/**
 * Watches (issue #93, data-model.md §watches): explicit per-user
 * subscriptions to pages or whole ponds — the input side of the
 * notification model (#94).
 */

export const WATCH_TARGET_TYPES = ['page', 'pond'] as const;
export type WatchTargetType = (typeof WATCH_TARGET_TYPES)[number];

export interface WatchView {
  id: string;
  targetType: WatchTargetType;
  targetId: string;
  /** Page title or pond name. */
  name: string;
  /** Link target: `/p/<pondSlug>` for ponds, `/p/<pondSlug>/<slug>` for pages. */
  pondSlug: string;
  slug: string | null;
  createdAt: string;
}

export interface WatchListView {
  watches: WatchView[];
}

/** The toggle state the page/pond headers need. */
export interface WatchStateView {
  watched: boolean;
}