From dc47da75f2d4483a540f1ee5713c5594a14250ad Mon Sep 17 00:00:00 2001
From: nkitsaini <74284503+nkitsaini@users.noreply.github.com>
Date: Wed, 2 Nov 2022 17:22:40 +0530
Subject: [PATCH] feat: Adding support for Exporting APK (#439)

* feat: Adding Export APK support

* Using cr_file_saver to simplify export
---
 assets/i18n/en_US.json                        |  1 +
 lib/services/patcher_api.dart                 | 33 +++++++++++++++++--
 lib/ui/views/installer/installer_view.dart    | 11 ++++++-
 .../views/installer/installer_viewmodel.dart  | 11 +++++++
 pubspec.yaml                                  |  1 +
 5 files changed, 54 insertions(+), 3 deletions(-)

diff --git a/assets/i18n/en_US.json b/assets/i18n/en_US.json
index ea0c717a..89718886 100644
--- a/assets/i18n/en_US.json
+++ b/assets/i18n/en_US.json
@@ -96,6 +96,7 @@
         "notificationTitle": "ReVanced Manager is patching",
         "notificationText": "Tap to return to the installer",
         "shareApkMenuOption": "Share APK",
+        "exportApkMenuOption": "Export APK",
         "shareLogMenuOption": "Share log",
         "installErrorDialogTitle": "Error",
         "installErrorDialogText1": "Root install is not possible with the current patches selection.\nRepatch your app or choose non-root install.",
diff --git a/lib/services/patcher_api.dart b/lib/services/patcher_api.dart
index 31ad0cd4..bca0e902 100644
--- a/lib/services/patcher_api.dart
+++ b/lib/services/patcher_api.dart
@@ -12,6 +12,7 @@ import 'package:revanced_manager/services/manager_api.dart';
 import 'package:revanced_manager/services/root_api.dart';
 import 'package:sentry_flutter/sentry_flutter.dart';
 import 'package:share_extend/share_extend.dart';
+import 'package:cr_file_saver/file_saver.dart';
 
 @lazySingleton
 class PatcherAPI {
@@ -228,11 +229,32 @@ class PatcherAPI {
     return false;
   }
 
+
+  void exportPatchedFile(String appName, String version) {
+    try {
+      if (_outFile != null) {
+        String newName = _getFileName(appName, version);
+
+        // This is temporary workaround to populate initial file name
+        // ref: https://github.com/Cleveroad/cr_file_saver/issues/7
+        int lastSeparator = _outFile!.path.lastIndexOf('/');
+        String newSourcePath = _outFile!.path.substring(0, lastSeparator + 1) + newName;
+        _outFile!.copySync(newSourcePath);
+
+        CRFileSaver.saveFileWithDialog(SaveFileDialogParams(
+          sourceFilePath: newSourcePath,
+          destinationFileName: newName
+        ));
+      }
+    } on Exception catch (e, s) {
+      Sentry.captureException(e, stackTrace: s);
+    }
+  }
+
   void sharePatchedFile(String appName, String version) {
     try {
       if (_outFile != null) {
-        String prefix = appName.toLowerCase().replaceAll(' ', '-');
-        String newName = '$prefix-revanced_v$version.apk';
+        String newName = _getFileName(appName, version);
         int lastSeparator = _outFile!.path.lastIndexOf('/');
         String newPath =
             _outFile!.path.substring(0, lastSeparator + 1) + newName;
@@ -244,6 +266,13 @@ class PatcherAPI {
     }
   }
 
+  String _getFileName(String appName, String version) {
+      String prefix = appName.toLowerCase().replaceAll(' ', '-');
+      String newName = '$prefix-revanced_v$version.apk';
+      return newName;
+
+  }
+
   Future<void> sharePatcherLog(String logs) async {
     Directory appCache = await getTemporaryDirectory();
     Directory logDir = Directory('${appCache.path}/logs');
diff --git a/lib/ui/views/installer/installer_view.dart b/lib/ui/views/installer/installer_view.dart
index 7cfcbeb9..e6b5672f 100644
--- a/lib/ui/views/installer/installer_view.dart
+++ b/lib/ui/views/installer/installer_view.dart
@@ -48,7 +48,16 @@ class InstallerView extends StatelessWidget {
                                 ),
                               ),
                             ),
-                          1: I18nText(
+                            1: I18nText(
+                              'installerView.exportApkMenuOption',
+                              child: const Text(
+                                '',
+                                style: TextStyle(
+                                  fontWeight: FontWeight.bold,
+                                ),
+                              ),
+                            ),
+                          2: I18nText(
                             'installerView.shareLogMenuOption',
                             child: const Text(
                               '',
diff --git a/lib/ui/views/installer/installer_viewmodel.dart b/lib/ui/views/installer/installer_viewmodel.dart
index ae9fdc4d..50fa006a 100644
--- a/lib/ui/views/installer/installer_viewmodel.dart
+++ b/lib/ui/views/installer/installer_viewmodel.dart
@@ -217,6 +217,14 @@ class InstallerViewModel extends BaseViewModel {
     }
   }
 
+  void exportResult() {
+    try {
+      _patcherAPI.exportPatchedFile(_app.name, _app.version);
+    } on Exception catch (e, s) {
+      Sentry.captureException(e, stackTrace: s);
+    }
+  }
+
   void shareResult() {
     try {
       _patcherAPI.sharePatchedFile(_app.name, _app.version);
@@ -250,6 +258,9 @@ class InstallerViewModel extends BaseViewModel {
         shareResult();
         break;
       case 1:
+        exportResult();
+        break;
+      case 2:
         shareLog();
         break;
     }
diff --git a/pubspec.yaml b/pubspec.yaml
index 40d84385..a2e37ff0 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -15,6 +15,7 @@ dependencies:
   app_installer: ^1.1.0
   collection: ^1.16.0
   cross_connectivity: ^3.0.5
+  cr_file_saver: ^0.0.1+2
   device_apps:
     git:
       url: https://github.com/ponces/flutter_plugin_device_apps