import 'dart:async';

import 'package:change_case/change_case.dart';

import 'veilid_stub.dart'
    if (dart.library.io) 'veilid_ffi.dart'
    if (dart.library.js) 'veilid_js.dart';

//////////////////////////////////////////////////////////

//////////////////////////////////////
/// JSON Encode Helper
Object? veilidApiToEncodable(Object? value) {
  if (value == null) {
    return value;
  }
  switch (value.runtimeType) {
    case AttachmentState:
      return (value as AttachmentState).json;
    case VeilidLogLevel:
      return (value as VeilidLogLevel).json;
    case VeilidConfigLogLevel:
      return (value as VeilidConfigLogLevel).json;
  }
  throw UnsupportedError('Cannot convert to JSON: $value');
}

//////////////////////////////////////
/// AttachmentState

enum AttachmentState {
  detached,
  attaching,
  attachedWeak,
  attachedGood,
  attachedStrong,
  fullyAttached,
  overAttached,
  detaching,
}

extension AttachmentStateExt on AttachmentState {
  String get json {
    return name.toPascalCase();
  }
}

AttachmentState attachmentStateFromJson(String j) {
  return AttachmentState.values.byName(j.toCamelCase());
}

//////////////////////////////////////
/// VeilidLogLevel

enum VeilidLogLevel {
  error,
  warn,
  info,
  debug,
  trace,
}

extension VeilidLogLevelExt on VeilidLogLevel {
  String get json {
    return name.toPascalCase();
  }
}

VeilidLogLevel veilidLogLevelFromJson(String j) {
  return VeilidLogLevel.values.byName(j.toCamelCase());
}

//////////////////////////////////////
/// VeilidConfigLogLevel

enum VeilidConfigLogLevel {
  off,
  error,
  warn,
  info,
  debug,
  trace,
}

extension VeilidConfigLogLevelExt on VeilidConfigLogLevel {
  String get json {
    return name.toPascalCase();
  }
}

VeilidConfigLogLevel veilidConfigLogLevelFromJson(String j) {
  return VeilidConfigLogLevel.values.byName(j.toCamelCase());
}

//////////////////////////////////////
/// VeilidConfig

class VeilidConfigHTTPS {
  bool enabled;
  String listenAddress;
  String path;
  String? url;

  VeilidConfigHTTPS({
    required this.enabled,
    required this.listenAddress,
    required this.path,
    this.url,
  });

  Map<String, dynamic> get json {
    return {
      'enabled': enabled,
      'listen_address': listenAddress,
      'path': path,
      'url': url
    };
  }

  VeilidConfigHTTPS.fromJson(Map<String, dynamic> json)
      : enabled = json['enabled'],
        listenAddress = json['listen_address'],
        path = json['path'],
        url = json['url'];
}

////////////

class VeilidConfigHTTP {
  bool enabled;
  String listenAddress;
  String path;
  String? url;

  VeilidConfigHTTP({
    required this.enabled,
    required this.listenAddress,
    required this.path,
    this.url,
  });

  Map<String, dynamic> get json {
    return {
      'enabled': enabled,
      'listen_address': listenAddress,
      'path': path,
      'url': url
    };
  }

  VeilidConfigHTTP.fromJson(Map<String, dynamic> json)
      : enabled = json['enabled'],
        listenAddress = json['listen_address'],
        path = json['path'],
        url = json['url'];
}

////////////

class VeilidConfigApplication {
  VeilidConfigHTTPS https;
  VeilidConfigHTTP http;

  VeilidConfigApplication({
    required this.https,
    required this.http,
  });

  Map<String, dynamic> get json {
    return {
      'https': https.json,
      'http': http.json,
    };
  }

  VeilidConfigApplication.fromJson(Map<String, dynamic> json)
      : https = VeilidConfigHTTPS.fromJson(json['https']),
        http = VeilidConfigHTTP.fromJson(json['http']);
}

