Files
sam-manage/app/Services/MeetingMinuteService.php
2026-02-25 11:45:01 +09:00

629 lines
21 KiB
PHP

<?php
namespace App\Services;
use App\Helpers\AiTokenHelper;
use App\Models\Juil\MeetingMinute;
use App\Models\Juil\MeetingMinuteSegment;
use App\Models\System\AiConfig;
use Illuminate\Contracts\Pagination\LengthAwarePaginator;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;
class MeetingMinuteService
{
public function __construct(
private readonly GoogleCloudService $googleCloudService
) {}
public function getList(array $params): LengthAwarePaginator
{
$query = MeetingMinute::with('user:id,name')
->orderBy('meeting_date', 'desc')
->orderBy('id', 'desc');
if (! empty($params['search'])) {
$search = $params['search'];
$query->where(function ($q) use ($search) {
$q->where('title', 'like', "%{$search}%")
->orWhere('full_transcript', 'like', "%{$search}%");
});
}
if (! empty($params['date_from'])) {
$query->where('meeting_date', '>=', $params['date_from']);
}
if (! empty($params['date_to'])) {
$query->where('meeting_date', '<=', $params['date_to']);
}
if (! empty($params['status'])) {
$query->where('status', $params['status']);
}
$perPage = (int) ($params['per_page'] ?? 12);
return $query->paginate($perPage);
}
public function create(array $data): MeetingMinute
{
return MeetingMinute::create([
'tenant_id' => session('selected_tenant_id'),
'user_id' => Auth::id(),
'title' => $data['title'] ?? '무제 회의록',
'folder' => $data['folder'] ?? null,
'participants' => $data['participants'] ?? null,
'meeting_date' => $data['meeting_date'] ?? now()->toDateString(),
'meeting_time' => $data['meeting_time'] ?? now()->format('H:i'),
'status' => MeetingMinute::STATUS_DRAFT,
'stt_language' => $data['stt_language'] ?? 'ko-KR',
]);
}
public function update(MeetingMinute $meeting, array $data): MeetingMinute
{
$meeting->update(array_filter([
'title' => $data['title'] ?? null,
'folder' => array_key_exists('folder', $data) ? $data['folder'] : null,
'participants' => array_key_exists('participants', $data) ? $data['participants'] : null,
'meeting_date' => $data['meeting_date'] ?? null,
'meeting_time' => $data['meeting_time'] ?? null,
], fn ($v) => $v !== null));
return $meeting->fresh();
}
public function delete(MeetingMinute $meeting): bool
{
if ($meeting->audio_file_path) {
$this->googleCloudService->deleteFromStorage($meeting->audio_file_path);
}
return $meeting->delete();
}
public function saveSegments(MeetingMinute $meeting, array $segments): MeetingMinute
{
// 기존 세그먼트 삭제 후 새로 생성
$meeting->segments()->delete();
$fullTranscript = '';
foreach ($segments as $index => $segment) {
$text = $segment['text'] ?? '';
// 언더스코어 노이즈 제거
$text = trim(preg_replace('/\s{2,}/', ' ', str_replace('_', '', $text)));
MeetingMinuteSegment::create([
'meeting_minute_id' => $meeting->id,
'segment_order' => $index,
'speaker_name' => $segment['speaker_name'] ?? '화자 1',
'speaker_label' => $segment['speaker_label'] ?? null,
