package friend

import (
	"go_dreamfactory/comm"
	"go_dreamfactory/pb"
	"go_dreamfactory/utils"
)

func (this *apiComp) AddblackCheck(session comm.IUserSession, req *pb.FriendBlackAddReq) (chk map[string]interface{}, code comm.ErrorCode) {
	chk = make(map[string]interface{})
	var (
		err         error
		blackNumMax = 50 //TODO 从配置中读取
	)
	self := &pb.DBFriend{UId: session.GetUserId()}
	target := &pb.DBFriend{UId: req.FriendId}

	err = this.module.modelFriend.Get(session.GetUserId(), self)
	if self == nil || err != nil {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendSelfNoData}
		return
	}

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

	//判断目标是否在好友列表里面
	if _, ok := utils.Find(self.FriendIds, req.FriendId); ok {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendYet}
		return
	}

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

	// 判断自己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
	}

	// 判断是否黑名单人数已满
	if len(self.BlackIds) >= blackNumMax {
		code = comm.ErrorCode{Code: pb.ErrorCode_FriendBlackMax}
		return
	}

	chk["self"] = self
	chk["target"] = target

	return
}

//加入黑名单
func (this *apiComp) Addblack(session comm.IUserSession, chk map[string]interface{}, req *pb.FriendBlackAddReq) (code pb.ErrorCode) {
	var (
		self *pb.DBFriend
		rsp  *pb.FriendBlackAddRsp
	)

	defer func() {
		rsp = &pb.FriendBlackAddRsp{
			FriendId: req.FriendId,
			UserId:   session.GetUserId(),
		}
		session.SendMsg(string(this.module.GetType()), FriendSubTypeAddBlack, rsp)
	}()

	if v, ok := chk["self"]; ok {
		self = v.(*pb.DBFriend)
		//将目标加入黑名单
		self.BlackIds = append(self.BlackIds, req.FriendId)

		//更新黑名单
		err := this.module.modelFriend.Change(self.UId, map[string]interface{}{
			"blackIds": self.BlackIds,
		})
		if err != nil {
			code = pb.ErrorCode_DBError
			return
		}
	}

	return
}