feat: 修改群聊日报生成与群成员信息展示

- 支持结构化 AI 群聊日报及移动端长图导出 - 支持日报时间范围和消息类型筛选 - 支持群成员及当前用户群昵称解析 - 移除消息加载更多并优化图片懒加载 - 增强头像处理与敏感密钥日志保护
2026-08-17 11:37:06 +08:00 · 2026-06-29 16:43:01 +08:00
parent f6f8bc33f9
commit c00d581d9e
15 changed files with 1531 additions and 175 deletions
@@ -703,6 +703,79 @@ body {
  overflow: auto;
 }

+.ai-settings-modal {
+  width: min(460px, 90vw);
+}
+
+.ai-settings-modal h3 {
+  margin: 0 0 18px;
+}
+
+.ai-filter-section {
+  margin-bottom: 16px;
+}
+
+.ai-filter-label {
+  margin-bottom: 7px;
+  color: #333;
+  font-size: 14px;
+  font-weight: 600;
+}
+
+.ai-date-options {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 6px;
+}
+
+.ai-date-options label {
+  display: flex;
+  min-width: 0;
+  align-items: center;
+  justify-content: center;
+  gap: 5px;
+  padding: 8px 6px;
+  border: 1px solid #d8dcdf;
+  border-radius: 6px;
+  background: #fff;
+  color: #4a5257;
+  cursor: pointer;
+  font-size: 13px;
+}
+
+.ai-date-options label.selected {
+  border-color: #07c160;
+  background: #eefaf3;
+  color: #078f49;
+}
+
+.ai-date-options input,
+.ai-type-options input {
+  margin: 0;
+  accent-color: #07c160;
+}
+
+.ai-type-options {
+  display: grid;
+  grid-template-columns: repeat(3, minmax(0, 1fr));
+  gap: 8px 10px;
+  padding: 11px;
+  border: 1px solid #e1e4e6;
+  border-radius: 6px;
+  background: #f8f9fa;
+}
+
+.ai-type-options label {
+  display: flex;
+  min-width: 0;
+  align-items: center;
+  gap: 6px;
+  color: #3f474c;
+  cursor: pointer;
+  font-size: 13px;
+  white-space: nowrap;
+}
+
 .image-preview-modal {
  background: transparent;
  box-shadow: none;
@@ -1,9 +1,13 @@
 import React, { useEffect, useRef, useState } from 'react'
-import { toPng } from 'html-to-image'
 import { Message, Contact } from '../../../shared/types'
 import { VoicePlayer } from './VoicePlayer'
 import { RichMessageBubble } from './RichMessageBubble'
 import { ImageBubble } from './ImageBubble'
+import {
+  buildGroupReportInput,
+  GROUP_REPORT_SYSTEM_PROMPT,
+  parseGroupDailyReport
+} from '../utils/group-report'

 interface ChatWindowProps {
  contact: Contact | null
@@ -13,27 +17,41 @@ interface ChatWindowProps {
  onRefreshData?: () => void
 }

-const systemPrompt = `你是一个中文的群聊总结的助手，你可以为一个微信的群聊记录，提取并总结每个时间段大家在重点讨论的话题内容。
-请注意 不要回复总结除外的内容, 并且不要输出 群友的wxid  微信id 只需要显示群名称
-请帮我将给出的群聊内容总结成一个群聊报告，需要你生成7个最重要 最火爆的话题的总结（如果还有更多话题，可以在后面简单补充）。每个话题包含以下内容：
- 整体评价
-    - 话题名(50字以内，带序号1️⃣2️⃣3️⃣，同时附带热度，以🔥数量表示）
-        - 参与者(不超过5个人，将重复的人名去重)
-        - 注意按时间排序，时间段(从日期几点到几点)
-    - 过程(50到200字左右）
-        - 评价(50字以下)
-        - 生成这7天内热度最高的话题，27日到2日一共7天 
-需要生成27, 28, 29, 30, 31, 1, 2日的话题总结
-    - 分割线： ------------
+type SummaryDateRange = 'today' | 'yesterday' | '7days'
+type SummaryMessageType = 'text' | 'image' | 'sticker' | 'video' | 'voice' | 'share' | 'system'

