40 lines
1.3 KiB
Dart
40 lines
1.3 KiB
Dart
import 'package:collection/collection.dart';
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import 'package:equatable/equatable.dart';
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import 'package:flutter/foundation.dart';
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@immutable
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class AvesXmp extends Equatable {
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final String? xmpString;
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final String? extendedXmpString;
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@override
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List<Object?> get props => [xmpString, extendedXmpString];
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const AvesXmp({
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required this.xmpString,
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this.extendedXmpString,
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});
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static AvesXmp fromList(List<String> xmpStrings) {
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switch (xmpStrings.length) {
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case 0:
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return const AvesXmp(xmpString: null);
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case 1:
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return AvesXmp(xmpString: xmpStrings.single);
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default:
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final byExtending = groupBy<String, bool>(xmpStrings, (v) => v.contains(':HasExtendedXMP='));
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final extending = byExtending[true] ?? [];
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final extension = byExtending[false] ?? [];
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if (extending.length == 1 && extension.length == 1) {
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return AvesXmp(
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xmpString: extending.single,
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extendedXmpString: extension.single,
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);
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}
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// take the first XMP and ignore the rest when the file is weirdly constructed
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debugPrint('warning: entry has ${xmpStrings.length} XMP directories, xmpStrings=$xmpStrings');
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return AvesXmp(xmpString: xmpStrings.firstOrNull);
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}
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}
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}
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