<?php

namespace App\Presenters\Admin;

use App\Presenters\Html\HtmlPresenter;

class MainMenuItemPresenter
{
    private $htmlPresenter;

    public function __construct(HtmlPresenter $htmlPresenter)
    {
        $this->htmlPresenter = $htmlPresenter;
    }

    /**
     * 檢查選單項目權限
     *
     * @param array $item
     * @return mixed
     */
    private function checkMenuItemPermission($item)
    {
        return !empty($item['userHasPermission']) && $item['userHasPermission'];
    }

    /**
     * Check if any child has permission
     *
     * @param $item
     * @return bool
     */
    private function checkAnyChildPermission($item)
    {
        if(isset($item['children'])) {
            $anyChildHasPermission = false;
            foreach ($item['children'] as $childMenu) {
                $anyChildHasPermission = $anyChildHasPermission || $childMenu['userHasPermission'];
            }
            return $anyChildHasPermission;
        } else {
            return true;
        }
    }

    /**
     * 回傳選單項目Html
     *
     * return string
     */
    public function render()
    {
        $menu = app('AdminMenu')->getMenu();

        $html = '';
        $htmlPresenter = $this->htmlPresenter;

        foreach ($menu as $parentKey => $item) {
            switch($item['type']) {
                case 'title':
                    $html .= $htmlPresenter->li([
                        'class' => 'nav-title',
                        'html'  => trans('menu.titles.' . $item['name'])
                    ]);
                    break;
                case 'item':
                    if($this->checkMenuItemPermission($item) && $this->checkAnyChildPermission($item)) {
                        $hasChildren = !empty($item['children']);
                        $html .= $htmlPresenter->li([
                            'class' => [
                                'nav-item',
                                $hasChildren ? 'nav-dropdown has-children' : '',
                                "slug-{$item['slug']}"
                            ],
                            'html' => [
                                $htmlPresenter->a([
                                    'class' => [
                                        'nav-link',
                                        $hasChildren ? 'nav-dropdown-toggle' : '',
                                    ],
                                    'href' => $item['link'],
                                    'html' => [
                                        !empty($item['iconClass']) ? $htmlPresenter->i(['class' => $item['iconClass']]) : '',
                                        $item['name'],
                                        !empty($item['badge']) ? $htmlPresenter->bs()->badge($item['badge']['label'], $item['badge']['type'], $item['badge']['isPill']) : ''
                                    ],
                                ]),
                                $hasChildren ? $htmlPresenter->ul([
                                    'class' => 'nav-dropdown-items submenu',
                                    'html'  => function() use ($hasChildren, $item, $htmlPresenter) {
                                        $html = '';
                                        if($hasChildren) {
                                            foreach ($item['children'] as $childItem) {
                                                if($this->checkMenuItemPermission($childItem)) {
                                                    $html .= $htmlPresenter->li([
                                                        'class' => [
                                                            'nav-item',
                                                            "slug-{$childItem['slug']}",
                                                        ],
                                                        'html' => $htmlPresenter->a([
                                                            'class' => 'nav-link',
                                                            'href'  => $childItem['link'],
                                                            'html'  => [
                                                                !empty($childItem['iconClass']) ? $htmlPresenter->i(['class' => $childItem['iconClass']]) : '',
                                                                $childItem['name'],
                                                                !empty($childItem['badge']) ? $htmlPresenter->bs()->badge($childItem['badge']['label'], $childItem['badge']['type'], $childItem['badge']['isPill']) : ''
                                                            ]
                                                        ])
                                                    ]);
                                                }
                                            }
                                        }
                                        return $html;
                                    }
                                ]) : ''
                            ]
                        ]);
                    }
                    break;
                case 'divider':
                    $html .= $htmlPresenter->li([
                        'class' => 'nav-divider'
                    ]);
                    break;
            }
        }
        echo $html;
    }
}