generated from dellevin/template
873 lines
33 KiB
Dart
873 lines
33 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'package:archive/archive_io.dart';
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import 'package:file_picker/file_picker.dart';
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import 'package:flutter/foundation.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:path/path.dart' as path;
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import 'package:share_plus/share_plus.dart';
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import 'package:shared_preferences/shared_preferences.dart';
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import 'package:sqflite/sqflite.dart';
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import '../database_helper.dart';
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import '../user_prefs.dart';
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/// 数据备份服务 - 支持导出和导入数据（包含图片）
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class BackupService {
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static final BackupService instance = BackupService._init();
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BackupService._init();
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// ─── 共享导出逻辑 ─────────────────────────────────────
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/// 收集所有表数据和图片，构建 ZIP 字节
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Future<_ExportData> _buildExportData() async {
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final db = await DatabaseHelper.instance.database;
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final movies = await db.query('movies');
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final books = await db.query('books');
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final notes = await db.query('notes');
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final movieReviews = await db.query('movie_reviews');
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final moviePosters = await db.query('movie_posters');
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final bookReviews = await db.query('book_reviews');
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final bookExcerpts = await db.query('book_excerpts');
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final tags = await db.query('tags');
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final readerBooks = await db.query('reader_books');
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final bookAnnotations = await db.query('book_annotations');
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final notePlus = await db.query('note_plus');
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// 收集图片路径
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final imagePaths = <String>{};
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for (final m in movies) {
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final p = m['poster_path'] as String?;
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if (p != null && p.isNotEmpty) imagePaths.add(p);
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}
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for (final b in books) {
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final p = b['cover_path'] as String?;
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if (p != null && p.isNotEmpty) imagePaths.add(p);
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}
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for (final p in moviePosters) {
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final pp = p['poster_path'] as String?;
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if (pp != null && pp.isNotEmpty) imagePaths.add(pp);
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}
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for (final n in notes) {
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final imagesJson = n['images'] as String?;
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if (imagesJson != null && imagesJson.isNotEmpty) {
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try {
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for (final ip in jsonDecode(imagesJson) as List<dynamic>) {
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if (ip is String && ip.isNotEmpty) imagePaths.add(ip);
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}
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} catch (e) {
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debugPrint('[BackupService] 笔记图片解析失败 (noteId=${n['id']}): $e');
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}
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}
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}
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// reader_books 的封面在 epub_books/ 目录下，由 epub_books 归档处理
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// 不加入 imagePaths，避免 basename 碰撞导致所有封面变成同一个路径
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final userPrefs = UserPrefs();
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final userInfo = {
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'nickname': userPrefs.nickname,
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'motto': userPrefs.motto,
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'avatarPath': userPrefs.avatarPath,
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};
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final avatarPath = userPrefs.avatarPath;
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if (avatarPath != null && avatarPath.isNotEmpty) imagePaths.add(avatarPath);
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// 构建备份数据
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final backupData = {
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'version': 2,
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'exportTime': DateTime.now().toIso8601String(),
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'appName': 'MookNote',
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'hasImages': true,
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'userInfo': userInfo,
