package friend

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

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

// 点赞

func (this *apiComp) ZanCheck(session comm.IUserSession, req *pb.FriendZanReq) (code pb.ErrorCode) {
	if req.FriendId == "" {
		code = pb.ErrorCode_ReqParameterError
	}
	return
}

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

	var (
		target *pb.DBFriend
		err    error
		selfId string
	)

	selfId = session.GetUserId()

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

	// 不能给自己点赞
	if req.FriendId == selfId {
		code = pb.ErrorCode_FriendZanSelf
		return
	}

	// 是否已给好友点赞
	if _, ok := utils.Find(target.ZanIds, selfId); ok {
		code = pb.ErrorCode_FriendZaned
		return
	}

	//设置被点赞玩家
	target.ZanIds = append(target.ZanIds, selfId)

	if err = this.moduleFriend.modelFriend.Change(target.GetUid(), map[string]interface{}{
		"zanIds": target.ZanIds,
	}); err != nil {
		code = pb.ErrorCode_DBError
		return
	}

	rsp := &pb.FriendZanResp{
		Flag: true,
	}

	if err := session.SendMsg(string(this.moduleFriend.GetType()), FriendSubTypeZan, rsp); err != nil {
		code = pb.ErrorCode_SystemError
		return
	}

	return
}