<?php

namespace App\Http\Middleware;

use Closure;
use Route;
use Arr;

/**
 * 檢查Admin選單項目的route權限
 *
 * Class CheckAdminMenuPagePermission
 * @package App\Http\Middleware
 */
class CheckAdminMenuPagePermission
{
    /**
     * 處理並檢查Admin選單項目的route權限
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        //取得目前的Route
        $currentRoute = Route::current();
        //取得目前的Route Controller
        $menuController = $currentRoute->controller;
        //取得目前的Route Method
        $method = $currentRoute->getActionMethod();

        //如果Controller為選單項目的子類別
        if(is_subclass_of($menuController, \App\Http\Controllers\Admin\Menu\BaseMenuItemController::class)) {
            //如果方法為預設的route方法
            if($method == 'handle') {
                //取得slug組成的route name
                $routeName = str_replace(config('admin.route_name_prefix') . config('admin.menu.route_name_prefix'), '', Route::currentRouteName());
                //取得Admin選單項目
                $adminMenu = app('AdminMenu')->getMenu();
                //分解Slug
                $slugs = explode('.', $routeName);
                //如果slug數量大於1，則為子選單controller
                if(sizeof($slugs) > 1) {
                    $permission = Arr::get($adminMenu, "{$slugs[0]}.children.{$slugs[1]}.userHasPermission");
                } else {
                    $permission = Arr::get($adminMenu, "{$slugs[0]}.userHasPermission");
                }
                if(!$permission) {
                    abort(403);
                }
            }
        }
        return $next($request);
    }
}