change file structure, replace rate_limit with the pub dependency

Signed-off-by: Sahil Kumar <[email protected]>
2021-06-03 13:38:32 +05:30
parent eac8093b22
commit d758f3df1d
39 changed files with 126 additions and 448 deletions
@@ -4,13 +4,12 @@ import 'dart:math';
 import 'package:collection/collection.dart'
    show IterableExtension, ListEquality;
 import 'package:dio/dio.dart';
-import 'package:logging/logging.dart';
 import 'package:rxdart/rxdart.dart';
-import 'package:stream_chat/src/api/retry_queue.dart';
-import 'package:stream_chat/src/core/utils.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/client/retry_queue.dart';
+import 'package:stream_chat/src/core/util/utils.dart';
+import 'package:stream_chat/src/core/error/error.dart';
 import 'package:stream_chat/src/event_type.dart';
-import 'package:stream_chat/src/extensions/rate_limit.dart';
+import 'package:rate_limiter/rate_limiter.dart';
 import 'package:stream_chat/src/core/models/attachment_file.dart';
 import 'package:stream_chat/src/core/models/channel_state.dart';
 import 'package:stream_chat/src/core/models/user.dart';
@@ -1,20 +1,19 @@
 // ignore_for_file: unnecessary_getters_setters

 import 'dart:async';
-import 'dart:convert';

 import 'package:dio/dio.dart';
 import 'package:logging/logging.dart';
 import 'package:rxdart/rxdart.dart';
-import 'package:stream_chat/src/api/channel.dart';
-import 'package:stream_chat/src/core/utils.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/client/channel.dart';
+import 'package:stream_chat/src/core/util/utils.dart';
+import 'package:stream_chat/src/core/error/error.dart';
 import 'package:stream_chat/src/location.dart';
 import 'package:stream_chat/src/ws/connection_status.dart';
 import 'package:stream_chat/src/core/api/attachment_file_uploader.dart';
 import 'package:stream_chat/src/core/api/requests.dart';
 import 'package:stream_chat/src/core/api/responses.dart';
-import 'package:stream_chat/src/api/retry_policy.dart';
+import 'package:stream_chat/src/client/retry_policy.dart';
 import 'package:stream_chat/src/ws/websocket.dart';
 import 'package:stream_chat/src/core/api/stream_chat_api.dart';
 import 'package:stream_chat/src/core/http/connection_id_manager.dart';
@@ -1,5 +1,5 @@
-import 'package:stream_chat/src/client.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/client/client.dart';
+import 'package:stream_chat/src/core/error/error.dart';

 /// The retry options
 class RetryPolicy {
@@ -3,9 +3,9 @@ import 'dart:async';
 import 'package:collection/collection.dart';
 import 'package:logging/logging.dart';
 import 'package:rxdart/rxdart.dart';
-import 'package:stream_chat/src/api/channel.dart';
-import 'package:stream_chat/src/api/retry_policy.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/client/channel.dart';
+import 'package:stream_chat/src/client/retry_policy.dart';
+import 'package:stream_chat/src/core/error/error.dart';
 import 'package:stream_chat/src/event_type.dart';
 import 'package:stream_chat/src/core/models/message.dart';
 import 'package:stream_chat/stream_chat.dart';
@@ -1,7 +1,7 @@
 import 'package:dio/dio.dart';
 import 'package:stream_chat/src/core/api/responses.dart';
 import 'package:stream_chat/src/core/http/stream_http_client.dart';
-import 'package:stream_chat/src/extensions/string_extension.dart';
+import 'package:stream_chat/src/core/util/extension.dart';
 import 'package:stream_chat/src/core/models/attachment_file.dart';

 /// Class responsible for uploading images and files to a given channel
@@ -1,5 +1,5 @@
 import 'package:json_annotation/json_annotation.dart';
-import 'package:stream_chat/src/client.dart';
+import 'package:stream_chat/src/client/client.dart';
 import 'package:stream_chat/src/core/models/channel_model.dart';
 import 'package:stream_chat/src/core/models/channel_state.dart';
 import 'package:stream_chat/src/core/models/device.dart';
@@ -9,7 +9,7 @@ import 'package:stream_chat/src/core/models/message.dart';
 import 'package:stream_chat/src/core/models/reaction.dart';
 import 'package:stream_chat/src/core/models/read.dart';
 import 'package:stream_chat/src/core/models/user.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/core/error/error.dart';

 part 'responses.g.dart';

