.1.0 bbPress (r3653)
 *
 * @todo Links and filter
 */
function bbp_topic_row_actions() {
	do_action( 'bbp_topic_row_actions' );
}

/**
 * Output value of topic tags field
 *
 * @since 2.0.0 bbPress (r2976)
 */
function bbp_form_topic_tags() {
	echo bbp_get_form_topic_tags();
}
	/**
	 * Return value of topic tags field
	 *
	 * @since 2.0.0 bbPress (r2976)
	 *
	 * @return string Value of topic tags field
	 */
	function bbp_get_form_topic_tags() {

		// Default return value
		$topic_tags = '';

		// Get _POST data
		if ( ( bbp_is_topic_form_post_request() || bbp_is_reply_form_post_request() ) && isset( $_POST['bbp_topic_tags'] ) ) {
			$topic_tags = wp_unslash( $_POST['bbp_topic_tags'] );

		// Get edit data
		} elseif ( bbp_is_single_topic() || bbp_is_single_reply() || bbp_is_topic_edit() || bbp_is_reply_edit() ) {

			// Determine the topic id based on the post type
			switch ( get_post_type() ) {

				// Post is a topic
				case bbp_get_topic_post_type() :
					$topic_id = bbp_get_topic_id( get_the_ID() );
					break;

				// Post is a reply
				case bbp_get_reply_post_type() :
					$topic_id = bbp_get_reply_topic_id( get_the_ID() );
					break;
			}

			// Topic exists
			if ( ! empty( $topic_id ) ) {

				// Topic is spammed so display pre-spam terms
				if ( bbp_is_topic_spam( $topic_id ) ) {

					// Get pre-spam terms
					$spam_terms = get_post_meta( $topic_id, '_bbp_spam_topic_tags', true );
					$topic_tags = ( ! empty( $spam_terms ) ) ? implode( ', ', $spam_terms ) : '';

				// Topic is not spam so get real terms
				} else {
					$topic_tags = bbp_get_topic_tag_names( $topic_id );
				}
			}
		}

		// Filter & return
		return apply_filters( 'bbp_get_form_topic_tags', $topic_tags );
	}

/**
 * Output value of topic forum
 *
 * @since 2.0.0 bbPress (r2976)
 */
function bbp_form_topic_forum() {
	echo bbp_get_form_topic_forum();
}
	/**
	 * Return value of topic forum
	 *
	 * @since 2.0.0 bbPress (r2976)
	 *
	 * @return string Value of topic content field
	 */
	function bbp_get_form_topic_forum() {

		// Get _POST data
		if ( bbp_is_topic_form_post_request() && isset( $_POST['bbp_forum_id'] ) ) {
			$topic_forum = (int) $_POST['bbp_forum_id'];

		// Get edit data
		} elseif ( bbp_is_topic_edit() ) {
			$topic_forum = bbp_get_topic_forum_id();

		// No data
		} else {
			$topic_forum = 0;
		}

		// Filter & return
		return apply_filters( 'bbp_get_form_topic_forum', $topic_forum );
	}

/**
 * Output checked value of topic subscription
 *
 * @since 2.0.0 bbPress (r2976)
 */
function bbp_form_topic_subscribed() {
	echo bbp_get_form_topic_subscribed();
}
	/**
	 * Return checked value of topic subscription
	 *
	 * @since 2.0.0 bbPress (r2976)
	 *
	 * @return string Checked value of topic subscription
	 */
	function bbp_get_form_topic_subscribed() {

		// Default value
		$topic_subscribed = false;

		// Get _POST data
		if ( bbp_is_topic_form_post_request() && isset( $_POST['bbp_topic_subscription'] ) ) {
			$topic_subscribed = (bool) $_POST['bbp_topic_subscription'];

		// Get edit data
		} elseif ( bbp_is_topic_edit() || bbp_is_reply_edit() ) {
			$post_author      = (int) bbp_get_global_post_field( 'post_author', 'raw' );
			$topic_subscribed = bbp_is_user_subscribed( $post_author, bbp_get_topic_id() );

		// Get current status
		} elseif ( bbp_is_single_topic() ) {
			$topic_subscribed = bbp_is_user_subscribed( bbp_get_current_user_id(), bbp_get_topic_id() );
		}

		// Get checked output
		$checked = checked( $topic_subscribed, true, false );

		// Filter & return
		return apply_filters( 'bbp_get_form_topic_subscribed', $checked, $topic_subscribed );
	}

