app/build.gradle.kts

@@ -68,7 +68,7 @@ dependencies {
     debugImplementation(libs.ui.tooling)
     debugImplementation(libs.ui.test.manifest)
 
-    // Room Database - TAMBAHKAN INI SEMUA
+    // Room Database
     val roomVersion = "2.6.1"
     implementation("androidx.room:room-runtime:$roomVersion")
     implementation("androidx.room:room-ktx:$roomVersion")
@@ -92,6 +92,6 @@ dependencies {
     // Gson
     implementation("com.google.code.gson:gson:2.10.1")
 
-    // PDFBox untuk extract text dari PDF
+    // PDF Support
     implementation("com.tom-roush:pdfbox-android:2.0.27.0")
 }

app/src/main/AndroidManifest.xml

@@ -18,17 +18,6 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/Theme.Notebook">
-
-        <provider
-            android:name="androidx.core.content.FileProvider"
-            android:authorities="${applicationId}.fileprovider"
-            android:exported="false"
-            android:grantUriPermissions="true">
-            <meta-data
-                android:name="android.support.FILE_PROVIDER_PATHS"
-                android:resource="@xml/file_paths" />
-        </provider>
-
         <activity
             android:name=".MainActivity"
             android:exported="true"

app/src/main/java/com/example/notebook/MainActivity.kt

@@ -40,23 +40,13 @@ class MainActivity : ComponentActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-
-        // Initialize PDFBox
-        com.example.notebook.utils.PdfHelper.initialize(this)
-
         setContent {
-            var isDarkMode by remember { mutableStateOf(false) }
+            NotebookTheme {
-
-            NotebookTheme(darkTheme = isDarkMode) {
                 Surface(
                     modifier = Modifier.fillMaxSize(),
                     color = MaterialTheme.colorScheme.background
                 ) {
-                    NotebookApp(
+                    NotebookApp(viewModel = viewModel)
-                        viewModel = viewModel,
-                        isDarkMode = isDarkMode,
-                        onThemeChange = { isDarkMode = it }
-                    )
                 }
             }
         }
@@ -65,7 +55,7 @@ class MainActivity : ComponentActivity() {
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun NotebookApp(viewModel: NotebookViewModel, isDarkMode: Boolean, onThemeChange: (Boolean) -> Unit) {
+fun NotebookApp(viewModel: NotebookViewModel) {
     var selectedTabIndex by remember { mutableIntStateOf(0) }
     val tabs = listOf("Studio", "Chat", "Sources")
     var showGoogleAppsMenu by remember { mutableStateOf(false) }
@@ -74,21 +64,12 @@ fun NotebookApp(viewModel: NotebookViewModel, isDarkMode: Boolean, onThemeChange
     var chatInput by remember { mutableStateOf("") }
     var selectedNotebookId by remember { mutableIntStateOf(-1) }
 
-    // Log setiap kali selectedNotebookId berubah
-    LaunchedEffect(selectedNotebookId) {
-        println("🎯 selectedNotebookId berubah menjadi: $selectedNotebookId")
-    }
-
     // Kalau ada notebook yang dipilih, tampilkan detail screen
     if (selectedNotebookId != -1) {
-        println("✨ Menampilkan NotebookDetailScreen untuk ID: $selectedNotebookId")
         com.example.notebook.ui.screens.NotebookDetailScreen(
             viewModel = viewModel,
             notebookId = selectedNotebookId,
-            onBack = {
+            onBack = { selectedNotebookId = -1 }
-                println("⬅️ Kembali dari detail screen")
-                selectedNotebookId = -1
-            }
         )
         return
     }
@@ -106,12 +87,13 @@ fun NotebookApp(viewModel: NotebookViewModel, isDarkMode: Boolean, onThemeChange
                         IconButton(onClick = { showSettingsMenu = true }) {
                             Icon(Icons.Filled.Settings, contentDescription = "Settings")
                         }
-                        SettingsMenu(
+                        SettingsMenu(expanded = showSettingsMenu, onDismiss = { showSettingsMenu = false })
-                            expanded = showSettingsMenu,
+                    }
-                            onDismiss = { showSettingsMenu = false },
+                    Box {
-                            isDarkMode = isDarkMode,
+                        IconButton(onClick = { showGoogleAppsMenu = true }) {
-                            onThemeChange = onThemeChange
+                            Icon(Icons.Filled.Apps, contentDescription = "Google Apps")
-                        )
+                        }
+                        GoogleAppsMenu(expanded = showGoogleAppsMenu, onDismiss = { showGoogleAppsMenu = false })
                     }
                     Box(
                         modifier = Modifier
@@ -167,13 +149,7 @@ fun NotebookApp(viewModel: NotebookViewModel, isDarkMode: Boolean, onThemeChange
                 }
             }
             when (selectedTabIndex) {
-                0 -> StudioScreen(
+                0 -> StudioScreen(viewModel)
-                    viewModel = viewModel,
-                    onNotebookClick = { notebookId ->
-                        println("📱 Navigasi ke notebook ID: $notebookId")
-                        selectedNotebookId = notebookId
-                    }
-                )
                 1 -> ChatScreen(viewModel)
                 2 -> SourcesScreen(viewModel)
             }
@@ -183,7 +159,7 @@ fun NotebookApp(viewModel: NotebookViewModel, isDarkMode: Boolean, onThemeChange
 
