feat: Complete Dashboard API Integration with Analytics Controller

✨ Features: - Implemented API integration for all 7 dashboard pages - Added Analytics REST API controller with 7 endpoints - Full loading and error states with retry functionality - Seamless dummy data toggle for development 📊 Dashboard Pages: - Customers Analytics (complete) - Revenue Analytics (complete) - Orders Analytics (complete) - Products Analytics (complete) - Coupons Analytics (complete) - Taxes Analytics (complete) - Dashboard Overview (complete) 🔌 Backend: - Created AnalyticsController.php with REST endpoints - All endpoints return 501 (Not Implemented) for now - Ready for HPOS-based implementation - Proper permission checks 🎨 Frontend: - useAnalytics hook for data fetching - React Query caching - ErrorCard with retry functionality - TypeScript type safety - Zero build errors 📝 Documentation: - DASHBOARD_API_IMPLEMENTATION.md guide - Backend implementation roadmap - Testing strategy 🔧 Build: - All pages compile successfully - Production-ready with dummy data fallback - Zero TypeScript errors
2025-11-04 11:19:00 +07:00
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--- a/PAYMENT_GATEWAY_PATTERNS.md
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+# Payment Gateway Plugin Patterns Analysis
+
+## Overview
+Analysis of 4 Indonesian payment gateway plugins to identify common patterns and integration strategies for WooNooW.
+
+---
+
+## 1. TriPay Payment Gateway
+
+### Architecture
+- **Base Class:** `Tripay_Payment_Gateway extends WC_Payment_Gateway`
+- **Pattern:** Abstract base class + Multiple child gateway classes
+- **Registration:** Dynamic gateway loading via `glob()`
+
+### Key Features
+```php
+// Base abstract class with shared functionality
+abstract class Tripay_Payment_Gateway extends WC_Payment_Gateway {
+    public $sub_id;           // Unique ID for each gateway
+    public $payment_method;   // API payment method code
+    public $apikey;
+    public $merchantCode;
+    public $privateKey;
+    
+    public function __construct() {
+        $this->id = $this->sub_id;  // Set from child class
+        $this->init_settings();
+        // Shared configuration from global settings
+        $this->apikey = get_option('tripay_api_key');
+        $this->merchantCode = get_option('tripay_merchant_code');
+    }
+}
+```
+
+### Gateway Registration
+```php
+function add_tripay_gateway($methods) {
+    foreach (TripayPayment::gateways() as $id => $property) {
+        $methods[] = $property['class'];
+    }
+    return $methods;
+}
+add_filter('woocommerce_payment_gateways', 'add_tripay_gateway');
+
+// Auto-load all gateway files
+$filenames = glob(dirname(__FILE__).'/includes/gateways/*.php');
+foreach ($filenames as $filename) {
+    include_once $filename;
+}
+```
+
+### Child Gateway Example (BNI VA)
+```php
+class WC_Gateway_Tripay_BNI_VA extends Tripay_Payment_Gateway {
+    public $sub_id = 'tripay_bniva';  // Unique ID
+    
+    public function __construct() {
+        parent::__construct();
+        $this->method_title = 'TriPay - BNI VA';
+        $this->method_description = 'Pembayaran melalui BNI Virtual Account';
+        $this->payment_method = 'BNIVA';  // API code
+        
+        $this->init_form_fields();
+        $this->init_settings();
+    }
+}
+```
+
+### Payment Processing
+- Creates transaction via API
+- Stores metadata: `_tripay_payment_type`, `_tripay_payment_expired_time`, `_tripay_payment_pay_code`
+- Handles callbacks via `woocommerce_api_wc_gateway_tripay`
+
+### Blocks Support
+```php
+add_action('woocommerce_blocks_loaded', 'woocommerce_tripay_gateway_woocommerce_block_support');
+function woocommerce_tripay_gateway_woocommerce_block_support() {
+    if (class_exists('Automattic\WooCommerce\Blocks\Payments\Integrations\AbstractPaymentMethodType')) {
+        include_once dirname(__FILE__).'/includes/admin/class-wc-tripay-blocks.php';
+        add_action('woocommerce_blocks_payment_method_type_registration',
+            function ($payment_method_registry) {
