<?php

namespace Webmention;

/**
 * Undocumented class
 */
class Comment {
	/**
	 * Initialize the plugin, registering WordPress hooks
	 *
	 * @return void
	 */
	public static function init() {
		self::register_comment_types();

		add_filter( 'query_vars', array( static::class, 'query_var' ) );

		// Threaded comments support
		add_filter( 'template_include', array( static::class, 'comment_template_include' ) );

		add_filter( 'get_comment_link', array( static::class, 'remote_comment_link' ), 11, 2 );
	}

	/**
	 * Link remote comments to source url.
	 *
	 * @param string            $comment_link The comment link.
	 * @param object|WP_Comment $comment      The comment object.
	 *
	 * @return string $url The url of the source.
	 */
	public static function remote_comment_link( $comment_link, $comment ) {
		if ( is_admin() || ! is_webmention( $comment ) ) {
			return $comment_link;
		}

		$webmention_link = get_url_from_webmention( $comment );

		if ( $webmention_link ) {
			return $webmention_link;
		}

		return $comment_link;
	}

	/**
	 * Return the registered custom comment types.
	 *
	 * @return array The registered custom comment types
	 */
	public static function get_comment_types() {
		global $webmention_comment_types;

		return $webmention_comment_types;
	}

	/**
	 * Is this a registered comment type
	 *
	 * @param string $slug The name of the type
	 * @return boolean True if registered.
	 */
	public static function is_registered_comment_type( $slug ) {
		return in_array( $slug, array_merge( self::get_comment_type_names(), array( 'comment', 'pingback', 'trackback' ) ), true );
	}

	/**
	 * Return the registered custom comment types names plus Webmention for backcompat.
	 *
	 * @return array The registered custom comment type names
	 */
	public static function get_comment_type_names() {
		$types   = array_values( wp_list_pluck( self::get_comment_types(), 'name' ) );
		$types[] = 'webmention';

		return $types;
	}

	public static function get_comment_type_attr( $type, $attr ) {
		$types = self::get_comment_types();

		if ( in_array( $type, array_keys( $types ), true ) ) {
			$comment_type = $types[ $type ];
		} else {
			$comment_type = $types['mention'];
		}

		$return = $comment_type->get( $attr );

