fix: pass watchlist status to anime detail page

Anime detail page never looked up or passed the user's watchlist
status, so the dropdown always showed 'Add to Watchlist'. Now
queries watch_list_entry and passes Status and WatchlistIDs.

internal/anime/handler/handler.go

@@ -253,9 +253,17 @@ func (h *AnimeHandler) HandleAnimeDetails(c *gin.Context) {
 	}
 
 	user, _ := c.Get("User")
+	status := ""
+	var watchlistIDs []int64
 	ep := 1
 	var cwSeconds float64
 	if u, ok := user.(*domain.User); ok {
+		entry, err := h.watchlistSvc.GetWatchListEntry(c.Request.Context(), u.ID, int64(id))
+		if err == nil {
+			status = entry.Status
+			watchlistIDs = []int64{entry.AnimeID}
+		}
+
 		cwEntry, err := h.watchlistSvc.GetContinueWatchingEntry(c.Request.Context(), u.ID, int64(id))
 		if err == nil && cwEntry.CurrentEpisode.Valid {
 			ep = int(cwEntry.CurrentEpisode.Int64)
@@ -267,6 +275,8 @@ func (h *AnimeHandler) HandleAnimeDetails(c *gin.Context) {
 		"Anime":                anime,
 		"CurrentPath":          fmt.Sprintf("/anime/%d", id),
 		"User":                 user,
+		"Status":               status,
+		"WatchlistIDs":         watchlistIDs,
 		"ContinueWatchingEp":   ep,
 		"ContinueWatchingTime": cwSeconds,
 	})

internal/domain/watchlist.go

@@ -12,6 +12,7 @@ type WatchlistService interface {
 	UpdateEntry(ctx context.Context, userID string, animeID int64, status string) error
 	RemoveEntry(ctx context.Context, userID string, animeID int64) error
 	GetWatchlist(ctx context.Context, userID string) ([]UserWatchListRow, error)
+	GetWatchListEntry(ctx context.Context, userID string, animeID int64) (WatchlistEntry, error)
 	GetContinueWatchingEntry(ctx context.Context, userID string, animeID int64) (db.ContinueWatchingEntry, error)
 	DeleteContinueWatching(ctx context.Context, userID string, animeID int64) error
 }
@@ -22,6 +23,7 @@ type WatchlistRepository interface {
 	UpsertWatchListEntry(ctx context.Context, arg db.UpsertWatchListEntryParams) (db.WatchListEntry, error)
 	DeleteWatchListEntry(ctx context.Context, arg db.DeleteWatchListEntryParams) error
 	GetUserWatchList(ctx context.Context, userID string) ([]db.GetUserWatchListRow, error)
+	GetWatchListEntry(ctx context.Context, arg db.GetWatchListEntryParams) (db.WatchListEntry, error)
 	GetContinueWatchingEntry(ctx context.Context, arg db.GetContinueWatchingEntryParams) (db.ContinueWatchingEntry, error)
 	DeleteContinueWatchingEntry(ctx context.Context, arg db.DeleteContinueWatchingEntryParams) error
 	SaveWatchProgress(ctx context.Context, arg db.SaveWatchProgressParams) error

internal/watchlist/repository/repository.go

@@ -34,6 +34,10 @@ func (r *watchlistRepository) GetUserWatchList(ctx context.Context, userID strin
 	return r.queries.GetUserWatchList(ctx, userID)
 }
 
+func (r *watchlistRepository) GetWatchListEntry(ctx context.Context, arg db.GetWatchListEntryParams) (db.WatchListEntry, error) {
+	return r.queries.GetWatchListEntry(ctx, arg)
+}
+
 func (r *watchlistRepository) GetContinueWatchingEntry(ctx context.Context, arg db.GetContinueWatchingEntryParams) (db.ContinueWatchingEntry, error) {
 	return r.queries.GetContinueWatchingEntry(ctx, arg)
 }

internal/watchlist/service/service.go

@@ -55,6 +55,13 @@ func (s *watchlistService) GetWatchlist(ctx context.Context, userID string) ([]d
 	return s.repo.GetUserWatchList(ctx, userID)
 }
 
+func (s *watchlistService) GetWatchListEntry(ctx context.Context, userID string, animeID int64) (db.WatchListEntry, error) {
+	return s.repo.GetWatchListEntry(ctx, db.GetWatchListEntryParams{
+		UserID:  userID,
+		AnimeID: animeID,
+	})
+}
+
 func (s *watchlistService) GetContinueWatchingEntry(ctx context.Context, userID string, animeID int64) (db.ContinueWatchingEntry, error) {
 	return s.repo.GetContinueWatchingEntry(ctx, db.GetContinueWatchingEntryParams{
 		UserID:  userID,