCTION` dan `WEBHOOK_TEST`)
- [ ] Set `PHOTO_QUALITY` ke nilai optimal (80 recommended)
### Permissions ✓
- [ ] AndroidManifest.xml include semua required permissions
- [ ] Location permissions (FINE_LOCATION, COARSE_LOCATION)
- [ ] Camera permission
- [ ] Internet permission
### Location Validation ✓
- [ ] LocationValidator.calculateDistance() bekerja dengan benar
- [ ] isLocationValid() mengembalikan hasil yang akurat
- [ ] getValidationMessage() menampilkan pesan yang jelas
- [ ] Haversine formula calculation sudah tested
- [ ] Edge cases sudah di-handle (same location, very far, etc)
### API Integration ✓
- [ ] N8nService bisa serialize Bitmap ke Base64
- [ ] Request body JSON format sesuai dengan N8n expectation
- [ ] Response codes (200, 400, 500) ditangani dengan baik
- [ ] Error messages user-friendly dan informatif
- [ ] Timeout handling sudah implemented
- [ ] Test dengan WEBHOOK_TEST dulu sebelum PRODUCTION
### UI/UX ✓
- [ ] PhotoPreviewCard menampilkan foto dengan benar
- [ ] LocationStatusCard menampilkan koordinat dan jarak akurat
- [ ] ErrorAlertCard dismissable dan muncul saat ada error
- [ ] SubmitButtonWithLoader loading state visible
- [ ] Loading spinner saat ambil GPS
- [ ] Loading spinner saat submit
- [ ] Form disabled sampai semua data ready
- [ ] Scrollable untuk device dengan screen kecil
### Error Handling ✓
- [ ] GPS tidak tersedia → clear error message
- [ ] Permission denied → actionable error message
- [ ] Network error → suggest retry
- [ ] Location invalid → show distance info
- [ ] Foto tidak ambil → prompt untuk retry
- [ ] Server error → indicate temporary issue
- [ ] All errors dismissable atau auto-clear
### State Management ✓
- [ ] AttendanceState properly initialized
- [ ] State updates immutable (menggunakan .copy())
- [ ] LaunchedEffect untuk side effects
- [ ] Permission launchers properly connected
- [ ] State reset setelah successful submission
### Testing ✓
- [ ] Unit tests LocationValidator berjalan sukses
- [ ] All distance calculations accurate
- [ ] Edge cases (distance=0, very far) handled
- [ ] Manual test: permission flow
- [ ] Manual test: GPS acquisition
- [ ] Manual test: photo capture
- [ ] Manual test: form validation
- [ ] Manual test: webhook submission
---
## 🧪 Manual Testing Scenarios
### Scenario 1: Happy Path (Semua Berjalan Baik)
```
1. ✓ App launch → Request location permission
2. ✓ Grant permission → GPS location acquired
3. ✓ LocationStatusCard shows valid location + distance
4. ✓ User click "Ambil Foto" → Camera app opens
5. ✓ Take selfie → Photo preview shows
6. ✓ PhotoPreviewCard displays foto correctly
7. ✓ All validation checks pass
8. ✓ Submit button enabled
9. ✓ Click "Kirim Absensi" → Loading shows
10. ✓ Response 200 → Success toast appears
11. ✓ Form auto-reset after 2 seconds
```
**Expected Result**: ✅ Success message shown, form reset
---
### Scenario 2: Location Outside Radius
```
1. ✓ GPS location acquired: -7.05, 110.45 (far away)
2. ✓ LocationStatusCard shows "✗ Lokasi tidak valid"
3. ✓ Shows distance exceeded radius
4. ✓ Submit button remains DISABLED
5. ✓ User can't submit until inside radius
```
**Expected Result**: ✅ Form disabled, validation error clear
---
### Scenario 3: Permission Denied
```
1. ✓ App launch → Permission dialog appears
2. ✓ User click "Deny" → Error message shows
3. ✓ Error: "Izin lokasi ditolak"
4. ✓ User can open Settings to grant permission manually
```
**Expected Result**: ✅ Clear error, actionable message
---
### Scenario 4: Camera Not Available
```
1. ✓ User click "Ambil Foto"
2. ✗ Device tidak support camera
3. ✓ Permission denied → Error message shows
4. ✓ Error: "Izin kamera ditolak"
```
**Expected Result**: ✅ Graceful handling, clear message
---
### Scenario 5: Network Error
```
1. ✓ All validation pass, ready to submit
2. ✗ Internet disconnected
3. ✓ Submit attempt → Network error occurs
4. ✓ Error message: "Tidak dapat terhubung ke server"
5. ✓ Loading spinner goes away
6. ✓ User can retry submission
```
**Expected Result**: ✅ Error handled, user can retry
---
### Scenario 6: Server Error (5xx)
```
1. ✓ All validation pass, ready to submit
2. ✓ Internet OK, but server returns 500
3. ✓ Error message shown: "Gagal kirim ke server"
4. ✓ Suggest checking later or contacting admin
5. ✓ User can retry
```
**Expected Result**: ✅ Error message clear, retry available
---
## 🔄 Testing with Different Locations
### Test Case 1: Inside Radius (Valid)
```
Reference: -7.0, 110.4
Test Location: -7.0005, 110.4005
Distance: ~50m
Expected: ✓ VALID
```
### Test Case 2: On Radius Boundary
```
Reference: -7.0, 110.4
Test Location: -7.0008, 110.4008
Distance: ~113m
Radius: 100m
Expected: ✗ INVALID (just outside)
```
### Test Case 3: Far Away
```
Reference: -7.0, 110.4
Test Location: -7.1, 110.5
Distance: ~15km+
Expected: ✗ INVALID
```
---
## 📱 Device Testing
### Minimum Requirements
- [ ] Android 8.0 (API 28) or higher
- [ ] 100MB free storage (APK + photo temp)
- [ ] Active internet connection
- [ ] Location services enabled
- [ ] Google Play Services installed
### Test Devices
- [ ] Physical device (recommended)
- [ ] Emulator with Google Play Services
- [ ] Different Android versions (8, 10, 12, 13, 14)
- [ ] Different screen sizes (small, normal, large)
### Test Scenarios per Device
```
Device 1: Samsung Galaxy (Android 14)
[ ] Location acquisition
[ ] Photo capture quality
[ ] Network stability
[ ] UI rendering
Device 2: Emulator (Android 12)
[ ] Permission flows
[ ] GPS emulation
[ ] Network simulation
[ ] Error handling
```
---
## 🐛 Debug Mode Checklist
### Enable Logging
```kotlin
// Di MainActivity atau N8nService
android.util.Log.d("AbsensiApp", "Location: $latitude, $longitude")
android.util.Log.d("AbsensiApp", "Distance: $distance meters")
android.util.Log.d("AbsensiApp", "Validation: $isValid")
android.util.Log.d("N8nService", "Request: ${json.toString()}")
android.util.Log.d("N8nService", "Response: $responseCode")
```
### Check Logcat
```bash
# Filter logs
adb logcat | grep "AbsensiApp"
adb logcat | grep "N8nService"
# View all logs
View → Tool Windows → Logcat (in Android Studio)
```
### Monitor Network
- [ ] Fiddler or Charles Proxy untuk intercept requests
- [ ] Verify JSON payload format
- [ ] Check response codes and messages
### Test GPS Simulation (Emulator)
```
Extended Controls → Location → Set latitude/longitude
Or use GPX file untuk simulate route
```
---
## ✨ Performance Checklist
### App Performance
- [ ] App startup time < 3 seconds
- [ ] Location acquisition < 5 seconds
- [ ] Photo capture responsive (no lag)
- [ ] Network request timeout configured (30s)
- [ ] No memory leaks in state management
- [ ] Bitmap properly disposed after submission
### UI Responsiveness
- [ ] Main thread not blocked by long operations
- [ ] Network calls on background thread
- [ ] Permission requests on main thread
- [ ] State updates propagate quickly
- [ ] No janky animations/scrolls
---
## 🔒 Security Checklist
### Data Protection
- [ ] GPS coordinates obfuscated/adjusted if needed
- [ ] Photo compressed to reasonable size
- [ ] HTTPS used for API calls
- [ ] Sensitive data not logged
- [ ] Hardcoded NPM/nama moved to config
- [ ] No credentials in code
### Permission Security
- [ ] Only request necessary permissions
- [ ] Graceful degradation if permission denied
- [ ] No forced prompts for optional features
- [ ] Runtime permissions properly handled
---
## 📊 Pre-Release Checklist
### Code Quality
- [ ] No TODOs or FIXMEs remaining
- [ ] All error paths handled
- [ ] No hardcoded strings (use resources)
- [ ] Proper error messages for users
- [ ] Code formatted and commented
- [ ] No debugging logs in release build
### Build Configuration
- [ ] Correct minSdk/targetSdk set
- [ ] ProGuard/R8 configured for release
- [ ] Signing key configured
- [ ] Version code incremented
- [ ] Version name updated in build.gradle
### Documentation
- [ ] README.md complete
- [ ] DOKUMENTASI.md updated
- [ ] PANDUAN_IMPLEMENTASI.md accurate
- [ ] QUICK_REFERENCE.md helpful
- [ ] Code comments clear and useful
### Testing Complete
- [ ] All unit tests pass
- [ ] Manual testing scenarios completed
- [ ] Different device/OS combinations tested
- [ ] Error scenarios all handled
- [ ] Performance acceptable
- [ ] No crash on common operations
---
## 🚀 Release Steps
1. **Finalize Configuration**
```
[ ] Update AttendanceConfig with production values
[ ] Set WEBHOOK_PRODUCTION as default
```
2. **Build Release APK**
```bash
./gradlew assembleRelease
```
3. **Sign APK** (if needed)
```bash
jarsigner -verbose -sigalg SHA1withRSA \
-digestalg SHA1 \
-keystore keystore.jks \
app-release-unsigned.apk alias_name
```
4. **Test Release APK**
```
[ ] Install on device
[ ] Test all scenarios
[ ] Verify permissions work
[ ] Test location validation
[ ] Test API submission
```
5. **Deploy**
```
[ ] Upload to Play Store / distribute APK
[ ] Monitor for crashes/feedback
[ ] Be ready to support users
```
---
## 📞 Post-Launch Support
### Monitor
- [ ] Crash Analytics (Firebase if available)
- [ ] User feedback and reviews
- [ ] N8n webhook logs
- [ ] Server/network issues
### Maintenance
- [ ] Fix any reported bugs
- [ ] Update coordinates if location changes
- [ ] Monitor API response times
- [ ] Keep Play Services updated
---
**Status**: Ready for deployment ✅
**Last Checked**: January 14, 2026

