use proper logging

cyberwow/lib/config.dart

@@ -19,9 +19,13 @@ along with CyberWOW.  If not, see <https://www.gnu.org/licenses/>.
 
 */
 
+import 'package:logging/logging.dart';
+
 import 'config/prototype.dart';
 import 'config/cyberwow.dart' as cryptoConfig;
 
+final Logger log = new Logger('Default');
+
 const config = cryptoConfig.config;
 
 const arch = 'arm64';
@@ -29,3 +33,4 @@ const arch = 'arm64';
 const minimumHeight = 118361;
 
 const isPC = arch == 'x86_64';
+

cyberwow/lib/controller/syncing.dart

@@ -56,7 +56,7 @@ Stream<String> runBinary (String name) async* {
     "--non-interactive",
   ] + extraArgs + config.extraArgs;
 
-  print('args: ' + args.toString());
+  log.info('args: ' + args.toString());
 
   final outputProcess = await Process.start(newPath, args);
   await for (var line in outputProcess.stdout.transform(utf8.decoder)) {
@@ -64,5 +64,6 @@ Stream<String> runBinary (String name) async* {
   }
 
   // the app should never reach here
+  log.severe('Daemon is gone!');
   exit(1);
 }

cyberwow/lib/main.dart

@@ -21,6 +21,8 @@ along with CyberWOW.  If not, see <https://www.gnu.org/licenses/>.
 
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:flutter/foundation.dart';
+import 'package:logging/logging.dart';
 
 import 'dart:io';
 import 'dart:async';
@@ -35,9 +37,15 @@ import 'widget/syncing.dart';
 import 'widget/synced.dart';
 import 'widget/resyncing.dart';
 
-void main() => runApp(MyApp());
+void main() {
+  Logger.root.level = kReleaseMode ? Level.INFO : Level.ALL;
+  Logger.root.onRecord.listen((LogRecord rec) {
+      print('${rec.level.name}: ${rec.time}: ${rec.message}');
+  });
+  runApp(CyberWOW_App());
+}
 
-class MyApp extends StatelessWidget {
+class CyberWOW_App extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return MaterialApp
@@ -47,20 +55,20 @@ class MyApp extends StatelessWidget {
       (
         primarySwatch: Colors.purple,
       ),
-      home: MyHomePage(title: 'CyberWOW'),
+      home: CyberWOW_Page(title: 'CyberWOW'),
     );
   }
 }
 
-class MyHomePage extends StatefulWidget {
-  MyHomePage({Key key, this.title}) : super(key: key);
+class CyberWOW_Page extends StatefulWidget {
+  CyberWOW_Page({Key key, this.title}) : super(key: key);
   final String title;
 
   @override
-  _MyHomePageState createState() => _MyHomePageState();
+  _CyberWOW_PageState createState() => _CyberWOW_PageState();
 }
 
-class _MyHomePageState extends State<MyHomePage> with WidgetsBindingObserver
+class _CyberWOW_PageState extends State<CyberWOW_Page> with WidgetsBindingObserver
 {
   int _counter = 0;
   // AppState _state = LoadingState("init...");
@@ -70,7 +78,7 @@ class _MyHomePageState extends State<MyHomePage> with WidgetsBindingObserver
 
   @override
   void didChangeAppLifecycleState(AppLifecycleState state) {
-    // print('app cycle: ${state}');
+    log.fine('app cycle: ${state}');
     setState(() { _notification = state; });
   }
 
@@ -97,7 +105,7 @@ class _MyHomePageState extends State<MyHomePage> with WidgetsBindingObserver
 
 
   void _updateLoading(LoadingState state, String msg) {
-    print('updateLoading: ' + msg);
+    log.fine('updateLoading: ' + msg);
   }
 
   Future<void> buildStateMachine(BlankState _blankState) async {
@@ -132,7 +140,7 @@ class _MyHomePageState extends State<MyHomePage> with WidgetsBindingObserver
   @override
   void initState() {
     super.initState();
-    print("MyHomePageState initState");
+    log.fine("CyberWOW_PageState initState");
 
     WidgetsBinding.instance.addObserver(this);
 
@@ -145,7 +153,7 @@ class _MyHomePageState extends State<MyHomePage> with WidgetsBindingObserver
   }
 