-    另外有以下要求：
-        1. 每个话题结束使用------------分割
-2. 使用中文冒号
-3. 无需大标题
-4. 开始给出本群讨论风格的整体评价，例如活跃、太水、太黄、太暴力、话题不集中、无聊诸如此类
-5. 每个话题详细写出参与者
+const SUMMARY_DATE_OPTIONS: { value: SummaryDateRange; label: string }[] = [
+  { value: 'today', label: '今天' },
+  { value: 'yesterday', label: '昨日' },
+  { value: '7days', label: '最近 7 天' }
+]

-最后总结下今日最活跃的前五个发言者`
+const SUMMARY_TYPE_OPTIONS: {
+  value: SummaryMessageType
+  label: string
+  messageTypes: string[]
+}[] = [
+  { value: 'text', label: '文本', messageTypes: ['普通文本'] },
+  { value: 'image', label: '图片', messageTypes: ['图片'] },
+  { value: 'sticker', label: '表情包', messageTypes: ['表情包'] },
+  { value: 'video', label: '视频', messageTypes: ['视频'] },
+  { value: 'voice', label: '语音', messageTypes: ['语音'] },
+  { value: 'share', label: '分享/引用', messageTypes: ['分享消息', '名片', '位置', '通话'] },
+  { value: 'system', label: '系统消息', messageTypes: ['系统消息'] }
+]
+
+const getSummaryDateRange = (range: SummaryDateRange): { startTime: number; endTime: number } => {
+  const now = new Date()
+  const startOfToday = new Date(now.getFullYear(), now.getMonth(), now.getDate()).getTime() / 1000
+  const endTime = Math.floor(Date.now() / 1000)
+  if (range === 'yesterday') {
+    return { startTime: startOfToday - 86400, endTime: startOfToday - 1 }
+  }
+  if (range === '7days') {
+    return { startTime: startOfToday - 6 * 86400, endTime }
+  }
+  return { startTime: startOfToday, endTime }
+}

 const ChatWindow: React.FC<ChatWindowProps> = ({
  contact,
@@ -42,10 +60,12 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
  onRefresh,
  onRefreshData
 }) => {
-  const isGroupChat = contact?.type === 'group' || contact?.m_nsUsrName?.endsWith('@chatroom')
+  const isGroupChat = Boolean(
+    contact?.type === 'group' || contact?.m_nsUsrName?.endsWith('@chatroom')
+  )
  const messagesEndRef = useRef<HTMLDivElement>(null)
-  const imageContainerRef = useRef<HTMLDivElement>(null)
  const [generatedImage, setGeneratedImage] = useState<string | null>(null)
+  const [reportPaths, setReportPaths] = useState<{ htmlPath: string; pngPath: string } | null>(null)
  const [previewImage, setPreviewImage] = useState<string | null>(null)
  const [imageScale, setImageScale] = useState(0.75)
  const [imageRotation, setImageRotation] = useState(0)
@@ -62,8 +82,14 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
    () => localStorage.getItem('ai_base_url') || 'https://api.deepseek.com'
  )
  const [model, setModel] = useState(() => localStorage.getItem('ai_model') || 'deepseek-chat')
+  const [summaryDateRange, setSummaryDateRange] = useState<SummaryDateRange>('today')
+  const [summaryMessageTypes, setSummaryMessageTypes] = useState<SummaryMessageType[]>(['text'])

  const handleSaveSettings = (): void => {
+    if (!summaryMessageTypes.length) {
+      alert('请至少选择一种消息类型')
+      return
+    }
    localStorage.setItem('ai_api_key', apiKey)
    localStorage.setItem('ai_base_url', baseURL)
    localStorage.setItem('ai_model', model)
@@ -71,6 +97,12 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
    AIChat()
  }

+  const toggleSummaryMessageType = (type: SummaryMessageType): void => {
+    setSummaryMessageTypes((current) =>
+      current.includes(type) ? current.filter((item) => item !== type) : [...current, type]
+    )
+  }
+
  const scrollToBottom = (): void => {
    messagesEndRef.current?.scrollIntoView({ behavior: 'auto' })
  }
@@ -188,86 +220,52 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
    document.body.removeChild(link)
  }

