# WordPress DAM Plugin - Integrations Implementation Summary

**Date:** 2026-01-20  
**Status:** PHP Implementation Complete

## Overview

Created three critical integration components for the WordPress DAM plugin:

1. Settings Page Template
2. YooTheme Pro Integration
3. Advanced Custom Fields (ACF) Integration

## Files Created

### 1. Settings Page Template
**File:** `admin/settings.php` (220 lines)

**Purpose:** Complete admin settings interface for DAM configuration

**Features:**
- HTML form with WordPress admin styling
- Three configuration fields:
  - API URL (required)
  - API Key (required, with show/hide toggle)
  - CDN URL (optional)
- Form submission with nonce verification
- AJAX connection test button
- Real-time status indicators (testing/success/error)
- Sidebar with connection status and quick start info
- Inline CSS following WordPress design system
- jQuery-based interactivity

**Integration:** Loaded via `Plugin::render_settings_page()` method

---

### 2. YooTheme Pro Integration
**File:** `integrations/class-dam-yootheme.php` (440 lines)

**Purpose:** Full YooTheme Pro builder integration with Source providers and custom elements

**Components:**

#### GraphQL Sources
- `DamAsset` type with full metadata schema
- `DamAssetMetadata` type for asset properties
- Query resolvers:
  - `damAsset(id: String!)` - Single asset query
  - `damAssets(search, tags, limit, offset, mimeType)` - Multiple assets query

#### Custom Elements

**DAM Image Element** (`dam_image`)
- Asset picker field
- Width/height controls
- Crop mode selection (cover/contain/fill)
- Link field support
- Server-side rendering with CDN URL
- Image transformation parameters

**DAM Gallery Element** (`dam_gallery`)
- Multiple asset selection
- Column configuration (1-6)
- Gap settings (small/default/medium/large)
- Thumbnail width control
- Lightbox support
- Responsive grid layout

#### Features
- Dynamic content bindings
- Asset data formatting for YooTheme schema
- CDN URL integration
- Proper escaping and i18n
- Builder asset enqueuing

**Integration:** Conditionally loaded if `YOOTHEME_VERSION` is defined

---

### 3. ACF Integration
**File:** `integrations/class-dam-acf.php` (409 lines)

**Purpose:** Custom ACF field type for DAM asset selection

**Field Type:** `dam_asset`

**Field Settings:**
- **Return Format:**
  - Object - Full asset data with metadata
  - URL - Direct CDN URL string
  - ID - Asset ID only
- **Multiple Selection:** Toggle for single/multiple assets
- **MIME Type Filter:** Restrict allowed file types

**UI Components:**

#### Single Selection Mode
- Asset preview with thumbnail (images) or file icon
- Asset metadata display (title, filename, size)
- Action buttons: Change, Remove
- Select button when no asset chosen

#### Multiple Selection Mode
- Sortable asset list
- Individual asset previews
- Remove button per asset
- Add Asset button for new selections

**Features:**
- Value formatting based on return format
- Field validation with MIME type checking
- Integration with DAM Client
- CDN URL support for thumbnails
- Proper ACF coding standards
- Admin scripts/styles enqueuing

**Integration:** Conditionally loaded if `ACF` class exists

---

## Architecture

### Integration Flow

```
WordPress Admin
    ├── Settings Page (admin/settings.php)
    │   └── Uses: DAM_Admin class for connection testing
    │
    ├── YooTheme Builder (if installed)
    │   └── DAM_YooTheme class
    │       ├── GraphQL Sources (DamAsset, DamAssets)
    │       ├── Custom Elements (dam_image, dam_gallery)
    │       └── Uses: DAM_Client for asset data
    │
    └── ACF Field Editor (if installed)
        └── DAM_ACF class
            ├── ACF_Field_DAM_Asset field type
            └── Uses: DAM_Client for asset data
```

### Shared Dependencies

All integrations use:
- `DAM_Client` - For API communication
- `dam_settings` - For API URL, API Key, CDN URL
- `window.damPickerBridge` - For asset selection UI (JS to be implemented)
- REST API endpoints - For AJAX operations

---

## Code Statistics

| File | Lines | Purpose |
|------|-------|---------|
| `admin/settings.php` | 220 | Settings page UI |
| `class-dam-yootheme.php` | 440 | YooTheme integration |
| `class-dam-acf.php` | 409 | ACF field type |
| **Total** | **1,069** | **PHP implementation** |

---

## Implementation Status

### ✅ Completed (PHP)
- Settings page template with full UI
- YooTheme GraphQL sources and resolvers
- YooTheme custom elements (dam_image, dam_gallery)
- ACF custom field type (dam_asset)
- Field settings and configuration
- Value formatting and validation
- Server-side rendering

### 🔄 Pending (JavaScript)
- YooTheme field type JS (`assets/js/yootheme-fields.js`)
- ACF field UI JS (`assets/js/acf-field.js`)
- ACF field CSS (`assets/css/acf-field.css`)
- Integration with `window.damPickerBridge`

### 🔄 Pending (Testing)
- End-to-end testing with YooTheme Pro
- End-to-end testing with ACF
- Connection test verification
- Asset selection workflow testing

---

## Usage Examples

### YooTheme Builder

```php
// Query single asset in YooTheme
query {
  damAsset(id: "abc123") {
    id
    filename
    url
    metadata {
      width
      height
      mime_type
    }
  }
}

// Query multiple assets
query {
  damAssets(search: "landscape", limit: 10) {
    id
    title
    thumbnail
    tags
  }
}
```

### ACF Field

```php
// In field group configuration
array(
    'key' => 'field_dam_hero',
    'label' => 'Hero Image',
    'name' => 'hero_image',
    'type' => 'dam_asset',
    'return_format' => 'object', // or 'url' or 'id'
    'multiple' => 0,
    'mime_types' => 'image/jpeg, image/png',
)

// Template usage
$hero = get_field('hero_image');
if ($hero) {
    // Object format
    echo '<img src="' . $hero['url'] . '" alt="' . $hero['metadata']['alt_text'] . '" />';
    
    // URL format
    echo '<img src="' . $hero . '" />';
    
    // ID format
    $asset = $dam_client->get_asset($hero);
}
```

---

## Standards & Best Practices

All code follows:
- WordPress Coding Standards
- Proper escaping (`esc_html()`, `esc_attr()`, `esc_url()`)
- Internationalization (`__()`, `esc_html_e()`)
- Nonce verification for security
- Sanitization of inputs
- Error handling for `WP_Error`
- Type hinting (PHP 7.0+)
- PHPDoc documentation
- Conditional loading of integrations

---

## Next Steps

1. **JavaScript Implementation:**
   - Create YooTheme field picker integration
   - Create ACF field UI interactions
   - Implement `window.damPickerBridge` modal

2. **CSS Styling:**
   - ACF field styles for asset previews
   - Responsive layouts for multiple selection

3. **Testing:**
   - Test with YooTheme Pro installation
   - Test with ACF Pro installation
   - Verify connection test functionality
   - End-to-end asset selection workflow

4. **Documentation:**
   - Usage examples for developers
   - Integration guides for each platform
   - API reference documentation

---

**Implementation Complete:** PHP Backend  
**Ready For:** JavaScript frontend implementation and testing
