# 🚀 Quick Start Guide - Aplikasi Absensi Akademik

## Instalasi Cepat

### 1️⃣ Clone & Setup Project

```bash
# Clone atau buka project di Android Studio
cd Starter-EAS-2025-2026

# Sync gradle
./gradlew build
```

### 2️⃣ Konfigurasi Campus Location

**File**: `app/src/main/java/id/ac/ubharajaya/sistemakademik/config/AppConfig.kt`

```kotlin
object AppConfig {
    // Ubah sesuai lokasi kampus Anda
    const val CAMPUS_LATITUDE = -6.8961
    const val CAMPUS_LONGITUDE = 107.6100
    const val ATTENDANCE_RADIUS_METERS = 100f  // Radius validasi (meter)
}
```

### 3️⃣ Konfigurasi N8n Webhook

```kotlin
// Gunakan salah satu:
const val USE_WEBHOOK = N8N_WEBHOOK_PROD    // Production
// const val USE_WEBHOOK = N8N_WEBHOOK_TEST  // Testing
```

### 4️⃣ Build & Run

```bash
# Option 1: Via Android Studio
- Buka project di Android Studio
- Click "Run" atau Shift+F10
- Pilih emulator/device

# Option 2: Via Terminal
./gradlew installDebug
```

## 🔍 Testing Checklist

### Scenario 1: Login & Attendance Success
```
1. Launch app
2. Input NPM: "12345678"
3. Input Nama: "John Doe"
4. Click "Login"
   ✓ Should navigate to attendance screen
5. Wait for location (check GPS enabled)
   ✓ Coordinates should display
   ✓ Status should show "Berada dalam area absensi" (green)
6. Click "Ambil Foto"
   ✓ Camera should open
   ✓ Take photo
   ✓ Status should show "✓ Foto berhasil diambil"
7. Click "Kirim Absensi"
   ✓ Should show "⏳ Mengirim absensi..."
   ✓ After success: "✓ Absensi berhasil dikirim!"
8. Click "Lihat Riwayat"
   ✓ Should show attendance record in list
9. Click back, then "Logout"
   ✓ Should return to login screen
```

### Scenario 2: Location Outside Radius
```
1. After login and location loaded
2. Check if distance shows > 100m
   ✓ Status should show "✗ Berada di luar area absensi" (red)
   ✓ "Kirim Absensi" button should be disabled
3. Try clicking submit
   ✓ Should show error: "⚠️ Lokasi Anda berada di luar area absensi"
```

### Scenario 3: Missing Photo
```
1. At attendance screen with valid location
2. DON'T click "Ambil Foto"
3. Try clicking "Kirim Absensi"
   ✓ Should show error: "⚠️ Harap ambil foto terlebih dahulu"
```

### Scenario 4: Permission Denial
```
1. When location permission requested
2. Click "Deny"
   ✓ Should show toast: "Izin lokasi ditolak"
   ✓ Lokasi akan tetap menampilkan "-"

1. When camera permission requested
2. Click "Deny"
   ✓ Should show toast: "Izin kamera ditolak"
```

## 📱 Device Requirements

| Requirement | Min | Target |
|------------|-----|--------|
| SDK Version | 28 | 36 |
| RAM | 2GB | 4GB+ |
| Storage | 100MB | 500MB+ |
| Android | 9.0 | 13+ |
| GPS | Required | - |
| Camera | Required | - |

## 🐛 Troubleshooting

### Location tidak muncul
```
❌ Problem: "Lokasi tidak tersedia"
✅ Solution:
   1. Buka device settings → Location → ON
   2. Beri izin akses lokasi ke app
   3. Tunggu beberapa saat GPS acquire signal
   4. Click "Perbarui Lokasi" button

Tip: Gunakan emulator dengan:
- Google Play Services installed
- Location simulation enabled
- Set location di Extended Controls
```

### Kamera error
```
❌ Problem: Camera tidak membuka
✅ Solution:
   1. Buka device settings → Apps → Permissions
   2. Berikan izin CAMERA
   3. Restart app
   4. Try "Ambil Foto" again
```