-  const [summaryContent, setSummaryContent] = useState<string>('')
  const [isLoading, setIsLoading] = useState(false)

  const AIChat = async (): Promise<void> => {
-    if (!messages || messages.length === 0) {
-      alert('当前没有消息可供总结')
+    if (!contact) return
+    if (!summaryMessageTypes.length) {
+      alert('请至少选择一种消息类型')
      return
    }
-    const filteredMessages = messages
-      .filter((msg) => !'分享消息,图片,表情包,视频'.split(',').includes(msg.type))
-      .map((msg) => {
-        return {
-          from: msg.from,
-          type: msg.type,
-          datetime: msg.datetime,
-          content: msg.content,
-          name: msg.name
-        }
-      })
-    const recentMessages = filteredMessages
-      .map((msg) => {
-        return `${msg.datetime} ${msg.from}: ${msg.content}`
-      })
-      .join('\n')
-
-    const prompt = `请总结以下微信聊天记录的核心内容：\n\n${recentMessages}`
-
    setIsLoading(true)
    try {
-      console.log('正在请求AI...')
+      const { startTime, endTime } = getSummaryDateRange(summaryDateRange)
+      const rangeMessages = await window.api.getMessages(contact.md5, startTime, endTime)
+      const allowedTypes = new Set(
+        SUMMARY_TYPE_OPTIONS.filter((option) => summaryMessageTypes.includes(option.value)).flatMap(
+          (option) => option.messageTypes
+        )
+      )
+      const reportMessages = rangeMessages.filter((message) => allowedTypes.has(message.type))
+      if (!reportMessages.length) throw new Error('当前条件下没有可总结的消息')
+
+      const input = buildGroupReportInput(reportMessages, contact, isGroupChat)
+      console.log('🚀 ~ AIChat ~ input:', input)
+      console.log('🚀 ~ AIChat ~ input.prompt:', input.prompt)
      const result = await window.api.aiChat(
        [
-          { role: 'system', content: systemPrompt },
-          { role: 'user', content: prompt }
+          { role: 'system', content: GROUP_REPORT_SYSTEM_PROMPT },
+          { role: 'user', content: input.prompt }
        ],
        { apiKey, model, baseURL }
      )

-      if (result.success && result.data) {
-        console.log('AI Summary:', result.data)
-        setSummaryContent(result.data)
-
-        // 等待状态更新和渲染
-        setTimeout(() => {
-          textToImage()
-          setIsLoading(false) // 图片生成开始后停止加载
-        }, 500)
-      } else {
-        console.error('AI Error:', result.error)
-        alert(`AI 请求失败: ${result.error}`)
-        setIsLoading(false)
+      if (!result.success || !result.data) throw new Error(result.error || 'AI 请求失败')
+      const report = parseGroupDailyReport(result.data, input.topSpeakers, input.activeTimeline)
+      const exported = await window.api.exportGroupReport({ report, metadata: input.metadata })
+      if (!exported.success || !exported.imageDataUrl || !exported.htmlPath || !exported.pngPath) {
+        throw new Error(exported.error || '日报文件生成失败')
      }
+      setGeneratedImage(exported.imageDataUrl)
+      setReportPaths({ htmlPath: exported.htmlPath, pngPath: exported.pngPath })
    } catch (error) {
      console.error('AI Call Failed:', error)
-      alert('AI 请求发生错误')
+      alert(`AI 日报生成失败：${error instanceof Error ? error.message : String(error)}`)
+    } finally {
      setIsLoading(false)
    }
  }
-
-  const textToImage = async (): Promise<void> => {
-    if (imageContainerRef.current) {
-      try {
-        const dataUrl = await toPng(imageContainerRef.current, {
-          cacheBust: true,
-          backgroundColor: '#ffffff',
-          style: {
-            transform: 'scale(1)'
-          }
-        })
-        if (dataUrl && dataUrl.length > 100) {
-          setGeneratedImage(dataUrl)
-        } else {
-          alert('生成图片为空')
-        }
-      } catch (err) {
-        console.error('Failed to generate image', err)
-        alert('生成图片失败: ' + (err instanceof Error ? err.message : String(err)))
-      }
-    }
-  }
  const handleCopyImage = async (): Promise<void> => {
    if (!generatedImage) return
    const result = await window.api.copyImage(generatedImage)
@@ -276,8 +274,6 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
    }
  }

