fix(desktop): harden session, meeting, caption and LLM lifecycles; route LLM calls through the gateway

This commit is contained in:
Yun Chan 2026-09-28 02:16:15 +09:00
parent 3a46437f28
commit ddc78546f0
62 changed files with 4786 additions and 648 deletions

View file

@ -3,7 +3,7 @@
// 오디오/비디오 파일 → ffmpeg PCM 변환 → 30초 청크 순차 STT → 병합
import { EventEmitter } from 'events'
import { spawn } from 'child_process'
import { spawn, type ChildProcess } from 'child_process'
import path from 'path'
import fs from 'fs'
import { app } from 'electron'
@ -54,16 +54,31 @@ const defaultFfmpegLocator: FfmpegLocator = {
provision: () => getRuntimeProvisioner().ensure('ffmpeg'),
}
/**
* 전사 작업 한 건의 상태. 싱글톤 필드에 두면 취소된 작업의 늦은 정리(임시 폴더 삭제·idle 복귀)가
* 다음 작업을 덮었다 — 작업마다 따로 갖는다.
*/
interface TranscriptionJob {
readonly id: string
readonly tempDir: string
cancelled: boolean
/** 이 작업이 띄운 ffmpeg 프로세스 — 취소하면 모두 종료한다 */
readonly processes: Set<ChildProcess>
}
function cancelledError(): D3ROError {
return new D3ROError(ErrorCode.FileTranscriptionCancelled, 'Transcription cancelled')
}
class FileTranscriptionService extends EventEmitter {
constructor(private readonly _ffmpegLocator: FfmpegLocator = defaultFfmpegLocator) {
super()
}
private _state: FileTranscriptionState = 'idle'
private _jobId: string | null = null
private _cancelled = false
/** 현재 작업. 취소하면 곧바로 null 이 되고, 남은 정리는 그 작업 객체만 건드린다. */
private _job: TranscriptionJob | null = null
private _progress: FileTranscriptionProgress | null = null
private _tempDir: string | null = null
get state(): FileTranscriptionState {
return this._state
@ -72,7 +87,7 @@ class FileTranscriptionService extends EventEmitter {
getStateInfo(): FileTranscriptionStateInfo {
return {
state: this._state,
jobId: this._jobId,
jobId: this._job?.id ?? null,
progress: this._progress,
}
}
@ -110,45 +125,49 @@ class FileTranscriptionService extends EventEmitter {
if (err instanceof D3ROError) throw err
}
this._jobId = crypto.randomUUID()
this._cancelled = false
this._tempDir = path.join(app.getPath('temp'), `d3ro-ft-${this._jobId}`)
fs.mkdirSync(this._tempDir, { recursive: true })
const jobId = crypto.randomUUID()
const job: TranscriptionJob = {
id: jobId,
tempDir: path.join(app.getPath('temp'), `d3ro-ft-${jobId}`),
cancelled: false,
processes: new Set(),
}
this._job = job
this._progress = null
fs.mkdirSync(job.tempDir, { recursive: true })
const startTime = Date.now()
const fileName = path.basename(filePath)
const throwIfCancelled = (): void => {
if (job.cancelled) throw cancelledError()
}
try {
// Phase 1: ffmpeg 확보(설치본에는 없으므로 필요 시 다운로드) → PCM WAV 변환
this._setState('converting')
this._setJobState(job, 'converting')
const ffmpegPath = await this._ensureFfmpeg()
if (this._cancelled) {
throw new D3ROError(ErrorCode.FileTranscriptionCancelled, 'Transcription cancelled')
}
const wavPath = path.join(this._tempDir, 'audio.wav')
await this._convertToWav(ffmpegPath, filePath, wavPath)
if (this._cancelled) {
throw new D3ROError(ErrorCode.FileTranscriptionCancelled, 'Transcription cancelled')
}
throwIfCancelled()
const wavPath = path.join(job.tempDir, 'audio.wav')
await this._convertToWav(job, ffmpegPath, filePath, wavPath)
throwIfCancelled()
// 오디오 길이 확인
const totalDurationSec = await this._probeDuration(ffmpegPath, wavPath)
const totalDurationSec = await this._probeDuration(job, ffmpegPath, wavPath)
throwIfCancelled()
