<?php

/**
 * The public-facing functionality of the plugin.
 *
 * @link          https://plugins360.com
 * @since         1.0.0
 *
 * @package       AIOVG
 * @subpackage    AIOVG/public
 */

// Exit if accessed directly
if ( ! defined( 'WPINC' ) ) {
	die;
}

/**
 * AIOVG_Public class.
 *
 * @since    1.0.0
 */
class AIOVG_Public {
	
	/**
	 * Add rewrite rules.
	 *
	 * @since    1.0.0
	 */
	public function add_rewrites() {

		$page_settings = get_option( 'aiovg_page_settings' );
		$url = home_url();
		
		// Single category page
		$id = $page_settings['category'];
		if ( $id > 0 ) {
			$link = str_replace( $url, '', get_permalink( $id ) );			
			$link = trim( $link, '/' );		
			
			add_rewrite_rule( "$link/([^/]+)/page/?([0-9]{1,})/?$", 'index.php?page_id=' . $id . '&aiovg_category=$matches[1]&paged=$matches[2]', 'top' );
			add_rewrite_rule( "$link/([^/]+)/?$", 'index.php?page_id=' . $id . '&aiovg_category=$matches[1]', 'top' );
		}
		
		// User videos page
		$id = $page_settings['user_videos'];
		if ( $id > 0 ) {
			$link = str_replace( $url, '', get_permalink( $id ) );			
			$link = trim( $link, '/' );		
			
			add_rewrite_rule( "$link/([^/]+)/page/?([0-9]{1,})/?$", 'index.php?page_id=' . $id . '&aiovg_user=$matches[1]&paged=$matches[2]', 'top' );
			add_rewrite_rule( "$link/([^/]+)/?$", 'index.php?page_id=' . $id . '&aiovg_user=$matches[1]', 'top' );
		}
		
		// Player page
		$id = $page_settings['player'];
		if ( $id > 0 ) {
			$link = str_replace( $url, '', get_permalink( $id ) );			
			$link = trim( $link, '/' );		
			
			add_rewrite_rule( "$link/id/([^/]+)/?$", 'index.php?page_id=' . $id . '&aiovg_type=id&aiovg_video=$matches[1]', 'top' );
		}
		
		// Rewrite tags
		add_rewrite_tag( '%aiovg_category%', '([^/]+)' );
		add_rewrite_tag( '%aiovg_user%', '([^/]+)' );
		add_rewrite_tag( '%aiovg_type%', '([^/]+)' );
		add_rewrite_tag( '%aiovg_video%', '([^/]+)' );
	
	}
	
	/**
	 * Flush rewrite rules when it's necessary.
	 *
	 * @since    1.0.0
	 */
	 public function maybe_flush_rules() {

		$rewrite_rules = get_option( 'rewrite_rules' );
				
		if ( $rewrite_rules ) {
		
			global $wp_rewrite;
			
			foreach ( $rewrite_rules as $rule => $rewrite ) {
				$rewrite_rules_array[ $rule ]['rewrite'] = $rewrite;
			}
			$rewrite_rules_array = array_reverse( $rewrite_rules_array, true );
		
			$maybe_missing = $wp_rewrite->rewrite_rules();
			$missing_rules = false;		
		
			foreach ( $maybe_missing as $rule => $rewrite ) {
				if ( ! array_key_exists( $rule, $rewrite_rules_array ) ) {
					$missing_rules = true;
					break;
				}
			}
		
			if ( true === $missing_rules ) {
				flush_rewrite_rules();
			}
		
		}
	
	}
	
	/**
	 * Register the stylesheets for the public-facing side of the site.
	 *
	 * @since    1.0.0
	 */
	public function enqueue_styles() {

		$general_settings = get_option( 'aiovg_general_settings' );
		