-  const [displayLimit, setDisplayLimit] = useState(100)
-
  const filteredMessages = React.useMemo(() => {
    return messages.filter((msg) => {
      const filterTypes = (import.meta.env.VITE_FILTER_MSG_TYPES || '')
@@ -290,8 +286,6 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
    })
  }, [messages, contentFilter])

-  const visibleMessages = filteredMessages.slice(0, displayLimit)
-
  if (!contact) {
    return (
      <div className="chat-window">
@@ -308,7 +302,7 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
      </div>

      <div className="message-list wechat-message-list">
-        {visibleMessages.map((msg) => {
+        {filteredMessages.map((msg) => {
          const isMine = msg.from === 'assistant'
          const displayName = isMine
            ? '我'
@@ -368,22 +362,6 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
            </div>
          )
        })}
-        {filteredMessages.length > displayLimit && (
-          <div style={{ textAlign: 'center', padding: '10px' }}>
-            <button
-              onClick={() => setDisplayLimit((prev) => prev + 100)}
-              style={{
-                padding: '8px 16px',
-                backgroundColor: '#f0f0f0',
-                border: '1px solid #ccc',
-                borderRadius: '4px',
-                cursor: 'pointer'
-              }}
-            >
-              加载更多 ({filteredMessages.length - displayLimit} 条剩余)
-            </button>
-          </div>
-        )}
        <div ref={messagesEndRef} />
      </div>

@@ -425,42 +403,14 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
        </button>
      </div>

-      <div
-        style={{
-          position: 'fixed',
-          top: 0,
-          left: 0,
-          width: 0,
-          height: 0,
-          overflow: 'hidden',
-          zIndex: -1
-        }}
-      >
-        <div
-          style={{
-            width: '820px',
-            padding: '20px',
-            backgroundColor: '#fff',
-            fontSize: '22px',
-            color: '#000',
-            whiteSpace: 'pre-wrap',
-            fontFamily: 'sans-serif',
-            lineHeight: '1.5'
-          }}
-          ref={imageContainerRef}
-        >
-          {summaryContent}
-        </div>
-      </div>
-
      {/* 加载模态框 */}
      {isLoading && (
        <div className="modal-overlay">
          <div className="modal-content" style={{ textAlign: 'center', minWidth: '200px' }}>
            <div style={{ fontSize: '40px', marginBottom: '20px' }}>🤖</div>
-            <div style={{ fontSize: '16px', color: '#333' }}>正在生成 AI 总结...</div>
+            <div style={{ fontSize: '16px', color: '#333' }}>正在生成群聊日报...</div>
            <div style={{ fontSize: '12px', color: '#999', marginTop: '10px' }}>
-              请稍候，生成后将自动转换为图片
+              正在分析记录、处理头像并生成 HTML 和长图
            </div>
          </div>
        </div>
@@ -496,6 +446,14 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
              >
                📋 复制图片
              </button>
+              {reportPaths && (
+                <button
+                  onClick={() => window.api.revealGroupReport(reportPaths.pngPath)}
+                  style={{ padding: '5px 10px', cursor: 'pointer' }}
+                >
+                  在文件夹中显示
+                </button>
+              )}
              <button
                onClick={() => setGeneratedImage(null)}
                style={{ padding: '5px 10px', cursor: 'pointer' }}
@@ -559,8 +517,43 @@ const ChatWindow: React.FC<ChatWindowProps> = ({
      {/* AI Settings Modal */}
      {showSettingsModal && (
        <div className="modal-overlay" onClick={() => setShowSettingsModal(false)}>
-          <div className="modal-content" onClick={(e) => e.stopPropagation()}>
+          <div className="modal-content ai-settings-modal" onClick={(e) => e.stopPropagation()}>
            <h3>AI 设置</h3>
+            <div className="ai-filter-section">
+              <div className="ai-filter-label">时间范围</div>
+              <div className="ai-date-options">
+                {SUMMARY_DATE_OPTIONS.map((option) => (
+                  <label
+                    key={option.value}
+                    className={summaryDateRange === option.value ? 'selected' : ''}
+                  >
+                    <input
+                      type="radio"
+                      name="summary-date-range"
+                      value={option.value}
+                      checked={summaryDateRange === option.value}
+                      onChange={() => setSummaryDateRange(option.value)}
+                    />
+                    {option.label}
+                  </label>
+                ))}
+              </div>
+            </div>
+            <div className="ai-filter-section">
+              <div className="ai-filter-label">消息类型</div>
+              <div className="ai-type-options">
+                {SUMMARY_TYPE_OPTIONS.map((option) => (
+                  <label key={option.value}>
+                    <input
+                      type="checkbox"
+                      checked={summaryMessageTypes.includes(option.value)}
+                      onChange={() => toggleSummaryMessageType(option.value)}
+                    />
+                    {option.label}
+                  </label>
+                ))}
+              </div>
+            </div>
            <div className="form-group" style={{ marginBottom: '15px' }}>
              <label style={{ display: 'block', marginBottom: '5px' }}>模型服务:</label>
              <select
@@ -1,4 +1,4 @@
-import { useState, useCallback, useEffect } from 'react'
+import { useState, useCallback, useEffect, useRef } from 'react'
 import type { JSX, MouseEvent } from 'react'

