Fix MAX emoji attachments

android/app/src/main/java/xyz/kusoft/qmax/MainActivity.kt

@@ -2233,6 +2233,7 @@ private fun replyPreviewBody(message: MessageDto): String {
     message.text?.takeIf { it.isNotBlank() }?.let { return it }
     val attachment = message.attachments.firstOrNull() ?: return "Message"
     return when {
+        attachment.isEmojiAttachment() -> "Emoji"
         attachment.isImageAttachment() -> "Photo"
         attachment.isVideoAttachment() -> "Video"
         attachment.isVoiceAttachment() -> "Voice message"
@@ -2389,6 +2390,13 @@ private fun AttachmentView(
     val cachedImagePath = state.cachedImagePaths[attachment.id]
     when {
         attachment.isContactAttachment() -> ContactAttachment(attachment, vm)
+        attachment.isEmojiAttachment() -> EmojiAttachment(
+            attachment,
+            url,
+            session.accessToken,
+            cachedImagePath,
+            vm
+        )
         attachment.isImageAttachment() -> ImageAttachment(
             attachment,
             url,
@@ -2403,6 +2411,27 @@ private fun AttachmentView(
     }
 }
 
+@Composable
+private fun EmojiAttachment(
+    attachment: AttachmentDto,
+    url: String,
+    token: String,
+    cachedImagePath: String?,
+    vm: QMaxViewModel
+) {
+    LaunchedEffect(attachment.id, url) {
+        vm.cacheImage(attachment)
+    }
+    val model = cachedImagePath?.let(::File) ?: imageRequest(url, token)
+    val emojiSize = if (attachment.fileSizeBytes <= 2_048L) 22.dp else 44.dp
+    AsyncImage(
+        model = model,
+        contentDescription = attachment.fileName,
+        contentScale = ContentScale.Fit,
+        modifier = Modifier.size(emojiSize)
+    )
+}
+
 @Composable
 private fun ImageAttachment(
     attachment: AttachmentDto,
@@ -3294,12 +3323,21 @@ private fun imageRequest(url: String, token: String): ImageRequest {
 }
 
 private fun AttachmentDto.isImageAttachment(): Boolean {
+    if (isEmojiAttachment()) {
+        return false
+    }
     return kind.equals("Image", true) ||
         kind.equals("Gif", true) ||
         contentType.startsWith("image/", ignoreCase = true) ||
         extension() in setOf("jpg", "jpeg", "png", "webp", "gif", "bmp", "heic", "heif")
 }
 
+private fun AttachmentDto.isEmojiAttachment(): Boolean {
+    val normalizedFileName = fileName.lowercase(Locale.ROOT)
+    return normalizedFileName.startsWith("max-emoji-") ||
+        kind.equals("Emoji", true)
+}
+
 private fun AttachmentDto.isContactAttachment(): Boolean {
     return kind.equals("Contact", true) ||
         contentType.contains("vcard", ignoreCase = true) ||