Files
weflow-new/electron/services/export/formatters/TxtFormatter.ts
T
2026-06-30 00:18:31 +08:00

416 lines
16 KiB
TypeScript

import * as fs from 'fs';
// '../../wcdbService';
import { resolveExportDisplayProfile } from '../../export/contacts/contactResolver';
import { buildGroupNicknameIdCandidates } from '../../export/contacts/groupNickname';
import { appendTransferDesc, isTransferExportContent, resolveTransferDesc } from '../../export/parsers/transferParser';
import { formatTimestamp } from '../../export/utils/timestamp';
import { parallelLimit } from '../../export/utils/parallelLimit';
import { ExportDisplayProfile, MediaExportItem } from '../../export/types';
import { wcdbService } from "../../wcdbService";
export class TxtFormatter {
constructor(private exportService: any) {}
public async export(sessionId: any, outputPath: any, options: any, onProgress: any, control: any): Promise<{ success: boolean; error?: string }> {
try {
this.exportService.throwIfStopRequested(control)
const conn = await this.exportService.ensureConnected()
if (!conn.success || !conn.cleanedWxid) return { success: false, error: conn.error }
const cleanedMyWxid = conn.cleanedWxid
const isGroup = sessionId.includes('@chatroom')
const rawMyWxid = this.exportService.getConfiguredMyWxid()
const sessionInfo = await this.exportService.getContactInfo(sessionId)
const myInfo = await this.exportService.getContactInfo(cleanedMyWxid)
const contactCache = new Map<string, { success: boolean; contact?: any; error?: string }>()
const getContactCached = async (username: string) => {
if (contactCache.has(username)) {
return contactCache.get(username)!
}
const result = await wcdbService.getContact(username)
contactCache.set(username, result)
return result
}
onProgress?.({
current: 0,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'preparing'
})
const collectParams = this.exportService.resolveCollectParams(options)
const collectProgressReporter = this.exportService.createCollectProgressReporter(sessionInfo.displayName, onProgress, 5)
const collected = await this.exportService.collectMessages(
sessionId,
cleanedMyWxid,
options.dateRange,
options.senderUsername,
collectParams.mode,
collectParams.targetMediaTypes,
control,
collectProgressReporter
)
const totalMessages = collected.rows.length
// 如果没有消息,不创建文件
if (totalMessages === 0) {
return { success: false, error: await this.exportService.buildNoMessagesError(sessionId, collected) }
}
await this.exportService.createWeliveRawOutputPlaceholder(outputPath, control)
await this.exportService.hydrateEmojiCaptionsForMessages(sessionId, collected.rows, control)
// 解析引用消息
await this.exportService.resolveQuotedMessagesForExport(collected.rows, sessionId)
const voiceMessages = options.exportVoiceAsText
? collected.rows.filter((msg: any) => msg.localType === 34)
: []
if (options.exportVoiceAsText && voiceMessages.length > 0) {
await this.exportService.ensureVoiceModel(onProgress)
}
const senderUsernames = new Set<string>()
let senderScanIndex = 0
for (const msg of collected.rows) {
if ((senderScanIndex++ & 0x7f) === 0) {
this.exportService.throwIfStopRequested(control)
}
if (msg.senderUsername) senderUsernames.add(msg.senderUsername)
}
senderUsernames.add(sessionId)
await this.exportService.preloadContacts(senderUsernames, contactCache)
// 获取群昵称(用于转账描述等)
const groupNicknameCandidates = isGroup
? buildGroupNicknameIdCandidates([
...Array.from(senderUsernames.values()),
...collected.rows.map((msg: any) => msg.senderUsername),
cleanedMyWxid,
rawMyWxid
])
: []
const groupNicknamesMap = isGroup
? await this.exportService.getGroupNicknamesForRoom(sessionId, groupNicknameCandidates)
: new Map<string, string>()
const sortedMessages = collected.rows
const { exportMediaEnabled, mediaRootDir, mediaRelativePrefix } = this.exportService.getMediaLayout(outputPath, options)
const mediaMessages = this.exportService.collectMediaMessagesForExport(sortedMessages, options)
const mediaCache = new Map<string, MediaExportItem | null>()
const mediaDirCache = new Set<string>()
const beforeMediaDoneFiles = this.exportService.getMediaDoneFilesCount()
if (mediaMessages.length > 0) {
await this.exportService.preloadMediaLookupCaches(sessionId, mediaMessages, {
exportImages: options.exportImages,
exportVideos: options.exportVideos
}, control)
const voiceMediaMessages = mediaMessages.filter((msg: any) => msg.localType === 34)
if (voiceMediaMessages.length > 0) {
