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Deruan Rimba Campsite

WooCommerce Booking Filter Widget

Check Availability

Select a product, dates and guests

Select Bookable Product

Resource Type

Check-in Date

Check-out Date

Persons

Payment Option

Full Payment Deposit

Available Bookings

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/* WooCommerce Booking Filter — REST API */
add_action( 'rest_api_init', function () {

  /* ── List all bookable products (with resources) ── */
  register_rest_route( 'wcbf/v1', '/products', [
    'methods'             => 'GET',
    'permission_callback' => '__return_true',
    'callback' => function () {
      $q = new WP_Query([
        'post_type'      => 'product',
        'posts_per_page' => 200,
        'post_status'    => 'publish',
        'tax_query'      => [[
          'taxonomy' => 'product_type',
          'field'    => 'slug',
          'terms'    => 'booking',
        ]],
      ]);

      $out = [];
      foreach ( $q->posts as $p ) {
        $prod = wc_get_product( $p->ID );
        if ( ! $prod ) continue;

        $img  = wp_get_attachment_url( $prod->get_image_id() );
        $item = [
          'id'          => $p->ID,
          'name'        => $prod->get_name(),
          'price'       => $prod->get_price(),
          'price_html'  => strip_tags( $prod->get_price_html() ),
          'permalink'   => get_permalink( $p->ID ),
          'image'       => $img ? $img : '',
          // Full product short description (no trimming)
          'description_html' => wp_kses_post( (string) $prod->get_short_description() ),
          'description'      => wp_strip_all_tags( (string) $prod->get_short_description() ),
          // Nonce for wc-ajax=wc_bookings_calculate_cost
          'cost_nonce'  => function_exists('wp_create_nonce') ? wp_create_nonce( 'wc_bookings_calculate_cost' ) : '',
        ];

        if ( $prod instanceof WC_Product_Booking ) {
          $item['has_persons']     = $prod->has_persons();
          $item['min_persons']     = $prod->get_min_persons();
          $item['max_persons']     = $prod->get_max_persons();
          $item['duration']        = $prod->get_duration();
          $item['dur_unit']        = $prod->get_duration_unit();
          $item['duration_type']   = method_exists( $prod, 'get_duration_type' ) ? $prod->get_duration_type() : '';
          $item['has_resources']   = $prod->has_resources();
          $item['resources']       = [];
          $item['resources_label'] = '';

          if ( $prod->has_resources() ) {
            $item['resources_label'] = $prod->get_resource_label() ? $prod->get_resource_label() : 'Resource Type';
            foreach ( $prod->get_resources() as $res ) {
              $item['resources'][] = [
                'id'   => $res->get_id(),
                'name' => $res->get_name(),
              ];
            }
          }
        }

        $out[] = $item;
      }

      return $out;
    },
  ]);

  /* ── Check availability (uses WC Bookings engine; strict per-resource across whole stay) ── */
  register_rest_route( 'wcbf/v1', '/availability', [
    'methods'             => 'GET',
    'permission_callback' => '__return_true',
    'callback' => function ( $req ) {
      $pid         = absint( $req->get_param('product_id') );
      $start       = sanitize_text_field( $req->get_param('start_date') );
      $end         = sanitize_text_field( $req->get_param('end_date') );
      $qty         = absint( $req->get_param('persons') ) ?: 1;
      $resource_id = absint( $req->get_param('resource_id') );

      if ( ! $pid || ! $start || ! $end ) {
        return new WP_Error( 'bad', 'Missing params', [ 'status' => 400 ] );
      }

      $prod = wc_get_product( $pid );
      if ( ! $prod || ! ( $prod instanceof WC_Product_Booking ) ) {
        return new WP_Error( 'bad', 'Not bookable', [ 'status' => 400 ] );
      }

      /* Persons validation (per booking) */
      if ( $prod->has_persons() ) {
        if ( $qty < $prod->get_min_persons() || $qty > $prod->get_max_persons() ) {
          return [ 'available' => false, 'reason' => 'persons', 'product_id' => $pid, 'resource_id' => 0 ];
        }
      }

      $start_ts = strtotime( $start . ' 00:00:00' );
      $end_ts   = strtotime( $end   . ' 00:00:00' );

      if ( ! $start_ts || ! $end_ts || $end_ts <= $start_ts ) {
        return new WP_Error( 'bad', 'Invalid date range', [ 'status' => 400 ] );
      }

      $next_day = function( $ts ) { return strtotime( '+1 day', $ts ); };

      $day_is_available = function( $rid, $cur, $day_end ) use ( $prod, $qty ) {
        $check = $prod->get_available_bookings( $cur, $day_end, (int) $rid, (int) $qty );
        if ( is_wp_error( $check ) ) return false;
        return ! empty( $check );
      };

      $range_is_available_for_resource = function( $rid ) use ( $start_ts, $end_ts, $next_day, $day_is_available ) {
        for ( $cur = $start_ts; $cur < $end_ts; $cur = $next_day( $cur ) ) {
          $day_end = $next_day( $cur );
          if ( ! $day_is_available( $rid, $cur, $day_end ) ) return false;
        }
        return true;
      };

      /* Products WITH resources */
      if ( $prod->has_resources() ) {
        $resources = $prod->get_resources();

        /* Validate an explicitly requested resource */
        if ( $resource_id ) {
          $ok = $range_is_available_for_resource( $resource_id );
          return [
            'available'   => (bool) $ok,
            'product_id'  => $pid,
            'resource_id' => (int) $resource_id,
          ];
        }

