3.6

lib/src/util/os.dart

@@ -1,5 +1,10 @@
 import 'dart:io';
 
+import 'package:flutter_desktop_folder_picker/flutter_desktop_folder_picker.dart';
+import 'package:path/path.dart' as path;
+
+File errorFile = File("${Platform.environment["Temp"]}/error.txt");
+
 const int appBarSize = 2;
 final RegExp _regex = RegExp(r'(?<=\(Build )(.*)(?=\))');
 
@@ -11,4 +16,31 @@ bool get isWin11 {
 
   var intBuild = int.tryParse(result);
   return intBuild != null && intBuild > 22000;
+}
+
+Future<String?> openFilePicker(String title) async =>
+    FlutterDesktopFolderPicker.openFolderPickerDialog(title: title);
+
+Future<List<Directory>> scanInstallations(String input) => Directory(input)
+    .list(recursive: true)
+    .handleError((_) {}, test: (e) => e is FileSystemException)
+    .where((element) => path.basename(element.path) == "FortniteClient-Win64-Shipping.exe")
+    .map((element) => findContainer(File(element.path)))
+    .where((element) => element != null)
+    .map((element) => element!)
+    .toList();
+
+Directory? findContainer(File file){
+  var last = file.parent;
+  for(var x = 0; x < 5; x++){
+    var name = path.basename(last.path);
+    if(name != "FortniteGame" || name == "Fortnite"){
+      last = last.parent;
+      continue;
+    }
+
+    return last.parent;
+  }
+
+  return null;
 }