 interface ImageBubbleProps {
@@ -19,6 +19,7 @@ export function ImageBubble({
  const [imageUrl, setImageUrl] = useState<string | null>(null)
  const [loading, setLoading] = useState(false)
  const [error, setError] = useState<string | null>(null)
+  const containerRef = useRef<HTMLDivElement>(null)

  const loadImage = useCallback(async () => {
    if (imageUrl || loading) return
@@ -50,10 +51,22 @@ export function ImageBubble({

  useEffect(() => {
    if (imageUrl || loading || error) return
-    const timer = window.setTimeout(() => {
-      void loadImage()
-    }, 0)
-    return () => window.clearTimeout(timer)
+    const element = containerRef.current
+    if (!element || typeof IntersectionObserver === 'undefined') {
+      const timer = window.setTimeout(() => void loadImage(), 0)
+      return () => window.clearTimeout(timer)
+    }
+
+    const observer = new IntersectionObserver(
+      (entries) => {
+        if (!entries.some((entry) => entry.isIntersecting)) return
+        observer.disconnect()
+        void loadImage()
+      },
+      { rootMargin: '400px 0px' }
+    )
+    observer.observe(element)
+    return () => observer.disconnect()
  }, [error, imageUrl, loadImage, loading])

  const handleCopy = async (event: MouseEvent): Promise<void> => {
@@ -88,7 +101,7 @@ export function ImageBubble({

