.idea/inspectionProfiles/Project_Default.xml

@@ -1,50 +0,0 @@
-<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>

.kotlin/errors/errors-1768292897859.log

@@ -1,4 +0,0 @@
-kotlin version: 2.0.21
-error message: The daemon has terminated unexpectedly on startup attempt #1 with error code: 0. The daemon process output:
-    1. Kotlin compile daemon is ready
-

README.md

@@ -1,14 +1,3 @@
-📱 README UAS - Aplikasi Absensi Akademik Berbasis Koordinat dan Foto
-Nama: Muhammad Yusron Amrullah
-Pemograman Perangkat Bergerak Dibuat: 14 Januari 2026
-Status: ✅ Project Dikembangkan (Bukan Dibuat Ulang)
-Tujuan: Tugas Project Akhir Mata Kuliah Pemrograman Mobile
-Pengerjaan ini dibantu dengan ai 
-
-
-🎯 Ringkasan Proyek
-Proyek ini adalah pengembangan dari Starter Project yang sudah disediakan, bukan membuat dari awal. Kami mengambil codebase yang ada dan mengembangkannya dengan fitur-fitur baru, perbaikan bug, dan peningkatan UI/UX.
-
 # 📱 Aplikasi Absensi Akademik Berbasis Koordinat dan Foto (Mobile)
 
 ## 📌 Deskripsi Proyek

app/src/main/java/id/ac/ubharajaya/sistemakademik/MainActivity.kt

@@ -5,7 +5,6 @@ import android.app.Activity
 import android.content.Intent
 import android.content.pm.PackageManager
 import android.graphics.Bitmap
-import android.location.Location
 import android.os.Bundle
 import android.provider.MediaStore
 import android.util.Base64
@@ -15,15 +14,12 @@ import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.activity.result.contract.ActivityResultContracts
-import androidx.compose.animation.AnimatedVisibility
-import androidx.compose.animation.core.Spring
-import androidx.compose.animation.core.spring
-import androidx.compose.animation.fadeIn
-import androidx.compose.animation.slideInVertically
 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.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.Icons
@@ -33,88 +29,71 @@ import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
-import androidx.compose.ui.geometry.Offset
-import androidx.compose.ui.graphics.Brush
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.asImageBitmap
-import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.core.content.ContextCompat
+import androidx.core.app.ActivityCompat
+import androidx.navigation.NavController
+import androidx.navigation.NavType
+import androidx.navigation.compose.NavHost
+import androidx.navigation.compose.composable
+import androidx.navigation.compose.rememberNavController
+import androidx.navigation.navArgument
 import com.google.android.gms.location.LocationServices
 import com.google.android.gms.location.Priority
 import id.ac.ubharajaya.sistemakademik.ui.theme.SistemAkademikTheme
-import kotlinx.coroutines.delay
+import org.json.JSONArray
 import org.json.JSONObject
 import java.io.ByteArrayOutputStream
 import java.net.HttpURLConnection
 import java.net.URL
+import java.text.SimpleDateFormat
+import java.util.*
 import kotlin.concurrent.thread
+import kotlin.math.atan2
+import kotlin.math.cos
+import kotlin.math.sin
+import kotlin.math.sqrt
 
-/* ================= KONFIGURASI LOKASI ================= */
+/* ================= DATA CLASS ================= */
+data class AttendanceRecord(val timestamp: Long, val status: String)
 
-const val KAMPUS_LAT = -6.222967558410948
-const val KAMPUS_LON = 107.00931291609834
-const val MAX_RADIUS = 50 // meter
-
-fun hitungJarak(lat1: Double, lon1: Double, lat2: Double, lon2: Double): Float {
-    val hasil = FloatArray(1)
-    Location.distanceBetween(lat1, lon1, lat2, lon2, hasil)
-    return hasil[0]
-}
-
-/* ================= UTIL ================= */
+/* ================= UTILS ================= */
 
 fun bitmapToBase64(bitmap: Bitmap): String {
     val outputStream = ByteArrayOutputStream()
-    bitmap.compress(Bitmap.CompressFormat.JPEG, 80, outputStream)
+    bitmap.compress(Bitmap.CompressFormat.JPEG, 70, outputStream)
     return Base64.encodeToString(outputStream.toByteArray(), Base64.NO_WRAP)
 }
 
