初始化提交

lib/core/model/directories.dart

@@ -0,0 +1,7 @@
+import 'dart:io';
+
+typedef Directories = ({
+  Directory baseDir,
+  Directory workingDir,
+  Directory tempDir
+});

lib/core/model/failures.dart

@@ -0,0 +1,73 @@
+// import 'package:dio/dio.dart';
+// import 'package:kaer_with_panels/app/localization/translations.g.dart';
+
+// typedef PresentableError = ({String type, String? message});
+
+// mixin Failure {
+//   ({String type, String? message}) present(TranslationsEn t);
+// }
+
+// /// failures that are not expected to happen but depending on [error] type might not be relevant (eg network errors)
+// mixin UnexpectedFailure {
+//   Object? get error;
+//   StackTrace? get stackTrace;
+// }
+
+// /// failures that are expected to happen and should be handled by the app
+// /// and should be logged, eg missing permissions
+// mixin ExpectedMeasuredFailure {}
+
+// /// failures ignored by analytics service etc.
+// mixin ExpectedFailure {}
+
+// extension ErrorPresenter on TranslationsEn {
+//   PresentableError errorToPair(Object error) => switch (error) {
+//         UnexpectedFailure(error: final nestedErr?) => errorToPair(nestedErr),
+//         Failure() => error.present(this),
+//         DioException() => error.present(this),
+//         _ => (type: failure.unexpected, message: error.toString()),
+//       };
+
+//   PresentableError presentError(
+//     Object error, {
+//     String? action,
+//   }) {
+//     final pair = errorToPair(error);
+//     if (action == null) return pair;
+//     return (
+//       type: action,
+//       message: pair.type + (pair.message == null ? "" : "\n${pair.message!}"),
+//     );
+//   }
+
+//   String presentShortError(
+//     Object error, {
+//     String? action,
+//   }) {
+//     final pair = errorToPair(error);
+//     if (action == null) return pair.type;
+//     return "$action: ${pair.type}";
+//   }
+// }
+
+// extension DioExceptionPresenter on DioException {
+//   PresentableError present(TranslationsEn t) => switch (type) {
+//         DioExceptionType.connectionTimeout ||
+//         DioExceptionType.sendTimeout ||
+//         DioExceptionType.receiveTimeout =>
+//           (type: t.failure.connection.timeout, message: null),
+//         DioExceptionType.badCertificate => (
+//             type: t.failure.connection.badCertificate,
+//             message: message,
+//           ),
+//         DioExceptionType.badResponse => (
+//             type: t.failure.connection.badResponse,
+//             message: message,
+//           ),
+//         DioExceptionType.connectionError => (
+//             type: t.failure.connection.connectionError,
+//             message: message,
+//           ),
+//         _ => (type: t.failure.connection.unexpected, message: message),
+//       };
+// }

lib/core/model/optional_range.dart

@@ -0,0 +1,56 @@
+import 'package:dart_mappable/dart_mappable.dart';
+import 'package:dartx/dartx.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+// import 'package:kaer_with_panels/core/localization/translations.dart';
+
+part 'optional_range.mapper.dart';
+
+@MappableClass()
+class OptionalRange with OptionalRangeMappable {
+  const OptionalRange({this.min, this.max});
+
+  final int? min;
+  final int? max;
+
+  String format() => [min, max].whereNotNull().join("-");
+  // String present(TranslationsEn t) =>
+  //     format().isEmpty ? t.general.notSet : format();
+
+  factory OptionalRange.parse(
+    String input, {
+    bool allowEmpty = false,
+  }) =>
+      switch (input.split("-")) {
+        [final String val] when val.isEmpty && allowEmpty =>
+          const OptionalRange(),
+        [final String min] => OptionalRange(min: int.parse(min)),
+        [final String min, final String max] => OptionalRange(
+            min: int.parse(min),
+            max: int.parse(max),
+          ),
+        _ => throw Exception("Invalid range: $input"),
+      };
+
+  static OptionalRange? tryParse(
+    String input, {
+    bool allowEmpty = false,
+  }) {
+    try {
+      return OptionalRange.parse(input, allowEmpty: allowEmpty);
+    } catch (_) {
+      return null;
+    }
+  }
+}
+
+class OptionalRangeJsonConverter
+    implements JsonConverter<OptionalRange, String> {
+  const OptionalRangeJsonConverter();
+
+  @override
+  OptionalRange fromJson(String json) =>
+      OptionalRange.parse(json, allowEmpty: true);
+
+  @override
+  String toJson(OptionalRange object) => object.format();
+}