@@ -0,0 +1,2 @@
+export 'chat_error_code.dart';
+export 'stream_chat_error.dart';
@@ -1,5 +1,5 @@
 import 'package:equatable/equatable.dart';
-import 'package:stream_chat/src/errors/chat_error_code.dart';
+import 'package:stream_chat/src/core/error/chat_error_code.dart';
 import 'package:stream_chat/stream_chat.dart';

 ///
@@ -5,8 +5,8 @@ import 'package:stream_chat/src/core/http/stream_http_client.dart';
 import 'package:stream_chat/src/core/http/token.dart';

 import 'package:stream_chat/src/core/http/token_manager.dart';
-import 'package:stream_chat/src/errors/chat_error_code.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/core/error/error.dart';
+

 ///
 class AuthInterceptor extends Interceptor {
@@ -1,5 +1,5 @@
 import 'package:dio/dio.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/core/error/error.dart';

 ///
 class StreamChatDioError extends DioError {
@@ -8,9 +8,9 @@ import 'package:stream_chat/src/core/http/interceptor/connection_id_interceptor.
 import 'package:stream_chat/src/core/http/interceptor/logging_interceptor.dart';
 import 'package:stream_chat/src/core/http/stream_chat_dio_error.dart';
 import 'package:stream_chat/src/core/http/token_manager.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/core/error/error.dart';
 import 'package:stream_chat/src/location.dart';
-import 'package:stream_chat/src/platform_detector/platform_detector.dart';
+import 'package:stream_chat/src/core/platform_detector/platform_detector.dart';
 import 'package:stream_chat/version.dart';

 import 'package:stream_chat/src/core/http/connection_id_manager.dart';
@@ -3,7 +3,7 @@ import 'dart:convert';
 import 'package:equatable/equatable.dart';
 import 'package:jose/jose.dart';
 import 'package:stream_chat/src/core/models/user.dart';
-import 'package:stream_chat/src/core/utils.dart';
+import 'package:stream_chat/src/core/util/utils.dart';

 ///
 typedef GuestTokenProvider = Future<String> Function(User user);
@@ -4,7 +4,7 @@ import 'package:equatable/equatable.dart';
 import 'package:json_annotation/json_annotation.dart';
 import 'package:stream_chat/src/core/models/action.dart';
 import 'package:stream_chat/src/core/models/attachment_file.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';
 import 'package:uuid/uuid.dart';

 part 'attachment.g.dart';
@@ -1,6 +1,6 @@
 import 'package:json_annotation/json_annotation.dart';
 import 'package:stream_chat/src/core/models/channel_config.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';
 import 'package:stream_chat/src/core/models/user.dart';

 part 'channel_model.g.dart';
@@ -1,7 +1,7 @@
 import 'package:json_annotation/json_annotation.dart';
 import 'package:stream_chat/src/core/models/channel_model.dart';
 import 'package:stream_chat/src/core/models/message.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';
 import 'package:stream_chat/stream_chat.dart';

 part 'event.g.dart';
@@ -2,7 +2,7 @@ import 'package:equatable/equatable.dart';
 import 'package:json_annotation/json_annotation.dart';
 import 'package:stream_chat/src/core/models/attachment.dart';
 import 'package:stream_chat/src/core/models/reaction.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';
 import 'package:stream_chat/src/core/models/user.dart';
 import 'package:uuid/uuid.dart';

