<?php

namespace App\Model\Seller;

use App\Enums\BoolEnum;
use App\Enums\SellerLevel;
use App\Exceptions\JingCaiException;
use App\Model\BaseModel;
use App\Model\Config;
use App\Model\Traits\PasswordTrait;
use App\Utils\Helps;
use App\Utils\ThrowException;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\DB;

class Shop extends BaseModel
{
    use PasswordTrait;

    const SHOP_STATUS = [BoolEnum::NO => '关闭', BoolEnum::YES => '正常'];

    protected $casts = [
        'withdraw_type' => 'array',
    ];
    protected $appends = [
        'announcement_img_full_url'
    ];

    public function shopExtra() {
        return $this->hasOne(ShopExtra::class, 'shop_id', 'id');
    }

    public function agentSeller()
    {
        return $this->hasOne(Seller::class,  'id', 'agent_seller_id');
    }

    public function getAnnouncementImgFullUrlAttribute()
    {
        $avatar = $this->announcement_img_url;
        if (!$avatar) {
            return '';
        }
        return Helps::fullUrl($avatar);
    }

    public function balanceActive()
    {
        return $this->balance_withdraw + $this->balance_cash;
    }

    public static function generateShopSn($prefix = 'S')
    {
        $shopSn = new ShopSn();
        $shopSn->save();
        return $prefix . $shopSn->id;
    }

    public static function balanceRecharge($shopId, $money)
    {
        $balanceWithdraw = $money * Config::getShopRechargeWithdrawLv();
        $balanceCash     = $money - $balanceWithdraw;
        return self::balanceIncr($shopId, $balanceCash, $balanceWithdraw);
    }

    public static function balanceIncr($shopId, $cash, $withdraw = 0)
    {
        return Shop::where('id', $shopId)->update([
            'balance_withdraw' => DB::raw("balance_withdraw + {$withdraw}"),
            'balance_cash'     => DB::raw("balance_cash + {$cash}"),
        ]);
    }

    /**
     * 减余额
     * @param $money
     * @return mixed
     */
    public static function balanceReduce($shopId, $money)
    {
        DB::beginTransaction();
        try {
            /** @var Shop $shop */
            $shop = Shop::lockForUpdate()->find($shopId);
            ThrowException::isTrue($shop->balanceActive() < $money, '店铺余额不足');

            // 先扣可提现，再扣不可提现
            $reduceWithdraw = 0;
            $reduceCash     = 0;
            if ($shop->balance_withdraw >= $money) {
                $reduceWithdraw = $money;
            } else {
                $reduceWithdraw = $shop->balance_withdraw;
                $reduceCash     = $money - $shop->balance_withdraw;
            }
            $shop->balance_withdraw -= $reduceWithdraw;
            $shop->balance_cash     -= $reduceCash;
            $shop->save();
            DB::commit();
        } catch (JingCaiException $exception) {
            DB::rollBack();
            throw $exception;
        } catch (\Exception $exception) {
            DB::rollBack();
            throw $exception;
        }
    }
}