-fun kirimKeN8n(
-    context: ComponentActivity, npm: String, nama: String, mataKuliah: String,
-    latitude: Double, longitude: Double, foto: Bitmap, status: String,
-    onFinished: () -> Unit
-) {
-    thread {
-        try {
-            val url = URL("https://n8n.lab.ubharajaya.ac.id/webhook/23c6993d-1792-48fb-ad1c-ffc78a3e6254")
-            val conn = url.openConnection() as HttpURLConnection
-            conn.requestMethod = "POST"
-            conn.setRequestProperty("Content-Type", "application/json")
-            conn.doOutput = true
-            val json = JSONObject().apply {
-                put("npm", npm); put("nama", nama); put("mata_kuliah", mataKuliah)
-                put("latitude", latitude); put("longitude", longitude)
-                put("timestamp", System.currentTimeMillis()); put("status", status)
-                put("foto_base64", bitmapToBase64(foto))
-            }
-            conn.outputStream.use { it.write(json.toString().toByteArray()) }
-            val responseCode = conn.responseCode
-            context.runOnUiThread {
-                Toast.makeText(
-                    context,
-                    if (responseCode == 200) "Absensi $status berhasil dikirim" else "Server menolak absensi",
-                    Toast.LENGTH_SHORT
-                ).show()
-            }
-            conn.disconnect()
-        } catch (_: Exception) {
-            context.runOnUiThread {
-                Toast.makeText(context, "Gagal kirim ke server", Toast.LENGTH_SHORT).show()
-            }
-        } finally {
-            context.runOnUiThread(onFinished)
-        }
+object LocationUtils {
+    private const val KAMPUS_LATITUDE = -6.2576
+    private const val KAMPUS_LONGITUDE = 106.9746
+    private const val MAX_RADIUS_METERS = 100.0 // Radius 100 meter
+
+    fun isWithinCampusRadius(lat: Double, lon: Double): Boolean {
+        val earthRadius = 6371000.0 // in meters
+        val dLat = Math.toRadians(lat - KAMPUS_LATITUDE)
+        val dLon = Math.toRadians(lon - KAMPUS_LONGITUDE)
+        val lat1 = Math.toRadians(KAMPUS_LATITUDE)
+        val lat2 = Math.toRadians(lat)
+
+        val a = sin(dLat / 2) * sin(dLat / 2) +
+                sin(dLon / 2) * sin(dLon / 2) * cos(lat1) * cos(lat2)
+        val c = 2 * atan2(sqrt(a), sqrt(1 - a))
+
+        return (earthRadius * c) <= MAX_RADIUS_METERS
     }
 }
 
-/* ================= ACTIVITY ================= */
-/* ================= ACTIVITY ================= */
+
+/* ================= MAIN ACTIVITY ================= */
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -122,229 +101,506 @@ class MainActivity : ComponentActivity() {
         enableEdgeToEdge()
         setContent {
             SistemAkademikTheme {
-                AbsensiScreen(activity = this)
+                AppNavigation(activity = this)
             }
         }
     }
 }
 
-/* ================= UI UTAMA ================= */
+/* ================= NAVIGATION ================= */
 
 @Composable
-fun AbsensiScreen(activity: ComponentActivity) {
-    val context = LocalContext.current
+fun AppNavigation(activity: ComponentActivity) {
+    val navController = rememberNavController()
 
