@0x92a7c8962141ef12;

using Go = import "/go.capnp";
$Go.package("commonbackend");
$Go.import("git.terah.dev/imterah/hermes/backend/commonbackend");

enum Protocol {
  tcp @0;
  udp @1;
}

enum StatusCode {
  success @0;
  failure @1; 
}

struct Start {
  id        @0 :UInt8 = 0;
  arguments @1 :Data;
}

struct Stop {
  id @0 :UInt8 = 1;
}

struct AddProxy {
  id         @0 :UInt8 = 2;
  sourceIP   @1 :Data;
  sourcePort @2 :UInt16;
  destPort   @3 :UInt16;
  protocol   @4 :Protocol;
}

struct RemoveProxy {
  id         @0 :UInt8 = 3;
  sourceIP   @1 :Data;
  sourcePort @2 :UInt16;
  destPort   @3 :UInt16;
  protocol   @4 :Protocol;
}

struct ProxyStatusRequest {
  id         @0 :UInt8 = 4;
  sourceIP   @1 :Data;
  sourcePort @2 :UInt16;
  destPort   @3 :UInt16;
  protocol   @4 :Protocol;
}

struct ProxyStatusResponse {
  id         @0 :UInt8 = 5;
  sourceIP   @1 :Data;
  sourcePort @2 :UInt16;
  destPort   @3 :UInt16;
  protocol   @4 :Protocol;
  isActive   @5 :Bool;
}

struct ProxyInstanceRequest {
  id @0 :UInt8 = 6;
}

struct ProxyInstanceResponse {
  id @0      :UInt8 = 7;
  proxies @1 :List(ProxyInstance);

  struct ProxyInstance {
    sourceIP   @0 :Text;
    sourcePort @1 :UInt16;
    destPort   @2 :UInt16;
    protocol   @3 :Protocol;
  }
}

struct BackendStatusRequest {
  id @0 :UInt8 = 8;
}

struct BackendStatusResponse {
  id         @0 :UInt8 = 9;
  isRunning  @1 :Bool;
  statusCode @2 :StatusCode;
  message    @3 :Text;
}

struct ProxyConnectionsRequest {
  id @0 :UInt8 = 10;
}

struct ProxyConnectionsResponse {
  id          @0 :UInt8 = 11;
  connections @1 :List(Connection);

  struct Connection {
    sourceIP   @0 :Data;
    sourcePort @1 :UInt16;
    destPort   @2 :UInt16;
    clientIP   @3 :Data;
    clientPort @4 :UInt16;
  }
}

struct CheckClientParameters {
  id         @0 :UInt8 = 12;
  sourceIP   @1 :Data;
  sourcePort @2 :UInt16;
  destPort   @3 :UInt16;
  protocol   @4 :Protocol;
}

struct CheckServerParameters {
  id        @0 :UInt8 = 13;
  arguments @1 :Data;
}

struct CheckParametersResponse {
  id           @0 :UInt8 = 14;
  inResponseTo @1 :InResponseTo;
  isValid      @2 :Bool;
  message      @3 :Text;

  enum InResponseTo {
    checkClientParameters @0;
    checkServerParameters @1;
  }
}