40 lines
1.2 KiB
Dart
40 lines
1.2 KiB
Dart
// lib/metadata/metadata_reader.dart
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import 'dart:io';
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import 'package:audio_metadata_reader/audio_metadata_reader.dart' as amr;
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import 'metadata_model.dart';
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class MetadataReader {
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Future<RawMetadata> readRawMetadata(File file) async {
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try {
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final meta = amr.readMetadata(file, getImage: false);
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return RawMetadata(
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title: meta.title ?? '',
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artist: meta.artist ?? '',
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album: meta.album ?? '',
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// ⭐ genres 和 performers 是非空 List<String>，直接使用
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genres: meta.genres,
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performers: meta.performers,
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year: _toInt(meta.year),
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trackNumber: _toInt(meta.trackNumber),
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trackTotal: _toInt(meta.trackTotal),
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discNumber: _toInt(meta.discNumber),
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totalDisc: _toInt(meta.totalDisc),
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duration: meta.duration,
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);
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} catch (e) {
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return const RawMetadata();
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}
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}
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/// 安全转换为 int，处理 Object 类型
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int _toInt(dynamic value) {
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if (value == null) return 0;
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if (value is int) return value;
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if (value is String) return int.tryParse(value) ?? 0;
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// 有些字段可能是 double 或 num
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if (value is num) return value.toInt();
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return 0;
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}
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}
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