   Future<bool> _exitApp(BuildContext context) async {
-    print("MyHomePageState _exitApp");
+    log.info("CyberWOW_PageState _exitApp");
     WidgetsBinding.instance.removeObserver(this);
     exit(0);
   }

cyberwow/lib/state.dart

@@ -112,10 +112,10 @@ class LoadingState extends HookedState {
     }
 
     Future<void> load() async {
-      print("Loading next");
+      log.fine("Loading next");
       await for (var line in loadingProgress) {
         // append(line);
-        print(line);
+        log.info(line);
       }
     }
 
@@ -145,7 +145,7 @@ class SyncingState extends HookedState {
   }
 
   Future<SyncedState> next(Stream<String> processOutput) async {
-    print("Syncing next");
+    log.fine("Syncing next");
 
     Future<void> printStdout() async {
       await for (var line in processOutput) {
@@ -155,7 +155,7 @@ class SyncingState extends HookedState {
 
 
         append(line);
-        print(line);
+        log.info(line);
       }
     }
 
@@ -180,7 +180,7 @@ class SyncingState extends HookedState {
     printStdout();
     await checkSync();
 
-    print('syncing: loop exit');
+    log.fine('syncing: loop exit');
 
     final _height = await rpc.height();
     SyncedState _next = SyncedState(setState, getNotification, stdout, processOutput);
@@ -200,14 +200,14 @@ class SyncedState extends HookedState {
   SyncedState(f, s, this.stdout, this.processOutput) : super (f, s);
 
   Future<ReSyncingState> next() async {
-    print("Synced next");
+    log.fine("Synced next");
 
     Future<void> logStdout() async {
       await for (var line in processOutput) {
         if (!synced) break;
         // print('synced: print stdout loop');
         stdout += line;
-        print(line);
+        log.info(line);
       }
     }
 
@@ -228,7 +228,7 @@ class SyncedState extends HookedState {
 
     await checkSync();
 
-    print('synced: loop exit');
+    log.fine('synced: loop exit');
 
     ReSyncingState _next = ReSyncingState(setState, getNotification, stdout, processOutput);
     setState(_next);
@@ -250,14 +250,14 @@ class ReSyncingState extends HookedState {
   }
 
   Future<SyncedState> next() async {
-    print("ReSyncing next");
+    log.fine("ReSyncing next");
 
     Future<void> printStdout() async {
       await for (var line in processOutput) {
         if (synced) break;
         // print('re-syncing: print stdout loop');
         append(line);
-        print(line);
+        log.info(line);
       }
     }
 
@@ -275,7 +275,7 @@ class ReSyncingState extends HookedState {
     printStdout();
     await checkSync();
 
-    print('resync: await exit');
+    log.fine('resync: await exit');
     SyncedState _next = SyncedState(setState, getNotification, stdout, processOutput);
     _next.height = await rpc.height();
     setState(_next);

cyberwow/pubspec.lock

@@ -1,5 +1,5 @@
 # Generated by pub
-# See https://www.dartlang.org/tools/pub/glossary#lockfile
+# See https://dart.dev/tools/pub/glossary#lockfile
 packages:
   async:
     dependency: transitive
@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.1.0"
+    version: "2.2.0"
   boolean_selector:
     dependency: transitive
     description:
@@ -60,6 +60,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "3.1.3"
+  logging:
+    dependency: "direct main"
+    description:
+      name: logging
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.11.3+2"
   matcher:
     dependency: transitive
     description:
@@ -94,14 +101,14 @@ packages:
       name: pedantic
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "1.5.0"
+    version: "1.7.0"
   quiver:
     dependency: transitive
     description:
       name: quiver
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.0.2"
+    version: "2.0.3"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -148,7 +155,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.2.4"
+    version: "0.2.5"
   typed_data:
     dependency: transitive
     description:
@@ -164,5 +171,5 @@ packages:
     source: hosted
     version: "2.0.8"
 sdks:
-  dart: ">=2.2.0 <3.0.0"
+  dart: ">=2.2.2 <3.0.0"
   flutter: ">=0.1.4 <2.0.0"

cyberwow/pubspec.yaml

@@ -25,6 +25,7 @@ dependencies:
   cupertino_icons: ^0.1.2
   path_provider: ^1.1.0
   http: ^0.12.0
+  logging: ^0.11.3
 
 dev_dependencies:
   flutter_test: