get all room endpoint + clean fil structure

src/chat/handlers.rs

@@ -160,13 +160,6 @@ pub async fn send_message(
         Ok(_) => (StatusCode::NOT_FOUND, "Conversation not found".to_string()),
         Err(err) => (StatusCode::INTERNAL_SERVER_ERROR, format!("Error from DB: {err}")),
     }
-/*
-    match result {
-        Ok(rows) if rows > 0 => (StatusCode::OK, "added message succesfully".to_string()),
-        Ok(_) => (StatusCode::NOT_FOUND, "not able to add the message, conversation may not exist".to_string() ),
-        Err(err) => (StatusCode::INTERNAL_SERVER_ERROR, format!("Error when adding the message : {err}")),
-    }
-*/
 
 }
 
@@ -222,4 +215,51 @@ pub async fn get_message(
 
     Ok((StatusCode::OK, serde_json::to_string(&messages).unwrap()))
 
+}
+
+
+#[derive(Serialize)]
+struct User {
+    id: i32,
+    username: String,
+    display_name: String,
+}
+
+
+pub async fn get_hotel_users(
+    State(state): State<AppState>,
+    AuthClaims { hotel_id, .. }: AuthClaims,
+) -> impl IntoResponse {
+    let conn = match state.logs_pool.get() {
+        Ok(c) => c,
+        Err(_) => return (StatusCode::INTERNAL_SERVER_ERROR, "DB connection error".to_string()),
+    };
+
+    let mut stmt = match conn.prepare(
+        "SELECT id, username, displayname FROM users WHERE hotel_id = ?1",
+    ) {
+        Ok(s) => s,
+        Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("Prepare failed: {}", e)),
+    };
+
+    let users_iter = match stmt.query_map(params![hotel_id], |row| {
+        Ok(User {
+            id: row.get(0)?,
+            username: row.get(1)?,
+            display_name: row.get(2)?,
+        })
+    }) {
+        Ok(iter) => iter,
+        Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("Query failed: {}", e)),
+    };
+
+    let users: Vec<User> = match users_iter.collect::<Result<Vec<_>, _>>() {
+        Ok(u) => u,
+        Err(e) => return (StatusCode::INTERNAL_SERVER_ERROR, format!("Collect failed: {}", e)),
+    };
+
+    match serde_json::to_string(&users) {
+        Ok(json) => (StatusCode::OK, json),
+        Err(e) => (StatusCode::INTERNAL_SERVER_ERROR, format!("Serialization failed: {}", e)),
+    }
 }