add link to the thread of a message

back/db/api-db.ts

@@ -38,6 +38,7 @@ export async function getRooms(mailboxId: number) {
             room.room_type AS roomType,
             mailbox_message.mailbox_id AS mailboxId,
             app_thread.parent_id
+            
         FROM app_room room
         INNER JOIN message ON message.message_id = room.message_id
         INNER JOIN mailbox_message ON mailbox_message.message_id = message.message_id
@@ -55,6 +56,7 @@ export async function getRooms(mailboxId: number) {
                 )
         ) notSeenRoom ON notSeenRoom.room_id = room.room_id
 
+        -- get not seen in thread
         LEFT JOIN (
             SELECT app_room_message.message_id, app_thread.parent_id
             FROM app_room
@@ -89,7 +91,8 @@ export async function getMessages(roomId: number) {
             subjectT.value AS subject,
             content.text AS content,
             message.idate AS date,
-            GROUP_CONCAT(flagT.flag_name) AS flags
+            GROUP_CONCAT(flagT.flag_name) AS flags,
+            thread.room_id AS thread
         FROM app_room_message msg
 
         ${queryFromId} fromT ON msg.message_id = fromT.message_id
@@ -120,6 +123,13 @@ export async function getMessages(roomId: number) {
         LEFT JOIN flag_name flagT ON flagT.flag_id = flag.flag_id
 
         INNER JOIN message ON message.message_id = msg.message_id
+
+        -- get room_id of thread room with this message as origin
+        LEFT JOIN app_room thread ON (
+            thread.message_id = msg.message_id AND
+            msg.room_id != thread.room_id AND
+            thread.room_type = 4
+        )
         
         WHERE msg.room_id = ?
         GROUP BY msg.message_id