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@ -1,584 +0,0 @@
# 🔧 Troubleshooting Guide
## Common Issues & Solutions
### 🚨 Build Issues
#### Issue 1: Gradle Sync Failed
**Error**: `Gradle sync failed: Failed to resolve...`
**Solutions**:
1. Clean project: `Build``Clean Project`
2. Invalidate caches: `File``Invalidate Caches / Restart`
3. Sync Gradle: `File``Sync Now`
4. Delete `.gradle` folder and try again
5. Check internet connection (gradle downloads dependencies)
---
#### Issue 2: Missing Dependencies
**Error**: `Unresolved reference: LocationValidator` atau similar
**Solutions**:
1. Verify file exists in correct package structure
2. Check package declaration at top of file
3. Rebuild project: `Build``Rebuild Project`
4. Check that all imports are present
5. File → Invalidate Caches / Restart
---
#### Issue 3: Kotlin Syntax Error
**Error**: `Type mismatch: inferred type is String? but Boolean was expected`
**Solutions**:
1. Check null-safety: use `?.` or `!!` appropriately
2. Verify data class properties match their types
3. Look for missing type annotations
4. Check imports for correct classes
---
### 📍 Location Issues
#### Issue 1: GPS Not Acquiring Location
**Error**: "Lokasi tidak tersedia"
**Causes & Solutions**:
- ❌ Location permission not granted
→ Check Settings → Apps → Permissions → Location (Allow)
- ❌ Location services disabled
→ Enable in Settings → Location → Location Services
- ❌ Cold start GPS (takes time to acquire)
→ Wait 30-60 seconds for GPS to warm up
→ Or enable "Use high accuracy" in location settings
- ❌ Testing in emulator
→ Use Extended Controls → Location to simulate GPS
→ Or use GPX file for GPS simulation
**Quick Check**:
```kotlin
// Test if GPS is available
val hasLocationPermission = ContextCompat.checkSelfPermission(
context, Manifest.permission.ACCESS_FINE_LOCATION
) == PackageManager.PERMISSION_GRANTED
// Test if location services enabled
val locationManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManager
val isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)
```
---
#### Issue 2: Location Always Invalid
**Error**: "✗ Lokasi tidak valid (2500m, maksimal 100m)"
**Causes & Solutions**:
- ❌ Reference coordinates wrong
→ Update `REFERENCE_LATITUDE` dan `REFERENCE_LONGITUDE` di `AttendanceConfig.kt`
→ Verify with Google Maps
- ❌ Radius too small
→ Increase `ALLOWED_RADIUS_METERS` temporarily for testing
→ Default is 100m, try 200m or 300m
- ❌ Testing from wrong location
→ Go to actual campus location
→ Or use emulator GPS simulation
**How to Fix**:
```kotlin
// File: AttendanceConfig.kt
const val REFERENCE_LATITUDE = -7.025 // ← Update this
const val REFERENCE_LONGITUDE = 110.415 // ← Update this
const val ALLOWED_RADIUS_METERS = 100.0 // ← Or increase this
```
**How to Verify Reference Coordinates**:
1. Go to campus location with device
2. Open Google Maps
3. Long-click on map → Coordinates appear at top
4. Copy latitude and longitude
5. Update in `AttendanceConfig.kt`
---
#### Issue 3: Distance Calculation Wrong
**Error**: Shows 5000m distance when clearly close to reference
**Causes & Solutions**:
- ❌ Latitude/longitude swapped
→ Check: latitude is first, longitude is second
→ Format should be: (-7.025, 110.415) not (110.415, -7.025)
- ❌ Wrong location acquired
→ Check Logcat: `Log.d("Location", "Lat: $lat, Lon: $lon")`
→ Verify with Google Maps
- ❌ Haversine formula bug
→ Run unit tests: `./gradlew test`
→ Check LocationValidatorTest results
**Debug Steps**:
```kotlin
// Add logging to MainActivity
Log.d("AbsensiApp", "Reference: -7.0, 110.4")
Log.d("AbsensiApp", "Student: ${state.location?.latitude}, ${state.location?.longitude}")
Log.d("AbsensiApp", "Distance: ???")
// Or test manually
val distance = LocationValidator.calculateDistance(
-7.0, 110.4,
-7.0035, 110.4042
)
Log.d("Distance Test", "Result: $distance meters")
```
---
### 📸 Camera Issues
#### Issue 1: Camera Permission Denied
**Error**: "Izin kamera ditolak"
**Solutions**:
1. Open Settings → Apps → YourApp → Permissions
2. Find "Camera" permission
3. Tap it → Select "Allow"
4. Return to app and try again
**For Emulator**:
1. Device Manager → Create/Edit device
2. Verify "Camera" is checked in hardware
3. Set Camera: "Emulated"
---
#### Issue 2: Photo Not Captured
**Error**: Camera opens but no photo saved
**Causes & Solutions**:
- ❌ User canceled camera intent
→ Just tap button again to retry
- ❌ Storage permission issue (older Android)
→ Grant `WRITE_EXTERNAL_STORAGE` in Settings
- ❌ Camera intent failure
→ Check if device has camera: `hasSystemFeature(PackageManager.FEATURE_CAMERA)`
**Debug**:
```kotlin
// Check in logcat
Log.d("Camera", "Result Code: $resultCode")
Log.d("Camera", "Data: ${result.data}")
Log.d("Camera", "Bitmap: ${bitmap != null}")
```
---
#### Issue 3: Photo Preview Not Showing
**Error**: PhotoPreviewCard shows "Belum ada foto"
**Causes & Solutions**:
- ❌ Bitmap is null
→ Check Activity.RESULT_OK returned
→ Verify `result.data?.extras?.getParcelable` working
- ❌ UI not updating
→ Ensure state.copy() is called
→ Check LaunchedEffect dependencies
**Quick Fix**:
```kotlin
// Add logging
if (bitmap != null) {
Log.d("Photo", "Bitmap size: ${bitmap.width}x${bitmap.height}")
state = state.copy(foto = bitmap)
} else {
Log.d("Photo", "Bitmap is null!")
}
```
---
### 🌐 Network Issues
#### Issue 1: Cannot Connect to Webhook
**Error**: "Gagal kirim ke server" or timeout
**Causes & Solutions**:
- ❌ No internet connection
→ Check WiFi/mobile data enabled
→ Ping google.com to verify
- ❌ Wrong webhook URL
→ Verify in `AttendanceConfig.kt`
→ Copy exact URL from N8n dashboard
- ❌ Firewall/VPN blocking
→ Disable VPN temporarily
→ Check if institution firewall allows HTTPS
- ❌ N8n server down
→ Test with curl: `curl -X POST https://n8n.lab.ubharajaya.ac.id/webhook/...`
→ Check N8n status page
**Webhook URL Check**:
```kotlin
// File: AttendanceConfig.kt
const val WEBHOOK_PRODUCTION = "https://n8n.lab.ubharajaya.ac.id/webhook/23c6993d-1792-48fb-ad1c-ffc78a3e6254"
// ↑ Copy exact URL, no typos!
```
---
#### Issue 2: Server Returns 400/500 Error
**Error**: "Absensi ditolak server" with error code
**Causes & Solutions**:
- **Status 400**: Data format wrong
→ Verify JSON structure matches expectations
→ Check all fields are present (npm, nama, lat, lon, foto)
→ Check foto is valid Base64
- **Status 401**: Authentication failed
→ Add authentication token if required
→ Contact server admin
- **Status 500**: Server error
→ Check N8n workflow logs
→ Verify database connection
→ Retry after server is fixed
**Test with Test Webhook First**:
```kotlin
// In MainActivity
isTest = true // Set this to test first
// Check results at: https://n8n.lab.ubharajaya.ac.id/webhook-test/...
```
---
#### Issue 3: Timeout (Takes Too Long)
**Error**: Request hangs for 30+ seconds then fails
**Solutions**:
1. Check network speed: Test with speed.test.com
2. Reduce photo size: Decrease `PHOTO_QUALITY` in `AttendanceConfig.kt`
3. Increase timeout: Change `API_TIMEOUT_MS` (but not recommended)
4. Check server response time (might be slow)
```kotlin
// File: AttendanceConfig.kt
const val PHOTO_QUALITY = 70 // Reduce from 80 to 70
const val API_TIMEOUT_MS = 30000 // Current 30 seconds
```
---
### ⚙️ Permission Issues
#### Issue 1: Permission Dialog Not Appearing
**Error**: App crashes or silently fails
**Solutions**:
1. Verify permission in `AndroidManifest.xml`:
```xml
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.INTERNET"/>
```
2. Check permission launcher is called:
```kotlin
LaunchedEffect(Unit) {
locationPermissionLauncher.launch(
Manifest.permission.ACCESS_FINE_LOCATION
)
}
```
3. For Android 12+, check targetSdk:
```gradle
targetSdk = 36
```
---
#### Issue 2: Permission Stuck on Denied
**Error**: User clicks "Deny" and can't recover
**Solutions**:
1. User must go to Settings manually:
→ Settings → Apps → YourApp → Permissions → Allow
2. Add UI hint in app:
```kotlin
if (state.errorMessage?.contains("Izin") == true) {
Button("Buka Pengaturan") {
val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
startActivity(intent)
}
}
```
---
### 💾 Data & State Issues
#### Issue 1: Form Not Validating
**Error**: Submit button always disabled or always enabled
**Causes & Solutions**:
- ❌ Validation logic wrong
→ Check `LocationValidator.isLocationValid()` implementation
→ Run unit tests: `./gradlew test`
- ❌ State not updating
→ Verify state.copy() being called
→ Check all conditions in button enabled state
**Validation Checklist**:
```kotlin
// Button should be enabled only when ALL true:
val canSubmit = (
state.location != null && // Location acquired
state.foto != null && // Photo taken
state.validationResult.isValid && // Location valid
!state.isLoadingSubmit // Not currently submitting
)
SubmitButtonWithLoader(
// ...
isEnabled = canSubmit // ← Check this
)
```
---
#### Issue 2: State Lost on Screen Rotation
**Error**: Form data disappears when device rotates
**Solutions**:
This is normal - Compose restores state automatically via `remember {}`
To persist across full app restart:
```kotlin
// Would need ViewModel + SavedStateHandle (advanced feature)
// Currently: state is reset on process death (acceptable for MVP)
```
---
#### Issue 3: Photo Bitmap Memory Issue
**Error**: "OutOfMemoryError: Bitmap too large" or app crashes
**Solutions**:
1. Reduce photo quality:
```kotlin
const val PHOTO_QUALITY = 60 // Reduce from 80
```
2. Compress after capture:
```kotlin
// In bitmapToBase64:
bitmap.compress(Bitmap.CompressFormat.JPEG, PHOTO_QUALITY, outputStream)
```
3. For low-memory devices:
- Scale down bitmap before encoding
- Or use WebP format (better compression)
---
### 🧪 Testing Issues
#### Issue 1: Unit Tests Not Running
**Error**: "No tests found" or tests fail
**Solutions**:
1. Run from command line:
```bash
./gradlew test
```
2. Or in Android Studio:
- Right-click test file → Run 'LocationValidatorTest'
- Or use Test Configuration
3. Verify test file location:
```
app/src/test/java/.../LocationValidatorTest.kt ✓ Correct
app/src/androidTest/java/.../LocationValidatorTest.kt ✗ Wrong
```
---
#### Issue 2: Manual Testing Stuck
**Error**: Can't reproduce the flow
**Quick Test Checklist**:
- [ ] Device/emulator has internet
- [ ] Location services enabled
- [ ] All permissions granted
- [ ] Camera app works
- [ ] Webhook URL correct
**Fastest Flow**:
1. Grant permissions automatically
2. Hardcode valid location (for testing)
3. Take photo
4. Click submit
5. Should complete in < 10 seconds
---
### 🎨 UI Issues
#### Issue 1: Layout Cut Off on Small Screens
**Error**: Buttons/text not visible
**Solutions**:
1. Already implemented: `verticalScroll(rememberScrollState())`
2. Reduce padding: `modifier.padding(16.dp)``modifier.padding(8.dp)`
3. Use `Column` scrolling instead of fixed height
```kotlin
Column(
modifier = modifier
.fillMaxSize()
.padding(16.dp)
.verticalScroll(rememberScrollState()) // ← This allows scrolling
)
```
---
#### Issue 2: Dark Mode Not Working
**Error**: Text hard to read or colors wrong
**Solutions**:
1. Theme already supports dynamic colors (Material 3)
2. Verify `Theme.kt` has proper dark/light variants
3. Test: Settings → Display → Dark theme → On/Off
---
#### Issue 3: Loading Spinner Not Showing
**Error**: Button says "Mengirim..." but no spinner
**Solutions**:
1. Check `isLoading` state is true:
```kotlin
state = state.copy(isLoadingSubmit = true)
```
2. Verify spinner code in `SubmitButtonWithLoader`:
```kotlin
if (isLoading) {
CircularProgressIndicator(...) // ← Should show
}
```
---
## 🆘 Emergency Troubleshooting
### App Crashes on Launch
1. Check Logcat for full error stack trace
2. Look for line number where crash happens
3. Most common: Missing permission or dependency
4. Try: `Build``Clean Project``Rebuild Project`
### Complete State Reset
```bash
# Uninstall app completely
./gradlew uninstallDebug
# Clean all build artifacts
./gradlew clean
# Rebuild everything
./gradlew installDebug
```
### Last Resort: Check Dependencies
```gradle
// Verify all dependencies installed
./gradlew dependencies
// Check for conflicts
./gradlew dependencyInsight --dependency location-services
```
---
## 📊 Debugging Commands
### View All Logs
```bash
adb logcat
```
### Filter Specific Tags
```bash
adb logcat | grep "AbsensiApp"
adb logcat | grep "N8nService"
adb logcat | grep "LocationValidator"
```
### Clear Logs
```bash
adb logcat -c
```
### Install Debug App
```bash
./gradlew installDebug
```
### Uninstall App
```bash
adb uninstall id.ac.ubharajaya.sistemakademik
```
### View App Logs in Real-time
```bash
adb logcat *:S AbsensiApp:D
```
---
## 🔍 Verification Checklist
Before declaring bug fixed, verify:
- [ ] Issue is reproducible
- [ ] Logs show no errors
- [ ] All permissions granted
- [ ] Internet connection active
- [ ] Coordinates correct
- [ ] Server responding
- [ ] Photo quality acceptable
- [ ] Location accuracy good
- [ ] Form submission successful
- [ ] Data received at webhook
---
**Still stuck?**
1. Re-read QUICK_REFERENCE.md
2. Check DOKUMENTASI.md for detailed explanations
3. Review TESTING_CHECKLIST.md for testing procedures
4. Check ARCHITECTURE.md for design understanding
5. Look at comments in actual code files
---
**Last Updated**: January 14, 2026
**Version**: 1.0

View File

@ -45,20 +45,11 @@ dependencies {
implementation(libs.androidx.core.ktx)
implementation(libs.androidx.lifecycle.runtime.ktx)
implementation(libs.androidx.activity.compose)
implementation("androidx.activity:activity-compose:1.9.0")
implementation(platform(libs.androidx.compose.bom))
implementation(libs.androidx.compose.ui)
implementation(libs.androidx.compose.ui.graphics)
implementation(libs.androidx.compose.ui.tooling.preview)
implementation(libs.androidx.compose.material3)
implementation("androidx.compose.material:material-icons-extended")
implementation("androidx.navigation:navigation-compose:2.7.7")
implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.8.0")
// Location (GPS)
implementation("com.google.android.gms:play-services-location:21.0.1")
// JSON Serialization
implementation("com.google.code.gson:gson:2.10.1")
testImplementation(libs.junit)
androidTestImplementation(libs.androidx.junit)
androidTestImplementation(libs.androidx.espresso.core)

View File

@ -2,14 +2,6 @@
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools">
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-feature
android:name="android.hardware.camera"
android:required="false" />
<application
android:allowBackup="true"
android:dataExtractionRules="@xml/data_extraction_rules"

