# 📂 PROJECT STRUCTURE & FILE OVERVIEW

## Complete Project Structure

```
Starter-EAS-2025-2026/
│
├── 📄 README.md (Project description)
├── 📄 Mockup.png (UI mockup image)
├── 📄 n8n-workflow-EAS.json (Webhook configuration)
│
├── 📋 DEVELOPMENT_GUIDE.md ✨ (User & developer guide)
├── 📋 CHANGELOG.md ✨ (Version history & changes)
├── 📋 IMPLEMENTATION_NOTES.md ✨ (Technical config)
├── 📋 IMPLEMENTATION_SUMMARY.md ✨ (Project summary)
├── 📋 QUICK_REFERENCE.md ✨ (Quick lookup)
│
├── 🔧 build.gradle.kts (Project-level build config)
├── 🔧 settings.gradle.kts (Project settings)
├── 🔧 gradle.properties (Gradle properties)
├── 📜 gradlew & gradlew.bat (Gradle wrappers)
├── 📄 local.properties (Local SDK configuration)
│
├── gradle/
│   ├── wrapper/
│   │   ├── gradle-wrapper.jar
│   │   └── gradle-wrapper.properties
│   └── libs.versions.toml (Dependency versions)
│
└── app/
    ├── 🔧 build.gradle.kts ✨ (App-level build config)
    ├── 📄 proguard-rules.pro (Proguard configuration)
    │
    ├── src/
    │   ├── main/
    │   │   ├── 📄 AndroidManifest.xml ✨ (App manifest & permissions)
    │   │   │
    │   │   ├── java/
    │   │   │   └── id/ac/ubharajaya/sistemakademik/
    │   │   │       ├── 📄 MainActivity.kt ✨ (Main app file)
    │   │   │       │   ├── Util Functions
    │   │   │       │   │   ├── bitmapToBase64()
    │   │   │       │   │   ├── obfuscateCoordinates()
    │   │   │       │   │   ├── calculateDistance()
    │   │   │       │   │   └── isWithinAbsensiRadius()
    │   │   │       │   │
    │   │   │       │   ├── MainActivity Class
    │   │   │       │   │   ├── onCreate()
    │   │   │       │   │   └── Navigation Logic
    │   │   │       │   │
    │   │   │       │   ├── kirimKeN8n() ✨ (Webhook function)
    │   │   │       │   │
    │   │   │       │   ├── @Composables
    │   │   │       │   │   ├── LoginScreen()
    │   │   │       │   │   ├── RegisterScreen()
    │   │   │       │   │   ├── AbsensiScreen() ✨
    │   │   │       │   │   ├── HistoryScreen() ✨
    │   │   │       │   │   └── AttendanceCard() ✨
    │   │   │       │
    │   │   │       └── 📄 DatabaseHelper.kt ✨ (Database management)
    │   │   │           ├── onCreate() - Create tables
    │   │   │           ├── onUpgrade() - DB migration
    │   │   │           │
    │   │   │           ├── User Functions
    │   │   │           │   ├── addUser()
    │   │   │           │   ├── checkUser()
    │   │   │           │   └── getUserName()
    │   │   │           │
    │   │   │           ├── Attendance Functions ✨
    │   │   │           │   ├── addAttendanceRecord()
    │   │   │           │   └── getAttendanceHistory()
    │   │   │           │
    │   │   │           ├── Database Schema
    │   │   │           │   ├── TABLE_USERS
    │   │   │           │   └── TABLE_ATTENDANCE ✨
    │   │   │           │
    │   │   │           └── AttendanceRecord Data Class ✨
    │   │   │
    │   │   ├── res/
    │   │   │   ├── drawable/ (App icons & images)
    │   │   │   ├── layout/ (XML layouts)
    │   │   │   ├── values/
    │   │   │   │   ├── colors.xml (App color scheme)
    │   │   │   │   ├── strings.xml (String resources)
    │   │   │   │   ├── themes.xml (App theme)
    │   │   │   │   └── other configurations
    │   │   │   ├── xml/
    │   │   │   │   ├── backup_rules.xml
    │   │   │   │   └── data_extraction_rules.xml
    │   │   │   └── ...other resources
    │   │   │
    │   │   └── ui/
    │   │       └── theme/
    │   │           ├── Color.kt
    │   │           ├── Theme.kt
    │   │           └── Type.kt
    │   │
    │   ├── androidTest/ (UI/Integration tests - empty)
    │   └── test/ (Unit tests - empty)
    │
    └── build/ (Generated - ignore)
        ├── generated/
        ├── intermediates/
        └── outputs/

Legend:
✨ = Modified or new in v1.1.0
📄 = Source code file
🔧 = Configuration file
📋 = Documentation file
📜 = Build script file
```