  if (!imageUrl) {
    return (
-      <div className="image-bubble image-placeholder">
+      <div ref={containerRef} className="image-bubble image-placeholder">
        <div className="image-placeholder-icon">🖼</div>
        <div className="image-placeholder-text">加载图片中</div>
      </div>
@@ -0,0 +1,330 @@
+import { Contact, Message } from '../../../shared/types'
+import {
+  GroupDailyReport,
+  GroupReportMetadata,
+  ReportHeat,
+  ReportImportantMessage,
+  ReportQuestionAnswer,
+  ReportQuote,
+  ReportResource,
+  ReportSpeakerRank,
+  ReportTopic
+} from '../../../shared/group-report'
+
+export const GROUP_REPORT_SYSTEM_PROMPT = `你是微信群聊日报编辑。请仅根据用户提供的聊天记录生成结构化中文日报。
+
+原则：
+1. 不得编造聊天中没有的事实、结论、参与者或链接内容。
+2. 仅使用输入中的昵称，不输出 wxid、微信 ID、会话 ID 等内部标识。
+3. 图片、表情、语音、视频或链接内容不可见时，仅标注消息类型，不要猜测。
+4. 摘要说明发生了什么、大家如何回应、最后形成什么结论或氛围。
+5. 语气准确、轻巧、有信息密度，避免侮辱性和歧视性评价。
+6. 没有实际内容的可选栏目输出空数组，不要凑数。
+7. 只输出一个可被 JSON.parse 解析的 JSON 对象，不要输出 Markdown 代码块或其他文字。
+
+JSON 结构必须为：
+{
+  "overview": "1至2句整体讨论风格与氛围",
+  "topics": [{
+    "title": "话题标题",
+    "timeRange": "HH:mm-HH:mm",
+    "heat": "高|中|低",
+    "participants": ["昵称"],
+    "summary": "话题摘要",
+    "conclusion": "结论或氛围",
+    "keywords": ["关键词"]
+  }],
+  "resources": [{"title":"资源名","description":"用途或内容","sender":"昵称"}],
+  "importantMessages": [{"sender":"昵称","time":"HH:mm","content":"消息摘要","note":"为什么重要"}],
+  "quotes": [{"messages":[{"sender":"昵称","content":"简短原话"}],"note":"点评"}],
+  "qa": [{"question":"问题","answer":"答案与结论","answerer":"昵称"}],
+  "keywords": ["关键词"]
+}
+
+topics 提取 3 至 7 个，参与者最多 5 人，quotes 最多 3 组，keywords 输出 8 至 15 个。`
+
+const isInternalIdentifier = (value: string): boolean =>
+  /@chatroom$/i.test(value) || /^wxid_/i.test(value) || /^[a-z0-9_-]{18,}$/i.test(value)
+
+const summarySender = (message: Message, contact: Contact | null, isGroup: boolean): string => {
+  if (message.from === 'assistant') {
+    const ownGroupNickname = message.name?.trim()
+    if (isGroup && ownGroupNickname && !isInternalIdentifier(ownGroupNickname)) {
+      return ownGroupNickname
+    }
+    return '我'
+  }
+  const candidate = isGroup ? message.name : contact?.m_nsNickName
+  if (!candidate || isInternalIdentifier(candidate)) return isGroup ? '未命名群成员' : '对方'
+  return candidate
+}
+
+const summaryContent = (message: Message): string => {
+  const data = message.contentData
+  if (!data) return message.content?.trim() || `[${message.type || '消息'}]`
+
+  switch (data.type) {
+    case 'image':
+      return '[图片]'
+    case 'sticker':
+      return '[表情]'
+    case 'voice':
+      return `[语音${data.duration ? ` ${data.duration}秒` : ''}]`
+    case 'share':
+      return `[分享] ${data.title}${data.des ? `：${data.des}` : ''}`
+    case 'quote': {
+      const reply = data.title || data.content || message.content || '[回复]'
+      const quotedSender =
+        data.quotedSender && !isInternalIdentifier(data.quotedSender) ? data.quotedSender : '群成员'
+      return `${reply}（引用 ${quotedSender}：${data.quotedContent || `[引用${data.quotedType || '消息'}]`}）`
+    }
+    case 'location':
+      return `[位置] ${data.poiname || data.label || '位置消息'}`
+    case 'card':
+      return `[名片] ${data.nickname || '微信名片'}`
+    case 'voip':
+      return `[通话] ${data.status}${data.duration ? `，${data.duration}秒` : ''}`
+    case 'system':
+    case 'text':
+      return data.content
+    case 'unknown':
+      return `[${message.type || '未知消息'}]`
+  }
+
+  return `[${message.type || '消息'}]`
+}
+
+const localDate = (timestamp: number): string => {
+  const date = new Date(timestamp)
+  const year = date.getFullYear()
+  const month = String(date.getMonth() + 1).padStart(2, '0')
+  const day = String(date.getDate()).padStart(2, '0')
+  return `${year}-${month}-${day}`
+}
+
+const localTime = (timestamp: number): string =>
+  new Date(timestamp).toLocaleTimeString('zh-CN', {
+    hour12: false,
+    hour: '2-digit',
+    minute: '2-digit'
+  })
+
