302 lines
8.2 KiB
Dart
302 lines
8.2 KiB
Dart
/// 离线下载任务状态
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enum RemoteDownloadStatus {
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queued,
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running,
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completed,
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error,
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suspending,
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suspended;
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static RemoteDownloadStatus fromString(String value) {
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return RemoteDownloadStatus.values.firstWhere(
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(e) => e.name == value,
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orElse: () => RemoteDownloadStatus.queued,
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);
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}
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String get text {
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switch (this) {
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case RemoteDownloadStatus.queued:
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return '排队中';
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case RemoteDownloadStatus.running:
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return '下载中';
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case RemoteDownloadStatus.completed:
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return '已完成';
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case RemoteDownloadStatus.error:
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return '出错';
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case RemoteDownloadStatus.suspending:
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return '暂停中';
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case RemoteDownloadStatus.suspended:
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return '已暂停';
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}
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}
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bool get isOngoing =>
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this == RemoteDownloadStatus.queued ||
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this == RemoteDownloadStatus.running ||
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this == RemoteDownloadStatus.suspending ||
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this == RemoteDownloadStatus.suspended;
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}
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/// 种子文件信息
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class DownloadFileInfo {
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final int index;
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final String name;
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final int size;
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final double progress;
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final bool selected;
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const DownloadFileInfo({
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required this.index,
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required this.name,
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required this.size,
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required this.progress,
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required this.selected,
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});
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factory DownloadFileInfo.fromJson(Map<String, dynamic> json) {
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return DownloadFileInfo(
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index: json['index'] as int,
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name: json['name'] as String,
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size: json['size'] as int,
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progress: (json['progress'] as num).toDouble(),
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selected: json['selected'] as bool? ?? true,
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);
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}
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}
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/// 下载详情（aria2 返回的信息）
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class DownloadInfo {
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final String name;
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final String state;
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final int total;
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final int downloaded;
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final int downloadSpeed;
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final int uploaded;
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final int uploadSpeed;
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final String hash;
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final List<DownloadFileInfo> files;
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final int numPieces;
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const DownloadInfo({
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required this.name,
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required this.state,
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required this.total,
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required this.downloaded,
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required this.downloadSpeed,
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required this.uploaded,
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required this.uploadSpeed,
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required this.hash,
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required this.files,
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this.numPieces = 0,
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});
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double get progress => total > 0 ? downloaded / total : 0.0;
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String get speedText {
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if (downloadSpeed <= 0) return '';
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if (downloadSpeed < 1024) return '$downloadSpeed B/s';
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if (downloadSpeed < 1024 * 1024) {
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return '${(downloadSpeed / 1024).toStringAsFixed(1)} KB/s';
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}
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return '${(downloadSpeed / (1024 * 1024)).toStringAsFixed(1)} MB/s';
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}
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factory DownloadInfo.fromJson(Map<String, dynamic> json) {
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final filesList = json['files'] as List<dynamic>? ?? [];
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return DownloadInfo(
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name: json['name'] as String? ?? '',
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state: json['state'] as String? ?? '',
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total: (json['total'] as num?)?.toInt() ?? 0,
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downloaded: (json['downloaded'] as num?)?.toInt() ?? 0,
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downloadSpeed: (json['download_speed'] as num?)?.toInt() ?? 0,
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uploaded: (json['uploaded'] as num?)?.toInt() ?? 0,
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uploadSpeed: (json['upload_speed'] as num?)?.toInt() ?? 0,
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hash: json['hash'] as String? ?? '',
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files: filesList
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.map((f) => DownloadFileInfo.fromJson(f as Map<String, dynamic>))
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.toList(),
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numPieces: (json['num_pieces'] as num?)?.toInt() ?? 0,
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);
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}
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}
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/// 处理节点信息
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class TaskNode {
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final String id;
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final String name;
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final String type;
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const TaskNode({
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required this.id,
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required this.name,
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required this.type,
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});
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String get displayName {
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switch (type) {
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case 'master':
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return '$name（本机）';
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default:
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return name;
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}
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}
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factory TaskNode.fromJson(Map<String, dynamic> json) {
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return TaskNode(
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id: json['id'] as String? ?? '',
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name: json['name'] as String? ?? '',
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type: json['type'] as String? ?? '',
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);
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}
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}
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/// 任务摘要
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class TaskSummary {
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final String phase;
