Описание изменений

backend/db/migrations/functions/link_guest_messages.sql

@@ -0,0 +1,56 @@
+CREATE OR REPLACE FUNCTION link_guest_messages(
+  p_user_id INTEGER,
+  p_guest_id VARCHAR(255)
+) RETURNS VOID AS $$
+DECLARE
+  v_conversation_id INTEGER;
+  v_count INTEGER;
+BEGIN
+  -- Логируем входные параметры
+  RAISE NOTICE 'Linking messages for user_id: %, guest_id: %', p_user_id, p_guest_id;
+
+  -- Проверяем наличие гостевых сообщений
+  SELECT COUNT(*) INTO v_count
+  FROM guest_messages
+  WHERE guest_id = p_guest_id;
+  
+  RAISE NOTICE 'Found % guest messages', v_count;
+
+  -- Создаем новую беседу
+  INSERT INTO conversations (user_id, created_at, updated_at)
+  VALUES (p_user_id, NOW(), NOW())
+  RETURNING id INTO v_conversation_id;
+  
+  RAISE NOTICE 'Created conversation with id: %', v_conversation_id;
+
+  -- Копируем сообщения пользователя
+  WITH inserted_messages AS (
+    INSERT INTO messages (
+      conversation_id,
+      sender_type,
+      sender_id,
+      content,
+      role,
+      channel,
+      guest_message_id,
+      created_at
+    )
+    SELECT 
+      v_conversation_id,
+      CASE WHEN is_ai THEN 'assistant' ELSE 'user' END,
+      CASE WHEN NOT is_ai THEN p_user_id ELSE NULL END,
+      content,
+      CASE WHEN is_ai THEN 'assistant' ELSE 'user' END,
+      'chat',
+      id,  -- Сохраняем связь с гостевым сообщением
+      created_at
+    FROM guest_messages
+    WHERE guest_id = p_guest_id
+    ORDER BY created_at
+    RETURNING id
+  )
+  SELECT COUNT(*) INTO v_count FROM inserted_messages;
+  
+  RAISE NOTICE 'Inserted % messages', v_count;
+END;
+$$ LANGUAGE plpgsql;