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'sharedPrefs': await _exportSharedPrefs(),
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'data': {
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'movies': movies,
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'books': books,
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'notes': notes,
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'movie_reviews': movieReviews,
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'movie_posters': moviePosters,
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'book_reviews': bookReviews,
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'book_excerpts': bookExcerpts,
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'tags': tags,
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'reader_books': readerBooks,
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'book_annotations': bookAnnotations,
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'note_plus': notePlus,
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},
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};
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// 创建 ZIP（逐文件写入磁盘，避免全部加载到内存）
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final tempDir = await getTemporaryDirectory();
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final tempZipPath = path.join(tempDir.path, 'mooknote_backup_temp.zip');
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final encoder = ZipFileEncoder();
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encoder.create(tempZipPath);
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try {
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// data.json
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final jsonString = const JsonEncoder.withIndent(' ').convert(backupData);
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final jsonBytes = Uint8List.fromList(utf8.encode(jsonString));
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final dataFile = File(path.join(tempDir.path, 'mooknote_data.json'));
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await dataFile.writeAsBytes(jsonBytes);
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encoder.addFile(dataFile, 'data.json');
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await dataFile.delete();
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int imageCount = 0;
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final appDir = await getApplicationDocumentsDirectory();
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final imagesRoot = path.join(appDir.path, 'images');
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for (final imagePath in imagePaths) {
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final file = File(imagePath);
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if (await file.exists()) {
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String relativePath;
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if (imagePath.startsWith(imagesRoot)) {
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relativePath = imagePath.substring(imagesRoot.length + 1);
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} else {
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relativePath = path.basename(imagePath);
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}
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encoder.addFile(file, 'images/$relativePath');
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imageCount++;
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}
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}
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// 收集 epub_books 目录下的 epub 文件
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int epubCount = 0;
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final epubRoot = path.join(appDir.path, 'epub_books');
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final epubDir = Directory(epubRoot);
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if (await epubDir.exists()) {
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await for (final entity in epubDir.list(recursive: true)) {
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if (entity is File) {
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final relativePath = entity.path.substring(epubRoot.length + 1);
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encoder.addFile(entity, 'epub_books/$relativePath');
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epubCount++;
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}
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}
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}
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encoder.close();
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// 读取最终 zip 文件
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final zipFile = File(tempZipPath);
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final zipBytes = await zipFile.readAsBytes();
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await zipFile.delete();
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return _ExportData(
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zipBytes: Uint8List.fromList(zipBytes),
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movieCount: movies.length,
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bookCount: books.length,
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noteCount: notes.length,
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imageCount: imageCount,
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epubCount: epubCount,
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);
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} catch (e) {
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encoder.close();
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try { await File(tempZipPath).delete(); } catch (_) {}
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rethrow;
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}
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}
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// ─── 手动导出 ─────────────────────────────────────────
