syntax = "proto3";
package caretta_sync.remote_node;

import "caretta_sync.common.proto";
import "tripod_id.proto";
import "google/protobuf/timestamp.proto";
import "google/protobuf/duration.proto";
import "google/protobuf/empty.proto";

service RemoteNode {
    rpc Info(RemoteNodeInfoRequest) returns (RemoteNodeInfoResponse);
    rpc List(stream RemoteNodeListRequest) returns (stream RemoteNodeListResponse);
}

message RemoteNodeIdentifier {
    oneof identifier {
        tripod_id.Double id = 1;
        caretta_sync.common.PublicKey public_key = 2;
    }
}

message RemoteNodeInfoRequest {
    RemoteNodeIdentifier remote_node = 1;
}

message RemoteNodeListRequest {}

message RemoteNodeInfoResponse {
    RemoteNodeInfo remote_node_info = 1;
}

message RemoteNodeListResponse {
    RemoteNodeInfo remote_node_info = 1;
}

message RemoteNodeInfo {
    tripod_id.Double id = 1;
    bool authorized = 2;
    caretta_sync.common.PublicKey public_key = 3;
    string relay_url = 4;
    repeated RemoteNodeDirectAddrInfo addrs = 5;
    RemoteNodeConnectionType conn_type = 6;
    google.protobuf.Duration latency = 7;
    google.protobuf.Duration last_used = 8;
}

message RemoteNodeConnectionType {
    oneof conn_type {
        caretta_sync.common.SocketAddr direct = 1;
        caretta_sync.common.Url relay = 2;
        RemoteNodeConnectionTypeMixed mixed = 3;
        google.protobuf.Empty none = 4;
    }
}

message RemoteNodeConnectionTypeMixed {
    caretta_sync.common.SocketAddr socket_addr = 1;
    caretta_sync.common.Url relay_url = 2; 
}

message RemoteNodeRelayUrlInfo {
    caretta_sync.common.Url relay_url = 1;
    google.protobuf.Duration last_alive = 2;
    google.protobuf.Duration latency = 3;
}

message RemoteNodeDirectAddrInfo {
    caretta_sync.common.SocketAddr addr = 1;
    google.protobuf.Duration latency = 2;
    RemoteNodeLastControl last_control = 3;
    google.protobuf.Duration last_payload = 4;
    google.protobuf.Duration last_alive = 5;
    repeated RemoteNodeSource sources = 6;
}

message RemoteNodeLastControl {
    google.protobuf.Duration duration = 1;
    RemoteNodeControlMsg control_msg = 2;
}

enum RemoteNodeControlMsg {
    PING = 0;
    PONG = 1;
    CALL_ME_MAYBE = 2;
}

message RemoteNodeSource {
    oneof source = {
        google.protobuf.Empty saved = 1;
        google.protobuf.Empty udp = 2;
        google.protobuf.Empty Relay = 3;
        google.protobuf.Empty App = 4;
        string discovery = 5;
        string named_app = 6
    };
    google.protobuf.Duration duration = 7;
}