View File

@ -1,668 +1,47 @@
package id.ac.ubharajaya.sistemakademik
import android.Manifest
import android.app.Activity
import android.content.Intent
import android.content.pm.PackageManager
import android.graphics.Bitmap
import android.os.Bundle
import android.provider.MediaStore
import android.widget.Toast
import androidx.activity.ComponentActivity
import androidx.activity.compose.rememberLauncherForActivityResult
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.activity.result.contract.ActivityResultContracts
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.text.KeyboardOptions
import androidx.compose.foundation.verticalScroll
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.DateRange
import androidx.compose.material.icons.filled.Home
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Scaffold
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.input.KeyboardType
import androidx.compose.ui.unit.dp
import androidx.core.content.ContextCompat
import androidx.lifecycle.viewmodel.compose.viewModel
import androidx.navigation.NavController
import androidx.navigation.compose.NavHost
import androidx.navigation.compose.composable
import androidx.navigation.compose.rememberNavController
import com.google.android.gms.location.LocationServices
import id.ac.ubharajaya.sistemakademik.config.AttendanceConfig
import id.ac.ubharajaya.sistemakademik.models.AttendanceState
import id.ac.ubharajaya.sistemakademik.models.AttendanceStatus
import id.ac.ubharajaya.sistemakademik.models.Course
import id.ac.ubharajaya.sistemakademik.models.LocationData
import id.ac.ubharajaya.sistemakademik.network.N8nService
import id.ac.ubharajaya.sistemakademik.ui.components.ErrorAlertCard
import id.ac.ubharajaya.sistemakademik.ui.components.LocationStatusCard
import id.ac.ubharajaya.sistemakademik.ui.components.PhotoPreviewCard
import id.ac.ubharajaya.sistemakademik.ui.components.SubmitButtonWithLoader
import id.ac.ubharajaya.sistemakademik.ui.screens.HistoryScreen
import id.ac.ubharajaya.sistemakademik.ui.screens.LoginScreen
import androidx.compose.ui.tooling.preview.Preview
import id.ac.ubharajaya.sistemakademik.ui.theme.SistemAkademikTheme
import id.ac.ubharajaya.sistemakademik.ui.viewmodel.UserViewModel
import id.ac.ubharajaya.sistemakademik.utils.AuthService
import id.ac.ubharajaya.sistemakademik.utils.CourseService
import id.ac.ubharajaya.sistemakademik.utils.ImageUtils
import id.ac.ubharajaya.sistemakademik.utils.LocationValidator
import kotlin.concurrent.thread
import androidx.compose.foundation.layout.heightIn
/* ================= ACTIVITY ================= */
class MainActivity : ComponentActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
enableEdgeToEdge()
setContent {
SistemAkademikTheme {
AppNavigation(activity = this)
Scaffold(modifier = Modifier.fillMaxSize()) { innerPadding ->
Greeting(
name = "Android",
modifier = Modifier.padding(innerPadding)
)
}
}
}
}
}
@Composable
fun AppNavigation(activity: ComponentActivity) {
val navController = rememberNavController()
val authService = remember { AuthService(activity) }
val userViewModel: UserViewModel = viewModel()
val startDestination = if (authService.isLoggedIn()) "main" else "login"
NavHost(navController = navController, startDestination = startDestination) {
composable("login") {
LoginScreen {
nama, npm ->
authService.login(nama, npm)
userViewModel.setUser(nama, npm)
navController.navigate("main") {
popUpTo("login") { inclusive = true }
}
}
}
composable("main") {
MainScreen(activity = activity, userViewModel = userViewModel, navController = navController)
}
}
}
@Composable
fun MainScreen(activity: ComponentActivity, userViewModel: UserViewModel, navController: NavController) {
val mainNavController = rememberNavController()
Scaffold(
bottomBar = {
BottomNavigationBar(navController = mainNavController)
}
) {
NavHost(
navController = mainNavController,
startDestination = "absensi",
modifier = Modifier.padding(it)
) {
composable("absensi") {
AbsensiScreen(activity = activity, userViewModel = userViewModel, appNavController = navController)
}
composable("riwayat") {
HistoryScreen()
}
}
}
}
@Composable
fun BottomNavigationBar(navController: androidx.navigation.NavController) {
val items = listOf(
"absensi" to Icons.Default.Home,
"riwayat" to Icons.Default.DateRange
)
var selectedItem by remember { mutableStateOf("absensi") }
NavigationBar {
items.forEach { (route, icon) ->
NavigationBarItem(
icon = { Icon(icon, contentDescription = route) },
label = { Text(route) },
selected = selectedItem == route,
onClick = {
selectedItem = route
navController.navigate(route) {
popUpTo(navController.graph.startDestinationId) {
saveState = true
}
launchSingleTop = true
restoreState = true
}
}
)
}
}
}
/* ================= UI ================= */
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun AbsensiScreen(
modifier: Modifier = Modifier,
activity: ComponentActivity,
userViewModel: UserViewModel,
appNavController: NavController
) {
val context = LocalContext.current
val authService = remember { AuthService(context) }
// State management
var state by remember {
mutableStateOf(
AttendanceState()
)
}
val studentName by userViewModel.nama
val studentNpm by userViewModel.npm
var isEditing by remember { mutableStateOf(false) }
var selectedStatus by remember { mutableStateOf(AttendanceStatus.PRESENT) }
var courses by remember { mutableStateOf<List<Course>>(emptyList()) }
var selectedCourse by remember { mutableStateOf<Course?>(null) }
var showCourseSelector by remember { mutableStateOf(false) }
var searchQuery by remember { mutableStateOf("") }
val fusedLocationClient = LocationServices.getFusedLocationProviderClient(context)
val n8nService = remember { N8nService(activity) }
val courseService = remember { CourseService(context) }
// Initialize courses
LaunchedEffect(Unit) {
courseService.initializeSampleData()
courses = courseService.getCourses()
selectedCourse = courseService.getSelectedCourse() ?: courses.firstOrNull()
}
// Update location when location data changes
LaunchedEffect(state.location, selectedStatus) {
if (selectedStatus == AttendanceStatus.PRESENT) {
state = if (state.location != null) {
state.copy(
validationResult = state.validationResult.copy(
isValid = true, // Always valid for "Hadir" to allow submission
message = "Lokasi valid untuk status Hadir"
)
)
} else {
state.copy(
validationResult = state.validationResult.copy(
isValid = false,
message = "Mencari lokasi..."
)
)
}
} else {
state = state.copy(
validationResult = state.validationResult.copy(
isValid = true,
message = "Tidak perlu validasi lokasi untuk status ini"
)
)
}
}
/* ===== Permission Launchers ===== */
val locationPermissionLauncher =
rememberLauncherForActivityResult(
ActivityResultContracts.RequestPermission()
) { granted ->
if (granted) {
state = state.copy(isLoadingLocation = true)
if (
ContextCompat.checkSelfPermission(
context,
Manifest.permission.ACCESS_FINE_LOCATION
) == PackageManager.PERMISSION_GRANTED
) {
fusedLocationClient.lastLocation
.addOnSuccessListener { location ->
if (location != null) {
state = state.copy(
location = LocationData(
latitude = location.latitude,
longitude = location.longitude,
accuracy = location.accuracy
),
isLoadingLocation = false,
isLocationPermissionGranted = true
)
} else {
state = state.copy(
errorMessage = "Lokasi tidak tersedia. Pastikan GPS aktif.",
isLoadingLocation = false
)
}
}
.addOnFailureListener {
state = state.copy(
errorMessage = "Gagal mengambil lokasi: ${it.message}",
isLoadingLocation = false
)
}
}
} else {
state = state.copy(
errorMessage = "Izin lokasi ditolak. Aktifkan di pengaturan aplikasi."
)
Toast.makeText(
context,
"Izin lokasi ditolak",
Toast.LENGTH_SHORT
).show()
}
}
val cameraLauncher =
rememberLauncherForActivityResult(
ActivityResultContracts.StartActivityForResult()
) { result ->
if (result.resultCode == Activity.RESULT_OK) {
val bitmap =
result.data?.extras?.getParcelable("data", Bitmap::class.java)
if (bitmap != null) {
state = state.copy(foto = bitmap)
Toast.makeText(
context,
"✓ Foto berhasil diambil",
Toast.LENGTH_SHORT
).show()
}
}
}
val cameraPermissionLauncher =
rememberLauncherForActivityResult(
ActivityResultContracts.RequestPermission()
) { granted ->
if (granted) {
state = state.copy(isCameraPermissionGranted = true)
val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
cameraLauncher.launch(intent)
} else {
state = state.copy(
errorMessage = "Izin kamera ditolak. Aktifkan di pengaturan aplikasi."
)
Toast.makeText(
context,
"Izin kamera ditolak",
Toast.LENGTH_SHORT
).show()
}
}
/* ===== Request Awal ===== */
LaunchedEffect(Unit) {
locationPermissionLauncher.launch(
Manifest.permission.ACCESS_FINE_LOCATION
)
}
fun getStatusLabel(status: AttendanceStatus): String {
return when (status) {
AttendanceStatus.PRESENT -> "Hadir"
AttendanceStatus.SICK -> "Sakit"
AttendanceStatus.EXCUSED -> "Izin"
else -> status.name
}
}
/* ===== UI ===== */
Column(
fun Greeting(name: String, modifier: Modifier = Modifier) {
Text(
text = "Hello $name!",
modifier = modifier
.fillMaxSize()
.padding(16.dp)
.verticalScroll(rememberScrollState()),
verticalArrangement = Arrangement.spacedBy(16.dp)
) {
)
}
Text(
text = "Absensi Akademik",
style = MaterialTheme.typography.headlineSmall
)
// Error Alert
ErrorAlertCard(
message = state.errorMessage,
onDismiss = {
state = state.copy(errorMessage = null)
}
)
// Student and Course Information Card
Card(
modifier = Modifier.fillMaxWidth(),
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.primaryContainer),
elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
) {
Column(
modifier = Modifier
.fillMaxWidth()
.padding(16.dp),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
if (isEditing) {
OutlinedTextField(
value = studentName ?: "",
onValueChange = { userViewModel.nama.value = it },
label = { Text("Nama Mahasiswa") },
modifier = Modifier.fillMaxWidth()
)
OutlinedTextField(
value = studentNpm ?: "",
onValueChange = { userViewModel.npm.value = it },
label = { Text("NPM") },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
modifier = Modifier.fillMaxWidth()
)
Button(onClick = { isEditing = false }) {
Text("Simpan")
}
} else {
Text(
text = "Informasi Mahasiswa",
style = MaterialTheme.typography.titleMedium,
fontWeight = FontWeight.Bold,
color = MaterialTheme.colorScheme.onPrimaryContainer
)
Text(
text = "Nama: ${studentName ?: ""}",
style = MaterialTheme.typography.bodyLarge,
color = MaterialTheme.colorScheme.onPrimaryContainer
)
Text(
text = "NPM: ${studentNpm ?: ""}",
style = MaterialTheme.typography.bodyMedium,
color = MaterialTheme.colorScheme.onPrimaryContainer
)
Row {
Button(onClick = { isEditing = true }) {
Text("Ubah Data")
}
Spacer(modifier = Modifier.width(8.dp))
Button(onClick = {
authService.logout()
appNavController.navigate("login") {
popUpTo("main") { inclusive = true }
}
}) {
Text("Logout")
}
}
}
Divider(modifier = Modifier.padding(vertical = 4.dp))
Text(
text = "Mata Kuliah",
style = MaterialTheme.typography.titleMedium,
fontWeight = FontWeight.Bold,
color = MaterialTheme.colorScheme.onPrimaryContainer
)
Button(
onClick = { showCourseSelector = true },
modifier = Modifier.fillMaxWidth(),
colors = ButtonDefaults.buttonColors(
containerColor = MaterialTheme.colorScheme.primary
)
) {
Text(
text = selectedCourse?.courseName ?: "Pilih Mata Kuliah",
modifier = Modifier.weight(1f)
)
}
if (selectedCourse != null) {
Text(
text = "Kode: ${selectedCourse!!.courseCode} | Dosen: ${selectedCourse!!.lecturer}",
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onPrimaryContainer
)
}
}
}
// Course Selector Dialog
if (showCourseSelector) {
AlertDialog(
onDismissRequest = { showCourseSelector = false },
title = { Text("Pilih Mata Kuliah") },
text = {
Column(
modifier = Modifier
.fillMaxWidth()
.heightIn(max = 300.dp),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
OutlinedTextField(
value = searchQuery,
onValueChange = { searchQuery = it },
label = { Text("Cari Mata Kuliah") },
modifier = Modifier.fillMaxWidth()
)
val filteredCourses = courses.filter {
it.courseName.contains(searchQuery, ignoreCase = true) ||
it.courseCode.contains(searchQuery, ignoreCase = true)
}
Column(
modifier = Modifier.verticalScroll(rememberScrollState())
) {
filteredCourses.forEach { course ->
Button(
onClick = {
selectedCourse = course
courseService.setSelectedCourse(course)
showCourseSelector = false
searchQuery = ""
},
modifier = Modifier.fillMaxWidth(),
colors = ButtonDefaults.buttonColors(
containerColor = if (selectedCourse?.courseId == course.courseId)
MaterialTheme.colorScheme.primary
else
MaterialTheme.colorScheme.secondary
)
) {
Column(
modifier = Modifier
.fillMaxWidth()
.padding(8.dp),
verticalArrangement = Arrangement.spacedBy(4.dp)
) {
Text(
text = course.courseName,
style = MaterialTheme.typography.labelMedium
)
Text(
text = "${course.courseCode} - ${course.lecturer}",
style = MaterialTheme.typography.labelSmall
)
}
}
}
}
}
},
confirmButton = {
TextButton(onClick = { showCourseSelector = false }) {
Text("Tutup")
}
}
)
}
// Location and Photo section
if (selectedStatus == AttendanceStatus.PRESENT) {
// Location Status Card
LocationStatusCard(
latitude = state.location?.latitude,
longitude = state.location?.longitude,
validationMessage = state.validationResult.message,
isLoading = state.isLoadingLocation
)
}
PhotoPreviewCard(
bitmap = state.foto,
onRetake = {
state = state.copy(foto = null)
cameraPermissionLauncher.launch(Manifest.permission.CAMERA)
}
)
// Attendance Status Dropdown
var expanded by remember { mutableStateOf(false) }
val items = listOf(AttendanceStatus.PRESENT, AttendanceStatus.SICK, AttendanceStatus.EXCUSED)
Box {
ExposedDropdownMenuBox(expanded = expanded, onExpandedChange = { expanded = !expanded }) {
OutlinedTextField(
value = getStatusLabel(selectedStatus),
onValueChange = {},
readOnly = true,
label = { Text("Status Kehadiran") },
trailingIcon = {
ExposedDropdownMenuDefaults.TrailingIcon(expanded = expanded)
},
modifier = Modifier
.fillMaxWidth()
.menuAnchor()
)
ExposedDropdownMenu(
expanded = expanded,
onDismissRequest = { expanded = false }
) {
items.forEach { status ->
DropdownMenuItem(
text = { Text(getStatusLabel(status)) },
onClick = {
selectedStatus = status
expanded = false
}
)
}
}
}
}
// Buttons
Button(
onClick = {
cameraPermissionLauncher.launch(
Manifest.permission.CAMERA
)
},
modifier = Modifier.fillMaxWidth(),
enabled = !state.isLoadingSubmit
) {
Text(if (state.foto == null) "Ambil Foto" else "Ganti Foto")
}
SubmitButtonWithLoader(
text = "Kirim Absensi",
onClick = {
val isPresent = selectedStatus == AttendanceStatus.PRESENT
val canSubmit = if (isPresent) {
selectedCourse != null && state.location != null && state.foto != null && state.validationResult.isValid
} else {
selectedCourse != null && state.foto != null
}
if (canSubmit) {
state = state.copy(isLoadingSubmit = true)
val dummyLocation by lazy { LocationData(0.0, 0.0, 0.0f) }
n8nService.submitAttendanceWithCourse(
npm = studentNpm ?: "",
nama = studentName ?: "",
courseId = selectedCourse!!.courseId,
courseCode = selectedCourse!!.courseCode,
courseName = selectedCourse!!.courseName,
latitude = if (isPresent) state.location!!.latitude else dummyLocation.latitude,
longitude = if (isPresent) state.location!!.longitude else dummyLocation.longitude,
foto = state.foto!!,
isTest = false,
status = selectedStatus, // Add status to the call
callback = object : N8nService.SubmitCallback {
override fun onSuccess(responseCode: Int, message: String) {
state = state.copy(
isLoadingSubmit = false,
errorMessage = null
)
// Save to local database
val photoBase64 = state.foto?.let { ImageUtils.bitmapToBase64(it) } ?: ""
val attendance = id.ac.ubharajaya.sistemakademik.models.Attendance(
npm = studentNpm ?: "",
nama = studentName ?: "",
courseId = selectedCourse!!.courseId,
courseCode = selectedCourse!!.courseCode,
courseName = selectedCourse!!.courseName,
latitude = if (isPresent) state.location!!.latitude else dummyLocation.latitude,
longitude = if (isPresent) state.location!!.longitude else dummyLocation.longitude,
timestamp = System.currentTimeMillis(),
date = courseService.getCurrentDate(),
time = courseService.formatTime(System.currentTimeMillis()),
status = selectedStatus,
isValid = if (isPresent) state.validationResult.isValid else true,
submissionResult = "Success: $message",
photoBase64 = photoBase64
)
courseService.saveAttendance(attendance)
// Reset after successful submission
thread {
Thread.sleep(2000)
state = state.copy(
foto = null,
location = null
)
}
}
override fun onError(error: Throwable, message: String) {
state = state.copy(
isLoadingSubmit = false,
errorMessage = message
)
}
}
)
}
},
isLoading = state.isLoadingSubmit,
isEnabled = if (selectedStatus == AttendanceStatus.PRESENT) {
selectedCourse != null && state.location != null && state.foto != null && state.validationResult.isValid
} else {
selectedCourse != null && state.foto != null
}
)
Spacer(modifier = Modifier.height(16.dp))
@Preview(showBackground = true)
@Composable
fun GreetingPreview() {
SistemAkademikTheme {
Greeting("Android")
}
}

