# ✅ SPK Mobile - API Integration Complete

## Summary

Semua API services untuk menghubungkan Flutter app dengan Laravel backend **sudah siap digunakan!**

---

## 📦 What's Included

### 1. Complete API Services (6 Services)
✅ **AuthService** - Login, Register, Profile
✅ **KontrakanService** - Listing, Filtering, Recommendations
✅ **BookingService** - Booking Management, Payment Uploads
✅ **LaundryService** - Laundry Listing, Recommendations
✅ **ReviewService** - Add/Update/Delete Reviews (NEW)
✅ **FavoriteService** - Manage Favorites (NEW)

**Location:** `lib/services/`

### 2. Configuration
✅ **App Config** - API Base URL and Settings
**Location:** `lib/config/app_config.dart`

### 3. Documentation (4 Complete Guides)
✅ `API_INTEGRATION_GUIDE.md` - Complete API Reference
✅ `API_QUICKSTART.md` - Quick Examples & Patterns
✅ `API_STATUS.md` - Status & Checklist
✅ `SCREEN_IMPLEMENTATION_CHECKLIST.md` - Screen-by-Screen Guide

### 4. Testing Utility
✅ `test/api_test_helper.dart` - API Test Suite

---

## 🎯 What You Can Do Now

### Use Any Service in Your Screens
```dart
// Example: Get kontrakan list
final service = KontrakanService();
final list = await service.getKontrakan(hargaMax: 1000000);

// Example: Create booking
final bookingService = BookingService();
final result = await bookingService.createBooking(...);

// Example: Add review
final reviewService = ReviewService();
final result = await reviewService.addKontrakanReview(...);
```

### Build Screens with API Integration
All 11 main screens have implementation guides in `SCREEN_IMPLEMENTATION_CHECKLIST.md`

### Test API Connection
Use `APITestHelper` to test all endpoints:
```dart
await APITestHelper.runAllTests(
  testEmail: 'test@example.com',
  testPassword: 'password123',
);
```

---

## 🚀 Quick Start (3 Steps)

### Step 1: Update Base URL
```dart
// File: lib/config/app_config.dart
static const String baseUrl = 'http://192.168.18.16:8000/api';
// Replace IP with your computer's IP (use ipconfig)
```

### Step 2: Load Token on Startup
```dart
// File: lib/main.dart
void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  
  final authService = AuthService();
  await authService.loadToken();
  
  runApp(const MyApp());
}
```

### Step 3: Use Services in Screens
```dart
// Example in your screen
import 'package:spk_mobile/services/kontrakan_service.dart';

final service = KontrakanService();
final data = await service.getKontrakan();
```

---

## 📚 Documentation Structure

```
API Documentation Files:
├── API_INTEGRATION_GUIDE.md          ← Full Reference (all endpoints, error handling)
├── API_QUICKSTART.md                 ← Quick Examples (common use cases)
├── API_STATUS.md                     ← Feature Status & Checklist
├── SCREEN_IMPLEMENTATION_CHECKLIST.md ← How to build each screen
└── test/api_test_helper.dart         ← Test utilities
```

### When to Use Each Guide

| Need | Document |
|------|----------|
| Learn which methods are available | API_INTEGRATION_GUIDE.md |
| See code examples | API_QUICKSTART.md |
| Check implementation status | API_STATUS.md |
| Implement a specific screen | SCREEN_IMPLEMENTATION_CHECKLIST.md |
| Test API connections | test/api_test_helper.dart |

---

## 🔧 Available API Services Summary

### AuthService
```dart
login(email, password)
register({name, email, password, role})
updateProfile({name, phone, address})
logout()
loadToken()
isAuthenticated (property)
currentUser (property)
token (property)
```

### KontrakanService
```dart
getKontrakan({search, hargaMin, hargaMax, jumlahKamar})
getKontrakanById(id)
getGaleri(id)
getReviews(id)
getRecommendations({hargaMin, hargaMax, jarakMax, fasilitas})
```