'text' => $text,
'start_time_ms' => $segment['start_time_ms'] ?? 0,
'end_time_ms' => $segment['end_time_ms'] ?? null,
'is_manual_speaker' => $segment['is_manual_speaker'] ?? true,
]);
$speakerName = $segment['speaker_name'] ?? '화자 1';
$fullTranscript .= "[{$speakerName}] {$text}\n";
}
$meeting->update([
'full_transcript' => trim($fullTranscript),
'status' => MeetingMinute::STATUS_DRAFT,
]);
return $meeting->fresh()->load('segments');
}
public function uploadAudio(MeetingMinute $meeting, $file, int $durationSeconds): bool
{
$extension = $file->getClientOriginalExtension() ?: 'webm';
$objectName = sprintf(
'meeting-minutes/%d/%d/%s.%s',
$meeting->tenant_id,
$meeting->id,
now()->format('YmdHis'),
$extension
);
$tempPath = $file->getRealPath();
$result = $this->googleCloudService->uploadToStorage($tempPath, $objectName);
if (! $result) {
Log::error('MeetingMinute: GCS 오디오 업로드 실패', [
'meeting_id' => $meeting->id,
]);
return false;
}
$meeting->update([
'audio_file_path' => $objectName,
'audio_gcs_uri' => $result['uri'],
'audio_file_size' => $result['size'] ?? $file->getSize(),
'duration_seconds' => $durationSeconds,
]);
AiTokenHelper::saveGcsStorageUsage('회의록-GCS저장', $result['size'] ?? $file->getSize());
return true;
}
public function generateSummary(MeetingMinute $meeting): ?array
{
if (empty($meeting->full_transcript)) {
return null;
}
$meeting->update(['status' => MeetingMinute::STATUS_PROCESSING]);
$config = AiConfig::getActiveGemini();
if (! $config) {
Log::warning('Gemini API 설정이 없습니다.');
$meeting->update(['status' => MeetingMinute::STATUS_FAILED]);
return null;
}
$prompt = $this->buildSummaryPrompt($meeting->full_transcript);
try {
$result = $this->callGeminiForSummary($config, $prompt);
if (! $result) {
$meeting->update(['status' => MeetingMinute::STATUS_FAILED]);
return null;
}
$meeting->update([
'summary' => $result['summary'] ?? null,
'decisions' => $result['decisions'] ?? [],
'action_items' => $result['action_items'] ?? [],
'status' => MeetingMinute::STATUS_COMPLETED,
]);
return $result;
} catch (\Exception $e) {
Log::error('MeetingMinute: Gemini 요약 실패', [
'meeting_id' => $meeting->id,
'error' => $e->getMessage(),
]);
$meeting->update(['status' => MeetingMinute::STATUS_FAILED]);
return null;
}
}
public function logSttUsage(int $durationSeconds): void
{
AiTokenHelper::saveSttUsage('회의록-음성인식', $durationSeconds);
}
/**
* 업로드된 오디오에 대해 자동 화자 분리(Speaker Diarization) 실행
* V2 + Chirp 2 우선 시도, 실패 시 V1 + latest_long 자동 폴백
*/
public function processDiarization(MeetingMinute $meeting, int $minSpeakers = 2, int $maxSpeakers = 6): ?array
{
if (empty($meeting->audio_gcs_uri)) {
return null;
}
$meeting->update(['status' => MeetingMinute::STATUS_PROCESSING]);
try {
$result = $this->googleCloudService->speechToTextWithDiarizationAuto(
$meeting->audio_gcs_uri,
$meeting->stt_language ?? 'ko-KR',
$minSpeakers,
$maxSpeakers,
$this->getDefaultPhraseHints()
);
if (! $result || empty($result['segments'])) {
