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