feat: add message Tauri commands

src-tauri/src/commands/message.rs

@@ -0,0 +1,49 @@
+use crate::models::Message;
+use crate::state::{AppState, BASE_URL};
+
+#[tauri::command]
+pub async fn list_messages(
+    state: tauri::State<'_, AppState>,
+    conversation_id: String,
+) -> Result<Vec<Message>, String> {
+    state
+        .client
+        .get(format!("{}/conversations/{}/messages", BASE_URL, conversation_id))
+        .send()
+        .await
+        .map_err(|e| e.to_string())?
+        .json()
+        .await
+        .map_err(|e| e.to_string())
+}
+
+#[tauri::command]
+pub async fn send_message(
+    state: tauri::State<'_, AppState>,
+    conversation_id: String,
+    content: String,
+) -> Result<Message, String> {
+    let user_id = state
+        .user_id
+        .lock()
+        .unwrap()
+        .clone()
+        .ok_or_else(|| "Not logged in".to_string())?;
+
+    let body = serde_json::json!({
+        "conversation_id": conversation_id,
+        "user_id": user_id,
+        "content": content,
+    });
+
+    state
+        .client
+        .post(format!("{}/messages", BASE_URL))
+        .json(&body)
+        .send()
+        .await
+        .map_err(|e| e.to_string())?
+        .json()
+        .await
+        .map_err(|e| e.to_string())
+}

src-tauri/src/commands/mod.rs

@@ -1,3 +1,4 @@
 pub mod conversation;
+pub mod message;
 pub mod user;
 pub mod workspace;