### N8n Webhook timeout
```
❌ Problem: "✗ Gagal: timeout"
✅ Solution:
   1. Cek internet connection
   2. Pastikan URL di AppConfig.kt benar
   3. Test webhook di: https://ntfy.ubharajaya.ac.id/EAS
   4. Check N8n workflow status
```

### Database error
```
❌ Problem: "Error inserting attendance"
✅ Solution:
   1. Clear app data:
      - Settings → Apps → [App Name] → Storage → Clear Data
   2. Restart app
   3. Try again
```

## 📊 Monitoring & Debugging

### View Attendance Logs
- **Database**: Inspect via Android Studio Device Explorer
  - `/data/data/id.ac.ubharajaya.sistemakademik/databases/attendance_database`

- **Webhook**: Monitor at https://ntfy.ubharajaya.ac.id/EAS

- **Spreadsheet**: https://docs.google.com/spreadsheets/d/1jH15MfnNgpPGuGeid0hYfY7fFUHCEFbCmg8afTyyLZs/

### Logcat Monitoring
```bash
# View all logs
adb logcat

# Filter by app package
adb logcat | grep "sistemakademik"

# View errors only
adb logcat | grep "ERROR\|Exception"
```

## 🔧 Configuration Tips

### Mengubah Radius Validasi

```kotlin
// AppConfig.kt
const val ATTENDANCE_RADIUS_METERS = 50f   // Lebih ketat (50m)
const val ATTENDANCE_RADIUS_METERS = 200f  // Lebih longgar (200m)
```

### Mengubah Kualitas Foto

```kotlin
// AppConfig.kt
const val PHOTO_COMPRESS_QUALITY = 50   // Lebih ringan
const val PHOTO_COMPRESS_QUALITY = 100  // Kualitas maksimal
```

### Switch ke Testing Webhook

```kotlin
// AppConfig.kt
const val USE_WEBHOOK = N8N_WEBHOOK_TEST  // Uncomment ini
```

## 📚 Architecture Overview

```
┌─────────────────────────────────────────────┐
│           PRESENTATION LAYER                │
│  (Composables: Screens, ViewModels)         │
└─────────────────┬───────────────────────────┘
                  │
┌─────────────────▼───────────────────────────┐
│           DOMAIN LAYER                      │
│  (Use Cases: LocationValidator)             │
└─────────────────┬───────────────────────────┘
                  │
┌─────────────────▼───────────────────────────┐
│           DATA LAYER                        │
│  (Repository, Database, Preferences)        │
│  - Room (Local DB)                          │
│  - DataStore (User Session)                 │
│  - N8n Webhook (Remote API)                 │
└─────────────────────────────────────────────┘
```

## 🎯 Key Features

| Feature | Status | Details |
|---------|--------|---------|
| Login | ✅ | NPM + Nama validation |
| GPS Location | ✅ | Fused Location Provider |
| Radius Validation | ✅ | 100m default radius |
| Photo Capture | ✅ | Camera Intent |
| N8n Integration | ✅ | Base64 encoded image |
| History | ✅ | Room database |
| Session Management | ✅ | DataStore preferences |

## 📞 Support Resources

| Resource | Link |
|----------|------|
| Webhook Test | https://ntfy.ubharajaya.ac.id/EAS |
| Attendance Spreadsheet | https://docs.google.com/spreadsheets/ |
| N8n Webhook Prod | https://n8n.lab.ubharajaya.ac.id/webhook/... |
| N8n Webhook Test | https://n8n.lab.ubharajaya.ac.id/webhook-test/... |

## 💡 Pro Tips

1. **Testing dengan Multiple Devices**: Test dengan emulator di lokasi berbeda
2. **Mock Location**: Gunakan GPS Emulator app untuk testing location
3. **Network Throttling**: Test di Android Studio dengan slow connection
4. **Database Inspector**: Monitor Room database real-time
5. **Logcat Filtering**: Gunakan grep untuk focused debugging

---

**Happy Testing! 🎉**

Untuk detailed documentation, lihat `IMPLEMENTATION_GUIDE.md`