@@ -112,7 +112,7 @@ class Message extends Equatable {

  /// The list of user mentioned in the message
  @JsonKey(
-    toJson: Serialization.userIds,
+    toJson: User.toIds,
    defaultValue: [],
  )
  final List<User> mentionedUsers;
@@ -85,7 +85,7 @@ Map<String, dynamic> _$MessageToJson(Message instance) {

  writeNotNull('type', readonly(instance.type));
  val['attachments'] = instance.attachments.map((e) => e.toJson()).toList();
-  val['mentioned_users'] = Serialization.userIds(instance.mentionedUsers);
+  val['mentioned_users'] = User.toIds(instance.mentionedUsers);
  writeNotNull('reaction_counts', readonly(instance.reactionCounts));
  writeNotNull('reaction_scores', readonly(instance.reactionScores));
  writeNotNull('latest_reactions', readonly(instance.latestReactions));
@@ -1,6 +1,6 @@
 import 'package:json_annotation/json_annotation.dart';
 import 'package:stream_chat/src/core/models/channel_model.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';
 import 'package:stream_chat/src/core/models/user.dart';

 part 'mute.g.dart';
@@ -1,7 +1,7 @@
 import 'package:json_annotation/json_annotation.dart';
 import 'package:stream_chat/src/core/models/device.dart';
 import 'package:stream_chat/src/core/models/mute.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';
 import 'package:stream_chat/src/core/models/user.dart';

 part 'own_user.g.dart';
@@ -1,5 +1,5 @@
 import 'package:json_annotation/json_annotation.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';
 import 'package:stream_chat/src/core/models/user.dart';

 part 'reaction.g.dart';
@@ -1,5 +1,5 @@
 import 'package:json_annotation/json_annotation.dart';
-import 'package:stream_chat/src/core/models/serialization.dart';
+import 'package:stream_chat/src/core/util/serialization.dart';

 part 'user.g.dart';

@@ -92,6 +92,10 @@ class User {
    return id;
  }

+  /// List of users to list of userIds
+  static List<String>? toIds(List<User>? users) =>
+      users?.map((u) => u.id).toList();
+
  @override
  bool operator ==(Object other) =>
      identical(this, other) ||
@@ -1,4 +1,4 @@
-import 'package:stream_chat/src/platform_detector/platform_detector_stub.dart'
+import 'package:stream_chat/src/core/platform_detector/platform_detector_stub.dart'
    if (dart.library.html) 'platform_detector_web.dart'
    if (dart.library.io) 'platform_detector_io.dart';

@@ -1,5 +1,5 @@
 import 'dart:io';
-import 'package:stream_chat/src/platform_detector/platform_detector.dart';
+import 'package:stream_chat/src/core/platform_detector/platform_detector.dart';

 /// Version running on native systems
 PlatformType get currentPlatform {
@@ -1,4 +1,4 @@
-import 'package:stream_chat/src/platform_detector/platform_detector.dart';
+import 'package:stream_chat/src/core/platform_detector/platform_detector.dart';

 /// Stub implementation
 PlatformType get currentPlatform {
@@ -1,4 +1,4 @@
-import 'package:stream_chat/src/platform_detector/platform_detector.dart';
+import 'package:stream_chat/src/core/platform_detector/platform_detector.dart';

 /// Version running on web
 PlatformType get currentPlatform => PlatformType.web;
@@ -0,0 +1,30 @@
+import 'package:http_parser/http_parser.dart';
+import 'package:mime/mime.dart';
+
+/// Useful extension functions for [Iterable]
+extension IterableX<T> on Iterable<T?> {
+  /// Removes all the null values
+  /// and converts `Iterable<T?>` into `Iterable<T>`
+  Iterable<T> get withNullifyer => whereType();
+}
+
+/// Useful extension functions for [Map]
+extension MapX<K, V> on Map<K, V> {
+  /// Returns a new map with null keys or values removed
+  Map<K, V> get nullProtected =>
+      Map.from(this)..removeWhere((key, value) => key == null || value == null);
+}
+
+/// Useful extension functions for [String]
+extension StringX on String {
+  /// returns the mime type from the passed file name.
+  MediaType? get mimeType {
+    if (toLowerCase().endsWith('heic')) {
+      return MediaType.parse('image/heic');
+    } else {
+      final mimeType = lookupMimeType(this);
+      if (mimeType == null) return null;
+      return MediaType.parse(mimeType);
+    }
+  }
+}
@@ -1,5 +1,3 @@
-import 'package:stream_chat/src/core/models/user.dart';
-
 /// Used to avoid to serialize properties to json
 // ignore: prefer_void_to_null
 Null readonly(_) => null;
@@ -9,10 +7,6 @@ class Serialization {
  /// Used to avoid to serialize properties to json
  static const Function readOnly = readonly;