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/// 导出所有数据和图片为 ZIP 文件，并选择保存路径
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Future<ExportResult> exportDataWithImages() async {
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try {
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final data = await _buildExportData();
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final tempDir = await getTemporaryDirectory();
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final fileName = 'mooknote_backup_${_formatDateTime(DateTime.now())}.zip';
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final tempFilePath = path.join(tempDir.path, fileName);
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await File(tempFilePath).writeAsBytes(data.zipBytes);
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String? finalPath;
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try {
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final outputPath = await FilePicker.platform.saveFile(
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dialogTitle: '保存备份文件',
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fileName: fileName,
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type: FileType.custom,
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allowedExtensions: ['zip'],
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bytes: data.zipBytes,
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);
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if (outputPath == null) {
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return ExportResult.cancelled();
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}
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finalPath = outputPath;
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if (finalPath != tempFilePath) {
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await File(finalPath).writeAsBytes(data.zipBytes);
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}
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} catch (e) {
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finalPath = tempFilePath;
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}
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return ExportResult.success(
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filePath: finalPath,
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movieCount: data.movieCount,
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bookCount: data.bookCount,
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noteCount: data.noteCount,
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imageCount: data.imageCount,
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);
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} catch (e) {
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return ExportResult.error('导出失败: $e');
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}
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}
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/// 分享备份文件
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Future<void> shareBackup(String filePath) async {
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final file = XFile(filePath);
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await Share.shareXFiles([file], subject: 'MookNote 数据备份', text: '这是我的 MookNote 数据备份文件');
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}
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// ─── 自动备份导出 ─────────────────────────────────────
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/// 导出数据用于自动备份（返回字节数据）
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Future<AutoBackupExportResult> exportDataForAutoBackup() async {
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try {
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final data = await _buildExportData();
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return AutoBackupExportResult.success(
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zipBytes: data.zipBytes,
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movieCount: data.movieCount,
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bookCount: data.bookCount,
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noteCount: data.noteCount,
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imageCount: data.imageCount,
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epubCount: data.epubCount,
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);
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} catch (e) {
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return AutoBackupExportResult.error('导出失败: $e');
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}
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}
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// ─── 导入 ─────────────────────────────────────────────
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/// 选择并导入备份文件（支持 ZIP 和旧版 JSON）
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Future<ImportResult> importData() async {
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try {
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final result = await FilePicker.platform.pickFiles(
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type: FileType.custom,
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allowedExtensions: ['zip', 'json'],
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allowMultiple: false,
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);
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if (result == null || result.files.isEmpty) return ImportResult.cancelled();
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final filePath = result.files.first.path;
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if (filePath == null) return ImportResult.error('无法读取文件路径');
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final file = File(filePath);
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final extension = path.extension(filePath).toLowerCase();
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Map<String, dynamic> backupData;
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int imageCount = 0;
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// 完整相对路径 → 新绝对路径 的映射（避免同名文件碰撞）
