woocommerce/includes/shipping/local-pickup/class-wc-shipping-local-pickup.php

<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

/**
 * Local Pickup Shipping Method
 *
 * A simple shipping method allowing free pickup as a shipping method
 *
 * @class 		WC_Shipping_Local_Pickup
 * @version		2.0.0
 * @package		WooCommerce/Classes/Shipping
 * @author 		WooThemes
 */
class WC_Shipping_Local_Pickup extends WC_Shipping_Method {

	/**
	 * __construct function.
	 *
	 * @access public
	 * @return void
	 */
	function __construct() {
		$this->id 			= 'local_pickup';
		$this->method_title = __( 'Local Pickup', 'woocommerce' );
		$this->init();
	}

	/**
	 * init function.
	 *
	 * @access public
	 * @return void
	 */
	function init() {

		// Load the settings.
		$this->init_form_fields();
		$this->init_settings();

		// Define user set variables
		$this->enabled		= $this->get_option( 'enabled' );
		$this->title		= $this->get_option( 'title' );
		$this->codes		= $this->get_option( 'codes' );
		$this->availability	= $this->get_option( 'availability' );
		$this->countries	= $this->get_option( 'countries' );

		// Actions
		add_action( 'woocommerce_update_options_shipping_' . $this->id, array( $this, 'process_admin_options' ) );
	}

	/**
	 * calculate_shipping function.
	 *
	 * @access public
	 * @return void
	 */
	function calculate_shipping() {
		$rate = array(
			'id' 		=> $this->id,
			'label' 	=> $this->title,
		);
		$this->add_rate($rate);
	}

	/**
	 * init_form_fields function.
	 *
	 * @access public
	 * @return void
	 */
	function init_form_fields() {
		$this->form_fields = array(
			'enabled' => array(
				'title'			=> __( 'Enable', 'woocommerce' ),
				'type'			=> 'checkbox',
				'label'			=> __( 'Enable local pickup', 'woocommerce' ),
				'default'		=> 'no'
			),
			'title' => array(
				'title'			=> __( 'Title', 'woocommerce' ),
				'type'			=> 'text',
				'description'	=> __( 'This controls the title which the user sees during checkout.', 'woocommerce' ),
				'default'		=> __( 'Local Pickup', 'woocommerce' ),
				'desc_tip'	  	=> true,
			),
			'codes' => array(
				'title'       => __( 'Allowed Zip/Post Codes', 'woocommerce' ),
				'type'        => 'text',
				'desc_tip'    => __( 'What zip/post codes are available for local pickup?', 'woocommerce' ),
				'default'     => '',
				'description' => __( 'Separate codes with a comma. Accepts wildcards, e.g. <code>P*</code> will match a postcode of PE30.', 'woocommerce' ),
				'placeholder' => 'e.g. 12345, 56789'
			),
			'availability' => array(
				'title'			=> __( 'Method availability', 'woocommerce' ),
				'type'			=> 'select',
				'default'		=> 'all',
				'class'			=> 'availability',
				'options'		=> array(
					'all'		=> __( 'All allowed countries', 'woocommerce' ),
					'specific'	=> __( 'Specific Countries', 'woocommerce' )
				)
			),
			'countries' => array(
				'title'			=> __( 'Specific Countries', 'woocommerce' ),
				'type'			=> 'multiselect',
				'class'			=> 'chosen_select',
				'css'			=> 'width: 450px;',
				'default'		=> '',
				'options'		=> WC()->countries->get_shipping_countries(),
				'custom_attributes' => array(
					'data-placeholder' => __( 'Select some countries', 'woocommerce' )
				)
			)
		);
	}

	/**
	 * admin_options function.
	 *
	 * @access public
	 * @return void
	 */
	function admin_options() {
		?>
		<h3><?php echo $this->method_title; ?></h3>
		<p><?php _e( 'Local pickup is a simple method which allows the customer to pick up their order themselves.', 'woocommerce' ); ?></p>
		<table class="form-table">
			<?php $this->generate_settings_html(); ?>
		</table> <?php
	}

	/**
	 * is_available function.
	 *
	 * @access public
	 * @param array $package
	 * @return bool
	 */
	function is_available( $package ) {

		$is_available = true;

		if ( $this->enabled == "no" ) {

			$is_available = false;

		} else {

			// If post codes are listed, let's use them.
			$codes = array();

			if ( $this->codes != '' ) {
				foreach( explode( ',', $this->codes ) as $code ) {
					$codes[] = strtoupper( trim( $code ) );
				}
			}

			if ( ! empty( $codes ) ) {

				$found_match        = false;
				$postcode           = $this->clean( $package['destination']['postcode'] );
				$formatted_postcode = wc_format_postcode( $postcode, $package['destination']['country'] );

				if ( in_array( $postcode, $codes ) || in_array( $formatted_postcode, $codes ) ) {
					$found_match = true;
				}

				// Wildcard search
				if ( ! $found_match ) {
					$customer_postcode        = $formatted_postcode;
					$customer_postcode_length = strlen( $customer_postcode );

					for ( $i = 0; $i <= $customer_postcode_length; $i++ ) {
						if ( in_array( $customer_postcode, $codes ) ) {
							$found_match = true;
							break;
						}
						$customer_postcode = substr( $customer_postcode, 0, -2 ) . '*';
					}
				}

				if ( ! $found_match ) {

					$is_available = false;

				} else {

					if ( $this->availability === 'specific' ) {
						$ship_to_countries = $this->countries;
					} else {
						$ship_to_countries = array_keys( WC()->countries->get_shipping_countries() );
					}

					if ( is_array( $ship_to_countries ) && ! in_array( $package['destination']['country'], $ship_to_countries ) ) {
						$is_available = false;
					}

				}
			} else {
				if ( $this->availability === 'specific' ) {
					$ship_to_countries = $this->countries;
				} else {
					$ship_to_countries = array_keys( WC()->countries->get_shipping_countries() );
				}

				if ( is_array( $ship_to_countries ) && ! in_array( $package['destination']['country'], $ship_to_countries ) ) {
					$is_available = false;
				}
			}
		}

		return apply_filters( 'woocommerce_shipping_' . $this->id . '_is_available', $is_available, $package );
	}

	/**
	 * clean function.
	 *
	 * @access public
	 * @param mixed $code
	 * @return string
	 */
	function clean( $code ) {
		return str_replace( '-', '', sanitize_title( $code ) ) . ( strstr( $code, '*' ) ? '*' : '' );
	}

}