Log::warning('MeetingMinute: 화자 분리 결과 없음', ['meeting_id' => $meeting->id]);
$meeting->update(['status' => MeetingMinute::STATUS_FAILED]);
return null;
}
$engine = $result['engine'] ?? 'v1';
$speakerCount = $result['speaker_count'] ?? 1;
$segments = $result['segments'];
Log::info('MeetingMinute: STT 화자 분리 완료', [
'meeting_id' => $meeting->id,
'engine' => $engine,
'segments' => count($segments),
'speaker_count' => $speakerCount,
]);
// Google 화자분리가 1명만 인식한 경우 → Gemini AI로 화자 재분배
if ($speakerCount <= 1 && count($segments) > 0 && $minSpeakers >= 2) {
$fullText = implode(' ', array_map(fn ($s) => $s['text'] ?? '', $segments));
$geminiSegments = $this->splitSpeakersWithGemini($fullText, $minSpeakers);
if ($geminiSegments && count($geminiSegments) > 1) {
$segments = $geminiSegments;
$speakerCount = count(array_unique(array_column($segments, 'speaker_label')));
$engine .= '+gemini';
Log::info('MeetingMinute: Gemini 화자 재분배 완료', [
'meeting_id' => $meeting->id,
'segments' => count($segments),
'speaker_count' => $speakerCount,
]);
}
}
// 기존 세그먼트 교체
$meeting->segments()->delete();
$fullTranscript = '';
foreach ($segments as $index => $segment) {
MeetingMinuteSegment::create([
'meeting_minute_id' => $meeting->id,
'segment_order' => $index,
'speaker_name' => $segment['speaker_name'] ?? '화자 1',
'speaker_label' => $segment['speaker_label'] ?? null,
'text' => $segment['text'] ?? '',
'start_time_ms' => $segment['start_time_ms'] ?? 0,
'end_time_ms' => $segment['end_time_ms'] ?? null,
'is_manual_speaker' => false,
]);
$speakerName = $segment['speaker_name'] ?? '화자 1';
$text = $segment['text'] ?? '';
$fullTranscript .= "[{$speakerName}] {$text}\n";
}
$meeting->update([
'full_transcript' => trim($fullTranscript),
'status' => MeetingMinute::STATUS_DRAFT,
]);
// STT 사용량 기록 (엔진 구분)
if ($meeting->duration_seconds > 0) {
$usageLabel = $engine === 'v2' ? '회의록-화자분리(Chirp2)' : '회의록-화자분리';
AiTokenHelper::saveSttUsage($usageLabel, $meeting->duration_seconds);
}
return [
'segments' => $segments,
'speaker_count' => $speakerCount,
'full_transcript' => trim($fullTranscript),
];
} catch (\Exception $e) {
Log::error('MeetingMinute: 화자 분리 실패', [
'meeting_id' => $meeting->id,
'error' => $e->getMessage(),
]);
$meeting->update(['status' => MeetingMinute::STATUS_FAILED]);
return null;
}
}
/**
* Speech Adaptation 도메인 용어 힌트
*/
private function getDefaultPhraseHints(): array
{
return [
'블라인드', '스크린', '롤스크린', '허니콤', '버티컬',
'원단', '바텀레일', '헤드레일', '브라켓',
'주일', '경동', '주일블라인드', '경동블라인드',
'수주', '발주', '납기', '출하', '재고', '원가', '단가',
'SAM', 'ERP', 'MES',
];
}
/**
* Gemini AI를 사용하여 단일 화자 텍스트를 대화 패턴으로 화자 분리
*/
private function splitSpeakersWithGemini(string $fullText, int $expectedSpeakers = 2): ?array
{
$config = AiConfig::getActiveGemini();
if (! $config) {
return null;
}
$prompt = <<<PROMPT
다음은 {$expectedSpeakers}명이 대화한 회의 녹취록인데, 음성 인식이 화자를 구분하지 못해서 한 덩어리로 들어왔습니다.
대화의 맥락, 호칭, 질문-답변 패턴, 화제 전환, 어투 변화를 분석하여 화자를 분리해주세요.
