AnsPress_Admin::anspress_notice()

	public static function anspress_notice() {
		$page             = get_current_screen();
		$anspress_updates = get_option( 'anspress_updates', array() );
		$have_updates     = empty( $anspress_updates ) || in_array( false, $anspress_updates, true );

		$messages = array(
			'db'            => array(
				'type'    => 'error',
				'message' => __( 'AnsPress database is not updated.', 'anspress-question-answer' ),
				'button'  => ' <a class="button" href="' . admin_url( 'admin-post.php?action=anspress_update_db' ) . '">' . __( 'Update now', 'anspress-question-answer' ) . '</a>',
				'show'    => ( get_option( 'anspress_db_version' ) != AP_DB_VERSION ), // phpcs:ignore Universal.Operators.StrictComparisons.LooseNotEqual
			),
			'missing_pages' => array(
				'type'    => 'error',
				'message' => __( 'One or more AnsPress page(s) does not exists.', 'anspress-question-answer' ),
				'button'  => ' <a href="' . admin_url( 'admin-post.php?action=anspress_create_base_page' ) . '">' . __( 'Set automatically', 'anspress-question-answer' ) . '</a> ' . __( 'Or', 'anspress-question-answer' ) . ' <a href="' . admin_url( 'admin.php?page=anspress_options' ) . '">' . __( 'Set set by yourself', 'anspress-question-answer' ) . '</a>',
				'show'    => ( ! self::check_pages_exists() ),
			),
		);

		/**
		 * Filter the AnsPress admin notices before they're output.
		 *
		 * @param array $messages List of notices.
		 */
		$messages = apply_filters( 'ap_admin_notices', $messages );

		foreach ( $messages as $msg ) {
			if ( $msg['show'] ) {
				$class = 'ap-notice notice notice-' . $msg['type'];
				echo wp_kses_post(
					sprintf(
						'<div class="%1$s %4$s"><p>%2$s%3$s</p></div>',
						esc_attr( $class ),
						esc_html( $msg['message'] ),
						$msg['button'],
						'apicon-anspress-icon'
					)
				);
			}
		}
	}