<?php
/*Plugin Name: Muti Category
Plugin URI: https://mythuatweb.com/
Description: Show muti category for products
Author: tritigi@gmail.com
Version: 1.0
Author URI: https://mythuatweb.com/
Text Domain: mtw-muticat
*/


if(!class_exists('mtw_muti_category')) {
class mtw_muti_category
{
	function __construct() 
	{
		$name = dirname ( plugin_basename ( __FILE__ ) );
		$this->pluginurl = WP_PLUGIN_URL . "/$name/";
		$this->pluginpath = WP_PLUGIN_DIR . "/$name/";
		
		add_action('admin_menu', array( &$this,'mtw_muti_category_create_menu')); 
		
		add_action( 'wp_footer', array( &$this, 'resiter_scripts_and_styles') );
		
		add_action( 'woocommerce_after_single_product_summary', array(&$this,"get_list_category_from_detail"));
		
	}
	
	function register_mysettings()
	{
        register_setting( 'csrf_mtw_muticat', 'mtw_muticat_name' );
	}

	function mtw_muti_category_create_menu() 
	{
        add_menu_page('Muti Category For Product', 'Muti Category', 'administrator', "mtw-muti-category", array(&$this,'mtw_muti_category_settings_page'),"dashicons-menu", 10);
	}
	
	//show form page for plugin
	function mtw_muti_category_settings_page(){
		include $this->pluginpath."mtw-muticat-options.php";
	}
	
	//3. Phan hien thi ra bên ngoài
	function resiter_scripts_and_styles()
	{
		wp_register_style( 'muti_category' , $this->pluginurl.'css/style.css');
		wp_enqueue_style( 'muti_category' );
	}
	
	function get_list_category_from_detail()
	{
		global $product, $post;
	
		$number_product = get_option( 'mtw_muticat_name' );
		
		$arr_catid = $product->get_category_ids();
		foreach ($arr_catid as $catid):
			$args = array(
				'post_type'             => 'product',
				'post_status'           => 'publish',
				//'ignore_sticky_posts'   => 1,
				'posts_per_page'        => $number_product,
				'tax_query'             => array(
											array(
												'taxonomy'      => 'product_cat',
												'field' 		=> 'term_id', 	//This is optional, as it defaults to 'term_id'
												'terms'         => $catid,
												'operator'      => 'IN' 		// Possible values are 'IN', 'NOT IN', 'AND'.
											),
											array(
												'taxonomy'      => 'product_visibility',
												'field'         => 'slug',
												'terms'         => 'exclude-from-catalog', // Possibly 'exclude-from-search' too
												'operator'      => 'NOT IN'
											),
										),
				'orderby' => 'rand',
				'order' => 'ASC'
			);
			
			$products = new WP_Query($args);	
			
			//Lay thông tin category
			$catname = get_the_category_by_ID($catid);
			$catlink = get_category_link($catid);
	
			if ( $products->have_posts() ) :
	
				
		?>
				<section class="relate_products">
					<h2><a href="<?php echo $catlink;?>"><?php echo $catname;?></a></h2>
		<?php
					woocommerce_product_loop_start();
					while ($products->have_posts() ) {
						$products->the_post();		
									
						wc_get_template_part( 'content', 'product' ); 						
									
					}		
					woocommerce_product_loop_end();		
		?>
				</section>
		<?php
				
				
			endif;
			
		endforeach;
	
	}
	
}
}

//load plugin
function mtw_muti_category_load(){
	global $muti_category;
	$muti_category = new mtw_muti_category();
}
add_action( 'plugins_loaded', 'mtw_muti_category_load' );
?>