Bugfix for different ID same URL Apps (#299)

lib/pages/add_app.dart

@@ -118,7 +118,7 @@ class _AddAppPageState extends State<AddAppPage> {
             await settingsProvider.getInstallPermission();
           }
           // Only download the APK here if you need to for the package ID
-          if (sourceProvider.isTempId(app.id) &&
+          if (sourceProvider.isTempId(app) &&
               app.additionalSettings['trackOnly'] != true) {
             // ignore: use_build_context_synchronously
             var apkUrl = await appsProvider.confirmApkUrl(app, context);

lib/pages/app.dart

@@ -113,7 +113,7 @@ class _AppPageState extends State<AppPage> {
       mainAxisAlignment: MainAxisAlignment.center,
       crossAxisAlignment: CrossAxisAlignment.stretch,
       children: [
-        const SizedBox(height: 150),
+        const SizedBox(height: 125),
         app?.installedInfo != null
             ? Row(mainAxisAlignment: MainAxisAlignment.center, children: [
                 Image.memory(
@@ -136,6 +136,14 @@ class _AppPageState extends State<AppPage> {
           textAlign: TextAlign.center,
           style: Theme.of(context).textTheme.headlineMedium,
         ),
+        const SizedBox(
+          height: 8,
+        ),
+        Text(
+          app?.app.id ?? '',
+          textAlign: TextAlign.center,
+          style: Theme.of(context).textTheme.labelSmall,
+        ),
         const SizedBox(
           height: 32,
         ),

lib/providers/apps_provider.dart

@@ -182,7 +182,7 @@ class AppsProvider with ChangeNotifier {
     // The former case should be handled (give the App its real ID), the latter is a security issue
     var newInfo = await PackageArchiveInfo.fromPath(downloadedFile.path);
     if (app.id != newInfo.packageName) {
-      if (apps[app.id] != null && !SourceProvider().isTempId(app.id)) {
+      if (apps[app.id] != null && !SourceProvider().isTempId(app)) {
         throw IDChangedError();
       }
       var originalAppId = app.id;

lib/providers/source_provider.dart

@@ -350,21 +350,12 @@ class SourceProvider {
     return false;
   }
 
-  String generateTempID(AppNames names, AppSource source) =>
-      '${names.author.toLowerCase()}_${names.name.toLowerCase()}_${source.host}';
+  String generateTempID(
+          String standardUrl, Map<String, dynamic> additionalSettings) =>
+      (standardUrl + additionalSettings.toString()).hashCode.toString();
 
-  bool isTempId(String id) {
-    List<String> parts = id.split('_');
-    if (parts.length < 3) {
-      return false;
-    }
-    for (int i = 0; i < parts.length - 1; i++) {
-      if (RegExp('.*[A-Z].*').hasMatch(parts[i])) {
-        // TODO: Look into RegEx for non-Latin characters
-        return false;
-      }
-    }
-    return true;
+  bool isTempId(App app) {
+    return app.id == generateTempID(app.url, app.additionalSettings);
   }
 
   Future<App> getApp(
@@ -400,7 +391,7 @@ class SourceProvider {
         currentApp?.id ??
             source.tryInferringAppId(standardUrl,
                 additionalSettings: additionalSettings) ??
-            generateTempID(apk.names, source),
+            generateTempID(standardUrl, additionalSettings),
         standardUrl,
         apk.names.author[0].toUpperCase() + apk.names.author.substring(1),
         name.trim().isNotEmpty