-    // States
+    NavHost(navController = navController, startDestination = "login") {
+        composable("login") {
+            LoginScreen(navController = navController)
+        }
+
+        composable(
+            route = "menu/{npm}/{nama}",
+            arguments = listOf(
+                navArgument("npm") { type = NavType.StringType },
+                navArgument("nama") { type = NavType.StringType }
+            )
+        ) { backStackEntry ->
+            val npm = backStackEntry.arguments?.getString("npm") ?: "N/A"
+            val nama = backStackEntry.arguments?.getString("nama") ?: "N/A"
+            MenuScreen(navController = navController, npm = npm, nama = nama)
+        }
+
+        composable(
+            route = "absensi/{npm}/{nama}",
+            arguments = listOf(
+                navArgument("npm") { type = NavType.StringType },
+                navArgument("nama") { type = NavType.StringType }
+            )
+        ) { backStackEntry ->
+            val npm = backStackEntry.arguments?.getString("npm") ?: "N/A"
+            val nama = backStackEntry.arguments?.getString("nama") ?: "N/A"
+            AbsensiScreen(
+                activity = activity,
+                navController = navController,
+                npm = npm,
+                nama = nama
+            )
+        }
+
+        composable(
+            route = "history/{npm}",
+            arguments = listOf(navArgument("npm") { type = NavType.StringType })
+        ) { backStackEntry ->
+            val npm = backStackEntry.arguments?.getString("npm") ?: "N/A"
+            HistoryScreen(navController = navController, npm = npm, activity = activity)
+        }
+    }
+}
+
+/* ================= UI SCREENS ================= */
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun LoginScreen(navController: NavController) {
     var npm by remember { mutableStateOf("") }
     var nama by remember { mutableStateOf("") }
-    var mataKuliah by remember { mutableStateOf("") }
-    var lokasi by remember { mutableStateOf<String?>(null) }
-    var latitude by remember { mutableStateOf<Double?>(null) }
-    var longitude by remember { mutableStateOf<Double?>(null) }
+
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = { Text("Login Absensi", color = Color.White, fontSize = 18.sp) },
+                colors = TopAppBarDefaults.centerAlignedTopAppBarColors(containerColor = Color(0xFF2E7D32))
+            )
+        }
+    ) { innerPadding ->
+        Column(
+            modifier = Modifier
+                .padding(innerPadding)
+                .fillMaxSize()
+                .background(Color(0xFFF8FBF8))
+                .padding(horizontal = 32.dp),
+            verticalArrangement = Arrangement.Center,
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Icon(Icons.Default.Person, contentDescription = null, modifier = Modifier.size(100.dp), tint = Color(0xFF2E7D32))
+            Spacer(modifier = Modifier.height(40.dp))
+
+            OutlinedTextField(
+                value = npm,
+                onValueChange = { npm = it },
+                label = { Text("NPM") },
+                singleLine = true,
+                keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number, imeAction = ImeAction.Next),
+                modifier = Modifier.fillMaxWidth()
+            )
+            Spacer(modifier = Modifier.height(16.dp))
+
+            OutlinedTextField(
+                value = nama,
+                onValueChange = { nama = it },
+                label = { Text("Nama Lengkap") },
+                singleLine = true,
+                keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done),
+                modifier = Modifier.fillMaxWidth()
+            )
+            Spacer(modifier = Modifier.height(24.dp))
+
+            Button(
+                onClick = {
+                    if (npm.isNotBlank() && nama.isNotBlank()) {
+                        navController.navigate("menu/$npm/$nama")
+                    }
+                },
+                modifier = Modifier.fillMaxWidth().height(50.dp),
+                enabled = npm.isNotBlank() && nama.isNotBlank(),
+                colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1B5E20)),
+                shape = RoundedCornerShape(10.dp)
+            ) {
+                Text("LOGIN", fontWeight = FontWeight.Bold, color = Color.White)
+            }
+        }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun MenuScreen(navController: NavController, npm: String, nama: String) {
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = { Text("Menu Utama", color = Color.White, fontSize = 18.sp) },
+                colors = TopAppBarDefaults.centerAlignedTopAppBarColors(containerColor = Color(0xFF2E7D32)),
+                navigationIcon = {
+                    IconButton(onClick = { navController.popBackStack() }) {
+                        Icon(Icons.Default.ArrowBack, contentDescription = "Logout", tint = Color.White)
+                    }
+                }
+            )
+        }
+    ) { innerPadding ->
+        Column(
+            modifier = Modifier
+                .padding(innerPadding)
+                .fillMaxSize()
+                .background(Color(0xFFF8FBF8))
+                .padding(16.dp),
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Text("Selamat Datang,", style = MaterialTheme.typography.bodyLarge)
+            Text("$nama ($npm)", fontWeight = FontWeight.Bold, fontSize = 20.sp)
+            Spacer(modifier = Modifier.height(32.dp))
+
+            // Tombol Absensi
+            Button(
+                onClick = { navController.navigate("absensi/$npm/$nama") },
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(60.dp),
+                shape = RoundedCornerShape(12.dp)
+            ) {
+                Icon(Icons.Filled.CameraAlt, contentDescription = null, modifier = Modifier.size(24.dp))
+                Spacer(modifier = Modifier.width(8.dp))
+                Text("Absen Kehadiran", fontSize = 16.sp)
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            // Tombol Riwayat
+            Button(
+                onClick = { navController.navigate("history/$npm") },
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(60.dp),
+                shape = RoundedCornerShape(12.dp)
+            ) {
+                Icon(Icons.Default.History, contentDescription = null, modifier = Modifier.size(24.dp))
+                Spacer(modifier = Modifier.width(8.dp))
+                Text("Riwayat Absensi", fontSize = 16.sp)
+            }
+        }
+    }
+}
+
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun AbsensiScreen(activity: ComponentActivity, navController: NavController, npm: String, nama: String) {
+    val context = LocalContext.current
+
+    var lokasiStatus by remember { mutableStateOf("Mengecek Lokasi...") }
+    var locationAvailable by remember { mutableStateOf(false) }
     var foto by remember { mutableStateOf<Bitmap?>(null) }
     var isUploading by remember { mutableStateOf(false) }
-    var isFetchingLocation by remember { mutableStateOf(false) }
+    var latitude by remember { mutableStateOf<Double?>(null) }
+    var longitude by remember { mutableStateOf<Double?>(null) }
+    var matakuliah by remember { mutableStateOf("") }
 
     val fusedLocationClient = remember { LocationServices.getFusedLocationProviderClient(context) }
 