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@ -1,29 +0,0 @@
package id.ac.ubharajaya.sistemakademik.config
/**
* Configuration for attendance validation
*/
object AttendanceConfig {
// Reference location coordinates (campus location)
// Latitude and Longitude for the campus
const val REFERENCE_LATITUDE = -6.224228
const val REFERENCE_LONGITUDE = 107.009291
// Allowed radius in meters (150 meters for more tolerance)
const val ALLOWED_RADIUS_METERS = 150.0
// Coordinate adjustment for privacy
// Add random offset to real coordinates before storage
const val LATITUDE_OFFSET = 0.0001 // ~11 meters
const val LONGITUDE_OFFSET = 0.0001 // ~8 meters
// N8n webhook endpoints
const val WEBHOOK_PRODUCTION = "https://n8n.lab.ubharajaya.ac.id/webhook/23c6993d-1792-48fb-ad1c-ffc78a3e6254"
const val WEBHOOK_TEST = "https://n8n.lab.ubharajaya.ac.id/webhook-test/23c6993d-1792-48fb-ad1c-ffc78a3e6254"
// API timeout
const val API_TIMEOUT_MS = 30000
// Photo compression quality (0-100)
const val PHOTO_QUALITY = 80
}

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@ -1,26 +0,0 @@
package id.ac.ubharajaya.sistemakademik.config
import id.ac.ubharajaya.sistemakademik.models.Course
/**
* Configuration untuk Mata Kuliah (Course)
*/
object CourseConfig {
// Sample courses data (In production, fetch from server)
fun getSampleCourses(): List<Course> {
return listOf(
Course(
courseId = "COURSE_001",
courseCode = "PPB2024",
courseName = "Pemrograman Perangkat Bergerak",
lecturer = "Arif Rifai Dwiyanto, ST., MTI",
credits = 3,
schedule = "Kamis 13.30-16.00",
room = "Grha Tanoto W-104",
semester = 5,
isActive = true
),
)
}
}

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@ -1,18 +0,0 @@
package id.ac.ubharajaya.sistemakademik.models
data class Attendance(
val npm: String,
val nama: String,
val courseId: String,
val courseCode: String,
val courseName: String,
val latitude: Double,
val longitude: Double,
val timestamp: Long,
val date: String,
val time: String,
val status: AttendanceStatus,
val isValid: Boolean,
val submissionResult: String,
val photoBase64: String? = null // Foto tidak wajib ada
)

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@ -1,48 +0,0 @@
package id.ac.ubharajaya.sistemakademik.models
import android.graphics.Bitmap
data class AttendanceRecord(
val npm: String,
val nama: String,
val latitude: Double,
val longitude: Double,
val timestamp: Long,
val foto: Bitmap?,
val isValid: Boolean = false,
val validationMessage: String = ""
)
data class LocationData(
val latitude: Double,
val longitude: Double,
val accuracy: Float = 0f,
val timestamp: Long = System.currentTimeMillis()
)
data class ValidationResult(
val isValid: Boolean,
val message: String,
val status: ValidationStatus = ValidationStatus.IDLE
)
enum class ValidationStatus {
IDLE,
ACQUIRING,
VALIDATING,
SUCCESS,
OUT_OF_RANGE,
ERROR
}
data class AttendanceState(
val location: LocationData? = null,
val foto: Bitmap? = null,
val isLoadingLocation: Boolean = false,
val isLoadingSubmit: Boolean = false,
val validationResult: ValidationResult = ValidationResult(false, ""),
val errorMessage: String? = null,
val isLocationPermissionGranted: Boolean = false,
val isCameraPermissionGranted: Boolean = false
)

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@ -1,72 +0,0 @@
package id.ac.ubharajaya.sistemakademik.models
import java.io.Serializable
/**
* Model untuk Mata Kuliah
*/
data class Course(
val courseId: String,
val courseCode: String,
val courseName: String,
val lecturer: String,
val credits: Int,
val schedule: String, // e.g., "Senin 08:00-09:30"
val room: String,
val semester: Int,
val isActive: Boolean = true
) : Serializable
/**
* Status Kehadiran
*/
enum class AttendanceStatus {
PRESENT, // Hadir
LATE, // Terlambat
ABSENT, // Tidak hadir
EXCUSED, // Izin
SICK, // Sakit
PENDING, // Menunggu validasi
REJECTED // Ditolak
}
/**
* Data untuk laporan kehadiran
*/
data class AttendanceReport(
val courseId: String,
val courseName: String,
val courseCode: String,
val totalSessions: Int,
val presentCount: Int,
val lateCount: Int,
val absentCount: Int,
val excusedCount: Int,
val attendancePercentage: Double,
val attendanceRecords: List<Attendance> = emptyList()
) : Serializable
/**
* Data untuk ringkasan akademik
*/
data class AcademicSummary(
val totalCourses: Int,
val activeCourses: Int,
val totalAttendanceRecords: Int,
val averageAttendancePercentage: Double,
val courses: List<Course> = emptyList()
) : Serializable
/**
* State untuk Course Screen
*/
data class CourseState(
val courses: List<Course> = emptyList(),
val isLoadingCourses: Boolean = false,
val selectedCourse: Course? = null,
val errorMessage: String? = null,
val attendanceHistory: List<Attendance> = emptyList(),
val isLoadingHistory: Boolean = false,
val academicSummary: AcademicSummary? = null
)

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@ -1,127 +0,0 @@
package id.ac.ubharajaya.sistemakademik.network
import android.graphics.Bitmap
import android.util.Base64
import android.widget.Toast
import androidx.activity.ComponentActivity
import id.ac.ubharajaya.sistemakademik.config.AttendanceConfig.PHOTO_QUALITY
import id.ac.ubharajaya.sistemakademik.models.AttendanceStatus
import org.json.JSONObject
import java.io.ByteArrayOutputStream
import java.net.HttpURLConnection
import java.net.URL
import kotlin.concurrent.thread
class N8nService(private val activity: ComponentActivity) {
companion object {
private const val WEBHOOK_URL = "https://n8n.lab.ubharajaya.ac.id/webhook/23c6993d-1792-48fb-ad1c-ffc78a3e6254"
private const val WEBHOOK_TEST_URL = "https://n8n.lab.ubharajaya.ac.id/webhook-test/23c6993d-1792-48fb-ad1c-ffc78a3e6254"
private const val TIMEOUT_MS = 30000
}
interface SubmitCallback {
fun onSuccess(responseCode: Int, message: String)
fun onError(error: Throwable, message: String)
}
fun submitAttendance(
npm: String,
nama: String,
latitude: Double,
longitude: Double,
foto: Bitmap,
isTest: Boolean = false,
callback: SubmitCallback? = null
) {
submitAttendanceWithCourse(
npm = npm,
nama = nama,
courseId = "",
courseCode = "",
courseName = "",
latitude = latitude,
longitude = longitude,
foto = foto,
isTest = isTest,
status = AttendanceStatus.PRESENT,
callback = callback
)
}
fun submitAttendanceWithCourse(
npm: String,
nama: String,
courseId: String,
courseCode: String,
courseName: String,
latitude: Double,
longitude: Double,
foto: Bitmap,
isTest: Boolean = false,
status: AttendanceStatus,
callback: SubmitCallback? = null
) {
thread {
try {
val url = URL(if (isTest) WEBHOOK_TEST_URL else WEBHOOK_URL)
val conn = url.openConnection() as HttpURLConnection
conn.requestMethod = "POST"
conn.setRequestProperty("Content-Type", "application/json")
conn.setConnectTimeout(TIMEOUT_MS)
conn.setReadTimeout(TIMEOUT_MS)
conn.doOutput = true
// Create JSON payload
val json = JSONObject().apply {
put("npm", npm)
put("nama", nama)
put("courseId", courseId)
put("courseCode", courseCode)
put("mata_kuliah", courseName) // Mengubah nama parameter
put("latitude", latitude)
put("longitude", longitude)
put("timestamp", System.currentTimeMillis())
put("foto_base64", bitmapToBase64(foto))
put("status", status.name)
}
// Send request
conn.outputStream.use { outputStream ->
outputStream.write(json.toString().toByteArray())
outputStream.flush()
}
val responseCode = conn.responseCode
val responseMessage = conn.responseMessage ?: "No message"
activity.runOnUiThread {
if (responseCode == 200) {
val message = "✓ Absensi diterima server"
Toast.makeText(activity, message, Toast.LENGTH_SHORT).show()
callback?.onSuccess(responseCode, message)
} else {
val message = "✗ Absensi ditolak server (Code: $responseCode)"
Toast.makeText(activity, message, Toast.LENGTH_SHORT).show()
callback?.onError(Exception(responseMessage), message)
}
}
conn.disconnect()
} catch (exception: Exception) {
activity.runOnUiThread {
val errorMessage = "Gagal kirim ke server: ${exception.message}"
Toast.makeText(activity, errorMessage, Toast.LENGTH_SHORT).show()
callback?.onError(exception, errorMessage)
}
}
}
}
private fun bitmapToBase64(bitmap: Bitmap): String {
val outputStream = ByteArrayOutputStream()
bitmap.compress(Bitmap.CompressFormat.JPEG, PHOTO_QUALITY, outputStream)
return Base64.encodeToString(outputStream.toByteArray(), Base64.NO_WRAP)
}
}