 // === STUDIO SCREEN (UPDATED) ===
 @Composable
-fun StudioScreen(viewModel: NotebookViewModel, onNotebookClick: (Int) -> Unit) {
+fun StudioScreen(viewModel: NotebookViewModel) {
     val notebooks by viewModel.notebooks.collectAsState()
     var showCreateDialog by remember { mutableStateOf(false) }
 
@@ -223,14 +199,8 @@ fun StudioScreen(viewModel: NotebookViewModel, onNotebookClick: (Int) -> Unit) {
             items(notebooks) { notebook ->
                 NotebookCard(
                     notebook = notebook,
-                    onClick = {
+                    onClick = { /* TODO: Buka notebook */ },
-                        println("🟢 onClick triggered untuk notebook ID: ${notebook.id}")
+                    onDelete = { viewModel.deleteNotebook(notebook) }
-                        onNotebookClick(notebook.id)
-                    },
-                    onDelete = {
-                        println("🔴 Delete triggered untuk notebook ID: ${notebook.id}")
-                        viewModel.deleteNotebook(notebook)
-                    }
                 )
             }
         }
@@ -276,13 +246,11 @@ fun NotebookCard(
     val dateFormat = SimpleDateFormat("dd MMM yyyy, HH:mm", Locale.getDefault())
 
     Card(
-        modifier = Modifier.fillMaxWidth(),
+        modifier = Modifier
+            .fillMaxWidth()
+            .clickable(onClick = onClick),
         shape = RoundedCornerShape(12.dp),
-        colors = CardDefaults.cardColors(containerColor = Color(0xFFF8F9FA)),
+        colors = CardDefaults.cardColors(containerColor = Color(0xFFF8F9FA))
-        onClick = {
-            println("🔵 Card onClick: ID=${notebook.id}, Title=${notebook.title}")
-            onClick()
-        }
     ) {
         Row(
             modifier = Modifier
@@ -467,40 +435,8 @@ fun AccountScreen(onDismiss: () -> Unit) {
 }
 
 @Composable
-fun SettingsMenu(
+fun SettingsMenu(expanded: Boolean, onDismiss: () -> Unit) {
-    expanded: Boolean,
-    onDismiss: () -> Unit,
-    isDarkMode: Boolean,
-    onThemeChange: (Boolean) -> Unit
-) {
     DropdownMenu(expanded = expanded, onDismissRequest = onDismiss) {
-        // Dark Mode Toggle
-        DropdownMenuItem(
-            text = {
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalArrangement = Arrangement.SpaceBetween,
-                    verticalAlignment = Alignment.CenterVertically
-                ) {
-                    Row(verticalAlignment = Alignment.CenterVertically) {
-                        Icon(
-                            if (isDarkMode) Icons.Default.DarkMode else Icons.Default.LightMode,
-                            contentDescription = null
-                        )
-                        Spacer(modifier = Modifier.width(12.dp))
-                        Text(if (isDarkMode) "Mode Gelap" else "Mode Terang")
-                    }
-                    Switch(
-                        checked = isDarkMode,
-                        onCheckedChange = onThemeChange
-                    )
-                }
-            },
-            onClick = { onThemeChange(!isDarkMode) }
-        )
-
-        Divider()
-
         DropdownMenuItem(
             text = { Text("NotebookLM Help") },
             onClick = { },
@@ -508,3 +444,21 @@ fun SettingsMenu(
         )
     }
 }
+
+@Composable
+fun GoogleAppsMenu(expanded: Boolean, onDismiss: () -> Unit) {
+    val apps = listOf(
+        "Account" to Icons.Default.AccountCircle,
+        "Gmail" to Icons.Default.Mail,
+        "Drive" to Icons.Default.Cloud
+    )
+    DropdownMenu(expanded = expanded, onDismissRequest = onDismiss) {
+        apps.forEach { (name, icon) ->
+            DropdownMenuItem(
+                text = { Text(name) },
+                onClick = { },
+                leadingIcon = { Icon(icon, contentDescription = name) }
+            )
+        }
+    }
+}

app/src/main/java/com/example/notebook/api/ApiConstants.kt

@@ -15,7 +15,7 @@ object ApiConstants {
     const val BASE_URL = "https://generativelanguage.googleapis.com/"
 
     // Model yang digunakan (Flash = gratis & cepat)
-    const val MODEL_NAME = "gemini-2.5-flash"
+    const val MODEL_NAME = "gemini-2.0-flash"
 
     // System instruction untuk AI
     const val SYSTEM_INSTRUCTION = """

app/src/main/java/com/example/notebook/api/GeminiApiService.kt

@@ -15,7 +15,7 @@ import java.util.concurrent.TimeUnit
  */
 interface GeminiApiService {
 
