feat: Implement Telegram-style message animations and frosted glass effects in ChatDetailScreen

app/src/main/java/com/rosetta/messenger/ui/chats/ChatDetailScreen.kt

@@ -57,6 +57,18 @@ import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import java.text.SimpleDateFormat
 import java.util.*
+import androidx.compose.ui.geometry.Rect
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.graphics.Outline
+import androidx.compose.ui.graphics.Path
+import androidx.compose.ui.graphics.Shape
+import androidx.compose.ui.unit.Density
+import androidx.compose.ui.unit.LayoutDirection
+import androidx.compose.ui.draw.shadow
+import androidx.compose.animation.core.CubicBezierEasing
+
+// Telegram's CubicBezier interpolator (0.199, 0.010, 0.279, 0.910)
+val TelegramEasing = CubicBezierEasing(0.199f, 0.010f, 0.279f, 0.910f)
 
 /**
  * Модель сообщения (Legacy - для совместимости)
@@ -122,7 +134,7 @@ fun ChatDetailScreen(
 ) {
     val keyboardController = LocalSoftwareKeyboardController.current
     val focusManager = LocalFocusManager.current
-    val backgroundColor = if (isDarkTheme) Color(0xFF1A1A1A) else Color(0xFFFFFFFF)
+    val backgroundColor = if (isDarkTheme) Color(0xFF0E0E0E) else Color(0xFFEFEFF3)
     val textColor = if (isDarkTheme) Color.White else Color.Black
     val secondaryTextColor = if (isDarkTheme) Color(0xFF8E8E93) else Color(0xFF666666)
     val inputBackgroundColor = if (isDarkTheme) Color(0xFF2A2A2A) else Color(0xFFF0F0F0)
@@ -131,7 +143,7 @@ fun ChatDetailScreen(
     var isVisible by remember { mutableStateOf(false) }
     val screenAlpha by animateFloatAsState(
         targetValue = if (isVisible) 1f else 0f,
-        animationSpec = tween(durationMillis = 180, easing = FastOutSlowInEasing),
+        animationSpec = tween(durationMillis = 250, easing = TelegramEasing),
         label = "screenFade"
     )
     
@@ -242,16 +254,16 @@ fun ChatDetailScreen(
             .fillMaxSize()
             .graphicsLayer { alpha = screenAlpha }
     ) {
-        // Цвета для матового стекла
+        // Цвета для матового стекла (более прозрачные для лучшего blur эффекта)
         val glassHeaderBackground = if (isDarkTheme) 
-            Color(0xFF1A1A1A).copy(alpha = 0.85f) 
+            Color(0xFF1A1A1A).copy(alpha = 0.7f) 
         else 
-            Color(0xFFF5F5F5).copy(alpha = 0.85f)
+            Color(0xFFF5F5F5).copy(alpha = 0.7f)
         
         val glassInputPanelBackground = if (isDarkTheme) 
-            Color(0xFF1A1A1A).copy(alpha = 0.88f) 
+            Color(0xFF1A1A1A).copy(alpha = 0.75f) 
         else 
-            Color(0xFFF5F5F5).copy(alpha = 0.88f)
+            Color(0xFFF5F5F5).copy(alpha = 0.75f)
         
         Scaffold(
             topBar = {
@@ -260,6 +272,7 @@ fun ChatDetailScreen(
                     modifier = Modifier
                         .fillMaxWidth()
                         .background(glassHeaderBackground)
+                        .blur(radius = 20.dp)  // Blur эффект для frosted glass
                 ) {
                     Row(
                     modifier = Modifier
@@ -554,24 +567,223 @@ fun ChatDetailScreen(
 }
 
