<?
// Creating the widget
class delivery_widget extends WP_Widget {

    function __construct() {
        parent::__construct(
            'delivery_widget',
            __('Delivery Pesquisa', 'delivery_widget_domain'),
            array( 'description' => __( 'Widget para box de delivery', 'delivery_widget_domain' ), )
        );
    }

    // Creating widget front-end
    // This is where the action happens
    public function widget( $args, $instance ) {
        $title = apply_filters( 'widget_title', $instance['title'] );
        $sub_title = apply_filters('widget_title', $instance['sub_title']);
        echo $args['before_widget'];
        if ( ! empty( $title ) ) {
            echo $args['before_title'] . $title;
            if(!empty($sub_title))
                echo '<span>' . $sub_title . '</span>';

             echo $args['after_title'];
        }

        echo $this->deliverySearch();
        echo $args['after_widget'];
    }

    // Widget Backend
    public function form( $instance ) {
        if ( isset( $instance[ 'title' ] ) ) {
            $title = $instance[ 'title' ];
        } else {
            $title = __( 'Delivery', 'delivery_widget_domain' );
        }

        if (isset($instance['sub_title'])){
            $sub_title = $instance['sub_title'];
        } else {
            $sub_title = __('escolha uma categoria', 'delivery_widget_domain');
        }
        // Widget admin form
        ?>
        <p>
            <label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
            <input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" />
        </p>
        <p>
            <label for="<?php echo $this->get_field_id('sub_title'); ?>"><?php _e('Sub Título:'); ?></label>
            <input class="widefat" id="<?php echo $this->get_field_id('sub_title'); ?>" name="<?php echo $this->get_field_name('sub_title'); ?>" type="text" value="<?php echo esc_attr($sub_title); ?>" />
        </p>
      <?php
  }

    // Updating widget replacing old instances with new
    public function update( $new_instance, $old_instance ) {
        $instance = array();
        $instance['title'] = ( ! empty( $new_instance['title'] ) ) ? strip_tags( $new_instance['title'] ) : '';
        $instance['sub_title'] = (!empty($new_instance['sub_title'])) ? strip_tags($new_instance['sub_title']): '';
        return $instance;
    }

    private function deliverySearch(){
        $html = <<<EOT
        <div class="loading"></div>
        <div class="delivery-widget-slider-wrapper">
            <ul class="slider-delivery-widget">
EOT;
        $html .= $this->printCategorias();
        $html .= "</ul></div>";
        return $html;
    }

    private function printCategorias(){
        $terms = get_terms("deliverys","hide_empty=1");
        $count = count($terms);
        $terms = apply_filters( 'taxonomy-images-get-terms', '' , array('taxonomy' => 'deliverys'));
        $html = '';
        if ($count > 0){
            foreach($terms as $term){
                $imagem = wp_get_attachment_image_src($term->image_id);
                $imagem = $imagem[0];
                $link = get_site_url() . "/delivery/?categoria=" . $term->slug;
                $nome = $term->name;
                $html .= <<<EOT
                <li>
                    <a href="$link"><img src="$imagem" /></a>
                    <p>$nome</p>
                </li>
EOT;
            }
        }

        return $html;

    }
} // Class delivery_widget ends here

// Register and load the widget
function wpb_load_widget() {
    register_widget( 'delivery_widget' );
}
add_action( 'widgets_init', 'wpb_load_widget' );