-    @POST("v1beta/models/gemini-2.5-flash:generateContent")
+    @POST("v1beta/models/gemini-2.0-flash:generateContent")
     suspend fun generateContent(
         @Query("key") apiKey: String,
         @Body request: GeminiRequest

app/src/main/java/com/example/notebook/api/GeminiModels.kt

@@ -26,18 +26,7 @@ data class Content(
 
 data class Part(
     @SerializedName("text")
-    val text: String? = null,
+    val text: String
-
-    @SerializedName("inlineData")
-    val inlineData: InlineData? = null
-)
-
-data class InlineData(
-    @SerializedName("mimeType")
-    val mimeType: String,
-
-    @SerializedName("data")
-    val data: String  // Base64 encoded
 )
 
 data class GenerationConfig(

app/src/main/java/com/example/notebook/api/GeminiRepository.kt

@@ -8,7 +8,7 @@ class GeminiRepository {
     private val apiService = GeminiApiService.create()
 
     /**
-     * Generate summary dari text atau file PDF
+     * Generate summary dari text
      */
     suspend fun generateSummary(text: String): Result<String> {
         return try {
@@ -43,93 +43,6 @@ class GeminiRepository {
         }
     }
 
-    /**
-     * Generate summary dari file PDF (binary)
-     * Untuk PDF yang image-based atau sulit di-extract
-     * Optimized untuk mencegah ANR
-     */
-    suspend fun generateSummaryFromPdfFile(
-        filePath: String,
-        fileName: String
-    ): Result<String> = kotlinx.coroutines.withContext(kotlinx.coroutines.Dispatchers.IO) {
-        try {
-            println("📄 Reading PDF file: $filePath")
-            val file = java.io.File(filePath)
-
-            // Check file size (max 20MB untuk Gemini)
-            val fileSizeMB = file.length() / (1024.0 * 1024.0)
-            if (fileSizeMB > 20) {
-                return@withContext Result.failure(Exception("File terlalu besar (${String.format("%.2f", fileSizeMB)} MB). Maksimal 20MB"))
-            }
-
-            println("📄 PDF size: ${file.length()} bytes (${String.format("%.2f", fileSizeMB)} MB)")
-
-            // Read & encode in background
-            val bytes = file.readBytes()
-            val base64 = android.util.Base64.encodeToString(bytes, android.util.Base64.NO_WRAP)
-
-            println("📄 Base64 encoded, length: ${base64.length}")
-
-            val prompt = """
-                Buatlah ringkasan komprehensif dari dokumen PDF ini dalam bahasa Indonesia.
-                Ringkasan harus:
-                - Mencakup semua poin-poin utama
-                - Mudah dipahami
-                - Panjang sekitar 3-5 paragraf
-                
-                File: $fileName
-            """.trimIndent()
-
-            val request = GeminiRequest(
-                contents = listOf(
-                    Content(
-                        parts = listOf(
-                            Part(text = prompt),
-                            Part(
-                                inlineData = InlineData(
-                                    mimeType = "application/pdf",
-                                    data = base64
-                                )
-                            )
-                        ),
-                        role = "user"
-                    )
-                ),
-                generationConfig = GenerationConfig(
-                    temperature = 0.7,
-                    maxOutputTokens = 2048,
-                    topP = 0.95
-                ),
-                systemInstruction = SystemInstruction(
-                    parts = listOf(Part(text = ApiConstants.SYSTEM_INSTRUCTION))
-                )
-            )
-
-            println("📡 Sending request to Gemini API...")
-            val response = apiService.generateContent(ApiConstants.GEMINI_API_KEY, request)
-
-            if (response.isSuccessful) {
-                val body = response.body()
-                val textResponse = body?.getTextResponse()
-
-                if (textResponse != null) {
-                    println("✅ Gemini response received: ${textResponse.length} chars")
-                    Result.success(textResponse)
-                } else {
-                    Result.failure(Exception("Empty response from API"))
-                }
-            } else {
-                val errorBody = response.errorBody()?.string()
-                println("❌ API Error: ${response.code()} - $errorBody")
-                Result.failure(Exception("API Error: ${response.code()} - $errorBody"))
-            }
-        } catch (e: Exception) {
-            println("❌ Exception in generateSummaryFromPdfFile: ${e.message}")
-            e.printStackTrace()
-            Result.failure(e)
-        }
-    }
-
     /**
      * Chat dengan context dokumen
      */
@@ -175,101 +88,6 @@ class GeminiRepository {
         }
     }
 
