bbp_get_user_subscribe_link( mixed $args = '', int $user_id, bool $wrap = true )

	function bbp_get_user_subscribe_link( $args = '', $user_id = 0, $wrap = true ) {
		if ( ! bbp_is_subscriptions_active() ) {
			return;
		}

		// Parse arguments against default values
		$r = bbp_parse_args( $args, array(
			'subscribe'   => __( 'Subscribe',   'buddyboss' ),
			'unsubscribe' => __( 'Unsubscribe', 'buddyboss' ),
			'user_id'     => 0,
			'topic_id'    => 0,
			'forum_id'    => 0,
			'before'      => ' | ',
			'after'       => ''
		), 'get_user_subscribe_link' );

		// Validate user and object ID's
		$user_id  = bbp_get_user_id( $r['user_id'], true, true );
		$topic_id = bbp_get_topic_id( $r['topic_id'] );
		$forum_id = bbp_get_forum_id( $r['forum_id'] );
		if ( empty( $user_id ) || ( empty( $topic_id ) && empty( $forum_id ) ) ) {
			return false;
		}

		// No link if you can't edit yourself
		if ( ! current_user_can( 'edit_user', (int) $user_id ) ) {
			return false;
		}

		// Check if viewing a single forum
		if ( empty( $topic_id ) && ! empty( $forum_id ) ) {

			// Decide which link to show
			$is_subscribed = bbp_is_user_subscribed_to_forum( $user_id, $forum_id );
			if ( ! empty( $is_subscribed ) ) {
				$text       = $r['unsubscribe'];
				$query_args = array( 'action' => 'bbp_unsubscribe', 'forum_id' => $forum_id );
			} else {
				$text       = $r['subscribe'];
				$query_args = array( 'action' => 'bbp_subscribe',   'forum_id' => $forum_id );
			}

			// Create the link based where the user is and if the user is
			// subscribed already
			if ( bbp_is_subscriptions() ) {
				$permalink = bbp_get_subscriptions_permalink( $user_id );
			} elseif ( bbp_is_single_forum() || bbp_is_single_reply() ) {
				$permalink = bbp_get_forum_permalink( $forum_id );
			} else {
				$permalink = get_permalink();
			}

			$url  = esc_url( wp_nonce_url( add_query_arg( $query_args, $permalink ), 'toggle-subscription_' . $forum_id ) );
			$sub  = $is_subscribed ? ' class="is-subscribed"' : '';
			$html = sprintf( '%s<span id="subscribe-%d"  %s><a href="%s" class="subscription-toggle" data-forum="%d">%s</a></span>%s', $r['before'], $forum_id, $sub, $url, $forum_id, $text, $r['after'] );

			// Initial output is wrapped in a span, ajax output is hooked to this
			if ( !empty( $wrap ) ) {
				$html = '<span id="subscription-toggle">' . $html . '</span>';
			}

		} else {

			// Decide which link to show
			$is_subscribed = bbp_is_user_subscribed_to_topic( $user_id, $topic_id );
			if ( ! empty( $is_subscribed ) ) {
				$text       = $r['unsubscribe'];
				$query_args = array( 'action' => 'bbp_unsubscribe', 'topic_id' => $topic_id );
			} else {
				$text       = $r['subscribe'];
				$query_args = array( 'action' => 'bbp_subscribe',   'topic_id' => $topic_id );
			}

			// Create the link based where the user is and if the user is
			// subscribed already
			if ( bbp_is_subscriptions() ) {
				$permalink = bbp_get_subscriptions_permalink( $user_id );
			} elseif ( bbp_is_single_topic() || bbp_is_single_reply() ) {
				$permalink = bbp_get_topic_permalink( $topic_id );
			} else {
				$permalink = get_permalink();
			}

			$url  = esc_url( wp_nonce_url( add_query_arg( $query_args, $permalink ), 'toggle-subscription_' . $topic_id ) );
			$sub  = $is_subscribed ? ' class="is-subscribed"' : '';
			$html = sprintf( '%s<span id="subscribe-%d"  %s><a href="%s" class="subscription-toggle" data-topic="%d">%s</a></span>%s', $r['before'], $topic_id, $sub, $url, $topic_id, $text, $r['after'] );

			// Initial output is wrapped in a span, ajax output is hooked to this
			if ( !empty( $wrap ) ) {
				$html = '<span id="subscription-toggle">' . $html . '</span>';
			}
		}

		// Return the link
		return apply_filters( 'bbp_get_user_subscribe_link', $html, $r, $user_id, $topic_id );
	}