[feature] Notify accounts when a status they've interacted with has been edited (#4157)

This pull request adds sending notifications to local accounts that have interacted with a status, if we receive or create a new edit for that status.

closes https://codeberg.org/superseriousbusiness/gotosocial/issues/3991
Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4157
Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Co-committed-by: tobi <tobi.smethurst@protonmail.com>

internal/db/bundb/status.go

@@ -732,3 +732,105 @@ func (s *statusDB) GetDirectStatusIDsBatch(ctx context.Context, minID string, ma
 	}
 	return statusIDs, nil
 }
+
+func (s *statusDB) GetStatusInteractions(
+	ctx context.Context,
+	statusID string,
+	localOnly bool,
+) ([]gtsmodel.Interaction, error) {
+	// Prepare to get interactions.
+	interactions := []gtsmodel.Interaction{}
+
+	// Gather faves.
+	faves, err := s.state.DB.GetStatusFaves(ctx, statusID)
+	if err != nil && !errors.Is(err, db.ErrNoEntries) {
+		return nil, err
+	}
+
+	for _, fave := range faves {
+		// Get account at least.
+		if fave.Account == nil {
+			fave.Account, err = s.state.DB.GetAccountByID(ctx, fave.AccountID)
+			if err != nil {
+				log.Errorf(ctx, "error getting account for fave: %v", err)
+				continue
+			}
+		}
+
+		if localOnly && !fave.Account.IsLocal() {
+			// Skip not local.
+			continue
+		}
+
+		interactions = append(interactions, fave)
+	}
+
+	// Gather replies.
+	replies, err := s.state.DB.GetStatusReplies(ctx, statusID)
+	if err != nil && !errors.Is(err, db.ErrNoEntries) {
+		return nil, err
+	}
+
+	for _, reply := range replies {
+		// Get account at least.
+		if reply.Account == nil {
+			reply.Account, err = s.state.DB.GetAccountByID(ctx, reply.AccountID)
+			if err != nil {
+				log.Errorf(ctx, "error getting account for reply: %v", err)
+				continue
+			}
+		}
+
+		if localOnly && !reply.Account.IsLocal() {
+			// Skip not local.
+			continue
+		}
+
+		interactions = append(interactions, reply)
+	}
+
+	// Gather boosts.
+	boosts, err := s.state.DB.GetStatusBoosts(ctx, statusID)
+	if err != nil && !errors.Is(err, db.ErrNoEntries) {
+		return nil, err
+	}
+
+	for _, boost := range boosts {
+		// Get account at least.
+		if boost.Account == nil {
+			boost.Account, err = s.state.DB.GetAccountByID(ctx, boost.AccountID)
+			if err != nil {
+				log.Errorf(ctx, "error getting account for boost: %v", err)
+				continue
+			}
+		}
+
+		if localOnly && !boost.Account.IsLocal() {
+			// Skip not local.
+			continue
+		}
+
+		interactions = append(interactions, boost)
+	}
+
+	if len(interactions) == 0 {
+		return nil, db.ErrNoEntries
+	}
+
+	return interactions, nil
+}
+
+func (s *statusDB) GetStatusByEditID(
+	ctx context.Context,
+	editID string,
+) (*gtsmodel.Status, error) {
+	edit, err := s.state.DB.GetStatusEditByID(
+		gtscontext.SetBarebones(ctx),
+		editID,
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return s.GetStatusByID(ctx, edit.StatusID)
+}