feat: add support for shared patches (#577)

* fix: avoid npe if a patch has empty compatible package.

* feat: support for shared patches

* fix: incorrect bool check and cleanup

Co-authored-by: Aunali321 <aunvakil.aa@gmail.com>

android/app/src/main/kotlin/app/revanced/manager/flutter/MainActivity.kt

@@ -174,7 +174,7 @@ class MainActivity : FlutterActivity() {
                             javaClass.classLoader
                         )
                     ).loadPatches().filter { patch ->
-                        patch.compatiblePackages!!.any { it.name == patcher.context.packageMetadata.packageName } &&
+                        (patch.compatiblePackages?.any { it.name == patcher.context.packageMetadata.packageName } == true || patch.compatiblePackages.isNullOrEmpty()) &&
                                 selectedPatches.any { it == patch.patchName }
                     }
                 } else {

lib/services/patcher_api.dart

@@ -54,6 +54,25 @@ class PatcherAPI {
 
   Future<List<ApplicationWithIcon>> getFilteredInstalledApps() async {
     List<ApplicationWithIcon> filteredApps = [];
+    bool? allAppsIncluded =
+        _patches.any((patch) => patch.compatiblePackages.isEmpty);
+    if (allAppsIncluded) {
+      var allPackages = await DeviceApps.getInstalledApplications(
+        includeAppIcons: true,
+        onlyAppsWithLaunchIntent: true,
+      );
+      allPackages.forEach((pkg) async {
+        if (!filteredApps.any((app) => app.packageName == pkg.packageName)) {
+          var appInfo = await DeviceApps.getApp(
+            pkg.packageName,
+            true,
+          ) as ApplicationWithIcon?;
+          if (appInfo != null) {
+            filteredApps.add(appInfo);
+          }
+        }
+      });
+    }
     for (Patch patch in _patches) {
       for (Package package in patch.compatiblePackages) {
         try {
@@ -76,11 +95,19 @@ class PatcherAPI {
   }
 
   Future<List<Patch>> getFilteredPatches(String packageName) async {
-    return _patches
-        .where((patch) =>
-            !patch.name.contains('settings') &&
-            patch.compatiblePackages.any((pack) => pack.name == packageName))
-        .toList();
+    List<Patch> filteredPatches = [];
+    _patches.forEach((patch) {
+      if (patch.compatiblePackages.isEmpty) {
+        filteredPatches.add(patch);
+      } else {
+        if (!patch.name.contains('settings') &&
+            patch.compatiblePackages.any((pack) => pack.name == packageName)
+        ) {
+          filteredPatches.add(patch);
+        }
+      }
+    });
+    return filteredPatches;
   }
 
   Future<List<Patch>> getAppliedPatches(List<String> appliedPatches) async {
@@ -229,7 +256,6 @@ class PatcherAPI {
     return false;
   }
 
-
   void exportPatchedFile(String appName, String version) {
     try {
       if (_outFile != null) {
@@ -238,13 +264,12 @@ class PatcherAPI {
         // 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;
+        String newSourcePath =
+            _outFile!.path.substring(0, lastSeparator + 1) + newName;
         _outFile!.copySync(newSourcePath);
 
         CRFileSaver.saveFileWithDialog(SaveFileDialogParams(
-          sourceFilePath: newSourcePath,
-          destinationFileName: newName
-        ));
+            sourceFilePath: newSourcePath, destinationFileName: newName));
       }
     } on Exception catch (e, s) {
       Sentry.captureException(e, stackTrace: s);
@@ -270,7 +295,6 @@ class PatcherAPI {
     String prefix = appName.toLowerCase().replaceAll(' ', '-');
     String newName = '$prefix-revanced_v$version.apk';
     return newName;
-
   }
 
   Future<void> sharePatcherLog(String logs) async {

lib/ui/views/patches_selector/patches_selector_viewmodel.dart

@@ -147,7 +147,7 @@ class PatchesSelectorViewModel extends BaseViewModel {
 
   bool isPatchSupported(Patch patch) {
     PatchedApplication app = locator<PatcherViewModel>().selectedApp!;
-    return patch.compatiblePackages.any((pack) =>
+    return patch.compatiblePackages.isEmpty || patch.compatiblePackages.any((pack) =>
         pack.name == app.packageName &&
         (pack.versions.isEmpty || pack.versions.contains(app.version)));
   }