fix(voice): add per-lesson failure recovery

pages/feedback/index.ts

@@ -22,6 +22,7 @@ import type {
   FeedbackSession,
   FeedbackSummaryRun,
   StudentProfile,
+  VoiceAudioSegment,
   VoiceLesson,
   VoiceLessonFinished
 } from '../../utils/types'
@@ -58,6 +59,7 @@ interface VoiceLessonView {
   canAdd: boolean
   summaryEligible: boolean
   summarySelected: boolean
+  failedSegmentCount: number
   addActionText: string
   emptyText: string
 }
@@ -144,6 +146,7 @@ function buildVoiceLessonViews(
     const transcript = lesson.transcript.trim()
     const isInDraft = Boolean(transcript) && content.includes(transcript)
     const summaryEligible = lesson.status === 'ready' && Boolean(transcript)
+    const failedSegmentCount = lesson.segments.filter((segment) => segment.status === 'failed').length
     let emptyText = '转录完成后可查看内容'
     if (lesson.status === 'failed') {
       emptyText = lesson.segments.find((segment) => segment.status === 'failed')?.errorMessage
@@ -162,6 +165,7 @@ function buildVoiceLessonViews(
       canAdd: lesson.status === 'ready' && Boolean(transcript) && !isInDraft,
       summaryEligible,
       summarySelected: summaryEligible && !excluded.has(lesson.id),
+      failedSegmentCount,
       addActionText: isInDraft
         ? '已在输入框'
         : lesson.appliedDirectly
@@ -1056,13 +1060,34 @@ Page({
     if (!session) return
     const failedSegments = getFailedVoiceSegments(session)
     if (failedSegments.length === 0) return
+    await this.retryVoiceSegments(failedSegments)
+  },
+
+  async retryVoiceLesson(event: LessonActionEvent) {
+    const session = this.data.session
+    const lesson = session?.lessons.find((item) => item.id === event.currentTarget.dataset.lessonId)
+    if (!lesson) return
+    const failedSegments = lesson.segments.filter((segment) => segment.status === 'failed')
+    if (failedSegments.length === 0) return
+    await this.retryVoiceSegments(failedSegments, lesson.sequence)
+  },
+
+  async retryVoiceSegments(
+    failedSegments: VoiceAudioSegment[],
+    lessonSequence?: number
+  ) {
+    const session = this.data.session
+    if (!session || this.data.recording || this.data.voiceBusy) return
     logVoiceOperation('transcription_retry_clicked', {
       feedbackSessionId: session.id,
+      lessonSequence: lessonSequence || null,
       failedSegmentCount: failedSegments.length
     })
     this.setData({
       voiceBusy: true,
-      voiceStatus: `正在重试${failedSegments.length}段转录`,
+      voiceStatus: lessonSequence
+        ? `正在重试第${lessonSequence}节转录`
+        : `正在重试${failedSegments.length}段转录`,
       primaryActionText: '正在重试转录',
       errorMessage: '',
       errorRequestId: ''
@@ -1078,9 +1103,13 @@ Page({
       )
       logVoiceOperation('transcription_retry_submitted', {
         feedbackSessionId: session.id,
+        lessonSequence: lessonSequence || null,
         segmentIds: failedSegments.map((segment) => segment.id)
       })
-      wx.showToast({ title: '已重新提交，正在转录', icon: 'none' })
+      wx.showToast({
+        title: lessonSequence ? `第${lessonSequence}节已重新提交` : '已重新提交，正在转录',
+        icon: 'none'
+      })
     } catch (error) {
       logVoiceOperation('transcription_retry_failed', {
         feedbackSessionId: session.id,
@@ -1094,13 +1123,17 @@ Page({
     }
   },
 
-  confirmDiscardFailedSegments(): Promise<boolean> {
-    const failedSegmentCount = this.data.session?.failedSegmentCount || 0
+  confirmDiscardVoiceSegments(
+    failedSegmentCount: number,
+    lessonSequence?: number
+  ): Promise<boolean> {
     return new Promise((resolve) => {
       wx.showModal({
-        title: '放弃失败录音',
-        content: `将删除${failedSegmentCount}段失败录音，其余录音和反馈内容不受影响。此操作无法撤销。`,
-        confirmText: '确认放弃',
+        title: lessonSequence ? `删除第${lessonSequence}节录音` : '删除失败录音',
+        content: lessonSequence
+          ? `将删除第${lessonSequence}节中${failedSegmentCount}段转录失败的录音，其余语音记录不受影响。此操作无法撤销。`
+          : `将删除${failedSegmentCount}段失败录音，其余录音和反馈内容不受影响。此操作无法撤销。`,
+        confirmText: '确认删除',
         confirmColor: '#d13f3a',
         success: (result) => resolve(result.confirm),
         fail: () => resolve(false)
@@ -1113,11 +1146,38 @@ Page({
     const session = this.data.session
     if (!session) return
     const failedSegments = getFailedVoiceSegments(session)
-    if (failedSegments.length === 0 || !(await this.confirmDiscardFailedSegments())) return
+    if (
+      failedSegments.length === 0
+      || !(await this.confirmDiscardVoiceSegments(failedSegments.length))
+    ) return
+    await this.discardVoiceSegments(failedSegments)
+  },
+
+  async discardVoiceLesson(event: LessonActionEvent) {
+    if (this.data.recording || this.data.voiceBusy) return
+    const session = this.data.session
+    const lesson = session?.lessons.find((item) => item.id === event.currentTarget.dataset.lessonId)
+    if (!session || !lesson) return
+    const failedSegments = lesson.segments.filter((segment) => segment.status === 'failed')
+    if (
+      failedSegments.length === 0
+      || !(await this.confirmDiscardVoiceSegments(failedSegments.length, lesson.sequence))
+    ) return
+    await this.discardVoiceSegments(failedSegments, lesson.sequence)
+  },
+
+  async discardVoiceSegments(
+    failedSegments: VoiceAudioSegment[],
+    lessonSequence?: number
+  ) {
+    const session = this.data.session
+    if (!session) return
 
     this.setData({
       voiceBusy: true,
-      voiceStatus: `正在放弃${failedSegments.length}段失败录音`,
+      voiceStatus: lessonSequence
+        ? `正在删除第${lessonSequence}节失败录音`
+        : `正在删除${failedSegments.length}段失败录音`,
       primaryActionText: '正在处理',
       errorMessage: '',
       errorRequestId: ''
@@ -1133,9 +1193,13 @@ Page({
       )
       logVoiceOperation('failed_transcription_discarded', {
         feedbackSessionId: session.id,
+        lessonSequence: lessonSequence || null,
         segmentIds: failedSegments.map((segment) => segment.id)
       })
-      wx.showToast({ title: '已放弃失败录音', icon: 'none' })
+      wx.showToast({
+        title: lessonSequence ? `第${lessonSequence}节失败录音已删除` : '失败录音已删除',
+        icon: 'none'
+      })
     } catch (error) {
       this.showApiError(error)
     } finally {