        /* Otherwise, pick a SINGLE resource that works for ALL days */
        foreach ( $resources as $res ) {
          $rid = (int) $res->get_id();
          if ( ! $rid ) continue;
          if ( $range_is_available_for_resource( $rid ) ) {
            return [ 'available' => true, 'product_id' => $pid, 'resource_id' => $rid ];
          }
        }

        return [ 'available' => false, 'product_id' => $pid, 'resource_id' => 0 ];
      }

      /* Products WITHOUT resources */
      $ok = $range_is_available_for_resource( 0 );
      return [ 'available' => (bool) $ok, 'product_id' => $pid, 'resource_id' => 0 ];
    },
  ]);

  /* ── Calculate exact booking cost (server-side proxy to WC Bookings calculator) ── */
  register_rest_route( 'wcbf/v1', '/cost', [
    'methods'             => 'GET',
    'permission_callback' => '__return_true',
    'callback' => function( $req ) {
      $pid         = absint( $req->get_param('product_id') );
      $start       = sanitize_text_field( $req->get_param('start_date') );
      $end         = sanitize_text_field( $req->get_param('end_date') );
      $persons     = absint( $req->get_param('persons') ) ?: 0;
      $quantity    = absint( $req->get_param('quantity') ) ?: 0;
      $resource_id = absint( $req->get_param('resource_id') );

      if ( ! $pid || ! $start || ! $end ) {
        return new WP_Error( 'bad', 'Missing params', [ 'status' => 400 ] );
      }

      if ( ! function_exists('wc_get_product') ) {
        return new WP_Error( 'bad', 'WooCommerce not available', [ 'status' => 400 ] );
      }

      $prod = wc_get_product( $pid );
      if ( ! $prod || ! ( $prod instanceof WC_Product_Booking ) ) {
        return new WP_Error( 'bad', 'Not bookable', [ 'status' => 400 ] );
      }

      $start_ts = strtotime( $start . ' 00:00:00' );
      $end_ts   = strtotime( $end   . ' 00:00:00' );
      if ( ! $start_ts || ! $end_ts || $end_ts <= $start_ts ) {
        return new WP_Error( 'bad', 'Invalid date range', [ 'status' => 400 ] );
      }

      $duration = (int) ceil( ( $end_ts - $start_ts ) / DAY_IN_SECONDS );
      if ( $duration < 1 ) $duration = 1;

      $fields = [
        'add-to-cart'                         => $pid,
        'product_id'                          => $pid,
        'wc_bookings_field_start_date_year'   => (int) gmdate( 'Y', $start_ts ),
        'wc_bookings_field_start_date_month'  => (int) gmdate( 'n', $start_ts ),
        'wc_bookings_field_start_date_day'    => (int) gmdate( 'j', $start_ts ),
        // Accommodation-style end date fields
        'wc_bookings_field_start_date_to_year'  => (int) gmdate( 'Y', $end_ts ),
        'wc_bookings_field_start_date_to_month' => (int) gmdate( 'n', $end_ts ),
        'wc_bookings_field_start_date_to_day'   => (int) gmdate( 'j', $end_ts ),
        // Alternate end date fields
        'wc_bookings_field_end_date_year'     => (int) gmdate( 'Y', $end_ts ),
        'wc_bookings_field_end_date_month'    => (int) gmdate( 'n', $end_ts ),
        'wc_bookings_field_end_date_day'      => (int) gmdate( 'j', $end_ts ),
        'wc_bookings_field_duration'          => $duration,
      ];

      if ( $persons > 0 ) {
        $fields['wc_bookings_field_persons'] = $persons;
      }
      if ( $quantity > 0 ) {
        $fields['quantity'] = $quantity;
      }
      if ( $resource_id > 0 ) {
        $fields['wc_bookings_field_resource'] = $resource_id;
      }

      $nonce = function_exists('wp_create_nonce') ? wp_create_nonce( 'wc_bookings_calculate_cost' ) : '';
      $endpoint = home_url( '/?wc-ajax=wc_bookings_calculate_cost' );

      $payload = [
        'security' => $nonce,
        'form'     => http_build_query( $fields ),
      ];

      $resp = wp_remote_post( $endpoint, [
        'timeout'     => 15,
        'redirection' => 3,
        'sslverify'   => true,
        'headers'     => [
          'Accept'            => 'application/json, text/plain, */*',
          'X-Requested-With'  => 'XMLHttpRequest',
          'Content-Type'      => 'application/x-www-form-urlencoded; charset=UTF-8',
        ],
        'body'        => $payload,
      ] );

      if ( is_wp_error( $resp ) ) {
        return [ 'ok' => false, 'error' => $resp->get_error_message() ];
      }

      $body = wp_remote_retrieve_body( $resp );
      $data = json_decode( $body, true );

      // Return JSON if we got JSON
      if ( is_array( $data ) ) {
        // The calculator usually returns { cost: "123" } or fragments.
        if ( isset( $data['cost'] ) ) {
          return [ 'ok' => true, 'cost' => (float) preg_replace('/[^0-9.]/', '', (string) $data['cost'] ) ];
        }
        if ( isset( $data['cost_html'] ) ) {
          return [ 'ok' => true, 'cost_html' => (string) $data['cost_html'] ];
        }
        return [ 'ok' => false, 'error' => 'No cost returned', 'raw' => $data ];
      }

      // Fallback: try to parse a number from HTML/text
      $plain = trim( preg_replace( '/\s+/', ' ', wp_strip_all_tags( (string) $body ) ) );
      if ( preg_match( '/([0-9]{1,3}(?:,[0-9]{3})*(?:\.[0-9]+)?|[0-9]+(?:\.[0-9]+)?)/', $plain, $m ) ) {
        $num = (float) str_replace( ',', '', $m[1] );
        return [ 'ok' => true, 'cost' => $num ];
      }

      return [ 'ok' => false, 'error' => 'Unable to parse cost' ];
    },
  ]);
});

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