<?php

class WP_Widget_Archives extends WP_Widget
{
    public function __construct()
    {
        $widget_ops = array('classname' => 'widget_archive', 'description' => __('A monthly archive of your site&#8217;s Posts.'), 'customize_selective_refresh' => true);
        parent::__construct('archives', __('Archives'), $widget_ops);
    }
    public function widget($args, $instance)
    {
        $default_title = __('Archives');
        $title = !empty($instance['title']) ? $instance['title'] : $default_title;
        $title = apply_filters('widget_title', $title, $instance, $this->id_base);
        $count = !empty($instance['count']) ? '1' : '0';
        $dropdown = !empty($instance['dropdown']) ? '1' : '0';
        echo $args['before_widget'];
        if ($title) {
            echo $args['before_title'] . $title . $args['after_title'];
        }
        if ($dropdown) {
            $dropdown_id = "{$this->id_base}-dropdown-{$this->number}";
            ?>
		<label class="screen-reader-text" for="<?php 
            echo esc_attr($dropdown_id);
            ?>"><?php 
            echo $title;
            ?></label>
		<select id="<?php 
            echo esc_attr($dropdown_id);
            ?>" name="archive-dropdown">
			<?php 
            $dropdown_args = apply_filters('widget_archives_dropdown_args', array('type' => 'monthly', 'format' => 'option', 'show_post_count' => $count), $instance);
            switch ($dropdown_args['type']) {
                case 'yearly':
                    $label = __('Select Year');
                    break;
                case 'monthly':
                    $label = __('Select Month');
                    break;
                case 'daily':
                    $label = __('Select Day');
                    break;
                case 'weekly':
                    $label = __('Select Week');
                    break;
                default:
                    $label = __('Select Post');
                    break;
            }
            $type_attr = current_theme_supports('html5', 'script') ? '' : ' type="text/javascript"';
            ?>

			<option value=""><?php 
            echo esc_html($label);
            ?></option>
			<?php 
            wp_get_archives($dropdown_args);
            ?>

		</select>

<script<?php 
            echo $type_attr;
            ?>>
/* <![CDATA[ */
(function() {
	var dropdown = document.getElementById( "<?php 
            echo esc_js($dropdown_id);
            ?>" );
	function onSelectChange() {
		if ( dropdown.options[ dropdown.selectedIndex ].value !== '' ) {
			document.location.href = this.options[ this.selectedIndex ].value;
		}
	}
	dropdown.onchange = onSelectChange;
})();
/* ]]> */
</script>
			<?php 
        } else {
            $format = current_theme_supports('html5', 'navigation-widgets') ? 'html5' : 'xhtml';
            $format = apply_filters('navigation_widgets_format', $format);
            if ('html5' === $format) {
                $title = trim(strip_tags($title));
                $aria_label = $title ? $title : $default_title;
                echo '<nav role="navigation" aria-label="' . esc_attr($aria_label) . '">';
            }
            ?>

			<ul>
				<?php 
            wp_get_archives(apply_filters('widget_archives_args', array('type' => 'monthly', 'show_post_count' => $count), $instance));
            ?>
			</ul>

			<?php 
            if ('html5' === $format) {
                echo '</nav>';
            }
        }
        echo $args['after_widget'];
    }
    public function update($new_instance, $old_instance)
    {
        $instance = $old_instance;
        $new_instance = wp_parse_args((array) $new_instance, array('title' => '', 'count' => 0, 'dropdown' => ''));
        $instance['title'] = sanitize_text_field($new_instance['title']);
        $instance['count'] = $new_instance['count'] ? 1 : 0;
        $instance['dropdown'] = $new_instance['dropdown'] ? 1 : 0;
        return $instance;
    }
    public function form($instance)
    {
        $instance = wp_parse_args((array) $instance, array('title' => '', 'count' => 0, 'dropdown' => ''));
        ?>
		<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 $this->get_field_name('title');
        ?>" type="text" value="<?php 
        echo esc_attr($instance['title']);
        ?>" />
		</p>
		<p>
			<input class="checkbox" type="checkbox"<?php 
        checked($instance['dropdown']);
        ?> id="<?php 
        echo $this->get_field_id('dropdown');
        ?>" name="<?php 
        echo $this->get_field_name('dropdown');
        ?>" />
			<label for="<?php 
        echo $this->get_field_id('dropdown');
        ?>"><?php 
        _e('Display as dropdown');
        ?></label>
			<br/>
			<input class="checkbox" type="checkbox"<?php 
        checked($instance['count']);
        ?> id="<?php 
        echo $this->get_field_id('count');
        ?>" name="<?php 
        echo $this->get_field_name('count');
        ?>" />
			<label for="<?php 
        echo $this->get_field_id('count');
        ?>"><?php 
        _e('Show post counts');
        ?></label>
		</p>
		<?php 
    }
}