From 6c1845e246b29146b47f9acc3df7565045cb25a2 Mon Sep 17 00:00:00 2001
From: Aunali321 <aunvakil.aa@gmail.com>
Date: Tue, 11 Oct 2022 20:19:50 +0530
Subject: [PATCH] feat: add fallback for cronet.

---
 lib/services/github_api.dart   | 28 +++++++++++++++++-----------
 lib/services/revanced_api.dart | 24 +++++++++++++++---------
 lib/utils/check_for_gms.dart   | 10 ++++++++++
 3 files changed, 42 insertions(+), 20 deletions(-)
 create mode 100644 lib/utils/check_for_gms.dart

diff --git a/lib/services/github_api.dart b/lib/services/github_api.dart
index b38fad42..fbdbbc77 100644
--- a/lib/services/github_api.dart
+++ b/lib/services/github_api.dart
@@ -2,23 +2,16 @@ import 'dart:convert';
 import 'dart:io';
 import 'package:collection/collection.dart';
 import 'package:dio/dio.dart';
-import 'package:dio_brotli_transformer/dio_brotli_transformer.dart';
 import 'package:dio_http_cache_lts/dio_http_cache_lts.dart';
 import 'package:flutter_cache_manager/flutter_cache_manager.dart';
 import 'package:injectable/injectable.dart';
 import 'package:native_dio_client/native_dio_client.dart';
 import 'package:revanced_manager/models/patch.dart';
+import 'package:revanced_manager/utils/check_for_gms.dart';
 
 @lazySingleton
 class GithubAPI {
-  final Dio _dio = Dio(
-    BaseOptions(
-      baseUrl: 'https://api.github.com',
-      headers: {
-        'accept-encoding': 'br',
-      },
-    ),
-  )..httpClientAdapter = NativeAdapter();
+  late Dio _dio = Dio();
   final DioCacheManager _dioCacheManager = DioCacheManager(CacheConfig());
   final Options _cacheOptions = buildCacheOptions(
     const Duration(hours: 6),
@@ -35,9 +28,22 @@ class GithubAPI {
     'com.spotify.music': 'spotify',
   };
 
-  void initialize() {
+  void initialize() async {
+    bool isGMSInstalled = await checkForGMS();
+
+    if (!isGMSInstalled) {
+      _dio = Dio(BaseOptions(
+        baseUrl: 'https://api.github.com',
+      ));
+      print('GitHub API: Using default engine + $isGMSInstalled');
+    } else {
+      _dio = Dio(BaseOptions(
+        baseUrl: 'https://api.github.com',
+      ))
+        ..httpClientAdapter = NativeAdapter();
+      print('ReVanced API: Using CronetEngine + $isGMSInstalled');
+    }
     _dio.interceptors.add(_dioCacheManager.interceptor);
-    _dio.transformer = DioBrotliTransformer(transformer: DefaultTransformer());
   }
 
   Future<void> clearAllCache() async {
diff --git a/lib/services/revanced_api.dart b/lib/services/revanced_api.dart
index dab0cfc6..1eace1db 100644
--- a/lib/services/revanced_api.dart
+++ b/lib/services/revanced_api.dart
@@ -1,12 +1,12 @@
 import 'dart:io';
 import 'package:collection/collection.dart';
-import 'package:dio_brotli_transformer/dio_brotli_transformer.dart';
 import 'package:native_dio_client/native_dio_client.dart';
 import 'package:dio/dio.dart';
 import 'package:dio_http_cache_lts/dio_http_cache_lts.dart';
 import 'package:flutter_cache_manager/flutter_cache_manager.dart';
 import 'package:injectable/injectable.dart';
 import 'package:revanced_manager/models/patch.dart';
+import 'package:revanced_manager/utils/check_for_gms.dart';
 import 'package:timeago/timeago.dart';
 
 @lazySingleton
@@ -19,15 +19,21 @@ class RevancedAPI {
   );
 
   Future<void> initialize(String apiUrl) async {
-    _dio = Dio(BaseOptions(
-      baseUrl: apiUrl,
-      headers: {
-        'accept-encoding': 'br',
-      },
-    ))
-      ..httpClientAdapter = NativeAdapter();
+    bool isGMSInstalled = await checkForGMS();
+
+    if (!isGMSInstalled) {
+      _dio = Dio(BaseOptions(
+        baseUrl: apiUrl,
+      ));
+      print('ReVanced API: Using default engine + $isGMSInstalled');
+    } else {
+      _dio = Dio(BaseOptions(
+        baseUrl: apiUrl,
+      ))
+        ..httpClientAdapter = NativeAdapter();
+      print('ReVanced API: Using CronetEngine + $isGMSInstalled');
+    }
     _dio.interceptors.add(_dioCacheManager.interceptor);
-    _dio.transformer = DioBrotliTransformer(transformer: DefaultTransformer());
   }
 
   Future<void> clearAllCache() async {
diff --git a/lib/utils/check_for_gms.dart b/lib/utils/check_for_gms.dart
new file mode 100644
index 00000000..79474eae
--- /dev/null
+++ b/lib/utils/check_for_gms.dart
@@ -0,0 +1,10 @@
+// Check for google mobile services on device
+
+import 'package:device_apps/device_apps.dart';
+
+Future<bool> checkForGMS() async {
+  bool isGMSInstalled = true;
+  isGMSInstalled = await DeviceApps.isAppInstalled('com.google.android.gms') ||
+      await DeviceApps.isAppInstalled('com.android.vending');
+  return isGMSInstalled;
+}