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final String dst;
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final int failed;
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final String src;
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final String srcStr;
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final DownloadInfo? download;
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const TaskSummary({
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required this.phase,
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required this.dst,
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required this.failed,
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required this.src,
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required this.srcStr,
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this.download,
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});
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factory TaskSummary.fromJson(Map<String, dynamic> json) {
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return TaskSummary(
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phase: json['phase'] as String? ?? '',
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dst: json['props']?['dst'] as String? ?? '',
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failed: (json['props']?['failed'] as num?)?.toInt() ?? 0,
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src: json['props']?['src'] as String? ?? '',
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srcStr: json['props']?['src_str'] as String? ?? '',
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download: json['props']?['download'] != null
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? DownloadInfo.fromJson(
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json['props']!['download'] as Map<String, dynamic>)
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: null,
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);
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}
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}
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/// 离线下载任务模型
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class RemoteDownloadTaskModel {
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final String id;
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final RemoteDownloadStatus status;
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final String type;
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final DateTime createdAt;
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final DateTime updatedAt;
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final int duration;
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final String? error;
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final TaskNode? node;
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final TaskSummary? summary;
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final int resumeTime;
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final int retryCount;
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const RemoteDownloadTaskModel({
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required this.id,
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required this.status,
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required this.type,
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required this.createdAt,
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required this.updatedAt,
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required this.duration,
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this.error,
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this.node,
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this.summary,
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this.resumeTime = 0,
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this.retryCount = 0,
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});
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String getFileNameFromUrl(String url) {
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if (url.isEmpty) return '';
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try {
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final uri = Uri.parse(url);
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final segments = uri.pathSegments;
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if (segments.isEmpty) return '';
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final fileName = segments.last;
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return fileName.isNotEmpty ? fileName : '';
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} catch (e) {
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return '';
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}
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}
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/// 显示名称：优先使用 download.name，其次 srcStr，最后 id
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String get displayName {
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final dlName = summary?.download?.name;
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if (dlName != null && dlName.isNotEmpty) {
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return dlName;
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} else {
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final srcStr = summary?.srcStr;
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if (srcStr == null || srcStr.isEmpty) return id;
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final fileName = getFileNameFromUrl(srcStr);
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if (fileName.isEmpty) return id;
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return fileName;
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}
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}
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/// 格式化耗时（duration 单位为毫秒）
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String get durationText {
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final seconds = duration ~/ 1000;
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if (seconds <= 0) return '-';
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if (seconds < 60) return '$seconds 秒';
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if (seconds < 3600) return '${seconds ~/ 60} 分 ${seconds % 60} 秒';
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final hours = seconds ~/ 3600;
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final minutes = (seconds % 3600) ~/ 60;
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return '$hours 小时 $minutes 分';
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}
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/// 输入源显示文本
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String get srcDisplayText {
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final srcStr = summary?.srcStr;
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if (srcStr != null && srcStr.isNotEmpty) return srcStr;
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final src = summary?.src;
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if (src!.isNotEmpty) {
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// 从 cloudreve URI 提取文件名
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final parts = src.split('/');
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return parts.isNotEmpty ? parts.last : src;
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}
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return '-';
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}
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/// 输出目标显示文本（从 cloudreve URI 转换为相对路径）
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String get dstDisplayText {
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final dst = summary?.dst ?? '';
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if (dst.isEmpty) return '-';
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if (dst.startsWith('cloudreve://my')) {
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final relative = dst.replaceFirst('cloudreve://my', '');
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return relative.isEmpty ? '/' : relative;
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}
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return dst;
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}
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factory RemoteDownloadTaskModel.fromJson(Map<String, dynamic> json) {
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return RemoteDownloadTaskModel(
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id: json['id'] as String,
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status: RemoteDownloadStatus.fromString(json['status'] as String),
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type: json['type'] as String? ?? '',
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createdAt: json['created_at'] != null
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? DateTime.parse(json['created_at'] as String).toLocal()
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: DateTime.now(),
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updatedAt: json['updated_at'] != null
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? DateTime.parse(json['updated_at'] as String).toLocal()
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: DateTime.now(),
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duration: (json['duration'] as num?)?.toInt() ?? 0,
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error: json['error'] as String?,
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node: json['node'] != null
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? TaskNode.fromJson(json['node'] as Map<String, dynamic>)
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: null,
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summary: json['summary'] != null
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? TaskSummary.fromJson(json['summary'] as Map<String, dynamic>)
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: null,
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resumeTime: (json['resume_time'] as num?)?.toInt() ?? 0,
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retryCount: (json['retry_count'] as num?)?.toInt() ?? 0,
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);
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}
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}
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