<?php
/**
 * Welcart Category Widget
 *
 * @package Welcart
 */

/**
 * Welcart_category Class
 *
 * @see WP_Widget
 */
class Welcart_category extends WP_Widget {

	/**
	 * Constructor.
	 */
	public function __construct() {
		$widget_ops = array(
			'classname'   => 'widget_welcart_category',
			'description' => __( 'Display item categories.', 'usces' ),
		);
		parent::__construct( 'welcart_category', 'Welcart ' . __( 'Categories', 'usces' ), $widget_ops );
	}

	/**
	 * Echoes the widget content.
	 *
	 * @see WP_Widget::widget
	 * @param array $args     Display arguments including 'before_title', 'after_title',
	 *                        'before_widget', and 'after_widget'.
	 * @param array $instance The settings for the particular instance of the widget.
	 */
	public function widget( $args, $instance ) {
		extract( $args );
		$title    = $instance['title'];
		$cat_slug = ( ! isset( $instance['cat_slug'] ) || WCUtils::is_blank( $instance['cat_slug'] ) ) ? 'itemgenre' : $instance['cat_slug'];
		$icon     = ( ! isset( $instance['icon'] ) || WCUtils::is_blank( $instance['icon'] ) ) ? 1 : (int) $instance['icon'];
		$img_path = file_exists( get_stylesheet_directory() . '/images/category.png' ) ? get_stylesheet_directory_uri() . '/images/category.png' : USCES_FRONT_PLUGIN_URL . '/images/category.png';
		if ( 1 === $icon ) {
			$before_title .= '<img src="' . $img_path . '" alt="' . $title . '" />';
		}

		wel_esc_script_e( $before_widget );
		if ( ! empty( $title ) ) {
			wel_esc_script_e( $before_title . esc_html( $title ) . $after_title );
		}
		?>

		<ul class="ucart_widget_body">
		<?php
		$cats = get_category_by_slug( $cat_slug );
		if ( ! empty( $cats ) ) {
			$cquery     = '&use_desc_for_title=1&child_of=' . $cats->term_id . '&title_li=';
			$categories = get_categories( $cquery );
			if ( ! empty( $categories ) ) {
				wp_list_categories( apply_filters( 'usces_filter_welcart_category', $cquery, $cats->term_id ) );
			}
		}
		?>
		</ul>

		<?php
		wel_esc_script_e( $after_widget );
	}

	/**
	 * Updates a particular instance of a widget.
	 *
	 * @see WP_Widget::update
	 * @param array $new_instance New settings for this instance as input by the user via
	 *                            WP_Widget::form().
	 * @param array $old_instance Old settings for this instance.
	 * @return array Settings to save or bool false to cancel saving.
	 */
	public function update( $new_instance, $old_instance ) {
		return $new_instance;
	}

	/**
	 * Outputs the settings update form.
	 *
	 * @see WP_Widget::form
	 * @param array $instance Current settings.
	 */
	public function form( $instance ) {
		$title    = isset( $instance['title'] ) ? esc_attr( $instance['title'] ) : '';
		$cat_slug = ( ! isset( $instance['cat_slug'] ) || WCUtils::is_blank( $instance['cat_slug'] ) ) ? 'itemgenre' : esc_attr( $instance['cat_slug'] );
		$icon     = ( ! isset( $instance['icon'] ) || WCUtils::is_blank( $instance['icon'] ) ) ? 1 : (int) $instance['icon'];
		?>
		<p><label for="<?php wel_esc_script_e( $this->get_field_id( 'title' ) ); ?>"><?php esc_html_e( 'Title:', 'usces' ); ?> <input class="widefat" id="<?php wel_esc_script_e( $this->get_field_id( 'title' ) ); ?>" name="<?php wel_esc_script_e( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php wel_esc_script_e( $title ); ?>" /></label></p>
		<p><label for="<?php wel_esc_script_e( $this->get_field_id( 'icon' ) ); ?>"><?php esc_html_e( 'display of icon', 'usces' ); ?>: <select class="widefat" id="<?php wel_esc_script_e( $this->get_field_id( 'icon' ) ); ?>" name="<?php wel_esc_script_e( $this->get_field_name( 'icon' ) ); ?>">
			<option value="1"<?php selected( $icon, 1 ); ?>><?php esc_html_e( 'Indication', 'usces' ); ?></option>
			<option value="2"<?php selected( $icon, 2 ); ?>><?php esc_html_e( 'Non-indication', 'usces' ); ?></option></select></label>
		</p>
		<p><label for="<?php wel_esc_script_e( $this->get_field_id( 'cat_slug' ) ); ?>"><?php esc_html_e( 'parent category(slug)', 'usces' ); ?> <input class="widefat" id="<?php wel_esc_script_e( $this->get_field_id( 'cat_slug' ) ); ?>" name="<?php wel_esc_script_e( $this->get_field_name( 'cat_slug' ) ); ?>" type="text" value="<?php wel_esc_script_e( $cat_slug ); ?>" /></label></p>
		<?php
	}
}