## 규칙:
- 반드시 JSON 배열만 응답 (다른 텍스트 없이)
- 각 항목은 {"speaker": 1 또는 2, "text": "해당 화자의 발화"}
- 원본 텍스트를 빠짐없이 분배 (추가/삭제 금지)
- 화자 전환이 불확실하면, 문맥상 다른 사람이 말하는 것 같은 지점에서 분리
- 최소 2명 이상의 화자로 분리
## 응답 형식:
[
{"speaker": 1, "text": "화자1의 발화 내용"},
{"speaker": 2, "text": "화자2의 발화 내용"},
{"speaker": 1, "text": "화자1의 다음 발화"}
]
## 녹취록:
{$fullText}
PROMPT;
try {
if ($config->isVertexAi()) {
$responseText = $this->callVertexAiApi($config, $prompt);
} else {
$responseText = $this->callGoogleAiStudioApi($config, $prompt);
}
if (! $responseText) {
return null;
}
// JSON 파싱
$cleaned = preg_replace('/```json\s*/', '', $responseText);
$cleaned = preg_replace('/```\s*/', '', $cleaned);
$cleaned = trim($cleaned);
$parsed = json_decode($cleaned, true);
if (json_last_error() !== JSON_ERROR_NONE || ! is_array($parsed) || count($parsed) < 2) {
Log::warning('MeetingMinute: Gemini 화자 분리 파싱 실패', [
'response' => mb_substr($responseText, 0, 500),
]);
return null;
}
// 세그먼트 형식으로 변환
$segments = [];
foreach ($parsed as $item) {
$speakerNum = $item['speaker'] ?? 1;
$text = trim($item['text'] ?? '');
if ($text === '') {
continue;
}
$segments[] = [
'speaker_name' => '화자 '.$speakerNum,
'speaker_label' => (string) $speakerNum,
'text' => $text,
'start_time_ms' => 0,
'end_time_ms' => null,
'is_manual_speaker' => false,
];
}
return count($segments) >= 2 ? $segments : null;
} catch (\Exception $e) {
Log::error('MeetingMinute: Gemini 화자 분리 예외', ['error' => $e->getMessage()]);
return null;
}
}
private function buildSummaryPrompt(string $transcript): string
{
return <<<PROMPT
다음은 회의 녹취록입니다. 이 내용을 분석하여 아래 JSON 형식으로 정확히 응답해주세요.
다른 텍스트 없이 JSON만 응답해주세요.
## 응답 형식 (JSON):
{
"summary": "회의 전체 요약 (3-5문장)",
"decisions": ["결정사항 1", "결정사항 2"],
"action_items": [
{"assignee": "담당자명", "task": "할일 내용", "deadline": "기한 또는 null"}
],
"keywords": ["핵심 키워드1", "핵심 키워드2"]
}
## 주의사항:
- summary는 회의의 핵심 내용을 간결하게 요약
- decisions는 회의에서 확정된 결정사항만 포함
- action_items의 assignee는 녹취록에서 파악 가능한 경우만 기입, 불명확하면 "미정"
- keywords는 3-5개의 핵심 키워드
## 녹취록:
{$transcript}
PROMPT;
}
private function callGeminiForSummary(AiConfig $config, string $prompt): ?array
{
if ($config->isVertexAi()) {
$responseText = $this->callVertexAiApi($config, $prompt);
} else {
$responseText = $this->callGoogleAiStudioApi($config, $prompt);
}
if (! $responseText) {
return null;
}
// JSON 파싱 (코드블록 제거)
$cleaned = preg_replace('/```json\s*/', '', $responseText);
$cleaned = preg_replace('/```\s*/', '', $cleaned);
$cleaned = trim($cleaned);
$parsed = json_decode($cleaned, true);
if (json_last_error() !== JSON_ERROR_NONE) {
Log::warning('MeetingMinute: Gemini JSON 파싱 실패', [
'response' => mb_substr($responseText, 0, 500),
]);
return [
'summary' => $responseText,
'decisions' => [],
'action_items' => [],
'keywords' => [],
];
}
return $parsed;
}
private function callGoogleAiStudioApi(AiConfig $config, string $prompt): ?string
{
$model = $config->model;
$apiKey = $config->api_key;
$baseUrl = $config->base_url ?? 'https://generativelanguage.googleapis.com/v1beta';
$url = "{$baseUrl}/models/{$model}:generateContent?key={$apiKey}";
return $this->callGeminiApi($url, $prompt, [
'Content-Type' => 'application/json',
], false);
}
private function callVertexAiApi(AiConfig $config, string $prompt): ?string
{
