syntax = "proto2";
package alisql;

message LogEntry
{
  required uint64 term = 1;
  required uint64 index = 2;
  required uint64 opType = 3;
  optional bytes ikey = 4;
  optional bytes value = 5;
  optional uint64 info = 6;
  optional uint64 checksum = 7;
  /* Reserve: optional uint32 groupId = 8; */
  optional bytes  opaque = 9;
}

message RDSFields
{
  optional uint32 rdsServerId = 1;
  optional uint32 source = 2;
}

message PolarFields
{
  required uint32 version = 1;
  required uint64 start_lsn = 2;
  optional bytes  extra_value = 3;
}

message CompressedLogEntries
{
  required uint32 type = 1;
  required uint32 rawSize = 2;
  required bytes  data = 3;
  optional uint32 checksum = 4;
}

message ConfigureChangeValue
{
  optional int32 ccType = 1;
  optional int32 opType = 2;
  repeated bytes addrs = 3;
  repeated bytes allServers = 4;
  repeated bytes allLearners = 5;
  optional uint64 serverId = 6;
  optional uint32 forceSync = 7;
  optional uint32 electionWeight = 8;
  optional uint64 learnerSource = 9;
  optional bool applyMode = 10;
}

message ClusterInfoEntry
{
  required uint64 serverId = 1;
  optional uint64 matchIndex = 2;
  optional uint64 nextIndex = 3;
  optional uint32 role = 4;
  optional uint64 hasVoted = 5;
  optional uint32 forceSync = 6;
  optional uint32 electionWeight = 7;
  optional uint64 learnerSource = 8;
  optional uint64 appliedIndex = 9;
  optional uint32 pipelining = 10;
}

message PaxosMsg
{
  //public members
  optional uint64 configId = 1;
  required uint64 clusterId = 2;
  required uint64 serverId = 3;
  required int32 msgType = 4;
  required uint64 term = 5;
  required uint64 msgId = 6;

  //AppendEntries Request
  optional uint64 leaderId = 7; //not used
  optional uint64 prevLogIndex = 8;
  optional uint64 prevLogTerm = 9;
  repeated LogEntry entries = 10;
  optional uint64 commitIndex = 11;
  optional bool nocache = 12;
  
  //AppendEntries Responce
  optional bool isSuccess = 13;
  //reuse lastlogindex as a hint when reject

  //RequestVote Request
  optional uint64 candidateId = 14; //not used
  optional uint64 lastLogIndex = 15;
  optional uint64 lastLogTerm = 16;
  optional uint64 force = 17;
  optional bytes addr = 18;

  //RequestVote Responce
  optional bool voteGranted = 19;

  //Heartbeat Responce extra
  optional bool ignoreCheck = 20;

  //LeaderCommand
  optional uint64 lcType = 21;
  // LeaderTransfer: lastLogIndex/commitIndex
  // PurgeLog: minMatchIndex
  optional uint64 minMatchIndex = 22;

  //LeaderCommandResponce
  // lcType/lastLogIndex/commitIndex/isSuccess

  //AppendEntries Responce
  optional uint64 appliedIndex = 23;

  //ClusterIdNotMatch
  optional uint64 newClusterId = 24;

  //Cluster info
  repeated ClusterInfoEntry ciEntries = 25;

  //For role check
  optional uint32 role = 26;

  // compressed log entries info
  optional CompressedLogEntries compressedEntries = 27;

  // extra custom info received from leader
  // note that we already have addr = 18
  optional bytes extra = 28;

  /* Reserve: optional uint32 groupId = 29; */

  /*
    Field msgError passes enum type error code.
    Extend it if necessary.
   */
  enum MsgErrorType
  {
    NONE = 0;
    APPEND = 1;
  }
  optional MsgErrorType msgError = 30;
};

message TestMsg1
{
  required uint64 id = 1;
  optional uint64 c1 = 2;
}
message TestMsg2
{
  required uint64 id = 1;
  optional uint64 c1 = 2;
  repeated uint64 c2 = 3;
}