 /**
- * 🚀 Пузырек сообщения с fade-in анимацией (только при первом появлении)
+ * 🚀 Анимация появления сообщения Telegram-style
+ */
+@Composable
+fun rememberMessageEnterAnimation(messageId: String): Pair<Float, Float> {
+    var animationPlayed by remember(messageId) { mutableStateOf(false) }
+    
+    val alpha by animateFloatAsState(
+        targetValue = if (animationPlayed) 1f else 0f,
+        animationSpec = tween(
+            durationMillis = 250,
+            easing = TelegramEasing
+        ),
+        label = "messageAlpha"
+    )
+    
+    val translationY by animateFloatAsState(
+        targetValue = if (animationPlayed) 0f else 20f,
+        animationSpec = tween(
+            durationMillis = 250,
+            easing = TelegramEasing
+        ),
+        label = "messageTranslationY"
+    )
+    
+    LaunchedEffect(messageId) {
+        delay(16) // One frame delay
+        animationPlayed = true
+    }
+    
+    return Pair(alpha, translationY)
+}
+
+/**
+ * 🚀 Telegram-style bubble shape с хвостиком
+ */
+class TelegramBubbleShape(
+    private val isOutgoing: Boolean,
+    private val radius: Dp = 18.dp,
+    private val tailSize: Dp = 6.dp
+) : Shape {
+    override fun createOutline(
+        size: Size,
+        layoutDirection: LayoutDirection,
+        density: Density
+    ): Outline {
+        val path = Path()
+        val radiusPx = with(density) { radius.toPx() }
+        val tailSizePx = with(density) { tailSize.toPx() }
+        val padding = with(density) { 2.dp.toPx() }
+        
+        if (isOutgoing) {
+            // Исходящее сообщение - хвостик справа внизу
+            // Начинаем с правого нижнего угла (перед хвостиком)
+            path.moveTo(size.width - 2.6f * density.density, size.height - padding)
+            
+            // Линия к левому нижнему углу
+            path.lineTo(padding + radiusPx, size.height - padding)
+            
+            // Левый нижний угол
+            path.arcTo(
+                rect = Rect(
+                    left = padding,
+                    top = size.height - padding - radiusPx * 2,
+                    right = padding + radiusPx * 2,
+                    bottom = size.height - padding
+                ),
+                startAngleDegrees = 90f,
+                sweepAngleDegrees = 90f,
+                forceMoveTo = false
+            )
+            
+            // Левая сторона вверх
+            path.lineTo(padding, padding + radiusPx)
+            
+            // Левый верхний угол
+            path.arcTo(
+                rect = Rect(
+                    left = padding,
+                    top = padding,
+                    right = padding + radiusPx * 2,
+                    bottom = padding + radiusPx * 2
+                ),
+                startAngleDegrees = 180f,
+                sweepAngleDegrees = 90f,
+                forceMoveTo = false
+            )
+            
+            // Верхняя сторона вправо
+            path.lineTo(size.width - 8.dp.toPx() * density.density - radiusPx, padding)
+            
+            // Правый верхний угол (с небольшим отступом для хвостика)
+            path.arcTo(
+                rect = Rect(
+                    left = size.width - 8.dp.toPx() * density.density - radiusPx * 2,
+                    top = padding,
+                    right = size.width - 8.dp.toPx() * density.density,
+                    bottom = padding + radiusPx * 2
+                ),
+                startAngleDegrees = 270f,
+                sweepAngleDegrees = 90f,
+                forceMoveTo = false
+            )
+            
+            // Правая сторона вниз (до хвостика)
+            path.lineTo(
+                size.width - 8.dp.toPx() * density.density,
+                size.height - padding - tailSizePx - 3.dp.toPx() * density.density
+            )
+            
+            // Хвостик (маленькая дуга)
+            path.arcTo(
+                rect = Rect(
+                    left = size.width - 8.dp.toPx() * density.density,
+                    top = size.height - padding - tailSizePx * 2 - 9.dp.toPx() * density.density,
+                    right = size.width - 7.dp.toPx() * density.density + tailSizePx * 2,
+                    bottom = size.height - padding - 1.dp.toPx() * density.density
+                ),
+                startAngleDegrees = 180f,
+                sweepAngleDegrees = -83f,
+                forceMoveTo = false
+            )
+        } else {
+            // Входящее сообщение - хвостик слева внизу
+            path.moveTo(2.6f * density.density, size.height - padding)
+            
+            // Линия к правому нижнему углу
+            path.lineTo(size.width - padding - radiusPx, size.height - padding)
+            
+            // Правый нижний угол
+            path.arcTo(
+                rect = Rect(
+                    left = size.width - padding - radiusPx * 2,
+                    top = size.height - padding - radiusPx * 2,
+                    right = size.width - padding,
+                    bottom = size.height - padding
+                ),
+                startAngleDegrees = 90f,
+                sweepAngleDegrees = -90f,
+                forceMoveTo = false
+            )
+            
+            // Правая сторона вверх
+            path.lineTo(size.width - padding, padding + radiusPx)
+            
+            // Правый верхний угол
+            path.arcTo(
+                rect = Rect(
+                    left = size.width - padding - radiusPx * 2,
+                    top = padding,
+                    right = size.width - padding,
+                    bottom = padding + radiusPx * 2
+                ),
+                startAngleDegrees = 0f,
+                sweepAngleDegrees = -90f,
+                forceMoveTo = false
+            )
+            
+            // Верхняя сторона влево
+            path.lineTo(8.dp.toPx() * density.density + radiusPx, padding)
+            
+            // Левый верхний угол
+            path.arcTo(
+                rect = Rect(
+                    left = 8.dp.toPx() * density.density,
+                    top = padding,
+                    right = 8.dp.toPx() * density.density + radiusPx * 2,
+                    bottom = padding + radiusPx * 2
+                ),
+                startAngleDegrees = 270f,
+                sweepAngleDegrees = -90f,
+                forceMoveTo = false
+            )
+            
+            // Левая сторона вниз (до хвостика)
+            path.lineTo(
+                8.dp.toPx() * density.density,
+                size.height - padding - tailSizePx - 3.dp.toPx() * density.density
+            )
+            
+            // Хвостик (маленькая дуга)
+            path.arcTo(
+                rect = Rect(
+                    left = 7.dp.toPx() * density.density - tailSizePx * 2,
+                    top = size.height - padding - tailSizePx * 2 - 9.dp.toPx() * density.density,
+                    right = 8.dp.toPx() * density.density,
+                    bottom = size.height - padding - 1.dp.toPx() * density.density
+                ),
+                startAngleDegrees = 0f,
+                sweepAngleDegrees = 83f,
+                forceMoveTo = false
+            )
+        }
+        
+        path.close()
+        return Outline.Generic(path)
+    }
+}
+
+/**
+ * 🚀 Пузырек сообщения Telegram-style с хвостиком
  */
 @Composable
 private fun MessageBubble(
     message: ChatMessage,
     isDarkTheme: Boolean,
-    index: Int = 0  // Для staggered анимации
+    index: Int = 0
 ) {
-    // 🔥 Fade-in + slide анимация - используем key для предотвращения повторной анимации
-    var isVisible by remember(message.id) { mutableStateOf(true) }  // Сразу true - без повторной анимации
+    // Telegram-style enter animation
+    val (alpha, translationY) = rememberMessageEnterAnimation(message.id)
     