$model = $config->model;
$projectId = $config->getProjectId();
$region = $config->getRegion();
if (! $projectId) {
Log::error('Vertex AI 프로젝트 ID가 설정되지 않았습니다.');
return null;
}
$accessToken = $this->getAccessToken($config);
if (! $accessToken) {
Log::error('Google Cloud 인증 실패');
return null;
}
$url = "https://{$region}-aiplatform.googleapis.com/v1/projects/{$projectId}/locations/{$region}/publishers/google/models/{$model}:generateContent";
return $this->callGeminiApi($url, $prompt, [
'Authorization' => 'Bearer '.$accessToken,
'Content-Type' => 'application/json',
], true);
}
private function getAccessToken(AiConfig $config): ?string
{
$configuredPath = $config->getServiceAccountPath();
$possiblePaths = array_filter([
$configuredPath,
'/var/www/sales/apikey/google_service_account.json',
storage_path('app/google_service_account.json'),
]);
$serviceAccountPath = null;
foreach ($possiblePaths as $path) {
if ($path && file_exists($path)) {
$serviceAccountPath = $path;
break;
}
}
if (! $serviceAccountPath) {
Log::error('Service account file not found', ['tried_paths' => $possiblePaths]);
return null;
}
$serviceAccount = json_decode(file_get_contents($serviceAccountPath), true);
if (! $serviceAccount) {
return null;
}
$now = time();
$jwtHeader = $this->base64UrlEncode(json_encode(['alg' => 'RS256', 'typ' => 'JWT']));
$jwtClaim = $this->base64UrlEncode(json_encode([
'iss' => $serviceAccount['client_email'],
'scope' => 'https://www.googleapis.com/auth/cloud-platform',
'aud' => 'https://oauth2.googleapis.com/token',
'exp' => $now + 3600,
'iat' => $now,
]));
$privateKey = openssl_pkey_get_private($serviceAccount['private_key']);
if (! $privateKey) {
return null;
}
openssl_sign($jwtHeader.'.'.$jwtClaim, $signature, $privateKey, OPENSSL_ALGO_SHA256);
$jwt = $jwtHeader.'.'.$jwtClaim.'.'.$this->base64UrlEncode($signature);
try {
$response = Http::asForm()->post('https://oauth2.googleapis.com/token', [
'grant_type' => 'urn:ietf:params:oauth:grant-type:jwt-bearer',
'assertion' => $jwt,
]);
if ($response->successful()) {
return $response->json()['access_token'] ?? null;
}
return null;
} catch (\Exception $e) {
Log::error('OAuth token request exception', ['error' => $e->getMessage()]);
return null;
}
}
private function base64UrlEncode(string $data): string
{
return rtrim(strtr(base64_encode($data), '+/', '-_'), '=');
}
private function callGeminiApi(string $url, string $prompt, array $headers, bool $isVertexAi = false): ?string
{
$content = [
'parts' => [
['text' => $prompt],
],
];
if ($isVertexAi) {
$content['role'] = 'user';
}
try {
$response = Http::timeout(120)
->withHeaders($headers)
->post($url, [
'contents' => [$content],
'generationConfig' => [
'temperature' => 0.3,
'topK' => 40,
'topP' => 0.95,
'maxOutputTokens' => 4096,
],
]);
if (! $response->successful()) {
Log::error('MeetingMinute Gemini API error', [
'status' => $response->status(),
'body' => $response->body(),
]);
return null;
}
$result = $response->json();
AiTokenHelper::saveGeminiUsage($result, $result['modelVersion'] ?? 'gemini', '회의록-AI요약');
return $result['candidates'][0]['content']['parts'][0]['text'] ?? null;
} catch (\Exception $e) {
Log::error('MeetingMinute Gemini API 예외', ['error' => $e->getMessage()]);
return null;
}
}
}