<?php

namespace App\Models\Admin;

use App\Models\OrderReduceRange;
use Dcat\Admin\Models\Administrator as DcatAdministrator;

class Administrator extends DcatAdministrator
{
    public const SESSION_KEY = 'user_permissions';

    public function hasPermission(string $slug): bool
    {
        //判断是否是超级管理员
        if ($this->isAdministrator()) {
            return true;
        }
        //判断是否有权限
        return in_array($slug, $this->getCachePermissions());
    }

    /**
     * 获取缓存权限
     *
     * @return array|null
     */
    public function getCachePermissions(): ?array
    {
        $key = self::SESSION_KEY;
        if (session()->has($key)) {
            return session($key);
        }
        //获取角色权限
        $permissions = [];
        foreach ($this->roles()->with('permissions')->get() as $role) {
            foreach ($role->permissions as $permission) {
                $permissions[] = $permission->slug;
            }
        }

        array_unique($permissions);

        //缓存权限
        session([$key => $permissions]);

        return $permissions;
    }

    public function clearCachePermission()
    {
        session()->forget(self::SESSION_KEY);
    }

    /**
     * 管理员订单调价范围
     *
     * @return void
     */
    public function orderReduceRange()
    {
        return $this->hasOne(OrderReduceRange::class, 'administrator_id');
    }

    /**
     * 在调价权限范围内
     *
     * @param integer $reduced
     * @return void
     */
    public function inReduceRange(int $reduced)
    {
        if (is_null($this->orderReduceRange)) {
            return false;
        }
        return $reduced <= ($this->orderReduceRange->max*100);
    }

    public function stores()
    {
        return $this->belongsToMany(\App\Models\Store\Store::class, 'store_administrators', 'administrator_id', 'store_id');
    }
}