接入H5讲解后端数据闭环

src/view-models/explainViewModels.ts

@@ -96,6 +96,18 @@ const buildBadges = (exhibit: MuseumExhibit) => {
   return Array.from(new Set(badges)).slice(0, 3)
 }
 
+const formatDuration = (duration?: number) => (
+  typeof duration === 'number' && Number.isFinite(duration) && duration > 0
+    ? `${Math.round(duration)}秒`
+    : undefined
+)
+
+const languageLabelFor = (language?: string) => {
+  if (language === 'en-US') return '英文'
+  if (language === 'zh-CN') return '中文'
+  return language || undefined
+}
+
 export const toExplainCardViewModel = (exhibit: MuseumExhibit): ExplainCardViewModel => {
   const hasPlayableAudio = exhibit.audioAvailable === true || Boolean(exhibit.audioUrl)
   const audioStatus: ExplainAudioStatus = hasPlayableAudio ? 'playable' : 'unavailable'
@@ -111,10 +123,10 @@ export const toExplainCardViewModel = (exhibit: MuseumExhibit): ExplainCardViewM
     hallId: exhibit.hallId,
     hallName: exhibit.hallName,
     floorLabel: exhibit.floorLabel,
-    durationLabel: exhibit.audioDuration ? `${Math.round(exhibit.audioDuration)}秒` : undefined,
+    durationLabel: formatDuration(exhibit.audioDuration),
     audioUrl: exhibit.audioUrl,
     audioDuration: exhibit.audioDuration,
-    languageLabel: '中文',
+    languageLabel: languageLabelFor(exhibit.audioLanguage),
     audioStatus,
     audioStatusText: hasPlayableAudio ? '可播放' : '图文讲解',
     badges: buildBadges(exhibit),
@@ -134,8 +146,9 @@ export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDet
     exhibit.year ? `年代：${exhibit.year}` : '',
     exhibit.material ? `来源：${exhibit.material}` : ''
   ].filter(Boolean)
+  const transcript = exhibit.audioText || exhibit.guideText || exhibit.description
   const body = [
-    exhibit.guideText || exhibit.description || '该展项暂无讲解文稿。',
+    transcript || '该展项暂无讲解文稿。',
     metadataLines.join('\n')
   ].filter(Boolean).join('\n\n')
 
@@ -148,14 +161,16 @@ export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDet
     hallId: exhibit.hallId,
     hallName: exhibit.hallName,
     floorLabel: exhibit.floorLabel,
-    summary: exhibit.guideText || exhibit.description || '该展项暂无讲解文稿。',
+    summary: transcript || '该展项暂无讲解文稿。',
     body,
     audio: {
       status: hasPlayableAudio ? 'playable' : 'unavailable',
       url: exhibit.audioUrl,
-      durationLabel: exhibit.audioDuration ? `${Math.round(exhibit.audioDuration)}秒` : undefined,
-      language: 'zh-CN',
-      unavailableReason: hasPlayableAudio ? undefined : '该展项暂无已发布音频，当前提供图文讲解。'
+      durationLabel: formatDuration(exhibit.audioDuration),
+      language: exhibit.audioLanguage,
+      unavailableReason: hasPlayableAudio
+        ? undefined
+        : exhibit.audioUnavailableReason || '该展项暂无已发布音频，当前提供图文讲解。'
     },
     chapters: metadataLines.length
       ? metadataLines.map((line, index) => ({
@@ -163,7 +178,7 @@ export const toExplainDetailPageViewModel = (exhibit: MuseumExhibit): ExplainDet
         title: line
       }))
       : [],
-    transcript: exhibit.guideText || exhibit.description,
+    transcript,
     location: exhibit.location,
     relatedItems: []
   }