<?php
function stm_theme_import_widgets($layout) {

    global $wp_filesystem;

    if (empty($wp_filesystem)) {
        require_once ABSPATH . '/wp-admin/includes/file.php';
        WP_Filesystem();
    }

    $widgets = STM_POST_TYPE_PATH . '/importer/demos/' . $layout . '/widgets/widget_data.json';

    if (file_exists($widgets)) {
        $encode_widgets_array = $wp_filesystem->get_contents($widgets);
        stm_import_widgets($encode_widgets_array);
    }

}

function stm_import_widgets($widget_data)
{
    $json_data = $widget_data;
    $json_data = json_decode($json_data, true);

    $sidebar_data = $json_data[0];
    $widget_data = $json_data[1];

    $menu_object = wp_get_nav_menu_object('Widget menu');

    if (!empty($menu_object)
        and !empty($menu_object->term_id)
        and !empty($widget_data['nav_menu'])
        and !empty($widget_data['nav_menu'][2])
        and !empty($widget_data['nav_menu'][2]['nav_menu'])
    ) {
        $widget_data['nav_menu'][2]['nav_menu'] = $menu_object->term_id;
    }

    foreach ($widget_data as $widget_data_title => $widget_data_value) {
		$widgets[$widget_data_title] = array();
        foreach ($widget_data_value as $widget_data_key => $widget_data_array) {
            if (is_int($widget_data_key)) {
                $widgets[$widget_data_title][$widget_data_key] = 'on';
            }
        }
    }
    unset($widgets[""]);

    foreach ($sidebar_data as $title => $sidebar) {
        $count = count($sidebar);
        for ($i = 0; $i < $count; $i++) {
            $widget = array();
            $widget['type'] = trim(substr($sidebar[$i], 0, strrpos($sidebar[$i], '-')));
            $widget['type-index'] = trim(substr($sidebar[$i], strrpos($sidebar[$i], '-') + 1));
            if (!isset($widgets[$widget['type']][$widget['type-index']])) {
                unset($sidebar_data[$title][$i]);
            }
        }
        $sidebar_data[$title] = array_values($sidebar_data[$title]);
    }

    foreach ($widgets as $widget_title => $widget_value) {
        foreach ($widget_value as $widget_key => $widget_value) {
            $widgets[$widget_title][$widget_key] = $widget_data[$widget_title][$widget_key];
        }
    }

    $sidebar_data = array(array_filter($sidebar_data), $widgets);

    stm_widget_parse_import_data($sidebar_data);
}


function stm_widget_parse_import_data($import_array)
{
    global $wp_registered_sidebars;
    $sidebars_data = $import_array[0];
    $widget_data = $import_array[1];
    $current_sidebars = get_option('sidebars_widgets');
    $new_widgets = array();

    foreach ($sidebars_data as $import_sidebar => $import_widgets) :

        foreach ($import_widgets as $import_widget) :
            //if the sidebar exists
            if (isset($wp_registered_sidebars[$import_sidebar])) :
                $title = trim(substr($import_widget, 0, strrpos($import_widget, '-')));
                $index = trim(substr($import_widget, strrpos($import_widget, '-') + 1));
                $current_widget_data = get_option('widget_' . $title);
                $new_widget_name = stm_get_new_widget_name($title, $index);
                $new_index = trim(substr($new_widget_name, strrpos($new_widget_name, '-') + 1));

                if (!empty($new_widgets[$title]) && is_array($new_widgets[$title])) {
                    while (array_key_exists($new_index, $new_widgets[$title])) {
                        $new_index++;
                    }
                }
                $current_sidebars[$import_sidebar][] = $title . '-' . $new_index;
                if (array_key_exists($title, $new_widgets)) {
                    $new_widgets[$title][$new_index] = $widget_data[$title][$index];
                    $multiwidget = $new_widgets[$title]['_multiwidget'];
                    unset($new_widgets[$title]['_multiwidget']);
                    $new_widgets[$title]['_multiwidget'] = $multiwidget;
                } else {
                    $current_widget_data[$new_index] = $widget_data[$title][$index];
                    $current_multiwidget = isset($current_widget_data['_multiwidget']) ? $current_widget_data['_multiwidget'] : false;
                    $new_multiwidget = isset($widget_data[$title]['_multiwidget']) ? $widget_data[$title]['_multiwidget'] : false;
                    $multiwidget = ($current_multiwidget != $new_multiwidget) ? $current_multiwidget : 1;
                    unset($current_widget_data['_multiwidget']);
                    $current_widget_data['_multiwidget'] = $multiwidget;
                    $new_widgets[$title] = $current_widget_data;
                }

            endif;
        endforeach;
    endforeach;

    if (isset($new_widgets) && isset($current_sidebars)) {
        update_option('sidebars_widgets', $current_sidebars);

        foreach ($new_widgets as $title => $content) {
            update_option('widget_' . $title, $content);
        }

        return true;
    }

    return false;
}

function stm_get_new_widget_name($widget_name, $widget_index)
{
    $current_sidebars = get_option('sidebars_widgets');
    $all_widget_array = array();
    foreach ($current_sidebars as $sidebar => $widgets) {
        if (!empty($widgets) && is_array($widgets) && $sidebar != 'wp_inactive_widgets') {
            foreach ($widgets as $widget) {
                $all_widget_array[] = $widget;
            }
        }
    }
    while (in_array($widget_name . '-' . $widget_index, $all_widget_array)) {
        $widget_index++;
    }
    $new_widget_name = $widget_name . '-' . $widget_index;

    return $new_widget_name;
}
