<?php

namespace App\Admin\Controllers\Store;

use App\Models\Store\Store;
use App\Models\Tag;
use Dcat\Admin\{Form, Admin};
use Dcat\Admin\Http\Controllers\AdminController;
use Dcat\Admin\Layout\Content;
use Dcat\Admin\Models\Administrator;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Dcat\Admin\Traits\HasFormResponse;
use Illuminate\Validation\Rule;

class StockController extends Controller
{
    use HasFormResponse;

    public function create($store_id)
    {
        $store = Store::findOrFail($store_id);
        $form = Form::make();
        $form->select('tag', '类目')->options(Tag::where('type', Tag::TYPE_STORE_STOCK)->pluck('name', 'id'));
        $form->text('tag_name', '自定义类目');
        $form->select('product', '商品')->options($store->productSkus()->select(['store_product_skus.id', 'product_skus.name'])->pluck('name', 'id'))->required();
        $form->number('amount', '库存')->help('正数为增加, 负数为减少')->default(0)->required();
        $form->text('remarks', '备注');
        return (new Content())->title('新增')->body($form);
    }

    public function store($store_id, Request $request)
    {
        $request->validate([
            'amount' => ['required', Rule::notIn([0])],
            'product' => 'required',
            'tag' => 'required_without:tag_name'
        ], [
            'amount.not_in' => '库存不能为0',
            'tag.required_without' => '类目必填',
        ]);
        if ($request->filled('tag')) {
            $tag = Tag::findOrFail($request->input('tag'));
        } else {
            $tag = Tag::firstOrCreate([
                'type' => Tag::TYPE_STORE_STOCK,
                'name' => $request->input('tag_name')
            ]);
        }
        $store = Store::findOrFail($store_id);
        $product = $store->productSkus()->wherePivot('id', $request->input('product'))->firstOrFail();
        $administrator = Admin::user();
        $amount = $request->input('amount');
        if ($product->pivot->amount + $amount < 0) {
            return $this->sendResponse($this->response()->error('扣减库存不能超过现有库存'));
        }
        $store->productSkus()->updateExistingPivot($product->id, [
            'amount' => $product->pivot->amount + $amount
        ]);
        $store->stockLogs()->create([
            'administrator_id' => $administrator->id,
            'amount' => $request->input('amount'),
            'product_sku_id' => $product->id,
            'remarks' => $request->input('remarks'),
            'tag_id' => $tag->id
        ]);
        return $this->sendResponse($this->response()->success(trans('admin.save_succeeded')));
    }
}