wp-plugins/eksrelay_api.php

@@ -40,6 +40,12 @@ add_action( 'rest_api_init', function () {
         'callback'            => 'eksrelay_shipping_costs',
         'permission_callback' => '__return_true',
     ] );
+
+    register_rest_route( 'eksrelay/v1', '/shipping-eligibility', [
+        'methods'             => 'POST',
+        'callback'            => 'eksrelay_shipping_eligibility',
+        'permission_callback' => '__return_true',
+    ] );
 } );
 
 // ═══════════════════════════════════════════════════════════════════
@@ -718,6 +724,71 @@ function eksrelay_wc_query_like( array $query, array $query_vars ): array {
 //   woocommerce_{method_id}_{instance_id}_settings → cost_EUR, cost_CZK, etc.
 // ═══════════════════════════════════════════════════════════════════
 
+function eksrelay_shipping_eligibility( WP_REST_Request $request ) {
+    $body     = $request->get_json_params() ?: [];
+    $country  = strtoupper( sanitize_text_field( $body['country'] ?? $request->get_param( 'country' ) ?? '' ) );
+    $postcode = strtoupper( preg_replace( '/\s+/', '', sanitize_text_field( $body['postcode'] ?? $body['postalCode'] ?? $body['postal_code'] ?? $request->get_param( 'postcode' ) ?? '' ) ) );
+
+    if ( $country === '' || $postcode === '' ) {
+        return new WP_Error( 'eksrelay_missing_params', 'country and postcode are required', [ 'status' => 400 ] );
+    }
+
+    $blocked = false;
+    $matched = null;
+    $source  = 'aiac_disable_dpd_using_postcode';
+
+    if ( function_exists( 'aiac_get_blocked_postcodes' ) && function_exists( 'aiac_is_postcode_blocked_for_dpd' ) ) {
+        $rules = aiac_get_blocked_postcodes();
+        $patterns = is_array( $rules ) && isset( $rules[ $country ] ) && is_array( $rules[ $country ] ) ? $rules[ $country ] : [];
+        foreach ( $patterns as $pattern ) {
+            if ( aiac_is_postcode_blocked_for_dpd( $postcode, [ $pattern ] ) ) {
+                $blocked = true;
+                $matched = (string) $pattern;
+                break;
+            }
+        }
+    } else {
+        $source = 'fallback_es_ranges';
+        $fallback = [
+            'ES' => [ '35000-35999', '38001-38999', '51001-51015', '52001-52006' ],
+        ];
+        foreach ( $fallback[ $country ] ?? [] as $pattern ) {
+            if ( eksrelay_postcode_matches_pattern( $postcode, $pattern ) ) {
+                $blocked = true;
+                $matched = $pattern;
+                break;
+            }
+        }
+    }
+
+    return [
+        'ok'           => true,
+        'eligible'     => ! $blocked,
+        'country'      => $country,
+        'postcode'     => $postcode,
+        'reason_code'  => $blocked ? 'blocked_postcode' : 'eligible',
+        'reason'       => $blocked ? 'Nie wysyłamy do tego regionu/kodu pocztowego.' : 'Brak blokady dla tego kodu pocztowego w regułach sklepu.',
+        'matched_rule' => $matched,
+        'source'       => $source,
+    ];
+}
+
+function eksrelay_postcode_matches_pattern( $postcode, $pattern ) {
+    $postcode_digits = preg_replace( '/\D/', '', (string) $postcode );
+    $pattern = strtoupper( preg_replace( '/\s+/', '', (string) $pattern ) );
+    if ( strpos( $pattern, '-' ) !== false ) {
+        list( $from, $to ) = array_map( 'trim', explode( '-', $pattern, 2 ) );
+        if ( ctype_digit( $from ) && ctype_digit( $to ) && $postcode_digits !== '' ) {
+            $pc_int = (int) $postcode_digits;
+            return $pc_int >= (int) $from && $pc_int <= (int) $to;
+        }
+    }
+    if ( substr( $pattern, -1 ) === '*' ) {
+        return strpos( strtoupper( (string) $postcode ), rtrim( $pattern, '*' ) ) === 0;
+    }
+    return strtoupper( (string) $postcode ) === $pattern || $postcode_digits === preg_replace( '/\D/', '', $pattern );
+}
+
 function eksrelay_shipping_costs( WP_REST_Request $request ) {
     $zone_id  = intval( $request->get_param( 'zone_id' ) );
     $currency = strtoupper( sanitize_text_field( $request->get_param( 'currency' ) ?: 'PLN' ) );