package shop

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

	"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
		conf     *cfg.GameShopitemData
		shopData *pb.DBShop
		filed    string
		record   *pb.UserShopData
		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 shopData, err = this.module.modelShop.QueryUserShopData(session.GetUserId()); err != nil { //没有购买记录
		code = pb.ErrorCode_DBError
		return
	}
	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,
		}
	}

	switch req.ShopType {
	case pb.ShopType_GoldShop:
		filed = "goldShop"
		record = shopData.GoldShop
		break
	case pb.ShopType_DiamondShop:
		filed = "diamondShop"
		record = shopData.DiamondShop
		break
	case pb.ShopType_PVEShop:
		filed = "pveShop"
		record = shopData.PveShop
		break
	case pb.ShopType_PVPShop:
		filed = "pvpShop"
		record = shopData.PvpShop
		break
	case pb.ShopType_AllianceShop:
		filed = "allianceShop"
		record = shopData.AllianceShop
		break
	}
	if record == nil {
		record = &pb.UserShopData{
			Buy: map[int32]int32{},
		}
	}
	if conf.Buyminnum-record.Buy[req.GoodsId] < req.BuyNum {
		code = pb.ErrorCode_ShopGoodsIsSoldOut
		return
	}
	record.Buy[req.GoodsId] += req.BuyNum
	if code = this.module.ConsumeRes(session, need, true); code != pb.ErrorCode_Success {
		return
	}
	this.module.modelShop.Change(session.GetUserId(), map[string]interface{}{filed: record})
	if !conf.Preview {
		if code = this.module.DispenseRes(session, give, true); code != pb.ErrorCode_Success {
			return
		}
	} else {
		if code = this.module.equip.AddEquipment(session, record.Preview[req.GoodsId]); code != pb.ErrorCode_Success {
			return
		}
	}

	//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
}