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final imagePathMap = <String, String>{};
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// epub_books/ 内相对路径 → 新绝对路径 的映射
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final epubFileMap = <String, String>{};
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if (extension == '.zip') {
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final bytes = await file.readAsBytes();
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final archive = ZipDecoder().decodeBytes(bytes);
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final dataFile = archive.findFile('data.json');
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if (dataFile == null) return ImportResult.error('备份文件中没有找到数据文件');
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backupData = jsonDecode(utf8.decode(dataFile.content as List<int>)) as Map<String, dynamic>;
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final appDir = await getApplicationDocumentsDirectory();
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final imagesDir = Directory(path.join(appDir.path, 'images'));
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if (!await imagesDir.exists()) await imagesDir.create(recursive: true);
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for (final archiveFile in archive) {
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if (archiveFile.name.startsWith('images/')) {
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final relativePath = archiveFile.name.substring(7);
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final outputFile = File(path.join(imagesDir.path, relativePath));
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if (!await outputFile.parent.exists()) await outputFile.parent.create(recursive: true);
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await outputFile.writeAsBytes(archiveFile.content as List<int>);
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// 用完整相对路径做 key，避免不同目录下同名文件碰撞
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imagePathMap[relativePath] = outputFile.path;
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imageCount++;
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} else if (archiveFile.name.startsWith('epub_books/')) {
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final relativePath = archiveFile.name.substring(12);
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final epubDir = Directory(path.join(appDir.path, 'epub_books'));
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if (!await epubDir.exists()) await epubDir.create(recursive: true);
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final outputFile = File(path.join(epubDir.path, relativePath));
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if (!await outputFile.parent.exists()) await outputFile.parent.create(recursive: true);
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await outputFile.writeAsBytes(archiveFile.content as List<int>);
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epubFileMap[relativePath] = outputFile.path;
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}
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}
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} else {
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// 旧版 JSON
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backupData = jsonDecode(await file.readAsString()) as Map<String, dynamic>;
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}
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if (!backupData.containsKey('data')) return ImportResult.error('无效的备份文件格式');
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// 验证版本
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final version = backupData['version'] as int? ?? 1;
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if (version > 2) {
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debugPrint('[BackupService] 警告: 备份版本 $version 高于当前支持的版本 2，部分数据可能丢失');
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}
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final data = backupData['data'] as Map<String, dynamic>;
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final db = await DatabaseHelper.instance.database;
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final moviesCols = await _getTableColumns(db, 'movies');
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final booksCols = await _getTableColumns(db, 'books');
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final notesCols = await _getTableColumns(db, 'notes');
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final movieReviewsCols = await _getTableColumns(db, 'movie_reviews');
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final moviePostersCols = await _getTableColumns(db, 'movie_posters');
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final bookReviewsCols = await _getTableColumns(db, 'book_reviews');
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final bookExcerptsCols = await _getTableColumns(db, 'book_excerpts');
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final tagsCols = await _getTableColumns(db, 'tags');
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final readerBooksCols = await _getTableColumns(db, 'reader_books');
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final bookAnnotationsCols = await _getTableColumns(db, 'book_annotations');
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final notePlusCols = await _getTableColumns(db, 'note_plus');
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await db.transaction((txn) async {
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await txn.delete('movie_reviews');
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await txn.delete('movie_posters');
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await txn.delete('book_reviews');
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await txn.delete('book_excerpts');
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await txn.delete('book_annotations');
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await txn.delete('movies');
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await txn.delete('books');
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await txn.delete('notes');
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await txn.delete('reader_books');
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await txn.delete('note_plus');
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await txn.delete('tags');
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if (data.containsKey('movies')) {
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for (final m in data['movies'] as List) {
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await txn.insert('movies', _updateImagePath(_convertToDbMapSafe(m, moviesCols), 'poster_path', imagePathMap));
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}
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}
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if (data.containsKey('books')) {
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for (final b in data['books'] as List) {
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await txn.insert('books', _updateImagePath(_convertToDbMapSafe(b, booksCols), 'cover_path', imagePathMap));
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}
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}
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if (data.containsKey('notes')) {
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for (final n in data['notes'] as List) {
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await txn.insert('notes', _updateNoteImagesPath(_convertToDbMapSafe(n, notesCols), imagePathMap));
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}
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}
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if (data.containsKey('movie_reviews')) {
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for (final r in data['movie_reviews'] as List) {
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await txn.insert('movie_reviews', _convertToDbMapSafe(r, movieReviewsCols));
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}
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}
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if (data.containsKey('movie_posters')) {
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for (final p in data['movie_posters'] as List) {
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await txn.insert('movie_posters', _updateImagePath(_convertToDbMapSafe(p, moviePostersCols), 'poster_path', imagePathMap));
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}
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}
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if (data.containsKey('book_reviews')) {
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for (final r in data['book_reviews'] as List) {
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await txn.insert('book_reviews', _convertToDbMapSafe(r, bookReviewsCols));
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}
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}
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if (data.containsKey('book_excerpts')) {
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for (final e in data['book_excerpts'] as List) {
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await txn.insert('book_excerpts', _convertToDbMapSafe(e, bookExcerptsCols));
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}
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}
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if (data.containsKey('reader_books')) {
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for (final rb in data['reader_books'] as List) {
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var row = _updateImagePath(_convertToDbMapSafe(rb, readerBooksCols), 'cover_path', imagePathMap);
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row = _updateEpubPaths(row, epubFileMap);
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await txn.insert('reader_books', row);
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}
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}
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if (data.containsKey('book_annotations')) {
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for (final a in data['book_annotations'] as List) {
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await txn.insert('book_annotations', _convertToDbMapSafe(a, bookAnnotationsCols));
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}
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}
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if (data.containsKey('note_plus')) {
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for (final np in data['note_plus'] as List) {
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await txn.insert('note_plus', _convertToDbMapSafe(np, notePlusCols));
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}
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}
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if (data.containsKey('tags')) {
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for (final t in data['tags'] as List) {
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final map = _convertToDbMapSafe(t, tagsCols);
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await txn.rawInsert(
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'INSERT OR IGNORE INTO tags (id, name, type, created_at) VALUES (?, ?, ?, ?)',
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[map['id'], map['name'], map['type'], map['created_at']],
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);
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}
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}
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});
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// 恢复用户信息
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await _restoreUserInfo(backupData, imagePathMap);
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return ImportResult.success(_buildStats(data, imageCount));
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} catch (e) {
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return ImportResult.error('导入失败: $e');
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}