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@ -1,214 +0,0 @@
package id.ac.ubharajaya.sistemakademik.ui.components
import android.graphics.Bitmap
import androidx.compose.foundation.Image
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Clear
import androidx.compose.material3.*
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.asImageBitmap
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
@Composable
fun PhotoPreviewCard(
bitmap: Bitmap?,
onRetake: () -> Unit,
modifier: Modifier = Modifier
) {
Card(
modifier = modifier
.fillMaxWidth()
.height(300.dp),
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(
containerColor = MaterialTheme.colorScheme.surfaceVariant
)
) {
if (bitmap != null) {
Box(modifier = Modifier.fillMaxSize()) {
Image(
bitmap = bitmap.asImageBitmap(),
contentDescription = "Preview foto absensi",
modifier = Modifier.fillMaxSize()
)
Button(
onClick = onRetake,
modifier = Modifier
.align(Alignment.BottomEnd)
.padding(16.dp),
colors = ButtonDefaults.buttonColors(
containerColor = MaterialTheme.colorScheme.error
)
) {
Icon(
Icons.Default.Clear,
contentDescription = "Ambil ulang",
modifier = Modifier.size(18.dp)
)
Spacer(modifier = Modifier.width(8.dp))
Text("Ambil Ulang")
}
}
} else {
Box(
modifier = Modifier
.fillMaxSize()
.background(MaterialTheme.colorScheme.surfaceVariant),
contentAlignment = Alignment.Center
) {
Text(
"Belum ada foto",
style = MaterialTheme.typography.bodyMedium,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
}
}
}
}
@Composable
fun LocationStatusCard(
latitude: Double?,
longitude: Double?,
validationMessage: String,
isLoading: Boolean,
modifier: Modifier = Modifier
) {
Card(
modifier = modifier.fillMaxWidth(),
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(
containerColor = MaterialTheme.colorScheme.primaryContainer
)
) {
Column(
modifier = Modifier.padding(16.dp),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
Text(
"Status Lokasi",
style = MaterialTheme.typography.titleSmall,
fontWeight = FontWeight.Bold
)
if (isLoading) {
Row(
horizontalArrangement = Arrangement.spacedBy(8.dp),
verticalAlignment = Alignment.CenterVertically
) {
CircularProgressIndicator(
modifier = Modifier.size(20.dp),
strokeWidth = 2.dp
)
Text("Mengambil lokasi...")
}
} else if (latitude != null && longitude != null) {
Column(verticalArrangement = Arrangement.spacedBy(4.dp)) {
Text(
"Latitude: %.6f".format(latitude),
style = MaterialTheme.typography.bodySmall
)
Text(
"Longitude: %.6f".format(longitude),
style = MaterialTheme.typography.bodySmall
)
Text(
validationMessage,
style = MaterialTheme.typography.bodySmall,
fontWeight = FontWeight.SemiBold,
color = if (validationMessage.startsWith("")) {
MaterialTheme.colorScheme.onPrimaryContainer
} else {
MaterialTheme.colorScheme.error
}
)
}
} else {
Text(
"Lokasi tidak tersedia",
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.error
)
}
}
}
}
@Composable
fun ErrorAlertCard(
message: String?,
onDismiss: () -> Unit,
modifier: Modifier = Modifier
) {
if (message != null) {
Card(
modifier = modifier.fillMaxWidth(),
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(
containerColor = MaterialTheme.colorScheme.errorContainer
)
) {
Row(
modifier = Modifier
.fillMaxWidth()
.padding(16.dp),
horizontalArrangement = Arrangement.SpaceBetween,
verticalAlignment = Alignment.CenterVertically
) {
Text(
message,
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onErrorContainer,
modifier = Modifier.weight(1f)
)
IconButton(
onClick = onDismiss,
modifier = Modifier.size(24.dp)
) {
Icon(
Icons.Default.Clear,
contentDescription = "Tutup",
tint = MaterialTheme.colorScheme.onErrorContainer
)
}
}
}
}
}
@Composable
fun SubmitButtonWithLoader(
text: String,
onClick: () -> Unit,
isLoading: Boolean,
isEnabled: Boolean = true,
modifier: Modifier = Modifier
) {
Button(
onClick = onClick,
enabled = isEnabled && !isLoading,
modifier = modifier.fillMaxWidth(),
colors = ButtonDefaults.buttonColors(
containerColor = MaterialTheme.colorScheme.primary,
disabledContainerColor = MaterialTheme.colorScheme.surfaceVariant
)
) {
if (isLoading) {
CircularProgressIndicator(
modifier = Modifier.size(20.dp),
strokeWidth = 2.dp,
color = MaterialTheme.colorScheme.onPrimary
)
Spacer(modifier = Modifier.width(8.dp))
}
Text(if (isLoading) "Mengirim..." else text)
}
}

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@ -1,503 +0,0 @@
package id.ac.ubharajaya.sistemakademik.ui.components
import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.ArrowForward
import androidx.compose.material.icons.filled.Book
import androidx.compose.material.icons.filled.EventNote
import androidx.compose.material.icons.filled.Person
import androidx.compose.material.icons.filled.Schedule
import androidx.compose.material3.*
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import id.ac.ubharajaya.sistemakademik.models.Attendance
import id.ac.ubharajaya.sistemakademik.models.AttendanceReport
import id.ac.ubharajaya.sistemakademik.models.AttendanceStatus
import id.ac.ubharajaya.sistemakademik.models.Course
/**
* Card untuk menampilkan mata kuliah
*/
@Composable
fun CourseCard(
course: Course,
onCourseClick: (Course) -> Unit,
modifier: Modifier = Modifier,
isSelected: Boolean = false,
attendanceCount: Int = 0
) {
Card(
modifier = modifier
.fillMaxWidth()
.clickable { onCourseClick(course) },
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(
containerColor = if (isSelected) MaterialTheme.colorScheme.primaryContainer
else MaterialTheme.colorScheme.surface
),
border = if (isSelected) {
androidx.compose.foundation.BorderStroke(
2.dp,
MaterialTheme.colorScheme.primary
)
} else null,
elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
) {
Column(
modifier = Modifier
.fillMaxWidth()
.padding(16.dp),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
// Header dengan kode & nama mata kuliah
Row(
modifier = Modifier.fillMaxWidth(),
horizontalArrangement = Arrangement.SpaceBetween,
verticalAlignment = Alignment.CenterVertically
) {
Column(modifier = Modifier.weight(1f)) {
Text(
text = course.courseCode,
style = MaterialTheme.typography.labelSmall,
color = MaterialTheme.colorScheme.primary,
fontWeight = FontWeight.Bold
)
Text(
text = course.courseName,
style = MaterialTheme.typography.titleMedium,
fontWeight = FontWeight.SemiBold,
maxLines = 2
)
}
Icon(
Icons.Default.ArrowForward,
contentDescription = null,
modifier = Modifier.size(20.dp),
tint = MaterialTheme.colorScheme.primary
)
}
Divider()
// Info dosen
Row(
modifier = Modifier.fillMaxWidth(),
verticalAlignment = Alignment.CenterVertically,
horizontalArrangement = Arrangement.spacedBy(8.dp)
) {
Icon(
Icons.Default.Person,
contentDescription = null,
modifier = Modifier.size(16.dp),
tint = MaterialTheme.colorScheme.onSurfaceVariant
)
Text(
text = course.lecturer,
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
}
// Info jadwal
Row(
modifier = Modifier.fillMaxWidth(),
verticalAlignment = Alignment.CenterVertically,
horizontalArrangement = Arrangement.spacedBy(8.dp)
) {
Icon(
Icons.Default.Schedule,
contentDescription = null,
modifier = Modifier.size(16.dp),
tint = MaterialTheme.colorScheme.onSurfaceVariant
)
Text(
text = course.schedule,
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
}
// Ruangan dan kredits
Row(
modifier = Modifier
.fillMaxWidth()
.padding(top = 4.dp),
horizontalArrangement = Arrangement.spacedBy(12.dp)
) {
Surface(
modifier = Modifier.weight(1f),
color = MaterialTheme.colorScheme.tertiaryContainer,
shape = RoundedCornerShape(6.dp)
) {
Text(
text = "Ruang: ${course.room}",
style = MaterialTheme.typography.labelSmall,
modifier = Modifier.padding(6.dp),
color = MaterialTheme.colorScheme.onTertiaryContainer
)
}
Surface(
modifier = Modifier.weight(1f),
color = MaterialTheme.colorScheme.secondaryContainer,
shape = RoundedCornerShape(6.dp)
) {
Text(
text = "${course.credits} SKS",
style = MaterialTheme.typography.labelSmall,
modifier = Modifier.padding(6.dp),
color = MaterialTheme.colorScheme.onSecondaryContainer
)
}
}
// Kehadiran info
if (attendanceCount > 0) {
Surface(
modifier = Modifier.fillMaxWidth(),
color = MaterialTheme.colorScheme.primaryContainer,
shape = RoundedCornerShape(6.dp)
) {
Row(
modifier = Modifier
.fillMaxWidth()
.padding(8.dp),
verticalAlignment = Alignment.CenterVertically,
horizontalArrangement = Arrangement.spacedBy(6.dp)
) {
Icon(
Icons.Default.EventNote,
contentDescription = null,
modifier = Modifier.size(16.dp),
tint = MaterialTheme.colorScheme.primary
)
Text(
text = "$attendanceCount kehadiran tercatat",
style = MaterialTheme.typography.labelSmall,
color = MaterialTheme.colorScheme.primary
)
}
}
}
}
}
}
/**
* List dari mata kuliah
*/
@Composable
fun CourseListSection(
courses: List<Course>,
onCourseClick: (Course) -> Unit,
selectedCourseId: String? = null,
attendanceMap: Map<String, Int> = emptyMap(),
modifier: Modifier = Modifier,
isLoading: Boolean = false
) {
Column(modifier = modifier.fillMaxWidth()) {
if (isLoading) {
Box(
modifier = Modifier
.fillMaxWidth()
.padding(32.dp),
contentAlignment = Alignment.Center
) {
CircularProgressIndicator()
}
} else if (courses.isEmpty()) {
Box(
modifier = Modifier
.fillMaxWidth()
.padding(32.dp),
contentAlignment = Alignment.Center
) {
Text(
text = "Tidak ada mata kuliah",
style = MaterialTheme.typography.bodyMedium,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
}
} else {
LazyColumn(
verticalArrangement = Arrangement.spacedBy(12.dp),
modifier = Modifier.fillMaxWidth()
) {
items(courses) { course ->
CourseCard(
course = course,
onCourseClick = onCourseClick,
isSelected = course.courseId == selectedCourseId,
attendanceCount = attendanceMap[course.courseId] ?: 0
)
}
}
}
}
}
/**
* Card untuk menampilkan laporan kehadiran
*/
@Composable
fun AttendanceReportCard(
report: AttendanceReport,
modifier: Modifier = Modifier
) {
Card(
modifier = modifier.fillMaxWidth(),
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface),
elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
) {
Column(
modifier = Modifier
.fillMaxWidth()
.padding(16.dp),
verticalArrangement = Arrangement.spacedBy(12.dp)
) {
// Header
Text(
text = "Laporan Kehadiran",
style = MaterialTheme.typography.titleMedium,
fontWeight = FontWeight.Bold
)
// Persentase kehadiran
Row(
modifier = Modifier
.fillMaxWidth()
.background(
color = when {
report.attendancePercentage >= 80 -> Color(0xFFE8F5E9)
report.attendancePercentage >= 70 -> Color(0xFFFFF3E0)
else -> Color(0xFFFFEBEE)
},
shape = RoundedCornerShape(8.dp)
)
.padding(12.dp),
horizontalArrangement = Arrangement.SpaceBetween,
verticalAlignment = Alignment.CenterVertically
) {
Text(
text = "Presentase Kehadiran",
style = MaterialTheme.typography.bodyMedium
)
Text(
text = "%.1f%%".format(report.attendancePercentage),
style = MaterialTheme.typography.headlineSmall,
fontWeight = FontWeight.Bold,
color = when {
report.attendancePercentage >= 80 -> Color(0xFF2E7D32)
report.attendancePercentage >= 70 -> Color(0xFFF57C00)
else -> Color(0xFFC62828)
}
)
}
Divider()
// Statistik
Row(
modifier = Modifier.fillMaxWidth(),
horizontalArrangement = Arrangement.spacedBy(8.dp)
) {
StatisticItem(
label = "Total",
value = report.totalSessions.toString(),
modifier = Modifier.weight(1f),
color = Color(0xFF1976D2)
)
StatisticItem(
label = "Hadir",
value = report.presentCount.toString(),
modifier = Modifier.weight(1f),
color = Color(0xFF388E3C)
)
StatisticItem(
label = "Terlambat",
value = report.lateCount.toString(),
modifier = Modifier.weight(1f),
color = Color(0xFFFFA726)
)
}
Row(
modifier = Modifier.fillMaxWidth(),
horizontalArrangement = Arrangement.spacedBy(8.dp)
) {
StatisticItem(
label = "Tidak Hadir",
value = report.absentCount.toString(),
modifier = Modifier.weight(1f),
color = Color(0xFFD32F2F)
)
StatisticItem(
label = "Izin/Sakit",
value = report.excusedCount.toString(),
modifier = Modifier.weight(1f),
color = Color(0xFF7B1FA2)
)
}
}
}
}
/**
* Item untuk statistik
*/
@Composable
fun StatisticItem(
label: String,
value: String,
modifier: Modifier = Modifier,
color: Color = MaterialTheme.colorScheme.primary
) {
Surface(
modifier = modifier,
color = color.copy(alpha = 0.1f),
shape = RoundedCornerShape(8.dp)
) {
Column(
modifier = Modifier
.fillMaxWidth()
.padding(12.dp),
horizontalAlignment = Alignment.CenterHorizontally,
verticalArrangement = Arrangement.spacedBy(4.dp)
) {
Text(
text = value,
style = MaterialTheme.typography.headlineMedium,
fontWeight = FontWeight.Bold,
color = color
)
Text(
text = label,
style = MaterialTheme.typography.labelSmall,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
}
}
}
/**
* Card untuk menampilkan detail kehadiran
*/
@Composable
fun AttendanceDetailCard(
attendance: Attendance,
modifier: Modifier = Modifier
) {
Card(
modifier = modifier.fillMaxWidth(),
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface),
elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
) {
Column(
modifier = Modifier
.fillMaxWidth()
.padding(12.dp),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
Row(
modifier = Modifier.fillMaxWidth(),
horizontalArrangement = Arrangement.SpaceBetween,
verticalAlignment = Alignment.CenterVertically
) {
Text(
text = attendance.date,
style = MaterialTheme.typography.bodyMedium,
fontWeight = FontWeight.SemiBold
)
Surface(
color = getStatusColor(attendance.status).copy(alpha = 0.2f),
shape = RoundedCornerShape(4.dp)
) {
Text(
text = getStatusLabel(attendance.status),
style = MaterialTheme.typography.labelSmall,
color = getStatusColor(attendance.status),
modifier = Modifier.padding(4.dp)
)
}
}
Text(
text = "Jam: ${attendance.time}",
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
}
}
}
/**
* List detail kehadiran
*/
@Composable
fun AttendanceHistoryList(
attendances: List<Attendance>,
modifier: Modifier = Modifier
) {
if (attendances.isEmpty()) {
Box(
modifier = modifier
.fillMaxWidth()
.padding(32.dp),
contentAlignment = Alignment.Center
) {
Text(
text = "Belum ada riwayat kehadiran",
style = MaterialTheme.typography.bodyMedium,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
}
} else {
LazyColumn(
modifier = modifier.fillMaxWidth(),
verticalArrangement = Arrangement.spacedBy(8.dp)
) {
items(attendances) { attendance ->
AttendanceDetailCard(attendance = attendance)
}
}
}
}
/**
* Helper function untuk mendapatkan warna status
*/
fun getStatusColor(status: AttendanceStatus): Color {
return when (status) {
AttendanceStatus.PRESENT -> Color(0xFF388E3C)
AttendanceStatus.LATE -> Color(0xFFFFA726)
AttendanceStatus.ABSENT -> Color(0xFFD32F2F)
AttendanceStatus.EXCUSED, AttendanceStatus.SICK -> Color(0xFF7B1FA2)
AttendanceStatus.PENDING -> Color(0xFF1976D2)
AttendanceStatus.REJECTED -> Color(0xFF8B0000)
}
}
/**
* Helper function untuk mendapatkan label status
*/
fun getStatusLabel(status: AttendanceStatus): String {
return when (status) {
AttendanceStatus.PRESENT -> "Hadir"
AttendanceStatus.LATE -> "Terlambat"
AttendanceStatus.ABSENT -> "Tidak Hadir"
AttendanceStatus.EXCUSED -> "Izin"
AttendanceStatus.SICK -> "Sakit"
AttendanceStatus.PENDING -> "Menunggu"
AttendanceStatus.REJECTED -> "Ditolak"
}
}