+export interface GroupReportInput {
+  prompt: string
+  metadata: GroupReportMetadata
+  topSpeakers: ReportSpeakerRank[]
+  activeTimeline: string
+}
+
+export const buildGroupReportInput = (
+  messages: Message[],
+  contact: Contact | null,
+  isGroup: boolean
+): GroupReportInput => {
+  const rows = messages.map((message) => ({
+    datetime: message.datetime,
+    timestamp: new Date(message.datetime).getTime(),
+    sender: summarySender(message, contact, isGroup),
+    content: summaryContent(message),
+    avatar: message.img
+  }))
+
+  let firstTimestamp = Number.POSITIVE_INFINITY
+  let lastTimestamp = Number.NEGATIVE_INFINITY
+  for (const row of rows) {
+    if (!Number.isFinite(row.timestamp)) continue
+    firstTimestamp = Math.min(firstTimestamp, row.timestamp)
+    lastTimestamp = Math.max(lastTimestamp, row.timestamp)
+  }
+  if (!Number.isFinite(firstTimestamp)) firstTimestamp = Date.now()
+  if (!Number.isFinite(lastTimestamp)) lastTimestamp = firstTimestamp
+  const speakerCounts = new Map<string, number>()
+  const hourCounts = new Map<number, number>()
+  const avatars: Record<string, string | undefined> = {}
+  for (const row of rows) {
+    speakerCounts.set(row.sender, (speakerCounts.get(row.sender) || 0) + 1)
+    if (Number.isFinite(row.timestamp)) {
+      const hour = new Date(row.timestamp).getHours()
+      hourCounts.set(hour, (hourCounts.get(hour) || 0) + 1)
+    }
+    if (row.avatar && !avatars[row.sender]) avatars[row.sender] = row.avatar
+  }
+
+  const topSpeakers = Array.from(speakerCounts, ([name, count]) => ({ name, count }))
+    .sort((left, right) => right.count - left.count)
+    .slice(0, 5)
+  const activeTimeline = Array.from(hourCounts, ([hour, count]) => ({ hour, count }))
+    .sort((left, right) => right.count - left.count)
+    .slice(0, 4)
+    .sort((left, right) => left.hour - right.hour)
+    .map(
+      ({ hour, count }) =>
+        `${String(hour).padStart(2, '0')}:00-${String(hour).padStart(2, '0')}:59（${count}条）`
+    )
+    .join('、')
+
+  const startDate = localDate(firstTimestamp)
+  const endDate = localDate(lastTimestamp)
+  const sameDay = startDate === endDate
+  const dateRange = sameDay
+    ? `${startDate} ${localTime(firstTimestamp)}-${localTime(lastTimestamp)}`
+    : `${startDate} ${localTime(firstTimestamp)} 至 ${endDate} ${localTime(lastTimestamp)}`
+  const timeSpan = sameDay
+    ? `${Math.max(1, Math.ceil((lastTimestamp - firstTimestamp) / 3600000))}小时`
+    : `${Math.max(1, Math.ceil((lastTimestamp - firstTimestamp) / 86400000))}天`
+  const contactName = contact?.m_nsNickName || ''
+  const groupName = contactName && !isInternalIdentifier(contactName) ? contactName : '未命名会话'
+  const metadata: GroupReportMetadata = {
+    groupName,
+    reportDate: sameDay ? startDate : `${startDate}_to_${endDate}`,
+    dateRange,
+    messageCount: rows.length,
+    activeUsers: speakerCounts.size,
+    timeSpan,
+    generatedAt: new Date().toLocaleString('zh-CN', { hour12: false }),
+    recordNote: `基于当前已加载的 ${rows.length} 条记录`,
+    footerNote: '基于已读取聊天记录生成；图片、表情等未解析内容仅按类型统计。',
+    heroParticipants: topSpeakers.slice(0, 4).map((speaker) => speaker.name),
+    avatars
+  }
+  const transcript = rows.map((row) => `${row.datetime} ${row.sender}：${row.content}`).join('\n')
+  const prompt = `请为以下微信${isGroup ? '群聊' : '对话'}记录生成日报 JSON。
+
+会话名：${groupName}
+时间范围：${dateRange}
+消息数：${rows.length}
+活跃人数：${speakerCounts.size}
+完整性：仅基于当前应用已加载的记录。
+
+聊天记录：
+${transcript}`
+  return { prompt, metadata, topSpeakers, activeTimeline }
+}
+
+const asObject = (value: unknown): Record<string, unknown> =>
+  value && typeof value === 'object' && !Array.isArray(value)
+    ? (value as Record<string, unknown>)
+    : {}
+
+const asString = (value: unknown): string => (typeof value === 'string' ? value.trim() : '')
+const asName = (value: unknown): string => {
+  const name = asString(value)
+  return name && !isInternalIdentifier(name) ? name : '未命名群成员'
