/// Configuration for gRPC client connections.
///
/// Provides separate configurations for development and production environments
/// with appropriate security settings for each.
class GrpcConfig {
  /// The gRPC server host address.
  final String host;

  /// The gRPC server port.
  final int port;

  /// Connection timeout duration.
  final Duration timeout;

  /// Whether to use TLS for secure connections.
  ///
  /// When false, uses insecure (plaintext) credentials suitable only for
  /// development environments.
  final bool useTls;

  /// Whether to allow self-signed certificates.
  ///
  /// Only applicable when [useTls] is true. Useful for development
  /// environments with self-signed certificates.
  final bool allowSelfSignedCertificate;

  const GrpcConfig({
    required this.host,
    required this.port,
    this.timeout = const Duration(seconds: 30),
    this.useTls = true,
    this.allowSelfSignedCertificate = false,
  });

  /// Development configuration pointing to local/development gRPC server.
  ///
  /// Uses plaintext (insecure) credentials for development convenience.
  static const GrpcConfig development = GrpcConfig(
    host: '192.168.88.228',
    port: 5011,
    timeout: Duration(seconds: 30),
    useTls: false,
    allowSelfSignedCertificate: true,
  );

  /// Production configuration for the Plan B Logistics gRPC server.
  ///
  /// Uses TLS for secure communication.
  static const GrpcConfig production = GrpcConfig(
    host: 'grpc-route.goutezplanb.com',
    port: 443,
    timeout: Duration(seconds: 30),
    useTls: true,
    allowSelfSignedCertificate: false,
  );

  /// Returns the full address string in the format "host:port".
  String get address => '$host:$port';
}