////////////

class VeilidConfigUDP {
  bool enabled;
  int socketPoolSize;
  String listenAddress;
  String? publicAddress;

  VeilidConfigUDP(
      {required this.enabled,
      required this.socketPoolSize,
      required this.listenAddress,
      this.publicAddress});

  Map<String, dynamic> get json {
    return {
      'enabled': enabled,
      'socket_pool_size': socketPoolSize,
      'listen_address': listenAddress,
      'public_address': publicAddress,
    };
  }

  VeilidConfigUDP.fromJson(Map<String, dynamic> json)
      : enabled = json['enabled'],
        socketPoolSize = json['socket_pool_size'],
        listenAddress = json['listen_address'],
        publicAddress = json['publicAddress'];
}

////////////

class VeilidConfigTCP {
  bool connect;
  bool listen;
  int maxConnections;
  String listenAddress;
  String? publicAddress;

  VeilidConfigTCP(
      {required this.connect,
      required this.listen,
      required this.maxConnections,
      required this.listenAddress,
      this.publicAddress});

  Map<String, dynamic> get json {
    return {
      'connect': connect,
      'listen': listen,
      'max_connections': maxConnections,
      'listen_address': listenAddress,
      'public_address': publicAddress,
    };
  }

  VeilidConfigTCP.fromJson(Map<String, dynamic> json)
      : connect = json['connect'],
        listen = json['listen'],
        maxConnections = json['max_connections'],
        listenAddress = json['listen_address'],
        publicAddress = json['publicAddress'];
}

////////////

class VeilidConfigWS {
  bool connect;
  bool listen;
  int maxConnections;
  String listenAddress;
  String path;
  String? url;

  VeilidConfigWS(
      {required this.connect,
      required this.listen,
      required this.maxConnections,
      required this.listenAddress,
      required this.path,
      this.url});

  Map<String, dynamic> get json {
    return {
      'connect': connect,
      'listen': listen,
      'max_connections': maxConnections,
      'listen_address': listenAddress,
      'path': path,
      'url': url,
    };
  }

  VeilidConfigWS.fromJson(Map<String, dynamic> json)
      : connect = json['connect'],
        listen = json['listen'],
        maxConnections = json['max_connections'],
        listenAddress = json['listen_address'],
        path = json['path'],
        url = json['url'];
}

////////////

class VeilidConfigWSS {
  bool connect;
  bool listen;
  int maxConnections;
  String listenAddress;
  String path;
  String? url;

  VeilidConfigWSS(
      {required this.connect,
      required this.listen,
      required this.maxConnections,
      required this.listenAddress,
      required this.path,
      this.url});

  Map<String, dynamic> get json {
    return {
      'connect': connect,
      'listen': listen,
      'max_connections': maxConnections,
      'listen_address': listenAddress,
      'path': path,
      'url': url,
    };
  }

  VeilidConfigWSS.fromJson(Map<String, dynamic> json)
      : connect = json['connect'],
        listen = json['listen'],
        maxConnections = json['max_connections'],
        listenAddress = json['listen_address'],
        path = json['path'],
        url = json['url'];
}

////////////

class VeilidConfigProtocol {
  VeilidConfigUDP udp;
  VeilidConfigTCP tcp;
  VeilidConfigWS ws;
  VeilidConfigWSS wss;

  VeilidConfigProtocol({
    required this.udp,
    required this.tcp,
    required this.ws,
    required this.wss,
  });

  Map<String, dynamic> get json {
    return {
      'udp': udp.json,
      'tcp': tcp.json,
      'ws': ws.json,
      'wss': wss.json,
    };
  }

  VeilidConfigProtocol.fromJson(Map<String, dynamic> json)
      : udp = VeilidConfigUDP.fromJson(json['udp']),
        tcp = VeilidConfigTCP.fromJson(json['tcp']),
        ws = VeilidConfigWS.fromJson(json['ws']),
        wss = VeilidConfigWSS.fromJson(json['wss']);
}

