feat: wire guide data source and POI focus UI

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/repositories/ExplainRepository.ts

@@ -0,0 +1,120 @@
+import type {
+  ExplainTrack,
+  MuseumExhibit,
+  MuseumHall,
+  SearchIndexItem
+} from '@/domain/museum'
+import {
+  mediaRepository,
+  type MediaRepository
+} from '@/repositories/MediaRepository'
+import {
+  museumContentRepository,
+  type MuseumContentRepository
+} from '@/repositories/MuseumContentRepository'
+
+export interface ExplainRepository {
+  listExhibits(): Promise<MuseumExhibit[]>
+  getExhibitById(id: string): Promise<MuseumExhibit | null>
+  listHalls(): Promise<MuseumHall[]>
+  getHallById(id: string): Promise<MuseumHall | null>
+  listTracks(): Promise<ExplainTrack[]>
+  getTrackByExhibitId(exhibitId: string): Promise<ExplainTrack | null>
+  searchExplain(keyword?: string): Promise<SearchIndexItem[]>
+}
+
+const trackTitleFor = (exhibit: MuseumExhibit) => `${exhibit.name}讲解`
+
+export class DefaultExplainRepository implements ExplainRepository {
+  constructor(
+    private readonly content: MuseumContentRepository = museumContentRepository,
+    private readonly media: MediaRepository = mediaRepository
+  ) {}
+
+  listExhibits() {
+    return this.content.listExhibits()
+  }
+
+  getExhibitById(id: string) {
+    return this.content.getExhibitById(id)
+  }
+
+  listHalls() {
+    return this.content.listHalls()
+  }
+
+  getHallById(id: string) {
+    return this.content.getHallById(id)
+  }
+
+  async listTracks() {
+    const exhibits = await this.content.listExhibits()
+
+    return Promise.all(exhibits.map(async (exhibit): Promise<ExplainTrack> => {
+      const media = await this.media.getMediaForExplainTrack(exhibit.id)
+      return {
+        id: `track-${exhibit.id}`,
+        exhibitId: exhibit.id,
+        hallId: exhibit.hallId,
+        title: trackTitleFor(exhibit),
+        summary: exhibit.description,
+        mediaId: media?.id,
+        coverImage: exhibit.image,
+        poiId: exhibit.poiId,
+        floorId: exhibit.floorId,
+        available: media?.available === true
+      }
+    }))
+  }
+
+  async getTrackByExhibitId(exhibitId: string) {
+    const tracks = await this.listTracks()
+    return tracks.find((track) => track.exhibitId === exhibitId) || null
+  }
+
+  async searchExplain(keyword = '') {
+    const normalizedKeyword = keyword.trim().toLowerCase()
+    const [exhibits, halls] = await Promise.all([
+      this.content.listExhibits(),
+      this.content.listHalls()
+    ])
+
+    const exhibitItems = exhibits
+      .filter((exhibit) => !normalizedKeyword || [
+        exhibit.name,
+        exhibit.hallName,
+        exhibit.floorLabel,
+        ...(exhibit.tags || [])
+      ].filter(Boolean).join(' ').toLowerCase().includes(normalizedKeyword))
+      .map<SearchIndexItem>((exhibit) => ({
+        id: exhibit.id,
+        name: exhibit.name,
+        desc: `${exhibit.hallName || '展项'} · ${exhibit.floorLabel || ''}`.trim(),
+        type: 'exhibit',
+        exhibitId: exhibit.id,
+        hallId: exhibit.hallId,
+        poiId: exhibit.poiId,
+        floorId: exhibit.floorId
+      }))
+
+    const hallItems = halls
+      .filter((hall) => !normalizedKeyword || [
+        hall.name,
+        hall.floorLabel,
+        hall.description
+      ].filter(Boolean).join(' ').toLowerCase().includes(normalizedKeyword))
+      .map<SearchIndexItem>((hall) => ({
+        id: hall.id,
+        name: hall.name,
+        desc: `${hall.floorLabel || ''} · ${hall.exhibitCount || 0}件展项`.trim(),
+        type: 'hall',
+        hallId: hall.id,
+        poiId: hall.poiId,
+        floorId: hall.floorId
+      }))
+
+    return [...exhibitItems, ...hallItems]
+  }
+}
+
+export const explainRepository = new DefaultExplainRepository()