-    /**
-     * Chat dengan PDF file langsung (untuk scan/image PDF)
-     * Digunakan ketika text extraction gagal
-     */
-    suspend fun chatWithPdfFile(
-        userMessage: String,
-        pdfFilePath: String,
-        pdfFileName: String,
-        chatHistory: List<Pair<String, String>> = emptyList()
-    ): Result<String> = kotlinx.coroutines.withContext(kotlinx.coroutines.Dispatchers.IO) {
-        try {
-            println("📄 Chat with PDF file: $pdfFilePath")
-            val file = java.io.File(pdfFilePath)
-
-            // Check file size (max 20MB)
-            val fileSizeMB = file.length() / (1024.0 * 1024.0)
-            if (fileSizeMB > 20) {
-                return@withContext Result.failure(
-                    Exception("File terlalu besar (${String.format("%.2f", fileSizeMB)} MB). Maksimal 20MB")
-                )
-            }
-
-            println("📄 PDF size: ${file.length()} bytes (${String.format("%.2f", fileSizeMB)} MB)")
-
-            // Read & encode in background
-            val bytes = file.readBytes()
-            val base64 = android.util.Base64.encodeToString(bytes, android.util.Base64.NO_WRAP)
-
-            println("📄 Base64 encoded, length: ${base64.length}")
-
-            // Build prompt dengan chat history
-            val promptBuilder = StringBuilder()
-            promptBuilder.append("Dokumen PDF: $pdfFileName\n\n")
-
-            if (chatHistory.isNotEmpty()) {
-                promptBuilder.append("Riwayat percakapan sebelumnya:\n")
-                chatHistory.takeLast(5).forEach { (user, ai) ->
-                    promptBuilder.append("User: $user\n")
-                    promptBuilder.append("Assistant: $ai\n\n")
-                }
-            }
-
-            promptBuilder.append("Pertanyaan saat ini: $userMessage\n\n")
-            promptBuilder.append("Jawab pertanyaan berdasarkan isi dokumen PDF di atas. Gunakan bahasa Indonesia yang jelas dan mudah dipahami.")
-
-            val request = GeminiRequest(
-                contents = listOf(
-                    Content(
-                        parts = listOf(
-                            Part(
-                                inlineData = InlineData(
-                                    mimeType = "application/pdf",
-                                    data = base64
-                                )
-                            ),
-                            Part(text = promptBuilder.toString())
-                        ),
-                        role = "user"
-                    )
-                ),
-                generationConfig = GenerationConfig(
-                    temperature = 0.7,
-                    maxOutputTokens = 2048,
-                    topP = 0.95
-                ),
-                systemInstruction = SystemInstruction(
-                    parts = listOf(Part(text = ApiConstants.SYSTEM_INSTRUCTION))
-                )
-            )
-
-            println("📡 Sending chat request to Gemini API...")
-            val response = apiService.generateContent(ApiConstants.GEMINI_API_KEY, request)
-
-            if (response.isSuccessful) {
-                val body = response.body()
-                val textResponse = body?.getTextResponse()
-
-                if (textResponse != null) {
-                    println("✅ Chat response received: ${textResponse.length} chars")
-                    Result.success(textResponse)
-                } else {
-                    Result.failure(Exception("Empty response from API"))
-                }
-            } else {
-                val errorBody = response.errorBody()?.string()
-                println("❌ API Error: ${response.code()} - $errorBody")
-                Result.failure(Exception("API Error: ${response.code()} - $errorBody"))
-            }
-        } catch (e: Exception) {
-            println("❌ Exception in chatWithPdfFile: ${e.message}")
-            e.printStackTrace()
-            Result.failure(e)
-        }
-    }
-
     /**
      * Create request object dengan system instruction
      */
@@ -287,7 +105,7 @@ class GeminiRepository {
                 topP = 0.95
             ),
             systemInstruction = SystemInstruction(
-                parts = listOf(Part(ApiConstants.SYSTEM_INSTRUCTION))
+                parts = listOf(Part(ApiConstants.SYSTEM_INSTRUCTION.trimIndent()))
             )
         )
     }

app/src/main/java/com/example/notebook/data/NotebookRepository.kt

@@ -128,13 +128,4 @@ class NotebookRepository(private val dao: NotebookDao) {
     suspend fun clearChatHistory(notebookId: Int) {
         dao.clearChatHistory(notebookId)
     }
-
-    /**
-     * Hapus pesan AI terakhir (untuk replace dengan hasil sebenarnya)
-     */
-    suspend fun clearLastAIMessage(notebookId: Int) {
-        // Get last AI message
-        // Note: Ini simplified, di production sebaiknya pakai query langsung
-        // Untuk sekarang kita skip dulu, cukup pakai pesan "thinking" yang nanti di-override
-    }
 }

app/src/main/java/com/example/notebook/ui/screen/NotebookDetailScreen.kt

@@ -1,7 +1,5 @@
 package com.example.notebook.ui.screens
 
-import android.content.Context
-import android.content.Intent
 import android.net.Uri
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
@@ -28,72 +26,13 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
-import androidx.core.content.FileProvider
 import com.example.notebook.data.ChatMessageEntity
 import com.example.notebook.data.NotebookEntity
 import com.example.notebook.data.SourceEntity
 import com.example.notebook.viewmodel.NotebookViewModel
-import java.io.File
 import java.text.SimpleDateFormat
 import java.util.*
 
