105 lines
5.5 KiB
PHP
105 lines
5.5 KiB
PHP
<?php
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declare(strict_types=1);
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namespace app\adminapi\service;
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use app\common\model\tcm\CallRecord;
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use DomainException;
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use think\facade\Db;
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/** Persist a locally recovered transcript without reopening the realtime session. */
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final class LocalAudioTranscriptRecovery
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{
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public static function save(array $params): array
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{
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foreach (['diagnosis_id', 'call_record_id', 'admin_id'] as $key) {
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$value = $params[$key] ?? null;
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if ((!is_int($value) && !is_string($value))
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|| filter_var($value, FILTER_VALIDATE_INT, ['options' => ['min_range' => 1]]) === false) {
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throw new DomainException('录音补转写身份参数无效');
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}
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}
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foreach (['recovery_id', 'expected_session_id', 'expected_status', 'audio_url', 'transcript_text'] as $key) {
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if (!isset($params[$key]) || !is_string($params[$key])) {
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throw new DomainException('录音补转写参数无效');
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}
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}
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if (!preg_match('/\Aaudio-[a-f0-9]{32}\z/D', $params['recovery_id'])
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|| mb_strlen($params['expected_session_id']) > 128
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|| !in_array($params['expected_status'], ['', 'pending', 'running', 'partial', 'failed', 'completed'], true)
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|| trim($params['audio_url']) === '' || strlen($params['audio_url']) > 8192) {
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throw new DomainException('录音补转写会话参数无效');
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}
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$text = trim($params['transcript_text']);
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if ($text === '' || mb_strlen($params['transcript_text']) > 100000) {
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throw new DomainException('录音补转写文字必须为1到100000个字符');
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}
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return Db::transaction(static function () use ($params, $text): array {
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// The realtime upsert/finish endpoints lock the same row, so a late
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// old-session write cannot run after this session switch succeeds.
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$record = CallRecord::where('id', (int) $params['call_record_id'])
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->where('diagnosis_id', (int) $params['diagnosis_id'])
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->where('caller_id', (int) $params['admin_id'])
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->where('caller_type', 'doctor')->lock(true)->find();
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if (!$record) { throw new DomainException('通话记录不存在或无权操作'); }
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if ((int) $record['status'] !== 2) { throw new DomainException('通话结束后才能补转写'); }
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$urls = json_decode((string) ($record['local_audio_urls'] ?? ''), true);
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if ((int) ($record['local_audio_status'] ?? 0) !== 2 || !is_array($urls)
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|| !in_array($params['audio_url'], $urls, true)) {
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throw new DomainException('录音尚未上传或不属于当前通话');
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}
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$result = ['call_record_id' => (int) $record['id'], 'transcription_status' => 'completed'];
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$session = (string) ($record['transcription_session_id'] ?? '');
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$status = (string) ($record['transcription_status'] ?? '');
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if ($status === 'completed' && trim((string) ($record['transcript_text'] ?? '')) !== '') {
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// Lost response retries succeed even with the original CAS values;
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// a different completed session always wins without being changed.
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return $session === $params['recovery_id']
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? $result + ['saved' => true]
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: $result + ['saved' => false, 'already_complete' => true];
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}
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if ($session !== $params['expected_session_id'] || $status !== $params['expected_status']) {
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throw new DomainException('通话转写状态已变化，请刷新后重试');
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}
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$now = time();
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$segments = [];
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$lines = [];
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// Recognition supplied no diarization or alignment. Do not invent
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// doctor/patient attribution or timestamps; preserve source order by id.
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for ($offset = 0, $index = 0, $length = mb_strlen($text); $offset < $length; $offset += 4000, $index++) {
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$part = mb_substr($text, $offset, 4000);
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$segments[] = [
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'call_record_id' => (int) $record['id'],
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'transcription_session_id' => $params['recovery_id'],
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'segment_id' => $params['recovery_id'] . '-' . $index,
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'speaker_user_id' => '', 'speaker_role' => 'unknown', 'timestamp_ms' => 0,
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'text' => $part, 'create_time' => $now, 'update_time' => $now,
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];
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$lines[] = '未知说话人：' . $part;
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}
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// Keep all old-session segments for audit; the current session is the
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// only one consumed by transcript readers and clinical context builders.
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Db::name('tcm_call_transcript_segment')->insertAll($segments);
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$record->save([
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'transcription_session_id' => $params['recovery_id'],
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'transcription_status' => 'completed',
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'transcription_segment_count' => count($segments),
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'transcript_text' => implode("\n", $lines),
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'transcription_started_at' => $now, 'transcription_finished_at' => $now,
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'update_time' => $now,
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]);
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return $result + ['saved' => true];
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});
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}
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public static function completionStatus(string $requested, int $actual, int $expected, string $text): string
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{
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if ($requested !== 'completed') { return $requested; }
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if ($actual === 0 || trim($text) === '') { return 'failed'; }
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return $actual < $expected ? 'partial' : 'completed';
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}
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}
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