voyagehandbook/lib/util/storage.dart
2023-03-27 19:45:57 +02:00

57 lines
1.8 KiB
Dart

import 'dart:convert';
import 'dart:io';
import 'package:path_provider/path_provider.dart';
/// Used to ease up accessing local files
class StorageAccess {
/// Get files in `recent` folder, which contains recently opened pages
static Future<List<Map<String, dynamic>>> get recent async {
var files =
Directory("${(await getApplicationDocumentsDirectory()).path}/recent");
if (!files.existsSync()) files.createSync();
return files
.listSync()
.whereType<File>()
.toList()
.map<Map<String, dynamic>>((e) => jsonDecode(e.readAsStringSync()))
.toList();
}
static void addToRecents(String pageName, String pageKey) async {
var files =
Directory("${(await getApplicationDocumentsDirectory()).path}/recent");
if (!files.existsSync()) files.createSync();
var content = files.listSync();
if (content.length > 4) {
// delete last recent
// TODO: configurable
File? f;
for (var file in content) {
if (file is Directory) continue;
var modi = (await file.stat()).modified;
if (f == null || (await f.stat()).modified.isAfter(modi)) {
f = file as File;
}
}
f!.deleteSync();
}
var recent = File("${files.path}/${pageName.replaceAll(' ', '_')}");
if (recent.existsSync()) {
// if recent already exists, simply change date
var recentContent = jsonDecode(recent.readAsStringSync());
recentContent["date"] = DateTime.now().millisecondsSinceEpoch;
recent.writeAsStringSync(jsonEncode(recentContent));
} else {
// else create files
var recentContent = {
"date": DateTime.now().millisecondsSinceEpoch,
"name": pageName,
"key": pageKey
};
recent.writeAsStringSync(jsonEncode(recentContent));
}
}
}