package friend

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

func (this *apiComp) ApplyCheck(session comm.IUserSession, req *pb.FriendApplyReq) (chk map[string]interface{}, code comm.ErrorCode) {
	chk = make(map[string]interface{})
	var err error
	self := &pb.DBFriend{UId: session.GetUserId()}
	target := &pb.DBFriend{UId: req.FriendId}

	//获取玩家自己好友数据
	err = this.module.modelFriend.Get(session.GetUserId(), self)
	if self == nil || err != nil {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendSelfNoData}
		return
	}

	//获取好友数据
	err = this.module.modelFriend.Get(req.FriendId, target)
	if target == nil || err != nil {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendTargetNoData}
		return
	}

	//判断是否是自己
	if req.FriendId == session.GetUserId() {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendNotSelf}
		return
	}

	//判断是否超过最大好友数量
	//TODO 最大数从全局配置中获取
	var max int = 50
	total := len(self.FriendIds)
	if total >= max {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendSelfMax}
		return
	}

	//判断对方是否也超过最大好友数量
	ttotal := len(target.FriendIds)
	if ttotal >= max {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendTargetMax}
		return
	}

	//判断是否是好友
	if _, ok := utils.Find(self.FriendIds, req.FriendId); ok {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendYet}
		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 {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendApplyYet}
		return
	}

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

	//判断是否在对方的黑名单中
	if _, ok := utils.Find(target.BlackIds, self.UId); ok {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendTargetBlackYet}
		return
	}

	chk["self"] = self
	chk["target"] = target
	return
}

//好友申请
func (this *apiComp) Apply(session comm.IUserSession, chk map[string]interface{}, req *pb.FriendApplyReq) (code pb.ErrorCode) {
	var (
		target *pb.DBFriend
		rsp    *pb.FriendApplyRsp
	)

	defer func() {
		utils.TraceFunc(session.GetUserId(), string(this.module.GetType()), FriendSubTypeApply, req, rsp)
	}()

	defer func() {
		if code == pb.ErrorCode_Success {
			rsp = &pb.FriendApplyRsp{
				UserId:   session.GetUserId(),
				FriendId: req.FriendId,
			}
		}
		err := session.SendMsg(string(this.module.GetType()), FriendSubTypeApply, rsp)
		if err != nil {
			code = pb.ErrorCode_SystemError
			return
		}
	}()

	if v, ok := chk["target"]; !ok {
		code = pb.ErrorCode_FriendTargetNoData
		return
	} else {
		target = v.(*pb.DBFriend)
	}

	//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())

	err := this.module.modelFriend.Change(req.FriendId, map[string]interface{}{
		"applyIds": target.ApplyIds,
	})
	if err != nil {
		log.Errorf("firend Apply err:%v", err)
		code = pb.ErrorCode_FriendApplyError
		return
	}

	return
}