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Author: Android-PowerUser

app/src/main/kotlin/com/google/ai/sample/feature/multimodal/PhotoReasoningChatState.kt

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+package com.google.ai.sample.feature.multimodal
+
+import androidx.compose.runtime.toMutableStateList
+
+class PhotoReasoningChatState(
+    messages: List<PhotoReasoningMessage> = emptyList()
+) {
+    private val _messages: MutableList<PhotoReasoningMessage> = messages.toMutableStateList()
+    val messages: List<PhotoReasoningMessage> = _messages
+
+    fun addMessage(msg: PhotoReasoningMessage) {
+        _messages.add(msg)
+    }
+
+    fun replaceLastPendingMessage() {
+        val lastMessage = _messages.lastOrNull()
+        lastMessage?.let {
+            val newMessage = lastMessage.apply { isPending = false }
+            _messages.removeLast()
+            _messages.add(newMessage)
+        }
+    }
+    
+    fun clearMessages() {
+        _messages.clear()
+    }
+}

app/src/main/kotlin/com/google/ai/sample/feature/multimodal/PhotoReasoningMessage.kt

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+package com.google.ai.sample.feature.multimodal
+
+import java.util.UUID
+
+enum class PhotoParticipant {
+    USER, MODEL, ERROR
+}
+
+data class PhotoReasoningMessage(
+    val id: String = UUID.randomUUID().toString(),
+    var text: String = "",
+    val participant: PhotoParticipant = PhotoParticipant.USER,
+    var isPending: Boolean = false,
+    val imageUris: List<String> = emptyList() // Store image URIs for multimodal messages
+)