package moonfantasy

import (
	"go_dreamfactory/comm"
	"go_dreamfactory/lego/sys/mgo"
	"go_dreamfactory/pb"
	cfg "go_dreamfactory/sys/configure/structs"

	"google.golang.org/protobuf/proto"
)

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

///询问怪物是否可以挑战
func (this *apiComp) Buy(session comm.IUserSession, req *pb.MoonfantasyBuyReq) (code pb.ErrorCode, data proto.Message) {
	var (
		umfantasy  *pb.DBUserMFantasy
		challengeD *cfg.GameDreamlandChallengeData
		need       []*cfg.Gameatn
		err        error
	)
	if code = this.BuyCheck(session, req); code != pb.ErrorCode_Success {
		return
	}
	if umfantasy, err = this.module.modelUserMF.queryUsermfantasy(session.GetUserId()); err != nil && err != mgo.MongodbNil {
		code = pb.ErrorCode_CacheReadError
		return
	}
	need = make([]*cfg.Gameatn, 0)
	for i := int32(0); i < req.BuyNum; i++ {
		if challengeD, err = this.module.configure.GetchallengeData(umfantasy.BuyNum + i + 1); err != nil {
			code = pb.ErrorCode_ConfigNoFound
			return
		}
		if challengeD == nil {
			code = pb.ErrorCode_ConfigNoFound
			return
		}
		need = append(need, challengeD.Need...)
	}

	if code = this.module.ConsumeRes(session, need, true); code != pb.ErrorCode_Success {
		return
	}
	umfantasy.BuyNum += req.BuyNum
	umfantasy.BattleNum += req.BuyNum
	this.module.modelUserMF.Change(session.GetUserId(), map[string]interface{}{
		"buyNum":    umfantasy.BuyNum,
		"battleNum": umfantasy.BattleNum,
	})
	session.SendMsg(string(this.module.GetType()), "buy", &pb.MoonfantasyBuyResp{Issucc: true, BattleNum: umfantasy.BattleNum})
	return
}