feature: Added update notification and download links per platform (#362)

Co-authored-by: PartyDonut <PartyDonut@users.noreply.github.com>

lib/providers/update_provider.dart

@@ -0,0 +1,77 @@
+import 'dart:async';
+
+import 'package:flutter/foundation.dart';
+
+import 'package:collection/collection.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import 'package:fladder/providers/settings/client_settings_provider.dart';
+import 'package:fladder/util/update_checker.dart';
+
+part 'update_provider.freezed.dart';
+part 'update_provider.g.dart';
+
+Set<TargetPlatform> get _directUpdatePlatforms => {
+      TargetPlatform.linux,
+      TargetPlatform.macOS,
+      TargetPlatform.windows,
+    };
+
+final hasNewUpdateProvider = Provider<bool>((ref) {
+  //Disable update notification for platforms that are updated outside of Github.
+  if (!_directUpdatePlatforms.contains(defaultTargetPlatform) || kIsWeb) {
+    return false;
+  }
+  return ref.watch(clientSettingsProvider.select((value) => value.lastViewedUpdate)) !=
+      ref.watch(updateProvider.select((value) => value.latestRelease?.version));
+});
+
+@Riverpod(keepAlive: true)
+class Update extends _$Update {
+  final updateChecker = UpdateChecker();
+
+  Timer? _timer;
+
+  @override
+  UpdatesModel build() {
+    final checkForUpdates = ref.watch(clientSettingsProvider.select((value) => value.checkForUpdates));
+
+    if (!checkForUpdates) {
+      _timer?.cancel();
+      return UpdatesModel();
+    }
+    ref.onDispose(() {
+      _timer?.cancel();
+    });
+
+    _timer?.cancel();
+
+    _timer = Timer.periodic(const Duration(minutes: 30), (timer) {
+      _fetchLatest();
+    });
+
+    _fetchLatest();
+
+    return UpdatesModel();
+  }
+
+  Future<List<ReleaseInfo>> _fetchLatest() async {
+    final latest = await updateChecker.fetchRecentReleases();
+    state = state.copyWith(
+      lastRelease: latest,
+    );
+    return latest;
+  }
+}
+
+@Freezed(toJson: false, fromJson: false)
+class UpdatesModel with _$UpdatesModel {
+  const UpdatesModel._();
+
+  factory UpdatesModel({
+    @Default([]) List<ReleaseInfo> lastRelease,
+  }) = _UpdatesModel;
+
+  ReleaseInfo? get latestRelease => lastRelease.firstWhereOrNull((value) => value.isNewerThanCurrent);
+}

