<?php

namespace App\Endpoint\Api\Http\Controllers\Order;

use App\Endpoint\Api\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\Models\{OrderPre, ProductSku};
use App\Services\OrderService;
use Illuminate\Support\Facades\DB;
use App\Exceptions\BizException;
use Throwable;
use EasyWeChat\Kernel\Http\StreamResponse;

class OrderPreController extends Controller
{
    public function store(Request $request)
    {
        $user = $request->user();
        if (!$user->userInfo->is_company) {
            throw new BizException('非内部员工' . $user->id);
        }
        $request->validate([
            'store_id' => 'required',
            'products' => 'required|array',
            'products.*.sku_id' => 'required',
            'products.*.quantity' => 'required',
            'products.*.send' => 'required',
        ], [
            'store_id.required' => '店铺ID必须',
            'products.required' => '未选择商品'
        ]);

        $products = $request->input('products');
        // 验证商品的购买数量 大于 发货数量
        foreach($products as $item) {
            $quantity = $item['quantity'];
            $send = $item['send'];
            if ($send > $quantity) {
                throw new BizException('商品购买数量大于发货数量, ' . $item['sku_id']);
            }
        }

        $order_pre = OrderPre::create([
            'user_id' => $user->id,
            'store_id' => $request->input('store_id'),
            'products' => $request->input('products'),
            'remarks' => $request->input('remarks'),
            'others' => [
                'coupon_id' => $request->input('coupon_id'),
                'note' => $request->input('note')
            ]
        ]);

        $app = $this->getWechatApp();


        $scene = http_build_query([
            'order_pre' =>  $order_pre->id,
        ]);

        $response = $app->app_code->getUnlimit($scene, [
            'page'  => 'pages/welcome/index',
            'check_path' => false,
            'env_version' => app()->isProduction() ? 'release' : 'develop',
            'width' => $request->input('width', 200),
        ]);

        if ($response instanceof StreamResponse) {
            return response()->json([
                'order_pre' => $order_pre->id,
                'image' => 'data:image/png;base64,'.base64_encode($response->getBody()),
            ]);
        }

        throw new BizException('生成失败, 请稍后再试');
    }

    public function storeOrder(Request $request)
    {
        $id = $request->input('id');
        $order_pre = OrderPre::findOrFail($id);
        $user = $request->user();

        $products = [];
        foreach($order_pre->products as $item) {
            array_push($products, [
                'sku' => ProductSku::findOrFail($item['sku_id']),
                'quantity' => $item['quantity']
            ]);
        }
        $coupon_id = data_get($order_pre, 'others.coupon_id');
        $note = data_get($order_pre, 'others.note');

        try {
            DB::beginTransaction();
            $service = new OrderService();
            $order = $service->createOrder($user, $products, null, $coupon_id, $note);
            $order->update([
                'store_id' => $order_pre->store_id,
                'inviter_id' => $order_pre->user_id,
                'source_type' => OrderPre::class,
                'source_id' => $order_pre->id,
            ]);

            DB::commit();
            return response()->json([
                'order_id' => $order->id
            ]);
        } catch (Throwable $e) {
            DB::rollBack();

            report($e);

            throw new BizException($e->getMessage());
        }
    }

    protected function getWechatApp($getway = 'default')
    {
        return \EasyWeChat\Factory::miniProgram(config('wechat.mini_program.' . $getway));
    }
}