-/**
- * Fungsi untuk buka file dengan aplikasi default
- */
-fun openFile(context: Context, source: SourceEntity) {
-    try {
-        val file = File(source.filePath)
-
-        if (!file.exists()) {
-            android.widget.Toast.makeText(context, "File tidak ditemukan", android.widget.Toast.LENGTH_SHORT).show()
-            return
-        }
-
-        // Tentukan MIME type
-        val mimeType = when (source.fileType) {
-            "PDF" -> "application/pdf"
-            "Image" -> "image/*"
-            "Text" -> "text/plain"
-            "Markdown" -> "text/markdown"
-            "Word" -> "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
-            "PowerPoint" -> "application/vnd.openxmlformats-officedocument.presentationml.presentation"
-            "Audio" -> "audio/*"
-            "Video" -> "video/*"
-            else -> "*/*"
-        }
-
-        // Gunakan FileProvider untuk file di internal storage
-        val uri = FileProvider.getUriForFile(
-            context,
-            "${context.packageName}.fileprovider",
-            file
-        )
-
-        val intent = Intent(Intent.ACTION_VIEW).apply {
-            setDataAndType(uri, mimeType)
-            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
-            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-        }
-
-        // Cek apakah ada aplikasi yang bisa handle
-        if (intent.resolveActivity(context.packageManager) != null) {
-            context.startActivity(intent)
-        } else {
-            // Fallback: buka dengan chooser
-            val chooser = Intent.createChooser(intent, "Buka dengan")
-            context.startActivity(chooser)
-        }
-
-    } catch (e: Exception) {
-        android.widget.Toast.makeText(
-            context,
-            "Tidak bisa membuka file: ${e.message}",
-            android.widget.Toast.LENGTH_LONG
-        ).show()
-        e.printStackTrace()
-    }
-}
-
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun NotebookDetailScreen(
@@ -105,76 +44,10 @@ fun NotebookDetailScreen(
     val notebook by viewModel.currentNotebook.collectAsState()
     val sources by viewModel.sources.collectAsState()
     val chatMessages by viewModel.chatMessages.collectAsState()
-    val isLoading by viewModel.isLoading.collectAsState()
     var selectedTab by remember { mutableIntStateOf(0) }
     val tabs = listOf("Chat", "Sources")
     var chatInput by remember { mutableStateOf("") }
     var showUploadMenu by remember { mutableStateOf(false) }
-    var showDeleteDialog by remember { mutableStateOf(false) }
-    var sourceToDelete by remember { mutableStateOf<SourceEntity?>(null) }
-
-    // Loading overlay
-    if (isLoading) {
-        Box(
-            modifier = Modifier
-                .fillMaxSize()
-                .background(Color.Black.copy(alpha = 0.5f))
-                .clickable(enabled = false) { },
-            contentAlignment = Alignment.Center
-        ) {
-            Card(
-                modifier = Modifier.padding(32.dp),
-                shape = RoundedCornerShape(16.dp)
-            ) {
-                Column(
-                    modifier = Modifier.padding(24.dp),
-                    horizontalAlignment = Alignment.CenterHorizontally
-                ) {
-                    CircularProgressIndicator()
-                    Spacer(modifier = Modifier.height(16.dp))
-                    Text(
-                        "Processing...",
-                        style = MaterialTheme.typography.bodyLarge
-                    )
-                    Spacer(modifier = Modifier.height(8.dp))
-                    Text(
-                        "AI sedang membaca dokumen",
-                        style = MaterialTheme.typography.bodySmall,
-                        color = Color.Gray
-                    )
-                }
-            }
-        }
-    }
-
-    // Delete confirmation dialog
-    if (showDeleteDialog && sourceToDelete != null) {
-        AlertDialog(
-            onDismissRequest = { showDeleteDialog = false },
-            title = { Text("Hapus File?") },
-            text = { Text("File \"${sourceToDelete?.fileName}\" akan dihapus permanen. Lanjutkan?") },
-            confirmButton = {
-                Button(
-                    onClick = {
-                        sourceToDelete?.let { viewModel.deleteSource(it) }
-                        showDeleteDialog = false
-                        sourceToDelete = null
-                    },
-                    colors = ButtonDefaults.buttonColors(containerColor = Color.Red)
-                ) {
-                    Text("Hapus")
-                }
-            },
-            dismissButton = {
-                TextButton(onClick = {
-                    showDeleteDialog = false
-                    sourceToDelete = null
-                }) {
-                    Text("Batal")
-                }
-            }
-        )
-    }
 
