package shop

import (
	"go_dreamfactory/comm"
	"go_dreamfactory/pb"
	cfg "go_dreamfactory/sys/configure/structs"
	"go_dreamfactory/utils"
	"math"
	"time"

	"go.mongodb.org/mongo-driver/bson/primitive"
	"google.golang.org/protobuf/proto"
)

//参数校验
func (this *apiComp) BuyCheck(session comm.IUserSession, req *pb.ShopBuyReq) (code pb.ErrorCode) {
	if req.ShopType == 0 || req.GoodsId == 0 || req.BuyNum <= 0 {
		code = pb.ErrorCode_ReqParameterError
	}
	return
}

///获取用户商品列表
func (this *apiComp) Buy(session comm.IUserSession, req *pb.ShopBuyReq) (code pb.ErrorCode, data proto.Message) {
	var (
		err      error
		ok       bool
		conf     *cfg.GameShopitemData
		shopitem *pb.DBShopItem
		need     []*cfg.Gameatn
		give     []*cfg.Gameatn
	)
	if code = this.BuyCheck(session, req); code != pb.ErrorCode_Success {
		return
	}

	if conf, err = this.module.configure.GetShopItemsConfigure(req.GoodsId); err != nil {
		code = pb.ErrorCode_SystemError
		return
	}
	if shopitem, ok = this.module.modelShopItems.QueryUserShopDataByGoodId(session.GetUserId(), req.GoodsId); !ok { //没有购买记录
		shopitem = &pb.DBShopItem{
			Id:          primitive.NewObjectID().Hex(),
			Uid:         session.GetUserId(),
			GoodsId:     conf.Key,
			BuyNum:      map[int32]int32{1: 0, 2: 0, 3: 0, 4: 0, 5: 0},
			LastBuyTime: map[int32]int64{1: 0, 2: 0, 3: 0, 4: 0, 5: 0},
		}
	}
	need = make([]*cfg.Gameatn, len(conf.Need))
	for i, v := range conf.Need {
		need[i] = &cfg.Gameatn{
			A: v.A,
			T: v.T,
			N: int32(math.Ceil(float64(v.N)*float64(conf.Sale)/float64(1000))) * req.BuyNum,
		}
	}

	give = make([]*cfg.Gameatn, len(conf.Iteminfo))
	for i, v := range conf.Iteminfo {
		give[i] = &cfg.Gameatn{
			A: v.A,
			T: v.T,
			N: v.N * req.BuyNum,
		}
	}

	if code = this.module.ConsumeRes(session, need, true); code != pb.ErrorCode_Success {
		return
	}
	if code = this.module.DispenseRes(session, give, true); code != pb.ErrorCode_Success {
		return
	}
	if conf.Buyminnum-shopitem.BuyNum[int32(req.ShopType)] < req.BuyNum {
		code = pb.ErrorCode_ShopGoodsIsSoldOut
		return
	}

	shopitem.BuyNum[int32(req.ShopType)] += req.BuyNum
	shopitem.LastBuyTime[int32(req.ShopType)] = time.Now().Unix()
	if !ok {
		this.module.modelShopItems.AddList(session.GetUserId(), shopitem.Id, shopitem)
	} else {
		this.module.modelShopItems.ChangeList(session.GetUserId(), shopitem.Id, map[string]interface{}{
			"buyNum":      shopitem.BuyNum,
			"lastBuyTime": shopitem.LastBuyTime,
		})
	}
	//随机任务
	this.module.ModuleRtask.SendToRtask(session, comm.Rtype64, 1)
	for _, v := range give {
		if v.A == comm.ItemType {
			this.module.ModuleRtask.SendToRtask(session, comm.Rtype65, v.N, utils.ToInt32(v.T))
		}
	}
	this.module.ModuleRtask.SendToRtask(session, comm.Rtype66, 1, int32(req.ShopType))
	for _, v := range need {
		if v.A == comm.AttrType && (v.T == comm.ResGold || v.T == comm.ResDiamond) {
			this.module.ModuleRtask.SendToRtask(session, comm.Rtype67, v.N, utils.ToInt32(v.T))
		}
	}
	session.SendMsg(string(this.module.GetType()), "buy", &pb.ShopBuyResp{IsSucc: true})
	return
}