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}
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/// 从 ZIP 字节数据恢复（供 WebDAV 同步等场景使用）
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Future<ImportResult> restoreFromZipBytes(Uint8List zipBytes) async {
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try {
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final archive = ZipDecoder().decodeBytes(zipBytes);
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final dataFile = archive.findFile('data.json');
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if (dataFile == null) return ImportResult.error('备份文件中没有找到数据文件');
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final backupData = jsonDecode(utf8.decode(dataFile.content as List<int>)) as Map<String, dynamic>;
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final imagePathMap = <String, String>{};
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final epubFileMap = <String, String>{};
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int imageCount = 0;
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final appDir = await getApplicationDocumentsDirectory();
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final imagesDir = Directory(path.join(appDir.path, 'images'));
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if (!await imagesDir.exists()) await imagesDir.create(recursive: true);
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for (final archiveFile in archive) {
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if (archiveFile.name.startsWith('images/')) {
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final relativePath = archiveFile.name.substring(7);
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final outputFile = File(path.join(imagesDir.path, relativePath));
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if (!await outputFile.parent.exists()) await outputFile.parent.create(recursive: true);
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await outputFile.writeAsBytes(archiveFile.content as List<int>);
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imagePathMap[relativePath] = outputFile.path;
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imageCount++;
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} else if (archiveFile.name.startsWith('epub_books/')) {
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final relativePath = archiveFile.name.substring(12);
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final epubDir = Directory(path.join(appDir.path, 'epub_books'));
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if (!await epubDir.exists()) await epubDir.create(recursive: true);
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final outputFile = File(path.join(epubDir.path, relativePath));
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if (!await outputFile.parent.exists()) await outputFile.parent.create(recursive: true);
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await outputFile.writeAsBytes(archiveFile.content as List<int>);
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epubFileMap[relativePath] = outputFile.path;
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}
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}
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if (!backupData.containsKey('data')) return ImportResult.error('无效的备份文件格式');
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final version = backupData['version'] as int? ?? 1;
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if (version > 2) {
|
||
debugPrint('[BackupService] 警告: 备份版本 $version 高于当前支持的版本 2，部分数据可能丢失');
|
||
}
|
||
|
||
final data = backupData['data'] as Map<String, dynamic>;
|
||
final db = await DatabaseHelper.instance.database;
|
||
|
||
final moviesCols = await _getTableColumns(db, 'movies');
|
||
final booksCols = await _getTableColumns(db, 'books');
|
||
final notesCols = await _getTableColumns(db, 'notes');
|
||
final movieReviewsCols = await _getTableColumns(db, 'movie_reviews');
|
||
final moviePostersCols = await _getTableColumns(db, 'movie_posters');
|
||
final bookReviewsCols = await _getTableColumns(db, 'book_reviews');
|
||
final bookExcerptsCols = await _getTableColumns(db, 'book_excerpts');
|
||
final tagsCols = await _getTableColumns(db, 'tags');
|
||
final readerBooksCols = await _getTableColumns(db, 'reader_books');
|
||
final bookAnnotationsCols = await _getTableColumns(db, 'book_annotations');
|
||
final notePlusCols = await _getTableColumns(db, 'note_plus');
|
||
|
||
await db.transaction((txn) async {
|
||
await txn.delete('movie_reviews');
|
||
await txn.delete('movie_posters');
|
||
await txn.delete('book_reviews');
|
||
await txn.delete('book_excerpts');
|
||
await txn.delete('book_annotations');
|
||
await txn.delete('movies');
|
||
await txn.delete('books');
|
||
await txn.delete('notes');
|
||
await txn.delete('reader_books');
|
||
await txn.delete('note_plus');
|
||
await txn.delete('tags'); // 修复: 之前漏删 tags 表
|
||
|
||
if (data.containsKey('movies')) {
|
||
for (final m in data['movies'] as List) {
|
||
await txn.insert('movies', _updateImagePath(_convertToDbMapSafe(m, moviesCols), 'poster_path', imagePathMap));
|
||
}
|
||
}
|
||
if (data.containsKey('books')) {
|
||
for (final b in data['books'] as List) {
|
||
await txn.insert('books', _updateImagePath(_convertToDbMapSafe(b, booksCols), 'cover_path', imagePathMap));
|
||
}
|
||
}
|
||
if (data.containsKey('notes')) {
|
||
for (final n in data['notes'] as List) {
|
||
await txn.insert('notes', _updateNoteImagesPath(_convertToDbMapSafe(n, notesCols), imagePathMap));
|
||
}
|
||
}
|
||
if (data.containsKey('movie_reviews')) {
|
||
for (final r in data['movie_reviews'] as List) {
|
||
await txn.insert('movie_reviews', _convertToDbMapSafe(r, movieReviewsCols));
|
||
}
|
||
}
|
||
if (data.containsKey('movie_posters')) {
|
||
for (final p in data['movie_posters'] as List) {
|
||
await txn.insert('movie_posters', _updateImagePath(_convertToDbMapSafe(p, moviePostersCols), 'poster_path', imagePathMap));
|
||
}
|
||
}
|
||
if (data.containsKey('book_reviews')) {
|
||
for (final r in data['book_reviews'] as List) {
|
||
await txn.insert('book_reviews', _convertToDbMapSafe(r, bookReviewsCols));
|
||
}
|
||
}
|
||
