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114 lines
3.7 KiB
114 lines
3.7 KiB
package cronTask
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import (
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"Open_IM/pkg/common/config"
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"Open_IM/pkg/common/db"
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"Open_IM/pkg/common/log"
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server_api_params "Open_IM/pkg/proto/sdk_ws"
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"Open_IM/pkg/utils"
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"github.com/golang/protobuf/proto"
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)
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const oldestList = 0
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const newestList = -1
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func ResetUserGroupMinSeq(operationID, groupID string, userIDList []string) error {
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var delMsgIDList [][2]interface{}
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minSeq, err := deleteMongoMsg(operationID, groupID, oldestList, &delMsgIDList)
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if err != nil {
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log.NewError(operationID, utils.GetSelfFuncName(), groupID, "deleteMongoMsg failed")
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return utils.Wrap(err, "")
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}
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for _, userID := range userIDList {
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userMinSeq, err := db.DB.GetGroupUserMinSeq(groupID, userID)
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if err != nil {
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log.NewError(operationID, utils.GetSelfFuncName(), "GetGroupUserMinSeq failed", groupID, userID, err.Error())
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continue
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}
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if userMinSeq > uint64(minSeq) {
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err = db.DB.SetGroupUserMinSeq(groupID, userID, userMinSeq)
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} else {
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err = db.DB.SetGroupUserMinSeq(groupID, userID, uint64(minSeq))
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}
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if err != nil {
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log.NewError(operationID, utils.GetSelfFuncName(), err.Error(), groupID, userID, userMinSeq, minSeq)
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}
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}
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return nil
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}
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func DeleteMongoMsgAndResetRedisSeq(operationID, userID string) error {
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var delMsgIDList [][2]interface{}
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minSeq, err := deleteMongoMsg(operationID, userID, oldestList, &delMsgIDList)
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if err != nil {
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return utils.Wrap(err, "")
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}
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log.NewDebug(operationID, utils.GetSelfFuncName(), "delMsgIDMap: ", userID, delMsgIDList)
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err = db.DB.SetUserMinSeq(userID, minSeq)
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return err
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}
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// recursion
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func deleteMongoMsg(operationID string, ID string, index int64, delMsgIDList *[][2]interface{}) (uint32, error) {
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// 从最旧的列表开始找
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msgs, err := db.DB.GetUserMsgListByIndex(ID, index)
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if err != nil {
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return 0, utils.Wrap(err, "GetUserMsgListByIndex failed")
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}
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if len(msgs.Msg) > db.GetSingleGocMsgNum() {
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log.NewWarn(operationID, utils.GetSelfFuncName(), "msgs too large", len(msgs.Msg), msgs.UID)
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}
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log.NewDebug(operationID, utils.GetSelfFuncName(), "get msgs: ", msgs.UID)
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for i, msg := range msgs.Msg {
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// 找到列表中不需要删除的消息了
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if utils.GetCurrentTimestampByMill() < msg.SendTime+int64(config.Config.Mongo.DBRetainChatRecords)*24*60*60*1000 {
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if len(*delMsgIDList) > 0 {
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var IDList []string
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for _, v := range *delMsgIDList {
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IDList = append(IDList, v[0].(string))
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}
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err := db.DB.DelMongoMsgs(IDList)
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if err != nil {
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return 0, utils.Wrap(err, "DelMongoMsgs failed")
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}
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}
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minSeq := getDelMaxSeqByIDList(*delMsgIDList)
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if i > 0 {
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msgPb := &server_api_params.MsgData{}
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err = proto.Unmarshal(msg.Msg, msgPb)
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if err != nil {
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log.NewError(operationID, utils.GetSelfFuncName(), err.Error(), ID, index)
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} else {
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err = db.DB.ReplaceMsgToBlankByIndex(msgs.UID, i-1)
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if err != nil {
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log.NewError(operationID, utils.GetSelfFuncName(), err.Error(), msgs.UID, i)
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return minSeq, nil
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}
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minSeq = msgPb.Seq - 1
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}
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}
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return minSeq, nil
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}
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}
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msgPb := &server_api_params.MsgData{}
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err = proto.Unmarshal(msgs.Msg[len(msgs.Msg)-1].Msg, msgPb)
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if err != nil {
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log.NewError(operationID, utils.GetSelfFuncName(), err.Error(), len(msgs.Msg)-1, msgs.UID)
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return 0, utils.Wrap(err, "proto.Unmarshal failed")
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}
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*delMsgIDList = append(*delMsgIDList, [2]interface{}{msgs.UID, msgPb.Seq})
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// 没有找到 代表需要全部删除掉 继续递归查找下一个比较旧的列表
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seq, err := deleteMongoMsg(operationID, utils.GetSelfFuncName(), index+1, delMsgIDList)
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if err != nil {
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return 0, utils.Wrap(err, "deleteMongoMsg failed")
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}
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return seq, nil
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}
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func getDelMaxSeqByIDList(delMsgIDList [][2]interface{}) uint32 {
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if len(delMsgIDList) == 0 {
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return 0
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}
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return delMsgIDList[len(delMsgIDList)-1][1].(uint32)
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}
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