syntax = "proto3";

package agent;

option go_package = "l_vpn_proto/proto";

service WireGuardAgent {
  rpc GetClientConfigs(GetClientConfigsRequest) returns (GetClientConfigsResponse);
  rpc RegisterClient(RegisterClientRequest) returns (RegisterClientResponse);
  rpc UnregisterClient(UnregisterClientRequest) returns (UnregisterClientResponse);
  rpc GetServerStatus(GetServerStatusRequest) returns (GetServerStatusResponse);
  rpc PingHosts(PingHostsRequest) returns (PingHostsResponse);
}

message GetClientConfigsRequest {}

message ClientConfig {
  string name = 1;
  string public_key = 2;
  string private_key = 3;
  string endpoint = 4;
  string allowed_ips = 5;
  string created_at = 6;
}

message GetClientConfigsResponse {
  bool success = 1;
  string error = 2;
  repeated ClientConfig clients = 3;
}

message RegisterClientRequest {
  string name = 1;
  string allowed_ips = 2;
}

message RegisterClientResponse {
  bool success = 1;
  string error = 2;
  ClientConfig client = 3;
}

message UnregisterClientRequest {
  string public_key = 1;
}

message UnregisterClientResponse {
  bool success = 1;
  string error = 2;
}

message GetServerStatusRequest {}

message GetServerStatusResponse {
  bool success = 1;
  string error = 2;
  string interface_name = 3;
  string public_key = 4;
  string listening_port = 5;
  int32 peers_count = 6;
}

message PingHostsRequest {
  repeated string hosts = 1;
}

message PingResult {
  string host = 1;
  double latency_ms = 2;  // -1 if unreachable
  bool reachable = 3;
  string error = 4;
}

message PingHostsResponse {
  bool success = 1;
  string error = 2;
  repeated PingResult results = 3;
}