118 lines
4.2 KiB
Markdown
118 lines
4.2 KiB
Markdown
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# Phone Recorder - Future Ideas / TODO
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## Questions to Address
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### Key Rotation
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- What happens when server keypair changes?
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- Current behavior: Old encrypted files can't be decrypted with new key
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- Options:
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1. Keep old private key archived for decrypting old files
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2. Sync all files before rotating keys
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3. Store key version/ID in encrypted file header
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### Manual Decryption
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- Document steps to decrypt files copied via USB from phone
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- Need: Python script using server's private key
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- Consider: CLI tool in server/ directory
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### No-Key Behavior
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- Current: Deletes recordings if no public key configured (security-first)
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- Alternatives to consider:
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1. Store unencrypted with warning (less secure)
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2. Queue recordings until key configured (could fill storage)
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3. Current behavior is probably correct for security model
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---
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## Possible Features
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### High Priority (if needed)
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- [ ] QR code for key import (avoid email/typing)
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- [ ] Server URL configuration in app UI (currently requires code change for non-defaults)
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- [ ] Manual sync trigger button
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- [ ] View sync history/status in app
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- [ ] **Display last successful sync time on phone** (e.g., "Last sync: 2 hours ago")
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- [ ] **Server status page** - HTML dashboard showing:
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- When phone last synced
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- Total recordings count
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- Recent uploads
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- Disk space usage
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- Could be at `/status` or `/dashboard`
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### Medium Priority
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- [ ] Configurable recording quality (bitrate, sample rate)
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- [ ] Configurable segment duration (currently 2 hours)
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- [ ] Delete synced files automatically (with configurable retention)
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- [ ] Server: Authentication for upload endpoint
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- [ ] Server: HTTPS with Let's Encrypt
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### Audio Analysis & Intelligence
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- [ ] **Speech detection bar** - Visual indicator showing when speech is detected vs silence
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- Display as additional bar in recording detail view alongside waveform
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- Data comes from batch processing script
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- [ ] **Sleeping detection** - Detect periods of sleep/silence for overnight recordings
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- Could help skip to interesting parts
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- Visual indicator in timeline
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- [ ] **Auto voice recognition / Speaker identification**
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- Identify who is talking (requires training on voice samples)
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- Label segments by speaker
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- Not text-based (transcripts are unreliable)
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- [ ] **Auto highlight generation**
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- Audio-based detection (not text search since transcripts are bad)
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- Example: detect phrase patterns like "Ok, note taken" acoustically
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- Auto-create highlights with tags like "note_taken"
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- Use audio fingerprinting or keyword spotting models
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### Viewer UX
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- [ ] **Background audio playback** - Keep playing current audio while browsing other recordings
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- Mini player that persists across views
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- Allows reviewing recordings list while listening
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- [ ] **Highlight duration** - Currently highlights mark only a point; consider adding end time/duration
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- [ ] **Auto-scroll timeline to recordings** - If recordings are only at end of day, auto-scroll so user doesn't have to scroll down to see them
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### Low Priority / Nice to Have
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- [ ] Multiple server destinations
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- [ ] Compression before encryption
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- [ ] Resume interrupted uploads
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- [ ] Server: Web UI to browse/play recordings
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- [ ] Server: Transcription integration
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### Infrastructure
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- [ ] Systemd service file for server
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- [ ] Docker container for server
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- [ ] NixOS module for server
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- [ ] Backup strategy for server private key
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---
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## Known Limitations
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1. **No streaming encryption**: Entire temp file must complete before encryption
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2. **No partial sync**: If upload fails, whole file retries
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3. **Single server**: Can only sync to one destination at a time
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4. **No authentication**: Anyone who can reach server can upload (relies on encryption for confidentiality)
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---
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## Testing Notes
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### Unit Tests (server/)
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```bash
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python test_crypto.py
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```
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### Integration Tests (server/)
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```bash
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# Start server first
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python main.py &
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python test_integration.py
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```
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### Manual Testing Checklist
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- [ ] Record short clip, verify .ogg.enc created
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- [ ] Verify temp file deleted after encryption
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- [ ] Check sync triggers after recording stops
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- [ ] Verify hash verification (corrupt a file, see it retry)
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- [ ] Test LAN detection with different subnets
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- [ ] Test sync mode transitions
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