-  /// List of users to list of userIds
-  static List<String>? userIds(List<User>? users) =>
-      users?.map((u) => u.id).toList();
-
  /// Takes unknown json keys and puts them in the `extra_data` key
  static Map<String, dynamic> moveToExtraDataFromRoot(
    Map<String, dynamic> json,
@@ -4,14 +4,14 @@ import 'dart:math' as math;
 // This alphabet uses `A-Za-z0-9_-` symbols. The genetic algorithm helped
 // optimize the gzip compression for this alphabet.
 const _alphabet =
-    'ModuleSymbhasOwnPr0123456789ABCDEFGHNRVfgctiUvzKqYTJkLxpZXIjQW';
+    'ModuleSymbhasOwnPr-0123456789ABCDEFGHNRVfgctiUvz_KqYTJkLxpZXIjQW';

 /// Generates a random String id
 /// Adopted from: https://github.com/ai/nanoid/blob/main/non-secure/index.js
 String randomId({int size = 21}) {
  var id = '';
  for (var i = 0; i < size; i++) {
-    id += _alphabet[(math.Random().nextInt(32) * 64) | 0];
+    id += _alphabet[(math.Random().nextDouble() * 64).floor() | 0];
  }
  return id;
 }
@@ -8,7 +8,7 @@ import 'package:stream_chat/src/core/models/message.dart';
 import 'package:stream_chat/src/core/models/reaction.dart';
 import 'package:stream_chat/src/core/models/read.dart';
 import 'package:stream_chat/src/core/models/user.dart';
-import 'package:stream_chat/src/extensions/iterable_extension.dart';
+import 'package:stream_chat/src/core/util/extension.dart';

