Analytics: Move firebase lab detection into analytics package

This way the app.dart file has minimal logic.

lib/analytics/analytics.dart

@@ -1,4 +1,7 @@
+import 'package:flutter/foundation.dart' as foundation;
+
 import 'package:fixnum/fixnum.dart';
+import 'package:flutter_runtime_env/flutter_runtime_env.dart';
 import 'package:function_types/function_types.dart';
 import 'package:package_info_plus/package_info_plus.dart';
 import 'package:shared_preferences/shared_preferences.dart';
@@ -15,11 +18,8 @@ import 'storage.dart';
 
 export 'events.dart';
 
-const defaultAnalyticsEnabled = true;
-
 class Analytics {
-  bool enabled = defaultAnalyticsEnabled;
-  bool collectUsageStatistics = defaultAnalyticsEnabled;
+  late bool enabled;
 
   final Func2<String, Map<String, String>, void> analyticsCallback;
   final AnalyticsStorage storage;
@@ -32,57 +32,48 @@ class Analytics {
     required this.enabled,
     required this.pref,
     required this.pseudoId,
-  }) : config = AnalyticsConfig("", pref) {
-    collectUsageStatistics =
-        pref.getBool("collectUsageStatistics") ?? collectUsageStatistics;
-
+    required this.config,
+  }) {
     _sessionId = DateTime.now().millisecondsSinceEpoch.toRadixString(16);
   }
 
   static Analytics? _global;
-  static Analytics init({
-    required bool enable,
+  static Future<Analytics> init({
     required SharedPreferences pref,
     required Func2<String, Map<String, String>, void> analyticsCallback,
     required String storagePath,
-  }) {
+  }) async {
+    bool inFireBaseTestLab = await inFirebaseTestLab();
+    bool canBeEnabled = !foundation.kDebugMode && !inFireBaseTestLab;
+
     var pseudoId = pref.getString("pseudoId");
     if (pseudoId == null) {
       pseudoId = const Uuid().v4();
       pref.setString("pseudoId", pseudoId);
     }
 
+    var config = AnalyticsConfig("", pref);
+    config.load(pref);
+
+    var enabled = canBeEnabled && config.enabled;
+
     _global = Analytics._(
       analyticsCallback: analyticsCallback,
       storage: AnalyticsStorage(storagePath),
-      enabled: enable,
+      enabled: enabled,
       pseudoId: pseudoId,
       pref: pref,
+      config: config,
     );
 
+    Log.d("Analytics Collection: $enabled");
+    Log.d("Analytics Storage: $storagePath");
+
     _global!._sendAppUpdateEvent();
 
     return _global!;
   }
 
-  Future<void> save() async {
-    _setBool(pref, "collectUsageStatistics", collectUsageStatistics,
-        defaultAnalyticsEnabled);
-  }
-
-  Future<void> _setBool(
-    SharedPreferences pref,
-    String key,
-    bool value,
-    bool defaultValue,
-  ) async {
-    if (value == defaultValue) {
-      await pref.remove(key);
-    } else {
-      await pref.setBool(key, value);
-    }
-  }
-
   static Analytics? get instance => _global;
 
   late String _sessionId;

lib/analytics/config.dart

@@ -14,22 +14,18 @@ class AnalyticsConfig extends ChangeNotifier with SettingsSharedPref {
   final SharedPreferences pref;
 
   var appVersion = "";
+  var enabled = true;
 
   void load(SharedPreferences pref) {
     appVersion = pref.getString("appVersion") ?? "";
+
+    enabled = pref.getBool("collectUsageStatistics") ?? enabled;
   }
 
   Future<void> save() async {
-    // var def = AnalyticsConfig(id, pref);
+    var def = AnalyticsConfig(id, pref);
 
-    pref.setString("appVersion", appVersion);
+    await setBool("collectUsageStatistics", enabled, def.enabled);
+    await pref.setString("appVersion", appVersion);
   }
 }
-
-
-// TODO
-// 1. Config
-// 2. Move all the logic from app to here (firebase)
-// 3. Move the controlling logic over here
-// 4. Backend stuff
-// 5. Simple event log - UI

lib/app.dart

@@ -1,11 +1,9 @@
 import 'dart:async';
 
-import 'package:flutter/foundation.dart' as foundation;
 import 'package:flutter/material.dart';
 
 import 'package:easy_localization/easy_localization.dart';
 import 'package:easy_localization_loader/easy_localization_loader.dart';
-import 'package:flutter_runtime_env/flutter_runtime_env.dart';
 import 'package:path/path.dart' as p;
 import 'package:path_provider/path_provider.dart';
 import 'package:provider/provider.dart';
@@ -99,17 +97,11 @@ class JournalApp extends StatefulWidget {
     AppSettings appSettings,
     SharedPreferences pref,
   ) async {
-    bool inFireBaseTestLab = await inFirebaseTestLab();
-    bool enabled = !foundation.kDebugMode && !inFireBaseTestLab;
-
     var supportDir = await getApplicationSupportDirectory();
     var analyticsStorage = p.join(supportDir.path, 'analytics');
     await Directory(analyticsStorage).create(recursive: true);
 
-    Log.d("Analytics Collection: $enabled");
-    Log.d("Analytics Storage: $analyticsStorage");
-    var analytics = Analytics.init(
-      enable: enabled,
+    var analytics = await Analytics.init(
       pref: pref,
       analyticsCallback: captureErrorBreadcrumb,
       storagePath: analyticsStorage,

lib/settings/settings_screen.dart

@@ -466,11 +466,11 @@ class SettingsListState extends State<SettingsList> {
       if (Analytics.instance != null)
         SwitchListTile(
           title: Text(tr('settings.usageStats')),
-          value: Analytics.instance!.collectUsageStatistics,
+          value: Analytics.instance!.config.enabled,
           onChanged: (bool val) {
-            Analytics.instance!.collectUsageStatistics = val;
-            Analytics.instance!.save();
-            setState(() {});
+            Analytics.instance!.config.enabled = val;
+            Analytics.instance!.config.save();
+            setState(() {}); // Remove this once Analytics.instace is not used
 
             // FIXME: This also should go in the ananlytics package
             logEvent(