Add a setting to store the repo in the external storage

This is Android only, and for now it is disabled as I'm not sure why I
cannot access the "general" root directory.

android/app/src/main/AndroidManifest.xml

@@ -5,6 +5,10 @@
     <uses-permission android:name="com.android.vending.BILLING" />
     <uses-feature android:name="android.hardware.camera" android:required="false" />
 
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+
     <application
         android:label="@string/app_name"
         android:icon="@mipmap/launcher_icon">

assets/langs/en.yaml

@@ -134,6 +134,8 @@ settings:
   storage:
     title: Storage
     fileName: Filename
+    useLocal: Store Repo Internally
+    repoLocation: Repo Location
   drawer:
     title: Sidebar Settings
   bottomMenuBar:

lib/features.dart

@@ -3,6 +3,7 @@ import 'package:easy_localization/easy_localization.dart';
 class Features {
   static bool alwaysPro = false;
   static bool perFolderConfig = false;
+  static bool externalStorage = false;
 
   static final all = <Feature>[
     Feature.basicSearch,

lib/screens/settings_screen.dart

@@ -1,7 +1,13 @@
+import 'dart:io';
+
 import 'package:flutter/material.dart';
 
 import 'package:dynamic_theme/dynamic_theme.dart';
 import 'package:easy_localization/easy_localization.dart';
+import 'package:filesystem_picker/filesystem_picker.dart';
+import 'package:path/path.dart' as p;
+import 'package:path_provider/path_provider.dart';
+import 'package:permission_handler/permission_handler.dart';
 import 'package:provider/provider.dart';
 import 'package:url_launcher/url_launcher.dart';
 
@@ -282,6 +288,61 @@ class SettingsListState extends State<SettingsList> {
           Navigator.of(context).push(route);
         },
       ),
+      if (Platform.isAndroid && Features.externalStorage)
+        SwitchListTile(
+          title: Text(tr('settings.storage.useLocal')),
+          value: settings.storeInternally,
+          onChanged: (bool newVal) async {
+            if (newVal == true) {
+              settings.storeInternally = true;
+              settings.storageLocation = "";
+            } else {
+              var req = await Permission.storage.request();
+              if (req.isDenied) {
+                settings.storeInternally = false;
+                settings.storageLocation = "";
+
+                settings.save();
+                setState(() {});
+                return;
+              }
+              settings.storeInternally = true;
+
+              var root = await getExternalStorageDirectory();
+              String path = await FilesystemPicker.open(
+                title: tr('settings.storage.repoLocation'),
+                context: context,
+                rootDirectory: root,
+                fsType: FilesystemType.folder,
+                folderIconColor: Colors.green[500],
+              );
+
+              if (path == null) {
+                settings.storeInternally = false;
+                settings.storageLocation = "";
+                settings.save();
+                setState(() {});
+                return;
+              }
+
+              settings.storageLocation = p.join(path, "GitJournal");
+              settings.storeInternally = false;
+              settings.save();
+              setState(() {});
+              return;
+            }
+            settings.save();
+            setState(() {});
+
+            // FIXME: Move the folder to be stored locally!
+          },
+        ),
+      if (Platform.isAndroid && Features.externalStorage)
+        ListTile(
+          title: Text(tr('settings.storage.repoLocation')),
+          subtitle: Text(settings.storageLocation),
+          enabled: !settings.storeInternally,
+        ),
       ListTile(
         title: Text(tr('settings.misc.title')),
         onTap: () {

lib/settings.dart

@@ -61,6 +61,9 @@ class Settings extends ChangeNotifier {
   String remoteGitRepoFolderName = "";
   bool remoteGitRepoConfigured = false;
 
+  bool storeInternally = true;
+  String storageLocation = "";
+
   void load(SharedPreferences pref) {
     gitAuthor = pref.getString("gitAuthor") ?? gitAuthor;
     gitAuthorEmail = pref.getString("gitAuthorEmail") ?? gitAuthorEmail;
@@ -129,6 +132,8 @@ class Settings extends ChangeNotifier {
     remoteGitRepoFolderName = pref.getString("remoteGitRepoPath") ?? "";
 
     bottomMenuBar = pref.getBool("bottomMenuBar") ?? bottomMenuBar;
+    storeInternally = pref.getBool("storeInternally") ?? storeInternally;
+    storageLocation = pref.getString("storageLocation") ?? "";
   }
 
   Future<void> save() async {
@@ -199,6 +204,10 @@ class Settings extends ChangeNotifier {
     _setStringSet(pref, "inlineTagPrefixes", inlineTagPrefixes,
         defaultSet.inlineTagPrefixes);
     _setBool(pref, "bottomMenuBar", bottomMenuBar, defaultSet.bottomMenuBar);
+    _setBool(
+        pref, "storeInternally", storeInternally, defaultSet.storeInternally);
+    _setString(
+        pref, "storageLocation", storageLocation, defaultSet.storageLocation);
 
     pref.setInt("settingsVersion", version);
 
@@ -287,6 +296,8 @@ class Settings extends ChangeNotifier {
       'localGitRepoFolderName': localGitRepoFolderName.toString(),
       'remoteGitRepoFolderName': remoteGitRepoFolderName.toString(),
       'bottomMenuBar': bottomMenuBar.toString(),
+      'storeInternally': storeInternally.toString(),
+      'storageLocation': storageLocation,
     };
   }
 

pubspec.lock

@@ -248,6 +248,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "2.0.7"
+  filesystem_picker:
+    dependency: "direct main"
+    description:
+      name: filesystem_picker
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.3"
   fimber:
     dependency: "direct main"
     description:
@@ -686,6 +693,20 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.10.0-nullsafety.1"
+  permission_handler:
+    dependency: "direct main"
+    description:
+      name: permission_handler
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "5.0.1+1"
+  permission_handler_platform_interface:
+    dependency: transitive
+    description:
+      name: permission_handler_platform_interface
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.1"
   petitparser:
     dependency: transitive
     description:

pubspec.yaml

@@ -59,6 +59,8 @@ dependencies:
   multicast_dns: ^0.2.2
   bonsoir: ^0.1.2+2
   file_picker: ^2.0.7
+  filesystem_picker: ^1.0.3 # for directories
+  permission_handler: ^5.0.1+1
 
 dev_dependencies:
   flutter_launcher_icons: "^0.7.2"