Typing Indicator dan Auto Scroll ke Chat Terbaru

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

@@ -5,12 +5,13 @@ import android.content.Intent
 import android.net.Uri
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.animation.core.*
 import androidx.compose.foundation.background
-import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.*
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
@@ -30,10 +31,10 @@ 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.ui.components.MarkdownText
 import com.example.notebook.viewmodel.NotebookViewModel
+import kotlinx.coroutines.launch
 import java.io.File
 import java.text.SimpleDateFormat
 import java.util.*
@@ -58,7 +59,6 @@ fun openFile(context: Context, source: SourceEntity) {
             return
         }
 
-        // Tentukan MIME type
         val mimeType = when (source.fileType) {
             "PDF" -> "application/pdf"
             "Image" -> "image/*"
@@ -71,7 +71,6 @@ fun openFile(context: Context, source: SourceEntity) {
             else -> "*/*"
         }
 
-        // Gunakan FileProvider untuk file di internal storage
         val uri = FileProvider.getUriForFile(
             context,
             "${context.packageName}.fileprovider",
@@ -84,11 +83,9 @@ fun openFile(context: Context, source: SourceEntity) {
             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)
         }
@@ -160,7 +157,7 @@ fun NotebookDetailScreen(
         }
     }
 
-    // Delete confirmation dialog dengan desain modern
+    // Delete confirmation dialog
     if (showDeleteDialog && sourceToDelete != null) {
         AlertDialog(
             onDismissRequest = { showDeleteDialog = false },
@@ -204,7 +201,6 @@ fun NotebookDetailScreen(
         )
     }
 
-    // File picker launcher
     val filePickerLauncher = rememberLauncherForActivityResult(
         contract = ActivityResultContracts.GetContent()
     ) { uri: Uri? ->
@@ -213,13 +209,11 @@ fun NotebookDetailScreen(
         }
     }
 
-    // Load notebook data
     LaunchedEffect(notebookId) {
         println("🚀 NotebookDetailScreen: LaunchedEffect triggered untuk ID: $notebookId")
         viewModel.selectNotebook(notebookId)
     }
 