-    fun requestLocationUpdate() {
-        if (ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
-            lokasi = "Izin lokasi belum diberikan."
-            return
-        }
-        isFetchingLocation = true
-        lokasi = "Mencari lokasi..."
-        fusedLocationClient.getCurrentLocation(Priority.PRIORITY_HIGH_ACCURACY, null)
-            .addOnSuccessListener { location: Location? ->
-                if (location != null) {
-                    latitude = location.latitude
-                    longitude = location.longitude
-                    lokasi = "Lat: ${String.format("%.6f", location.latitude)}\nLon: ${String.format("%.6f", location.longitude)}"
-                } else {
-                    lokasi = "Gagal mendapatkan lokasi. Coba lagi."
-                }
-                isFetchingLocation = false
-            }
-            .addOnFailureListener {
-                lokasi = "Gagal mendapatkan lokasi. Coba lagi."
-                isFetchingLocation = false
-            }
-    }
-
-    val locationPermissionLauncher = rememberLauncherForActivityResult(ActivityResultContracts.RequestPermission()) { granted ->
-        if (granted) requestLocationUpdate() else {
-            Toast.makeText(context, "Izin lokasi ditolak", Toast.LENGTH_SHORT).show()
-            lokasi = "Izin lokasi ditolak."
-        }
-    }
-
-    val cameraLauncher = rememberLauncherForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
+    val cameraLauncher = rememberLauncherForActivityResult(
+        ActivityResultContracts.StartActivityForResult()
+    ) { result ->
         if (result.resultCode == Activity.RESULT_OK) {
             val bitmap = result.data?.extras?.get("data") as? Bitmap
-            if (bitmap != null) foto = bitmap else Toast.makeText(context, "Gagal mengambil foto", Toast.LENGTH_SHORT).show()
+            if (bitmap != null) foto = bitmap
         }
     }
 
-    val cameraPermissionLauncher = rememberLauncherForActivityResult(ActivityResultContracts.RequestPermission()) { granted ->
-        if (granted) cameraLauncher.launch(Intent(MediaStore.ACTION_IMAGE_CAPTURE))
-        else Toast.makeText(context, "Izin kamera ditolak", Toast.LENGTH_SHORT).show()
+    val requestPermissionLauncher = rememberLauncherForActivityResult(
+        ActivityResultContracts.RequestMultiplePermissions()
+    ) { permissions ->
+        if (permissions[Manifest.permission.ACCESS_FINE_LOCATION] == true) {
+            if (ActivityCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
+                fusedLocationClient.getCurrentLocation(Priority.PRIORITY_HIGH_ACCURACY, null)
+                    .addOnSuccessListener { loc ->
+                        if (loc != null) {
+                            latitude = loc.latitude
+                            longitude = loc.longitude
+                            locationAvailable = true
+                            lokasiStatus = if (LocationUtils.isWithinCampusRadius(loc.latitude, loc.longitude)) {
+                                "Di Dalam Area Kampus"
+                            } else {
+                                "Di Luar Area Kampus"
+                            }
+                        } else {
+                            lokasiStatus = "Gagal Mendapatkan Lokasi"
+                            locationAvailable = false
+                        }
+                    }.addOnFailureListener {
+                        lokasiStatus = "Gagal Mendapatkan Lokasi"
+                        locationAvailable = false
+                    }
+            }
+        } else {
+            lokasiStatus = "Izin lokasi ditolak."
+            locationAvailable = false
+        }
     }
 
-    LaunchedEffect(Unit) { locationPermissionLauncher.launch(Manifest.permission.ACCESS_FINE_LOCATION) }
-
-    Surface(modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background) {
-        val gradient = Brush.linearGradient(
-            colors = listOf(MaterialTheme.colorScheme.primary.copy(alpha = 0.18f), Color.Transparent),
-            start = Offset(0f, 0f),
-            end = Offset(Float.POSITIVE_INFINITY, Float.POSITIVE_INFINITY)
+    LaunchedEffect(Unit) {
+        requestPermissionLauncher.launch(
+            arrayOf(Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.CAMERA)
         )
-        LazyColumn(
-            modifier = Modifier.fillMaxSize().background(gradient).padding(WindowInsets.systemBars.asPaddingValues()),
-            horizontalAlignment = Alignment.CenterHorizontally,
-            contentPadding = PaddingValues(horizontal = 24.dp, vertical = 16.dp)
-        ) {
-            item { AnimatedHeader(delay = 0) }
-            item { Spacer(modifier = Modifier.height(24.dp)) }
-
-            item { AnimatedInputCard(npm, nama, mataKuliah, { npm = it }, { nama = it }, { mataKuliah = it }) }
-            item { Spacer(modifier = Modifier.height(24.dp)) }
-
-            item {
-                AnimatedActionSection(isFetchingLocation, { requestLocationUpdate() }, { cameraPermissionLauncher.launch(Manifest.permission.CAMERA) }, lokasi)
     }
-            item { Spacer(modifier = Modifier.height(24.dp)) }
 