////////////

class VeilidConfigTLS {
  String certificatePath;
  String privateKeyPath;
  int connectionInitialTimeoutMs;

  VeilidConfigTLS({
    required this.certificatePath,
    required this.privateKeyPath,
    required this.connectionInitialTimeoutMs,
  });

  Map<String, dynamic> get json {
    return {
      'certificate_path': certificatePath,
      'private_key_path': privateKeyPath,
      'connection_initial_timeout_ms': connectionInitialTimeoutMs,
    };
  }

  VeilidConfigTLS.fromJson(Map<String, dynamic> json)
      : certificatePath = json['certificate_path'],
        privateKeyPath = json['private_key_path'],
        connectionInitialTimeoutMs = json['connection_initial_timeout_ms'];
}

////////////

class VeilidConfigDHT {
  int? resolveNodeTimeoutMs;
  int resolveNodeCount;
  int resolveNodeFanout;
  int maxFindNodeCount;
  int? getValueTimeoutMs;
  int getValueCount;
  int getValueFanout;
  int? setValueTimeoutMs;
  int setValueCount;
  int setValueFanout;
  int minPeerCount;
  int minPeerRefreshTimeMs;
  int validateDialInfoReceiptTimeMs;

  VeilidConfigDHT(
      {this.resolveNodeTimeoutMs,
      required this.resolveNodeCount,
      required this.resolveNodeFanout,
      required this.maxFindNodeCount,
      this.getValueTimeoutMs,
      required this.getValueCount,
      required this.getValueFanout,
      this.setValueTimeoutMs,
      required this.setValueCount,
      required this.setValueFanout,
      required this.minPeerCount,
      required this.minPeerRefreshTimeMs,
      required this.validateDialInfoReceiptTimeMs});

  Map<String, dynamic> get json {
    return {
      'resolve_node_timeout_ms': resolveNodeTimeoutMs,
      'resolve_node_count': resolveNodeCount,
      'resolve_node_fanout': resolveNodeFanout,
      'max_find_node_count': maxFindNodeCount,
      'get_value_timeout_ms': getValueTimeoutMs,
      'get_value_count': getValueCount,
      'get_value_fanout': getValueFanout,
      'set_value_timeout_ms': setValueTimeoutMs,
      'set_value_count': setValueCount,
      'set_value_fanout': setValueFanout,
      'min_peer_count': minPeerCount,
      'min_peer_refresh_time_ms': minPeerRefreshTimeMs,
      'validate_dial_info_receipt_time_ms': validateDialInfoReceiptTimeMs
    };
  }

  VeilidConfigDHT.fromJson(Map<String, dynamic> json)
      : resolveNodeTimeoutMs = json['resolve_node_timeout_ms'],
        resolveNodeCount = json['resolve_node_count'],
        resolveNodeFanout = json['resolve_node_fanout'],
        maxFindNodeCount = json['max_find_node_count'],
        getValueTimeoutMs = json['get_value_timeout_ms'],
        getValueCount = json['get_value_count'],
        getValueFanout = json['get_value_fanout'],
        setValueTimeoutMs = json['set_value_timeout_ms'],
        setValueCount = json['set_value_count'],
        setValueFanout = json['set_value_fanout'],
        minPeerCount = json['min_peer_count'],
        minPeerRefreshTimeMs = json['min_peer_refresh_time_ms'],
        validateDialInfoReceiptTimeMs =
            json['validate_dial_info_receipt_time_ms'];
}

////////////

class VeilidConfigRPC {
  int concurrency;
  int queueSize;
  int? maxTimestampBehindMs;
  int? maxTimestampAheadMs;
  int timeoutMs;
  int maxRouteHopCount;

  VeilidConfigRPC(
      {required this.concurrency,
      required this.queueSize,
      this.maxTimestampBehindMs,
      this.maxTimestampAheadMs,
      required this.timeoutMs,
      required this.maxRouteHopCount});

