<?php

namespace App\Admin\Forms\Store;

use App\Models\ProductSku as ModelsProductSku;
use App\Models\Store\ProductSku;
use App\Models\Store\Store;
use Dcat\Admin\Contracts\LazyRenderable;
use Dcat\Admin\Traits\LazyWidget;
use Dcat\Admin\Widgets\Form;
use Illuminate\Support\Facades\DB;

class ExportGoodsForm extends Form
{
    public function handle(array $input)
    {
        $store = Store::findOrFail($input['store_id']);
        $categotyId = $input['category_id'];
        $amount = $input['amount'];
        try {
            DB::beginTransaction();
            // 店铺已有的商品
            $skuIds = ProductSku::where('store_id', $store->id)->pluck('product_sku_id');

            $query = ModelsProductSku::online();
            // 过滤掉已有的商品
            $query->whereNotIn('id', $skuIds);

            // 选择某一分类
            if ($categotyId) {
                $query->where('category_id', $categotyId);
            }

            $skus = $query->get();
            foreach($skus as $sku) {
                ProductSku::create([
                    'store_id' => $store->id,
                    'product_sku_id' => $sku->id,
                    'status' => 1,
                    'amount' => $amount,
                ]);
            }

            DB::commit();
            return $this->response()->success('导入 '.$skus->count().' 个商品')->refresh();
        } catch (\Exception $e) {
            DB::rollBack();
            report($e);
            return $this->response()->error($e->getMessage());
        }
    }

    public function form()
    {
        $storeId = $this->model()->store_id;
        $this->hidden('store_id')->default($storeId);
        $this->select('category_id', '分类')->options(admin_route('api.product_categories', ['level' => 2]));
        $this->number('amount', '默认库存')->min(0)->default(1000);
        // $this->display('product', '已选商品数量')->value(1000);
        $this->display('store_product', '店铺已有商品')->value(ProductSku::where('store_id', $storeId)->count())->help('导入商品会忽略已存在的商品');
        // $this->display('export_product', '即将导入商品')->value(1000);
    }
}