const totalChunks = countChunks(totalDurationSec, CHUNK_DURATION_SEC)
// Phase 2: 청크별 STT
this._setState('transcribing')
this._setJobState(job, 'transcribing')
const allSegments: FileTranscriptionSegment[] = []
const allTexts: string[] = []
let previousContext = ''
for (let i = 0; i < totalChunks; i++) {
if (this._cancelled) {
throw new D3ROError(ErrorCode.FileTranscriptionCancelled, 'Transcription cancelled')
}
throwIfCancelled()
const startSec = i * CHUNK_DURATION_SEC
const chunkBuffer = await this._extractChunk(ffmpegPath, wavPath, startSec, CHUNK_DURATION_SEC)
const chunkBuffer = await this._extractChunk(job, ffmpegPath, wavPath, startSec, CHUNK_DURATION_SEC)
throwIfCancelled()
const sttService = getSTTManager()
const lang = language ?? (configGet('sttLanguage') as string | undefined) ?? 'auto'
@ -158,6 +177,8 @@ class FileTranscriptionService extends EventEmitter {
initialPrompt: previousContext || undefined,
vadFilter: true,
})
// 인식 중에 취소됐으면 결과를 버린다(STT 호출 자체는 끊을 수 없다)
throwIfCancelled()
if (result.text && result.text.trim().length > 0) {
allTexts.push(result.text.trim())
@ -173,23 +194,24 @@ class FileTranscriptionService extends EventEmitter {
}
}
this._progress = {
jobId: this._jobId!,
const progress: FileTranscriptionProgress = {
jobId,
currentChunk: i + 1,
totalChunks,
percent: Math.round(((i + 1) / totalChunks) * 100),
currentText: result.text?.trim() ?? '',
}
if (this._job === job) this._progress = progress
this._sendToRenderer(IPC_CHANNELS.FILE_TRANSCRIPTION.PROGRESS, this._progress)
this.emit('progress', this._progress)
this._sendToRenderer(IPC_CHANNELS.FILE_TRANSCRIPTION.PROGRESS, progress)
this.emit('progress', progress)
}
const fullText = allTexts.join(' ')
const processingTimeMs = Date.now() - startTime
const resultData: FileTranscriptionResult = {
jobId: this._jobId!,
jobId,
filePath,
fileName,
fullText,
@ -225,39 +247,50 @@ class FileTranscriptionService extends EventEmitter {
logger.warn('Failed to save file transcription to history:', err)
}
this._setState('completed')
this._setJobState(job, 'completed')
this._sendToRenderer(IPC_CHANNELS.FILE_TRANSCRIPTION.COMPLETE, resultData)
this.emit('complete', resultData)
return resultData
} catch (err) {
if (err instanceof D3ROError && err.code === ErrorCode.FileTranscriptionCancelled) {
this._setState('idle')
throw err
// 취소된 작업의 실패(ffmpeg 종료 등)는 모두 취소로 본다
if (job.cancelled || (err instanceof D3ROError && err.code === ErrorCode.FileTranscriptionCancelled)) {
throw cancelledError()
}
this._setState('error')
this._setJobState(job, 'error')
const errorMsg = err instanceof Error ? err.message : String(err)
this._sendToRenderer(IPC_CHANNELS.FILE_TRANSCRIPTION.ERROR, { message: errorMsg })
this.emit('error', err)
// 'error' 는 리스너가 없으면 던져진다 — 실패 알림은 'failure' 로 보낸다
this.emit('failure', err)
throw err instanceof D3ROError
? err
: new D3ROError(ErrorCode.FileTranscriptionChunkFailed, errorMsg)
} finally {
this._cleanup()
// 완료/에러 후 idle로 복귀
setTimeout(() => {
this._state = 'idle'
this._jobId = null
this._killProcesses(job)
this._cleanup(job)
// 완료/에러/취소 후 곧바로 idle — 예전엔 1초 뒤 타이머가 작업 확인 없이 idle 로 돌려, 그사이 시작한
// 다음 작업의 상태·jobId·진행률을 지웠다. 이 작업이 아직 현재 작업일 때만 되돌린다.
if (this._job === job) {
this._job = null
this._progress = null
}, 1000)
this._state = 'idle'
}
}
}
/**
* 현재 작업을 취소한다 — 실행 중인 ffmpeg 를 곧바로 종료하고, 서비스는 즉시 idle 이 되어 새 작업을
* 받을 수 있다(취소된 작업의 남은 정리는 그 작업의 임시 폴더만 건드린다).
