<?php

/**
 * The public-facing functionality of the plugin.
 *
 * @link       https://www.transparencycanada.ca/
 * @since      1.0.0
 *
 * @package    TICA_News
 * @subpackage TICA_News/public
 */

/**
 * The public-facing functionality of the plugin.
 *
 * Defines the plugin name, version, and two examples hooks for how to
 * enqueue the admin-specific stylesheet and JavaScript.
 *
 * @package    TICA_News
 * @subpackage TICA_News/public
 * @author     Orange35 <info@orange35.com>
 */
class TICA_News_Public {

	/**
	 * The ID of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $plugin_name    The ID of this plugin.
	 */
	private $plugin_name;

	/**
	 * The version of this plugin.
	 *
	 * @since    1.0.0
	 * @access   private
	 * @var      string    $version    The current version of this plugin.
	 */
	private $version;

	/**
	 * Initialize the class and set its properties.
	 *
	 * @since    1.0.0
	 * @param    string    $plugin_name     The name of the plugin.
	 * @param    string    $version         The version of this plugin.
	 */
	public function __construct( $plugin_name, $version ) {

		$this->plugin_name = $plugin_name;
		$this->version = $version;

	}

	/**
	 * Register the stylesheets for the public-facing side of the site.
	 *
	 * @since    1.0.0
	 */
	public function enqueue_styles() {

		/**
		 * This function is provided for demonstration purposes only.
		 *
		 * An instance of this class should be passed to the run() function
		 * defined in TICA_News_Loader as all of the hooks are defined
		 * in that particular class.
		 *
		 * The TICA_News_Loader will then create the relationship
		 * between the defined hooks and the functions defined in this
		 * class.
		 */

		wp_enqueue_style( $this->plugin_name, plugin_dir_url( __FILE__ ) . 'css/tica-news-public.css', array(), $this->version, 'all' );

	}

	/**
	 * Register the JavaScript for the public-facing side of the site.
	 *
	 * @since    1.0.0
	 */
	public function enqueue_scripts() {

		/**
		 * This function is provided for demonstration purposes only.
		 *
		 * An instance of this class should be passed to the run() function
		 * defined in TICA_News_Loader as all of the hooks are defined
		 * in that particular class.
		 *
		 * The TICA_News_Loader will then create the relationship
		 * between the defined hooks and the functions defined in this
		 * class.
		 */

		wp_enqueue_script( $this->plugin_name, plugin_dir_url( __FILE__ ) . 'js/tica-news-public.js', array( 'jquery' ), $this->version, false );

	}

    public function add_back_link( $content ) {

	    global $post;

	    if ( is_single() && TICA_News::POST_TYPE == $post->post_type && $page = TICA_News::get_page() ) {
            $news_back_url = '';
	        $news_page_url = get_permalink( $page );
	        $referrer = wp_get_referer();
	        if ( 0 === strpos( $referrer, $news_page_url ) ) {
                $news_back_url = $referrer;
            } else {
                $cat = wp_get_object_terms(
                    $post->ID,
                    TICA_News::TAXONOMY_NAME,
                    [
                        'meta_key' => TICA_News::TAXONOMY_ORDER_META,
                        'orderby'  => TICA_News::TAXONOMY_ORDER_META,
                        'order'    => 'ASC',
                        'number'   => 1,
                    ]
                );

                if ( ! empty( $cat ) ) {
                    $cat = reset($cat);
                    $news_back_url = $news_page_url . $cat->slug . '/';
                }
            }

	        if ( $news_back_url ) {
                ob_start();
                include plugin_dir_path( __FILE__ ) . 'partials/back-link.php';
                $back_link = ob_get_contents();
                ob_end_clean();
                $content = $back_link . $content;
            }
        }

	    return $content;

    }

    public function add_categories_submenu( $items ) {

	    global $wpdb;

