修复导览与讲解位置预览逻辑

src/pages/exhibit/detail.vue

@@ -61,7 +61,7 @@
       <view class="action-bar">
         <view
           class="location-btn"
-          :class="{ disabled: !exhibit.location }"
+          :class="{ disabled: !hallLocationId }"
           @tap="handleNavigate"
         >
           <svg class="location-icon" width="19" height="19" viewBox="0 0 24 24" fill="none">
@@ -134,12 +134,45 @@ const showAudioPlayer = ref(false)
 const currentAudio = ref<AudioItem | null>(null)
 const isPlaying = ref(false)
 const activeTopTab = ref<GuideTopTab>('explain')
+const resolvedHallId = ref('')
 
 const heroImage = computed(() => exhibit.value.coverImages[0])
 const detailMeta = computed(() => [
   exhibit.value.hallName,
   exhibit.value.floorLabel
 ].filter(Boolean).join(' · '))
+const hallLocationId = computed(() => exhibit.value.hallId || resolvedHallId.value)
+
+const normalizePoiName = (value: string) => value
+  .trim()
+  .replace(/[\s（）()【】[\]_-]/g, '')
+  .toLowerCase()
+
+// 讲解详情页只定位到所属展厅，不再追踪具体展品点位。
+const resolveHallGuidePoi = async () => {
+  const hallId = exhibit.value.hallId
+  if (hallId) {
+    const hallPoi = await guideUseCase.getPoiById(hallId)
+    if (hallPoi?.kind === 'hall' || hallPoi?.primaryCategory.id === 'exhibition_hall') {
+      return hallPoi
+    }
+  }
+
+  const normalizedTarget = normalizePoiName(exhibit.value.hallName || '')
+  if (!normalizedTarget) return null
+
+  const candidates = await guideUseCase.searchPois(exhibit.value.hallName || exhibit.value.title || '')
+  return candidates.find((candidate) => {
+    const candidateName = normalizePoiName(candidate.name)
+    const candidateHallName = normalizePoiName(candidate.hallName || '')
+    return candidate.kind === 'hall'
+      || candidate.primaryCategory.id === 'exhibition_hall'
+      || candidateName === normalizedTarget
+      || candidateHallName === normalizedTarget
+      || candidateName.includes(normalizedTarget)
+      || normalizedTarget.includes(candidateName)
+  }) || candidates[0] || null
+}
 
 onLoad(async (options: any = {}) => {
   const tab = Array.isArray(options.tab) ? options.tab[0] : options.tab
@@ -153,6 +186,9 @@ onLoad(async (options: any = {}) => {
   const exhibitData = await explainUseCase.getExhibitById(exhibitId)
   if (exhibitData) {
     exhibit.value = toExplainDetailPageViewModel(exhibitData)
+    if (exhibitData.hallId) {
+      resolvedHallId.value = exhibitData.hallId
+    }
   }
 })
 
@@ -247,25 +283,34 @@ const handleAudioError = (_audio: AudioItem | null, message: string) => {
 }
 
 const handleNavigate = async () => {
-  if (!exhibit.value.location?.poiId) {
+  const matchedHallPoi = await resolveHallGuidePoi()
+  if (!matchedHallPoi) {
     uni.showToast({
-      title: '该讲解暂无三维位置数据',
+      title: '该讲解暂无所属展厅位置数据',
       icon: 'none'
     })
     return
   }
 
-  const matchedPoi = await guideUseCase.getPoiById(exhibit.value.location.poiId)
-  if (!matchedPoi) {
-    uni.showToast({
-      title: '该讲解位置尚未映射到当前三维导览资源',
-      icon: 'none'
-    })
-    return
+  resolvedHallId.value = matchedHallPoi.id
+  exhibit.value = {
+    ...exhibit.value,
+    hallId: matchedHallPoi.id,
+    hallName: matchedHallPoi.hallName || matchedHallPoi.name,
+    location: exhibit.value.location || {
+      status: 'hallFallback',
+      poiId: matchedHallPoi.id,
+      sourcePoiId: matchedHallPoi.id,
+      actionText: '查看所属展厅',
+      previewOnly: true,
+      floorId: matchedHallPoi.floorId,
+      floorLabel: matchedHallPoi.floorLabel,
+      note: '已定位到该讲解所属展厅。'
+    }
   }
 
   uni.navigateTo({
-    url: `/pages/route/detail?facilityId=${encodeURIComponent(exhibit.value.location.poiId)}&target=${encodeURIComponent(exhibit.value.title)}&state=preview`
+    url: `/pages/route/detail?facilityId=${encodeURIComponent(matchedHallPoi.id)}&target=${encodeURIComponent(exhibit.value.hallName || exhibit.value.title)}&state=preview`
   })
 }