# Supervertaler Qt v1.0.0 - Phase 3 Implementation Complete

## Phase 3: Batch Translation

### ✅ Completed Features

#### 1. **Batch Translation Dialog**
- **Access**: Edit → Translate Multiple Segments (Ctrl+Shift+T) or 🚀 Batch Translate button
- **Smart Detection**: Automatically finds all untranslated segments
- **Confirmation Dialog**: Shows count and warns about API usage
- **Live Progress**: Real-time updates during translation

#### 2. **Progress Dialog Features**

**Display Elements**:
- 🚀 Header with total segment count
- Provider and model information
- Progress bar (0-100%)
- Current segment being translated (with preview)
- Live statistics: Translated | Failed | Remaining
- Close button (enabled when complete)

**Real-time Updates**:
- Shows current segment number and text preview
- Updates progress bar after each segment
- Tracks success/failure counts
- Logs all translations to console

#### 3. **Translation Process**

**Workflow**:
1. Scans project for untranslated segments (empty target)
2. Shows confirmation with count and API warning
3. Opens progress dialog
4. Translates segments sequentially
5. Updates grid in real-time
6. Adds each translation to TM database
7. Shows completion summary
8. Marks project as modified

**Error Handling**:
- Individual segment failures don't stop batch
- Tracks and reports failed segments
- Continues with remaining segments
- TM errors don't fail translation

#### 4. **User Interface Integration**

**Menu Integration**:
```
Edit Menu:
  ├─ Translate Segment (Ctrl+T)
  └─ Translate Multiple Segments... (Ctrl+Shift+T)  ← NEW
```

**Toolbar Integration**:
```
[🤖 Translate (Ctrl+T)] [🚀 Batch Translate]  ← NEW
```

### 🎯 User Experience

#### Before Phase 3:
```
❌ Translate one segment at a time
❌ Manually select each segment
❌ No progress indication
❌ No batch statistics
```

#### After Phase 3:
```
✅ Translate all untranslated segments at once
✅ Live progress with statistics
✅ Real-time grid updates
✅ Automatic TM population
✅ Error recovery (continues on failures)
```

### 📋 Technical Implementation

#### New Function: `translate_batch()`

**Key Features**:
- Finds untranslated segments: `if not seg.target or seg.target.strip() == ""`
- Uses same LLM client as single translation
- Progress dialog with QProgressBar
- Real-time UI updates with `QApplication.processEvents()`
- Batch TM updates
- Comprehensive error handling

**Statistics Tracking**:
```python
translated_count = 0  # Successful translations
failed_count = 0      # Failed translations
remaining = total - (current + 1)  # Remaining segments
```

**Progress Dialog**:
- Modal dialog (blocks main window)
- Live updates during translation
- Can't close until complete (button disabled)
- Shows provider/model being used

### 🔧 Files Modified

**Supervertaler_Qt_v1.0.0.py**:
- Line ~335: Added menu item with Ctrl+Shift+T
- Line ~410: Added batch translate button to toolbar
- Lines ~2805-3000: New `translate_batch()` function (~195 lines)

### 📊 Batch Translation Flow

```
┌─────────────────────────────────────┐
│  User clicks "Batch Translate"     │
└──────────────┬──────────────────────┘
               │
               ▼
┌─────────────────────────────────────┐
│  Scan for untranslated segments    │
│  Count: X segments found            │
└──────────────┬──────────────────────┘
               │
               ▼
┌─────────────────────────────────────┐
│  Show confirmation dialog           │
│  "Translate X segments?"            │
│  Warning about API usage            │
└──────────────┬──────────────────────┘
               │ [User clicks Yes]
               ▼
┌─────────────────────────────────────┐
│  Load API keys & settings           │
│  Validate provider configuration    │
└──────────────┬──────────────────────┘
               │
               ▼
┌─────────────────────────────────────┐
│  Open Progress Dialog               │
│  Show: Provider, Model, Progress    │
└──────────────┬──────────────────────┘
               │
       ┌───────┴───────┐
       │  For each     │
       │  segment:     │
       └───────┬───────┘
               │
               ▼
   ┌───────────────────────────┐
   │  1. Show segment preview  │
   │  2. Call LLM API          │
   │  3. Get translation       │
   │  4. Update grid cell      │
   │  5. Update status icon    │
   │  6. Add to TM database    │
   │  7. Update statistics     │
   │  8. Update progress bar   │
   └───────────┬───────────────┘
               │
       [Loop until done]
               │
               ▼
┌─────────────────────────────────────┐
│  Show completion summary            │
│  "Translated: X | Failed: Y"        │
│  Enable Close button                │
└──────────────┬──────────────────────┘
               │
               ▼
┌─────────────────────────────────────┐
│  User closes dialog                 │
│  Project marked as modified         │
└─────────────────────────────────────┘
```

### ✅ Testing Checklist

- [x] Menu item appears in Edit menu
- [x] Ctrl+Shift+T shortcut works
- [x] Batch translate button in toolbar
- [x] Finds untranslated segments
- [x] Shows confirmation dialog
- [x] Progress dialog opens
- [x] Progress updates in real-time
- [x] Grid updates during translation
- [x] Statistics update correctly
- [x] TM entries added
- [x] Error handling works
- [x] Completion message shown
- [x] Project marked as modified

### 🚀 Usage Instructions

#### How to Batch Translate

1. **Open a project** with untranslated segments
2. **Click 🚀 Batch Translate** (or Edit → Translate Multiple Segments)
3. **Confirm** the number of segments to translate
4. **Watch progress** in the dialog
5. **Review results** in the completion summary
6. **Click Close** when done

#### What Happens

- ✅ All untranslated segments processed
- ✅ Grid updates in real-time as you watch
- ✅ Each translation added to TM automatically
- ✅ Status icons change to 📝 (draft)
- ✅ Project marked as modified (*)
- ✅ Failed segments logged but don't stop batch

### 📊 Performance Notes

**Speed**:
- Depends on LLM provider API speed
- Typically 1-3 seconds per segment
- 100 segments ≈ 2-5 minutes
- Progress updates keep you informed

**API Usage**:
- Each segment = 1 API call
- Uses your configured provider/model
- Consumes API credits based on token count
- Warning shown before starting

**Memory**:
- Processes segments sequentially (not parallel)
- Updates UI after each segment
- Minimal memory footprint
- Safe for large projects

### 🔐 Safety Features

1. **Confirmation Dialog**: Warns about API usage before starting
2. **Error Recovery**: Failed segments don't stop the batch
3. **Progress Visibility**: Always know what's happening
4. **Manual Close**: Can't accidentally close mid-translation
5. **Logging**: All operations logged for debugging

### 📝 Future Enhancements (Phase 4+)

Potential future improvements:
- ⏸️ Pause/Resume capability
- ❌ Cancel button during translation
- 🎯 Translate selection (custom range)
- 📊 Post-translation quality review
- 🔄 Retry failed segments
- ⚡ Parallel translation (careful with rate limits)
- 💾 Auto-save every N segments

---

**Completion Date**: 2025-01-27  
**Status**: ✅ COMPLETE - Ready for Production  
**Next**: Phase 4 - Custom Prompts & Advanced Features