lib/providers/update_provider.freezed.dart

@@ -0,0 +1,163 @@
+// 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, unnecessary_question_mark
+
+part of 'update_provider.dart';
+
+// **************************************************************************
+// FreezedGenerator
+// **************************************************************************
+
+T _$identity<T>(T value) => value;
+
+final _privateConstructorUsedError = UnsupportedError(
+    'It seems like you constructed your class using `MyClass._()`. This constructor is only meant to be used by freezed and you are not supposed to need it nor use it.\nPlease check the documentation here for more information: https://github.com/rrousselGit/freezed#adding-getters-and-methods-to-our-models');
+
+/// @nodoc
+mixin _$UpdatesModel {
+  List<ReleaseInfo> get lastRelease => throw _privateConstructorUsedError;
+
+  /// Create a copy of UpdatesModel
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  $UpdatesModelCopyWith<UpdatesModel> get copyWith =>
+      throw _privateConstructorUsedError;
+}
+
+/// @nodoc
+abstract class $UpdatesModelCopyWith<$Res> {
+  factory $UpdatesModelCopyWith(
+          UpdatesModel value, $Res Function(UpdatesModel) then) =
+      _$UpdatesModelCopyWithImpl<$Res, UpdatesModel>;
+  @useResult
+  $Res call({List<ReleaseInfo> lastRelease});
+}
+
+/// @nodoc
+class _$UpdatesModelCopyWithImpl<$Res, $Val extends UpdatesModel>
+    implements $UpdatesModelCopyWith<$Res> {
+  _$UpdatesModelCopyWithImpl(this._value, this._then);
+
+  // ignore: unused_field
+  final $Val _value;
+  // ignore: unused_field
+  final $Res Function($Val) _then;
+
+  /// Create a copy of UpdatesModel
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? lastRelease = null,
+  }) {
+    return _then(_value.copyWith(
+      lastRelease: null == lastRelease
+          ? _value.lastRelease
+          : lastRelease // ignore: cast_nullable_to_non_nullable
+              as List<ReleaseInfo>,
+    ) as $Val);
+  }
+}
+
+/// @nodoc
+abstract class _$$UpdatesModelImplCopyWith<$Res>
+    implements $UpdatesModelCopyWith<$Res> {
+  factory _$$UpdatesModelImplCopyWith(
+          _$UpdatesModelImpl value, $Res Function(_$UpdatesModelImpl) then) =
+      __$$UpdatesModelImplCopyWithImpl<$Res>;
+  @override
+  @useResult
+  $Res call({List<ReleaseInfo> lastRelease});
+}
+
+/// @nodoc
+class __$$UpdatesModelImplCopyWithImpl<$Res>
+    extends _$UpdatesModelCopyWithImpl<$Res, _$UpdatesModelImpl>
+    implements _$$UpdatesModelImplCopyWith<$Res> {
+  __$$UpdatesModelImplCopyWithImpl(
+      _$UpdatesModelImpl _value, $Res Function(_$UpdatesModelImpl) _then)
+      : super(_value, _then);
+
+  /// Create a copy of UpdatesModel
+  /// with the given fields replaced by the non-null parameter values.
+  @pragma('vm:prefer-inline')
+  @override
+  $Res call({
+    Object? lastRelease = null,
+  }) {
+    return _then(_$UpdatesModelImpl(
+      lastRelease: null == lastRelease
+          ? _value._lastRelease
+          : lastRelease // ignore: cast_nullable_to_non_nullable
+              as List<ReleaseInfo>,
+    ));
+  }
+}
+
+/// @nodoc
+
+class _$UpdatesModelImpl extends _UpdatesModel with DiagnosticableTreeMixin {
+  _$UpdatesModelImpl({final List<ReleaseInfo> lastRelease = const []})
+      : _lastRelease = lastRelease,
+        super._();
+
+  final List<ReleaseInfo> _lastRelease;
+  @override
+  @JsonKey()
+  List<ReleaseInfo> get lastRelease {
+    if (_lastRelease is EqualUnmodifiableListView) return _lastRelease;
+    // ignore: implicit_dynamic_type
+    return EqualUnmodifiableListView(_lastRelease);
+  }
+
+  @override
+  String toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) {
+    return 'UpdatesModel(lastRelease: $lastRelease)';
+  }
+
+  @override
+  void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+    super.debugFillProperties(properties);
+    properties
+      ..add(DiagnosticsProperty('type', 'UpdatesModel'))
+      ..add(DiagnosticsProperty('lastRelease', lastRelease));
+  }
+
+  @override
+  bool operator ==(Object other) {
+    return identical(this, other) ||
+        (other.runtimeType == runtimeType &&
+            other is _$UpdatesModelImpl &&
+            const DeepCollectionEquality()
+                .equals(other._lastRelease, _lastRelease));
+  }
+
+  @override
+  int get hashCode => Object.hash(
+      runtimeType, const DeepCollectionEquality().hash(_lastRelease));
+
+  /// Create a copy of UpdatesModel
+  /// with the given fields replaced by the non-null parameter values.
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  @override
+  @pragma('vm:prefer-inline')
+  _$$UpdatesModelImplCopyWith<_$UpdatesModelImpl> get copyWith =>
+      __$$UpdatesModelImplCopyWithImpl<_$UpdatesModelImpl>(this, _$identity);
+}
+
+abstract class _UpdatesModel extends UpdatesModel {
+  factory _UpdatesModel({final List<ReleaseInfo> lastRelease}) =
+      _$UpdatesModelImpl;
+  _UpdatesModel._() : super._();
+
+  @override
+  List<ReleaseInfo> get lastRelease;
+
+  /// Create a copy of UpdatesModel
+  /// with the given fields replaced by the non-null parameter values.
+  @override
+  @JsonKey(includeFromJson: false, includeToJson: false)
+  _$$UpdatesModelImplCopyWith<_$UpdatesModelImpl> get copyWith =>
+      throw _privateConstructorUsedError;
+}

lib/providers/update_provider.g.dart

@@ -0,0 +1,24 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'update_provider.dart';
+
+// **************************************************************************
+// RiverpodGenerator
+// **************************************************************************
+
+String _$updateHash() => r'97f7aca4e255d654a9295e1e9e019536faf6455e';
+
+/// See also [Update].
+@ProviderFor(Update)
+final updateProvider = NotifierProvider<Update, UpdatesModel>.internal(
+  Update.new,
+  name: r'updateProvider',
+  debugGetCreateSourceHash:
+      const bool.fromEnvironment('dart.vm.product') ? null : _$updateHash,
+  dependencies: null,
+  allTransitiveDependencies: null,
+);
+
+typedef _$Update = Notifier<UpdatesModel>;
+// ignore_for_file: type=lint
+// ignore_for_file: subtype_of_sealed_class, invalid_use_of_internal_member, invalid_use_of_visible_for_testing_member, deprecated_member_use_from_same_package