Add FCM device registration and Gitea bug reporter

android/android/app/build.gradle

@@ -1,14 +1,15 @@
 apply plugin: 'com.android.application'
 
 android {
+    buildFeatures { buildConfig true }
     namespace "de.pinguholic.concerts"
     compileSdk rootProject.ext.compileSdkVersion
     defaultConfig {
         applicationId "de.pinguholic.concerts"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 1
-        versionName "1.0"
+        versionCode 2
+        versionName "1.1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         aaptOptions {
              // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
@@ -17,6 +18,10 @@ android {
         }
     }
     buildTypes {
+        debug {
+            versionNameSuffix '-debug'
+            resValue 'string', 'app_name', 'MetalCircle (Test)'
+        }
         release {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
@@ -36,6 +41,8 @@ dependencies {
     implementation "androidx.coordinatorlayout:coordinatorlayout:$androidxCoordinatorLayoutVersion"
     implementation "androidx.core:core-splashscreen:$coreSplashScreenVersion"
     implementation project(':capacitor-android')
+    // Also used by MetalCircleDevice to await token invalidation at account boundaries.
+    implementation "com.google.firebase:firebase-messaging:$firebaseMessagingVersion"
     testImplementation "junit:junit:$junitVersion"
     androidTestImplementation "androidx.test.ext:junit:$androidxJunitVersion"
     androidTestImplementation "androidx.test.espresso:espresso-core:$androidxEspressoCoreVersion"
@@ -44,11 +51,16 @@ dependencies {
 
 apply from: 'capacitor.build.gradle'
 
-try {
-    def servicesJSON = file('google-services.json')
-    if (servicesJSON.text) {
-        apply plugin: 'com.google.gms.google-services'
-    }
-} catch(Exception e) {
-    logger.info("google-services.json not found, google-services plugin not applied. Push Notifications won't work")
+if (!file('google-services.json').exists()) {
+    throw new GradleException('Add the local Firebase google-services.json to the Android app module before building.')
+}
+apply plugin: 'com.google.gms.google-services'
+
+gradle.taskGraph.whenReady { graph ->
+    if (graph.allTasks.any { it.name.toLowerCase().contains('release') }) {
+        def capacitorConfig = new groovy.json.JsonSlurper().parse(file('src/main/assets/capacitor.config.json'))
+        if (capacitorConfig.server?.cleartext || !capacitorConfig.server?.url?.startsWith('https://')) {
+            throw new GradleException('Release builds require an HTTPS server configuration. Run cap sync without local test mode.')
+        }
+    }
 }

android/android/app/src/debug/AndroidManifest.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- Only debug APKs can load the localhost server reached through adb reverse. -->
+    <application android:usesCleartextTraffic="true" />
+</manifest>

android/android/app/src/main/AndroidManifest.xml

@@ -8,6 +8,9 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
+        <meta-data android:name="firebase_messaging_auto_init_enabled" android:value="false" />
+        <meta-data android:name="firebase_analytics_collection_enabled" android:value="false" />
+        <meta-data android:name="com.google.firebase.messaging.default_notification_icon" android:resource="@drawable/ic_notification" />
 
         <activity
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|smallestScreenSize|screenLayout|uiMode"
@@ -38,4 +41,5 @@
     <!-- Permissions -->
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 </manifest>

android/android/app/src/main/java/de/pinguholic/concerts/MainActivity.java

@@ -1,5 +1,12 @@
 package de.pinguholic.concerts;
 
 import com.getcapacitor.BridgeActivity;
+import android.os.Bundle;
 
-public class MainActivity extends BridgeActivity {}
+public class MainActivity extends BridgeActivity {
+    @Override
+    public void onCreate(Bundle state) {
+        registerPlugin(MetalCircleDevicePlugin.class);
+        super.onCreate(state);
+    }
+}

android/android/app/src/main/java/de/pinguholic/concerts/MetalCircleDevicePlugin.java