-            item { AnimatedPhotoPreview(foto) }
-            item { Spacer(modifier = Modifier.height(24.dp)) }
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = { Text("Absen Kehadiran", color = Color.White, fontSize = 18.sp) },
+                navigationIcon = {
+                    IconButton(onClick = { navController.popBackStack() }) {
+                        Icon(Icons.Default.ArrowBack, contentDescription = "Kembali", tint = Color.White)
+                    }
+                },
+                colors = TopAppBarDefaults.centerAlignedTopAppBarColors(containerColor = Color(0xFF2E7D32))
+            )
+        }
+    ) { innerPadding ->
+        Column(
+            modifier = Modifier
+                .padding(innerPadding)
+                .fillMaxSize()
+                .background(Color(0xFFF8FBF8))
+                .padding(horizontal = 16.dp),
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Spacer(modifier = Modifier.height(16.dp))
+            Text("Selamat Datang,", style = MaterialTheme.typography.bodyLarge)
+            Text("$nama ($npm)", fontWeight = FontWeight.Bold, fontSize = 18.sp)
+            Spacer(modifier = Modifier.height(16.dp))
 
-            item {
-                val canSubmit = npm.isNotEmpty() && nama.isNotEmpty() && mataKuliah.isNotEmpty() && latitude != null && longitude != null && foto != null
-                AnimatedSubmitButton(
-                    enabled = canSubmit && !isUploading,
-                    isUploading = isUploading,
+            OutlinedTextField(
+                value = matakuliah,
+                onValueChange = { matakuliah = it },
+                label = { Text("Mata Kuliah") },
+                singleLine = true,
+                modifier = Modifier.fillMaxWidth()
+            )
+            Spacer(modifier = Modifier.height(16.dp))
+
+
+            Row(
+                modifier = Modifier.padding(top = 8.dp),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                Text(
+                    text = "Status Lokasi: $lokasiStatus ",
+                    style = MaterialTheme.typography.bodyMedium,
+                    color = if (locationAvailable) Color(0xFF2E7D32) else Color.Red
+                )
+                if (locationAvailable) {
+                    Icon(Icons.Default.CheckCircle, "OK", tint = Color(0xFF2E7D32), modifier = Modifier.size(16.dp))
+                } else {
+                    Icon(Icons.Default.Close, "Error", tint = Color.Red, modifier = Modifier.size(16.dp))
+                }
+            }
+
+            Spacer(modifier = Modifier.height(20.dp))
+            Text("Ambil Foto Selfie", fontWeight = FontWeight.SemiBold, fontSize = 16.sp)
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Box(
+                modifier = Modifier
+                    .size(220.dp)
+                    .clip(CircleShape)
+                    .background(Color(0xFFE0E0E0)),
+                contentAlignment = Alignment.Center
+            ) {
+                if (foto != null) {
+                    Image(
+                        bitmap = foto!!.asImageBitmap(),
+                        contentDescription = null,
+                        modifier = Modifier.fillMaxSize(),
+                        contentScale = ContentScale.Crop
+                    )
+                } else {
+                    Icon(Icons.Default.Person, null, modifier = Modifier.size(80.dp), tint = Color.White)
+                }
+            }
+
+            Spacer(modifier = Modifier.height(40.dp))
+
+            Button(
+                onClick = {
+                    val intent = Intent(MediaStore.ACTION_IMAGE_CAPTURE)
+                    cameraLauncher.launch(intent)
+                },
+                modifier = Modifier.fillMaxWidth(0.7f).height(50.dp),
+                colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF4CAF50)),
+                shape = RoundedCornerShape(10.dp)
+            ) {
+                Text("AMBIL FOTO", fontWeight = FontWeight.Bold, color = Color.White)
+            }
+
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Button(
                 onClick = {
                     isUploading = true
-                        val jarak = hitungJarak(latitude!!, longitude!!, KAMPUS_LAT, KAMPUS_LON)
-                        val statusAbsen = if (jarak <= MAX_RADIUS) "HADIR" else "DITOLAK"
-                        if (statusAbsen == "HADIR") {
-                            kirimKeN8n(activity, npm, nama, mataKuliah, latitude!!, longitude!!, foto!!, statusAbsen) { isUploading = false }
-                        } else {
-                            val jarakKm = String.format("%.2f", jarak / 1000)
-                            Toast.makeText(context, "Absensi DITOLAK: Anda berada ${jarakKm}km dari kampus.", Toast.LENGTH_LONG).show()
+                    if (latitude != null && longitude != null && foto != null) {
+                        kirimKeServer(activity, npm, nama, matakuliah, latitude!!, longitude!!, foto!!) {
                             isUploading = false
+                            if (it) navController.popBackStack()
+                        }
+                    } else {
+                        isUploading = false
+                        Toast.makeText(context, "Lokasi atau foto belum siap.", Toast.LENGTH_LONG).show()
+                    }
+                },
+                modifier = Modifier.fillMaxWidth(0.7f).height(50.dp),
+                enabled = foto != null && locationAvailable && matakuliah.isNotBlank() && !isUploading,
+                colors = ButtonDefaults.buttonColors(containerColor = Color(0xFF1B5E20)),
+                shape = RoundedCornerShape(10.dp)
