# 🚀 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