syntax = "proto3";

package IM.Message;
import "IM.BaseDefine.proto";
option java_package = "com.blt.talk.common.code.proto";

option optimize_for = LITE_RUNTIME;

//service id  0x0003
message IMMsgData{
	//cmd id:		0x0301
	uint64 from_user_id = 1;				//消息发送方
	uint64 to_session_id = 2;				//消息接受方
	uint64 msg_id = 3;
	uint32 create_time = 4;
	IM.BaseDefine.MsgType msg_type = 5;
	bytes msg_data = 6;
	bytes attach_data = 20;
}

message IMMsgDataAck{
	//cmd id:		0x0302
	uint64 user_id = 1;			//发送此信令的用户id
	uint64 session_id = 2;
	uint64 msg_id = 3;
	IM.BaseDefine.SessionType session_type = 4;
}

message IMMsgDataReadAck{
	//cmd id:		0x0303
	uint64 user_id = 1;			//发送此信令的用户id
	uint64 session_id = 2;
	uint64 msg_id = 3;
	IM.BaseDefine.SessionType session_type = 4;
}

message IMMsgDataReadNotify{
	//cmd id:		0x0304
	uint64 user_id = 1;			//发送此信令的用户id
	uint64 session_id = 2;
	uint64 msg_id = 3;
	IM.BaseDefine.SessionType session_type = 4;
}

message IMClientTimeReq{
	//cmd id:		0x0305
}

message IMClientTimeRsp{
	//cmd id:		0x0306
	uint32 server_time = 1;
}

message IMUnreadMsgCntReq{
	//cmd id:		0x0307
	uint64 user_id = 1;
	bytes attach_data = 20;
}

message IMUnreadMsgCntRsp{
	//cmd id:		0x0308
	uint64 user_id = 1;
	uint32 total_cnt = 2;
	repeated IM.BaseDefine.UnreadInfo unreadinfo_list = 3;
	bytes attach_data = 20;
}

message IMGetMsgListReq{
	//cmd id:		0x0309
	uint64 user_id = 1;
	IM.BaseDefine.SessionType session_type = 2;
	uint64 session_id = 3;
	uint64 msg_id_begin = 4;
	uint32 msg_cnt = 5;
	bytes attach_data = 20;
}

//对于群而言，如果消息数目返回的数值小于请求的cnt,则表示群的消息能拉取的到头了，更早的消息没有权限拉取。
//如果msg_cnt 和 msg_id_begin计算得到的最早消息id与实际返回的最早消息id不一致，说明服务器消息有缺失，需要
//客户端做一个缺失标记，避免下次再次拉取。
message IMGetMsgListRsp{
	//cmd id:		0x030a
	uint64 user_id = 1;
	IM.BaseDefine.SessionType session_type = 2;
	uint64 session_id = 3;
	uint64 msg_id_begin = 4;
	repeated IM.BaseDefine.MsgInfo msg_list = 5;
	bytes attach_data = 20;
}

message IMGetLatestMsgIdReq{
	//cmd id: 		0x030b
	uint64 user_id = 1;
	IM.BaseDefine.SessionType session_type = 2;
	uint64 session_id = 3;
	bytes attach_data = 20;
}

message IMGetLatestMsgIdRsp{
	//cmd id:		0x030c
	uint64 user_id = 1;
	IM.BaseDefine.SessionType session_type = 2;
	uint64 session_id = 3;
	uint64 latest_msg_id = 4;
	bytes attach_data = 20;
}

message IMGetMsgByIdReq{
	//cmd id: 		0x030d
	uint64 user_id = 1;
	IM.BaseDefine.SessionType session_type = 2;
	uint64 session_id = 3;
	repeated uint64 msg_id_list = 4;
	bytes attach_data = 20;
}

message IMGetMsgByIdRsp{
	//cmd id:		0x030e
	uint64 user_id = 1;
	IM.BaseDefine.SessionType session_type = 2;
	uint64 session_id = 3;
	repeated IM.BaseDefine.MsgInfo msg_list = 4;
	bytes attach_data = 20;
}