Add function to write modlist file

lib/settings.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 
 import 'package:hive/hive.dart';
+import 'package:servermanager/mod.dart';
 import 'package:servermanager/pathtools.dart';
 import 'package:servermanager/settingsEntry.dart';
 
@@ -144,4 +145,31 @@ class Settings {
         .resolve("modlist.txt")
         .build());
   }
+
+  Future<void> writeOutModListFile() async {
+    await createServerModFolderIfNotExists();
+    var file = getModListFile();
+
+    List<String> paths = [];
+    for (Mod mod in inst!.mods) {
+      var pth = PathHelper(pth: getModPath())
+          .resolve("steamapps")
+          .resolve("workshop")
+          .resolve("440900")
+          .resolve("${mod.mod_id}")
+          .resolve("${mod.mod_pak}")
+          .build();
+      //if (Platform.isWindows) {
+      paths.add(pth);
+      //} else {
+      //  var rpl = ["Z:"]; // proton's
+      //  rpl.addAll(pth.split('/'));
+//
+//        paths.add(rpl.join("\\"));
+//      }
+    }
+
+    await file.writeAsString(paths.join("\n"),
+        flush: true, mode: FileMode.writeOnly);
+  }
 }