<?php
/**
 * Customizer Control: sortable.
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

if ( ! class_exists( 'Bootstrap_Coach_Control_Sortable' ) ) {
	/**
	 * Sortable control (uses checkboxes).
	 */
	class Bootstrap_Coach_Control_Sortable extends WP_Customize_Control {

		public $type = 'sortable';
		
		public $option_type = 'theme_mod';

		public $disabled = false;
		
		public function enqueue() {

			wp_enqueue_script( 'sortable', get_template_directory_uri() . '/inc/custom-controls/sortable/sortable.js', array( 'jquery', 'jquery-ui-core', 'jquery-ui-sortable' ), false, true );
			wp_enqueue_style( 'sortable-css', get_template_directory_uri() . '/inc/custom-controls/sortable/sortable.css', null );

		}

		public function to_json() {
			parent::to_json();

			$this->json['disabled'] = $this->disabled;

			$this->json['default'] = $this->setting->default;
			if ( isset( $this->default ) ) {
				$this->json['default'] = $this->default;
			}
			
			$this->json['value']   = maybe_unserialize( $this->value() );
			$this->json['choices'] = $this->choices;
			$this->json['link']    = $this->get_link();
			$this->json['id']      = $this->id;

			if ( 'user_meta' === $this->option_type ) {
				$this->json['value'] = get_user_meta( get_current_user_id(), $this->id, true );
			}

			$this->json['inputAttrs'] = '';
			foreach ( $this->input_attrs as $attr => $value ) {
				$this->json['inputAttrs'] .= $attr . '="' . esc_attr( $value ) . '" ';
			}
			$this->json['inputAttrs'] = maybe_serialize( $this->input_attrs() );

		}

		/**
		 * An Underscore (JS) template for this control's content (but not its container).
		 *
		 * Class variables for this control class are available in the `data` JS object;
		 * export custom variables by overriding {@see WP_Customize_Control::to_json()}.
		 *
		 * @see WP_Customize_Control::print_template()
		 *
		 * @access protected
		 */
		protected function content_template() {
			?>
			<label class='sortable'>
				<span class="customize-control-title">
					{{{ data.label }}}
				</span>
				<# if ( data.description ) { #>
					<span class="description customize-control-description">{{{ data.description }}}</span>
				<# } #>

				<ul class="sortable ui-sortable <# if ( data.disabled ) { #>disabled<# } #>">
					<# _.each( data.value, function( choiceID ) { #>
						<li {{{ data.inputAttrs }}} class='sortable-item <# if ( data.disabled ) { #>disabled<# } #>' data-value='{{ choiceID }}'>
							<i class='dashicons dashicons-menu'></i>
							{{{ data.choices[ choiceID ] }}}
						</li>
					<# }); #>
					<# _.each( data.choices, function( choiceLabel, choiceID ) { #>
						<# if ( -1 === data.value.indexOf( choiceID ) ) { #>
							<li {{{ data.inputAttrs }}} class='sortable-item invisible' data-value='{{ choiceID }}'>
								<i class='dashicons dashicons-menu'></i>
								{{{ data.choices[ choiceID ] }}}
							</li>
						<# } #>
					<# }); #>
				</ul>
			</label>

			<?php
		}
	}
}