feat: parse media group, wip

dao/file.go

@@ -9,6 +9,19 @@ func SaveReceivedFile(receivedFile *ReceivedFile) (*ReceivedFile, error) {
 	return receivedFile, db.Error
 }
 
+func BatchSaveReceivedFiles(receivedFiles []*ReceivedFile) error {
+	if len(receivedFiles) == 0 {
+		return nil
+	}
+	for _, file := range receivedFiles {
+		record, err := GetReceivedFileByChatAndMessageID(file.ChatID, file.MessageID)
+		if err == nil {
+			file.ID = record.ID
+		}
+	}
+	return db.Save(receivedFiles).Error
+}
+
 func GetReceivedFileByChatAndMessageID(chatID int64, messageID int) (*ReceivedFile, error) {
 	var receivedFile ReceivedFile
 	err := db.Where("chat_id = ? AND message_id = ?", chatID, messageID).First(&receivedFile).Error