		return apply_filters( "webmention_comment_type_{$attr}", $return, $type );
	}

	/**
	 * Register the comment types used by the Webmention plugin
	 *
	 * @return void
	 */
	public static function register_comment_types() {
		register_webmention_comment_type(
			'repost',
			array(
				'label'       => __( 'Reposts', 'webmention' ),
				'singular'    => __( 'Repost', 'webmention' ),
				'description' => __( 'A repost on the indieweb is a post that is purely a 100% re-publication of another (typically someone else\'s) post.', 'webmention' ),
				'icon'        => '♻️',
				'class'       => 'p-repost',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s reposted %2$s on <a href="%3$s">%4$s</a>.', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'like',
			array(
				'label'       => __( 'Likes', 'webmention' ),
				'singular'    => __( 'Like', 'webmention' ),
				'description' => __( 'A like is a popular webaction button and in some cases post type on various silos such as Facebook and Instagram.', 'webmention' ),
				'icon'        => '👍',
				'class'       => 'p-like',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s liked %2$s on <a href="%3$s">%4$s</a>.', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'favorite',
			array(
				'label'       => __( 'Favorites', 'webmention' ),
				'singular'    => __( 'Favorite', 'webmention' ),
				'description' => __( 'A favorite is a common webaction on many silos (like Flickr, Twitter), typically visually indicated with a star symbol that fills in with a color when activated (pink, orange).', 'webmention' ),
				'icon'        => '⭐',
				'class'       => 'p-favorite',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s favorited %2$s on <a href="%3$s">%4$s</a>.', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'tag',
			array(
				'label'       => __( 'Tags', 'webmention' ),
				'singular'    => __( 'Tag', 'webmention' ),
				'description' => __( 'Tags or tagging refers to categorizing or labeling content, your own or others (tag-reply), with words, phrases, names, or other information, optionally linked to specific people, events, locations, such as the practice of tagging posts being about certain people (person-tag), like tagging people or other items where (area-tag) they\'re depicted in a photo.', 'webmention' ),
				'icon'        => '📌',
				'class'       => 'p-tag',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s tagged %2$s on <a href="%3$s">%4$s</a>.', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'bookmark',
			array(
				'label'       => __( 'Bookmarks', 'webmention' ),
				'singular'    => __( 'Bookmark', 'webmention' ),
				'description' => __( 'A bookmark (or linkblog) is a post that is primarily comprised of a URL, often title text from that URL, sometimes optional text describing, tagging, or quoting from its contents.', 'webmention' ),
				'icon'        => '🔖',
				'class'       => 'p-bookmark',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s bookmarked %2$s on <a href="%3$s">%4$s</a>.', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'listen',
			array(
				'label'       => __( 'Listens', 'webmention' ),
				'singular'    => __( 'Listen', 'webmention' ),
				'description' => __( 'A "listen" is a passive type of post used to publish a song (music or audio track, including concert recordings or DJ sets) or podcast that you have listened to.', 'webmention' ),
				'icon'        => '🎧',
				'class'       => 'p-listen',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s <strong>listened</strong> to %2$s (via <a href="%3$s">%4$s</a>).', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'watch',
			array(
				'label'       => __( 'Watches', 'webmention' ),
				'singular'    => __( 'Watch', 'webmention' ),
				'description' => __( 'A watch is a semi-passive type of post used to publish that you have watched a video (movie, TV, film), or a live show (theater, concert).', 'webmention' ),
				'icon'        => '📺',
				'class'       => 'p-watch',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s <strong>watched</strong> %2$s (via <a href="%3$s">%4$s</a>).', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'read',
			array(
				'label'       => __( 'Reads', 'webmention' ),
				'singular'    => __( 'Read', 'webmention' ),
				'icon'        => '📖',
				'class'       => 'p-read',
				'description' => __( 'To read or reading is the act of viewing and interpreting posts or other documents; on the IndieWeb, a read post expresses that something has been read, like a book or section thereof.', 'webmention' ),
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s <strong>read</strong> %2$s (via <a href="%3$s">%4$s</a>).', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'follow',
			array(
				'label'       => __( 'Follows', 'webmention' ),
				'singular'    => __( 'Follow', 'webmention' ),
				'description' => __( 'Follow is a common feature (and often UI button) in silo UIs (like Twitter) that adds updates from that profile (typically a person) to the stream shown in an integrated reader, and sometimes creates a follow post either in the follower\'s stream ("… followed …" or "… is following …") thus visible to their followers, and/or in the notifications of the user being followed ("… followed you").', 'webmention' ),
				'icon'        => '👣',
				'class'       => 'p-follow',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s <strong>followed</strong> %2$s (via <a href="%3$s">%4$s</a>).', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'mention',
			array(
				'label'       => __( 'Mentions', 'webmention' ),
				'singular'    => __( 'Mention', 'webmention' ),
				'description' => __( 'A mention is a post which links to another post without explicitly being in response to it. In contrast, a reply, like, or repost are explicit responses to a post.', 'webmention' ),
				'icon'        => '💬',
				'class'       => 'p-mention',
				// translators: %1$s username, %2$s opject format (post, audio, ...), %3$s URL, %4$s domain
				'excerpt'     => __( '%1$s <strong>mentioned</strong> %2$s on <a href="%3$s">%4$s</a>.', 'webmention' ),
			)
		);

		register_webmention_comment_type(
			'reacji',
			array(
				'label'       => __( 'Reacjis', 'webmention' ),
				'singular'    => __( 'Reacji', 'webmention' ),
				'description' => __( 'Reacji is an emoji reaction, the use of a single emoji character in response to a post.', 'webmention' ),
				'class'       => 'p-reacji',
				'excerpt'     => '%s',
			)
		);
	}

	/**
	 * replace the template for all URLs with a "replytocom" query-param
	 *
	 * @param string $template the template url
	 *
	 * @return string
	 */
	public static function comment_template_include( $template ) {
		global $wp_query;

		// replace template
		if ( isset( $wp_query->query['replytocom'] ) ) {
			return apply_filters( 'webmention_comment_template', __DIR__ . '/../templates/webmention-comment.php' );
		}

		return $template;
	}

	/**
	 * adds some query vars
	 *
	 * @param array $vars
	 *
	 * @return array
	 */
	public static function query_var( $vars ) {
		$vars[] = 'replytocom';
		return $vars;
	}
}