Backend:
- Added artist, album, comment columns to clips DB (migration in init_db)
- New update_metadata() function in database.py
- New PATCH /api/clips/{id}/metadata endpoint
- Updated download endpoint to write ID3 tags using mutagen:
* TIT2 (Title) — from clip title
* TPE1 (Artist) — from clip artist
* TALB (Album) — from clip album
* COMM (Comment) — from clip comment
* TBPM (BPM) — from detected BPM
* TKEY (Key) — from detected key
* TIT1 (Content Group) — prompt for reference
- Added mutagen==1.47.0 to requirements.txt
- Creates temporary copy with tags, original file untouched
Frontend:
- Clip interface updated with artist, album, comment fields
- New MetadataField component in DetailPanel:
* Inline editing with click-to-edit
* Input field with lyria-accent border
* Enter to save, Escape to cancel, blur to save
* Pencil icon on hover
* Shows placeholder when empty
- App.tsx: handleUpdateMetadata() function, passed to DetailPanel
- Updates state across clips, currentClip, selectedClip
Architecture KB and Tasks KB updated.
Backend:
- Added prompt_structure JSON column to clips DB (migration in init_db)
- Updated GenerateRequest model with optional prompt_structure dict
- build_prompt() method combines structured fields into single prompt:
'Generate a track with the following elements:\n\n**Style:** [style]\n...'
- create_clip() accepts and stores prompt_structure JSON
- get_clips()/get_clip() parse prompt_structure back to dict
Frontend:
- New StructuredPromptEditor component with 8 collapsible fields:
Style, Timbre, Structure, Mood, Tempo, Instrumentation, Effects, Additional
- Fields show filled/empty state with colored dots
- Expand/collapse individual fields
- 'Expand All' button
- Counter: 'X of 8 fields filled'
- Generator component updated with Basic/Advanced mode toggle (Pro only)
- Basic: single textarea (works for both models)
- Advanced: StructuredPromptEditor (Pro only)
- Mode resets to Basic when switching to Clip Preview
- DetailPanel shows structured prompt breakdown when present
- Each filled field shown in its own labeled box
- Style, Timbre, Structure, Mood, Tempo, Instrumentation, Effects, Additional
- Clip interface updated with prompt_structure field across all components
Architecture KB and Tasks KB updated.
Backend:
- New image_gen.py module with Gemini image generation client
- generate_artwork(): generates PNG from text prompt using Google GenAI
- get_image_gen_config(): loads config from .env (model, API key, safety)
- get_available_models(): returns list of Gemini image models
- Safety settings: harassment, hate_speech, sexually_explicit, dangerous
Configurable via IMAGE_GEN_SAFETY_* env vars (default: BLOCK_ONLY_HIGH)
- New endpoints:
* POST /api/clips/{id}/generate-artwork — generates and saves artwork
* GET /api/image-gen/models — lists available models
* GET /api/image-gen/config — returns safe config (API key masked)
- Default model: gemini-3.1-flash-image-preview
- Fallback API key: LYRIA_API_KEY if IMAGE_GEN_API_KEY not set
- Added google-genai==1.0.0 to requirements.txt
Frontend:
- New ArtworkGenerationModal component for prompt input
- Textarea with placeholder, loading spinner during generation
- Styled consistent with SettingsModal (backdrop blur, rounded, dark)
- SettingsModal expanded with Image Generation section (collapsible)
- Shows current model, API key status, safety filter levels
- Read-only display — values configured via .env
- DetailPanel: 'Generate' button added next to Upload/Change
- Passes onGenerateArtwork prop to App.tsx
- App.tsx: handles artwork generation flow, updates state on success
Architecture KB and Tasks KB updated.
rin.kagamine