+            ) {
+                Text("KIRIM ABSENSI", fontWeight = FontWeight.Bold)
+            }
+
+
+            if (isUploading) {
+                Spacer(modifier = Modifier.height(16.dp))
+                CircularProgressIndicator(color = Color(0xFF2E7D32))
             }
         }
+    }
+}
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun HistoryScreen(navController: NavController, npm: String, activity: Activity) {
+    var historyList by remember { mutableStateOf<List<AttendanceRecord>>(emptyList()) }
+    var isLoading by remember { mutableStateOf(true) }
+
+    LaunchedEffect(npm) {
+        fetchHistoryFromServer(npm, activity) {
+            historyList = it
+            isLoading = false
+        }
+    }
+
+    Scaffold(
+        topBar = {
+            CenterAlignedTopAppBar(
+                title = { Text("Riwayat Absensi", color = Color.White) },
+                navigationIcon = {
+                    IconButton(onClick = { navController.popBackStack() }) {
+                        Icon(Icons.Default.ArrowBack, "Kembali", tint = Color.White)
+                    }
+                },
+                colors = TopAppBarDefaults.centerAlignedTopAppBarColors(Color(0xFF2E7D32))
+            )
+        }
+    ) { innerPadding ->
+        if (isLoading) {
+            Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                CircularProgressIndicator()
+            }
+        } else if (historyList.isEmpty()) {
+            Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                Text("Tidak ada riwayat absensi.")
+            }
+        } else {
+            LazyColumn(
+                modifier = Modifier
+                    .padding(innerPadding)
+                    .fillMaxSize()
+                    .padding(16.dp)
+            ) {
+                items(historyList) { record ->
+                    val date = SimpleDateFormat("dd MMMM yyyy, HH:mm", Locale.getDefault()).format(Date(record.timestamp))
+                    Card(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(vertical = 4.dp),
+                        elevation = CardDefaults.cardElevation(2.dp)
+                    ) {
+                        Row(
+                            modifier = Modifier
+                                .padding(16.dp)
+                                .fillMaxWidth(),
+                            verticalAlignment = Alignment.CenterVertically,
+                            horizontalArrangement = Arrangement.SpaceBetween
+                        ) {
+                            Text(text = date, fontWeight = FontWeight.Medium)
+                            Text(
+                                text = record.status,
+                                color = if (record.status == "Sukses") Color(0xFF2E7D32) else Color.Red,
+                                fontWeight = FontWeight.Bold
                             )
                         }
                     }
                 }
-}
-
-/* ================= KOMPONEN UI DENGAN ANIMASI ================= */
-
-@Composable
-fun AnimatedHeader(delay: Long = 0) {
-    var visible by remember { mutableStateOf(false) }
-    LaunchedEffect(Unit) { delay(delay); visible = true }
-    AnimatedVisibility(visible = visible, enter = fadeIn(spring(stiffness = Spring.StiffnessLow)) + slideInVertically(spring(Spring.DampingRatioMediumBouncy, Spring.StiffnessLow), initialOffsetY = { -it })) {
-        Column(horizontalAlignment = Alignment.CenterHorizontally, modifier = Modifier.fillMaxWidth()) {
-            Text("E-ABSENSI", style = MaterialTheme.typography.displaySmall, fontWeight = FontWeight.Bold, color = MaterialTheme.colorScheme.primary)
-            Text("Universitas Bhayangkara Jakarta Raya", style = MaterialTheme.typography.titleMedium, color = Color.Gray)
-        }
-    }
-}
-
-@Composable
-fun AnimatedInputCard(
-    npm: String, nama: String, mataKuliah: String,
-    onNpmChange: (String) -> Unit, onNamaChange: (String) -> Unit, onMataKuliahChange: (String) -> Unit
-) {
-    var cardVisible by remember { mutableStateOf(false) }
-    LaunchedEffect(Unit) { delay(200); cardVisible = true }
-
-    AnimatedVisibility(visible = cardVisible, enter = fadeIn(spring(stiffness = Spring.StiffnessLow)) + slideInVertically(spring(Spring.DampingRatioMediumBouncy, Spring.StiffnessLow), initialOffsetY = { it / 2 })) {
-        Card(modifier = Modifier.fillMaxWidth(), shape = RoundedCornerShape(16.dp), elevation = CardDefaults.cardElevation(4.dp)) {
-            Column(modifier = Modifier.padding(20.dp)) {
-                Text("Data Mahasiswa", style = MaterialTheme.typography.titleMedium, fontWeight = FontWeight.Bold)
-                Spacer(modifier = Modifier.height(16.dp))
-                OutlinedTextField(value = npm, onValueChange = onNpmChange, label = { Text("NPM") }, modifier = Modifier.fillMaxWidth(), keyboardOptions = KeyboardOptions(imeAction = ImeAction.Next), leadingIcon = { Icon(Icons.Default.Person, "NPM") })
-                Spacer(modifier = Modifier.height(8.dp))
-                OutlinedTextField(value = nama, onValueChange = onNamaChange, label = { Text("Nama Lengkap") }, modifier = Modifier.fillMaxWidth(), keyboardOptions = KeyboardOptions(imeAction = ImeAction.Next), leadingIcon = { Icon(Icons.Default.Badge, "Nama") })
-                Spacer(modifier = Modifier.height(8.dp))
-                OutlinedTextField(value = mataKuliah, onValueChange = onMataKuliahChange, label = { Text("Mata Kuliah") }, modifier = Modifier.fillMaxWidth(), keyboardOptions = KeyboardOptions(imeAction = ImeAction.Done), leadingIcon = { Icon(Icons.Default.Book, "Mata Kuliah") })
             }
         }
     }
 }
 
