feat: fixed for the issue (#28)

lib/mastodon_api.dart

@@ -23,6 +23,7 @@ export 'package:mastodon_api/src/service/entities/announcement_status.dart';
 export 'package:mastodon_api/src/service/entities/application.dart';
 export 'package:mastodon_api/src/service/entities/block_severity.dart';
 export 'package:mastodon_api/src/service/entities/blocked_domain.dart';
+export 'package:mastodon_api/src/service/entities/conversation.dart';
 export 'package:mastodon_api/src/service/entities/display_media_setting.dart';
 export 'package:mastodon_api/src/service/entities/emoji.dart';
 export 'package:mastodon_api/src/service/entities/emoji_reaction.dart';

lib/src/service/entities/conversation.dart

@@ -0,0 +1,35 @@
+// Copyright 2022 Kato Shinya. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided the conditions.
+
+// ignore_for_file: invalid_annotation_target
+
+// 📦 Package imports:
+import 'package:freezed_annotation/freezed_annotation.dart';
+
+import 'account.dart';
+import 'status.dart';
+
+part 'conversation.freezed.dart';
+part 'conversation.g.dart';
+
+@freezed
+class Conversation with _$Conversation {
+  @JsonSerializable(includeIfNull: false)
+  const factory Conversation({
+    /// The ID of the conversation in the database.
+    required String id,
+
+    /// Is the conversation currently marked as unread?
+    @JsonKey(name: 'unread') required bool isUnread,
+
+    /// Participants in the conversation.
+    required List<Account> accounts,
+
+    /// The last status in the conversation.
+    Status? lastStatus,
+  }) = _Conversation;
+
+  factory Conversation.fromJson(Map<String, Object?> json) =>
+      _$ConversationFromJson(json);
+}

