<?php

namespace App\Service\v3\Implementations;

use App\Commons\Log;
use App\Constants\v3\ErrorCode;
use App\Constants\v3\LogLabel;
use App\Constants\v3\OrderState;
use App\Constants\v3\OrderType;
use App\Exception\ErrorCodeException;
use App\Model\v3\Coupon;
use App\Model\v3\CouponRec;
use App\Model\v3\CouponUse;
use App\Model\v3\Goods;
use App\Model\v3\GoodsActivity;
use App\Model\v3\Order;
use App\Model\v3\OrderGoods;
use App\Model\v3\OrderMain;
use App\Model\v3\ShoppingCart;
use App\Model\v3\Store;
use App\Model\v3\UserAddress;
use App\Service\v3\Interfaces\CouponRecServiceInterface;
use App\Service\v3\Interfaces\CouponServiceInterface;
use App\Service\v3\Interfaces\DeliveryMoneyServiceInterface;
use App\Service\v3\Interfaces\GoodsActivityServiceInterface;
use App\Service\v3\Interfaces\GoodsServiceInterface;
use App\Service\v3\Interfaces\PaymentServiceInterface;
use Hyperf\DbConnection\Db;
use Hyperf\Di\Annotation\Inject;
use App\Service\v3\Interfaces\OrderOnlineServiceInterface;
use Hyperf\Snowflake\IdGeneratorInterface;
use Hyperf\Utils\ApplicationContext;

class OrderOnlineService implements OrderOnlineServiceInterface
{

    /**
     * @Inject
     * @var Log
     */
    protected $log;

    /**
     * @Inject
     * @var DeliveryMoneyServiceInterface
     */
    protected $deliveryService;

    /**
     * @Inject
     * @var CouponRecServiceInterface
     */
    protected $couponRecService;

    /**
     * @Inject
     * @var CouponServiceInterface
     */
    protected $couponService;

    /**
     * @Inject
     * @var GoodsActivityServiceInterface
     */
    protected $goodsActivityService;

    /**
     * @Inject
     * @var GoodsServiceInterface
     */
    protected $goodsService;

    /**
     * @Inject
     * @var PaymentServiceInterface
     */
    protected $paymentService;

    /**
     * 下单
     * @param $marketId
     * @param $userId
     * @param $userAddrId
     * @param $storeList
     * @param $totalMoney
     * @param string $deliveryTimeNote
     * @param int $serviceMoney
     * @param null $receiveCouponIds
     * @param string $plat
     * @return array[]
     */
	public function do($marketId, $userId, $userAddrId, $storeList, $totalMoney, $deliveryTimeNote='尽快送达', $serviceMoney=0, $receiveCouponIds=null, $plat=''){

	    Db::beginTransaction();
        try {

            $currentTime = time();
            bcscale(6);
            // 用户收货地址
            $userAddr = UserAddress::query()->find($userAddrId);
            // 获取配送费用
            $deliveryAmount = $this->deliveryService->do($userAddr->lat, $userAddr->lng);

            // 处理购物车数据，计算订单金额、子订单数据处理等
            $totalAmount = 0; # 实付金额
            $orderAmount = 0; # 订单金额
            $dataMain = []; # 主订单
            $dataChildren = []; # 子订单
            $dataOrderGoods = []; # 订单商品
            $storeTypeIds = []; # 订单中的商户类型，用于校验红包

            foreach ($storeList as $key => &$storeItem) {

                $storeId = $storeItem->store_id;

                // 子订单金额
                $subAmount = 0;

                // 店铺分类
                $storeType = Store::query()->where(['id' => $storeId])->value('category_id');
                $storeTypeIds[] = (string)$storeType;
                // 店铺今天的订单数
                $count = Order::query()
                    ->where(['store_id' => $storeId])
                    ->whereBetween('created_at', [strtotime(date('Y-m-d 00:00:00')), strtotime(date('Y-m-d 23:59:59'))])
                    ->count();

                // 用户购物车数据
                $cartIds = explode(',', $storeItem->cart_ids);
                $carts = ShoppingCart::query()->whereIn('id', $cartIds)->where(['market_id' => $marketId])->get();
                foreach ($carts as $k => &$cart) {

                    // 查个商品
                    $goods = [];
                    if ($cart->activity_type == 1) {
                        $goods = Goods::query()->lockForUpdate()->find($cart->goods_id);
                        $check = $this->goodsService->check($goods->id, $cart->num);
                        if (true !== $check) {
                            throw new ErrorCodeException($check, '[商品失效]'.$cart->goods_id);
                        }
                    } elseif ($cart->activity_type == 2) {
                        $goods = GoodsActivity::query()->lockForUpdate()->find($cart->goods_id);
                        $check = $this->goodsActivityService->check($goods->id, $cart->num, $userId);
                        if (true !== $check) {
                            throw new ErrorCodeException($check, '[商品失效]'.$cart->goods_id);
                        }