  Map<String, dynamic> get json {
    return {
      'concurrency': concurrency,
      'queue_size': queueSize,
      'max_timestamp_behind_ms': maxTimestampBehindMs,
      'max_timestamp_ahead_ms': maxTimestampAheadMs,
      'timeout_ms': timeoutMs,
      'max_route_hop_count': maxRouteHopCount,
    };
  }

  VeilidConfigRPC.fromJson(Map<String, dynamic> json)
      : concurrency = json['concurrency'],
        queueSize = json['queue_size'],
        maxTimestampBehindMs = json['max_timestamp_behind_ms'],
        maxTimestampAheadMs = json['max_timestamp_ahead_ms'],
        timeoutMs = json['timeout_ms'],
        maxRouteHopCount = json['max_route_hop_count'];
}

////////////

class VeilidConfigLeases {
  int maxServerSignalLeases;
  int maxServerRelayLeases;
  int maxClientSignalLeases;
  int maxClientRelayLeases;

  VeilidConfigLeases(
      {required this.maxServerSignalLeases,
      required this.maxServerRelayLeases,
      required this.maxClientSignalLeases,
      required this.maxClientRelayLeases});

  Map<String, dynamic> get json {
    return {
      'max_server_signal_leases': maxServerSignalLeases,
      'max_server_relay_leases': maxServerRelayLeases,
      'max_client_signal_leases': maxClientSignalLeases,
      'max_client_relay_leases': maxClientRelayLeases
    };
  }

  VeilidConfigLeases.fromJson(Map<String, dynamic> json)
      : maxServerSignalLeases = json['max_server_signal_leases'],
        maxServerRelayLeases = json['max_server_relay_leases'],
        maxClientSignalLeases = json['max_client_signal_leases'],
        maxClientRelayLeases = json['max_client_relay_leases'];
}

////////////

class VeilidConfigNetwork {
  int maxConnections;
  int connectionInitialTimeoutMs;
  String nodeId;
  String nodeIdSecret;
  List<String> bootstrap;
  VeilidConfigRPC rpc;
  VeilidConfigDHT dht;
  bool upnp;
  bool natpmp;
  bool enableLocalPeerScope;
  int restrictedNatRetries;
  VeilidConfigTLS tls;
  VeilidConfigApplication application;
  VeilidConfigProtocol protocol;
  VeilidConfigLeases leases;

  VeilidConfigNetwork({
    required this.maxConnections,
    required this.connectionInitialTimeoutMs,
    required this.nodeId,
    required this.nodeIdSecret,
    required this.bootstrap,
    required this.rpc,
    required this.dht,
    required this.upnp,
    required this.natpmp,
    required this.enableLocalPeerScope,
    required this.restrictedNatRetries,
    required this.tls,
    required this.application,
    required this.protocol,
    required this.leases,
  });

  Map<String, dynamic> get json {
    return {
      'max_connections': maxConnections,
      'connection_initial_timeout_ms': connectionInitialTimeoutMs,
      'node_id': nodeId,
      'node_id_secret': nodeIdSecret,
      'bootstrap': bootstrap,
      'rpc': rpc.json,
      'dht': dht.json,
      'upnp': upnp,
      'natpmp': natpmp,
      'enable_local_peer_scope': enableLocalPeerScope,
      'restricted_nat_retries': restrictedNatRetries,
      'tls': tls.json,
      'application': application.json,
      'protocol': protocol.json,
      'leases': leases.json,
    };
  }