if (data.containsKey('book_excerpts')) {
|
||
for (final e in data['book_excerpts'] as List) {
|
||
await txn.insert('book_excerpts', _convertToDbMapSafe(e, bookExcerptsCols));
|
||
}
|
||
}
|
||
if (data.containsKey('reader_books')) {
|
||
for (final rb in data['reader_books'] as List) {
|
||
var row = _updateImagePath(_convertToDbMapSafe(rb, readerBooksCols), 'cover_path', imagePathMap);
|
||
row = _updateEpubPaths(row, epubFileMap);
|
||
await txn.insert('reader_books', row);
|
||
}
|
||
}
|
||
if (data.containsKey('book_annotations')) {
|
||
for (final a in data['book_annotations'] as List) {
|
||
await txn.insert('book_annotations', _convertToDbMapSafe(a, bookAnnotationsCols));
|
||
}
|
||
}
|
||
if (data.containsKey('note_plus')) {
|
||
for (final np in data['note_plus'] as List) {
|
||
await txn.insert('note_plus', _convertToDbMapSafe(np, notePlusCols));
|
||
}
|
||
}
|
||
if (data.containsKey('tags')) {
|
||
for (final t in data['tags'] as List) {
|
||
final map = _convertToDbMapSafe(t, tagsCols);
|
||
await txn.rawInsert(
|
||
'INSERT OR IGNORE INTO tags (id, name, type, created_at) VALUES (?, ?, ?, ?)',
|
||
[map['id'], map['name'], map['type'], map['created_at']],
|
||
);
|
||
}
|
||
}
|
||
});
|
||
|
||
await _restoreUserInfo(backupData, imagePathMap);
|
||
return ImportResult.success(_buildStats(data, imageCount));
|
||
} catch (e) {
|
||
return ImportResult.error('恢复失败: $e');
|
||
}
|
||
}
|
||
|
||
// ─── 内部辅助方法 ─────────────────────────────────────
|
||
|
||
Future<void> _restoreUserInfo(Map<String, dynamic> backupData, Map<String, String> imagePathMap) async {
|
||
if (!backupData.containsKey('userInfo')) return;
|
||
final userInfo = backupData['userInfo'] as Map<String, dynamic>;
|
||
final userPrefs = UserPrefs();
|
||
|
||
if (userInfo.containsKey('nickname')) await userPrefs.setNickname(userInfo['nickname'] as String);
|
||
if (userInfo.containsKey('motto')) await userPrefs.setMotto(userInfo['motto'] as String);
|
||
if (userInfo.containsKey('avatarPath')) {
|
||
final avatarPath = userInfo['avatarPath'] as String?;
|
||
if (avatarPath != null && avatarPath.isNotEmpty) {
|
||
final relPath = _toRelativePath(avatarPath);
|
||
if (imagePathMap.containsKey(relPath)) {
|
||
await userPrefs.setAvatarPath(imagePathMap[relPath]!);
|
||
}
|
||
}
|
||
}
|
||
|
||
// 恢复完整 SharedPreferences
|
||
if (backupData.containsKey('sharedPrefs')) {
|
||
await _restoreSharedPrefs(backupData['sharedPrefs'] as Map<String, dynamic>);
|
||
}
|
||
}
|
||
|
||
/// 导出完整 SharedPreferences
|
||
Future<Map<String, dynamic>> _exportSharedPrefs() async {
|
||
final prefs = await SharedPreferences.getInstance();
|
||
final keys = prefs.getKeys();
|
||
final map = <String, dynamic>{};
|
||
for (final key in keys) {
|
||
map[key] = prefs.get(key);
|
||
}
|
||
return map;
|
||
}
|
||
|
||
/// 恢复 SharedPreferences（保留当前设备的同步和路径配置）
|
||
Future<void> _restoreSharedPrefs(Map<String, dynamic> data) async {
|
||
final prefs = await SharedPreferences.getInstance();
|
||
// 这些键是设备特定的，不应从备份恢复
|
||
const skipKeys = {
|
||
'avatarPath',
|
||
'webdav_config',
|
||
'webdav_last_sync',
|
||
'webdav_auto_sync',
|
||
'webdav_auto_sync_interval',
|
||
};
|
||
for (final entry in data.entries) {
|
||
final key = entry.key;
|
||
final value = entry.value;
|
||
if (skipKeys.contains(key)) continue;
|
||
if (value is String) {
|
||
await prefs.setString(key, value);
|
||
} else if (value is int) {
|
||
await prefs.setInt(key, value);
|
||
} else if (value is double) {
|
||
await prefs.setDouble(key, value);
|
||
} else if (value is bool) {
|
||
await prefs.setBool(key, value);
|
||
} else if (value is List) {
|
||
await prefs.setStringList(key, value.cast<String>());
|
||
}
|
||
}
|
||
}
|
||
|
||
Map<String, int> _buildStats(Map<String, dynamic> data, int imageCount) {
|
||
final stats = <String, int>{};
|
||
if (data.containsKey('movies')) stats['影视'] = (data['movies'] as List).length;
|
||
if (data.containsKey('books')) stats['书籍'] = (data['books'] as List).length;
|
||
if (data.containsKey('notes')) stats['笔记'] = (data['notes'] as List).length;
|
||
if (data.containsKey('movie_reviews')) stats['影评'] = (data['movie_reviews'] as List).length;
|
||
if (data.containsKey('movie_posters')) stats['海报'] = (data['movie_posters'] as List).length;
|
||
if (data.containsKey('book_reviews')) stats['书评'] = (data['book_reviews'] as List).length;
|
||
if (data.containsKey('book_excerpts')) stats['书摘'] = (data['book_excerpts'] as List).length;
|
||
if (data.containsKey('tags')) stats['标签'] = (data['tags'] as List).length;
|
||
if (data.containsKey('reader_books')) stats['阅读'] = (data['reader_books'] as List).length;
|
||
if (data.containsKey('book_annotations')) stats['批注'] = (data['book_annotations'] as List).length;
|
||
if (data.containsKey('note_plus')) stats['高级笔记'] = (data['note_plus'] as List).length;
|
||
if (imageCount > 0) stats['图片'] = imageCount;
|
||
return stats;
|
||
}
|
||
|
||
/// 将绝对路径转为 images/ 下的相对路径（用于 imagePathMap key）
|
||
String _toRelativePath(String absolutePath) {
|
||
// 尝试提取 images/ 后面的部分
|
||
final idx = absolutePath.indexOf('/images/');
|
||
if (idx >= 0) return absolutePath.substring(idx + 8); // skip '/images/'
|
||
// Windows 路径
|
||
final winIdx = absolutePath.indexOf('\\images\\');
|
||
if (winIdx >= 0) return absolutePath.substring(winIdx + 8);
|
||
return path.basename(absolutePath);
|
||
}
|
||
|
||
Map<String, dynamic> _convertToDbMapSafe(dynamic item, Set<String> validColumns) {
|
||
final raw = _convertToDbMap(item);
|
||
if (raw.isEmpty) return raw;
|
||
return Map.fromEntries(raw.entries.where((e) => validColumns.contains(e.key)));
|
||
}
|
||
|
||
Future<Set<String>> _getTableColumns(Database db, String table) async {
|
||
final columns = await db.rawQuery('PRAGMA table_info($table)');
|
||
return columns.map((c) => c['name'] as String).toSet();
|
||
}
|
||
|
||
Map<String, dynamic> _convertToDbMap(dynamic item) {
|
||
if (item is Map<String, dynamic>) {
|
||
return item.map((key, value) {
|
||
if (value is bool) return MapEntry(key, value ? 1 : 0);
|
||
return MapEntry(key, value);
|
||
});
|
||
}
|
||
return {};
|
||
}
|
||
|
||
/// 更新 epub 阅读器的 file_path 和 cover_path
|
||
Map<String, dynamic> _updateEpubPaths(Map<String, dynamic> item, Map<String, String> epubFileMap) {
|
||
