[MM-53291] Data retention improvements (#24253)

* adding new migration for RetentionIdsForDeletion, changing logic for deleting orphaned reactions. Updating delete user and channel endpoints to remove respective reactions

server/channels/store/retrylayer/retrylayer.go

@@ -6806,27 +6806,6 @@ func (s *RetryLayerPostStore) Delete(postID string, timestamp int64, deleteByID
 
 }
 
-func (s *RetryLayerPostStore) DeleteOrphanedRows(limit int) (int64, error) {
-
-	tries := 0
-	for {
-		result, err := s.PostStore.DeleteOrphanedRows(limit)
-		if err == nil {
-			return result, nil
-		}
-		if !isRepeatableError(err) {
-			return result, err
-		}
-		tries++
-		if tries >= 3 {
-			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
-			return result, err
-		}
-		timepkg.Sleep(100 * timepkg.Millisecond)
-	}
-
-}
-
 func (s *RetryLayerPostStore) Get(ctx context.Context, id string, opts model.GetPostsOptions, userID string, sanitizeOptions map[string]bool) (*model.PostList, error) {
 
 	tries := 0
@@ -8336,21 +8315,21 @@ func (s *RetryLayerReactionStore) DeleteAllWithEmojiName(emojiName string) error
 
 }
 
-func (s *RetryLayerReactionStore) DeleteOrphanedRows(limit int) (int64, error) {
+func (s *RetryLayerReactionStore) DeleteOrphanedRowsByIds(r *model.RetentionIdsForDeletion) error {
 
 	tries := 0
 	for {
-		result, err := s.ReactionStore.DeleteOrphanedRows(limit)
+		err := s.ReactionStore.DeleteOrphanedRowsByIds(r)
 		if err == nil {
-			return result, nil
+			return nil
 		}
 		if !isRepeatableError(err) {
-			return result, err
+			return err
 		}
 		tries++
 		if tries >= 3 {
 			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
-			return result, err
+			return err
 		}
 		timepkg.Sleep(100 * timepkg.Millisecond)
 	}
@@ -8420,6 +8399,27 @@ func (s *RetryLayerReactionStore) PermanentDeleteBatch(endTime int64, limit int6
 
 }
 
+func (s *RetryLayerReactionStore) PermanentDeleteByUser(userID string) error {
+
+	tries := 0
+	for {
+		err := s.ReactionStore.PermanentDeleteByUser(userID)
+		if err == nil {
+			return nil
+		}
+		if !isRepeatableError(err) {
+			return err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
 func (s *RetryLayerReactionStore) Save(reaction *model.Reaction) (*model.Reaction, error) {
 
 	tries := 0
@@ -8819,6 +8819,27 @@ func (s *RetryLayerRetentionPolicyStore) GetCount() (int64, error) {
 
 }
 
+func (s *RetryLayerRetentionPolicyStore) GetIdsForDeletionByTableName(tableName string, limit int) ([]*model.RetentionIdsForDeletion, error) {
+
+	tries := 0
+	for {
+		result, err := s.RetentionPolicyStore.GetIdsForDeletionByTableName(tableName, limit)
+		if err == nil {
+			return result, nil
+		}
+		if !isRepeatableError(err) {
+			return result, err
+		}
+		tries++
+		if tries >= 3 {
+			err = errors.Wrap(err, "giving up after 3 consecutive repeatable transaction failures")
+			return result, err
+		}
+		timepkg.Sleep(100 * timepkg.Millisecond)
+	}
+
+}
+
 func (s *RetryLayerRetentionPolicyStore) GetTeamPoliciesCountForUser(userID string) (int64, error) {
 
 	tries := 0