/**
 * Output checked value of topic log edit field
 *
 * @since 2.0.0 bbPress (r2976)
 */
function bbp_form_topic_log_edit() {
	echo bbp_get_form_topic_log_edit();
}
	/**
	 * Return checked value of topic log edit field
	 *
	 * @since 2.0.0 bbPress (r2976)
	 *
	 * @return string Topic log edit checked value
	 */
	function bbp_get_form_topic_log_edit() {

		// Get _POST data
		if ( bbp_is_topic_form_post_request() && isset( $_POST['bbp_log_topic_edit'] ) ) {
			$topic_revision = (bool) $_POST['bbp_log_topic_edit'];

		// No data
		} else {
			$topic_revision = true;
		}

		// Get checked output
		$checked = checked( $topic_revision, true, false );

		// Filter & return
		return apply_filters( 'bbp_get_form_topic_log_edit', $checked, $topic_revision );
	}

/**
 * Output the value of the topic edit reason
 *
 * @since 2.0.0 bbPress (r2976)
 */
function bbp_form_topic_edit_reason() {
	echo bbp_get_form_topic_edit_reason();
}
	/**
	 * Return the value of the topic edit reason
	 *
	 * @since 2.0.0 bbPress (r2976)
	 *
	 * @return string Topic edit reason value
	 */
	function bbp_get_form_topic_edit_reason() {

		// Get _POST data
		if ( bbp_is_topic_form_post_request() && isset( $_POST['bbp_topic_edit_reason'] ) ) {
			$topic_edit_reason = wp_unslash( $_POST['bbp_topic_edit_reason'] );

		// No data
		} else {
			$topic_edit_reason = '';
		}

		// Filter & return
		return apply_filters( 'bbp_get_form_topic_edit_reason', $topic_edit_reason );
	}

/**
 * Verify if a POST request came from a failed topic attempt.
 *
 * Used to avoid cross-site request forgeries when checking posted topic form
 * content.
 *
 * @see bbp_topic_form_fields()
 *
 * @since 2.6.0 bbPress (r5558)
 *
 * @return boolean True if is a post request with valid nonce
 */
function bbp_is_topic_form_post_request() {

	// Bail if not a post request
	if ( ! bbp_is_post_request() ) {
		return false;
	}

	// Creating a new topic
	if ( bbp_verify_nonce_request( 'bbp-new-topic' ) ) {
		return true;
	}

	// Editing an existing topic
	if ( bbp_verify_nonce_request( 'bbp-edit-topic_' . bbp_get_topic_id() ) ) {
		return true;
	}

	return false;
}

/** Warning *******************************************************************/

/**
 * Should the topic-lock alert appear?
 *
 * @since 2.6.0 bbPress (r6342)
 *
 * @return bool
 */
function bbp_show_topic_lock_alert() {

	// Default to not showing the alert
	$retval = false;

	// Get the current topic ID
	$topic_id = bbp_get_topic_id();

	// Only show on single topic pages
	if ( bbp_is_topic_edit() || bbp_is_single_topic() ) {

		// Only show to moderators
		if ( current_user_can( 'moderate', $topic_id ) ) {

			// Locked?
			$user_id = bbp_check_post_lock( $topic_id );

			// Only show if not locked by the current user
			if ( ! empty( $user_id ) && ( bbp_get_current_user_id() !== $user_id ) ) {
				$retval = true;
			}
		}
	}

	// Filter & return
	return (bool) apply_filters( 'bbp_show_topic_lock_alert', $retval, $topic_id );
}

/**
 * Output the topic lock description
 *
 * @since 2.6.0 bbPress (r6343)
 *
 * @param int $topic_id Optional. Topic id
 */
function bbp_topic_lock_description( $topic_id = 0 ) {
	echo bbp_get_topic_lock_description( $topic_id );
}
	/**
	 * Return the topic lock description
	 *
	 * @since 2.6.0 bbPress (r6343)
	 *
	 * @param int $topic_id Optional. Topic id
	 */
	function bbp_get_topic_lock_description( $topic_id = 0 ) {

		// Check if topic is edit locked
		$topic_id = bbp_get_topic_id( $topic_id );
		$user_id  = bbp_check_post_lock( $topic_id );
		$person   = empty( $user_id )
			? esc_html__( 'Nobody', 'bbpress' )
			: bbp_get_user_profile_link( $user_id );

		// Get the text
		$text = sprintf( esc_html__( '%1$s is currently editing this topic.', 'bbpress' ), $person );

		// Filter & return
		return apply_filters( 'bbp_get_topic_lock_description', $text, $user_id, $topic_id );
	}