commit 2003f39bad4a1e7585835714958d62a82086088e
Author: Eric Fawcett <eric.fawcett@gmail.com>
Date:   Wed Jun 16 15:54:36 2021 -0400

    Initial Commit

diff --git a/wc-shipping-carrier-account.php b/wc-shipping-carrier-account.php
new file mode 100644
index 0000000..b493d08
--- /dev/null
+++ b/wc-shipping-carrier-account.php
@@ -0,0 +1,210 @@
+<?php
+
+/**
+ * Plugin Name: Carrier Account Shipping
+ * Description: Carrier Account Shipping Method for WooCommerce
+ * Version: 1.0.0
+ * Author: Eric Fawcett
+ * Author URI: http://ericfawcett.com
+ */
+
+if ( ! defined( 'WPINC' ) )
+{
+
+	die;
+
+}
+
+/*
+ * Check if WooCommerce is active
+ */
+if ( in_array( 'woocommerce/woocommerce.php', apply_filters( 'active_plugins', get_option( 'active_plugins' ) ) ) )
+{
+	function carrieracct_shipping_method()
+	{
+		if ( ! class_exists( 'CarrierAcct_Shipping_Method' ) )
+		{
+			class CarrierAcct_Shipping_Method extends WC_Shipping_Method {
+				/**
+				 * Constructor for your shipping class
+				 *
+				 * @access public
+				 * @return void
+				 */
+				public function __construct()
+				{
+					$this->id                 = 'carrieracct';
+					$this->method_title       = __( 'CarrierAcct Shipping', 'carrieracct' );
+					$this->method_description = __( 'Custom Shipping Method for CarrierAcct', 'carrieracct' );
+
+					$this->init();
+
+					$this->enabled = isset( $this->settings['enabled'] ) ? $this->settings['enabled'] : 'no';
+					$this->title = isset( $this->settings['title'] ) ? $this->settings['title'] : __( 'CarrierAcct Shipping', 'carrieracct' );
+
+				}
+
+
+				/**
+				 * 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', 'carrieracct' ),
+							'type' => 'checkbox',
+							'description' => __( 'Enable this shipping.', 'carrieracct' ),
+							'default' => 'yes'
+						),
+
+						'title' => array(
+							'title' => __( 'Title', 'carrieracct' ),
+							'type' => 'text',
+							'description' => __( 'Title to be display on site', 'carrieracct' ),
+							'default' => __( 'CarrierAcct Shipping', 'carrieracct' )
+						),
+					);
+
+				}
+
+
+				/**
+				 * 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 = array( ))
+				{
+
+					$rate = array(
+						'id'       => $this->id,
+						'label'    => $this->title,
+						'cost'     => '0',
+						'calc_tax' => 'per_order',
+						'package'  => $package,
+					);
+
+					// Register the rate
+					$this->add_rate( $rate );
+
+				}
+
+
+			}
+
+
+		}
+	}
+
+
+	add_action( 'woocommerce_shipping_init', 'carrieracct_shipping_method' );
+
+	function add_carrieracct_shipping_method( $methods )
+	{
+		$methods['carrieracct'] = 'CarrierAcct_Shipping_Method';
+		return $methods;
+	}
+
+
+	add_filter( 'woocommerce_shipping_methods', 'add_carrieracct_shipping_method' );
+
+	// Add custom fields to a specific selected shipping method
+	add_action( 'woocommerce_after_shipping_rate', 'carrier_custom_fields', 20, 2 );
+	function carrier_custom_fields( $method, $index )
+	{
+		if
+		( ! is_checkout()) return; // Only on checkout page
+
+		$customer_carrier_method = 'carrieracct';
+
+		if
+		( $method->id != $customer_carrier_method ) return; // Only display for "local_pickup"
+
+		$chosen_method_id = WC()->session->chosen_shipping_methods[ $index ];
+
+		// If the chosen shipping method is 'legacy_local_pickup' we display
+		if
+		($chosen_method_id == $customer_carrier_method ):
+
+			echo '<div class="custom-carrier" style="width:400px;">';
+
+		woocommerce_form_field( 'carrier_name' , array(
+				'type'          => 'select',
+				'class'         => array('form-row-first carrier-name'),
+				'required'      => true,
+				'options'    => array(
+					'' => __('Select a carrier', carrieracct),
+					'UPS' => __('UPS', carrieracct),
+					'FedEx' => __('FedEx', carrieracct),
+					'DHL' => __('DHL', carrieracct),
+				)
+			), WC()->checkout->get_value( 'carrier_name' ));
+
+		woocommerce_form_field( 'carrier_number' , array(
+				'type'          => 'text',
+				'class'         => array('form-row-last carrier-number'),
+				'required'      => true,
+				'placeholder'   => 'Carrier Number',
+			), WC()->checkout->get_value( 'carrier_number' ));
+
+		echo '</div>';
+		endif;
+	}
+
+
+	// Check custom fields validation
+	add_action('woocommerce_checkout_process', 'carrier_checkout_process');
+	function carrier_checkout_process()
+	{
+		if
+		( isset( $_POST['carrier_name'] ) && empty( $_POST['carrier_name'] ) )
+			wc_add_notice( ( "Missing shipping carrier name." ), "error" );
+
+		if( isset( $_POST['carrier_number'] ) && empty( $_POST['carrier_number'] ) )
+			wc_add_notice( ( "Missing shipping carrier account number." ), "error" );
+	}
+
+
+	// Save custom fields to order meta data
+	add_action( 'woocommerce_checkout_update_order_meta', 'carrier_update_order_meta', 30, 1 );
+	function carrier_update_order_meta( $order_id ) {
+		if( !empty( $_POST['carrier_name'] ))
+			update_post_meta( $order_id, '_carrier_name', sanitize_text_field( $_POST['carrier_name'] ) );
+
+		if( !empty( $_POST['carrier_number'] ))
+			update_post_meta( $order_id, '_carrier_number', sanitize_text_field( $_POST['carrier_number'] ) );
+	}
+	
+	function carrier_display_in_admin( $order ){  ?>
+	        <h3><?php _e( 'Carrier Account' ); ?></h3>
+	        <?php 
+	            echo '<div class=address><p>' . get_post_meta( $order->id, '_carrier_name', true ) . '</br>';
+	            echo '' . get_post_meta( $order->id, '_carrier_number', true ) . '</p></div>'; ?>
+	<?php }
+	add_action( 'woocommerce_admin_order_data_after_shipping_address', 'carrier_display_in_admin' );
+
+
+}
\ No newline at end of file