     val bubbleColor = if (message.isOutgoing) {
         PrimaryBlue
     } else {
-        if (isDarkTheme) Color(0xFF2A2A2A) else Color(0xFFE8E8E8)
+        if (isDarkTheme) Color(0xFF212121) else Color(0xFFFFFFFF)
     }
     val textColor = if (message.isOutgoing) Color.White else {
-        if (isDarkTheme) Color.White else Color.Black
+        if (isDarkTheme) Color.White else Color(0xFF000000)
     }
     val timeColor = if (message.isOutgoing) Color.White.copy(alpha = 0.7f) else {
         if (isDarkTheme) Color(0xFF8E8E93) else Color(0xFF666666)
@@ -582,22 +794,39 @@ private fun MessageBubble(
     Row(
         modifier = Modifier
             .fillMaxWidth()
-            .padding(vertical = 2.dp),
+            .padding(vertical = 2.dp)
+            .graphicsLayer {
+                this.alpha = alpha
+                this.translationY = translationY
+            },
         horizontalArrangement = if (message.isOutgoing) Arrangement.End else Arrangement.Start
     ) {
         Box(
             modifier = Modifier
                 .widthIn(max = 280.dp)
+                .shadow(
+                    elevation = if (message.isOutgoing) 0.dp else 0.5.dp,
+                    shape = TelegramBubbleShape(
+                        isOutgoing = message.isOutgoing,
+                        radius = 18.dp,
+                        tailSize = 6.dp
+                    ),
+                    clip = false
+                )
                 .clip(
-                    RoundedCornerShape(
-                        topStart = 16.dp,
-                        topEnd = 16.dp,
-                        bottomStart = if (message.isOutgoing) 16.dp else 4.dp,
-                        bottomEnd = if (message.isOutgoing) 4.dp else 16.dp
+                    TelegramBubbleShape(
+                        isOutgoing = message.isOutgoing,
+                        radius = 18.dp,
+                        tailSize = 6.dp
                     )
                 )
                 .background(bubbleColor)
-                .padding(horizontal = 12.dp, vertical = 8.dp)
+                .padding(
+                    start = if (message.isOutgoing) 12.dp else 16.dp,
+                    end = if (message.isOutgoing) 16.dp else 12.dp,
+                    top = 8.dp,
+                    bottom = 8.dp
+                )
         ) {
             Column {
                 AppleEmojiText(
@@ -650,7 +879,7 @@ private fun DateHeader(
     var isVisible by remember { mutableStateOf(false) }
     val alpha by animateFloatAsState(
         targetValue = if (isVisible) 1f else 0f,
-        animationSpec = tween(durationMillis = 200, easing = FastOutSlowInEasing),
+        animationSpec = tween(durationMillis = 250, easing = TelegramEasing),
         label = "dateAlpha"
     )
     
@@ -771,6 +1000,7 @@ private fun MessageInputBar(
             modifier = Modifier
                 .fillMaxWidth()
                 .background(panelBackground)
+                .blur(radius = 20.dp)  // Blur эффект для frosted glass
         ) {
             // Верхняя линия для разделения (эффект стекла)
             Box(