+
diff --git a/src/renderer/src/utils/group-report.ts b/src/renderer/src/utils/group-report.ts
new file mode 100644
index 0000000..9d3aab2
--- /dev/null
+++ b/src/renderer/src/utils/group-report.ts
@@ -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
()
+ const hourCounts = new Map()
+ const avatars: Record = {}
+ 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 =>
+ value && typeof value === 'object' && !Array.isArray(value)
+ ? (value as Record)
+ : {}
+
+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)
+ }
+}
diff --git a/src/shared/group-report.ts b/src/shared/group-report.ts
new file mode 100644
index 0000000..cbd4547
--- /dev/null
+++ b/src/shared/group-report.ts
@@ -0,0 +1,92 @@
+export type ReportHeat = '高' | '中' | '低'
+
+export interface ReportTopic {
+ title: string
+ timeRange: string
+ heat: ReportHeat
+ participants: string[]
+ summary: string
+ conclusion?: string
+ keywords: string[]
+}
+
+export interface ReportResource {
+ title: string
+ description: string
+ sender?: string
+}
+
+export interface ReportImportantMessage {
+ sender: string
+ time: string
+ content: string
+ note: string
+}
+
+export interface ReportQuoteMessage {
+ sender: string
+ content: string
+}
+
+export interface ReportQuote {
+ messages: ReportQuoteMessage[]
+ note: string
+}
+
+export interface ReportQuestionAnswer {
+ question: string
+ answer: string
+ answerer?: string
+}
+
+export interface ReportTopicHeat {
+ topic: string
+ score: number
+}
+
+export interface ReportSpeakerRank {
+ name: string
+ count: number
+}
+
+export interface GroupDailyReport {
+ overview: string
+ topics: ReportTopic[]
+ resources: ReportResource[]
+ importantMessages: ReportImportantMessage[]
+ quotes: ReportQuote[]
+ qa: ReportQuestionAnswer[]
+ analytics: {
+ topicHeat: ReportTopicHeat[]
+ activeTimeline: string
+ topSpeakers: ReportSpeakerRank[]
+ }
+ keywords: string[]
+}
+
+export interface GroupReportMetadata {
+ groupName: string
+ reportDate: string
+ dateRange: string
+ messageCount: number
+ activeUsers: number
+ timeSpan: string
+ generatedAt: string
+ recordNote: string
+ footerNote: string
+ heroParticipants: string[]
+ avatars: Record
+}
+
+export interface GroupReportExportRequest {
+ report: GroupDailyReport
+ metadata: GroupReportMetadata
+}
+
+export interface GroupReportExportResult {
+ success: boolean
+ htmlPath?: string
+ pngPath?: string
+ imageDataUrl?: string
+ error?: string
+}