  VeilidConfigNetwork.fromJson(Map<String, dynamic> json)
      : maxConnections = json['max_connections'],
        connectionInitialTimeoutMs = json['connection_initial_timeout_ms'],
        nodeId = json['node_id'],
        nodeIdSecret = json['node_id_secret'],
        bootstrap = json['bootstrap'],
        rpc = VeilidConfigRPC.fromJson(json['rpc']),
        dht = VeilidConfigDHT.fromJson(json['dht']),
        upnp = json['upnp'],
        natpmp = json['natpmp'],
        enableLocalPeerScope = json['enable_local_peer_scope'],
        restrictedNatRetries = json['restricted_nat_retries'],
        tls = VeilidConfigTLS.fromJson(json['tls']),
        application = VeilidConfigApplication.fromJson(json['application']),
        protocol = VeilidConfigProtocol.fromJson(json['protocol']),
        leases = VeilidConfigLeases.fromJson(json['leases']);
}

////////////

class VeilidConfigTableStore {
  String directory;
  bool delete;

  VeilidConfigTableStore({
    required this.directory,
    required this.delete,
  });

  Map<String, dynamic> get json {
    return {'directory': directory, 'delete': delete};
  }

  VeilidConfigTableStore.fromJson(Map<String, dynamic> json)
      : directory = json['directory'],
        delete = json['delete'];
}

////////////

class VeilidConfigBlockStore {
  String directory;
  bool delete;

  VeilidConfigBlockStore({
    required this.directory,
    required this.delete,
  });

  Map<String, dynamic> get json {
    return {'directory': directory, 'delete': delete};
  }

  VeilidConfigBlockStore.fromJson(Map<String, dynamic> json)
      : directory = json['directory'],
        delete = json['delete'];
}

////////////

class VeilidConfigProtectedStore {
  bool allowInsecureFallback;
  bool alwaysUseInsecureStorage;
  String insecureFallbackDirectory;
  bool delete;

  VeilidConfigProtectedStore({
    required this.allowInsecureFallback,
    required this.alwaysUseInsecureStorage,
    required this.insecureFallbackDirectory,
    required this.delete,
  });

  Map<String, dynamic> get json {
    return {
      'allow_insecure_fallback': allowInsecureFallback,
      'always_use_insecure_storage': alwaysUseInsecureStorage,
      'insecure_fallback_directory': insecureFallbackDirectory,
      'delete': delete,
    };
  }

  VeilidConfigProtectedStore.fromJson(Map<String, dynamic> json)
      : allowInsecureFallback = json['allow_insecure_fallback'],
        alwaysUseInsecureStorage = json['always_use_insecure_storage'],
        insecureFallbackDirectory = json['insecure_fallback_directory'],
        delete = json['delete'];
}

////////////

class VeilidConfigCapabilities {
  bool protocolUDP;
  bool protocolConnectTCP;
  bool protocolAcceptTCP;
  bool protocolConnectWS;
  bool protocolAcceptWS;
  bool protocolConnectWSS;
  bool protocolAcceptWSS;

  VeilidConfigCapabilities({
    required this.protocolUDP,
    required this.protocolConnectTCP,
    required this.protocolAcceptTCP,
    required this.protocolConnectWS,
    required this.protocolAcceptWS,
    required this.protocolConnectWSS,
    required this.protocolAcceptWSS,
  });

  Map<String, dynamic> get json {
    return {
      'protocol_udp': protocolUDP,
      'protocol_connect_tcp': protocolConnectTCP,
      'protocol_accept_tcp': protocolAcceptTCP,
      'protocol_connect_ws': protocolConnectWS,
      'protocol_accept_ws': protocolAcceptWS,
      'protocol_connect_wss': protocolConnectWSS,
      'protocol_accept_wss': protocolAcceptWSS,
    };
  }

  VeilidConfigCapabilities.fromJson(Map<String, dynamic> json)
      : protocolUDP = json['protocol_udp'],
        protocolConnectTCP = json['protocol_connect_tcp'],
        protocolAcceptTCP = json['protocol_accept_tcp'],
        protocolConnectWS = json['protocol_connect_ws'],
        protocolAcceptWS = json['protocol_accept_ws'],
        protocolConnectWSS = json['protocol_connect_wss'],
        protocolAcceptWSS = json['protocol_accept_wss'];
}