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package id.ac.ubharajaya.sistemakademik.ui.screens
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.verticalScroll
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.ArrowBack
import androidx.compose.material.icons.filled.Clear
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import id.ac.ubharajaya.sistemakademik.models.AttendanceStatus
import id.ac.ubharajaya.sistemakademik.models.Course
import id.ac.ubharajaya.sistemakademik.models.CourseState
import id.ac.ubharajaya.sistemakademik.ui.components.AttendanceHistoryList
import id.ac.ubharajaya.sistemakademik.ui.components.AttendanceReportCard
import id.ac.ubharajaya.sistemakademik.ui.components.CourseListSection
import id.ac.ubharajaya.sistemakademik.utils.CourseService
/**
* Screen untuk menampilkan daftar mata kuliah
*/
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun CourseListScreen(
courseService: CourseService,
onCourseSelect: (Course) -> Unit,
modifier: Modifier = Modifier
) {
var state by remember { mutableStateOf(CourseState()) }
var attendanceCountMap by remember { mutableStateOf<Map<String, Int>>(emptyMap()) }
LaunchedEffect(Unit) {
state = state.copy(isLoadingCourses = true)
try {
val courses = courseService.getCourses()
val countMap = mutableMapOf<String, Int>()
courses.forEach { course ->
countMap[course.courseId] = courseService.getAttendancesByCourse(course.courseId).size
}
attendanceCountMap = countMap
state = state.copy(
courses = courses,
isLoadingCourses = false
)
} catch (e: Exception) {
state = state.copy(
errorMessage = e.message,
isLoadingCourses = false
)
}
}
Column(
modifier = modifier
.fillMaxSize()
.padding(16.dp)
.verticalScroll(rememberScrollState()),
verticalArrangement = Arrangement.spacedBy(16.dp)
) {
Text(
text = "Daftar Mata Kuliah",
style = MaterialTheme.typography.headlineSmall
)
// Error message
if (state.errorMessage != null) {
ErrorAlertCard(
message = state.errorMessage,
onDismiss = {
state = state.copy(errorMessage = null)
}
)
}
// Course list
CourseListSection(
courses = state.courses,
onCourseClick = { course ->
state = state.copy(selectedCourse = course)
onCourseSelect(course)
},
selectedCourseId = state.selectedCourse?.courseId,
attendanceMap = attendanceCountMap,
isLoading = state.isLoadingCourses
)
Spacer(modifier = Modifier.height(16.dp))
}
}
/**
* Screen untuk menampilkan detail mata kuliah dan riwayat kehadiran
*/
@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun CourseDetailScreen(
courseService: CourseService,
course: Course?,
onBackClick: () -> Unit,
modifier: Modifier = Modifier
) {
var state by remember { mutableStateOf(CourseState()) }
LaunchedEffect(course?.courseId) {
if (course != null) {
try {
state = state.copy(
isLoadingHistory = true,
selectedCourse = course
)
val attendances = courseService.getAttendancesByCourse(course.courseId)
val report = courseService.generateAttendanceReport(course.courseId)
state = state.copy(
attendanceHistory = attendances,
academicSummary = null,
isLoadingHistory = false,
errorMessage = null
)
// Store report untuk ditampilkan
state = state.copy(
attendanceHistory = report.attendanceRecords
)
} catch (e: Exception) {
state = state.copy(
errorMessage = "Gagal memuat data: ${e.message}",
isLoadingHistory = false
)
}
}
}
if (course == null) {
Box(
modifier = modifier.fillMaxSize(),
contentAlignment = androidx.compose.ui.Alignment.Center
) {
Text("Pilih mata kuliah terlebih dahulu")
}
return
}
Column(
modifier = modifier
.fillMaxSize()
.verticalScroll(rememberScrollState())
) {
// Header dengan back button
TopAppBar(
title = { Text(text = course.courseName) },
navigationIcon = {
IconButton(onClick = onBackClick) {
Icon(Icons.Default.ArrowBack, contentDescription = "Back")
}
},
modifier = Modifier.fillMaxWidth()
)
Column(
modifier = Modifier
.fillMaxSize()
.padding(16.dp),
verticalArrangement = Arrangement.spacedBy(16.dp)
) {
// Course info
CourseInfoSection(course = course)
// Error message
if (state.errorMessage != null) {
ErrorAlertCard(
message = state.errorMessage,
onDismiss = {
state = state.copy(errorMessage = null)
}
)
}
if (state.isLoadingHistory) {
Box(
modifier = Modifier
.fillMaxWidth()
.padding(32.dp),
contentAlignment = androidx.compose.ui.Alignment.Center
) {
CircularProgressIndicator()
}
} else {
// Attendance report
val report = courseService.generateAttendanceReport(course.courseId)
if (report.totalSessions > 0) {
AttendanceReportCard(report = report)
}
// Attendance history
Text(
text = "Riwayat Kehadiran",
style = MaterialTheme.typography.titleMedium
)
AttendanceHistoryList(
attendances = state.attendanceHistory
)
}
Spacer(modifier = Modifier.height(16.dp))
}
}
}
/**
* Section untuk menampilkan info mata kuliah
*/
@Composable
fun CourseInfoSection(
course: Course,
modifier: Modifier = Modifier
) {
Card(
modifier = modifier.fillMaxWidth(),
shape = RoundedCornerShape(12.dp),
colors = CardDefaults.cardColors(containerColor = MaterialTheme.colorScheme.surface),
elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
) {
Column(
modifier = Modifier
.fillMaxWidth()
.padding(16.dp),
verticalArrangement = Arrangement.spacedBy(12.dp)
) {
InfoRow(label = "Kode Mata Kuliah", value = course.courseCode)
InfoRow(label = "Dosen Pengampu", value = course.lecturer)
InfoRow(label = "Jadwal", value = course.schedule)
InfoRow(label = "Ruang Kelas", value = course.room)
InfoRow(label = "SKS", value = "${course.credits} Satuan Kredit Semester")
InfoRow(label = "Semester", value = "Semester ${course.semester}")
}
}
}
/**
* Row untuk menampilkan info
*/
@Composable
fun InfoRow(
label: String,
value: String,
modifier: Modifier = Modifier
) {
Column(
modifier = modifier.fillMaxWidth(),
verticalArrangement = Arrangement.spacedBy(4.dp)
) {
Text(
text = label,
style = MaterialTheme.typography.labelSmall,
color = MaterialTheme.colorScheme.onSurfaceVariant
)
Text(
text = value,
style = MaterialTheme.typography.bodyMedium
)
}
}
/**
* Component untuk alert error
*/
@Composable
fun ErrorAlertCard(
message: String?,
onDismiss: () -> Unit,
modifier: Modifier = Modifier
) {
if (message != null) {
Card(
modifier = modifier.fillMaxWidth(),
shape = RoundedCornerShape(8.dp),
colors = CardDefaults.cardColors(
containerColor = MaterialTheme.colorScheme.errorContainer
)
) {
Row(
modifier = Modifier
.fillMaxWidth()
.padding(12.dp),
horizontalArrangement = Arrangement.SpaceBetween,
verticalAlignment = androidx.compose.ui.Alignment.CenterVertically
) {
Text(
text = message,
style = MaterialTheme.typography.bodySmall,
color = MaterialTheme.colorScheme.onErrorContainer,
modifier = Modifier.weight(1f)
)
IconButton(onClick = onDismiss) {
Icon(
Icons.Default.Clear,
contentDescription = "Dismiss",
tint = MaterialTheme.colorScheme.onErrorContainer
)
}
}
}
}
}

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@ -1,156 +0,0 @@
package id.ac.ubharajaya.sistemakademik.ui.screens
import androidx.compose.foundation.Image
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.items
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material3.Card
import androidx.compose.material3.CardDefaults
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.asImageBitmap
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import id.ac.ubharajaya.sistemakademik.models.Attendance
import id.ac.ubharajaya.sistemakademik.models.AttendanceReport
import id.ac.ubharajaya.sistemakademik.models.Course
import id.ac.ubharajaya.sistemakademik.utils.CourseService
import id.ac.ubharajaya.sistemakademik.utils.ImageUtils
@Composable
fun HistoryScreen() {
val context = LocalContext.current
val courseService = remember { CourseService(context) }
val courses = remember { mutableStateOf<List<Course>>(emptyList()) }
val attendanceReports = remember { mutableStateOf<List<AttendanceReport>>(emptyList()) }
val allAttendances = remember { mutableStateOf<List<Attendance>>(emptyList()) }
LaunchedEffect(Unit) {
courses.value = courseService.getCourses()
attendanceReports.value = courses.value.map { courseService.generateAttendanceReport(it.courseId) }
allAttendances.value = courseService.getAttendances().sortedByDescending { it.timestamp }
}
LazyColumn(
modifier = Modifier.fillMaxSize().padding(16.dp),
verticalArrangement = Arrangement.spacedBy(16.dp)
) {
item {
Text(
text = "Ringkasan Kehadiran",
style = MaterialTheme.typography.headlineSmall,
fontWeight = FontWeight.Bold
)
}
items(attendanceReports.value) { report ->
AttendanceSummaryCard(report = report)
}
item {
Text(
text = "Riwayat Absensi",
style = MaterialTheme.typography.headlineSmall,
fontWeight = FontWeight.Bold,
modifier = Modifier.padding(top = 16.dp)
)
}
items(allAttendances.value) { attendance ->
AttendanceLogCard(attendance = attendance)
}
}
}
@Composable
fun AttendanceSummaryCard(report: AttendanceReport) {
Card(
modifier = Modifier.fillMaxWidth(),
elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
) {
Column(modifier = Modifier.padding(16.dp)) {
Text(
text = report.courseName,
style = MaterialTheme.typography.titleMedium,
fontWeight = FontWeight.Bold
)
Spacer(modifier = Modifier.height(8.dp))
Text(text = "Total Pertemuan: ${report.totalSessions}")
Text(text = "Hadir: ${report.presentCount}")
Text(text = "Izin: ${report.excusedCount}")
Text(text = "Sakit: ${report.excusedCount}") // Assuming sick is counted in excused
}
}
}
@Composable
fun AttendanceLogCard(attendance: Attendance) {
Card(
modifier = Modifier.fillMaxWidth(),
shape = RoundedCornerShape(12.dp),
elevation = CardDefaults.cardElevation(defaultElevation = 4.dp)
) {
Row(
modifier = Modifier
.fillMaxWidth()
.padding(12.dp),
verticalAlignment = Alignment.CenterVertically
) {
// Photo on the left
Box(
modifier = Modifier
.size(64.dp)
.clip(RoundedCornerShape(8.dp))
.background(Color.Gray.copy(alpha = 0.2f)),
contentAlignment = Alignment.Center
) {
if (!attendance.photoBase64.isNullOrEmpty()) {
ImageUtils.base64ToBitmap(attendance.photoBase64)?.asImageBitmap()?.let {
Image(
bitmap = it,
contentDescription = "Foto Absensi",
contentScale = ContentScale.Crop,
modifier = Modifier.fillMaxSize()
)
}
} else {
Text("N/A", fontSize = 12.sp, color = Color.White)
}
}
Spacer(modifier = Modifier.width(16.dp))
// Information on the right
Column {
Text(
text = "${attendance.time} ${attendance.date}",
style = MaterialTheme.typography.bodySmall,
color = Color.Gray
)
Text(
text = attendance.courseName,
style = MaterialTheme.typography.titleMedium,
fontWeight = FontWeight.Bold
)
Spacer(modifier = Modifier.height(4.dp))
Text(
text = "Status: ${attendance.status} • Lat: ${String.format("%.5f", attendance.latitude)}, Lon: ${String.format("%.5f", attendance.longitude)}",
style = MaterialTheme.typography.bodyMedium
)
}
}
}
}