---

## 📊 Code Statistics

### Modified Files Summary

#### MainActivity.kt
```
Total Lines: 611
Added: ~350 lines (57%)
Components:
  - 4 Utility functions (new)
  - 5 @Composable screens (1 new + 1 enhanced)
  - 1 Data class reference
  - 50+ state management vars
  - 3 activity lifecycle methods
```

#### DatabaseHelper.kt
```
Total Lines: 133
Added: ~65 lines (49%)
Components:
  - 2 Database tables (1 new)
  - 6 Database functions (2 new)
  - 1 Data class (new)
  - 2 Database migration handlers
```

#### build.gradle.kts
```
Total Lines: 66
Added: 1 dependency line (2%)
Components:
  - 14 total dependencies
  - 1 new: material-icons-extended
```

---

## 🗂️ File Categories

### Core Application Files
- `MainActivity.kt` - Main app logic & UI
- `DatabaseHelper.kt` - Database operations
- `AndroidManifest.xml` - App configuration & permissions

### Build & Configuration Files
- `build.gradle.kts` (app & project level)
- `settings.gradle.kts`
- `gradle.properties`
- `local.properties`
- `gradle/libs.versions.toml`

### Resource Files
- `res/values/*.xml` - Colors, strings, themes
- `res/drawable/` - Icons & images
- `res/layout/` - XML layouts (if any)
- `res/xml/` - Backup & data extraction rules

### Documentation Files (NEW)
- `DEVELOPMENT_GUIDE.md` - 650+ lines
- `CHANGELOG.md` - 400+ lines
- `IMPLEMENTATION_NOTES.md` - 500+ lines
- `IMPLEMENTATION_SUMMARY.md` - 400+ lines
- `QUICK_REFERENCE.md` - 300+ lines
- `PROJECT_STRUCTURE.md` - This file

---

## 📦 Dependency Tree

```
App Dependencies:
├── Kotlin & Android Core
│   ├── androidx.core:core-ktx
│   ├── androidx.lifecycle:lifecycle-runtime-ktx
│   └── androidx.activity:activity-compose
│
├── Compose Framework
│   ├── androidx.compose.ui:ui
│   ├── androidx.compose.ui:ui-graphics
│   ├── androidx.compose.ui:ui-tooling-preview
│   ├── androidx.compose.material3:material3
│   ├── androidx.compose.material:material-icons-extended ✨
│   └── platform(androidx.compose.bom)
│
├── Google Services
│   └── com.google.android.gms:play-services-location
│
└── Testing (included but not used)
    ├── junit
    ├── androidx.test.ext:junit
    └── androidx.test.espresso:espresso-core
```

---

## 🔄 Data Flow Through Files

```
USER INPUT
    ↓
MainActivity.kt
├─ LoginScreen() / RegisterScreen() → DatabaseHelper.addUser(), checkUser()
└─ AbsensiScreen()
   ├─ Location API → calculateDistance(), isWithinAbsensiRadius()
   ├─ Camera Intent → bitmapToBase64()
   ├─ kirimKeN8n() 
   │  ├─ DatabaseHelper.addAttendanceRecord()
   │  └─ Webhook POST
   └─ HistoryScreen()
      └─ DatabaseHelper.getAttendanceHistory()
           └─ AttendanceCard() display
```

---

## 💾 Database Schema Location

```
DatabaseHelper.kt:

Tables Definition (onCreate):
├── users
│   ├── id (INT PRIMARY KEY AUTOINCREMENT)
│   ├── username (TEXT)
│   ├── npm (TEXT UNIQUE)
│   └── password (TEXT)
│
└── attendance ✨
    ├── id (INT PRIMARY KEY AUTOINCREMENT)
    ├── npm (TEXT FOREIGN KEY)
    ├── timestamp (INT)
    ├── latitude (REAL)
    ├── longitude (REAL)
    └── status (TEXT)

Query Methods:
├── addAttendanceRecord() - INSERT
└── getAttendanceHistory() - SELECT with ORDER BY
```

---

## 🎯 Code Organization Principles

### Separation of Concerns
```
UI Layer (Composables)
    ↓
Business Logic Layer (Functions)
    ↓
Data Access Layer (DatabaseHelper)
    ↓
Data Layer (SQLite Database)
```