////////////

class VeilidConfig {
  String programName;
  String namespace;
  VeilidConfigLogLevel apiLogLevel;
  VeilidConfigCapabilities capabilities;
  VeilidConfigProtectedStore protectedStore;
  VeilidConfigTableStore tableStore;
  VeilidConfigBlockStore blockStore;
  VeilidConfigNetwork network;

  VeilidConfig({
    required this.programName,
    required this.namespace,
    required this.apiLogLevel,
    required this.capabilities,
    required this.protectedStore,
    required this.tableStore,
    required this.blockStore,
    required this.network,
  });

  Map<String, dynamic> get json {
    return {
      'program_name': programName,
      'namespace': namespace,
      'api_log_level': apiLogLevel.json,
      'capabilities': capabilities.json,
      'protected_store': protectedStore.json,
      'table_store': tableStore.json,
      'block_store': blockStore.json,
      'network': network.json
    };
  }

  VeilidConfig.fromJson(Map<String, dynamic> json)
      : programName = json['program_name'],
        namespace = json['namespace'],
        apiLogLevel = json['api_log_level'],
        capabilities = VeilidConfigCapabilities.fromJson(json['capabilities']),
        protectedStore =
            VeilidConfigProtectedStore.fromJson(json['protected_store']),
        tableStore = VeilidConfigTableStore.fromJson(json['table_store']),
        blockStore = VeilidConfigBlockStore.fromJson(json['block_store']),
        network = VeilidConfigNetwork.fromJson(json['network']);
}

//////////////////////////////////////
/// VeilidUpdate

abstract class VeilidUpdate {
  factory VeilidUpdate.fromJson(Map<String, dynamic> json) {
    switch (json["kind"]) {
      case "Log":
        {
          return VeilidUpdateLog(
              veilidLogLevelFromJson(json["log_level"]), json["message"]);
        }
      case "Attachment":
        {
          return VeilidUpdateAttachment(attachmentStateFromJson(json["state"]));
        }
      default:
        {
          throw VeilidAPIExceptionInternal(
              "Invalid VeilidAPIException type: ${json['kind']}");
        }
    }
  }
}

class VeilidUpdateLog implements VeilidUpdate {
  final VeilidLogLevel logLevel;
  final String message;
  //
  VeilidUpdateLog(this.logLevel, this.message);
}

class VeilidUpdateAttachment implements VeilidUpdate {
  final AttachmentState state;
  //
  VeilidUpdateAttachment(this.state);
}

//////////////////////////////////////
/// VeilidState

class VeilidState {
  final AttachmentState attachment;

  VeilidState(this.attachment);

  VeilidState.fromJson(Map<String, dynamic> json)
      : attachment = attachmentStateFromJson(json['attachment']);
}

//////////////////////////////////////
/// VeilidAPIException

abstract class VeilidAPIException implements Exception {
  factory VeilidAPIException.fromJson(Map<String, dynamic> json) {
    switch (json["kind"]) {
      case "NotInitialized":
        {
          return VeilidAPIExceptionNotInitialized();
        }
      case "AlreadyInitialized":
        {
          return VeilidAPIExceptionAlreadyInitialized();
        }
      case "Timeout":
        {
          return VeilidAPIExceptionTimeout();
        }
      case "Shutdown":
        {
          return VeilidAPIExceptionShutdown();
        }
      case "NodeNotFound":
        {
          return VeilidAPIExceptionNodeNotFound(json["node_id"]);
        }
      case "NoDialInfo":
        {
          return VeilidAPIExceptionNoDialInfo(json["node_id"]);
        }
      case "Internal":
        {
          return VeilidAPIExceptionInternal(json["message"]);
        }
      case "Unimplemented":
        {
          return VeilidAPIExceptionUnimplemented(json["unimplemented"]);
        }
      case "ParseError":
        {
          return VeilidAPIExceptionParseError(json["message"], json["value"]);
        }
      case "InvalidArgument":
        {
          return VeilidAPIExceptionInvalidArgument(
              json["context"], json["argument"], json["value"]);
        }
      case "MissingArgument":
        {
          return VeilidAPIExceptionMissingArgument(
              json["context"], json["argument"]);
        }
      default:
        {
          throw VeilidAPIExceptionInternal(
              "Invalid VeilidAPIException type: ${json['kind']}");
        }
    }
  }
}

