init

filcnaplo/lib/helpers/attachment_helper.dart

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+import 'dart:io';
+import 'dart:typed_data';
+
+import 'package:filcnaplo/helpers/storage_helper.dart';
+import 'package:filcnaplo_kreta_api/client/client.dart';
+import 'package:filcnaplo_kreta_api/models/attachment.dart';
+import 'package:flutter/widgets.dart';
+import 'package:open_file/open_file.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 OpenFile.open("$downloads/$name");
+    return result.type == ResultType.done;
+  }
+}