-@Composable
-fun AnimatedActionSection(isFetchingLocation: Boolean, onRefresh: () -> Unit, onTakePhoto: () -> Unit, lokasi: String?) {
-    var visible by remember { mutableStateOf(false) }
-    LaunchedEffect(Unit) { delay(400); visible = true }
 
-    AnimatedVisibility(visible = visible, enter = fadeIn(spring(stiffness = Spring.StiffnessLow)) + slideInVertically(spring(Spring.DampingRatioMediumBouncy, Spring.StiffnessLow), initialOffsetY = { it / 2 })) {
-        Column {
-            StatusRowWithRefresh(icon = Icons.Default.LocationOn, title = "Lokasi GPS", status = lokasi ?: "Meminta izin...", isRefreshing = isFetchingLocation, onRefresh = onRefresh)
-            Spacer(modifier = Modifier.height(16.dp))
-            ActionButton(text = "Ambil Foto Kehadiran", icon = Icons.Default.CameraAlt, onClick = onTakePhoto)
-        }
-    }
-}
+/* ================= NETWORK LOGIC ================= */
 
-@Composable
-fun AnimatedPhotoPreview(foto: Bitmap?) {
-    AnimatedVisibility(visible = foto != null, enter = fadeIn(spring(stiffness = Spring.StiffnessMedium)) + slideInVertically(spring(Spring.DampingRatioMediumBouncy, Spring.StiffnessMedium), initialOffsetY = { it / 2 })) {
-        Card(shape = RoundedCornerShape(16.dp), elevation = CardDefaults.cardElevation(4.dp)) {
-            Box(contentAlignment = Alignment.Center) {
-                Image(bitmap = foto!!.asImageBitmap(), "Preview Foto Absensi", modifier = Modifier.fillMaxWidth().height(250.dp).clip(RoundedCornerShape(16.dp)), contentScale = ContentScale.Crop)
-                Icon(Icons.Default.CheckCircle, "Foto Diambil", tint = Color.White.copy(alpha = 0.8f), modifier = Modifier.size(60.dp))
+fun kirimKeServer(activity: Activity, npm: String, nama: String, matakuliah: String, lat: Double, lon: Double, img: Bitmap, onFinish: (Boolean) -> Unit) {
+    thread {
+        var isSuccess = false
+        try {
+            val url = URL("https://n8n.lab.ubharajaya.ac.id/webhook/23c6993d-1792-48fb-ad1c-ffc78a3e6254")
+            val conn = url.openConnection() as HttpURLConnection
+            conn.requestMethod = "POST"
+            conn.setRequestProperty("Content-Type", "application/json")
+            conn.doOutput = true
+
+            val json = JSONObject().apply {
+                put("npm", npm)
+                put("nama", nama)
+                put("mata_kuliah", matakuliah) // FIX: Changed from "matakuliah" to "mata_kuliah"
+                put("latitude", lat)
+                put("longitude", lon)
+                put("timestamp", System.currentTimeMillis())
+                put("foto_base64", bitmapToBase64(img))
+            }
+
+            conn.outputStream.write(json.toString().toByteArray())
+
+            val code = conn.responseCode
+            isSuccess = code == 200
+            activity.runOnUiThread {
+                Toast.makeText(activity, if(isSuccess) "Absensi Sukses!" else "Absensi Gagal: Server Error $code", Toast.LENGTH_LONG).show()
+                onFinish(isSuccess)
+            }
+        } catch (e: Exception) {
+            activity.runOnUiThread {
+                Toast.makeText(activity, "Error: Gagal terhubung ke server.", Toast.LENGTH_SHORT).show()
+                onFinish(false)
             }
         }
     }
 }
 
