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wp/wp-content/plugins/woocommerce/includes/shipping/flat-rate/includes/settings-flat-rate.php

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+<?php
+/**
+ * Settings for flat rate shipping.
+ *
+ * @package WooCommerce\Classes\Shipping
+ */
+
+defined( 'ABSPATH' ) || exit;
+
+$cost_desc = __( 'Enter a cost (excl. tax) or sum, e.g. <code>10.00 * [qty]</code>.', 'woocommerce' ) . '<br/><br/>' . __( 'Use <code>[qty]</code> for the number of items, <br/><code>[cost]</code> for the total cost of items, and <code>[fee percent="10" min_fee="20" max_fee=""]</code> for percentage based fees.', 'woocommerce' );
+
+$settings = array(
+	'title'      => array(
+		'title'       => __( 'Method title', 'woocommerce' ),
+		'type'        => 'text',
+		'description' => __( 'This controls the title which the user sees during checkout.', 'woocommerce' ),
+		'default'     => __( 'Flat rate', 'woocommerce' ),
+		'desc_tip'    => true,
+	),
+	'tax_status' => array(
+		'title'   => __( 'Tax status', 'woocommerce' ),
+		'type'    => 'select',
+		'class'   => 'wc-enhanced-select',
+		'default' => 'taxable',
+		'options' => array(
+			'taxable' => __( 'Taxable', 'woocommerce' ),
+			'none'    => _x( 'None', 'Tax status', 'woocommerce' ),
+		),
+	),
+	'cost'       => array(
+		'title'             => __( 'Cost', 'woocommerce' ),
+		'type'              => 'text',
+		'placeholder'       => '',
+		'description'       => $cost_desc,
+		'default'           => '0',
+		'desc_tip'          => true,
+		'sanitize_callback' => array( $this, 'sanitize_cost' ),
+	),
+);
+
+$shipping_classes = WC()->shipping()->get_shipping_classes();
+
+if ( ! empty( $shipping_classes ) ) {
+	$settings['class_costs'] = array(
+		'title'       => __( 'Shipping class costs', 'woocommerce' ),
+		'type'        => 'title',
+		'default'     => '',
+		/* translators: %s: URL for link. */
+		'description' => sprintf( __( 'These costs can optionally be added based on the <a href="%s">product shipping class</a>.', 'woocommerce' ), admin_url( 'admin.php?page=wc-settings&tab=shipping&section=classes' ) ),
+	);
+	foreach ( $shipping_classes as $shipping_class ) {
+		if ( ! isset( $shipping_class->term_id ) ) {
+			continue;
+		}
+		$settings[ 'class_cost_' . $shipping_class->term_id ] = array(
+			/* translators: %s: shipping class name */
+			'title'             => sprintf( __( '"%s" shipping class cost', 'woocommerce' ), esc_html( $shipping_class->name ) ),
+			'type'              => 'text',
+			'placeholder'       => __( 'N/A', 'woocommerce' ),
+			'description'       => $cost_desc,
+			'default'           => $this->get_option( 'class_cost_' . $shipping_class->slug ), // Before 2.5.0, we used slug here which caused issues with long setting names.
+			'desc_tip'          => true,
+			'sanitize_callback' => array( $this, 'sanitize_cost' ),
+		);
+	}
+
+	$settings['no_class_cost'] = array(
+		'title'             => __( 'No shipping class cost', 'woocommerce' ),
+		'type'              => 'text',
+		'placeholder'       => __( 'N/A', 'woocommerce' ),
+		'description'       => $cost_desc,
+		'default'           => '',
+		'desc_tip'          => true,
+		'sanitize_callback' => array( $this, 'sanitize_cost' ),
+	);
+
+	$settings['type'] = array(
+		'title'   => __( 'Calculation type', 'woocommerce' ),
+		'type'    => 'select',
+		'class'   => 'wc-enhanced-select',
+		'default' => 'class',
+		'options' => array(
+			'class' => __( 'Per class: Charge shipping for each shipping class individually', 'woocommerce' ),
+			'order' => __( 'Per order: Charge shipping for the most expensive shipping class', 'woocommerce' ),
+		),
+	);
+}
+
+return $settings;