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umbrix/lib/core/model/optional_range.dart

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2024-02-15 19:39:35 +03:30
import 'package:dart_mappable/dart_mappable.dart';
import 'package:dartx/dartx.dart';
import 'package:hiddify/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._fromString(
String input, {
bool allowEmpty = true,
}) =>
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._fromString(input);
} catch (_) {
return null;
}
}
}
class OptionalRangeJsonMapper extends SimpleMapper<OptionalRange> {
const OptionalRangeJsonMapper();
@override
OptionalRange decode(dynamic value) =>
OptionalRange._fromString(value as String);
@override
dynamic encode(OptionalRange self) => self.format();
}