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@ -1,82 +0,0 @@
package id.ac.ubharajaya.sistemakademik.ui.screens
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.text.KeyboardOptions
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.input.KeyboardType
import androidx.compose.ui.text.input.PasswordVisualTransformation
import androidx.compose.ui.unit.dp
@Composable
fun LoginScreen(onLoginSuccess: (String, String) -> Unit) {
var nama by remember { mutableStateOf("") }
var npm by remember { mutableStateOf("") }
var password by remember { mutableStateOf("") }
var error by remember { mutableStateOf<String?>(null) }
fun attemptLogin() {
if (nama.isBlank() || npm.isBlank() || password.isBlank()) {
error = "Semua kolom harus diisi"
return
}
// Validasi password bisa ditambahkan di sini
error = null
onLoginSuccess(nama, npm)
}
Column(
modifier = Modifier
.fillMaxSize()
.padding(16.dp),
verticalArrangement = Arrangement.Center,
horizontalAlignment = Alignment.CenterHorizontally
) {
Text("Login", style = MaterialTheme.typography.headlineMedium)
Spacer(modifier = Modifier.height(32.dp))
if (error != null) {
Text(error!!, color = MaterialTheme.colorScheme.error)
Spacer(modifier = Modifier.height(16.dp))
}
OutlinedTextField(
value = nama,
onValueChange = { nama = it },
label = { Text("Nama") },
modifier = Modifier.fillMaxWidth(),
singleLine = true
)
Spacer(modifier = Modifier.height(16.dp))
OutlinedTextField(
value = npm,
onValueChange = { npm = it },
label = { Text("NPM") },
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
modifier = Modifier.fillMaxWidth(),
singleLine = true
)
Spacer(modifier = Modifier.height(16.dp))
OutlinedTextField(
value = password,
onValueChange = { password = it },
label = { Text("Password") },
visualTransformation = PasswordVisualTransformation(),
keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Password),
modifier = Modifier.fillMaxWidth(),
singleLine = true
)
Spacer(modifier = Modifier.height(32.dp))
Button(
onClick = { attemptLogin() },
modifier = Modifier.fillMaxWidth()
) {
Text("Login")
}
}
}

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@ -1,14 +0,0 @@
package id.ac.ubharajaya.sistemakademik.ui.viewmodel
import androidx.compose.runtime.mutableStateOf
import androidx.lifecycle.ViewModel
class UserViewModel : ViewModel() {
val nama = mutableStateOf<String?>(null)
val npm = mutableStateOf<String?>(null)
fun setUser(nama: String, npm: String) {
this.nama.value = nama
this.npm.value = npm
}
}

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@ -1,134 +0,0 @@
package id.ac.ubharajaya.sistemakademik.utils
import id.ac.ubharajaya.sistemakademik.models.Attendance
import id.ac.ubharajaya.sistemakademik.models.AttendanceStatus
import java.text.SimpleDateFormat
import java.util.Locale
/**
* Utility untuk operasi attendance
*/
object AttendanceUtils {
/**
* Hitung status kehadiran berdasarkan waktu
*/
fun determineAttendanceStatus(timestamp: Long, scheduleTimeStr: String): AttendanceStatus {
// Parse waktu jadwal (format: "HH:MM")
val scheduleParts = scheduleTimeStr.split(":")
if (scheduleParts.size < 2) return AttendanceStatus.PRESENT
val scheduleHour = scheduleParts[0].toIntOrNull() ?: return AttendanceStatus.PRESENT
val scheduleMinute = scheduleParts[1].toIntOrNull() ?: return AttendanceStatus.PRESENT
// Dapatkan waktu kehadiran
val timeFormat = SimpleDateFormat("HH", Locale.getDefault())
val minuteFormat = SimpleDateFormat("mm", Locale.getDefault())
val currentHour = timeFormat.format(timestamp).toIntOrNull() ?: return AttendanceStatus.PRESENT
val currentMinute = minuteFormat.format(timestamp).toIntOrNull() ?: return AttendanceStatus.PRESENT
return when {
currentHour < scheduleHour -> AttendanceStatus.PRESENT
currentHour == scheduleHour && currentMinute <= scheduleMinute + 15 -> AttendanceStatus.PRESENT
currentHour == scheduleHour && currentMinute > scheduleMinute + 15 -> AttendanceStatus.LATE
else -> AttendanceStatus.LATE
}
}
/**
* Generate ID unik untuk attendance record
*/
fun generateAttendanceId(npm: String, courseId: String, date: String): String {
return "${npm}_${courseId}_${date}_${System.currentTimeMillis()}"
}
/**
* Validasi data attendance sebelum disimpan
*/
fun validateAttendance(attendance: Attendance): Pair<Boolean, String> {
return when {
attendance.npm.isEmpty() -> Pair(false, "NPM tidak boleh kosong")
attendance.nama.isEmpty() -> Pair(false, "Nama tidak boleh kosong")
attendance.courseId.isEmpty() -> Pair(false, "Course ID tidak boleh kosong")
attendance.latitude == 0.0 || attendance.longitude == 0.0 -> {
Pair(false, "Koordinat tidak valid")
}
attendance.date.isEmpty() || attendance.time.isEmpty() -> {
Pair(false, "Tanggal dan waktu harus ada")
}
else -> Pair(true, "Data valid")
}
}
/**
* Format attendance untuk display
*/
fun formatAttendanceForDisplay(attendance: Attendance): String {
return """
NPM: ${attendance.npm}
Nama: ${attendance.nama}
Mata Kuliah: ${attendance.courseName} (${attendance.courseCode})
Tanggal: ${attendance.date}
Waktu: ${attendance.time}
Status: ${getStatusLabel(attendance.status)}
Lokasi: (${attendance.latitude}, ${attendance.longitude})
""".trimIndent()
}
/**
* Dapatkan label status
*/
fun getStatusLabel(status: AttendanceStatus): String {
return when (status) {
AttendanceStatus.PRESENT -> "Hadir"
AttendanceStatus.LATE -> "Terlambat"
AttendanceStatus.ABSENT -> "Tidak Hadir"
AttendanceStatus.EXCUSED -> "Izin"
AttendanceStatus.SICK -> "Sakit"
AttendanceStatus.PENDING -> "Menunggu"
AttendanceStatus.REJECTED -> "Ditolak"
}
}
/**
* Filter attendance berdasarkan rentang tanggal
*/
fun filterByDateRange(
attendances: List<Attendance>,
startDate: String,
endDate: String
): List<Attendance> {
return attendances.filter { attendance ->
attendance.date >= startDate && attendance.date <= endDate
}
}
/**
* Filter attendance berdasarkan status
*/
fun filterByStatus(
attendances: List<Attendance>,
status: AttendanceStatus
): List<Attendance> {
return attendances.filter { it.status == status }
}
/**
* Hitung rata-rata kehadiran dari multiple courses
*/
fun calculateAverageAttendance(reports: List<id.ac.ubharajaya.sistemakademik.models.AttendanceReport>): Double {
if (reports.isEmpty()) return 0.0
return reports.map { it.attendancePercentage }.average()
}
/**
* Cek apakah kehadiran memenuhi standar minimum
*/
fun meetsAttendanceStandard(
percentage: Double,
minimumPercentage: Double = 80.0
): Boolean {
return percentage >= minimumPercentage
}
}

View File

@ -1,44 +0,0 @@
package id.ac.ubharajaya.sistemakademik.utils
import android.content.Context
import android.content.SharedPreferences
class AuthService(context: Context) {
private val sharedPreferences: SharedPreferences =
context.getSharedPreferences("auth_prefs", Context.MODE_PRIVATE)
companion object {
private const val KEY_NAMA = "nama"
private const val KEY_NPM = "npm"
private const val KEY_IS_LOGGED_IN = "is_logged_in"
}
fun login(nama: String, npm: String) {
sharedPreferences.edit()
.putString(KEY_NAMA, nama)
.putString(KEY_NPM, npm)
.putBoolean(KEY_IS_LOGGED_IN, true)
.apply()
}
fun logout() {
sharedPreferences.edit()
.remove(KEY_NAMA)
.remove(KEY_NPM)
.putBoolean(KEY_IS_LOGGED_IN, false)
.apply()
}
fun isLoggedIn(): Boolean {
return sharedPreferences.getBoolean(KEY_IS_LOGGED_IN, false)
}
fun getNama(): String? {
return sharedPreferences.getString(KEY_NAMA, null)
}
fun getNpm(): String? {
return sharedPreferences.getString(KEY_NPM, null)
}
}

View File

@ -1,214 +0,0 @@
package id.ac.ubharajaya.sistemakademik.utils
import android.content.Context
import android.content.SharedPreferences
import com.google.gson.Gson
import com.google.gson.reflect.TypeToken
import id.ac.ubharajaya.sistemakademik.config.CourseConfig
import id.ac.ubharajaya.sistemakademik.models.Attendance
import id.ac.ubharajaya.sistemakademik.models.AttendanceReport
import id.ac.ubharajaya.sistemakademik.models.AttendanceStatus
import id.ac.ubharajaya.sistemakademik.models.Course
import java.text.SimpleDateFormat
import java.util.Calendar
import java.util.Locale
class CourseService(context: Context) {
private val sharedPreferences: SharedPreferences =
context.getSharedPreferences("course_attendance_db", Context.MODE_PRIVATE)
private val gson = Gson()
companion object {
private const val COURSES_KEY = "courses_list"
private const val ATTENDANCE_KEY = "attendance_list"
private const val SELECTED_COURSE_KEY = "selected_course"
private const val DATA_VERSION_KEY = "data_version"
private const val CURRENT_DATA_VERSION = 2 // Versi 2: Menambahkan photoBase64
}
init {
checkDataVersion()
}
private fun checkDataVersion() {
val storedVersion = sharedPreferences.getInt(DATA_VERSION_KEY, 0)
if (storedVersion < CURRENT_DATA_VERSION) {
// Jika versi data lama, hapus data yang tidak kompatibel
val editor = sharedPreferences.edit()
editor.remove(COURSES_KEY)
editor.remove(ATTENDANCE_KEY)
editor.remove(SELECTED_COURSE_KEY)
// Perbarui ke versi saat ini
editor.putInt(DATA_VERSION_KEY, CURRENT_DATA_VERSION)
editor.apply()
}
}
/**
* Initialize dengan data sample jika belum ada
*/
fun initializeSampleData() {
val sampleCourses = CourseConfig.getSampleCourses()
saveCourses(sampleCourses)
}
/**
* Dapatkan semua mata kuliah
*/
fun getCourses(): List<Course> {
return try {
val json = sharedPreferences.getString(COURSES_KEY, null)
if (json != null) {
val type = object : TypeToken<List<Course>>() {}.type
gson.fromJson(json, type)
} else {
emptyList()
}
} catch (e: Exception) {
e.printStackTrace()
emptyList()
}
}
/**
* Simpan mata kuliah
*/
fun saveCourses(courses: List<Course>) {
try {
val json = gson.toJson(courses)
sharedPreferences.edit().putString(COURSES_KEY, json).apply()
} catch (e: Exception) {
e.printStackTrace()
}
}
/**
* Dapatkan mata kuliah berdasarkan ID
*/
fun getCourseById(courseId: String): Course? {
return getCourses().find { it.courseId == courseId }
}
/**
* Simpan kehadiran
*/
fun saveAttendance(attendance: Attendance) {
try {
val attendances = getAttendances().toMutableList()
val existingIndex = attendances.indexOfFirst {
it.courseId == attendance.courseId && it.date == attendance.date
}
if (existingIndex >= 0) {
attendances[existingIndex] = attendance
} else {
attendances.add(attendance)
}
val json = gson.toJson(attendances)
sharedPreferences.edit().putString(ATTENDANCE_KEY, json).apply()
} catch (e: Exception) {
e.printStackTrace()
}
}
/**
* Dapatkan semua kehadiran
*/
fun getAttendances(): List<Attendance> {
val json = sharedPreferences.getString(ATTENDANCE_KEY, null)
return if (json != null) {
try {
val type = object : TypeToken<List<Attendance>>() {}.type
gson.fromJson(json, type)
} catch (e: Exception) {
e.printStackTrace()
clearAttendanceData()
emptyList()
}
} else {
emptyList()
}
}
private fun clearAttendanceData() {
sharedPreferences.edit().remove(ATTENDANCE_KEY).apply()
}
/**
* Dapatkan kehadiran berdasarkan mata kuliah
*/
fun getAttendancesByCourse(courseId: String): List<Attendance> {
return getAttendances().filter { it.courseId == courseId }.sortedByDescending { it.timestamp }
}
/**
* Buat laporan kehadiran untuk mata kuliah
*/
fun generateAttendanceReport(courseId: String): AttendanceReport {
val course = getCourseById(courseId) ?: return AttendanceReport(
courseId = courseId, courseName = "", courseCode = "", totalSessions = 0,
presentCount = 0, lateCount = 0, absentCount = 0, excusedCount = 0, attendancePercentage = 0.0
)
val attendances = getAttendancesByCourse(courseId)
val totalSessions = attendances.size
val presentCount = attendances.count { it.status == AttendanceStatus.PRESENT }
val lateCount = attendances.count { it.status == AttendanceStatus.LATE }
val absentCount = attendances.count { it.status == AttendanceStatus.ABSENT }
val excusedCount = attendances.count { it.status == AttendanceStatus.EXCUSED || it.status == AttendanceStatus.SICK }
val attendancePercentage = if (totalSessions > 0) {
((presentCount + lateCount).toDouble() / totalSessions * 100)
} else {
0.0
}
return AttendanceReport(
courseId = courseId, courseName = course.courseName, courseCode = course.courseCode,
totalSessions = totalSessions, presentCount = presentCount, lateCount = lateCount,
absentCount = absentCount, excusedCount = excusedCount, attendancePercentage = attendancePercentage,
attendanceRecords = attendances
)
}
fun getCurrentDate(): String {
val dateFormat = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
return dateFormat.format(Calendar.getInstance().time)
}
fun formatTime(timestamp: Long): String {
val timeFormat = SimpleDateFormat("HH:mm:ss", Locale.getDefault())
return timeFormat.format(timestamp)
}
fun setSelectedCourse(course: Course) {
try {
val json = gson.toJson(course)
sharedPreferences.edit().putString(SELECTED_COURSE_KEY, json).apply()
} catch (e: Exception) {
e.printStackTrace()
}
}
fun getSelectedCourse(): Course? {
return try {
val json = sharedPreferences.getString(SELECTED_COURSE_KEY, null)
if (json != null) {
gson.fromJson(json, Course::class.java)
} else {
null
}
} catch (e: Exception) {
e.printStackTrace()
null
}
}
fun clearAllData() {
sharedPreferences.edit().clear().apply()
// Setel ulang versi setelah membersihkan data
sharedPreferences.edit().putInt(DATA_VERSION_KEY, CURRENT_DATA_VERSION).apply()
}
}