### Module Organization
```
MainActivity.kt:
├── UTIL SECTION (Helper functions)
├── ACTIVITY SECTION (Main activity)
├── SCREEN SECTIONS (UI composables)
└── COMPONENT SECTIONS (Reusable components)

DatabaseHelper.kt:
├── COMPANION CONSTANTS
├── DATABASE SCHEMA (onCreate)
├── MIGRATION LOGIC (onUpgrade)
├── USER OPERATIONS
├── ATTENDANCE OPERATIONS ✨
└── DATA CLASSES
```

---

## 🔐 Permissions Configuration

### AndroidManifest.xml
```xml
<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" />
```

### Runtime Request (in MainActivity.kt)
```kotlin
rememberLauncherForActivityResult(ActivityResultContracts.RequestPermission())
├── ACCESS_FINE_LOCATION
└── CAMERA
```

---

## 📱 Screen Navigation Structure

### Navigation State Machine
```
MainActivity.onCreate()
├─ setContent {
│  ├─ currentScreen: String
│  │  ├── "login" → LoginScreen()
│  │  ├── "register" → RegisterScreen()
│  │  ├── "home" → AbsensiScreen()
│  │  └── "history" → HistoryScreen()
│  │
│  └─ Navigation Callbacks
│     ├─ onLoginSuccess()
│     ├─ onNavigateToRegister()
│     ├─ onLogout()
│     └─ onNavigateToHistory() ✨
```

---

## ✨ New Features by File

### MainActivity.kt Additions
```
UTIL FUNCTIONS:
├── obfuscateCoordinates() ✨
├── calculateDistance() ✨
└── isWithinAbsensiRadius() ✨

UPDATED FUNCTIONS:
├── kirimKeN8n() - with validation ✨
├── AbsensiScreen() - new params ✨
└── onCreate() - new navigation ✨

NEW SCREENS:
├── HistoryScreen() ✨
└── AttendanceCard() ✨
```

### DatabaseHelper.kt Additions
```
DATABASE:
├── TABLE_ATTENDANCE ✨
├── DATABASE_VERSION → 2 ✨
└── onUpgrade() migration ✨

FUNCTIONS:
├── addAttendanceRecord() ✨
└── getAttendanceHistory() ✨

DATA CLASSES:
└── AttendanceRecord ✨
```

### build.gradle.kts Additions
```
DEPENDENCIES:
└── material-icons-extended:1.6.0 ✨
```

---

## 📊 Lines of Code Summary

| Component | Lines | Status |
|-----------|-------|--------|
| MainActivity.kt | 611 | Modified |
| DatabaseHelper.kt | 133 | Modified |
| build.gradle.kts | 66 | Modified |
| AndroidManifest.xml | 35 | Unchanged |
| Total Code | 845 | - |
| Documentation | 2,200+ | New |

---

## 🔍 File Cross-References

### Key Relationships
```
MainActivity.kt
├─ imports DatabaseHelper
├─ imports Material Design 3
├─ uses Compose Foundation
└─ calls Google Location Services

DatabaseHelper.kt
├─ extends SQLiteOpenHelper
├─ defines AttendanceRecord
└─ no external dependencies

build.gradle.kts
├─ imports from gradle/libs.versions.toml
├─ configures app namespace
└─ defines all dependencies

AndroidManifest.xml
├─ declares MainActivity
├─ lists all permissions
└─ sets app theme & icon
```

---

## 🎬 Execution Flow

```
APP STARTUP
└─ MainActivity.onCreate()
   ├─ DatabaseHelper initialized
   ├─ UI composed with Jetpack Compose
   ├─ Navigation state set to "login"
   └─ User sees LoginScreen()

USER LOGIN
└─ LoginScreen() button click
   ├─ DatabaseHelper.checkUser()
   ├─ If valid:
   │  ├─ Set navigationState = "home"
   │  └─ Show AbsensiScreen()
   └─ If invalid:
      └─ Show Toast error

USER ABSENSI
└─ AbsensiScreen() "Kirim Absensi" button
   ├─ Validate inputs (location, photo)
   ├─ kirimKeN8n() called
   │  ├─ Validate radius: isWithinAbsensiRadius()
   │  ├─ Save locally: DatabaseHelper.addAttendanceRecord()
   │  ├─ Send to webhook via HTTPS POST
   │  └─ Show feedback Toast
   └─ Data now in database

USER HISTORY
└─ AbsensiScreen() "Lihat Riwayat" button
   ├─ Set navigationState = "history"
   ├─ HistoryScreen() loads
   │  ├─ Call DatabaseHelper.getAttendanceHistory()
   │  ├─ Map to List<AttendanceRecord>
   │  └─ Render AttendanceCard() items
   └─ User sees list with status
```

---

**Last Updated**: 14 January 2026
**Version**: 1.1.0
**Status**: ✅ Complete & Documented