<?php

namespace App\Admin\Forms;

use App\Admin\Services\OrderPackageService;
use App\Exceptions\BizException;
use App\Models\AfterSale;
use App\Models\Order;
use App\Models\OrderPackageProduct;
use App\Services\AfterSaleService;
use Dcat\Admin\Contracts\LazyRenderable;
use Dcat\Admin\Traits\LazyWidget;
use Dcat\Admin\Widgets\Form;
use Illuminate\Support\Facades\DB;
use Throwable;

class AfterSaleShippingFill extends Form implements LazyRenderable
{
    use LazyWidget;

    /**
     * 权限判断，如不需要可以删除此方法
     *
     * @param Model|Authenticatable|HasPermissions|null $user
     *
     * @return bool
     */
    protected function authorize($user): bool
    {
        return $user->can('dcat.admin.after_sales.shipping');
    }

    /**
     * Handle the form request.
     *
     * @param array $input
     *
     * @return mixed
     */
    public function handle(array $input)
    {
        $afterSaleService = new AfterSaleService();
        try {
            DB::beginTransaction();
            $afterSale = AfterSale::where('state', AfterSale::STATE_SHIPPING)->findOrFail($this->payload['id']);
            //处理售后
            $afterSaleService->shippingFill($afterSale, $input['shipping_number']);
            /** 处理补发逻辑 **/
            //获取售后商品数量
            $fillQuantity = $afterSale->num;
            $packageProduct = OrderPackageProduct::where('order_product_id', $afterSale->order_product_id)->where('quantity', '>', $fillQuantity)->first();
            if (!$packageProduct) {
                throw new BizException('补发包裹未找到或者售后补发数量异常');
            }
            //调整已发货包裹商品数量
            $packageProduct->decrement('quantity', $fillQuantity);
            //回滚对应订单商品待发货数量；
            $packageProduct->orderProduct->increment('remain_quantity', $fillQuantity);
            //回滚订单状态
            if ($afterSale->order->isCompleted()) {
                $afterSale->order->update([
                    'status'=>Order::STATUS_PAID,
                    'shipping_state'=>Order::SHIPPING_STATE_PROCESSING,
                    'completed_at'=>null,
                ]);
            } elseif ($afterSale->order->isShipped()) {
                $afterSale->order->update([
                    'shipping_state'=>Order::SHIPPING_STATE_PROCESSING,
                ]);
            }
            //自动帮他生成新的发货单
            $orderPackageService = new OrderPackageService();
            $orderPackageService->createPackage($afterSale->order, [
                'shipping_company'=>$input['shipping_company'],
                'shipping_number'=>$input['shipping_number'],
                'packages'=>[
                    [
                        'order_product_id'=>$afterSale->order_product_id,
                        'quantity' =>$fillQuantity,
                    ],
                ],
            ]);
            DB::commit();
        } catch (Throwable $th) {
            DB::rollBack();
            report($th);
            return $this->response()->error('操作失败：'.$th->getMessage());
        }

        return $this->response()
                    ->success(__('admin.update_succeeded'))
                    ->refresh();
    }

    /**
     * Build a form here.
     */
    public function form()
    {
        $this->select('shipping_company', '快递公司')->options([
            '圆通速递'=>'圆通速递',
            '韵达快递'=>'韵达快递',
            '中通快递'=>'中通快递',
            '申通快递'=>'申通快递',
            '百世快递'=>'百世快递',
            'EMS'=>'EMS',
            '顺丰速运'=>'顺丰速运',
            '德邦快递'=>'德邦快递',
        ])->required();
        $this->text('shipping_number', '快递单号')->required();
        // $this->text('remarks', '填写补货物流单号')->required();
        $this->confirm('是否确认补货完成', '该操作不可逆，确认后将完成该售后单。');
    }
}