     // File picker launcher
     val filePickerLauncher = rememberLauncherForActivityResult(
@@ -252,43 +125,6 @@ fun NotebookDetailScreen(
                                     },
                                     leadingIcon = { Icon(Icons.Default.Summarize, null) }
                                 )
-                                // Debug: Test PDF extraction
-                                Divider()
-                                DropdownMenuItem(
-                                    text = { Text("🔍 Test PDF Extract") },
-                                    onClick = {
-                                        showUploadMenu = false
-                                        val pdfSource = sources.firstOrNull { it.fileType == "PDF" }
-                                        if (pdfSource != null) {
-                                            println("🔍 Testing PDF: ${pdfSource.fileName}")
-                                            val result = com.example.notebook.utils.PdfHelper.extractTextFromPdf(pdfSource.filePath)
-                                            if (result != null) {
-                                                println("📊 Full text length: ${result.length} karakter")
-                                                println("📝 First 500 chars: ${result.take(500)}")
-                                                println("📝 Last 500 chars: ${result.takeLast(500)}")
-
-                                                android.widget.Toast.makeText(
-                                                    context,
-                                                    "✅ Extracted ${result.length} chars\nPreview: ${result.take(100)}...",
-                                                    android.widget.Toast.LENGTH_LONG
-                                                ).show()
-                                            } else {
-                                                android.widget.Toast.makeText(
-                                                    context,
-                                                    "❌ PDF extraction returned null!",
-                                                    android.widget.Toast.LENGTH_LONG
-                                                ).show()
-                                            }
-                                        } else {
-                                            android.widget.Toast.makeText(
-                                                context,
-                                                "⚠️ Tidak ada PDF yang diupload",
-                                                android.widget.Toast.LENGTH_SHORT
-                                            ).show()
-                                        }
-                                    },
-                                    leadingIcon = { Icon(Icons.Default.BugReport, null) }
-                                )
                             }
                         }
                     }
@@ -346,11 +182,7 @@ fun NotebookDetailScreen(
                     sources = sources,
                     onUploadClick = { filePickerLauncher.launch("*/*") },
                     onDeleteSource = { source ->
-                        sourceToDelete = source
+                        // TODO: Implement delete
-                        showDeleteDialog = true
-                    },
-                    onOpenSource = { source ->
-                        openFile(context, source)
                     }
                 )
             }
@@ -487,8 +319,7 @@ fun ChatBubble(message: ChatMessageEntity) {
 fun SourcesTab(
     sources: List<SourceEntity>,
     onUploadClick: () -> Unit,
-    onDeleteSource: (SourceEntity) -> Unit,
+    onDeleteSource: (SourceEntity) -> Unit
-    onOpenSource: (SourceEntity) -> Unit
 ) {
     if (sources.isEmpty()) {
         Column(
@@ -533,8 +364,7 @@ fun SourcesTab(
             items(sources) { source ->
                 SourceCard(
                     source = source,
-                    onDelete = { onDeleteSource(source) },
+                    onDelete = { onDeleteSource(source) }
-                    onOpen = { onOpenSource(source) }
                 )
             }
         }
@@ -542,17 +372,11 @@ fun SourcesTab(
 }
 
 @Composable
-fun SourceCard(
+fun SourceCard(source: SourceEntity, onDelete: () -> Unit) {
-    source: SourceEntity,
-    onDelete: () -> Unit,
-    onOpen: () -> Unit
-) {
     val dateFormat = SimpleDateFormat("dd MMM yyyy", Locale.getDefault())
 
     Card(
-        modifier = Modifier
+        modifier = Modifier.fillMaxWidth(),
-            .fillMaxWidth()
-            .clickable { onOpen() },
         colors = CardDefaults.cardColors(containerColor = Color(0xFFF8F9FA))
     ) {
         Row(
@@ -572,8 +396,6 @@ fun SourceCard(
                             "Image" -> Color(0xFF43A047)
                             "Text", "Markdown" -> Color(0xFF1E88E5)
                             "Audio" -> Color(0xFFFF6F00)
-                            "Word" -> Color(0xFF2196F3)
-                            "PowerPoint" -> Color(0xFFFF6D00)
                             else -> Color.Gray
                         }.copy(alpha = 0.1f)
                     ),
@@ -585,8 +407,6 @@ fun SourceCard(
                         "Image" -> Icons.Default.Image
                         "Text", "Markdown" -> Icons.Default.Description
                         "Audio" -> Icons.Default.AudioFile
-                        "Word" -> Icons.Default.Article
-                        "PowerPoint" -> Icons.Default.Slideshow
                         else -> Icons.Default.InsertDriveFile
                     },
                     contentDescription = null,
@@ -595,8 +415,6 @@ fun SourceCard(
                         "Image" -> Color(0xFF43A047)
                         "Text", "Markdown" -> Color(0xFF1E88E5)
                         "Audio" -> Color(0xFFFF6F00)
-                        "Word" -> Color(0xFF2196F3)
-                        "PowerPoint" -> Color(0xFFFF6D00)
                         else -> Color.Gray
                     }
                 )

app/src/main/java/com/example/notebook/utils/FileHelper.kt

@@ -64,19 +64,15 @@ object FileHelper {
      * Deteksi tipe file dari extension
      */
     fun getFileType(fileName: String): String {
-        val type = when (fileName.substringAfterLast('.').lowercase()) {
+        return when (fileName.substringAfterLast('.').lowercase()) {
             "pdf" -> "PDF"
             "txt" -> "Text"
             "md", "markdown" -> "Markdown"
             "jpg", "jpeg", "png", "gif" -> "Image"
             "mp3", "wav", "m4a" -> "Audio"
             "mp4", "avi", "mkv" -> "Video"
-            "doc", "docx" -> "Word"
-            "ppt", "pptx" -> "PowerPoint"
             else -> "Unknown"
         }
-        println("🔍 File: $fileName → Type: $type")
-        return type
     }
 
     /**

app/src/main/java/com/example/notebook/viewmodel/NotebookViewModel.kt

@@ -13,7 +13,6 @@ import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
 
 /**
  * ViewModel untuk manage state aplikasi
@@ -186,81 +185,47 @@ class NotebookViewModel(application: Application) : AndroidViewModel(application
         viewModelScope.launch {
             _isLoading.value = true
             try {
-                // Simpan pesan user
                 repository.sendMessage(notebookId, message, isUserMessage = true)
 
-                // Cek apakah ada PDF
+                val documentContext = buildDocumentContext()
-                val pdfSources = _sources.value.filter { it.fileType == "PDF" }
-                val textSources = _sources.value.filter { it.fileType in listOf("Text", "Markdown") }
 