### BookingService
```dart
getBookingHistory()
getBookingById(id)
createBooking({kontrakanId, tanggalMulai, durasiBulan, paymentProof, catatan})
cancelBooking(id)
extendBooking({bookingId, durationMonths, paymentProof})
uploadPaymentProof(id, file)
```

### LaundryService
```dart
getLaundry({search, hargaMin, hargaMax})
getLaundryById(id)
getGaleri(id)
getReviews(id)
getRecommendations({hargaMin, hargaMax, jarakMax})
```

### ReviewService
```dart
addKontrakanReview({kontrakanId, rating, comment})
addLaundryReview({laundryId, rating, comment})
updateReview({reviewId, rating, comment})
deleteReview(id)
```

### FavoriteService
```dart
getFavorites()
toggleKontrakanFavorite(id)
toggleLaundryFavorite(id)
removeFavorite(id)
isKontrakanFavorite(id)
isLaundryFavorite(id)
```

---

## 📋 Implementation Checklist

### Before Starting Development

- [ ] **Backend Running**: `php artisan serve` in `/spk_kontrakan`
- [ ] **Update Base URL**: Change IP in `lib/config/app_config.dart`
- [ ] **Load Token**: Add `await authService.loadToken()` in `main.dart`
- [ ] **Test Connection**: Run `APITestHelper.runAllTests()`

### Screen Implementation

Use `SCREEN_IMPLEMENTATION_CHECKLIST.md` for each screen:
- [ ] 1. Login Screen
- [ ] 2. Register Screen
- [ ] 3. Kontrakan List
- [ ] 4. Kontrakan Detail
- [ ] 5. Booking
- [ ] 6. Booking History
- [ ] 7. Reviews
- [ ] 8. Favorites
- [ ] 9. Laundry List
- [ ] 10. Recommendations (SAW)
- [ ] 11. Profile

### For Each Screen

- [ ] Import required service(s)
- [ ] Initialize service(s) in class
- [ ] Create `_loadData()` method
- [ ] Call API in `initState()`
- [ ] Handle loading state
- [ ] Handle error state
- [ ] Handle empty state
- [ ] Build UI
- [ ] Add user actions (buttons, navigation)
- [ ] Test all functionality

---

## 💡 Best Practices

### 1. Always Load Token on Startup
```dart
void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await AuthService().loadToken();
  runApp(const MyApp());
}
```

### 2. Handle All Response Cases
```dart
final result = await service.someMethod();

if (result['success']) {
  // Success
} else {
  // Error
  print(result['message']);
  print(result['errors']);
}
```

### 3. Show Loading States
```dart
if (_isLoading) {
  return CircularProgressIndicator();
}
```

### 4. Show Error States
```dart
if (_error != null) {
  return Column(
    children: [
      Text(_error!),
      ElevatedButton(onPressed: _retry, child: Text('Retry')),
    ],
  );
}
```

### 5. Handle Validation Errors
```dart
if (result['errors'] != null) {
  final errors = result['errors'] as Map;
  errors.forEach((field, messages) {
    print('$field: ${messages.join(', ')}');
  });
}
```

---

## 🛠️ Troubleshooting

### "Connection Refused"
**Problem:** Can't connect to API
**Solution:**
1. Check backend is running (`php artisan serve`)
2. Verify base URL is correct (update IP in `app_config.dart`)
3. Check firewall allows port 8000
4. Test with: `APITestHelper.testLoadToken()`

### "Unauthorized 401"
**Problem:** Token is invalid or expired
**Solution:**
1. Login again to get new token
2. Ensure `loadToken()` called on app startup
3. Check backend token expiry settings

### "CORS Error"
**Problem:** Cross-origin request blocked
**Solution:**
Backend already configured. If persists:
- Check `config/cors.php` in backend
- Ensure credentials in request headers

### "File Upload Failed"
**Problem:** Payment proof upload fails
**Solution:**
1. Ensure file path exists
2. Use `image_picker` package
3. Check file permissions
4. Verify file is valid image

