// functions.php or custom plugin
add_action('rest_api_init', function() {
    register_rest_route('mailodds/v1', '/webhook', [
        'methods' => 'POST',
        'callback' => 'handle_mailodds_webhook',
        'permission_callback' => 'verify_mailodds_signature',
    ]);
});

function verify_mailodds_signature($request) {
    $signature = $request->get_header('X-MailOdds-Signature');
    $secret = get_option('mailodds_webhook_secret');
    $expected = hash_hmac('sha256', $request->get_body(), $secret);
    return hash_equals($expected, $signature);
}

function handle_mailodds_webhook($request) {
    $payload = $request->get_json_params();
    $event = $payload['event'];

    switch ($event) {
        case 'message.bounced':
            // Auto-suppress bounced email
            break;
        case 'message.opened':
            if (!($payload['is_bot'] ?? false)) {
                // Track human open
            }
            break;
        case 'message.clicked':
            if (!($payload['is_bot'] ?? false)) {
                // Track human click
            }
            break;
    }
    return new WP_REST_Response(['status' => 'ok'], 200);
}

// Schedule daily suppression sync
add_action('mailodds_suppression_sync', 'sync_suppression_list');
if (!wp_next_scheduled('mailodds_suppression_sync')) {
    wp_schedule_event(time(), 'daily', 'mailodds_suppression_sync');
}

function sync_suppression_list() {
    $response = wp_remote_get('https://api.mailodds.com/v1/suppression', [
        'headers' => [
            'Authorization' => 'Bearer ' . MAILODDS_API_KEY,
        ],
        'timeout' => 15,
    ]);

    if (is_wp_error($response)) {
        return;
    }

    $data = json_decode(wp_remote_retrieve_body($response), true);
    if (!empty($data['suppressions'])) {
        update_option('mailodds_suppression_list', $data['suppressions']);
    }
}

// Connect WooCommerce store to MailOdds (PHP SDK)
use MailOdds\Client;

$client = new Client('YOUR_API_KEY');

// Connect your WooCommerce store
$store = $client->stores->connect([
    'platform' => 'woocommerce',
    'shop_domain' => 'your-store.com',
    'consumer_key' => 'ck_...',
    'consumer_secret' => 'cs_...'
]);

echo $store->id;     // Store ID for sync operations
echo $store->status; // "connected" when ready

// Trigger product catalog sync
$client->stores->sync($store->id);

// Send WooCommerce order confirmation via MailOdds (PHP SDK)
use MailOdds\Client;

$client = new Client('YOUR_API_KEY');

// Send order confirmation email
$result = $client->deliver([
    'from' => 'orders@your-store.com',
    'to' => $order->get_billing_email(),
    'subject' => 'Order #' . $order->get_order_number() . ' confirmed',
    'html' => $orderConfirmationHtml,
    'tags' => ['order-confirmation', 'woocommerce'],
    'metadata' => [
        'order_id' => $order->get_id(),
        'order_total' => $order->get_total()
    ]
]);

// $result->message_id for tracking
// Webhook events: delivered, opened, clicked

// Query synced WooCommerce products for campaigns
$products = $client->storeProducts->list([
    'store_id' => $storeId,
    'limit' => 20,
    'sort' => 'created_at'
]);

// Use in campaign templates
foreach ($products->data as $product) {
    echo $product->title;      // Product name
    echo $product->price;      // Current price
    echo $product->image_url;  // Product image
    echo $product->url;        // Product page URL
}