		$deps = array();
		
		if ( isset( $general_settings['bootstrap']['css'] ) ) {
			wp_register_style( AIOVG_PLUGIN_SLUG . '-bootstrap', AIOVG_PLUGIN_URL . 'public/assets/css/bootstrap.css', array(), '3.3.7', 'all' );
			$deps[] = AIOVG_PLUGIN_SLUG . '-bootstrap';
		}
		
		if ( ! empty( $general_settings['fontawesome'] ) ) {
			wp_register_style( AIOVG_PLUGIN_SLUG . '-fontawesome', AIOVG_PLUGIN_URL . 'public/assets/css/font-awesome.min.css', array(), '4.7.0', 'all' );
			$deps[] = AIOVG_PLUGIN_SLUG . '-fontawesome';
		}
		
		wp_register_style( AIOVG_PLUGIN_SLUG . '-magnific-popup', AIOVG_PLUGIN_URL . 'public/assets/css/magnific-popup.css', array(), '1.1.0', 'all' );
		wp_register_style( AIOVG_PLUGIN_SLUG, AIOVG_PLUGIN_URL . 'public/assets/css/aiovg-public.css', $deps, AIOVG_PLUGIN_VERSION, 'all' );		

	}

	/**
	 * Register the JavaScript for the public-facing side of the site.
	 *
	 * @since    1.0.0
	 */
	public function enqueue_scripts() {
	
		wp_register_script( AIOVG_PLUGIN_SLUG . '-magnific-popup', AIOVG_PLUGIN_URL . 'public/assets/js/magnific-popup.min.js', array( 'jquery' ), '1.1.0', false );
		wp_register_script( AIOVG_PLUGIN_SLUG, AIOVG_PLUGIN_URL . 'public/assets/js/aiovg-public.js', array( 'jquery' ), AIOVG_PLUGIN_VERSION, false );
		
	}
	
	/**		 
	 * Override the default page/post title.
	 *		
	 * @since     1.0.0
	 * @param     string    $title          The document title.	 
     * @param     string    $sep            Title separator.
     * @param     string    $seplocation    Location of the separator (left or right).		 
	 * @return    string                    The filtered title.		 
	*/
	public function wp_title( $title, $sep, $seplocation ) {
		
		global $post;
		
		if ( ! isset( $post ) ) return $title;
		
		$page_settings = get_option( 'aiovg_page_settings' );
		$site_name     = get_bloginfo( 'name' );
		$custom_title  = '';		
		
		// Get category page title
		if ( $post->ID == $page_settings['category'] ) {
			
			if ( $slug = get_query_var( 'aiovg_category' ) ) {
				$term = get_term_by( 'slug', $slug, 'aiovg_categories' );
				$custom_title = $term->name;			
			}
				
		}
		
		// Get user videos page title
		if ( $post->ID == $page_settings['user_videos'] ) {
		
			if ( $slug = get_query_var( 'aiovg_user' ) ) {
				$user = get_user_by( 'slug', $slug );
				$custom_title = $user->display_name;		
			}
			
		}
		
		// ...
		if ( ! empty( $custom_title ) ) {
			$title = ( 'left' == $seplocation ) ? "$site_name $sep $custom_title" : "$custom_title $sep $site_name";
		}
		
		return $title;
		
	}
	
	/**
	 * Fix conflict with the YOAST plugin when updating the page/post title.
	 *
	 * @since     1.0.0
	 * @param     array    $title    The document title.
	 * @return                       Filtered title.
	 */
	public function pre_get_document_title( $title ) {
	
		global $post;
		
		if ( ! isset( $post ) ) return $title;
		
		$page_settings = get_option( 'aiovg_page_settings' );
		
		if ( in_array( $post->ID, array( $page_settings['category'], $page_settings['user_videos'] ) ) ) {
			$title = '';
		}
		
		return $title;
	
	}
	
	/**
	 * Override the default post/page title depending on the AIOVG view.
	 *
	 * @since     1.0.0
	 * @param     array    $title    The document title parts.
	 * @return                       Filtered title parts.
	 */
	public function document_title_parts( $title ) {
	
		global $post;
		
		if ( ! isset( $post ) ) return $title;
		