View File

@ -1,42 +0,0 @@
package id.ac.ubharajaya.sistemakademik.utils
sealed class AttendanceError {
data class NetworkError(val message: String) : AttendanceError()
data class LocationError(val message: String) : AttendanceError()
data class PermissionError(val message: String) : AttendanceError()
data class ValidationError(val message: String) : AttendanceError()
data class UnknownError(val throwable: Throwable) : AttendanceError()
}
object ErrorHandler {
fun getErrorMessage(error: AttendanceError): String = when (error) {
is AttendanceError.NetworkError -> {
when {
error.message.contains("Connection", ignoreCase = true) ->
"Tidak dapat terhubung ke server. Periksa koneksi internet Anda."
error.message.contains("Timeout", ignoreCase = true) ->
"Koneksi ke server timeout. Coba lagi nanti."
else -> "Gagal mengirim absensi: ${error.message}"
}
}
is AttendanceError.LocationError -> {
when {
error.message.contains("Permission", ignoreCase = true) ->
"Izin lokasi ditolak. Aktifkan izin lokasi di pengaturan aplikasi."
error.message.contains("Unavailable", ignoreCase = true) ->
"Layanan lokasi tidak tersedia. Nyalakan GPS Anda."
error.message.contains("Timeout", ignoreCase = true) ->
"Gagal mendapatkan lokasi. Coba lagi."
else -> "Kesalahan lokasi: ${error.message}"
}
}
is AttendanceError.PermissionError -> error.message
is AttendanceError.ValidationError -> error.message
is AttendanceError.UnknownError -> "Terjadi kesalahan tidak terduga. Coba lagi nanti."
}
fun getUserFriendlyMessage(error: AttendanceError): String {
return getErrorMessage(error)
}
}

View File

@ -1,26 +0,0 @@
package id.ac.ubharajaya.sistemakademik.utils
import android.graphics.Bitmap
import android.graphics.BitmapFactory
import android.util.Base64
import java.io.ByteArrayOutputStream
object ImageUtils {
fun bitmapToBase64(bitmap: Bitmap): String {
val byteArrayOutputStream = ByteArrayOutputStream()
bitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream)
val byteArray = byteArrayOutputStream.toByteArray()
return Base64.encodeToString(byteArray, Base64.DEFAULT)
}
fun base64ToBitmap(base64Str: String): Bitmap? {
return try {
val decodedBytes = Base64.decode(base64Str, Base64.DEFAULT)
BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.size)
} catch (e: IllegalArgumentException) {
e.printStackTrace()
null
}
}
}

View File

@ -1,111 +0,0 @@
package id.ac.ubharajaya.sistemakademik.utils
import id.ac.ubharajaya.sistemakademik.config.AttendanceConfig
import kotlin.math.*
/**
* Utility class for location-based validation
*/
object LocationValidator {
// Use configuration values
private val REFERENCE_LATITUDE = AttendanceConfig.REFERENCE_LATITUDE
private val REFERENCE_LONGITUDE = AttendanceConfig.REFERENCE_LONGITUDE
private val ALLOWED_RADIUS_METERS = AttendanceConfig.ALLOWED_RADIUS_METERS
// Earth radius in meters
private const val EARTH_RADIUS_METERS = 6371000.0
/**
* Calculate distance between two coordinates using Haversine formula
* @param lat1 Latitude of first point
* @param lon1 Longitude of first point
* @param lat2 Latitude of second point
* @param lon2 Longitude of second point
* @return Distance in meters
*/
fun calculateDistance(
lat1: Double,
lon1: Double,
lat2: Double,
lon2: Double
): Double {
val dLat = Math.toRadians(lat2 - lat1)
val dLon = Math.toRadians(lon2 - lon1)
val a = sin(dLat / 2) * sin(dLat / 2) +
cos(Math.toRadians(lat1)) * cos(Math.toRadians(lat2)) *
sin(dLon / 2) * sin(dLon / 2)
val c = 2 * asin(sqrt(a))
return EARTH_RADIUS_METERS * c
}
/**
* Validate if student location is within allowed radius
* @param studentLatitude Student's current latitude
* @param studentLongitude Student's current longitude
* @param allowedRadius Radius in meters (default: ALLOWED_RADIUS_METERS)
* @return Boolean indicating if location is valid
*/
fun isLocationValid(
studentLatitude: Double,
studentLongitude: Double,
allowedRadius: Double = ALLOWED_RADIUS_METERS
): Boolean {
val distance = calculateDistance(
REFERENCE_LATITUDE,
REFERENCE_LONGITUDE,
studentLatitude,
studentLongitude
)
return distance <= allowedRadius
}
/**
* Get validation message with distance information
* @param studentLatitude Student's current latitude
* @param studentLongitude Student's current longitude
* @param allowedRadius Radius in meters
* @return Validation message string
*/
fun getValidationMessage(
studentLatitude: Double,
studentLongitude: Double,
allowedRadius: Double = ALLOWED_RADIUS_METERS
): String {
val distance = calculateDistance(
REFERENCE_LATITUDE,
REFERENCE_LONGITUDE,
studentLatitude,
studentLongitude
)
return if (distance <= allowedRadius) {
"✓ Lokasi valid (${distance.toInt()}m dari kampus)"
} else {
"✗ Lokasi tidak valid (${distance.toInt()}m, maksimal ${allowedRadius.toInt()}m)"
}
}
/**
* Adjust coordinates (for privacy)
* @param latitude Original latitude
* @param longitude Original longitude
* @param latOffset Latitude offset in degrees
* @param lonOffset Longitude offset in degrees
* @return Adjusted coordinates as Pair(adjustedLat, adjustedLon)
*/
fun adjustCoordinates(
latitude: Double,
longitude: Double,
latOffset: Double = 0.0,
lonOffset: Double = 0.0
): Pair<Double, Double> {
return Pair(
latitude + latOffset,
longitude + lonOffset
)
}
}

View File

@ -1,83 +0,0 @@
package id.ac.ubharajaya.sistemakademik.utils
import org.junit.Test
import org.junit.Assert.*
/**
* Unit tests for LocationValidator
*/
class LocationValidatorTest {
@Test
fun testCalculateDistance_SameLocation() {
val distance = LocationValidator.calculateDistance(-7.0, 110.4, -7.0, 110.4)
assertEquals(0.0, distance, 0.1)
}
@Test
fun testCalculateDistance_KnownDistance() {
// Distance between two points should be positive
val distance = LocationValidator.calculateDistance(
-7.0, 110.4,
-7.01, 110.41
)
assertTrue(distance > 0)
// Approximately 1.5 km
assertTrue(distance in 1400.0..1600.0)
}
@Test
fun testIsLocationValid_WithinRadius() {
// Location very close to reference
val isValid = LocationValidator.isLocationValid(-7.0, 110.4, allowedRadius = 100.0)
assertTrue(isValid)
}
@Test
fun testIsLocationValid_OutsideRadius() {
// Location far from reference (more than 100m)
val isValid = LocationValidator.isLocationValid(-7.02, 110.42, allowedRadius = 100.0)
assertFalse(isValid)
}
@Test
fun testGetValidationMessage_Valid() {
val message = LocationValidator.getValidationMessage(-7.0, 110.4, allowedRadius = 100.0)
assertTrue(message.contains(""))
assertTrue(message.contains("valid"))
}
@Test
fun testGetValidationMessage_Invalid() {
val message = LocationValidator.getValidationMessage(-7.02, 110.42, allowedRadius = 100.0)
assertTrue(message.contains(""))
assertTrue(message.contains("valid"))
}
@Test
fun testAdjustCoordinates() {
val (adjustedLat, adjustedLon) = LocationValidator.adjustCoordinates(
-7.0, 110.4,
latOffset = 0.001,
lonOffset = 0.001
)
assertEquals(-6.999, adjustedLat, 0.0001)
assertEquals(110.401, adjustedLon, 0.0001)
}
@Test
fun testDistanceSymmetry() {
val d1 = LocationValidator.calculateDistance(-7.0, 110.4, -7.01, 110.41)
val d2 = LocationValidator.calculateDistance(-7.01, 110.41, -7.0, 110.4)
assertEquals(d1, d2, 0.1)
}
@Test
fun testDistanceTriangleInequality() {
val dAB = LocationValidator.calculateDistance(-7.0, 110.4, -7.01, 110.41)
val dBC = LocationValidator.calculateDistance(-7.01, 110.41, -7.02, 110.42)
val dAC = LocationValidator.calculateDistance(-7.0, 110.4, -7.02, 110.42)
assertTrue(dAC <= dAB + dBC + 1) // +1 for rounding errors
}
}

View File

@ -1,225 +0,0 @@
{
"name": "EAS",
"nodes": [
{
"parameters": {
"method": "POST",
"url": "https://ntfy.ubharajaya.ac.id/EAS",
"sendBody": true,
"contentType": "raw",
"body": "=Absensi: {{ $json.body.nama }} NPM: {{ $json.body.npm }}",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.3,
"position": [
-272,
-240
],
"id": "83504eec-6d20-46d7-9ea1-509ae4ee8660",
"name": "NTFY HTTP Request"
},
{
"parameters": {
"httpMethod": "POST",
"path": "23c6993d-1792-48fb-ad1c-ffc78a3e6254",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2.1,
"position": [
-864,
-112
],
"id": "9ed3d2db-2d50-40b5-8408-7404edd48442",
"name": "Webhook Absensi",
"webhookId": "23c6993d-1792-48fb-ad1c-ffc78a3e6254"
},
{
"parameters": {
"operation": "append",
"documentId": {
"__rl": true,
"value": "1jH15MfnNgpPGuGeid0hYfY7fFUHCEFbCmg8afTyyLZs",
"mode": "id"
},
"sheetName": {
"__rl": true,
"value": "Absensi",
"mode": "name"
},
"columns": {
"mappingMode": "defineBelow",
"value": {
"latitude": "={{ $json.body.latitude }}",
"longitude": "={{ $json.body.longitude }}",
"timestamp": "={{ $json.body.timestamp }}",
"foto_base64": "={{ $json.body.foto_base64 }}",
"nama": "={{ $json.body.nama }}",
"npm": "={{ $json.body.npm }}"
},
"matchingColumns": [],
"schema": [
{
"id": "timestamp",
"displayName": "timestamp",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "npm",
"displayName": "npm",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "nama",
"displayName": "nama",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "latitude",
"displayName": "latitude",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "longitude",
"displayName": "longitude",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "photo",
"displayName": "photo",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "status",
"displayName": "status",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
},
{
"id": "foto_base64",
"displayName": "foto_base64",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true,
"removed": false
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {}
},
"type": "n8n-nodes-base.googleSheets",
"typeVersion": 4.7,
"position": [
-272,
-32
],
"id": "cd83a9fa-ea00-4a20-aa31-846bfe044aeb",
"name": "Append row in sheet",
"credentials": {
"googleSheetsOAuth2Api": {
"id": "hNVNhkTQbqkJ3C56",
"name": "Google Sheets account"
}
}
},
{
"parameters": {
"jsCode": "// Loop over input items and add a new field called 'myNewField' to the JSON of each one\nfor (const item of $input.all()) {\n item.json.myNewField = 1;\n}\n\nreturn $input.all();"
},
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
-528,
-240
],
"id": "4ed9edf6-4562-41b6-afd0-89c96991454a",
"name": "Code in JavaScript"
}
],
"pinData": {},
"connections": {
"Webhook Absensi": {
"main": [
[
{
"node": "Append row in sheet",
"type": "main",
"index": 0
},
{
"node": "Code in JavaScript",
"type": "main",
"index": 0
}
]
]
},
"NTFY HTTP Request": {
"main": [
[]
]
},
"Code in JavaScript": {
"main": [
[
{
"node": "NTFY HTTP Request",
"type": "main",
"index": 0
}
]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1",
"availableInMCP": false
},
"versionId": "49466b31-67ce-49b7-af37-33cd28d7092d",
"meta": {
"templateCredsSetupCompleted": true,
"instanceId": "b8ffac81bb85d267c3296e074b3e692ecef11caeef79fa72af892085548f350a"
},
"id": "E_gxZpNrN3G5ibejHcTFS",
"tags": []
}