import { Router } from 'express';
import multer from 'multer';
import { asyncWrap } from '../errors.js';
import { requireOwner } from '../cap.js';
import * as whisper from '../../voice/whisper.js';
export const router = Router();

// In-memory upload; clips are small voice notes. 25 MB ceiling.
const upload = multer({ storage: multer.memoryStorage(), limits: { fileSize: 25 * 1024 * 1024 } });

// POST /api/voice/transcribe — owner-only. multipart field `audio`. Returns { text }.
// (Phase 2b will optionally persist the clip + transcript when keepClips is on.)
router.post('/transcribe', requireOwner, upload.single('audio'), asyncWrap(async (req, res) => {
  if (!req.file || !req.file.buffer?.length) {
    return res.status(400).json({ error: { code: 'no_audio', message: 'no audio supplied' } });
  }
  try {
    const r = await whisper.transcribe(
      req.file.buffer, req.file.originalname || 'clip.webm', req.file.mimetype || 'audio/webm');
    res.json({ text: r.text, duration: r.duration ?? null });
  } catch {
    res.status(503).json({ error: { code: 'stt_unavailable', message: 'transcription service unavailable' } });
  }
}));