                        if ($goods->can_use_coupon!=1 && $receiveCouponIds) {
                            throw new ErrorCodeException(ErrorCode::GOODS_ACTIVITY_CANNOT_USE_COUPON, '[商品失效]'.$cart->goods_id);
                        }
                    }

                    if (empty($goods)) {
                        throw new ErrorCodeException(ErrorCode::ORDER_GOODS_NOT_AVAILABLE);
                    }

                    // 库存判断
                    if ($goods->is_infinite !=1 && $goods->inventory < $cart->num) {
                        throw new ErrorCodeException(ErrorCode::ORDER_GOODS_INVENTORY_LIMIT);
                    }

                    // 算金额
                    $goodsAmount = bcmul((string)$goods->price, (string)$cart->num); # 当前商品的金额
                    $subAmount = bcadd((string)$subAmount, (string)$goodsAmount); # 当前店铺子订单的金额

                    // 订单商品数据
                    $dataOrderGoods[$storeId][] = [
                        'order_id' => 0,
                        'goods_id' => $cart->goods_id,
                        'activity_type' => $cart->activity_type,
                        'number' => $cart->num,
                        'price' => $goods->price,
                        'original_price' => $goods->original_price,
                        'vip_price' => $goods->vip_price,
                        'name' => $goods->name,
                        'goods_unit' => $goods->goods_unit,
                        'cover_img' => $goods->cover_img,
                        'spec' => $goods->spec,
                    ];
                }

                // 子订单数据
                $dataChildren[] = [
                    'order_main_id' => 0,
                    'user_id' => $userId,
                    'store_id' => $storeId,
                    'money' => bcadd((string)$subAmount, '0', 2),
                    'oid' => $count + 1,
                    'order_num' => date('YmdHis').mt_rand(1000, 9999),
                    'note' => $storeItem->note
                ];

                // 订单金额
                $orderAmount = bcadd((string)$orderAmount, (string)$subAmount);
            }

            // 优惠券的使用
            $couponMoney = 0;
            // 优惠券数据
            $couponRec = CouponRec::query()->lockForUpdate()->whereIn('id', $receiveCouponIds)->get()->toArray();
            if (!empty($couponRec)) {
                $couponsCanUse = $this->couponRecService->allForOrderOlAvailable($totalAmount, $userId, $marketId, 2, $storeTypeIds);
                $couponCanUseIds = array_column($couponsCanUse, 'id');
                $couponCanUseIds = array_intersect($couponCanUseIds, $receiveCouponIds);
                $couponCannotUseIds = array_diff($receiveCouponIds, $couponCanUseIds);

                if (empty($couponCanUseIds)||!empty($couponCannotUseIds)) {
                    throw new ErrorCodeException(ErrorCode::COUPON_NOT_AVAILABLE);
                }

                // 计算红包折扣金额
                foreach ($couponsCanUse as $key => $coupon) {
                    if (!in_array($coupon->id, $receiveCouponIds)) {
                        continue;
                    }

                    if ($coupon->discount_type == Coupon::DISCOUNT_TYPE_CASH) {
                        $couponMoney = bcadd($couponMoney, $coupon->discounts, 2);
                    } elseif ($coupon->discount_type == Coupon::DISCOUNT_TYPE_RATE) {
                        $discountRate = bcdiv($coupon->discounts,10);
                        $discountRate = bcsub(1,$discountRate);
                        $discountMoney = bcmul($orderAmount, $discountRate);
                        $couponMoney = bcadd($couponMoney, $discountMoney, 2);
                    }
                }
            }

            // 获取分布式全局ID
            $generator = ApplicationContext::getContainer()->get(IdGeneratorInterface::class);
            $globalOrderId = $generator->generate();

            $orderAmount = bcadd((string)$orderAmount, '0', 2);
            $totalAmount = bcadd((string)$totalAmount, (string)$orderAmount);
            $totalAmount = bcadd((string)$totalAmount, (string)$deliveryAmount);
            $totalAmount = bcadd((string)$totalAmount, (string)$serviceMoney);
            $totalAmount = bcsub((string)$totalAmount, (string)$couponMoney, 2);

            // 校验订单总金额
            if ($totalAmount != $totalMoney) {
                throw new ErrorCodeException(ErrorCode::ORDER_TOTAL_AMOUNT_ERROR);
            }