-                if (pdfSources.isEmpty() && textSources.isEmpty()) {
+                if (documentContext.isEmpty()) {
                     val reply = "Maaf, belum ada dokumen yang diupload. Silakan upload dokumen terlebih dahulu untuk bisa bertanya."
                     repository.sendMessage(notebookId, reply, isUserMessage = false)
-                    return@launch
+                } else {
-                }
+                    val chatHistory = _chatMessages.value
-
+                        .takeLast(10)
-                println("📊 Q&A - PDF: ${pdfSources.size}, Text: ${textSources.size}")
+                        .filter { it.isUserMessage }
-
+                        .mapNotNull { userMsg ->
-                // Build chat history
+                            val aiMsg = _chatMessages.value.find {
-                val chatHistory = _chatMessages.value
+                                !it.isUserMessage && it.timestamp > userMsg.timestamp
-                    .takeLast(10)
+                            }
-                    .windowed(2, 2, partialWindows = false)
+                            if (aiMsg != null) {
-                    .mapNotNull { messages ->
+                                Pair(userMsg.message, aiMsg.message)
-                        if (messages.size == 2 && messages[0].isUserMessage && !messages[1].isUserMessage) {
+                            } else null
-                            Pair(messages[0].message, messages[1].message)
-                        } else null
-                    }
-
-                // PATTERN SAMA dengan generateSummary
-                if (pdfSources.isNotEmpty()) {
-                    val pdfSource = pdfSources.first()
-                    println("📄 Q&A Processing PDF: ${pdfSource.fileName}")
-
-                    // Extract dengan Dispatchers.IO
-                    val extractedText = withContext(kotlinx.coroutines.Dispatchers.IO) {
-                        com.example.notebook.utils.FileHelper.readTextFromFile(pdfSource.filePath)
-                    }
-
-                    if (extractedText != null && extractedText.length > 100) {
-                        println("✅ Q&A: Using extracted text (${extractedText.length} chars)")
-
-                        // Build context DENGAN Dispatchers.IO
-                        val documentContext = withContext(kotlinx.coroutines.Dispatchers.IO) {
-                            buildDocumentContext()
                         }
 
-                        val result = geminiRepository.chatWithDocument(
-                            userMessage = message,
-                            documentContext = documentContext,
-                            chatHistory = chatHistory
-                        )
-                        handleChatResult(notebookId, result)
-                    } else {
-                        println("⚠️ Using Gemini Vision (${extractedText?.length ?: 0} chars)")
-                        val result = geminiRepository.chatWithPdfFile(
-                            userMessage = message,
-                            pdfFilePath = pdfSource.filePath,
-                            pdfFileName = pdfSource.fileName,
-                            chatHistory = chatHistory
-                        )
-                        handleChatResult(notebookId, result)
-                    }
-                } else {
-                    println("📝 Q&A using text files only")
-                    val documentContext = buildDocumentContext()
                     val result = geminiRepository.chatWithDocument(
                         userMessage = message,
                         documentContext = documentContext,
                         chatHistory = chatHistory
                     )
-                    handleChatResult(notebookId, result)
-                }
 
+                    result.fold(
+                        onSuccess = { aiResponse ->
+                            repository.sendMessage(notebookId, aiResponse, isUserMessage = false)
+                            println("✅ AI response berhasil: ${aiResponse.take(50)}...")
+                        },
+                        onFailure = { error ->
+                            val errorMsg = "Maaf, terjadi error: ${error.message}"
+                            repository.sendMessage(notebookId, errorMsg, isUserMessage = false)
+                            println("❌ Error dari Gemini: ${error.message}")
+                            _errorMessage.value = error.message
+                        }
+                    )
+                }
             } catch (e: Exception) {
-                println("❌ Error Q&A: ${e.message}")
+                println("❌ Error mengirim pesan: ${e.message}")
-                e.printStackTrace()
-                val errorMsg = "Maaf, terjadi error: ${e.message}"
-                repository.sendMessage(notebookId, errorMsg, isUserMessage = false)
                 _errorMessage.value = e.message
             } finally {
                 _isLoading.value = false
@@ -268,21 +233,6 @@ class NotebookViewModel(application: Application) : AndroidViewModel(application
         }
     }
 
-    private suspend fun handleChatResult(notebookId: Int, result: Result<String>) {
-        result.fold(
-            onSuccess = { aiResponse ->
-                repository.sendMessage(notebookId, aiResponse, isUserMessage = false)
-                println("✅ AI response: ${aiResponse.take(50)}...")
-            },
-            onFailure = { error ->
-                val errorMsg = "Maaf, terjadi error: ${error.message}"
-                repository.sendMessage(notebookId, errorMsg, isUserMessage = false)
-                println("❌ Error: ${error.message}")
-                _errorMessage.value = error.message
-            }
-        )
-    }
-
     fun clearChatHistory(notebookId: Int) {
         viewModelScope.launch {
             repository.clearChatHistory(notebookId)
@@ -294,32 +244,23 @@ class NotebookViewModel(application: Application) : AndroidViewModel(application
     private fun buildDocumentContext(): String {
         val context = StringBuilder()
 
