add download service

lib/services/download_service.dart

@@ -0,0 +1,45 @@
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+import 'package:odin/services/locator.dart';
+import 'package:odin/services/logger.dart';
+import 'package:odin/services/random_service.dart';
+import 'package:path_provider/path_provider.dart';
+
+class DownloadService {
+  final RandomService _randomService = locator<RandomService>();
+  String progress = '0%';
+  bool downloading = false;
+
+  Dio dio = Dio();
+  Future<String> _getFilePath() async {
+    final fileName = _randomService.getRandomString(10);
+    Directory? dir;
+    if (Platform.isAndroid) {
+      dir = await getExternalStorageDirectory();
+    } else if (Platform.isIOS) {
+      dir = await getTemporaryDirectory();
+    } else {
+      dir = await getDownloadsDirectory();
+    }
+    String path = '${dir?.path}/$fileName.odin';
+    logger.d("File path : $path");
+    return path;
+  }
+
+  Future<File> downloadFile(String url) async {
+    final filePath = await _getFilePath();
+    progress = '0%';
+    downloading = true;
+    await dio.download(
+      url,
+      filePath,
+      onReceiveProgress: (rcv, total) {
+        progress = ((rcv / total) * 100).toStringAsFixed(0) + "%";
+      },
+      deleteOnError: true,
+    );
+    downloading = false;
+    return File(filePath);
+  }
+}

lib/services/locator.dart

@@ -1,4 +1,5 @@
 import 'package:get_it/get_it.dart';
+import 'package:odin/services/download_service.dart';
 import 'package:odin/services/encryption_service.dart';
 import 'package:odin/services/file_service.dart';
 import 'package:odin/services/github_service.dart';
@@ -23,6 +24,7 @@ void setupLocator() {
   locator.registerLazySingleton<ToastService>(() => ToastService());
   locator.registerLazySingleton<PreferencesService>(() => PreferencesService());
   locator.registerLazySingleton<EncryptionService>(() => EncryptionService());
+  locator.registerLazySingleton<DownloadService>(() => DownloadService());
   logger.d('Locator setup in ${stopwatch.elapsed}');
   stopwatch.stop();
 }