 /// A simple client used for persisting chat data locally.
 abstract class ChatPersistenceClient {
@@ -1,9 +0,0 @@
-/// Useful extension functions for [Iterable]
-extension IterableX<T> on Iterable<T?> {
-  /// Removes all the null values
-  /// and converts `Iterable<T?>` into `Iterable<T>`
-  Iterable<T> get withNullifyer => [
-        for (final item in this)
-          if (item != null) item
-      ];
-}
@@ -1,6 +0,0 @@
-/// Useful extension functions for [Map]
-extension MapX<K, V> on Map<K, V> {
-  /// Returns a new map with null keys or values removed
-  Map<K, V> get nullProtected =>
-      Map.from(this)..removeWhere((key, value) => key == null || value == null);
-}
@@ -1,335 +0,0 @@
-// ignore_for_file: lines_longer_than_80_chars
-
-import 'dart:async' show Timer;
-import 'dart:math' as math;
-
-/// Useful rate limiter extensions for [Function] class.
-extension RateLimit on Function {
-  /// Converts this into a [Debounce] function.
-  Debounce debounced(
-    Duration wait, {
-    bool leading = false,
-    bool trailing = true,
-    Duration? maxWait,
-  }) =>
-      Debounce(
-        this,
-        wait,
-        leading: leading,
-        trailing: trailing,
-        maxWait: maxWait,
-      );
-
-  /// Converts this into a [Throttle] function.
-  Throttle throttled(
-    Duration wait, {
-    bool leading = true,
-    bool trailing = true,
-  }) =>
-      Throttle(
-        this,
-        wait,
-        leading: leading,
-        trailing: trailing,
-      );
-}
-
-/// TopLevel lambda to create [Debounce] functions.
-Debounce debounce(
-  Function func,
-  Duration wait, {
-  bool leading = false,
-  bool trailing = true,
-  Duration? maxWait,
-}) =>
-    Debounce(
-      func,
-      wait,
-      leading: leading,
-      trailing: trailing,
-      maxWait: maxWait,
-    );
-
-/// TopLevel lambda to create [Throttle] functions.
-Throttle throttle(
-  Function func,
-  Duration wait, {
-  bool leading = true,
-  bool trailing = true,
-}) =>
-    Throttle(
-      func,
-      wait,
-      leading: leading,
-      trailing: trailing,
-    );
-
-/// Creates a debounced function that delays invoking `func` until after `wait`
-/// milliseconds have elapsed since the last time the debounced function was
-/// invoked. The debounced function comes with a [Debounce.cancel] method to cancel
-/// delayed `func` invocations and a [Debounce.flush] method to immediately invoke them.
-/// Provide `leading` and/or `trailing` to indicate whether `func` should be
-/// invoked on the `leading` and/or `trailing` edge of the `wait` interval.
-/// The `func` is invoked with the last arguments provided to the [call]
-/// function. Subsequent calls to the debounced function return the result of
-/// the last `func` invocation.
-///
-/// **Note:** If `leading` and `trailing` options are `true`, `func` is
-/// invoked on the trailing edge of the timeout only if the debounced function
-/// is invoked more than once during the `wait` timeout.
-///
-/// If `wait` is [Duration.zero] and `leading` is `false`,
-/// `func` invocation is deferred until the next tick.
-///
-/// See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
-/// for details over the differences between [Debounce] and [Throttle].
-///
-/// Some examples:
-///
-/// Avoid calling costly network calls when user is typing something.
-/// ```dart
-///   void fetchData(String query) async {
-///     final data = api.getData(query);
-///     doSomethingWithTheData(data);
-///   }
-///
-///   final debouncedFetchData = Debounce(
-///     fetchData,
-///     const Duration(milliseconds: 350),
-///   );
-///
-///   void onSearchQueryChanged(query) {
-///      debouncedFetchData(query);
-///   }
-/// ```
-///
-/// Cancel the trailing debounced invocation.
-/// ```dart
-///   void dispose() {
-///     debounced.cancel();
-///   }
-/// ```
-///
-/// Check for pending invocations.
-/// ```dart
-///   final status = debounced.isPending ? "Pending..." : "Ready";
-/// ```
-class Debounce {
-  /// Creates a new instance of [Debounce].
-  Debounce(
-    this._func,
-    Duration wait, {
-    bool leading = false,
-    bool trailing = true,
-    Duration? maxWait,
-  })  : _leading = leading,
-        _trailing = trailing,
-        _wait = wait.inMilliseconds,
-        _maxing = maxWait != null {
-    if (_maxing) {
-      _maxWait = math.max(maxWait!.inMilliseconds, _wait);
-    }
-  }
-
-  final Function _func;
-  final bool _leading;
-  final bool _trailing;
-  final int _wait;
-  final bool _maxing;
-
-  late int _maxWait;
-  List<Object?>? _lastArgs;
-  Map<Symbol, Object>? _lastNamedArgs;
-  Timer? _timer;
-  int? _lastCallTime;
-  Object? _result;
-  int? _lastInvokeTime = 0;
-
-  Object? _invokeFunc(int? time) {
-    final args = _lastArgs;
-    final namedArgs = _lastNamedArgs;
-    _lastArgs = _lastNamedArgs = null;
-    _lastInvokeTime = time;
-    return _result = Function.apply(_func, args, namedArgs);
-  }
-
-  Timer _startTimer(Function pendingFunc, int wait) =>
-      Timer(Duration(milliseconds: wait), pendingFunc as void Function());
-
-  bool _shouldInvoke(int time) {
-    final timeSinceLastCall = time - (_lastCallTime ?? double.nan);
-    final timeSinceLastInvoke = time - _lastInvokeTime!;
-
-    // Either this is the first call, activity has stopped and we're at the
-    // trailing edge, the system time has gone backwards and we're treating
-    // it as the trailing edge, or we've hit the `maxWait` limit.
-    return _lastCallTime == null ||
-        (timeSinceLastCall >= _wait) ||
-        (timeSinceLastCall < 0) ||
-        (_maxing && timeSinceLastInvoke >= _maxWait);
-  }
-
-  Object? _trailingEdge(int time) {
-    _timer = null;
-
-    // Only invoke if we have `lastArgs` which means `func` has been
-    // debounced at least once.
-    if (_trailing && _lastArgs != null) {
-      return _invokeFunc(time);
-    }
-    _lastArgs = _lastNamedArgs = null;
-    return _result;
-  }
-
-  int _remainingWait(int time) {
-    final timeSinceLastCall = time - _lastCallTime!;
-    final timeSinceLastInvoke = time - _lastInvokeTime!;