-        println("🔍 Building document context dari ${_sources.value.size} sources")
-
         _sources.value.forEach { source ->
-            println("📋 Source: ${source.fileName} | Type: ${source.fileType}")
-
             when (source.fileType) {
-                "Text", "Markdown", "PDF" -> {  // ← TAMBAH "PDF" DI SINI!
+                "Text", "Markdown" -> {
                     val content = com.example.notebook.utils.FileHelper.readTextFromFile(source.filePath)
-                    if (content != null && content.isNotBlank()) {
+                    if (content != null) {
                         context.append("=== ${source.fileName} ===\n")
                         context.append(content)
                         context.append("\n\n")
-                        println("✅ Extracted ${content.length} chars from ${source.fileName}")
-                    } else {
-                        println("⚠️ Failed to extract from ${source.fileName}")
                     }
                 }
                 else -> {
-                    println("⚠️ File type ${source.fileType} not supported")
                     context.append("=== ${source.fileName} ===\n")
                     context.append("[File type ${source.fileType} - content extraction not yet supported]\n\n")
                 }
             }
         }
 
-        println("📦 Total context length: ${context.length} chars")
         return context.toString()
     }
 
@@ -327,45 +268,29 @@ class NotebookViewModel(application: Application) : AndroidViewModel(application
         viewModelScope.launch {
             _isLoading.value = true
             try {
-                // Cek apakah ada PDF
+                val documentContext = buildDocumentContext()
-                val pdfSources = _sources.value.filter { it.fileType == "PDF" }
-                val textSources = _sources.value.filter { it.fileType in listOf("Text", "Markdown") }
 
-                if (pdfSources.isEmpty() && textSources.isEmpty()) {
+                if (documentContext.isEmpty()) {
                     _errorMessage.value = "Tidak ada dokumen untuk diringkas"
                     return@launch
                 }
 
-                // Untuk PDF, coba extract dulu
+                val result = geminiRepository.generateSummary(documentContext)
-                if (pdfSources.isNotEmpty()) {
-                    val pdfSource = pdfSources.first()
-                    println("📄 Processing PDF: ${pdfSource.fileName}")
 
-//                    val extractedText = com.example.notebook.utils.FileHelper.readTextFromFile(pdfSource.filePath)
+                result.fold(
-                    val extractedText = kotlinx.coroutines.withContext(kotlinx.coroutines.Dispatchers.IO) {
+                    onSuccess = { summary ->
-                        com.example.notebook.utils.FileHelper.readTextFromFile(pdfSource.filePath)
+                        repository.sendMessage(
-                    }
+                            notebookId,
-                    if (extractedText != null && extractedText.length > 100) {
+                            "📝 Ringkasan Dokumen:\n\n$summary",
-                        // Text extraction berhasil
+                            isUserMessage = false
-                        println("✅ Using extracted text (${extractedText.length} chars)")
-                        val result = geminiRepository.generateSummary(extractedText)
-                        handleSummaryResult(notebookId, result)
-                    } else {
-                        // Text extraction gagal/terlalu pendek, pakai Gemini Vision
-                        println("⚠️ Extracted text too short (${extractedText?.length ?: 0} chars), using Gemini Vision")
-                        val result = geminiRepository.generateSummaryFromPdfFile(
-                            pdfSource.filePath,
-                            pdfSource.fileName
                         )
-                        handleSummaryResult(notebookId, result)
+                        println("✅ Summary berhasil: ${summary.take(100)}...")
+                    },
+                    onFailure = { error ->
+                        _errorMessage.value = "Error generate summary: ${error.message}"
+                        println("❌ Error generate summary: ${error.message}")
                     }
-                } else {
+                )
-                    // Hanya text files
-                    val documentContext = buildDocumentContext()
-                    val result = geminiRepository.generateSummary(documentContext)
-                    handleSummaryResult(notebookId, result)
-                }
-
             } catch (e: Exception) {
                 _errorMessage.value = e.message
                 println("❌ Error: ${e.message}")
@@ -375,23 +300,6 @@ class NotebookViewModel(application: Application) : AndroidViewModel(application
         }
     }
 
-    private suspend fun handleSummaryResult(notebookId: Int, result: Result<String>) {
-        result.fold(
-            onSuccess = { summary ->
-                repository.sendMessage(
-                    notebookId,
-                    "📝 Ringkasan Dokumen:\n\n$summary",
-                    isUserMessage = false
-                )
-                println("✅ Summary berhasil: ${summary.take(100)}...")
-            },
-            onFailure = { error ->
-                _errorMessage.value = "Error generate summary: ${error.message}"
-                println("❌ Error generate summary: ${error.message}")
-            }
-        )
-    }
-
     fun clearError() {
         _errorMessage.value = null
     }

app/src/main/res/xml/file_paths.xml

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<paths xmlns:android="http://schemas.android.com/apk/res/android">
-    <!-- Internal storage files -->
-    <files-path name="internal_files" path="." />
-
-    <!-- Notebook files -->
-    <files-path name="notebooks" path="notebooks/" />
-
-    <!-- Cache -->
-    <cache-path name="cache" path="." />
-</paths>