changed everything from filcnaplo to refilc finally

refilc/lib/helpers/attachment_helper.dart

@@ -0,0 +1,65 @@
+// ignore_for_file: use_build_context_synchronously
+
+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:refilc/api/providers/user_provider.dart';
+import 'package:refilc/helpers/storage_helper.dart';
+import 'package:refilc_kreta_api/client/client.dart';
+import 'package:refilc_kreta_api/models/attachment.dart';
+import 'package:refilc_kreta_api/models/homework.dart';
+import 'package:flutter/widgets.dart';
+import 'package:open_filex/open_filex.dart';
+import 'package:provider/provider.dart';
+
+extension AttachmentHelper on Attachment {
+  Future<String> download(BuildContext context,
+      {bool overwrite = false}) async {
+    String downloads = await StorageHelper.downloadsPath();
+
+    if (!overwrite && await File("$downloads/$name").exists()) {
+      return "$downloads/$name";
+    }
+
+    Uint8List data = await Provider.of<KretaClient>(context, listen: false)
+        .getAPI(downloadUrl, rawResponse: true);
+    if (!await StorageHelper.write("$downloads/$name", data)) return "";
+
+    return "$downloads/$name";
+  }
+
+  Future<bool> open(BuildContext context) async {
+    String downloads = await StorageHelper.downloadsPath();
+
+    if (!await File("$downloads/$name").exists()) await download(context);
+    var result = await OpenFilex.open("$downloads/$name");
+    return result.type == ResultType.done;
+  }
+}
+
+extension HomeworkAttachmentHelper on HomeworkAttachment {
+  Future<String> download(BuildContext context,
+      {bool overwrite = false}) async {
+    String downloads = await StorageHelper.downloadsPath();
+
+    if (!overwrite && await File("$downloads/$name").exists()) {
+      return "$downloads/$name";
+    }
+
+    String url = downloadUrl(
+        Provider.of<UserProvider>(context, listen: false).instituteCode ?? "");
+    Uint8List data = await Provider.of<KretaClient>(context, listen: false)
+        .getAPI(url, rawResponse: true);
+    if (!await StorageHelper.write("$downloads/$name", data)) return "";
+
+    return "$downloads/$name";
+  }
+
+  Future<bool> open(BuildContext context) async {
+    String downloads = await StorageHelper.downloadsPath();
+
+    if (!await File("$downloads/$name").exists()) await download(context);
+    var result = await OpenFilex.open("$downloads/$name");
+    return result.type == ResultType.done;
+  }
+}