Implement showing/updating/removing tracker bindings

src/lib/data/Trackers.ts

@@ -14,6 +14,8 @@ import {
     TrackRecordType,
 } from '@/lib/graphql/generated/graphql.ts';
 
+export const UNSET_DATE = '0';
+
 export type TTrackRecord = GetMangaQuery['manga']['trackRecords']['nodes'][number];
 
 export type TrackerManga = TrackerSearchQuery['searchTracker']['trackSearches'][number];
@@ -29,6 +31,14 @@ export class Trackers {
         return trackers.map((tracker) => tracker.id);
     }
 
+    static isUnsetDate(date: string): boolean {
+        return date === UNSET_DATE;
+    }
+
+    static getDateString(date: string): string | undefined {
+        return this.isUnsetDate(date) ? undefined : date;
+    }
+
     static getLoggedIn<Tracker extends LoggedInInfo>(trackers: Tracker[]): Tracker[] {
         return trackers.filter((tracker) => tracker.isLoggedIn);
     }