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.Cid <= 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
		tasks    []*pb.BuriedParam = make([]*pb.BuriedParam, 0)
	)
	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.GetMlineShopConfById(req.Cid); 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 _, ok := info.Unlock[req.Cid]; ok {
			bUnlock = true
		}
	}
	if !bUnlock {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_MainlineShopUnlock,
			Title: pb.ErrorCode_MainlineShopUnlock.ToString(),
		}
		return
	}
	info.Buytime[req.Cid] += 1

	if shopConf.Bugtime > info.Buytime[req.Cid] { // 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) // 资源回退
		return
	}
	this.module.modelShop.updateMainlineShopData(session.GetUserId(), info)
	session.SendMsg(string(this.module.GetType()), "shopbuy", &pb.MainlineShopBuyResp{
		Info: info,
		Item: atno,
	})
	tasks = append(tasks, comm.GetBuriedParam(comm.Rtype236, shopConf.Shopid, 1))

	go this.module.AsynHandleSession(session.Clone(), func(session comm.IUserSession) {
		this.module.ModuleBuried.TriggerBuried(session, tasks...)
		this.module.WriteUserLog(session.GetUserId(), comm.GMResAddType, "MainlineShopBuyReq", atno)
		this.module.WriteUserLog(session.GetUserId(), comm.GMResDelType, "MainlineShopBuyReq", shopConf.Need)
	})
	return
}