mirror of
https://github.com/hicccc77/WeFlow.git
synced 2026-03-25 15:25:50 +00:00
372 lines
11 KiB
TypeScript
372 lines
11 KiB
TypeScript
import { ConfigService } from './config'
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import { chatService, type ChatSession, type Message } from './chatService'
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import { wcdbService } from './wcdbService'
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import { httpService } from './httpService'
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interface SessionBaseline {
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lastTimestamp: number
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unreadCount: number
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}
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interface MessagePushPayload {
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event: 'message.new'
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sessionId: string
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messageKey: string
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avatarUrl?: string
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sourceName: string
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groupName?: string
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content: string | null
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}
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const PUSH_CONFIG_KEYS = new Set([
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'messagePushEnabled',
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'dbPath',
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'decryptKey',
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'myWxid'
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])
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class MessagePushService {
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private readonly configService: ConfigService
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private readonly sessionBaseline = new Map<string, SessionBaseline>()
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private readonly recentMessageKeys = new Map<string, number>()
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private readonly groupNicknameCache = new Map<string, { nicknames: Record<string, string>; updatedAt: number }>()
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private readonly debounceMs = 350
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private readonly recentMessageTtlMs = 10 * 60 * 1000
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private readonly groupNicknameCacheTtlMs = 5 * 60 * 1000
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private debounceTimer: ReturnType<typeof setTimeout> | null = null
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private processing = false
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private rerunRequested = false
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private started = false
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private baselineReady = false
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constructor() {
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this.configService = ConfigService.getInstance()
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}
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start(): void {
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if (this.started) return
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this.started = true
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void this.refreshConfiguration('startup')
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}
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handleDbMonitorChange(type: string, json: string): void {
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if (!this.started) return
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if (!this.isPushEnabled()) return
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let payload: Record<string, unknown> | null = null
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try {
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payload = JSON.parse(json)
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} catch {
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payload = null
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}
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const tableName = String(payload?.table || '').trim().toLowerCase()
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if (tableName && tableName !== 'session') {
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return
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}
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this.scheduleSync()
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}
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async handleConfigChanged(key: string): Promise<void> {
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if (!PUSH_CONFIG_KEYS.has(String(key || '').trim())) return
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if (key === 'dbPath' || key === 'decryptKey' || key === 'myWxid') {
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this.resetRuntimeState()
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chatService.close()
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}
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await this.refreshConfiguration(`config:${key}`)
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}
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handleConfigCleared(): void {
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this.resetRuntimeState()
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chatService.close()
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}
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private isPushEnabled(): boolean {
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return this.configService.get('messagePushEnabled') === true
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}
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private resetRuntimeState(): void {
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this.sessionBaseline.clear()
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this.recentMessageKeys.clear()
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this.groupNicknameCache.clear()
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this.baselineReady = false
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if (this.debounceTimer) {
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clearTimeout(this.debounceTimer)
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this.debounceTimer = null
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}
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}
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private async refreshConfiguration(reason: string): Promise<void> {
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if (!this.isPushEnabled()) {
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this.resetRuntimeState()
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return
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}
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const connectResult = await chatService.connect()
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if (!connectResult.success) {
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console.warn(`[MessagePushService] Bootstrap connect failed (${reason}):`, connectResult.error)
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return
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}
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await this.bootstrapBaseline()
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}
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private async bootstrapBaseline(): Promise<void> {
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const sessionsResult = await chatService.getSessions()
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if (!sessionsResult.success || !sessionsResult.sessions) {
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return
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}
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this.setBaseline(sessionsResult.sessions as ChatSession[])
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this.baselineReady = true
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}
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private scheduleSync(): void {
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if (this.debounceTimer) {
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clearTimeout(this.debounceTimer)
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}
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this.debounceTimer = setTimeout(() => {
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this.debounceTimer = null
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void this.flushPendingChanges()
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}, this.debounceMs)
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}
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private async flushPendingChanges(): Promise<void> {
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if (this.processing) {
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this.rerunRequested = true
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return
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}
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this.processing = true
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try {
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if (!this.isPushEnabled()) return
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const connectResult = await chatService.connect()
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if (!connectResult.success) {
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console.warn('[MessagePushService] Sync connect failed:', connectResult.error)
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return
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}
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const sessionsResult = await chatService.getSessions()
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if (!sessionsResult.success || !sessionsResult.sessions) {
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return
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}
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const sessions = sessionsResult.sessions as ChatSession[]
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if (!this.baselineReady) {
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this.setBaseline(sessions)
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this.baselineReady = true
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return
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}
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const previousBaseline = new Map(this.sessionBaseline)
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this.setBaseline(sessions)
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const candidates = sessions.filter((session) => this.shouldInspectSession(previousBaseline.get(session.username), session))
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for (const session of candidates) {
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await this.pushSessionMessages(session, previousBaseline.get(session.username))
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}
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} finally {
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this.processing = false
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if (this.rerunRequested) {
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this.rerunRequested = false
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this.scheduleSync()
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}
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}
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}
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private setBaseline(sessions: ChatSession[]): void {
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this.sessionBaseline.clear()
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for (const session of sessions) {
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this.sessionBaseline.set(session.username, {
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lastTimestamp: Number(session.lastTimestamp || 0),
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unreadCount: Number(session.unreadCount || 0)
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})
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}
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}
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private shouldInspectSession(previous: SessionBaseline | undefined, session: ChatSession): boolean {
