feat: switch explain flow to API data

src/view-models/explainViewModels.ts

@@ -61,6 +61,9 @@ export interface ExplainDetailPageViewModel {
     statusText?: string
   }
   imageStatus?: string
+  linkedExhibitCount?: number
+  isSharedStop?: boolean
+  linkedExhibitStatusText?: string
   linkedExhibits?: Array<{
     id: string
     name: string
@@ -128,9 +131,9 @@ const languageLabelFor = (language?: string) => {
 }
 
 const isAudioReady = (exhibit: MuseumExhibit) => (
-  exhibit.audioStatus === 'READY'
-  || exhibit.audioAvailable === true
-  || Boolean(exhibit.audioUrl?.trim())
+  exhibit.audioStatus
+    ? exhibit.audioStatus === 'READY'
+    : exhibit.audioAvailable === true || Boolean(exhibit.audioUrl?.trim())
 )
 
 export const toExplainCardViewModel = (exhibit: MuseumExhibit): ExplainCardViewModel => {
@@ -153,7 +156,7 @@ export const toExplainCardViewModel = (exhibit: MuseumExhibit): ExplainCardViewM
     audioDuration: exhibit.audioDuration,
     languageLabel: languageLabelFor(exhibit.audioLanguage),
     audioStatus,
-    audioStatusText: hasPlayableAudio ? '可播放' : '图文讲解',
+    audioStatusText: hasPlayableAudio ? '可播放' : exhibit.audioUnavailableReason || '当前语言暂无语音讲解',
     playTargetType: exhibit.playTargetType,
     playTargetId: exhibit.playTargetId,
     badges: buildBadges(exhibit),
@@ -168,6 +171,14 @@ export const toExplainExhibitViewModel = (exhibit: MuseumExhibit): ExplainExhibi
 
 export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDetailPageViewModel => {
   const hasPlayableAudio = isAudioReady(exhibit)
+  const linkedExhibitCount = typeof exhibit.linkedExhibitCount === 'number'
+    ? exhibit.linkedExhibitCount
+    : exhibit.linkedExhibits?.length
+  const linkedExhibitStatusText = linkedExhibitCount
+    ? exhibit.isSharedStop
+      ? `${linkedExhibitCount} 件展品共用此讲解点`
+      : `关联 ${linkedExhibitCount} 件展品`
+    : undefined
   const metadataLines = [
     exhibit.size ? `展品编号：${exhibit.size}` : '',
     exhibit.year ? `年代：${exhibit.year}` : '',
@@ -204,9 +215,12 @@ export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDet
       playTargetType: exhibit.playTargetType,
       playTargetId: exhibit.playTargetId,
       hasText: exhibit.audioHasText,
-      statusText: hasPlayableAudio ? '可播放' : '图文讲解'
+      statusText: hasPlayableAudio ? '可播放' : '当前语言暂无语音讲解'
     },
     imageStatus: exhibit.imageStatus,
+    linkedExhibitCount,
+    isSharedStop: exhibit.isSharedStop,
+    linkedExhibitStatusText,
     linkedExhibits: exhibit.linkedExhibits,
     chapters: metadataLines.length
       ? metadataLines.map((line, index) => ({