if (epubFileMap.isEmpty) return item;
|
||
final newItem = Map<String, dynamic>.from(item);
|
||
|
||
final oldFilePath = item['file_path'] as String?;
|
||
if (oldFilePath != null && oldFilePath.isNotEmpty) {
|
||
final oldRel = _toEpubRelativePath(oldFilePath);
|
||
if (oldRel != null && epubFileMap.containsKey(oldRel)) {
|
||
newItem['file_path'] = epubFileMap[oldRel];
|
||
}
|
||
}
|
||
|
||
final oldCoverPath = item['cover_path'] as String?;
|
||
if (oldCoverPath != null && oldCoverPath.isNotEmpty) {
|
||
final oldRel = _toEpubRelativePath(oldCoverPath);
|
||
if (oldRel != null && epubFileMap.containsKey(oldRel)) {
|
||
newItem['cover_path'] = epubFileMap[oldRel];
|
||
}
|
||
}
|
||
|
||
return newItem;
|
||
}
|
||
|
||
/// 从绝对路径中提取 epub_books/ 下的相对路径
|
||
String? _toEpubRelativePath(String absolutePath) {
|
||
final idx = absolutePath.indexOf('/epub_books/');
|
||
if (idx >= 0) return absolutePath.substring(idx + 13); // skip '/epub_books/'
|
||
final winIdx = absolutePath.indexOf('\\epub_books\\');
|
||
if (winIdx >= 0) return absolutePath.substring(winIdx + 13);
|
||
return null;
|
||
}
|
||
|
||
/// 更新单值图片路径（poster_path / cover_path）
|
||
Map<String, dynamic> _updateImagePath(Map<String, dynamic> item, String pathField, Map<String, String> imagePathMap) {
|
||
final newItem = Map<String, dynamic>.from(item);
|
||
final oldPath = item[pathField] as String?;
|
||
if (oldPath != null && oldPath.isNotEmpty) {
|
||
final relPath = _toRelativePath(oldPath);
|
||
if (imagePathMap.containsKey(relPath)) {
|
||
newItem[pathField] = imagePathMap[relPath];
|
||
}
|
||
}
|
||
return newItem;
|
||
}
|
||
|
||
/// 更新笔记多图路径（images JSON 列表）
|
||
Map<String, dynamic> _updateNoteImagesPath(Map<String, dynamic> item, Map<String, String> imagePathMap) {
|
||
final newItem = Map<String, dynamic>.from(item);
|
||
final imagesJson = item['images'] as String?;
|
||
if (imagesJson == null || imagesJson.isEmpty) return newItem;
|
||
|
||
try {
|
||
final images = jsonDecode(imagesJson) as List<dynamic>;
|
||
final updatedImages = <String>[];
|
||
for (final imagePath in images) {
|
||
if (imagePath is String && imagePath.isNotEmpty) {
|
||
final relPath = _toRelativePath(imagePath);
|
||
updatedImages.add(imagePathMap[relPath] ?? imagePath);
|
||
}
|
||
}
|
||
newItem['images'] = jsonEncode(updatedImages);
|
||
} catch (e) {
|
||
debugPrint('[BackupService] 笔记图片路径更新失败: $e');
|
||
}
|
||
return newItem;
|
||
}
|
||
|
||
String _formatDateTime(DateTime dateTime) {
|
||
return '${dateTime.year}${_pad(dateTime.month)}${_pad(dateTime.day)}_${_pad(dateTime.hour)}${_pad(dateTime.minute)}${_pad(dateTime.second)}';
|
||
}
|
||
|
||
String _pad(int number) => number.toString().padLeft(2, '0');
|
||
}
|
||
|
||
/// 导出中间数据
|
||
class _ExportData {
|
||
final Uint8List zipBytes;
|
||
final int movieCount;
|
||
final int bookCount;
|
||
final int noteCount;
|
||
final int imageCount;
|
||
final int epubCount;
|
||
|
||
_ExportData({
|
||
required this.zipBytes,
|
||
required this.movieCount,
|
||
required this.bookCount,
|
||
required this.noteCount,
|
||
required this.imageCount,
|
||
this.epubCount = 0,
|
||
});
|
||
}
|
||
|
||
// ─── 结果类型 ──────────────────────────────────────────
|
||
|
||
class AutoBackupExportResult {
|
||
final bool success;
|
||
final String? errorMessage;
|
||
final Uint8List? zipBytes;
|
||
final int movieCount;
|
||
final int bookCount;
|
||
final int noteCount;
|
||
final int imageCount;
|
||
final int epubCount;
|
||
|
||
AutoBackupExportResult._({
|
||
required this.success,
|
||
this.errorMessage,
|
||
this.zipBytes,
|
||
this.movieCount = 0,
|
||
this.bookCount = 0,
|
||
this.noteCount = 0,
|
||
this.imageCount = 0,
|
||
this.epubCount = 0,
|
||
});
|
||
|
||
factory AutoBackupExportResult.success({
|
||
required Uint8List zipBytes,
|
||
required int movieCount,
|
||
required int bookCount,
|
||
required int noteCount,
|
||
required int imageCount,
|
||
int epubCount = 0,
|
||
}) {
|
||
return AutoBackupExportResult._(
|
||
success: true, zipBytes: zipBytes,
|
||
movieCount: movieCount, bookCount: bookCount,
|
||
noteCount: noteCount, imageCount: imageCount,
|
||
epubCount: epubCount,
|
||
);
|
||
}
|
||
|
||
factory AutoBackupExportResult.error(String message) {
|
||
return AutoBackupExportResult._(success: false, errorMessage: message);
|
||
}
|
||
}
|
||
|
||
class ExportResult {
|
||
final bool success;
|
||
final bool cancelled;
|
||
final String? errorMessage;
|
||
final String? filePath;
|
||
final int movieCount;
|
||
final int bookCount;
|
||
final int noteCount;
|
||
final int imageCount;
|
||
|
||
ExportResult._({
|
||
required this.success,
|
||
this.cancelled = false,
|
||
this.errorMessage,
|
||
this.filePath,
|
||
this.movieCount = 0,
|
||
this.bookCount = 0,
|
||
this.noteCount = 0,
|
||
this.imageCount = 0,
|
||
});
|
||
|
||
factory ExportResult.success({
|
||
required String filePath,
|
||
required int movieCount,
|
||
required int bookCount,
|
||
required int noteCount,
|
||
required int imageCount,
|
||
}) {
|
||
return ExportResult._(
|
||
success: true, filePath: filePath,
|
||
movieCount: movieCount, bookCount: bookCount,
|
||
noteCount: noteCount, imageCount: imageCount,
|
||
);
|
||
}
|
||
|
||
factory ExportResult.cancelled() {
|
||
return ExportResult._(success: false, cancelled: true);
|
||
}
|
||
|
||
factory ExportResult.error(String message) {
|
||
return ExportResult._(success: false, errorMessage: message);
|
||
}
|
||
}
|
||
|
||
class ImportResult {
|
||
final bool success;
|
||
final bool cancelled;
|
||
final String? errorMessage;
|
||
final Map<String, int>? stats;
|
||
|
||
ImportResult._({
|
||
required this.success,
|
||
this.cancelled = false,
|
||
this.errorMessage,
|
||
this.stats,
|
||
});
|
||
|
||
factory ImportResult.success(Map<String, int> stats) {
|
||
return ImportResult._(success: true, stats: stats);
|
||
}
|
||
|
||
factory ImportResult.cancelled() {
|
||
return ImportResult._(success: false, cancelled: true);
|
||
}
|
||
|
||
factory ImportResult.error(String message) {
|
||
return ImportResult._(success: false, errorMessage: message);
|
||
}
|
||
|
||
String get statsText {
|
||
if (stats == null || stats!.isEmpty) return '没有导入任何数据';
|
||
return stats!.entries.map((e) => '${e.key}: ${e.value}').join('，');
|
||
}
|
||
}
|