-    final timeWaiting = _wait - timeSinceLastCall;
-
-    return _maxing
-        ? math.min(timeWaiting, _maxWait - timeSinceLastInvoke)
-        : timeWaiting;
-  }
-
-  void _timerExpired() {
-    final time = DateTime.now().millisecondsSinceEpoch;
-    if (_shouldInvoke(time)) {
-      _trailingEdge(time);
-    } else {
-      // Restart the timer.
-      _timer = _startTimer(_timerExpired, _remainingWait(time));
-    }
-  }
-
-  Object? _leadingEdge(int? time) {
-    // Reset any `maxWait` timer.
-    _lastInvokeTime = time;
-    // Start the timer for the trailing edge.
-    _timer = _startTimer(_timerExpired, _wait);
-    // Invoke the leading edge.
-    return _leading ? _invokeFunc(time) : _result;
-  }
-
-  /// Cancels all the remaining delayed functions.
-  void cancel() {
-    _timer?.cancel();
-    _lastInvokeTime = 0;
-    _lastArgs = _lastNamedArgs = _lastCallTime = _timer = null;
-  }
-
-  /// Immediately invokes all the remaining delayed functions.
-  Object? flush() {
-    final now = DateTime.now().millisecondsSinceEpoch;
-    return _timer == null ? _result : _trailingEdge(now);
-  }
-
-  /// True if there are functions remaining to get invoked.
-  bool get isPending => _timer != null;
-
-  /// Calls/invokes this class like a function.
-  /// Pass [args] and [namedArgs] to be used while invoking [_func].
-  Object? call(
-    List<dynamic> args, {
-    Map<Symbol, dynamic>? namedArgs,
-  }) {
-    final time = DateTime.now().millisecondsSinceEpoch;
-    final isInvoking = _shouldInvoke(time);
-
-    _lastArgs = args;
-    _lastNamedArgs = namedArgs as Map<Symbol, Object>?;
-    _lastCallTime = time;
-
-    if (isInvoking) {
-      if (_timer == null) {
-        return _leadingEdge(_lastCallTime);
-      }
-      if (_maxing) {
-        // Handle invocations in a tight loop.
-        _timer = _startTimer(_timerExpired, _wait);
-        return _invokeFunc(_lastCallTime);
-      }
-    }
-    _timer ??= _startTimer(_timerExpired, _wait);
-    return _result;
-  }
-}
-
-/// Creates a throttled function that only invokes `func` at most once per
-/// every `wait` milliseconds. The throttled function comes with a [Throttle.cancel]
-/// method to cancel delayed `func` invocations and a [Throttle.flush] method to
-/// immediately invoke them. Provide `leading` and/or `trailing` to indicate
-/// whether `func` should be invoked on the `leading` and/or `trailing` edge of the `wait` timeout.
-/// The `func` is invoked with the last arguments provided to the
-/// throttled function. Subsequent calls to the throttled function return the
-/// result of the last `func` invocation.
-///
-/// **Note:** If `leading` and `trailing` options are `true`, `func` is
-/// invoked on the trailing edge of the timeout only if the throttled function
-/// is invoked more than once during the `wait` timeout.
-///
-/// If `wait` is [Duration.zero] and `leading` is `false`, `func` invocation is deferred
-/// until the next tick.
-///
-/// See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
-/// for details over the differences between [Throttle] and [Debounce].
-///
-/// Some examples:
-///
-/// Avoid excessively rebuilding UI progress while uploading data to server.
-/// ```dart
-///   void updateUI(Data data) {
-///     updateProgress(data);
-///   }
-///
-///   final throttledUpdateUI = Throttle(
-///     updateUI,
-///     const Duration(milliseconds: 350),
-///   );
-///
-///   void onUploadProgressChanged(progress) {
-///      throttledUpdateUI(progress);
-///   }
-/// ```
-///
-/// Cancel the trailing throttled invocation.
-/// ```dart
-///   void dispose() {
-///     throttled.cancel();
-///   }
-/// ```
-///
-/// Check for pending invocations.
-/// ```dart
-///   final status = throttled.isPending ? "Pending..." : "Ready";
-/// ```
-class Throttle {
-  /// Creates a new instance of [Throttle]
-  Throttle(
-    Function func,
-    Duration wait, {
-    bool leading = true,
-    bool trailing = true,
-  }) : _debounce = Debounce(
-          func,
-          wait,
-          leading: leading,
-          trailing: trailing,
-          maxWait: wait,
-        );
-
-  final Debounce _debounce;
-
-  /// Cancels all the remaining delayed functions.
-  void cancel() => _debounce.cancel();
-
-  /// Immediately invokes all the remaining delayed functions.
-  Object? flush() => _debounce.flush();
-
-  /// True if there are functions remaining to get invoked.
-  bool get isPending => _debounce.isPending;
-
-  /// Calls/invokes this class like a function.
-  /// Pass [args] and [namedArgs] to be used while invoking `func`.
-  Object? call(List<dynamic> args, {Map<Symbol, dynamic>? namedArgs}) =>
-      _debounce.call(args, namedArgs: namedArgs);
-}
@@ -1,18 +0,0 @@
-import 'package:http_parser/http_parser.dart' as http_parser;
-import 'package:mime/mime.dart';
-
-/// Useful extension functions for [String]
-extension StringX on String {
-  /// Returns the mime type from the passed file name.
-  http_parser.MediaType? get mimeType {
-    if (toLowerCase().endsWith('heic')) {
-      return http_parser.MediaType.parse('image/heic');
-    } else {
-      final mimeType = lookupMimeType(this);
-      if (mimeType == null) {
-        return null;
-      }
-      return http_parser.MediaType.parse(mimeType);
-    }
-  }
-}
@@ -5,8 +5,7 @@ import 'dart:math' as math;
 import 'package:logging/logging.dart';
 import 'package:meta/meta.dart';
 import 'package:rxdart/rxdart.dart';
-import 'package:stream_chat/src/errors/chat_error_code.dart';
-import 'package:stream_chat/src/errors/stream_chat_error.dart';
+import 'package:stream_chat/src/core/error/error.dart';
 import 'package:stream_chat/src/ws/connection_status.dart';
 import 'package:stream_chat/src/core/http/token.dart';
 import 'package:stream_chat/src/core/http/token_manager.dart';
@@ -6,14 +6,14 @@ export 'package:dio/src/multipart_file.dart';
 export 'package:dio/src/options.dart';
 export 'package:dio/src/options.dart' show ProgressCallback;
 export 'package:logging/logging.dart' show Logger, Level;
+export 'package:rate_limiter/rate_limiter.dart';

