// protoc -I=. -I=$GOPATH/src --go_out=plugins=grpc:. *.proto
syntax = "proto3";

package imparse.v1;
option go_package = "gitlab.33.cn/chat/imparse/proto";

enum Channel {
    ToUser = 0;
    ToGroup = 1;
}

// common msg define
enum MsgType {
    System          = 0;
    Text            = 1;
    Audio           = 2;
    Image           = 3;
    Video           = 4;
    File            = 5;
    Card            = 6;
    Notice          = 7;
    Forward         = 8;
    RTCCall         = 9;
    Transfer        = 10;
    Collect         = 11;
    RedPacket       = 12;
    ContactCard     = 13;
}

message Proto {
    // event define
    enum EventType {
        common       = 0;
        commonAck    = 1;
        Signal       = 2;
        SYSNotice    = 3;
    }
    EventType eventType = 1;
    bytes     body      = 2;
}

message Common {
    Channel channelType = 1;
    int64  mid         = 2;
    string seq         = 3;
    string from        = 4;
    string target      = 5;
    MsgType msgType    = 6;
    bytes  msg         = 7;
    uint64 datetime    = 8;
    Source source      = 9;
    Reference reference = 10;
}

message Source {
    Channel    channelType = 1;
    SourceUser from        = 2;
    SourceUser target      = 3;
}

message SourceUser {
    string id   = 1;
    string name = 2;
}

message CommonAck {
    int64  mid    = 2;
    uint64 datetime = 8;
}

message Reference {
    int64 topic   = 1;
    int64 ref     = 2;
}