package friend

import (
	"go_dreamfactory/comm"
	"go_dreamfactory/lego/sys/log"
	"go_dreamfactory/pb"
	"go_dreamfactory/utils"
)

//好友申请

func (this *apiComp) ApplyCheck(session comm.IUserSession, req *pb.FriendApplyReq) (errdata *pb.ErrorData) {
	if req.FriendId == "" {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_ReqParameterError,
			Title: pb.ErrorCode_ReqParameterError.ToString(),
		}
		this.module.Error("好友申请参数错误", log.Field{Key: "uid", Value: session.GetUserId()}, log.Field{Key: "params", Value: req.String()})
	}
	return
}

func (this *apiComp) Apply(session comm.IUserSession, req *pb.FriendApplyReq) (errdata *pb.ErrorData) {
	if errdata = this.ApplyCheck(session, req); errdata != nil {
		return
	}

	var (
		err    error
		self   *pb.DBFriend
		target *pb.DBFriend
	)

	uid := session.GetUserId()

	//判断是否是自己
	if req.FriendId == uid {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendNotSelf,
			Title: pb.ErrorCode_FriendNotSelf.ToString(),
		}
		return
	}

	//获取玩家自己好友数据
	self = this.module.modelFriend.GetFriend(uid)
	if self == nil {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendSelfNoData,
			Title: pb.ErrorCode_FriendSelfNoData.ToString(),
		}
		return
	}

	globalConf := this.module.globalConf
	//判断是否超过最大好友数量
	if len(self.FriendIds) >= int(globalConf.FriendMaxnum) {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendSelfMax,
			Title: pb.ErrorCode_FriendSelfMax.ToString(),
		}
		return
	}

	//判断是否是好友
	if _, ok := utils.Find(self.FriendIds, req.FriendId); ok {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendYet,
			Title: pb.ErrorCode_FriendYet.ToString(),
		}
		return
	}

	//获取好友数据
	target = this.module.modelFriend.GetFriend(req.FriendId)
	if target == nil {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendTargetNoData,
			Title: pb.ErrorCode_FriendTargetNoData.ToString(),
		}
		return
	}

	//判断自己是否在目标用户的申请列表中
	if _, ok := utils.Find(target.ApplyIds, self.Uid); ok {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendApplyYet,
			Title: pb.ErrorCode_FriendApplyYet.ToString(),
		}
		return
	}

	//判断对方是否也超过最大好友数量
	if len(target.FriendIds) >= int(globalConf.FriendMaxnum) {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendTargetMax,
			Title: pb.ErrorCode_FriendTargetMax.ToString(),
		}
		return
	}

	//判断目标用户是否在黑名单中
	if _, ok := utils.Find(self.BlackIds, req.FriendId); ok {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendSelfBlackYet,
			Title: pb.ErrorCode_FriendSelfBlackYet.ToString(),
		}
		return
	}

	//判断是否在对方的黑名单中
	if _, ok := utils.Find(target.BlackIds, self.Uid); ok {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendTargetBlackYet,
			Title: pb.ErrorCode_FriendTargetBlackYet.ToString(),
		}
		return
	}

	//将自己加入到目标用户的申请列表中
	if target.ApplyIds == nil {
		target.ApplyIds = []string{}
	}
	target.ApplyIds = append(target.ApplyIds, session.GetUserId())

	if err = this.module.modelFriend.Change(req.FriendId, map[string]interface{}{
		"applyIds": target.ApplyIds,
	}); err != nil {
		errdata = &pb.ErrorData{
			Code:  pb.ErrorCode_FriendApplyError,
			Title: pb.ErrorCode_FriendApplyError.ToString(),
		}
		this.module.Error("好友申请",
			log.Field{Key: "uid", Value: uid},
			log.Field{Key: "params", Value: req.FriendId},
			log.Field{Key: "err", Value: err.Error()},
		)
		return
	}

	resp := &pb.FriendApplyResp{
		UserId:   session.GetUserId(),
		FriendId: req.FriendId,
	}

	session.SendMsg(string(this.module.GetType()), FriendSubTypeApply, resp)
	return
}