---

## 📝 File Locations

### Services
```
lib/services/
├── auth_service.dart        ✅ Ready
├── kontrakan_service.dart   ✅ Ready
├── booking_service.dart     ✅ Ready
├── laundry_service.dart     ✅ Ready
├── review_service.dart      ✅ Ready (NEW)
├── favorite_service.dart    ✅ Ready (NEW)
└── location_service.dart    (Existing)
```

### Configuration
```
lib/config/
└── app_config.dart          ✅ Ready
```

### Documentation
```
Project Root/
├── API_INTEGRATION_GUIDE.md               ✅ New
├── API_QUICKSTART.md                      ✅ New
├── API_STATUS.md                          ✅ New
├── SCREEN_IMPLEMENTATION_CHECKLIST.md     ✅ New
└── README.md                              (Existing)
```

### Tests
```
test/
└── api_test_helper.dart     ✅ New
```

---

## 🎓 Learning Path

1. **Understand the Architecture**
   - Read `API_INTEGRATION_GUIDE.md`
   - Understand service pattern

2. **See Code Examples**
   - Read `API_QUICKSTART.md`
   - Study example implementations

3. **Build Your First Screen**
   - Pick simplest screen (e.g., Login)
   - Follow `SCREEN_IMPLEMENTATION_CHECKLIST.md`
   - Implement step by step

4. **Test the API**
   - Use `APITestHelper`
   - Verify all endpoints work

5. **Build Remaining Screens**
   - Use checklist for each screen
   - Follow same pattern

---

## ✨ What's New

### New Services
- ✅ `ReviewService` - Complete review management
- ✅ `FavoriteService` - Favorite items management

### New Documentation
- ✅ `API_INTEGRATION_GUIDE.md` - Complete reference
- ✅ `API_QUICKSTART.md` - Quick start guide
- ✅ `API_STATUS.md` - Feature status
- ✅ `SCREEN_IMPLEMENTATION_CHECKLIST.md` - Screen guides

### New Testing
- ✅ `test/api_test_helper.dart` - Test utility

---

## 📞 Common Questions

### Q: How do I use an API service?
A: Import it, create instance, call method:
```dart
final service = KontrakanService();
final data = await service.getKontrakan();
```

### Q: How do I handle errors?
A: Check `result['success']` and access `result['message']` and `result['errors']`

### Q: How do I show loading?
A: Use `_isLoading` state and conditionally render `CircularProgressIndicator()`

### Q: How do I navigate after action?
A: Use `Navigator.of(context).pushNamed()` or `pushReplacementNamed()`

### Q: How do I test the API?
A: Use `APITestHelper.runAllTests()` with test email/password

### Q: What if base URL is wrong?
A: Update `AppConfig.baseUrl` in `lib/config/app_config.dart`

### Q: How do I upload files?
A: Use `image_picker` package, pass `File` to service method

### Q: How long is token valid?
A: Check backend settings (usually 24 hours), user must login again

---

## 🎯 Next Actions

### Immediate (Today)
1. [ ] Update base URL in `app_config.dart`
2. [ ] Verify backend is running
3. [ ] Test API with `APITestHelper`

### Short Term (This Sprint)
1. [ ] Implement Login screen
2. [ ] Implement Kontrakan List screen
3. [ ] Implement Booking screen

### Medium Term
1. [ ] Implement remaining main screens
2. [ ] Add state management (Provider/Riverpod)
3. [ ] Add offline support
4. [ ] Add image caching

### Long Term
1. [ ] Performance optimization
2. [ ] Error tracking/logging
3. [ ] Analytics integration
4. [ ] Production deployment

---

## 🎉 You're All Set!

**All API services are ready to use. Start building!**

Questions? Check:
1. `API_INTEGRATION_GUIDE.md` for detailed docs
2. `API_QUICKSTART.md` for code examples
3. `SCREEN_IMPLEMENTATION_CHECKLIST.md` for specific screen

---

**Last Updated:** February 23, 2026
**Status:** ✅ Complete and Ready for Development
