Final version

common/lib/src/model/archive.dart

@@ -0,0 +1,18 @@
+import 'dart:io';
+import 'dart:isolate';
+
+class ArchiveDownloadProgress {
+  final double progress;
+  final int? minutesLeft;
+  final bool extracting;
+
+  ArchiveDownloadProgress(this.progress, this.minutesLeft, this.extracting);
+}
+
+class ArchiveDownloadOptions {
+  String archiveUrl;
+  Directory destination;
+  SendPort port;
+
+  ArchiveDownloadOptions(this.archiveUrl, this.destination, this.port);
+}