	    $sql = "select post_id from {$wpdb->postmeta} where meta_key='_wp_page_template' and meta_value='template-news.php'";
	    $post_ids = $wpdb->get_col($sql);
	    if ($post_ids) {
            $categories = get_terms( [
                'taxonomy'   => TICA_News::TAXONOMY_NAME,
                'hide_empty' => true,
                'meta_key'   => TICA_News::TAXONOMY_ORDER_META,
                'orderby'    => TICA_News::TAXONOMY_ORDER_META,
                'order'      => 'ASC',
            ] );

            if ( $categories ) {
                $taxonomy = get_taxonomy( TICA_News::TAXONOMY_NAME );
                $base_url = get_site_url() . '/' . ( ( ! empty( $taxonomy->rewrite['slug'] ) ) ? $taxonomy->rewrite['slug'] : $taxonomy->name ) . '/';

                $sub_menu = [];
                foreach ($categories as $cat) {
                    $menu_item = new stdClass();
                    $menu_item->ID = -$cat->term_id;
                    $menu_item->post_status = 'publish';
                    $menu_item->title = $cat->name;
                    $menu_item->object_id = $cat->term_id;
                    $menu_item->url = $base_url . $cat->slug . '/';
                    $menu_item->menu_item_parent = 0;
                    $menu_item->db_id = $cat->term_id;
                    $menu_item->classes = [ '', 'menu-item', 'menu-item-type-post_type', 'menu-item-object-page' ];
                    $sub_menu[] = new WP_Post($menu_item);
                }

                $items = array_values($items);
                $indexes = [];
                $indexes_func = function ( $val, $key ) use ( &$indexes ) { $indexes[$key] = $val->object_id; };
                array_walk( $items, $indexes_func );

                foreach ( $post_ids as $object_id ) {
                    $idx = array_search( $object_id, $indexes );
                    if ( $idx ) {
                        if ( ! in_array( 'menu-item-has-children', $items[$idx]->classes ) ) {
                            $items[$idx]->classes[] = 'menu-item-has-children';
                        }
                        foreach ( $sub_menu as &$sub_menu_item ) {
                            $sub_menu_item->menu_item_parent = $items[$idx]->db_id;
                        }
                        unset( $sub_menu_item );

                        $items = array_merge( array_slice( $items, 0, $idx + 1), $sub_menu, array_slice( $items, $idx + 1 ) );

                        $indexes = [];
                        array_walk( $items, $indexes_func );
                    }
                }

                $_items = [];
                $i = 1;
                foreach ($items as $menu_item) {
                    $menu_item->menu_order = $i;
                    $_items[$i] = $menu_item;
                    $i++;
                }
                $items = $_items;

            }

        }

	    return $items;

    }

    public function layers_breadcrumbs( $crumbs ) {

	    if ( TICA_News::TAXONOMY_NAME == get_query_var( 'taxonomy' ) ) {

	        if ( $page = TICA_News::get_page() ) {
                $link = get_permalink( $page );

                $crumbsCount = count( $crumbs );
                $beforeCount = 1;

                $crumbs = array_slice( $crumbs, 0, $crumbsCount - $beforeCount, true )
                        + [ $page->post_title => [ 'link' => $link, 'label' => $page->post_title ] ]
                        + array_slice( $crumbs, $crumbsCount - $beforeCount, $beforeCount, true );
            }

        }

	    return $crumbs;

    }

    public function paginate_links( $link ) {
	    $page_pattern = '/page/1';
	    if ( false !== strpos( $link, $page_pattern ) ) {
	        $link = str_replace( $page_pattern, '', $link );
        }
	    return $link;
    }

    public function filter_title( $title ) {
	    $page = $page = TICA_News::get_page();
		if ( ! is_single() && get_the_ID() == $page->ID ) {
			$category_slug = get_query_var( TICA_News::TAXONOMY_NAME );
			if ( $category_slug ) {
				$term = get_term_by( 'slug', $category_slug, TICA_News::TAXONOMY_NAME );
				if ( $term ) {
					$title['title'] = $term->name;
				}
			}
		}
		return $title;
    }

}