package friend

import (
	"Open_IM/internal/push/content_struct"
	"Open_IM/internal/push/logic"
	"Open_IM/pkg/common/config"
	"Open_IM/pkg/common/constant"
	"Open_IM/pkg/common/db/mysql_model/im_mysql_model"
	"Open_IM/pkg/common/log"
	pbChat "Open_IM/pkg/proto/chat"
	pbFriend "Open_IM/pkg/proto/friend"
	"Open_IM/pkg/utils"
	"context"
)

func (s *friendServer) AddFriend(ctx context.Context, req *pbFriend.AddFriendReq) (*pbFriend.CommonResp, error) {
	log.Info(req.Token, req.OperationID, "rpc add friend is server,userid=%s", req.Uid)
	//Parse token, to find current user information
	claims, err := utils.ParseToken(req.Token)
	if err != nil {
		log.Error(req.Token, req.OperationID, "err=%s,parse token failed", err.Error())
		return &pbFriend.CommonResp{ErrorCode: config.ErrParseToken.ErrCode, ErrorMsg: config.ErrParseToken.ErrMsg}, nil
	}
	//Cannot add non-existent users
	if _, err = im_mysql_model.FindUserByUID(req.Uid); err != nil {
		log.Error(req.Token, req.OperationID, "this user not exists,cant not add friend")
		return &pbFriend.CommonResp{ErrorCode: config.ErrAddFriend.ErrCode, ErrorMsg: config.ErrSearchUserInfo.ErrMsg}, nil
	}

	//Establish a latest relationship in the friend request table
	err = im_mysql_model.ReplaceIntoFriendReq(claims.UID, req.Uid, constant.ApplicationFriendFlag, req.ReqMessage)
	if err != nil {
		log.Error(req.Token, req.OperationID, "err=%s,create friend request record failed", err.Error())
		return &pbFriend.CommonResp{ErrorCode: config.ErrAddFriend.ErrCode, ErrorMsg: config.ErrAddFriend.ErrMsg}, nil
	}
	log.Info(req.Token, req.OperationID, "rpc add friend  is success return,uid=%s", req.Uid)
	//Push message when add friend successfully
	senderInfo, errSend := im_mysql_model.FindUserByUID(claims.UID)
	receiverInfo, errReceive := im_mysql_model.FindUserByUID(req.Uid)
	if errSend == nil && errReceive == nil {
		logic.SendMsgByWS(&pbChat.WSToMsgSvrChatMsg{
			SendID:      senderInfo.UID,
			RecvID:      receiverInfo.UID,
			Content:     content_struct.NewContentStructString(0, "", senderInfo.Name+" asked to add you as a friend"),
			SendTime:    utils.GetCurrentTimestampBySecond(),
			MsgFrom:     constant.SysMsgType,
			ContentType: constant.AddFriendTip,
			SessionType: constant.SingleChatType,
			OperationID: req.OperationID,
		})
	}
	return &pbFriend.CommonResp{}, nil
}

func (s *friendServer) ImportFriend(ctx context.Context, req *pbFriend.ImportFriendReq) (*pbFriend.ImportFriendResp, error) {
	log.Info(req.Token, req.OperationID, "ImportFriend come here,args=%s", req.String())
	var resp pbFriend.ImportFriendResp
	var c pbFriend.CommonResp
	//Parse token, to find current user information
	claims, err := utils.ParseToken(req.Token)
	if err != nil {
		log.NewError(req.OperationID, "parse token failed", err.Error())
		c.ErrorCode = config.ErrAddFriend.ErrCode
		c.ErrorMsg = config.ErrParseToken.ErrMsg
		return &pbFriend.ImportFriendResp{CommonResp: &c, FailedUidList: req.UidList}, nil
	}

	if !utils.IsContain(claims.UID, config.Config.Manager.AppManagerUid) {
		log.NewError(req.OperationID, "not manager uid", claims.UID)
		c.ErrorCode = config.ErrAddFriend.ErrCode
		c.ErrorMsg = "not authorized"
		return &pbFriend.ImportFriendResp{CommonResp: &c, FailedUidList: req.UidList}, nil
	}
	if _, err = im_mysql_model.FindUserByUID(req.OwnerUid); err != nil {
		log.NewError(req.OperationID, "this user not exists,cant not add friend", req.OwnerUid)
		c.ErrorCode = config.ErrAddFriend.ErrCode
		c.ErrorMsg = "this user not exists,cant not add friend"
		return &pbFriend.ImportFriendResp{CommonResp: &c, FailedUidList: req.UidList}, nil
	}
	for _, v := range req.UidList {
		if _, fErr := im_mysql_model.FindUserByUID(v); fErr != nil {
			c.ErrorMsg = "some uid establish failed"
			c.ErrorCode = 408
			resp.CommonResp = &c
			resp.FailedUidList = append(resp.FailedUidList, v)
		} else {
			if _, err = im_mysql_model.FindFriendRelationshipFromFriend(req.OwnerUid, v); err != nil {
				//Establish two single friendship
				err1 := im_mysql_model.InsertToFriend(req.OwnerUid, v, 1)
				if err1 != nil {
					resp.FailedUidList = append(resp.FailedUidList, v)
					log.NewError(req.OperationID, "err1,create friendship failed", req.OwnerUid, v, err1.Error())
				}
				err2 := im_mysql_model.InsertToFriend(v, req.OwnerUid, 1)
				if err2 != nil {
					log.NewError(req.OperationID, "err2,create friendship failed", v, req.OwnerUid, err2.Error())
				}
				if err1 == nil && err2 == nil {
					var name, faceUrl string
					n := content_struct.NotificationContent{IsDisplay: 1, DefaultTips: constant.FriendAcceptTip}
					r, err := im_mysql_model.FindUserByUID(v)
					if err != nil {
						log.NewError(req.OperationID, "get info failed", err.Error(), v)
					}
					if r != nil {
						name, faceUrl = r.Name, r.Icon
					}

					logic.SendMsgByWS(&pbChat.WSToMsgSvrChatMsg{
						SendID:         v,
						RecvID:         req.OwnerUid,
						SenderFaceURL:  faceUrl,
						SenderNickName: name,
						Content:        n.ContentToString(),
						SendTime:       utils.GetCurrentTimestampByNano(),
						MsgFrom:        constant.UserMsgType,                //Notification message identification
						ContentType:    constant.AcceptFriendApplicationTip, //Add friend flag
						SessionType:    constant.SingleChatType,
						OperationID:    req.OperationID,
					})
				} else {
					resp.CommonResp.ErrorMsg = "some uid establish failed"
					resp.CommonResp.ErrorCode = 408
					resp.FailedUidList = append(resp.FailedUidList, v)
				}
			}
		}

	}
	return &resp, nil

}