await this.exportService.preloadVoiceWavCache(sessionId, voiceMediaMessages, control)
}
onProgress?.({
current: 25,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'exporting-media',
phaseProgress: 0,
phaseTotal: mediaMessages.length,
phaseLabel: this.exportService.formatMediaPhaseLabel(0, mediaMessages.length, beforeMediaDoneFiles),
...this.exportService.getMediaTelemetrySnapshot(),
estimatedTotalMessages: totalMessages
})
const mediaConcurrency = this.exportService.getClampedConcurrency(options.exportConcurrency)
let mediaExported = 0
await parallelLimit(mediaMessages, mediaConcurrency, async (msg: any) => {
this.exportService.throwIfStopRequested(control)
const mediaKey = this.exportService.getMediaCacheKey(msg)
if (!mediaCache.has(mediaKey)) {
const mediaItem = await this.exportService.exportMediaForMessage(msg, sessionId, mediaRootDir, mediaRelativePrefix, {
exportImages: options.exportImages,
exportVoices: options.exportVoices,
exportVideos: options.exportVideos,
exportEmojis: options.exportEmojis,
exportFiles: options.exportFiles,
maxFileSizeMb: options.maxFileSizeMb,
exportVoiceAsText: options.exportVoiceAsText,
includeVideoPoster: options.format === 'html',
dirCache: mediaDirCache,
control
})
mediaCache.set(mediaKey, mediaItem)
}
mediaExported++
if (mediaExported % 5 === 0 || mediaExported === mediaMessages.length) {
onProgress?.({
current: 25,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'exporting-media',
phaseProgress: mediaExported,
phaseTotal: mediaMessages.length,
phaseLabel: this.exportService.formatMediaPhaseLabel(mediaExported, mediaMessages.length, beforeMediaDoneFiles),
...this.exportService.getMediaTelemetrySnapshot()
})
}
})
}
await this.exportService.preloadWeliveRawEmojiMedia(sortedMessages, mediaCache, mediaRootDir, mediaRelativePrefix, options, control, onProgress, sessionInfo.displayName, 20)
const fileOnlyExportFailure = this.exportService.buildFileOnlyExportFailure(options, mediaMessages, beforeMediaDoneFiles)
if (fileOnlyExportFailure) return fileOnlyExportFailure
const voiceTranscriptMap = new Map<string, string>()
if (voiceMessages.length > 0) {
await this.exportService.preloadVoiceWavCache(sessionId, voiceMessages, control)
onProgress?.({
current: 45,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'exporting-voice',
phaseProgress: 0,
phaseTotal: voiceMessages.length,
phaseLabel: `语音转文字 0/${voiceMessages.length}`,
estimatedTotalMessages: totalMessages
})
const VOICE_CONCURRENCY = 4
let voiceTranscribed = 0
await parallelLimit(voiceMessages, VOICE_CONCURRENCY, async (msg: any) => {
this.exportService.throwIfStopRequested(control)
const transcript = await this.exportService.transcribeVoice(sessionId, String(msg.localId), msg.createTime, msg.senderUsername)
voiceTranscriptMap.set(this.exportService.getStableMessageKey(msg), transcript)
voiceTranscribed++
onProgress?.({
current: 45,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'exporting-voice',
phaseProgress: voiceTranscribed,
phaseTotal: voiceMessages.length,
phaseLabel: `语音转文字 ${voiceTranscribed}/${voiceMessages.length}`
})
})
}
onProgress?.({
current: 60,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'exporting',
estimatedTotalMessages: totalMessages,
collectedMessages: totalMessages,
exportedMessages: 0
})
await this.exportService.recordCreatedFileBeforeWrite(outputPath, control)
const stream = fs.createWriteStream(outputPath, { encoding: 'utf-8' })
const writeChunk = async (chunk: string): Promise<void> => {
await new Promise<void>((resolve, _reject) => {
this.exportService.throwIfStopRequested(control)
if (!stream.write(chunk)) {
stream.once('drain', resolve)
} else {
resolve()
}
})
}
const WRITE_BATCH = 120
let writeBuffer: string[] = []
const flushWriteBuffer = async (): Promise<void> => {
if (writeBuffer.length === 0) return
await writeChunk(writeBuffer.join(''))
writeBuffer = []
}
const senderProfileCache = new Map<string, ExportDisplayProfile>()
for (let i = 0; i < totalMessages; i++) {
if ((i & 0x7f) === 0) {
this.exportService.throwIfStopRequested(control)
}
const msg = sortedMessages[i]
const mediaKey = this.exportService.getMediaCacheKey(msg)
const mediaItem = mediaCache.has(mediaKey)
? mediaCache.get(mediaKey)
: await this.exportService.resolveWeliveRawMediaItem(msg, mediaRootDir, mediaRelativePrefix, options, control)
const shouldUseTranscript = msg.localType === 34 && options.exportVoiceAsText
const mediaPathValue = !shouldUseTranscript && mediaItem?.relativePath
