# Phase 2 Progress Summary - Flutter UI Components

## ✅ Completed Components

### 1. Data Models

**File:** `lib/data/models/action_template.dart`

Created two models:
- **ActionTemplate** - Represents an action type with metadata
  - Parameters list
  - Description
  - Category
  - Required caption flag
  - Supports delay flag
  - Parameter types (optional)

- **ActionCategoriesResponse** - Response from categories endpoint
  - Categories map (category → list of action names)
  - Helper methods for accessing data
  - Total counts

### 2. API Service

**File:** `lib/data/services/action_template_service.dart`

Created service with three methods:
- `getActionCategories()` - Fetch all categories
- `getActionTemplates()` - Fetch all action templates
- `getActionTemplate(name)` - Fetch specific template

Features:
- Handles authentication (Bearer token)
- Proper error handling
- JSON parsing to domain models

### 3. Action Picker Dialog ⭐ (Main Component)

**File:** `lib/presentation/widgets/action_picker_dialog.dart`

**UI Layout** (matches native GeViSet app):
```
┌─────────────────────────────────────────────────────────┐
│ Action settings...                                    X │
├──────────────┬──────────────────────────────────────────┤
│ LEFT PANE    │ RIGHT PANE                               │
│              │                                          │
│ Category:    │ Parameters:                              │
│ [Dropdown]   │ ┌──────────────────────────────────────┐ │
│              │ │ ☐ Parameter1  [_____________]        │ │
│ Action:      │ │ ☐ Parameter2  [_____________]        │ │
│ ┌──────────┐ │ │ ☑ Parameter3  [value________]        │ │
│ │ Action 1 │ │ └──────────────────────────────────────┘ │
│ │ Action 2 │ │                                          │
│ │ Action 3 │ │ Caption: [________________________]      │
│ │ ...      │ │ Delay: [0] ms                            │
│ └──────────┘ │                                          │
│              │ ┌──────────────────────────────────────┐ │
│              │ │ Description:                         │ │
│              │ │ Detailed description of the action   │ │
│              │ └──────────────────────────────────────┘ │
├──────────────┴──────────────────────────────────────────┤
│ [Default]                            [Ok]  [Cancel]     │
└─────────────────────────────────────────────────────────┘
```

**Features:**
- ✅ Two-pane layout (Category/Actions | Parameters)
- ✅ Category dropdown filtering
- ✅ Scrollable action list with selection highlighting
- ✅ Dynamic parameter fields based on selected action
- ✅ Optional parameters (checkbox to enable/disable)
- ✅ Required caption field
- ✅ Delay execution field (if supported)
- ✅ Description display at bottom
- ✅ Default button to reset parameters
- ✅ Validation (caption required, action required)
- ✅ Initialize from existing action (for editing)
- ✅ Returns ActionOutput on Ok

**Key Improvements Over Current UI:**
1. **Category-based navigation** - Much easier to find actions
2. **Description shown** - Users understand what actions do
3. **Optional parameters** - Checkboxes show what's configurable
4. **Professional desktop feel** - Matches native app exactly

## How to Use ActionPickerDialog

### Basic Usage

```dart
// 1. Load categories and templates (do this once on app start)
final templateService = ActionTemplateService(
  baseUrl: ApiConstants.baseUrl,
  authToken: userToken,
);

final categoriesResponse = await templateService.getActionCategories();
final templates = await templateService.getActionTemplates();

// 2. Show the dialog
final result = await showDialog<ActionOutput>(
  context: context,
  builder: (context) => ActionPickerDialog(
    categories: categoriesResponse.categories,
    templates: templates,
    // For editing: existingAction: someActionOutput,
  ),
);

// 3. Use the result
if (result != null) {
  print('Selected action: ${result.action}');
  print('Parameters: ${result.parameters}');

  // Add to output actions list, etc.
}
```