class VeilidAPIExceptionNotInitialized implements VeilidAPIException {
  @override
  String toString() {
    return "VeilidAPIException: NotInitialized";
  }
}

class VeilidAPIExceptionAlreadyInitialized implements VeilidAPIException {
  @override
  String toString() {
    return "VeilidAPIException: AlreadyInitialized";
  }
}

class VeilidAPIExceptionTimeout implements VeilidAPIException {
  @override
  String toString() {
    return "VeilidAPIException: Timeout";
  }
}

class VeilidAPIExceptionShutdown implements VeilidAPIException {
  @override
  String toString() {
    return "VeilidAPIException: Shutdown";
  }
}

class VeilidAPIExceptionNodeNotFound implements VeilidAPIException {
  final String nodeId;

  @override
  String toString() {
    return "VeilidAPIException: NodeNotFound (nodeId: $nodeId)";
  }

  //
  VeilidAPIExceptionNodeNotFound(this.nodeId);
}

class VeilidAPIExceptionNoDialInfo implements VeilidAPIException {
  final String nodeId;

  @override
  String toString() {
    return "VeilidAPIException: NoDialInfo (nodeId: $nodeId)";
  }

  //
  VeilidAPIExceptionNoDialInfo(this.nodeId);
}

class VeilidAPIExceptionInternal implements VeilidAPIException {
  final String message;

  @override
  String toString() {
    return "VeilidAPIException: Internal ($message)";
  }

  //
  VeilidAPIExceptionInternal(this.message);
}

class VeilidAPIExceptionUnimplemented implements VeilidAPIException {
  final String message;

  @override
  String toString() {
    return "VeilidAPIException: Unimplemented ($message)";
  }

  //
  VeilidAPIExceptionUnimplemented(this.message);
}

class VeilidAPIExceptionParseError implements VeilidAPIException {
  final String message;
  final String value;

  @override
  String toString() {
    return "VeilidAPIException: ParseError ($message)\n    value: $value";
  }

  //
  VeilidAPIExceptionParseError(this.message, this.value);
}

class VeilidAPIExceptionInvalidArgument implements VeilidAPIException {
  final String context;
  final String argument;
  final String value;

  @override
  String toString() {
    return "VeilidAPIException: InvalidArgument ($context:$argument)\n    value: $value";
  }

  //
  VeilidAPIExceptionInvalidArgument(this.context, this.argument, this.value);
}

class VeilidAPIExceptionMissingArgument implements VeilidAPIException {
  final String context;
  final String argument;

  @override
  String toString() {
    return "VeilidAPIException: MissingArgument ($context:$argument)";
  }

  //
  VeilidAPIExceptionMissingArgument(this.context, this.argument);
}

//////////////////////////////////////
/// VeilidVersion

class VeilidVersion {
  final int major;
  final int minor;
  final int patch;

  VeilidVersion(this.major, this.minor, this.patch);
}

//////////////////////////////////////
/// Veilid singleton factory

abstract class Veilid {
  static late Veilid instance = getVeilid();

  Stream<VeilidUpdate> startupVeilidCore(VeilidConfig config);
  Future<VeilidState> getVeilidState();
  Future<void> changeApiLogLevel(VeilidConfigLogLevel logLevel);
  Future<void> shutdownVeilidCore();
  Future<String> debug(String command);
  String veilidVersionString();
  VeilidVersion veilidVersion();
}