# Image Studio Editing Feature - Implementation Status

**Status**: 🚧 **IN PROGRESS** - Foundation Complete, First Model Integrated  
**Started**: Current Session  
**Current Phase**: Steps 1-4 Complete, Ready for More Models

---

## ✅ Completed (Steps 1-2)

### **Step 1: Protocol & Options** ✅

**File**: `backend/services/llm_providers/image_generation/base.py`

**Added**:
- ✅ `ImageEditOptions` dataclass - Complete with all fields
- ✅ `ImageEditProvider` protocol - Follows same pattern as `ImageGenerationProvider`
- ✅ `to_dict()` method - Converts options to API-friendly format

**Status**: ✅ Complete and tested

---

### **Step 2: WaveSpeedEditProvider Structure** ✅

**File**: `backend/services/llm_providers/image_generation/wavespeed_edit_provider.py`

**Created**:
- ✅ Provider class structure following `WaveSpeedImageProvider` pattern
- ✅ `SUPPORTED_MODELS` dict (empty, ready for 14 models)
- ✅ Validation methods (`_validate_options()`)
- ✅ Helper methods (`get_available_models()`, `get_models_by_tier()`, `get_models_by_operation()`)
- ✅ Placeholder for API call method (`_call_wavespeed_edit_api()`)

**Status**: ✅ Structure complete, API implemented
- ✅ `SUPPORTED_MODELS` dict structure ready
- ✅ API call method (`_call_wavespeed_edit_api()`) implemented
- ✅ Helper methods (`_extract_image_url()`, `_download_image()`) added
- ✅ 5 models added: `qwen-edit`, `qwen-edit-plus`, `nano-banana-pro-edit-ultra`, `seedream-v4.5-edit`, `flux-kontext-pro` (waiting for remaining 9 model docs)
- ✅ Model-specific parameter handling: Supports different API formats (size vs aspect_ratio/resolution, image vs images)
- ✅ Verified against official WaveSpeed API documentation
- ✅ Qwen Image Edit: Verified against https://wavespeed.ai/docs/docs-api/wavespeed-ai/qwen-image-edit

---

## 📋 Ready for Model Integration

### **What I Need from You**

1. **Model Documentation** for each of the 14 editing models:
   - Model ID (e.g., "qwen-edit")
   - Model path/endpoint (e.g., "wavespeed-ai/qwen-image/edit")
   - Display name
   - Cost per edit
   - Max resolution
   - Supported operations/capabilities
   - Any model-specific parameters

2. **WaveSpeed API Documentation** for editing:
   - API endpoint structure
   - Request format
   - Response format
   - Authentication method
   - Any special requirements

### **Model Structure Example**

**Qwen Image Edit Plus** (✅ Added):
```python
"qwen-edit-plus": {
    "model_path": "wavespeed-ai/qwen-image/edit-plus",
    "name": "Qwen Image Edit Plus",
    "description": "20B MMDiT image editor with multi-image editing...",
    "cost": 0.02,
    "max_resolution": (1536, 1536),
    "capabilities": ["general_edit", "style_transfer", "text_edit", "multi_image"],
    "tier": "budget",
    "supports_multi_image": True,  # Up to 3 reference images
    "supports_controlnet": True,
    "languages": ["en", "zh"],
}
```

**Template for Remaining Models**:
```python
"model-id": {
    "model_path": "wavespeed-ai/model-path",
    "name": "Model Display Name",
    "description": "Model description",
    "cost": 0.02,  # Cost per edit
    "max_resolution": (2048, 2048),
    "capabilities": ["general_edit", "inpaint", "outpaint"],
    "tier": "budget",  # "budget", "mid", "premium"
    # Model-specific parameters
}
```

---

## 🔄 Next Steps (After Model Docs)

### **Step 3: Add Models** (In Progress - 2/14 Complete)
- ✅ **Qwen Image Edit Plus** added (from provided docs)
- ✅ **Google Nano Banana Pro Edit Ultra** added (from provided docs)
- ⏳ **12 models remaining** - waiting for model documentation
- Model-specific parameter handling: Supports both `size` (Qwen) and `aspect_ratio`/`resolution` (Nano Banana) formats