-export './src/api/channel.dart';
-export './src/client.dart';
 export './src/core/api/attachment_file_uploader.dart'
    show AttachmentFileUploader;
 export './src/core/api/requests.dart';
 export './src/core/api/requests.dart';
 export './src/core/api/responses.dart';
+export './src/core/error/error.dart';
 export './src/core/models/action.dart';
 export './src/core/models/attachment.dart';
 export './src/core/models/attachment_file.dart';
@@ -31,11 +31,10 @@ export './src/core/models/own_user.dart';
 export './src/core/models/reaction.dart';
 export './src/core/models/read.dart';
 export './src/core/models/user.dart';
+export './src/core/util/extension.dart';
 export './src/db/chat_persistence_client.dart';
-export './src/errors/chat_error_code.dart';
-export './src/errors/stream_chat_error.dart';
 export './src/event_type.dart';
-export './src/extensions/rate_limit.dart';
-export './src/extensions/string_extension.dart';
 export './src/location.dart';
 export './src/ws/connection_status.dart';
+export 'src/client/channel.dart';
+export 'src/client/client.dart';
@@ -1,4 +1,4 @@
-import 'package:stream_chat/src/client.dart';
+import 'package:stream_chat/src/client/client.dart';

 /// Current package version
 /// Used in [StreamChatClient] to build the `x-stream-client` header
@@ -20,6 +20,7 @@ dependencies:
  logging: ^1.0.1
  meta: ^1.3.0
  mime: ^1.0.0
+  rate_limiter: ^0.1.1
  rxdart: ^0.27.0
  uuid: ^3.0.4
  web_socket_channel: ^2.0.0
@@ -4,6 +4,23 @@ import 'dart:io';
 import 'package:stream_chat/stream_chat.dart';
 import 'package:stream_chat/version.dart';
 import 'package:test/test.dart';
+import 'dart:math' as math;
+
+// This alphabet uses `A-Za-z0-9_-` symbols. The genetic algorithm helped
+// optimize the gzip compression for this alphabet.
+const _alphabet =
+    'ModuleSymbhasOwnPr-0123456789ABCDEFGHNRVfgctiUvz_KqYTJkLxpZXIjQW';
+
+/// Generates a random String id
+/// Adopted from: https://github.com/ai/nanoid/blob/main/non-secure/index.js
+String randomId({int size = 21}) {
+  var id = '';
+  for (var i = 0; i < size; i++) {
+    id += _alphabet[(math.Random().nextDouble() * 64).floor() | 0];
+  }
+  return id;
+}
+