+}
+const asNumber = (value: unknown): number => {
+  const parsed = Number(value)
+  return Number.isFinite(parsed) ? parsed : 0
+}
+const asArray = (value: unknown): unknown[] => (Array.isArray(value) ? value : [])
+const asStrings = (value: unknown, limit = 20): string[] =>
+  asArray(value).map(asString).filter(Boolean).slice(0, limit)
+
+const normalizeHeat = (value: unknown): ReportHeat => {
+  const heat = asString(value)
+  if (heat.includes('高')) return '高'
+  if (heat.includes('低')) return '低'
+  return '中'
+}
+
+const extractJson = (raw: string): unknown => {
+  const cleaned = raw
+    .trim()
+    .replace(/^```(?:json)?\s*/i, '')
+    .replace(/\s*```$/i, '')
+  const start = cleaned.indexOf('{')
+  const end = cleaned.lastIndexOf('}')
+  if (start < 0 || end <= start) throw new Error('AI 未返回可解析的日报 JSON')
+  return JSON.parse(cleaned.slice(start, end + 1))
+}
+
+export const parseGroupDailyReport = (
+  raw: string,
+  topSpeakers: ReportSpeakerRank[],
+  activeTimeline: string
+): GroupDailyReport => {
+  const root = asObject(extractJson(raw))
+  const topics: ReportTopic[] = asArray(root.topics)
+    .map((value) => {
+      const item = asObject(value)
+      return {
+        title: asString(item.title),
+        timeRange: asString(item.timeRange),
+        heat: normalizeHeat(item.heat),
+        participants: asArray(item.participants).map(asName).filter(Boolean).slice(0, 5),
+        summary: asString(item.summary),
+        conclusion: asString(item.conclusion),
+        keywords: asStrings(item.keywords, 8)
+      }
+    })
+    .filter((topic) => topic.title && topic.summary)
+    .slice(0, 7)
+  if (!topics.length) throw new Error('AI 日报中没有有效话题')
+
+  const resources: ReportResource[] = asArray(root.resources)
+    .map((value) => {
+      const item = asObject(value)
+      return {
+        title: asString(item.title),
+        description: asString(item.description),
+        sender: item.sender ? asName(item.sender) : undefined
+      }
+    })
+    .filter((item) => item.title && item.description)
+  const importantMessages: ReportImportantMessage[] = asArray(root.importantMessages)
+    .map((value) => {
+      const item = asObject(value)
+      return {
+        sender: asName(item.sender),
+        time: asString(item.time),
+        content: asString(item.content),
+        note: asString(item.note)
+      }
+    })
+    .filter((item) => item.sender && item.content)
+  const quotes: ReportQuote[] = asArray(root.quotes)
+    .map((value) => {
+      const item = asObject(value)
+      return {
+        messages: asArray(item.messages)
+          .map((messageValue) => {
+            const message = asObject(messageValue)
+            return { sender: asName(message.sender), content: asString(message.content) }
+          })
+          .filter((message) => message.sender && message.content),
+        note: asString(item.note)
+      }
+    })
+    .filter((quote) => quote.messages.length)
+    .slice(0, 3)
+  const qa: ReportQuestionAnswer[] = asArray(root.qa)
+    .map((value) => {
+      const item = asObject(value)
+      return {
+        question: asString(item.question),
+        answer: asString(item.answer),
+        answerer: item.answerer ? asName(item.answerer) : undefined
+      }
+    })
+    .filter((item) => item.question && item.answer)
+
+  return {
+    overview: asString(root.overview) || '基于已读取记录生成的群聊日报。',
+    topics,
+    resources,
+    importantMessages,
+    quotes,
+    qa,
+    analytics: {
+      topicHeat: topics.map((topic) => ({
+        topic: topic.title,
+        score: topic.heat === '高' ? 100 : topic.heat === '中' ? 65 : 35
+      })),
+      activeTimeline: activeTimeline || '暂无可用时间统计',
+      topSpeakers: topSpeakers.map((speaker) => ({
+        name: speaker.name,
+        count: Math.max(0, asNumber(speaker.count))
+      }))
+    },
+    keywords: asStrings(root.keywords, 15)
+  }
+}