### **Step 4: Implement API Call** ✅ **COMPLETE**
- ✅ `_call_wavespeed_edit_api()` method implemented
- ✅ Follows same pattern as `ImageGenerator.generate_image()`
- ✅ Handles sync/async modes
- ✅ Polling support via `WaveSpeedClient.poll_until_complete()`
- ✅ Helper methods: `_extract_image_url()`, `_download_image()`
- ✅ Tested with Qwen Image Edit Plus API structure

### **Step 5: Unified Entry Point** ✅ **COMPLETE**
- ✅ `generate_image_edit()` added to `main_image_generation.py`
- ✅ Reuses Phase 1 helpers (`_validate_image_operation()`, `_track_image_operation_usage()`)
- ✅ Provider selection helper (`_get_edit_provider()`) added
- ✅ Follows same pattern as `generate_image()`
- ✅ Error handling and logging consistent

### **Step 6: Service Integration** ✅ **COMPLETE**
- ✅ Refactored `_handle_general_edit()` to use unified entry point for WaveSpeed models
- ✅ Added model detection logic (WaveSpeed vs HuggingFace)
- ✅ Maintained backward compatibility with Stability AI and HuggingFace
- ✅ API endpoint already supports `model` parameter (no changes needed)

### **Step 7: Backend APIs** ✅ **COMPLETE**
- ✅ `GET /api/image-studio/edit/models` - List available models with metadata
- ✅ `POST /api/image-studio/edit/recommend` - Get smart recommendations
- ✅ Auto-detection logic implemented in `_handle_general_edit()`
- ✅ Recommendation algorithm with scoring (cost, quality, user tier, resolution)
- ✅ Model metadata methods (`get_available_models()`, `recommend_model()`)

### **Step 8: Frontend Integration** ⏸️ **PENDING**
- ⏸️ Create `ModelSelector` component
- ⏸️ Create `ModelInfoCard` component
- ⏸️ Create `ModelComparisonDialog` component
- ⏸️ Integrate into `EditStudio.tsx`
- ⏸️ Add API calls to `useImageStudio` hook
- ⏸️ Display cost estimates and model information

---

## 📁 Files Created/Modified

### **New Files**
1. ✅ `backend/services/llm_providers/image_generation/wavespeed_edit_provider.py` - Provider structure

### **Modified Files**
1. ✅ `backend/services/llm_providers/image_generation/base.py` - Added protocol & options
2. ✅ `backend/services/llm_providers/image_generation/__init__.py` - Exported new types
3. ✅ `backend/services/llm_providers/main_image_generation.py` - Added `generate_image_edit()` function
4. ✅ `backend/services/image_studio/edit_service.py` - Added model listing, recommendations, auto-detection
5. ✅ `backend/services/image_studio/studio_manager.py` - Added model API methods
6. ✅ `backend/routers/image_studio.py` - Added `/edit/models` and `/edit/recommend` endpoints

---

## 🎯 Current Status Summary

| Step | Status | Notes |
|------|--------|-------|
| Step 1: Protocol & Options | ✅ Complete | Ready to use |
| Step 2: Provider Structure | ✅ Complete | Structure ready |
| Step 3: Add Models | 🚧 In Progress | 5 of 14 models added (Qwen Edit, Qwen Edit Plus, Nano Banana Pro Edit Ultra, Seedream V4.5 Edit, FLUX Kontext Pro) |
| Step 4: API Implementation | ✅ Complete | API call method implemented |
| Step 5: Unified Entry | ✅ Complete | Ready to use |
| Step 6: Service Integration | ✅ Complete | WaveSpeed models integrated, backward compatible |
| Step 7: Frontend | ⏸️ Pending | Add model selector UI |

---

## 📝 Notes

1. **Reusability**: All code follows established patterns from Phase 1
2. **Placeholder API Call**: `_call_wavespeed_edit_api()` is a placeholder - will be implemented once we have API docs
3. **Model Registry**: Structure ready, just needs model data
4. **Backward Compatibility**: Will be maintained when integrating with `EditStudioService`

---

*Foundation complete - Ready for model documentation*