? this.exportService.formatExportMediaPath(mediaItem.relativePath, options, 'text')
: undefined
const contentValue = shouldUseTranscript
? this.exportService.formatPlainExportContent(
msg.content,
msg.localType,
options,
voiceTranscriptMap.get(this.exportService.getStableMessageKey(msg)),
cleanedMyWxid,
msg.senderUsername,
msg.isSend,
msg.emojiCaption
)
: (mediaPathValue
|| this.exportService.formatPlainExportContent(
msg.content,
msg.localType,
options,
voiceTranscriptMap.get(this.exportService.getStableMessageKey(msg)),
cleanedMyWxid,
msg.senderUsername,
msg.isSend,
msg.emojiCaption
))
// 转账消息:追加 "谁转账给谁" 信息
let enrichedContentValue = contentValue
if (isTransferExportContent(contentValue) && msg.content) {
const transferDesc = await resolveTransferDesc(
msg.content,
cleanedMyWxid,
groupNicknamesMap,
async (username: string) => {
const c = await getContactCached(username as string)
if (c.success && c.contact) {
return c.contact.remark || c.contact.nickName || c.contact.alias || username
}
return username
}
)
if (transferDesc) {
enrichedContentValue = appendTransferDesc(contentValue, transferDesc)
}
}
const quotedReplyDisplay = await this.exportService.resolveQuotedReplyDisplayWithNames({
content: msg.content,
isGroup,
displayNamePreference: options.displayNamePreference,
getContact: getContactCached,
groupNicknamesMap,
cleanedMyWxid,
rawMyWxid,
myDisplayName: myInfo.displayName || cleanedMyWxid
})
if (quotedReplyDisplay) {
enrichedContentValue = this.exportService.buildQuotedReplyText(quotedReplyDisplay)
}
const appendedLinkContent = quotedReplyDisplay
? null
: this.exportService.formatLinkCardExportText(msg.content, msg.localType, 'append-url')
if (appendedLinkContent) {
enrichedContentValue = appendedLinkContent
}
let senderRole: string
let senderWxid: string
let senderNickname: string
let senderRemark = ''
if (isGroup) {
const senderProfileKey = `${msg.isSend ? cleanedMyWxid : (msg.senderUsername || cleanedMyWxid)}::${msg.isSend ? '1' : '0'}`
let senderProfile = senderProfileCache.get(senderProfileKey)
if (!senderProfile) {
senderProfile = await resolveExportDisplayProfile(
msg.isSend ? cleanedMyWxid : (msg.senderUsername || cleanedMyWxid),
options.displayNamePreference,
getContactCached,
groupNicknamesMap,
msg.isSend ? (myInfo.displayName || cleanedMyWxid) : (msg.senderUsername || ''),
msg.isSend ? [rawMyWxid, cleanedMyWxid] : []
)
senderProfileCache.set(senderProfileKey, senderProfile)
}
senderWxid = senderProfile.wxid
senderNickname = senderProfile.nickname
senderRemark = senderProfile.remark
senderRole = senderProfile.displayName
} else if (msg.isSend) {
senderRole = '我'
senderWxid = cleanedMyWxid
senderNickname = myInfo.displayName || cleanedMyWxid
} else {
senderWxid = sessionId
const contactDetail = await getContactCached(sessionId)
if (contactDetail.success && contactDetail.contact) {
senderNickname = contactDetail.contact.nickName || sessionId
senderRemark = contactDetail.contact.remark || ''
senderRole = senderRemark || senderNickname
} else {
senderNickname = sessionInfo.displayName || sessionId
senderRole = senderNickname
}
}
writeBuffer.push(`${formatTimestamp(msg.createTime)} '${senderRole}'\n${enrichedContentValue}\n\n`)
if (writeBuffer.length >= WRITE_BATCH) {
await flushWriteBuffer()
}
if ((i + 1) % 200 === 0) {
const progress = 60 + Math.floor((i + 1) / sortedMessages.length * 30)
onProgress?.({
current: progress,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'exporting',
estimatedTotalMessages: totalMessages,
collectedMessages: totalMessages,
exportedMessages: i + 1
})
}
}
await flushWriteBuffer()
onProgress?.({
current: 92,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'writing',
estimatedTotalMessages: totalMessages,
collectedMessages: totalMessages,
exportedMessages: totalMessages
})
this.exportService.throwIfStopRequested(control)
await new Promise<void>((resolve, reject) => {
stream.on('error', reject)
stream.end(() => resolve())
})
onProgress?.({
current: 100,
total: 100,
currentSession: sessionInfo.displayName,
phase: 'complete',
estimatedTotalMessages: totalMessages,
collectedMessages: totalMessages,
exportedMessages: totalMessages,
writtenFiles: 1
})
return { success: true }
} catch (e) {
if (this.exportService.isStopError(e)) {
return { success: false, error: '导出任务已停止' }
}
if (this.exportService.isPauseError(e)) {
return { success: false, error: '导出任务已暂停' }
}
return { success: false, error: String(e) }
}
}
}