-    // Debug log untuk state changes
     LaunchedEffect(notebook) {
         println("📝 Notebook state updated: ${notebook?.title ?: "NULL"}")
     }
@@ -309,51 +303,6 @@ fun NotebookDetailScreen(
                                         Icon(Icons.Default.Summarize, null, tint = PrimaryPurple)
                                     }
                                 )
-                                // Debug: Test PDF extraction
-                                Divider(modifier = Modifier.padding(vertical = 4.dp))
-                                DropdownMenuItem(
-                                    text = {
-                                        Text(
-                                            "🔍 Test PDF Extract",
-                                            fontWeight = FontWeight.Medium,
-                                            color = TextPrimary
-                                        )
-                                    },
-                                    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, tint = PrimaryPurple)
-                                    }
-                                )
                             }
                         }
                     }
@@ -364,7 +313,7 @@ fun NotebookDetailScreen(
             )
         },
         bottomBar = {
-            if (selectedTab == 0) { // Chat tab
+            if (selectedTab == 0) {
                 Surface(
                     color = CardBackground,
                     shadowElevation = 8.dp
@@ -457,7 +406,8 @@ fun NotebookDetailScreen(
                 0 -> ChatTab(
                     messages = chatMessages,
                     sources = sources,
-                    onUploadClick = { filePickerLauncher.launch("*/*") }
+                    onUploadClick = { filePickerLauncher.launch("*/*") },
+                    isLoading = isLoading
                 )
                 1 -> SourcesTab(
                     sources = sources,
@@ -479,9 +429,22 @@ fun NotebookDetailScreen(
 fun ChatTab(
     messages: List<ChatMessageEntity>,
     sources: List<SourceEntity>,
-    onUploadClick: () -> Unit
+    onUploadClick: () -> Unit,
+    isLoading: Boolean = false
 ) {
-    if (messages.isEmpty()) {
+    val listState = rememberLazyListState()
+    val coroutineScope = rememberCoroutineScope()
+
+    // Auto scroll ke chat terbaru
+    LaunchedEffect(messages.size) {
+        if (messages.isNotEmpty()) {
+            coroutineScope.launch {
+                listState.animateScrollToItem(messages.size)
+            }
+        }
+    }
+
+    if (messages.isEmpty() && !isLoading) {
         // Empty state dengan desain modern
         Column(
             modifier = Modifier
@@ -538,6 +501,7 @@ fun ChatTab(
         }
     } else {
         LazyColumn(
+            state = listState,
             modifier = Modifier
                 .fillMaxSize()
                 .background(BackgroundWhite),
@@ -547,6 +511,77 @@ fun ChatTab(
             items(messages) { message ->
                 ChatBubble(message = message)
             }
+
+            // Typing indicator saat AI sedang memproses
+            if (isLoading) {
+                item {
+                    TypingIndicator()
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun TypingIndicator() {
+    Row(
+        modifier = Modifier.fillMaxWidth(),
+        horizontalArrangement = Arrangement.Start
+    ) {
+        // AI Avatar
+        Box(
+            modifier = Modifier
+                .size(36.dp)
+                .clip(CircleShape)
+                .background(LightPurple),
+            contentAlignment = Alignment.Center
+        ) {
+            Icon(
+                Icons.Default.AutoAwesome,
+                contentDescription = null,
+                tint = PrimaryPurple,
+                modifier = Modifier.size(20.dp)
+            )
+        }
+        Spacer(modifier = Modifier.width(8.dp))
+
+        // Typing animation card
+        Surface(
+            color = CardBackground,
+            shape = RoundedCornerShape(
+                topStart = 20.dp,
+                topEnd = 20.dp,
+                bottomStart = 4.dp,
+                bottomEnd = 20.dp
+            ),
+            shadowElevation = 1.dp
+        ) {
+            Row(
+                modifier = Modifier.padding(horizontal = 20.dp, vertical = 16.dp),
+                horizontalArrangement = Arrangement.spacedBy(6.dp),
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                // Animated dots
+                repeat(3) { index ->
+                    val infiniteTransition = rememberInfiniteTransition(label = "dot$index")
+                    val scale by infiniteTransition.animateFloat(
+                        initialValue = 0.5f,
+                        targetValue = 1f,
+                        animationSpec = infiniteRepeatable(
+                            animation = tween(600, delayMillis = index * 150),
+                            repeatMode = RepeatMode.Reverse
+                        ),
+                        label = "scale$index"
+                    )
+
+                    Box(
+                        modifier = Modifier
+                            .size(8.dp * scale)
+                            .clip(CircleShape)
+                            .background(TextSecondary.copy(alpha = 0.6f))
+                    )
+                }
+            }
         }
     }
 }
@@ -592,12 +627,19 @@ fun ChatBubble(message: ChatMessageEntity) {
                 ),
                 shadowElevation = if (!message.isUserMessage) 1.dp else 0.dp
             ) {
-                // === GANTI TEXT() MENJADI MarkdownText() DI SINI ===
+                if (message.isUserMessage) {
-                MarkdownText(
+                    Text(
-                    markdown = message.message,
+                        text = message.message,
-                    textColor = if (message.isUserMessage) Color.White else TextPrimary,
+                        modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp),
-                    modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp)
+                        color = Color.White,
-                )
+                        fontSize = 15.sp
+                    )
+                } else {
+                    MarkdownText(
+                        markdown = message.message,
+                        modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp)
+                    )
+                }
             }
 
             Text(
@@ -629,7 +671,6 @@ fun ChatBubble(message: ChatMessageEntity) {
     }
 }
 
-
 @Composable
 fun SourcesTab(
     sources: List<SourceEntity>,
@@ -727,7 +768,6 @@ fun SourceCard(
                 .padding(16.dp),
             verticalAlignment = Alignment.CenterVertically
         ) {
-            // File icon dengan desain modern
             Box(
                 modifier = Modifier
                     .size(48.dp)

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
+    <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_launcher_background"/>
+    <background android:drawable="@drawable/ic_launcher_background"/>
     <foreground android:drawable="@drawable/ic_launcher_foreground"/>
 </adaptive-icon>