namespace MyPlugin\Gateways;
 
use ProNobat\Gateways\PaymentGatewayInterface;
use ProNobat\Gateways\PaymentRequestResult;
use ProNobat\Gateways\PaymentVerifyResult;
use ProNobat\Gateways\PaymentRefundResult;
use ProNobat\Settings\Settings;
 
class MyGateway implements PaymentGatewayInterface {
 
    public function get_name(): string {
        return 'my_gateway'; // باید با کلید Settings و مقدار enum پایگاه داده مطابقت داشته باشد
    }
 
    public function supports_refund(): bool {
        return false; // اگر درگاه استرداد خودکار ندارد، false برگردانید
    }
 
    private function api_key(): string {
        // تنظیمات درگاه زیر payments.<slug> ذخیره می‌شود
        return (string) Settings::instance()->get_secret( 'payments.my_gateway.api_key' );
    }
 
    public function request(
        int $amount_toman,
        string $description,
        string $callback_url,
        array $metadata = []
    ): PaymentRequestResult {
        $response = wp_remote_post( 'https://mygateway.com/api/payment', [
            'body' => [
                'api_key'      => $this->api_key(),
                'amount'       => $amount_toman,
                'description'  => $description,
                'callback_url' => $callback_url,
            ],
        ] );
 
        $body = json_decode( (string) wp_remote_retrieve_body( $response ), true );
 
        return new PaymentRequestResult(
            success:      ! is_wp_error( $response ) && ( $body['status'] ?? '' ) === 'ok',
            authority:    (string) ( $body['authority'] ?? '' ),
            redirect_url: (string) ( $body['payment_url'] ?? '' ),
            error:        (string) ( $body['message'] ?? '' ),
        );
    }
 
    public function verify(
        string $authority,
        int $amount_toman,
        array $callback_data = []
    ): PaymentVerifyResult {
        $response = wp_remote_post( 'https://mygateway.com/api/verify', [
            'body' => [
                'api_key'   => $this->api_key(),
                'authority' => sanitize_text_field( $authority ),
                'amount'    => $amount_toman,
            ],
        ] );
 
        $body = json_decode( (string) wp_remote_retrieve_body( $response ), true );
 
        return new PaymentVerifyResult(
            success: ! is_wp_error( $response ) && ( $body['status'] ?? '' ) === 'verified',
            ref_id:  (string) ( $body['ref_id'] ?? '' ),
            error:   (string) ( $body['message'] ?? '' ),
        );
    }
 
    public function refund(
        string $gateway_ref,
        int $amount_toman,
        string $reason = ''
    ): PaymentRefundResult {
        return new PaymentRefundResult( success: false, error: 'manual_refund_required' );
    }
}

add_filter( 'pronobat_payment_gateways', function( array $gateways ) {
    $gateways['my_gateway'] = new \MyPlugin\Gateways\MyGateway();
    return $gateways;
} );

add_filter( 'pronobat_available_slots', function( array $slots, int $staff_id, string $date, int $service_id ) {
    // مثال: حذف بازه‌های بعد از ساعت ۱۷ برای سرویس شماره ۵
    if ( $service_id === 5 ) {
        $slots = array_filter( $slots, fn($s) => substr( $s['start'], 0, 2 ) < 17 );
    }
    return array_values( $slots );
}, 10, 4 );