Woo Custom Shipping Method

woo_custom_shipping_method.php

<?php
/**
 * Plugin Name: Woo Custom Shipping Method
 * Description: Custom Shipping Method for WooCommerce
 * Version: 1.0.0
 */
if (!defined('WPINC')) {
    die;
}

/*
 * Check if WooCommerce is active
 */
if (in_array('woocommerce/woocommerce.php', apply_filters('active_plugins', get_option('active_plugins')))) {

    function custom_shipping_method() {
        if (!class_exists('Custom_Shipping_Method')) {

            class Custom_Shipping_Method extends WC_Shipping_Method {

                /**
                 * Constructor for your shipping class
                 *
                 * @access public
                 * @return void
                 */
                public function __construct() {
                    $this->id = 'customship';
                    $this->method_title = __('Elivate Shipping', 'woo_custom_shipping_method');
                    $this->method_description = __('Custom Shipping Method for Elivate', 'woo_custom_shipping_method');

                    // Availability & Countries
                    $this->availability = 'including';
                    $this->countries = array(
                        'US', // Unites States of America
                        /*
                        'CA', // Canada
                              'DE', // Germany
                              'GB', // United Kingdom
                              'IT',   // Italy
                              'ES', // Spain
                              'HR'  // Croatia
                             */
                    );

                    $this->init();

                    $this->enabled = isset($this->settings['enabled']) ? $this->settings['enabled'] : 'yes';
                    $this->title = isset($this->settings['title']) ? $this->settings['title'] : __('Custom Shipping', 'woo_custom_shipping_method');
                }

                /**
                 * Init your settings
                 *
                 * @access public
                 * @return void
                 */
                function init() {
                    // Load the settings API
                    $this->init_form_fields();
                    $this->init_settings();

                    // Save settings in admin if you have any defined
                    add_action('woocommerce_update_options_shipping_' . $this->id, array($this, 'process_admin_options'));
                }

                /**
                 * Define settings field for this shipping
                 * @return void
                 */
                function init_form_fields() {

                    $this->form_fields = array(
                        'enabled' => array(
                            'title' => __('Enable', 'woo_custom_shipping_method'),
                            'type' => 'checkbox',
                            'description' => __('Enable this shipping.', 'woo_custom_shipping_method'),
                            'default' => 'yes'
                        ),
                        'title' => array(
                            'title' => __('Title', 'woo_custom_shipping_method'),
                            'type' => 'text',
                            'description' => __('Title to be display on site', 'woo_custom_shipping_method'),
                            'default' => __('TutsPlus Shipping', 'woo_custom_shipping_method')
                        ),
                        'woocustomshipping_price_1' => array(
                            'title' => __('Fee ($), count products = 1', 'woo_custom_shipping_method'),
                            'type' => 'text',
                            'description' => __('Shipping Fee for 1 product', 'woo_custom_shipping_method'),
                            'default' => 1
                        ),
                        'woocustomshipping_price_2' => array(
                            'title' => __('Fee ($), count products > 1', 'woo_custom_shipping_method'),
                            'type' => 'text',
                            'description' => __('Shipping Fee for 2 products and more', 'woo_custom_shipping_method'),
                            'default' => 2
                        ),

                    );
                }

                /**
                 * This function is used to calculate the shipping cost. Within this function we can check for weights, dimensions and other parameters.
                 *
                 * @access public
                 * @param mixed $package
                 * @return void
                 */
                public function calculate_shipping($package) {

                    $weight = 0;
                    $cost = 0;
                    $country = $package["destination"]["country"];

                    $cnt = 0;
                    foreach ($package['contents'] as $item_id => $values) {
                        $cnt += $values['quantity'];
                    }

                    $fee = $cnt > 1 ? $this->settings['woocustomshipping_price_2'] : $this->settings['woocustomshipping_price_1'];

                    $rate = array(
                        'id' => $this->id,
                        'label' => $this->title,
                        'cost' => $fee
                    );

                    $this->add_rate($rate);
                }

            }

        }
    }

    add_action('woocommerce_shipping_init', 'custom_shipping_method');

    function add_custom_shipping_method($methods) {
        $methods[] = 'Custom_Shipping_Method';
        return $methods;
    }

    add_filter('woocommerce_shipping_methods', 'add_custom_shipping_method');

}