package friend

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

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

//删除好友
func (this *apiComp) DelCheck(session comm.IUserSession, req *pb.FriendDelReq) (code pb.ErrorCode) {
	if req.FriendId == "" {
		code = pb.ErrorCode_ReqParameterError
		this.moduleFriend.Error("删除好友参数错误", log.Field{Key: "uid", Value: session.GetUserId()}, log.Field{Key: "params", Value: req.String()})
	}
	return
}

func (this *apiComp) Del(session comm.IUserSession, req *pb.FriendDelReq) (code pb.ErrorCode, data proto.Message) {
	if code = this.DelCheck(session, req); code != pb.ErrorCode_Success {
		return
	}

	uid := session.GetUserId()
	self := this.moduleFriend.modelFriend.GetFriend(uid)
	if self == nil {
		code = pb.ErrorCode_FriendSelfNoData
		return
	}

	// 从好友列表中删除
	selfFriendIds := utils.Deletex(self.FriendIds, req.FriendId)

	if err := this.moduleFriend.modelFriend.Change(self.Uid, map[string]interface{}{
		"friendIds": selfFriendIds,
	}); err != nil {
		this.moduleFriend.Error("删除好友",
			log.Field{Key: "uid", Value: uid},
			log.Field{Key: "params", Value: req.String()},
			log.Field{Key: "err", Value: err.Error()},
		)
		code = pb.ErrorCode_FriendApplyError
		return
	}

	target := this.moduleFriend.modelFriend.GetFriend(req.FriendId)
	if target == nil {
		code = pb.ErrorCode_FriendNotSelf
		return
	}

	// 将自己从对方好友列表中移除
	targetFriendIds := utils.DeleteString(target.FriendIds, uid)

	if err := this.moduleFriend.modelFriend.Change(req.FriendId, map[string]interface{}{
		"friendIds": targetFriendIds,
	}); err != nil {
		code = pb.ErrorCode_FriendApplyError
		this.moduleFriend.Error("删除好友",
			log.Field{Key: "uid", Value: uid},
			log.Field{Key: "params", Value: req.FriendId},
			log.Field{Key: "err", Value: err.Error()},
		)
		return
	}

	if err := session.SendMsg(string(this.moduleFriend.GetType()), FriendSubTypeDel, &pb.FriendDelResp{FriendId: req.FriendId, UserId: self.Uid}); err != nil {
		code = pb.ErrorCode_SystemError
	}

	return
}