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const sessionId = String(session.username || '').trim()
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if (!sessionId || sessionId.toLowerCase().includes('placeholder_foldgroup')) {
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return false
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}
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const summary = String(session.summary || '').trim()
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if (Number(session.lastMsgType || 0) === 10002 || summary.includes('撤回了一条消息')) {
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return false
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}
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const lastTimestamp = Number(session.lastTimestamp || 0)
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const unreadCount = Number(session.unreadCount || 0)
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if (!previous) {
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return unreadCount > 0 && lastTimestamp > 0
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}
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if (lastTimestamp <= previous.lastTimestamp) {
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return false
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}
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// unread 未增长时，大概率是自己发送、其他设备已读或状态同步，不作为主动推送
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return unreadCount > previous.unreadCount
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}
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private async pushSessionMessages(session: ChatSession, previous: SessionBaseline | undefined): Promise<void> {
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const since = Math.max(0, Number(previous?.lastTimestamp || 0) - 1)
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const newMessagesResult = await chatService.getNewMessages(session.username, since, 1000)
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if (!newMessagesResult.success || !newMessagesResult.messages || newMessagesResult.messages.length === 0) {
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return
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}
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for (const message of newMessagesResult.messages) {
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const messageKey = String(message.messageKey || '').trim()
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if (!messageKey) continue
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if (message.isSend === 1) continue
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if (previous && Number(message.createTime || 0) < Number(previous.lastTimestamp || 0)) {
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continue
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}
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if (this.isRecentMessage(messageKey)) {
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continue
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}
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const payload = await this.buildPayload(session, message)
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if (!payload) continue
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httpService.broadcastMessagePush(payload)
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this.rememberMessageKey(messageKey)
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}
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}
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private async buildPayload(session: ChatSession, message: Message): Promise<MessagePushPayload | null> {
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const sessionId = String(session.username || '').trim()
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const messageKey = String(message.messageKey || '').trim()
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if (!sessionId || !messageKey) return null
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const isGroup = sessionId.endsWith('@chatroom')
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const content = this.getMessageDisplayContent(message)
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if (isGroup) {
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const groupInfo = await chatService.getContactAvatar(sessionId)
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const groupName = session.displayName || groupInfo?.displayName || sessionId
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const sourceName = await this.resolveGroupSourceName(sessionId, message, session)
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return {
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event: 'message.new',
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sessionId,
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messageKey,
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avatarUrl: session.avatarUrl || groupInfo?.avatarUrl,
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groupName,
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sourceName,
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content
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}
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}
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const contactInfo = await chatService.getContactAvatar(sessionId)
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return {
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event: 'message.new',
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sessionId,
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messageKey,
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avatarUrl: session.avatarUrl || contactInfo?.avatarUrl,
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sourceName: session.displayName || contactInfo?.displayName || sessionId,
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content
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}
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}
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private getMessageDisplayContent(message: Message): string | null {
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switch (Number(message.localType || 0)) {
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case 1:
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return message.rawContent || null
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case 3:
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return '[图片]'
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case 34:
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return '[语音]'
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case 43:
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return '[视频]'
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case 47:
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return '[表情]'
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case 42:
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return message.cardNickname || '[名片]'
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case 48:
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return '[位置]'
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case 49:
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return message.linkTitle || message.fileName || '[消息]'
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default:
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return message.parsedContent || message.rawContent || null
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}
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}
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private async resolveGroupSourceName(chatroomId: string, message: Message, session: ChatSession): Promise<string> {
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const senderUsername = String(message.senderUsername || '').trim()
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if (!senderUsername) {
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return session.lastSenderDisplayName || '未知发送者'
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}
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const groupNicknames = await this.getGroupNicknames(chatroomId)
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const normalizedSender = this.normalizeAccountId(senderUsername)
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const nickname = groupNicknames[senderUsername]
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|| groupNicknames[senderUsername.toLowerCase()]
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|| groupNicknames[normalizedSender]
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|| groupNicknames[normalizedSender.toLowerCase()]
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if (nickname) {
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return nickname
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}
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const contactInfo = await chatService.getContactAvatar(senderUsername)
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return contactInfo?.displayName || senderUsername
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}
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private async getGroupNicknames(chatroomId: string): Promise<Record<string, string>> {
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const cacheKey = String(chatroomId || '').trim()
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if (!cacheKey) return {}
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const cached = this.groupNicknameCache.get(cacheKey)
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if (cached && Date.now() - cached.updatedAt < this.groupNicknameCacheTtlMs) {
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return cached.nicknames
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}
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const result = await wcdbService.getGroupNicknames(cacheKey)
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const nicknames = result.success && result.nicknames ? result.nicknames : {}
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this.groupNicknameCache.set(cacheKey, { nicknames, updatedAt: Date.now() })
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return nicknames
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}
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private normalizeAccountId(value: string): string {
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const trimmed = String(value || '').trim()
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if (!trimmed) return trimmed
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if (trimmed.toLowerCase().startsWith('wxid_')) {
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const match = trimmed.match(/^(wxid_[^_]+)/i)
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return match ? match[1] : trimmed
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}
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const suffixMatch = trimmed.match(/^(.+)_([a-zA-Z0-9]{4})$/)
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return suffixMatch ? suffixMatch[1] : trimmed
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}
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private isRecentMessage(messageKey: string): boolean {
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this.pruneRecentMessageKeys()
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const timestamp = this.recentMessageKeys.get(messageKey)
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return typeof timestamp === 'number' && Date.now() - timestamp < this.recentMessageTtlMs
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}
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private rememberMessageKey(messageKey: string): void {
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this.recentMessageKeys.set(messageKey, Date.now())
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this.pruneRecentMessageKeys()
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}
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private pruneRecentMessageKeys(): void {
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const now = Date.now()
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for (const [key, timestamp] of this.recentMessageKeys.entries()) {
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if (now - timestamp > this.recentMessageTtlMs) {
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this.recentMessageKeys.delete(key)
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}
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}
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}
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}
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export const messagePushService = new MessagePushService()
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