<?php

namespace Tekod\ADWMAN\Dashboard;

class Render
{

    public static function renderSingleWidgetMetabox(string $widgetId): string
    {
        global $wp_meta_boxes;
        require_once ABSPATH . 'wp-admin/includes/dashboard.php';

        // find widget class
        $widget = self::findWidgetById($widgetId);

        // make backup
        $original = $wp_meta_boxes['dashboard'] ?? [];

        // clear dashboard and insert selected widget
        $wp_meta_boxes['dashboard'] = [
            'normal' => [
                'core' => [],
                'sorted' => [
                    [
                        'id' => $widget['id'],
                        'title' => $widget['title'],
                        'callback' => $widget['callback'],
                        'args' => null,
                    ],
                ],
            ],
        ];

        ob_start();
        do_meta_boxes('dashboard', 'normal', null) ;
        $html = ob_get_clean();

        // remove wrapping div
        $html = substr($html, strpos($html, '>') + 1);
        $html = substr($html, 0, strrpos($html, '<'));

        // restore backup
        $wp_meta_boxes['dashboard'] = $original;

        return $html;
    }


    public static function renderSingleWidgetContent(string $widgetId): string
    {
        $widget = Render::findWidgetById($widgetId);
        $callable = [$widget['callback'][0], 'render'];
        ob_start();
        $callable();
        return ob_get_clean();
    }


    public static function findWidgetById(string $widgetId): array
    {
        foreach (Widgets::getAllWidgets() as $widget) {
            if ($widget['id'] === $widgetId) {
                return $widget;
            }
        }
        return [];
    }


    public static function renderColumns(array $columns): array
    {
        require_once ABSPATH . 'wp-admin/includes/dashboard.php';
        //Widgets::getAllWidgets();  // pre-fetch
        return [
            'normal' => self::renderColumn($columns['normal'] ?? ''),
            'side' => self::renderColumn($columns['side'] ?? ''),
            'column3' => self::renderColumn($columns['column3'] ?? ''),
            'column4' => self::renderColumn($columns['column4'] ?? ''),
        ];
    }


    protected static function renderColumn(string $list): string
    {
        global $wp_meta_boxes;

        // clear dashboard and insert selected widgets
        $wp_meta_boxes['dashboard'] = [
            'normal' => [
                'core' => [],
                'sorted' => [],
            ],
        ];
        foreach (array_filter(array_map('trim', explode(',', $list))) as $id) {
            $struct = self::findWidgetById($id);
            if ($struct) {
                $wp_meta_boxes['dashboard']['normal']['sorted'][] = $struct;
            }
        }

        $html = '';
        if (!empty($wp_meta_boxes['dashboard']['normal']['sorted'])) {
            ob_start();
            do_meta_boxes('dashboard', 'normal', null);
            $html = ob_get_clean();

            // remove wrapping div
            $html = substr($html, strpos($html, '>') + 1);
            $html = substr($html, 0, strrpos($html, '<'));
        }

        return $html;
    }


    public static function renderScripts(): string
    {
        ob_start();
        wp_print_scripts();
        wp_print_footer_scripts();
        return ob_get_clean();
    }

}