Members::register_template_tag_handlers()

	protected function register_template_tag_handlers() {
		$tags = array(
			'sitetitle'          => array(
				'group'       => 'global',
				'label'       => __( 'Site Title', 'torro-forms' ),
				'description' => __( 'Inserts the site title.', 'torro-forms' ),
				'callback'    => function() {
					return get_bloginfo( 'name' );
				},
			),
			'sitetagline'        => array(
				'group'       => 'global',
				'label'       => __( 'Site Tagline', 'torro-forms' ),
				'description' => __( 'Inserts the site tagline.', 'torro-forms' ),
				'callback'    => function() {
					return get_bloginfo( 'description' );
				},
			),
			'siteurl'            => array(
				'group'       => 'global',
				'label'       => __( 'Site URL', 'torro-forms' ),
				'description' => __( 'Inserts the site home URL.', 'torro-forms' ),
				'callback'    => function() {
					return home_url( '/' );
				},
			),
			'adminemail'         => array(
				'group'       => 'global',
				'label'       => __( 'Site Admin Email', 'torro-forms' ),
				'description' => __( 'Inserts the site admin email.', 'torro-forms' ),
				'callback'    => function() {
					return get_option( 'admin_email' );
				},
			),
			'userip'             => array(
				'group'       => 'global',
				'label'       => __( 'User IP', 'torro-forms' ),
				'description' => __( 'Inserts the current user IP address.', 'torro-forms' ),
				'callback'    => function() {
					$validated_ip = filter_var( $_SERVER['REMOTE_ADDR'], FILTER_VALIDATE_IP );
					if ( empty( $validated_ip ) ) {
						return '0.0.0.0';
					}
					return $validated_ip;
				},
			),
			'refererurl'         => array(
				'group'       => 'global',
				'label'       => __( 'Referer URL', 'torro-forms' ),
				'description' => __( 'Inserts the current referer URL.', 'torro-forms' ),
				'callback'    => function() {
					return wp_get_referer();
				},
			),
			'formtitle'          => array(
				'group'       => 'form',
				'label'       => __( 'Form Title', 'torro-forms' ),
				'description' => __( 'Inserts the form title.', 'torro-forms' ),
				'callback'    => function( $form ) {
					return $form->title;
				},
			),
			'formurl'            => array(
				'group'       => 'form',
				'label'       => __( 'Form URL', 'torro-forms' ),
				'description' => __( 'Inserts the URL to the form.', 'torro-forms' ),
				'callback'    => function( $form ) {
					return get_permalink( $form->id );
				},
			),
			'formediturl'        => array(
				'group'       => 'form',
				'label'       => __( 'Form Edit URL', 'torro-forms' ),
				'description' => __( 'Inserts the edit URL for the form.', 'torro-forms' ),
				'callback'    => function( $form ) {
					return get_edit_post_link( $form->id );
				},
			),
			'useremail'          => array(
				'group'       => 'user',
				'label'       => __( 'User Email', 'torro-forms' ),
				'description' => __( 'Inserts the email address for the user.', 'torro-forms' ),
				'callback'    => function( $form, $user ) {
					return $user->user_email;
				},
			),
			'username'           => array(
				'group'       => 'user',
				'label'       => __( 'Username', 'torro-forms' ),
				'description' => __( 'Inserts the username.', 'torro-forms' ),
				'callback'    => function( $form, $user ) {
					return $user->user_login;
				},
			),
			'userdisplayname'    => array(
				'group'       => 'user',
				'label'       => __( 'User Display Name', 'torro-forms' ),
				'description' => __( 'Inserts the full display name the user has chosen to be addressed with.', 'torro-forms' ),
				'callback'    => function( $form, $user ) {
					return $user->display_name;
				},
			),
		);

		$groups = array(
			'global' => _x( 'Global', 'template tag group', 'torro-forms' ),
			'form'   => _x( 'Form', 'template tag group', 'torro-forms' ),
			'user'   => _x( 'User', 'template tag group', 'torro-forms' ),
		);

		$this->template_tag_handler            = new Template_Tag_Handler( $this->slug, $tags, array( Form::class, WP_User::class ), $groups );
		$this->template_tag_handler_email_only = new Template_Tag_Handler( $this->slug . '_email_only', array(
			'adminemail' => $tags['adminemail'],
			'useremail'  => $tags['useremail'],
		), array( Form::class, WP_User::class ), array(
			'global' => $groups['global'],
			'user'   => $groups['user'],
		) );

		$this->module->manager()->template_tag_handlers()->register( $this->template_tag_handler );
		$this->module->manager()->template_tag_handlers()->register( $this->template_tag_handler_email_only );
	}