*/
cancel(): void {
if (this._state !== 'idle') {
this._cancelled = true
logger.info(`File transcription cancelled: ${this._jobId}`)
}
const job = this._job
if (!job) return
job.cancelled = true
this._killProcesses(job)
this._job = null
this._progress = null
this._setState('idle')
logger.info(`File transcription cancelled: ${job.id}`)
}
private _setState(state: FileTranscriptionState): void {
@ -265,6 +298,37 @@ class FileTranscriptionService extends EventEmitter {
this.emit('state-changed', state)
}
/** 현재 작업의 상태만 바꾼다 — 취소된 작업이 뒤늦게 상태를 덮지 않게 */
private _setJobState(job: TranscriptionJob, state: FileTranscriptionState): void {
if (this._job !== job) return
this._setState(state)
}
/** 작업의 ffmpeg 프로세스를 추적한다(취소 시 종료). 이미 취소된 작업이면 곧바로 종료한다. */
private _trackProcess(job: TranscriptionJob, proc: ChildProcess): ChildProcess {
job.processes.add(proc)
const forget = (): void => {
job.processes.delete(proc)
}
proc.on('close', forget)
proc.on('error', forget)
if (job.cancelled) this._killProcess(proc)
return proc
}
private _killProcesses(job: TranscriptionJob): void {
for (const proc of job.processes) this._killProcess(proc)
job.processes.clear()
}
private _killProcess(proc: ChildProcess): void {
try {
if (proc.exitCode === null && !proc.killed) proc.kill()
} catch (err) {
logger.warn(`ffmpeg kill failed: ${err instanceof Error ? err.message : String(err)}`)
}
}
private _sendToRenderer(channel: string, data: unknown): void {
try {
const mainWindow = getMainWindow()
@ -298,13 +362,16 @@ class FileTranscriptionService extends EventEmitter {
/**
* ffmpeg로 미디어 파일을 PCM16 16kHz mono WAV로 변환
*/
private _convertToWav(ffmpegPath: string, inputPath: string, outputPath: string): Promise<void> {
private _convertToWav(job: TranscriptionJob, ffmpegPath: string, inputPath: string, outputPath: string): Promise<void> {
return new Promise((resolve, reject) => {
const args = buildConvertToWavArgs(inputPath, outputPath)
logger.info(`ffmpeg convert: ${ffmpegPath} ${args.join(' ')}`)
const proc = spawn(ffmpegPath, args, { stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true })
const proc = this._trackProcess(
job,
spawn(ffmpegPath, args, { stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true }),
)
let stderr = ''
proc.stderr?.on('data', (data: Buffer) => {
@ -329,13 +396,16 @@ class FileTranscriptionService extends EventEmitter {
/**
* ffprobe(ffmpeg)로 오디오 길이 측정 (초)
*/
private _probeDuration(ffmpegPath: string, wavPath: string): Promise<number> {
private _probeDuration(job: TranscriptionJob, ffmpegPath: string, wavPath: string): Promise<number> {
return new Promise((resolve, reject) => {
// ffprobe는 보통 ffmpeg과 같은 디렉토리에 있으나,
// 내려받는 런타임은 ffmpeg만 제공 → -i로 duration 추출
const args = buildProbeDurationArgs(wavPath)
const proc = spawn(ffmpegPath, args, { stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true })
const proc = this._trackProcess(
job,
spawn(ffmpegPath, args, { stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true }),
)
let stderr = ''
proc.stderr?.on('data', (data: Buffer) => {
@ -362,6 +432,7 @@ class FileTranscriptionService extends EventEmitter {
* WAV 파일에서 특정 구간을 PCM16 Buffer로 추출
*/
private _extractChunk(
job: TranscriptionJob,
ffmpegPath: string,
wavPath: string,
startSec: number,
@ -370,7 +441,10 @@ class FileTranscriptionService extends EventEmitter {
return new Promise((resolve, reject) => {
const args = buildExtractChunkArgs(wavPath, startSec, durationSec)
const proc = spawn(ffmpegPath, args, { stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true })
const proc = this._trackProcess(
job,
spawn(ffmpegPath, args, { stdio: ['pipe', 'pipe', 'pipe'], windowsHide: true }),
)
const chunks: Buffer[] = []
proc.stdout?.on('data', (data: Buffer) => {
@ -391,20 +465,21 @@ class FileTranscriptionService extends EventEmitter {
})
}
private _cleanup(): void {
if (this._tempDir && fs.existsSync(this._tempDir)) {
/** 이 작업의 임시 폴더만 지운다 */
private _cleanup(job: TranscriptionJob): void {
if (fs.existsSync(job.tempDir)) {
try {
fs.rmSync(this._tempDir, { recursive: true, force: true })
fs.rmSync(job.tempDir, { recursive: true, force: true })
} catch (err) {
logger.warn('Failed to cleanup temp dir:', err)
}
this._tempDir = null
}
}
dispose(): void {
const job = this._job
this.cancel()
this._cleanup()
if (job) this._cleanup(job)
this.removeAllListeners()
}
}