opt.: backup

lib/data/model/app/backup.dart

@@ -1,6 +1,21 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:logging/logging.dart';
 import 'package:toolbox/data/model/server/private_key_info.dart';
 import 'package:toolbox/data/model/server/server_private_info.dart';
 import 'package:toolbox/data/model/server/snippet.dart';
+import 'package:toolbox/data/res/path.dart';
+import 'package:toolbox/data/store/docker.dart';
+import 'package:toolbox/data/store/private_key.dart';
+import 'package:toolbox/data/store/server.dart';
+import 'package:toolbox/data/store/setting.dart';
+import 'package:toolbox/data/store/snippet.dart';
+import 'package:toolbox/locator.dart';
+
+const backupFormatVersion = 1;
+
+final _logger = Logger('Backup');
 
 class Backup {
   // backup format version
@@ -45,4 +60,63 @@ class Backup {
         'dockerHosts': dockerHosts,
         'settings': settings,
       };
+
+  Backup.loadFromStore()
+      : version = backupFormatVersion,
+        date = DateTime.now().toString().split('.').first,
+        spis = _server.fetch(),
+        snippets = _snippet.fetch(),
+        keys = _privateKey.fetch(),
+        dockerHosts = _dockerHosts.fetchAll(),
+        settings = _setting.toJson();
+
+  static Future<void> backup() async {
+    final result = _diyEncrtpt(json.encode(Backup.loadFromStore()));
+    await File(await backupPath).writeAsString(result);
+  }
+
+  Future<void> restore() async {
+    for (final s in snippets) {
+      _snippet.put(s);
+    }
+    for (final s in spis) {
+      _server.put(s);
+    }
+    for (final s in keys) {
+      _privateKey.put(s);
+    }
+    for (final k in dockerHosts.keys) {
+      final val = dockerHosts[k];
+      if (val != null && val is String && val.isNotEmpty) {
+        _dockerHosts.put(k, val);
+      }
+    }
+  }
+
+  Backup.fromJsonString(String raw)
+      : this.fromJson(json.decode(_diyDecrypt(raw)));
+}
+
+final _server = locator<ServerStore>();
+final _snippet = locator<SnippetStore>();
+final _privateKey = locator<PrivateKeyStore>();
+final _dockerHosts = locator<DockerStore>();
+final _setting = locator<SettingStore>();
+
+String _diyEncrtpt(String raw) => json.encode(
+      raw.codeUnits.map((e) => e * 2 + 1).toList(growable: false),
+    );
+
+String _diyDecrypt(String raw) {
+  try {
+    final list = json.decode(raw);
+    final sb = StringBuffer();
+    for (final e in list) {
+      sb.writeCharCode((e - 1) ~/ 2);
+    }
+    return sb.toString();
+  } catch (e, trace) {
+    _logger.warning('Decrypt failed', e, trace);
+    rethrow;
+  }
 }

lib/data/model/server/proc.dart

@@ -144,7 +144,7 @@ class PsResult {
         procs.add(Proc.parse(line, map));
       } catch (e, trace) {
         errs.add('$line: $e');
-        _logger.warning(trace);
+        _logger.warning('Parse process failed', e, trace);
       }
     }