<?php
/**
 * @author : Jegtheme
 */
namespace JNews\Widget;

Class EditWidgetArea
{
    /**
     * @var EditWidgetArea
     */
    private static $instance;

    /**
     * @var String
     */
    public static $widget_list = 'jnews-widget-list';

    /**
     * @return EditWidgetArea
     */
    public static function getInstance()
    {
        if ( null === static::$instance )
        {
            static::$instance = new static();
        }
        return static::$instance;
    }

    private function __construct()
    {
        add_action('widgets_init', array($this, 'register_sidebar'), 10 );
        if($this->is_widget_page()){
            add_action('admin_enqueue_scripts', array($this, 'load_script'));
            add_action('widgets_admin_page', array($this, 'additional_widget_button'), 9);
            add_action('sidebar_admin_page', array($this, 'widget_overlay'));
            add_action('after_setup_theme', array($this, 'save_widgetlist'));
        }
       
        add_filter('jnews_get_sidebar_widget', array($this, 'get_sidebar_widget'));
    }

    public function load_script()
    {
        wp_enqueue_script('jquery-ui-spinner');
        wp_enqueue_style('jnews-widget-css',        JNEWS_THEME_URL . '/assets/css/admin/widget.css', null, jnews_get_theme_version());
        wp_enqueue_style('font-awesome',            JNEWS_THEME_URL . '/assets/css/font-awesome.min.css', null, jnews_get_theme_version());

        // upload
        wp_enqueue_media();

        // color picker
        wp_enqueue_style( 'wp-color-picker' );
        wp_enqueue_script( 'wp-color-picker-alpha', JNEWS_THEME_URL . '/assets/js/vendor/wp-color-picker-alpha.js', array( 'wp-color-picker' ), null, true );
        wp_localize_script(
            'wp-color-picker-alpha',
            'wpColorPickerL10n',
            array(
                'clear'            => esc_html__( 'Clear', 'jnews' ),
                'clearAriaLabel'   => esc_html__( 'Clear color', 'jnews' ),
                'defaultString'    => esc_html__( 'Default', 'jnews' ),
                'defaultAriaLabel' => esc_html__( 'Select default color', 'jnews' ),
                'pick'             => esc_html__( 'Select color', 'jnews' ),
                'defaultLabel'     => esc_html__( 'Color value', 'jnews' ),
            ));
    }

    public function is_widget_page()
    {
        global $pagenow;
        return $pagenow === 'widgets.php' ? true : false;
    }

    public function save_widgetlist()
    {
        if(isset($_POST['modifwidget']))
        {
            if(isset($_POST['widgetlist']))
            {
                update_option(self::$widget_list, $_POST['widgetlist'] );
            } else {
                delete_option(self::$widget_list);
            }
        }
    }

    public function additional_widget_button()
    {
        echo wp_kses('<h1><a class="sidebarwidget add-new-h2">' . esc_html__('Add or Remove Widget Area', 'jnews') . '</a></h1><div class="clearfix"></div>',
            array(
                'a' => array( 'class' => true),
                'div' => array( 'class' => true ),
            )
        );
    }

    public function populate_widget()
    {
        $html = '';
        $widgetlist = get_option(self::$widget_list);

        if( $widgetlist) {
            foreach($widgetlist as $widget) {
                $html .= '<li><span>' . $widget . '</span><input type="hidden" name="widgetlist[]" value="' . esc_attr( $widget ) . '"><div class="remove fa fa-ban"></div></li>';
            }
        }

        return $html;
    }

    public function widget_overlay()
    {
        echo
            '<div class="widget-overlay">
                <form method="POST">
                    <div class="widget-overlay-wrapper">
                        <h3>' . esc_html__('Edit Widget Area', 'jnews') . '</h3>
                        <div class="close fa fa-times"></div>
                        <div class="widget-content-list">
                            <div class="widget-content-wrapper">
                                <h4>' . esc_html__('Widget Area List :', 'jnews') . '</h4>
                                <ul> ' . $this->populate_widget() .  '</ul>
                            </div>
                            <div class="widget-confirm">
                                <input type="button" class="addwidget button-secondary" value="' .  esc_attr__('Create Widget Area', 'jnews') . '">
                                <input type="submit" class="savewidget button-primary" value="' .  esc_attr__('Save Widget', 'jnews')  . '">
                            </div>
                        </div>
                        <div class="widget-adding-content">
                            <div class="widget-additional">
                                <h4>' .  esc_html__('Create Widget Area', 'jnews') . '</h4>
                                <input type="text" class="textwidgetconfirm" placeholder="' .  esc_attr__('Enter name of widget', 'jnews')  . '">
                            </div>
                            <div class="widget-confirm">
                                <input type="button" class="addwidgetconfirm button-primary" value="' .  esc_attr__('Add Widget', 'jnews')  . '">
                            </div>
                        </div>
                    </div>
                    <input type="hidden" name="modifwidget" value="1"/>
                    ' . wp_nonce_field( 'edit-widgetlist' ) . '
                </form>
            </div>';
    }
    
    public function register_sidebar()
    {
        $widgetlist = get_option(self::$widget_list);

        if($widgetlist)
        {
            foreach($widgetlist as $location => $widget)
            {
                register_sidebar(array(
                    'id'                => sanitize_title($widget),
                    'name'              => $widget,
                    'before_widget'     => '<div class="widget %2$s" id="%1$s">',
                    'before_title'      => '<div class="jeg_block_heading jeg_block_heading_6"><h3 class="jeg_block_title"><span>',
                    'after_title'       => '</span></h3></div>',
                    'after_widget'      => '</div>',
                ));
            }
        }
    }

    public function get_sidebar_widget()
    {
        $widgetlist = get_option(self::$widget_list);
        $allwidget = array(
            'default-sidebar' => esc_html__('Default Sidebar', 'jnews'),
        );

        if(!empty($widgetlist)) {
            foreach($widgetlist as $widget) {
                $allwidget[sanitize_title($widget)] = $widget;
            }
        }

        return $allwidget;
    }
}