		$page_settings = get_option( 'aiovg_page_settings' );
		
		// Get category page title
		if ( $post->ID == $page_settings['category'] ) {
			
			if ( $slug = get_query_var( 'aiovg_category' ) ) {
				$term = get_term_by( 'slug', $slug, 'aiovg_categories' );
				$title['title'] = $term->name;			
			}
				
		}
		
		// Get user videos page title
		if ( $post->ID == $page_settings['user_videos'] ) {
		
			if ( $slug = get_query_var( 'aiovg_user' ) ) {
				$user = get_user_by( 'slug', $slug );
				$title['title'] = $user->display_name;		
			}
			
		}
		
		// Return
		return $title;
	
	}
	
	/**
	 * Adds the Facebook OG tags and Twitter Cards.
	 *
	 * @since    1.0.0
	 */
	public function og_metatags() {
	
		global $post;
			
		if ( isset( $post ) && is_singular( 'aiovg_videos' ) ) {
			
			printf( '<meta property="og:url" content="%s" />', get_permalink() );
			echo '<meta property="og:type" content="article" />';	
			printf( '<meta property="og:title" content="%s" />', get_the_title() );
			if ( ! empty( $post->post_content ) ) printf( '<meta property="og:description" content="%s" />', aiovg_get_excerpt() );
			
			$image = get_post_meta( $post->ID, 'image', true );
			$image_id = get_post_meta( $post->ID, 'image_id', true );
			
			$image = aiovg_get_image_url( $image_id, 'large', $image, 'player' );						
			if ( ! empty( $image ) ) printf( '<meta property="og:image" content="%s" />', $image );
				
			printf( '<meta property="og:site_name" content="%s" />', get_bloginfo( 'name' ) );
			echo '<meta name="twitter:card" content="summary">';
				
		}
		
	}
	
	/**
	 * Change the current page title if applicable.
	 *
	 * @since     1.0.0
	 * @param	  string    $title    Current page title.
	 * @return    string    $title    Modified page title.
	 */
	public function the_title( $title ) {

		if ( ! in_the_loop() || ! is_main_query() ) {
			return $title;
		}
		
		global $post;
		
		$page_settings = get_option( 'aiovg_page_settings' );
		
		// Change category page title
		if ( $post->ID == $page_settings['category'] ) {
		
			if ( $slug = get_query_var( 'aiovg_category' ) ) {
				$term = get_term_by( 'slug', $slug, 'aiovg_categories' );
				$title = $term->name;			
			}
			
		}
		
		// Change search page title
		if ( $post->ID == $page_settings['search'] ) {
		
			$queries = array();
			
			if ( ! empty( $_GET['vi'] ) ) {
				$queries[] = sanitize_text_field( $_GET['vi'] );				
			}
			
			if ( ! empty( $_GET['ca'] ) ) {
				$term = get_term_by( 'id', (int) $_GET['ca'], 'aiovg_categories' );
				$queries[] = $term->name;				
			}
			
			if ( ! empty( $queries ) ) {
				$title = sprintf( __( 'Showing results for "%s"', 'all-in-one-video-gallery' ), implode( ', ', $queries ) );	
			}
			
		}
		
		// Change user videos page title
		if ( $post->ID == $page_settings['user_videos'] ) {
		
			if ( $slug = get_query_var( 'aiovg_user' ) ) {
				$user = get_user_by( 'slug', $slug );
				$title = $user->display_name;		
			}
			
		}
		
		return $title;
	
	}

	/**
	 * Always use our custom page for AIOVG categories.
	 *
	 * @since     1.0.0
	 * @param     string    $url         The term URL.
	 * @param     object    $term        The term object.
	 * @param     string    $taxonomy    The taxonomy slug.
	 * @return    string    $url         Filtered term URL.
	 */
	public function term_link( $url, $term, $taxonomy ) {
	
		if ( 'aiovg_categories' == $taxonomy ) {
			$url = aiovg_get_category_page_url( $term );
		}
		
		return $url;
		
	}

}