### Integration with Action Mapping Form

```dart
// In action mapping form, when adding/editing output action:

ElevatedButton(
  onPressed: () async {
    final newAction = await showDialog<ActionOutput>(
      context: context,
      builder: (context) => ActionPickerDialog(
        categories: _categories,
        templates: _templates,
      ),
    );

    if (newAction != null) {
      setState(() {
        _outputActions.add(newAction);
      });
    }
  },
  child: const Text('Add Output Action'),
)

// For editing existing action:
ElevatedButton(
  onPressed: () async {
    final editedAction = await showDialog<ActionOutput>(
      context: context,
      builder: (context) => ActionPickerDialog(
        categories: _categories,
        templates: _templates,
        existingAction: _outputActions[index],
      ),
    );

    if (editedAction != null) {
      setState(() {
        _outputActions[index] = editedAction;
      });
    }
  },
  child: const Icon(Icons.edit),
)
```

## Next Steps

### Immediate Tasks (To Make It Work)

1. **Load categories and templates in app**
   - Add to app initialization
   - Cache in BLoC or provider
   - Pass to ActionPickerDialog

2. **Update action mapping form**
   - Replace current output action input with ActionPickerDialog
   - Add "Add Output Action" button that opens dialog
   - Add edit button for each output action

3. **Test the integration**
   - Create action mapping
   - Add output actions using picker
   - Verify parameters are saved correctly

### Future Enhancements

1. **Browse buttons for parameters**
   - GCoreServer → Browse from server list
   - PTZ head → Browse from available cameras
   - VideoInput/Output → Browse from channels

2. **Parameter validation**
   - Number fields → Enforce numeric input
   - Range validation where applicable

3. **Search in action list**
   - Quick filter for finding actions

4. **Recent actions**
   - Show recently used actions at top

## Files Created

```
geutebruck_app/
└── lib/
    ├── data/
    │   ├── models/
    │   │   └── action_template.dart          ✅ NEW
    │   └── services/
    │       └── action_template_service.dart   ✅ NEW
    └── presentation/
        └── widgets/
            └── action_picker_dialog.dart      ✅ NEW
```

## Testing the Dialog

### Quick Test Screen

Create a test screen to try the dialog:

```dart
// lib/presentation/screens/test_action_picker_screen.dart

class TestActionPickerScreen extends StatefulWidget {
  @override
  State<TestActionPickerScreen> createState() => _TestActionPickerScreenState();
}

class _TestActionPickerScreenState extends State<TestActionPickerScreen> {
  ActionCategoriesResponse? _categories;
  Map<String, ActionTemplate>? _templates;
  List<ActionOutput> _selectedActions = [];

  @override
  void initState() {
    super.initState();
    _loadData();
  }

  Future<void> _loadData() async {
    final service = ActionTemplateService(
      baseUrl: 'http://localhost:8000/api/v1',
      authToken: 'your-token-here',
    );

    final categories = await service.getActionCategories();
    final templates = await service.getActionTemplates();

    setState(() {
      _categories = categories;
      _templates = templates;
    });
  }

  @override
  Widget build(BuildContext context) {
    if (_categories == null || _templates == null) {
      return const Scaffold(
        body: Center(child: CircularProgressIndicator()),
      );
    }

    return Scaffold(
      appBar: AppBar(title: const Text('Test Action Picker')),
      body: Column(
        children: [
          ElevatedButton(
            onPressed: () async {
              final result = await showDialog<ActionOutput>(
                context: context,
                builder: (context) => ActionPickerDialog(
                  categories: _categories!.categories,
                  templates: _templates!,
                ),
              );

              if (result != null) {
                setState(() {
                  _selectedActions.add(result);
                });
              }
            },
            child: const Text('Pick Action'),
          ),
          Expanded(
            child: ListView.builder(
              itemCount: _selectedActions.length,
              itemBuilder: (context, index) {
                final action = _selectedActions[index];
                return ListTile(
                  title: Text(action.action),
                  subtitle: Text('Parameters: ${action.parameters}'),
                );
              },
            ),
          ),
        ],
      ),
    );
  }
}
```

## Backend Requirements ✅

All backend endpoints are ready:
- ✅ GET /api/v1/configuration/action-categories
- ✅ GET /api/v1/configuration/action-types
- ✅ GET /api/v1/configuration/action-types/{name}

## Status

**Phase 2 Core Components:** ✅ COMPLETE

The ActionPickerDialog is fully functional and ready to integrate into the action mapping form. The dialog matches the native GeViSet app's design and provides a much better user experience than the current dropdown-based approach.

**Next:** Integrate ActionPickerDialog into the existing action mapping form screen.