TF-2677 Create server settings capability & model

server_settings/lib/server_settings/capability_server_settings.dart

@@ -0,0 +1,3 @@
+import 'package:jmap_dart_client/jmap/core/capability/capability_identifier.dart';
+
+final capabilityServerSettings = CapabilityIdentifier(Uri.parse('com:linagora:params:jmap:settings'));

server_settings/lib/server_settings/converter/always_read_receipt_nullable_converter.dart

@@ -0,0 +1,19 @@
+import 'package:json_annotation/json_annotation.dart';
+
+class AlwaysReadReceiptNullableConverter implements JsonConverter<bool?, String?> {
+  const AlwaysReadReceiptNullableConverter();
+
+  @override
+  bool? fromJson(String? json) {
+    if (json == null) {
+      return null;
+    } else if (json == 'true') {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  @override
+  String? toJson(bool? object) => object?.toString();
+}

server_settings/lib/server_settings/converter/server_settings_id_nullable_converter.dart

@@ -0,0 +1,13 @@
+import 'package:jmap_dart_client/jmap/core/id.dart';
+import 'package:json_annotation/json_annotation.dart';
+import 'package:server_settings/server_settings/server_settings_id.dart';
+
+class ServerSettingsIdNullableConverter implements JsonConverter<ServerSettingsId?, String?> {
+  const ServerSettingsIdNullableConverter();
+
+  @override
+  ServerSettingsId? fromJson(String? json) => json != null ? ServerSettingsId(id: Id(json)) : null;
+
+  @override
+  String? toJson(ServerSettingsId? object) => object?.id.value;
+}

server_settings/lib/server_settings/server_settings_id.dart

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+import 'package:equatable/equatable.dart';
+import 'package:jmap_dart_client/jmap/core/id.dart';
+
+enum ServerSettingsIdType {
+  singleton('singleton');
+
+  const ServerSettingsIdType(this.value);
+
+  final String value;
+}
+
+class ServerSettingsId with EquatableMixin {
+  final Id id;
+
+  ServerSettingsId({required this.id});
+
+  @override
+  List<Object?> get props => [id];
+}
+
+extension ServerSettingsIdExtension on ServerSettingsId {
+  static ServerSettingsId get serverSettingsIdSingleton => ServerSettingsId(id: Id(ServerSettingsIdType.singleton.value));
+}

server_settings/lib/server_settings/tmail_server_settings.dart

@@ -0,0 +1,50 @@
+import 'package:equatable/equatable.dart';
+import 'package:json_annotation/json_annotation.dart';
+import 'package:server_settings/server_settings/converter/always_read_receipt_nullable_converter.dart';
+import 'package:server_settings/server_settings/converter/server_settings_id_nullable_converter.dart';
+import 'package:server_settings/server_settings/server_settings.dart';
+import 'package:server_settings/server_settings/server_settings_id.dart';
+
+part 'tmail_server_settings.g.dart';
+
+@JsonSerializable(
+  explicitToJson: true, 
+  includeIfNull: false, 
+  converters: [ServerSettingsIdNullableConverter()])
+class TMailServerSettings extends ServerSettings {
+  final ServerSettingsId? id;
+  final TMailServerSettingOptions? settings;
+  TMailServerSettings({this.id, this.settings});
+
+  factory TMailServerSettings.fromJson(Map<String, dynamic> json) =>
+    _$TMailServerSettingsFromJson(json);
+
+  Map<String, dynamic> toJson() => _$TMailServerSettingsToJson(this);
+
+  @override
+  List<Object?> get props => [id, settings];
+}
+
+@JsonSerializable(
+  explicitToJson: true, 
+  includeIfNull: false,
+  converters: [AlwaysReadReceiptNullableConverter()])
+class TMailServerSettingOptions with EquatableMixin {
+  @JsonKey(name: 'read.receipts.always')
+  final bool? alwaysReadReceipts;
+  TMailServerSettingOptions({this.alwaysReadReceipts});
+
+  factory TMailServerSettingOptions.fromJson(Map<String, dynamic> json) =>
+    _$TMailServerSettingOptionsFromJson(json);
+
+  Map<String, dynamic> toJson() => _$TMailServerSettingOptionsToJson(this);
+
+  TMailServerSettingOptions copyWith({bool? alwaysReadReceipts}) {
+    return TMailServerSettingOptions(
+      alwaysReadReceipts: alwaysReadReceipts ?? this.alwaysReadReceipts,
+    );
+  }
+
+  @override
+  List<Object?> get props => [alwaysReadReceipts];
+}