<?php

namespace Woocommerce_Preorders;

class Tabs {

	public function __construct() {
		// Variations tab
		add_action( 'woocommerce_product_after_variable_attributes', [$this, 'customVariationsFields'], 10, 3 ); // After all Variation fields

		// Inventory tab
		add_action( 'woocommerce_product_options_stock_status', [$this, 'customSimpleFields'] );

		add_action( 'woocommerce_save_product_variation', [$this, 'customVariationsFieldsSave'], 10, 2 );
		add_action( 'woocommerce_process_product_meta', [$this, 'customSimpleFieldsSave'], 10, 2 );
	}

	/**
	 * Add our Custom Fields to variable products
	 * @param $loop
	 * @param $variation_data
	 * @param $variation
	 */
	public function customVariationsFields( $loop, $variation_data, $variation ) {
		echo '<div class="options_group form-row form-row-full">';
		woocommerce_wp_checkbox(
			[
				'id'          => '_is_pre_order_' . $variation->ID,
				'label'       => __( 'Pre Order Product', 'pre-orders-for-woocommerce' ),
				'description' => __( ' Check this if you want to offer this product as pre-order', 'pre-orders-for-woocommerce' ),
				'value'       => get_post_meta( $variation->ID, '_is_pre_order', true ),
			]
		);

		woocommerce_wp_text_input(
			[
				'id'          => '_pre_order_date_' . $variation->ID,
				'label'       => __( 'Pre Order Date', 'pre-orders-for-woocommerce' ),
				'placeholder' => date( 'Y-m-d h:i:s' ),
				'class'       => 'datepicker',
				'desc_tip'    => true,
				'description' => __( 'Choose when the product will be available.', 'pre-orders-for-woocommerce' ),
				'value'       => get_post_meta( $variation->ID, '_pre_order_date', true ),
			]
		);

		echo '</div>';
	}

	/**
	 * Save our variable product fields
	 *
	 * @param $post_id
	 */
	public function customVariationsFieldsSave( $post_id ) {
		// $variation_id = $_POST['variable_post_id'][array_keys($_POST['variable_post_id'])[0]];
		$product = wc_get_product( $post_id );

		$is_pre_order_variation = isset( $_POST['_is_pre_order_' . $post_id] ) ? 'yes' : 'no';
		$product->update_meta_data( '_is_pre_order', $is_pre_order_variation );

		if ( $is_pre_order_variation == 'yes' ) {
			$pre_order_date_value = esc_html( $_POST['_pre_order_date_' . $post_id] );
			$product->update_meta_data( '_pre_order_date', esc_attr( $pre_order_date_value ) );
		}

		$product->save();
	}

	public function customSimpleFields() {
		echo '<div class="options_group form-row form-row-full hide_if_variable">';
		woocommerce_wp_checkbox(
			[
				'id'          => '_is_pre_order',
				'label'       => __( 'Pre Order Product', 'pre-orders-for-woocommerce' ),
				'description' => __( ' Check this if you want to offer this product as pre-order', 'pre-orders-for-woocommerce' ),
				'value'       => get_post_meta( get_the_ID(), '_is_pre_order', true ),
			]
		);

		woocommerce_wp_text_input(
			array(
				'id'          => '_pre_order_date',
				'label'       => __( 'Pre Order Date', 'pre-orders-for-woocommerce' ),
				'placeholder' => date( 'Y-m-d h:i:s' ),
				'class'       => 'datepicker',
				'desc_tip'    => true,
				'description' => __( "Choose when the product will be available.", "preorders" ),
				'value'       => get_post_meta( get_the_ID(), '_pre_order_date', true ),
			)
		);

		echo '</div>';
		echo '<div class="options_group form-row form-row-full hide_if_simple">';
		?>
		<div class="preorder-variable-notice notice-info">
			<p>Pre-Order options are available under each variation <a href="https://brightplugins.com/docs/how-to-add-preorder-feature-into-a-variable-product/" target="_blank">Read More</a></p>
		</div>
		<?php

		echo '</div>';
	}

	/**
	 * @param $post_id
	 */
	public function customSimpleFieldsSave( $post_id ) {
		$product      = wc_get_product( $post_id );
		$is_pre_order = isset( $_POST['_is_pre_order'] ) ? 'yes' : 'no';
		$product->update_meta_data( '_is_pre_order', $is_pre_order );

		if ( $is_pre_order == 'yes' ) {
			$pre_order_date_value = esc_html( $_POST['_pre_order_date'] );
			$product->update_meta_data( '_pre_order_date', esc_attr( $pre_order_date_value ) );
		} else {
			$product->update_meta_data( '_pre_order_date', '' );
		}

		$product->save();
	}
}