package mainline

import (
	"go_dreamfactory/comm"
	"go_dreamfactory/pb"
	cfg "go_dreamfactory/sys/configure/structs"
)

// 参数校验
func (this *apiComp) ShopBuyCheck(session comm.IUserSession, req *pb.MainlineShopBuyReq) (errdata *pb.ErrorData) {
	if req.Shopid == 0 || req.Itemid == 0 {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_ReqParameterError,
			Title: pb.ErrorCode_ReqParameterError.ToString(),
		}
		return
	}
	return
}

// 商店购买
func (this *apiComp) ShopBuy(session comm.IUserSession, req *pb.MainlineShopBuyReq) (errdata *pb.ErrorData) {
	var (
		info     *pb.DBMainlineShop
		err      error
		shopConf *cfg.GameMainShopItemData
		bUnlock  bool
		atno     []*pb.UserAtno
	)
	bUnlock = true
	errdata = this.ShopBuyCheck(session, req)
	if errdata != nil {
		return // 参数校验失败直接返回
	}

	info, err = this.module.modelShop.getMainlineShopData(session.GetUserId())
	if err != nil {
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_DBError,
			Title:   pb.ErrorCode_DBError.ToString(),
			Message: err.Error(),
		}
		return
	}

	if shopConf, err = this.module.configure.GetMainShopConf(req.Shopid, req.Itemid); err != nil {
		errdata = &pb.ErrorData{
			Code:    pb.ErrorCode_ConfigNoFound,
			Title:   pb.ErrorCode_ConfigNoFound.ToString(),
			Message: err.Error(),
		}
		return
	}
	// 检查是否需要解锁
	if shopConf.Unlock != 0 {
		bUnlock = false
		if unlock, ok := info.Unlock[req.Shopid]; ok {
			for _, v := range unlock.Item {
				if v == req.Itemid {
					bUnlock = true
				}
			}
		}
	}
	if !bUnlock {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_MainlineShopUnlock,
			Title: pb.ErrorCode_MainlineShopUnlock.ToString(),
		}
		return
	}
	if v, ok := info.Buytime[req.Shopid]; !ok {
		item := make(map[int32]int32, 0)
		item[req.Itemid] = 1
		info.Buytime[req.Shopid] = &pb.MlineShopData{
			Item: item,
		}
	} else { // 校验是否达到限购
		if v1, ok := v.Item[req.Itemid]; !ok {
			v.Item[req.Itemid] += 1
		} else {
			if shopConf.Bugtime >= v1 { // 限购了 买不了
				errdata = &pb.ErrorData{
					Code:  pb.ErrorCode_MainlineBuyMaxCount,
					Title: pb.ErrorCode_MainlineBuyMaxCount.ToString(),
				}
				return
			}
		}
	}

	if errdata = this.module.ConsumeRes(session, shopConf.Need, true); errdata != nil {
		return
	}
	if errdata, atno = this.module.DispenseAtno(session, shopConf.Itemsell, true); errdata != nil {
		this.module.DispenseRes(session, shopConf.Need, true)
		return
	}
	this.module.modelShop.updateMainlineShopData(session.GetUserId(), info)
	session.SendMsg(string(this.module.GetType()), "shopbuy", &pb.MainlineShopBuyResp{
		Info: info,
		Item: atno,
	})
	return
}