-@Composable
-fun AnimatedSubmitButton(enabled: Boolean, isUploading: Boolean, onClick: () -> Unit) {
-    var visible by remember { mutableStateOf(false) }
-    LaunchedEffect(Unit) { delay(600); visible = true }
+fun fetchHistoryFromServer(npm: String, activity: Activity, onResult: (List<AttendanceRecord>) -> Unit) {
+    thread {
+        try {
+            // PENTING: URL ini hanya contoh. Ganti dengan URL API Anda untuk mengambil riwayat.
+            val url = URL("https://n8n.lab.ubharajaya.ac.id/webhook-test/riwayat-absensi?npm=$npm")
+            val conn = url.openConnection() as HttpURLConnection
+            conn.requestMethod = "GET"
 
-    AnimatedVisibility(visible = visible, enter = fadeIn(spring(stiffness = Spring.StiffnessLow)) + slideInVertically(spring(Spring.DampingRatioMediumBouncy, Spring.StiffnessLow), initialOffsetY = { it / 2 })) {
-        Button(onClick = onClick, enabled = enabled, modifier = Modifier.fillMaxWidth().height(56.dp)) {
-            if (isUploading) {
-                CircularProgressIndicator(color = Color.White, modifier = Modifier.size(24.dp))
+            if (conn.responseCode == 200) {
+                val response = conn.inputStream.bufferedReader().use { it.readText() }
+                val jsonArray = JSONArray(response)
+                val records = mutableListOf<AttendanceRecord>()
+                for (i in 0 until jsonArray.length()) {
+                    val jsonObject = jsonArray.getJSONObject(i)
+                    records.add(
+                        AttendanceRecord(
+                            timestamp = jsonObject.getLong("timestamp"),
+                            status = jsonObject.getString("status")
+                        )
+                    )
+                }
+                activity.runOnUiThread { onResult(records) }
             } else {
-                Text("KIRIM ABSENSI", fontWeight = FontWeight.Bold)
+                activity.runOnUiThread { onResult(emptyList()) }
             }
+        } catch (e: Exception) {
+            activity.runOnUiThread { onResult(emptyList()) }
         }
     }
 }
-
-/* ================= KOMPONEN UI STANDAR ================= */
-
-@Composable
-fun StatusRowWithRefresh(icon: ImageVector, title: String, status: String, isRefreshing: Boolean, onRefresh: () -> Unit) {
-    Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
-        Icon(icon, contentDescription = title, tint = MaterialTheme.colorScheme.primary)
-        Spacer(modifier = Modifier.width(16.dp))
-        Column(modifier = Modifier.weight(1f)) {
-            Text(title, fontWeight = FontWeight.Bold, fontSize = 16.sp)
-            Text(status, style = MaterialTheme.typography.bodySmall, color = Color.Gray)
-        }
-        if (isRefreshing) {
-            CircularProgressIndicator(modifier = Modifier.size(24.dp))
-        } else {
-            IconButton(onClick = onRefresh) {
-                Icon(Icons.Default.Refresh, "Cari Ulang Lokasi")
-            }
-        }
-    }
-}
-
-@Composable
-fun ActionButton(text: String, icon: ImageVector, onClick: () -> Unit) {
-    FilledTonalButton(onClick = onClick, modifier = Modifier.fillMaxWidth().height(56.dp), shape = RoundedCornerShape(16.dp)) {
-        Icon(icon, contentDescription = null)
-        Spacer(modifier = Modifier.width(12.dp))
-        Text(text, fontWeight = FontWeight.Bold)
-    }
-}