            $dataMain = [
                'market_id' => $marketId,
                'order_num' => $globalOrderId,
                'global_order_id' => $globalOrderId,
                'user_id' => $userId,
                'type' => OrderType::ONLINE,
                'money' => $totalAmount,
                'total_money' => $orderAmount,
                'services_money' => $serviceMoney,
                'coupon_money' => $couponMoney,
                'delivery_money' => $deliveryAmount,
                'state' => OrderState::UNPAID,
                'tel' => $userAddr->tel,
                'address' => $userAddr->address.$userAddr->doorplate,
                'lat' => $userAddr->lat,
                'lng' => $userAddr->lng,
                'name' => $userAddr->user_name,
                'plat' => $plat,
                'delivery_time_note' => $deliveryTimeNote
            ];

            // 生成主订单
            $orderMain = OrderMain::query()->create($dataMain);
            $orderMainId = $orderMain->id;

            // 处理子订单
            foreach ($dataChildren as $key => &$child) {
                $child['order_main_id'] = $orderMainId;
                $orderChild = Order::query()->create($child);
                $orderChildId = $orderChild->id;

                foreach ($dataOrderGoods[$child['store_id']] as $k => &$orderGoods) {
                    $orderGoods['order_id'] = $orderChildId;
                    $orderGoods['created_at'] = $currentTime;
                    $orderGoods['updated_at'] = $currentTime;
                }
                OrderGoods::query()->insert($dataOrderGoods[$child['store_id']]);
            }

            // 判断是否有购买多个特价商品
            $check = $this->goodsActivityService->checkOrderActivityCount($dataOrderGoods);
            if(!$check){
                throw new ErrorCodeException(ErrorCode::GOODS_ACTIVITY_RESTRICT_LIMIT, '[同一订单同种类型活动商品]'.json_encode($dataOrderGoods));
            }

            // 订单成功，做一些处理
            // 活动商品购买记录
            foreach ($dataOrderGoods as $key => &$goods) {
                foreach ($goods as $k => &$goodsItem)
                if ($goodsItem['activity_type'] == 2) {
                    $this->goodsActivityService->cacheRecord($goodsItem['goods_id'], $goodsItem['number'], $userId);
                }
            }

            // 优惠券红包使用记录
            if (is_array($couponRec)&&!empty($couponRec)) {
                # 使用记录、更新当前优惠券
                foreach ($couponRec as $key => &$coupon) {

                    $couponUse = [
                        'user_id' => $coupon['user_id'],
                        'user_receive_id' => $coupon['id'],
                        'coupon_id' => $coupon['coupon_id'],
                        'order_main_id' => $orderMainId,
                        'use_time' => $currentTime,
                        'return_time' => 0,
                        'number' => 1,
                        'status' => 1,
                        'update_time' => 0,
                    ];

                    $insertRes = CouponUse::query()->insert($couponUse);
                    if ($insertRes) {
                        $numberRemain = $coupon['number_remain'] - 1;
                        if ($numberRemain == 0) {
                            $status = 2;
                        } elseif ($numberRemain > 0 && $numberRemain < $coupon['number']) {
                            $status = 1;
                        } elseif ($numberRemain == $coupon['number']) {
                            $status = 0;
                        }

                        $upRes = CouponRec::query()->where(['id' => $coupon['id']])->update(['number_remain' => $numberRemain, 'status' => $status]);
                        if (!$upRes) {
                            Db::rollBack();
                            throw new ErrorCodeException(ErrorCode::COUPON_USE_FAILURE);
                        }
                        // 缓存使用记录
                        $usedRes = $this->couponService->cacheTodayCouponUsed($coupon['user_id'], $coupon['coupon_id'], $coupon['id']);
                        if (!$usedRes) {
                            Db::rollBack();
                            throw new ErrorCodeException(ErrorCode::COUPON_USE_FAILURE);
                        }
                    } else {
                        Db::rollBack();
                        throw new ErrorCodeException(ErrorCode::COUPON_USE_FAILURE);
                    }

                }
            }

            Db::commit();

            // 支付
            return $this->paymentService->do($globalOrderId, $totalAmount, $userId, config('site_host') . '/wechat/notify/wxminionline');
        } catch (\Exception $e) {
            Db::rollBack();
            $this->log->event(LogLabel::ORDER_ONLINE_LOG, ['exception_msg' => $e->getMessage()]);
            throw new ErrorCodeException(ErrorCode::ORDER_ONLINE_FAIL);
        }
	}

    public function check()
    {
        // TODO: Implement check() method.
    }

    public function undo()
    {
        // TODO: Implement undo() method.
    }

    public function detailByUser($orderMainId, $userId)
    {

        $orderMain = OrderMain::with(['market'])->find($orderMainId);
        $orders = Order::query()
            ->where(['order_main_id' => $orderMainId, 'user_id' => $userId])
            ->with([
                'orderGoods',
                'store'
            ])
            ->get()->toArray();

        return ['order_main' => $orderMain, 'orders' => $orders];
    }
}