Settings Screen: Actually save the gitAuthor + email

There is too much code duplication over here, but - meh - I'll clean it
up later.

lib/apis/git_migration.dart

@@ -3,7 +3,7 @@ import 'dart:io';
 
 import 'package:flutter/foundation.dart';
 import 'package:journal/apis/git.dart';
-
+import 'package:journal/settings.dart';
 import 'package:path/path.dart' as p;
 
 //
@@ -34,8 +34,8 @@ Future migrateGitRepo({
     await gitAdd(toGitBasePath, fileName);
     await gitCommit(
       gitFolder: toGitBasePath,
-      authorEmail: "app@gitjournal.io",
-      authorName: "GitJournal",
+      authorEmail: Settings.instance.gitAuthorEmail,
+      authorName: Settings.instance.gitAuthor,
       message: "Migrated Journal Entry",
     );
   }

lib/main.dart

@@ -1,12 +1,12 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
-import 'package:shared_preferences/shared_preferences.dart';
 import 'package:flutter_crashlytics/flutter_crashlytics.dart';
-
-import 'package:journal/app.dart';
-import 'package:journal/state_container.dart';
 import 'package:journal/apis/git.dart';
+import 'package:journal/app.dart';
+import 'package:journal/settings.dart';
+import 'package:journal/state_container.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 
 void main() async {
   bool isInDebugMode = true;
@@ -58,6 +58,8 @@ Future runJournalApp() async {
 
   var dir = await getGitBaseDirectory();
 
+  await Settings.instance.load();
+
   runApp(new StateContainer(
     localGitRepoConfigured: localGitRepoConfigured,
     remoteGitRepoConfigured: remoteGitRepoConfigured,

lib/screens/settings_screen.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:package_info/package_info.dart';
-
 import 'package:journal/app.dart';
+import 'package:journal/settings.dart';
+import 'package:package_info/package_info.dart';
 
 class SettingsScreen extends StatelessWidget {
   @override
@@ -29,10 +29,14 @@ class SettingsList extends StatefulWidget {
 }
 
 class SettingsListState extends State<SettingsList> {
+  final gitAuthorKey = GlobalKey<FormFieldState<String>>();
+  final gitAuthorEmailKey = GlobalKey<FormFieldState<String>>();
+
   @override
   Widget build(BuildContext context) {
     var gitAuthorForm = Form(
       child: TextFormField(
+        key: gitAuthorKey,
         style: Theme.of(context).textTheme.title,
         decoration: const InputDecoration(
           icon: Icon(Icons.person),
@@ -46,14 +50,27 @@ class SettingsListState extends State<SettingsList> {
           }
         },
         textInputAction: TextInputAction.done,
-        onFieldSubmitted: (String _) {},
-        initialValue:
-            JournalApp.preferences.getString("gitAuthor") ?? "GitJournal",
+        onFieldSubmitted: (String gitAuthor) {
+          Settings.instance.gitAuthor = gitAuthor;
+          Settings.instance.save();
+        },
+        onSaved: (String gitAuthor) {
+          Settings.instance.gitAuthor = gitAuthor;
+          Settings.instance.save();
+        },
+        initialValue: Settings.instance.gitAuthor,
       ),
+      onChanged: () {
+        if (!gitAuthorKey.currentState.validate()) return;
+        var gitAuthor = gitAuthorKey.currentState.value;
+        Settings.instance.gitAuthor = gitAuthor;
+        Settings.instance.save();
+      },
     );
 
     var gitAuthorEmailForm = Form(
       child: TextFormField(
+        key: gitAuthorEmailKey,
         style: Theme.of(context).textTheme.title,
         decoration: const InputDecoration(
           icon: Icon(Icons.email),
@@ -65,12 +82,30 @@ class SettingsListState extends State<SettingsList> {
           if (value.isEmpty) {
             return 'Please enter an email';
           }
+
+          bool emailValid =
+              RegExp(r"^[a-zA-Z0-9.]+@[a-zA-Z0-9]+\.[a-zA-Z]+").hasMatch(value);
+          if (!emailValid) {
+            return 'Please enter a valid email';
+          }
         },
         textInputAction: TextInputAction.done,
-        onFieldSubmitted: (String _) {},
-        initialValue: JournalApp.preferences.getString("gitAuthorEmail") ??
-            "app@gitjournal.io",
+        onFieldSubmitted: (String gitAuthorEmail) {
+          Settings.instance.gitAuthorEmail = gitAuthorEmail;
+          Settings.instance.save();
+        },
+        onSaved: (String gitAuthorEmail) {
+          Settings.instance.gitAuthorEmail = gitAuthorEmail;
+          Settings.instance.save();
+        },
+        initialValue: Settings.instance.gitAuthorEmail,
       ),
+      onChanged: () {
+        if (!gitAuthorEmailKey.currentState.validate()) return;
+        var gitAuthorEmail = gitAuthorEmailKey.currentState.value;
+        Settings.instance.gitAuthorEmail = gitAuthorEmail;
+        Settings.instance.save();
+      },
     );
 
     var listView = ListView(children: <Widget>[

lib/settings.dart

@@ -0,0 +1,24 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
+class Settings {
+  // singleton
+  static final Settings _singleton = Settings._internal();
+  factory Settings() => _singleton;
+  Settings._internal();
+  static Settings get instance => _singleton;
+
+  Future load() async {
+    var pref = await SharedPreferences.getInstance();
+    gitAuthor = pref.getString("gitAuthor") ?? gitAuthor;
+    gitAuthorEmail = pref.getString("gitAuthorEmail") ?? gitAuthorEmail;
+  }
+
+  Future save() async {
+    var pref = await SharedPreferences.getInstance();
+    pref.setString("gitAuthor", gitAuthor);
+    pref.setString("gitAuthorEmail", gitAuthorEmail);
+  }
+
+  String gitAuthor = "GitJournal";
+  String gitAuthorEmail = "app@gitjournal.io";
+}

lib/storage/git_storage.dart

@@ -1,17 +1,16 @@
 import 'dart:async';
 
 import 'package:flutter/foundation.dart';
-import 'package:path/path.dart' as p;
-
-import 'package:journal/note.dart';
 import 'package:journal/apis/git.dart';
-import 'package:journal/storage/serializers.dart';
+import 'package:journal/note.dart';
+import 'package:journal/settings.dart';
 import 'package:journal/storage/file_storage.dart';
 import 'package:journal/storage/notes_repository.dart';
+import 'package:journal/storage/serializers.dart';
+import 'package:path/path.dart' as p;
 
 class GitNoteRepository implements NoteRepository {
   final FileStorage _fileStorage;
-  //final String gitCloneUrl = "";
   final String dirName;
 
   bool cloned = false;
@@ -42,8 +41,8 @@ class GitNoteRepository implements NoteRepository {
     await gitAdd(this.dirName, filePath);
     await gitCommit(
       gitFolder: this.dirName,
-      authorEmail: "app@gitjournal.io",
-      authorName: "GitJournal",
+      authorEmail: Settings.instance.gitAuthorEmail,
+      authorName: Settings.instance.gitAuthor,
       message: commitMessage,
     );
 
@@ -64,8 +63,8 @@ class GitNoteRepository implements NoteRepository {
     await gitRm(this.dirName, filePath);
     await gitCommit(
       gitFolder: this.dirName,
-      authorEmail: "app@gitjournal.io",
-      authorName: "GitJournal",
+      authorEmail: Settings.instance.gitAuthorEmail,
+      authorName: Settings.instance.gitAuthor,
       message: "Removed Journal entry",
     );