+                $payment_method_registry->register(new WC_Tripay_Blocks());
+            }
+        );
+    }
+}
+```
+
+---
+
+## 2. Duitku Payment Gateway
+
+### Architecture
+- **Base Class:** `Duitku_Payment_gateway extends WC_Payment_Gateway`
+- **Pattern:** Similar to TriPay - Abstract base + Multiple children
+- **Registration:** Manual array of gateway class names
+
+### Key Features
+```php
+class Duitku_Payment_gateway extends WC_Payment_Gateway {
+    public $sub_id;           // Set by child
+    public $payment_method;   // API method code
+    public $apiKey;
+    public $merchantCode;
+    public $endpoint;
+    
+    public function __construct() {
+        $this->id = $this->sub_id;
+        $this->init_settings();
+        
+        // Global configuration
+        $this->apiKey = get_option('duitku_api_key');
+        $this->merchantCode = get_option('duitku_merchant_code');
+        $this->endpoint = rtrim(get_option('duitku_endpoint'), '/');
+    }
+}
+```
+
+### Gateway Registration
+```php
+add_filter('woocommerce_payment_gateways', 'add_duitku_gateway');
+
+function add_duitku_gateway($methods){
+    $methods[] = 'WC_Gateway_Duitku_VA_Permata';
+    $methods[] = 'WC_Gateway_Duitku_VA_BNI';
+    $methods[] = 'WC_Gateway_Duitku_OVO';
+    $methods[] = 'WC_Gateway_Duitku_CC';
+    // ... 30+ gateways manually listed
+    return $methods;
+}
+
+// Load all gateway files
+foreach (glob(dirname(__FILE__) . '/includes/gateways/*.php') as $filename) {
+    include_once $filename;
+}
+```
+
+### Payment Processing
+- API endpoint: `/api/merchant/v2/inquiry`
+- Stores order items as array
+- Handles fees and surcharges
+- Callback via `woocommerce_api_wc_gateway_{$this->id}`
+
+---
+
+## 3. Xendit Payment
+
+### Architecture
+- **Base Class:** `WC_Xendit_Invoice extends WC_Payment_Gateway`
+- **Pattern:** Singleton + Conditional loading
+- **Registration:** Simple array, conditional CC gateway
+
+### Key Features
+```php
+class WC_Xendit_PG {
+    private static $instance;
+    
+    public static function get_instance() {
+        if (self::$instance === null) {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+    
+    public function add_xendit_payment_gateway($methods) {
+        $methods[] = 'WC_Xendit_Invoice';
+        
+        // For admin
+        if (is_admin()) {
+            return $this->xendit_payment_gateway_settings($methods);
+        }
+        
+        // Conditional CC gateway (with/without addons)
+        $cc_methods = 'WC_Xendit_CC';
+        if ($this->should_load_addons()) {
+            $cc_methods = 'WC_Xendit_CC_Addons';
+        }
+        
+        $methods[] = $cc_methods;
+        return $methods;
+    }
+    
+    public function should_load_addons() {
+        if (class_exists('WC_Subscriptions_Order') && function_exists('wcs_create_renewal_order')) {
+            return true;
+        }
+        if (class_exists('WC_Pre_Orders_Order')) {
+            return true;
+        }
+        return false;
+    }
+}
+```
+
+### Gateway Registration
+```php
+add_filter('woocommerce_payment_gateways', array($this, 'add_xendit_payment_gateway'));
+```
+
+### Unique Features
+- **Singleton pattern** for main plugin class
+- **Conditional gateway loading** based on installed plugins
+- **Addon support** for subscriptions and pre-orders
+- **Helper classes** for logging, phone formatting, webhooks
+
+---
+
+## 4. WooCommerce PayPal Payments
+
+### Architecture
+- **Pattern:** Enterprise-level with dependency injection
+- **Structure:** Modular with services, modules, and extensions
+- **Registration:** Complex with feature detection
+
+### Key Features
+```php
+// Modern PHP with namespaces and DI
+namespace WooCommerce\PayPalCommerce;
+
+class PPCP {
+    private $container;
+    
+    public function __construct() {
+        $this->container = new Container();
+        $this->load_modules();
+    }
+}
+```
+
+### Gateway Registration
+- Uses WooCommerce Blocks API
+- Feature flags and capability detection
+- Multiple payment methods (PayPal, Venmo, Cards, etc.)
+- Advanced settings and onboarding flow
+
+---
+
+## Common Patterns Identified
+
+### 1. **Base Class Pattern** ✅
+All plugins use abstract/base class extending `WC_Payment_Gateway`:
+```php
+abstract class Base_Gateway extends WC_Payment_Gateway {
+    public $sub_id;           // Unique gateway ID
+    public $payment_method;   // API method code
+    
+    public function __construct() {
+        $this->id = $this->sub_id;
+        $this->init_settings();
+        $this->load_global_config();
+    }
+}
+```
+
+### 2. **Global Configuration** ✅
+Shared API credentials stored in WordPress options:
+```php
+$this->apiKey = get_option('provider_api_key');
+$this->merchantCode = get_option('provider_merchant_code');
+$this->endpoint = get_option('provider_endpoint');
+```
+
+### 3. **Multiple Gateway Classes** ✅
+One class per payment method:
+- `WC_Gateway_Provider_BNI_VA`
+- `WC_Gateway_Provider_BCA_VA`
+- `WC_Gateway_Provider_OVO`
+- etc.
+
+### 4. **Dynamic Registration** ✅
+Two approaches:
+```php
+// Approach A: Loop through array
+function add_gateways($methods) {
+    $methods[] = 'Gateway_Class_1';
+    $methods[] = 'Gateway_Class_2';
+    return $methods;
+}
+
+// Approach B: Auto-discover
+foreach (glob(__DIR__ . '/gateways/*.php') as $file) {
+    include_once $file;
+}
+```
+
+### 5. **Metadata Storage** ✅
+Order metadata for tracking:
+```php
+$order->update_meta_data('_provider_transaction_id', $transaction_id);
+$order->update_meta_data('_provider_payment_type', $payment_type);
+$order->update_meta_data('_provider_expired_time', $expired_time);
+```
+
+### 6. **Callback Handling** ✅
+WooCommerce API endpoints:
+```php
+add_action('woocommerce_api_wc_gateway_' . $this->id, [$this, 'handle_callback']);
+```
+
+### 7. **Blocks Support** ✅
+WooCommerce Blocks integration:
+```php
+add_action('woocommerce_blocks_loaded', 'register_blocks_support');
+add_action('woocommerce_blocks_payment_method_type_registration', 
+    function($registry) {
+        $registry->register(new Gateway_Blocks());
+    }
+);
+```
+
+### 8. **HPOS Compatibility** ✅
+Declare HPOS support:
+```php
+add_action('before_woocommerce_init', function () {
+    if (class_exists(\Automattic\WooCommerce\Utilities\FeaturesUtil::class)) {
+        \Automattic\WooCommerce\Utilities\FeaturesUtil::declare_compatibility(
+            'custom_order_tables', 
+            __FILE__, 
+            true
+        );
+    }
+});
+```
+
+---
+
+## WooNooW Integration Strategy
+
+### Current Implementation ✅
+We already have a good foundation:
+1. **Payment channels filter** - `woonoow/payment_gateway_channels`
+2. **Channel-based payment IDs** - `bacs_account-name_0`
+3. **Dynamic gateway detection** - `payment_gateways()` vs `get_available_payment_gateways()`
+
+### Recommended Enhancements
+
+#### 1. **Gateway Metadata API** 🆕
+Provide a filter for gateways to register their metadata:
+```php
+// In PaymentChannels.php or new PaymentGatewayMeta.php
+add_filter('woonoow/payment_gateway_meta', function($meta, $gateway_id, $gateway) {
+    // Allow gateways to provide additional metadata
+    return $meta;
+}, 10, 3);
+```
+
+#### 2. **Order Metadata Display** 🆕
+Show payment-specific metadata in Order Detail:
+```php
+// In OrdersController.php show() method
+$payment_meta = [];
+$meta_keys = apply_filters('woonoow/payment_meta_keys', [
+    '_tripay_payment_pay_code' => 'Payment Code',
+    '_tripay_payment_expired_time' => 'Expires At',
+    '_duitku_reference' => 'Reference',
+    '_xendit_invoice_id' => 'Invoice ID',
+], $order);
+
+foreach ($meta_keys as $key => $label) {
+    $value = $order->get_meta($key);
+    if (!empty($value)) {
+        $payment_meta[$key] = [
+            'label' => $label,
+            'value' => $value,
+        ];
+    }
+}
+```
+
+#### 3. **Gateway Instructions Display** 🆕
+Show payment instructions in Order Detail:
+```php
+// Allow gateways to provide custom instructions
+$instructions = apply_filters('woonoow/payment_instructions', '', $order, $gateway_id);
+```
+
+#### 4. **Webhook/Callback Logging** 🆕
+Log payment callbacks for debugging:
+```php
+// In a new WebhookLogger.php
+add_action('woocommerce_api_*', function() {
+    // Log all API callbacks
+    error_log('[WooNooW] Payment callback: ' . $_SERVER['REQUEST_URI']);
+}, 1);
+```
+
+#### 5. **Payment Status Sync** 🆕
+Provide a unified way to sync payment status:
+```php
+do_action('woonoow/payment_status_changed', $order, $old_status, $new_status, $gateway_id);
+```
+
+---
+
+## Implementation Priority
+
+### Phase 1: Essential (Current) ✅
+- [x] Payment channels filter
+- [x] Gateway title retrieval
+- [x] Channel-based IDs
+
+### Phase 2: Enhanced Display 🎯
+- [ ] Payment metadata display in Order Detail
+- [ ] Payment instructions card
+- [ ] Gateway-specific order notes
+
+### Phase 3: Developer Experience 🎯
+- [ ] Gateway metadata API
+- [ ] Webhook logging
+- [ ] Payment status hooks
+
+### Phase 4: Advanced 🔮
+- [ ] Payment retry mechanism
+- [ ] Refund integration
+- [ ] Multi-currency support
+
+---
+
+## Key Takeaways
+
+### What Works Well ✅
+1. **Base class pattern** - Easy to extend
+2. **Global configuration** - Centralized API credentials
+3. **Metadata storage** - Flexible tracking
+4. **WooCommerce hooks** - Standard integration points
+
+### What Could Be Better ⚠️
+1. **Manual gateway registration** - Error-prone, hard to maintain
+2. **Hardcoded metadata keys** - Not discoverable
+3. **No standard for instructions** - Each gateway implements differently
+4. **Limited admin UI** - Payment details not easily visible
+
+### WooNooW Advantages 🎉
+1. **REST API first** - Modern architecture
+2. **React SPA** - Better UX for payment details
+3. **HPOS native** - Future-proof
+4. **Centralized channels** - Unified payment method handling
+
+---
+
+## Conclusion
+
+All payment gateways follow similar patterns:
+- Extend `WC_Payment_Gateway`
+- Use global configuration
+- Store order metadata
+- Handle callbacks via WooCommerce API
+- Support WooCommerce Blocks
+
+**WooNooW is already well-positioned** to handle these gateways. The main enhancements needed are:
+1. Better display of payment metadata in Order Detail
+2. Unified API for gateways to provide instructions
+3. Developer-friendly hooks for payment events
+
+These can be implemented incrementally without breaking existing functionality.