syntax = "proto3";

option go_package = "relay/internal/proto";

package proto;

/* Mouse messages */

// MouseMove message
message ProtoMouseMove {
  int32 x = 1;
  int32 y = 2;
}

// MouseMoveAbs message
message ProtoMouseMoveAbs {
  int32 x = 1;
  int32 y = 2;
}

// MouseWheel message
message ProtoMouseWheel {
  int32 x = 1;
  int32 y = 2;
}

// MouseKeyDown message
message ProtoMouseKeyDown {
  int32 key = 1;
}

// MouseKeyUp message
message ProtoMouseKeyUp {
  int32 key = 1;
}

/* Keyboard messages */

// KeyDown message
message ProtoKeyDown {
  int32 key = 1;
}

// KeyUp message
message ProtoKeyUp {
  int32 key = 1;
}

/* Controller messages */

// ControllerAttach message
message ProtoControllerAttach {
  string id = 1; // One of the following enums: "ps", "xbox" or "switch"
  int32 session_slot = 2; // Session specific slot number (0-3)
  string session_id = 3; // Session ID of the client
}

// ControllerDetach message
message ProtoControllerDetach {
  int32 session_slot = 1; // Session specific slot number (0-3)
  string session_id = 2; // Session ID of the client
}

// ControllerButton message
message ProtoControllerButton {
  int32 session_slot = 1; // Session specific slot number (0-3)
  string session_id = 2; // Session ID of the client
  int32 button = 3; // Button code (linux input event code)
  bool pressed = 4; // true if pressed, false if released
}

// ControllerTriggers message
message ProtoControllerTrigger {
  int32 session_slot = 1; // Session specific slot number (0-3)
  string session_id = 2; // Session ID of the client
  int32 trigger = 3; // Trigger number (0 for left, 1 for right)
  int32 value = 4; // trigger value (-32768 to 32767)
}

// ControllerSticks message
message ProtoControllerStick {
  int32 session_slot = 1; // Session specific slot number (0-3)
  string session_id = 2; // Session ID of the client
  int32 stick = 3; // Stick number (0 for left, 1 for right)
  int32 x = 4; // X axis value (-32768 to 32767)
  int32 y = 5; // Y axis value (-32768 to 32767)
}

// ControllerAxis message
message ProtoControllerAxis {
  int32 session_slot = 1; // Session specific slot number (0-3)
  string session_id = 2; // Session ID of the client
  int32 axis = 3; // Axis number (0 for d-pad horizontal, 1 for d-pad vertical)
  int32 value = 4; // axis value (-1 to 1)
}

// ControllerRumble message
message ProtoControllerRumble {
  int32 session_slot = 1; // Session specific slot number (0-3)
  string session_id = 2; // Session ID of the client
  int32 low_frequency = 3; // Low frequency rumble (0-65535)
  int32 high_frequency = 4; // High frequency rumble (0-65535)
  int32 duration = 5; // Duration in milliseconds
}

/* WebRTC + signaling */

message RTCIceCandidateInit {
  string candidate = 1;
  optional uint32 sdpMLineIndex = 2;
  optional string sdpMid = 3;
  optional string usernameFragment = 4;
}

message RTCSessionDescriptionInit {
  string sdp = 1;
  string type = 2;
}

// ProtoICE message
message ProtoICE {
  RTCIceCandidateInit candidate = 1;
}

// ProtoSDP message
message ProtoSDP {
  RTCSessionDescriptionInit sdp = 1;
}

// ProtoRaw message
message ProtoRaw {
  string data = 1;
}

// ProtoClientRequestRoomStream message
message ProtoClientRequestRoomStream {
  string room_name = 1;
  string session_id = 2;
}

// ProtoClientDisconnected message
message ProtoClientDisconnected {
  string session_id = 1;
  repeated int32 controller_slots = 2;
}

// ProtoServerPushStream message
message ProtoServerPushStream {
  string room_name = 1;
}