 void prepareTest() {
  // https://github.com/flutter/flutter/issues/20907
@@ -15,30 +32,32 @@ void prepareTest() {
 void main() {
  prepareTest();
  test('stream chat version matches pubspec', () async {
-    /// Create a new instance of [StreamChatClient]
-    /// by passing the apikey obtained from your project dashboard.
-    final client = StreamChatClient('b67pax5b2wdq', logLevel: Level.INFO);
+    print(randomId());

-    /// Set the current user. In a production scenario, this should be done using
-    /// a backend to generate a user token using our server SDK.
-    /// Please see the following for more information:
-    /// https://getstream.io/chat/docs/ios_user_setup_and_tokens/
-    await client.connectUser(
-      User(
-        id: 'cool-shadow-7',
-        extraData: {
-          'image':
-              'https://getstream.io/random_png/?id=cool-shadow-7&amp;name=Cool+shadow',
-        },
-      ),
-      '''eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiY29vbC1zaGFkb3ctNyJ9.gkOlCRb1qgy4joHPaxFwPOdXcGvSPvp6QY0S4mpRkVo''',
-    );
-
-    try {
-      await client.banUser('asdasdas');
-    } catch (e) {
-      print(e);
-    }
+    // /// Create a new instance of [StreamChatClient]
+    // /// by passing the apikey obtained from your project dashboard.
+    // final client = StreamChatClient('b67pax5b2wdq', logLevel: Level.INFO);
+    //
+    // /// Set the current user. In a production scenario, this should be done using
+    // /// a backend to generate a user token using our server SDK.
+    // /// Please see the following for more information:
+    // /// https://getstream.io/chat/docs/ios_user_setup_and_tokens/
+    // await client.connectUser(
+    //   User(
+    //     id: 'cool-shadow-7',
+    //     extraData: {
+    //       'image':
+    //           'https://getstream.io/random_png/?id=cool-shadow-7&amp;name=Cool+shadow',
+    //     },
+    //   ),
+    //   '''eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJ1c2VyX2lkIjoiY29vbC1zaGFkb3ctNyJ9.gkOlCRb1qgy4joHPaxFwPOdXcGvSPvp6QY0S4mpRkVo''',
+    // );
+    //
+    // try {
+    //   await client.banUser('asdasdas');
+    // } catch (e) {
+    //   print(e);
+    // }

    // final pubspecPath = '${Directory.current.path}/pubspec.yaml';
    // final pubspec = File(pubspecPath).readAsStringSync();