feat: add reset action for integration watches (#1381)

apps/backend/internal/github/service_watch_reset.go

@@ -0,0 +1,101 @@
+package github
+
+import (
+	"context"
+	"errors"
+
+	"github.com/kandev/kandev/internal/watchreset"
+)
+
+// --- Issue watch reset ---
+
+// githubIssueWatchResetter is the watchreset.Resetter adapter for a single
+// GitHub issue watch. Closes over the store and watch ID so the shared
+// watchreset.Run helper stays integration-agnostic.
+type githubIssueWatchResetter struct {
+	store   *Store
+	watchID string
+}
+
+func (r *githubIssueWatchResetter) ListTaskIDs(ctx context.Context) ([]string, error) {
+	return r.store.ListIssueWatchTaskIDsByWatch(ctx, r.watchID)
+}
+
+func (r *githubIssueWatchResetter) Clear(ctx context.Context) error {
+	return r.store.ResetIssueWatchState(ctx, r.watchID)
+}
+
+// PreviewResetIssueWatch returns how many tasks ResetIssueWatch would
+// cascade-delete. Used by the frontend to populate the confirmation dialog.
+func (s *Service) PreviewResetIssueWatch(ctx context.Context, watchID string) (int, error) {
+	if s.store == nil {
+		return 0, errStoreUnavailable
+	}
+	return watchreset.Preview(ctx, &githubIssueWatchResetter{store: s.store, watchID: watchID})
+}
+
+// ResetIssueWatch is destructive: cascade-deletes every task previously
+// created by the issue watch (including archived), wipes the per-watch
+// dedup rows, and nulls last_polled_at so the next poll re-imports every
+// currently-matching issue. Returns the count of tasks deleted.
+func (s *Service) ResetIssueWatch(ctx context.Context, watchID string) (int, error) {
+	if s.store == nil {
+		return 0, errStoreUnavailable
+	}
+	s.mu.Lock()
+	td := s.cascadeTaskDeleter
+	s.mu.Unlock()
+	if td == nil {
+		return 0, errors.New("github: cascade task deleter not wired; reset unavailable")
+	}
+	res, err := watchreset.Run(ctx,
+		&githubIssueWatchResetter{store: s.store, watchID: watchID},
+		td, s.logger)
+	return res.TasksDeleted, err
+}
+
+// --- Review watch reset ---
+
+// githubReviewWatchResetter is the watchreset.Resetter adapter for a single
+// GitHub review watch.
+type githubReviewWatchResetter struct {
+	store   *Store
+	watchID string
+}
+
+func (r *githubReviewWatchResetter) ListTaskIDs(ctx context.Context) ([]string, error) {
+	return r.store.ListReviewPRTaskIDsByWatch(ctx, r.watchID)
+}
+
+func (r *githubReviewWatchResetter) Clear(ctx context.Context) error {
+	return r.store.ResetReviewWatchState(ctx, r.watchID)
+}
+
+// PreviewResetReviewWatch returns how many tasks ResetReviewWatch would
+// cascade-delete. Used by the frontend to populate the confirmation dialog.
+func (s *Service) PreviewResetReviewWatch(ctx context.Context, watchID string) (int, error) {
+	if s.store == nil {
+		return 0, errStoreUnavailable
+	}
+	return watchreset.Preview(ctx, &githubReviewWatchResetter{store: s.store, watchID: watchID})
+}
+
+// ResetReviewWatch is destructive: cascade-deletes every task previously
+// created by the review watch (including archived), wipes the per-watch
+// dedup rows, and nulls last_polled_at so the next poll re-imports every
+// currently-matching PR. Returns the count of tasks deleted.
+func (s *Service) ResetReviewWatch(ctx context.Context, watchID string) (int, error) {
+	if s.store == nil {
+		return 0, errStoreUnavailable
+	}
+	s.mu.Lock()
+	td := s.cascadeTaskDeleter
+	s.mu.Unlock()
+	if td == nil {
+		return 0, errors.New("github: cascade task deleter not wired; reset unavailable")
+	}
+	res, err := watchreset.Run(ctx,
+		&githubReviewWatchResetter{store: s.store, watchID: watchID},
+		td, s.logger)
+	return res.TasksDeleted, err
+}