lib/src/service/entities/conversation.freezed.dart

@@ -0,0 +1,268 @@
+// coverage:ignore-file
+// GENERATED CODE - DO NOT MODIFY BY HAND
+// ignore_for_file: type=lint
+// ignore_for_file: unused_element, deprecated_member_use, deprecated_member_use_from_same_package, use_function_type_syntax_for_parameters, unnecessary_const, avoid_init_to_null, invalid_override_different_default_values_named, prefer_expression_function_bodies, annotate_overrides, invalid_annotation_target
+
+part of 'conversation.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#custom-getters-and-methods');
+
+Conversation _$ConversationFromJson(Map<String, dynamic> json) {
+  return _Conversation.fromJson(json);
+}
+
+/// @nodoc
+mixin _$Conversation {
+  /// The ID of the conversation in the database.
+  String get id => throw _privateConstructorUsedError;
+
+  /// Is the conversation currently marked as unread?
+  @JsonKey(name: 'unread')
+  bool get isUnread => throw _privateConstructorUsedError;
+
+  /// Participants in the conversation.
+  List<Account> get accounts => throw _privateConstructorUsedError;
+
+  /// The last status in the conversation.
+  Status? get lastStatus => throw _privateConstructorUsedError;
+
+  Map<String, dynamic> toJson() => throw _privateConstructorUsedError;
+  @JsonKey(ignore: true)
+  $ConversationCopyWith<Conversation> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $ConversationCopyWith<$Res> {
+  factory $ConversationCopyWith(
+          Conversation value, $Res Function(Conversation) then) =
+      _$ConversationCopyWithImpl<$Res, Conversation>;
+  @useResult
+  $Res call(
+      {String id,
+      @JsonKey(name: 'unread') bool isUnread,
+      List<Account> accounts,
+      Status? lastStatus});
+
+  $StatusCopyWith<$Res>? get lastStatus;
+}
+
+/// @nodoc
+class _$ConversationCopyWithImpl<$Res, $Val extends Conversation>
+    implements $ConversationCopyWith<$Res> {
+  _$ConversationCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? isUnread = null,
+    Object? accounts = null,
+    Object? lastStatus = freezed,
+  }) {
+    return _then(_value.copyWith(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      isUnread: null == isUnread
+          ? _value.isUnread
+          : isUnread // ignore: cast_nullable_to_non_nullable
+              as bool,
+      accounts: null == accounts
+          ? _value.accounts
+          : accounts // ignore: cast_nullable_to_non_nullable
+              as List<Account>,
+      lastStatus: freezed == lastStatus
+          ? _value.lastStatus
+          : lastStatus // ignore: cast_nullable_to_non_nullable
+              as Status?,
+    ) as $Val);
+  }
+
+  @override
+  @pragma('vm:prefer-inline')
+  $StatusCopyWith<$Res>? get lastStatus {
+    if (_value.lastStatus == null) {
+      return null;
+    }
+
+    return $StatusCopyWith<$Res>(_value.lastStatus!, (value) {
+      return _then(_value.copyWith(lastStatus: value) as $Val);
+    });
+  }
+}
+
+/// @nodoc
+abstract class _$$_ConversationCopyWith<$Res>
+    implements $ConversationCopyWith<$Res> {
+  factory _$$_ConversationCopyWith(
+          _$_Conversation value, $Res Function(_$_Conversation) then) =
+      __$$_ConversationCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call(
+      {String id,
+      @JsonKey(name: 'unread') bool isUnread,
+      List<Account> accounts,
+      Status? lastStatus});
+
+  @override
+  $StatusCopyWith<$Res>? get lastStatus;
+}
+
+/// @nodoc
+class __$$_ConversationCopyWithImpl<$Res>
+    extends _$ConversationCopyWithImpl<$Res, _$_Conversation>
+    implements _$$_ConversationCopyWith<$Res> {
+  __$$_ConversationCopyWithImpl(
+      _$_Conversation _value, $Res Function(_$_Conversation) _then)
+      : super(_value, _then);
+
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? id = null,
+    Object? isUnread = null,
+    Object? accounts = null,
+    Object? lastStatus = freezed,
+  }) {
+    return _then(_$_Conversation(
+      id: null == id
+          ? _value.id
+          : id // ignore: cast_nullable_to_non_nullable
+              as String,
+      isUnread: null == isUnread
+          ? _value.isUnread
+          : isUnread // ignore: cast_nullable_to_non_nullable
+              as bool,
+      accounts: null == accounts
+          ? _value._accounts
+          : accounts // ignore: cast_nullable_to_non_nullable
+              as List<Account>,
+      lastStatus: freezed == lastStatus
+          ? _value.lastStatus
+          : lastStatus // ignore: cast_nullable_to_non_nullable
+              as Status?,
+    ));
+  }
+}
+
+/// @nodoc
+
+@JsonSerializable(includeIfNull: false)
+class _$_Conversation implements _Conversation {
+  const _$_Conversation(
+      {required this.id,
+      @JsonKey(name: 'unread') required this.isUnread,
+      required final List<Account> accounts,
+      this.lastStatus})
+      : _accounts = accounts;
+
+  factory _$_Conversation.fromJson(Map<String, dynamic> json) =>
+      _$$_ConversationFromJson(json);
+
+  /// The ID of the conversation in the database.
+  @override
+  final String id;
+
+  /// Is the conversation currently marked as unread?
+  @override
+  @JsonKey(name: 'unread')
+  final bool isUnread;
+
+  /// Participants in the conversation.
+  final List<Account> _accounts;
+
+  /// Participants in the conversation.
+  @override
+  List<Account> get accounts {
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableListView(_accounts);
+  }
+
+  /// The last status in the conversation.
+  @override
+  final Status? lastStatus;
+
+  @override
+  String toString() {
+    return 'Conversation(id: $id, isUnread: $isUnread, accounts: $accounts, lastStatus: $lastStatus)';
+  }
+
+  @override
+  bool operator ==(dynamic other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$_Conversation &&
+            (identical(other.id, id) || other.id == id) &&
+            (identical(other.isUnread, isUnread) ||
+                other.isUnread == isUnread) &&
+            const DeepCollectionEquality().equals(other._accounts, _accounts) &&
+            (identical(other.lastStatus, lastStatus) ||
+                other.lastStatus == lastStatus));
+  }
+
+  @JsonKey(ignore: true)
+  @override
+  int get hashCode => Object.hash(runtimeType, id, isUnread,
+      const DeepCollectionEquality().hash(_accounts), lastStatus);
+
+  @JsonKey(ignore: true)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$_ConversationCopyWith<_$_Conversation> get copyWith =>
+      __$$_ConversationCopyWithImpl<_$_Conversation>(this, _$identity);
+
+  @override
+  Map<String, dynamic> toJson() {
+    return _$$_ConversationToJson(
+      this,
+    );
+  }
+}
+
+abstract class _Conversation implements Conversation {
+  const factory _Conversation(
+      {required final String id,
+      @JsonKey(name: 'unread') required final bool isUnread,
+      required final List<Account> accounts,
+      final Status? lastStatus}) = _$_Conversation;
+
+  factory _Conversation.fromJson(Map<String, dynamic> json) =
+      _$_Conversation.fromJson;
+
+  @override
+
+  /// The ID of the conversation in the database.
+  String get id;
+  @override
+
+  /// Is the conversation currently marked as unread?
+  @JsonKey(name: 'unread')
+  bool get isUnread;
+  @override
+
+  /// Participants in the conversation.
+  List<Account> get accounts;
+  @override
+
+  /// The last status in the conversation.
+  Status? get lastStatus;
+  @override
+  @JsonKey(ignore: true)
+  _$$_ConversationCopyWith<_$_Conversation> get copyWith =>
+      throw _privateConstructorUsedError;
+}