@@ -0,0 +1,91 @@
+package de.pinguholic.concerts;
+
+import android.app.AlertDialog;
+import android.app.NotificationManager;
+import android.content.ClipData;
+import android.content.ClipboardManager;
+import android.content.Context;
+import android.content.SharedPreferences;
+import com.getcapacitor.JSObject;
+import com.getcapacitor.Plugin;
+import com.getcapacitor.PluginCall;
+import com.getcapacitor.PluginMethod;
+import com.getcapacitor.annotation.CapacitorPlugin;
+import com.google.firebase.messaging.FirebaseMessaging;
+import java.util.UUID;
+
+@CapacitorPlugin(name = "MetalCircleDevice")
+public class MetalCircleDevicePlugin extends Plugin {
+    private SharedPreferences preferences() {
+        return getContext().getSharedPreferences("metalcircle_push", Context.MODE_PRIVATE);
+    }
+
+    @PluginMethod
+    public void getInfo(PluginCall call) {
+        SharedPreferences prefs = preferences();
+        String id = prefs.getString("device_id", null);
+        if (id == null) {
+            id = UUID.randomUUID().toString();
+            prefs.edit().putString("device_id", id).commit();
+        }
+        JSObject result = new JSObject();
+        result.put("deviceId", id);
+        result.put("appVersion", BuildConfig.VERSION_NAME);
+        result.put("debug", BuildConfig.DEBUG);
+        result.put("binding", prefs.getString("binding", ""));
+        call.resolve(result);
+    }
+
+    @PluginMethod
+    public void prepareSession(PluginCall call) {
+        String binding = call.getString("binding", "");
+        if (!binding.isEmpty() && !binding.matches("[a-f0-9]{64}")) {
+            call.reject("Invalid session binding");
+            return;
+        }
+        if (binding.equals(preferences().getString("binding", ""))) {
+            call.resolve();
+            return;
+        }
+        FirebaseMessaging messaging = FirebaseMessaging.getInstance();
+        messaging.setAutoInitEnabled(false);
+        NotificationManager manager = (NotificationManager) getContext().getSystemService(Context.NOTIFICATION_SERVICE);
+        manager.cancelAll();
+        messaging.deleteToken().addOnCompleteListener(task -> {
+            if (!task.isSuccessful()) {
+                call.reject("Push reset unavailable; please retry");
+                return;
+            }
+            preferences().edit().putString("binding", binding).commit();
+            call.resolve();
+        });
+    }
+
+    @PluginMethod
+    public void showDebugToken(PluginCall call) {
+        // A release APK can never display or copy a registration token through this method.
+        if (!BuildConfig.DEBUG || preferences().getString("binding", "").isEmpty()) {
+            call.reject("Debug token unavailable");
+            return;
+        }
+        boolean english = "en".equals(call.getString("language"));
+        FirebaseMessaging.getInstance().getToken().addOnCompleteListener(task -> {
+            if (!task.isSuccessful()) {
+                call.reject("Push token unavailable");
+                return;
+            }
+            getActivity().runOnUiThread(() -> {
+                new AlertDialog.Builder(getActivity())
+                    .setTitle("FCM token — DEBUG ONLY")
+                    .setMessage(task.getResult())
+                    .setPositiveButton(english ? "Copy" : "Kopieren", (dialog, which) -> {
+                        ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(Context.CLIPBOARD_SERVICE);
+                        clipboard.setPrimaryClip(ClipData.newPlainText("FCM debug token", task.getResult()));
+                    })
+                    .setNegativeButton(english ? "Close" : "Schließen", null)
+                    .show();
+                call.resolve();
+            });
+        });
+    }
+}

android/android/app/src/main/res/drawable/ic_notification.xml

@@ -0,0 +1,4 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp" android:height="24dp" android:viewportWidth="24" android:viewportHeight="24">
+    <path android:fillColor="#FFFFFFFF" android:pathData="M12,2a10,10 0,1 0,0 20a10,10 0,1 0,0 -20M12,5a7,7 0,1 1,0 14a7,7 0,1 1,0 -14M7,8h2l3,4 3,-4h2v8h-2v-5l-3,4 -3,-4v5H7z" />
+</vector>

android/android/variables.gradle

@@ -2,6 +2,8 @@ ext {
     minSdkVersion = 22
     compileSdkVersion = 34
     targetSdkVersion = 34
+    // Capacitor Push Notifications 6.x's supported default (minSdk 22).
+    firebaseMessagingVersion = '23.3.1'
     androidxActivityVersion = '1.8.0'
     androidxAppCompatVersion = '1.6.1'
     androidxCoordinatorLayoutVersion = '1.2.0'
@@ -13,4 +15,4 @@ ext {
     androidxJunitVersion = '1.1.5'
     androidxEspressoCoreVersion = '3.5.1'
     cordovaAndroidVersion = '10.1.1'
-}
+}

android/capacitor.config.ts

@@ -1,12 +1,22 @@
 import type { CapacitorConfig } from '@capacitor/cli';
 
+const serverUrl = process.env.METALCIRCLE_SERVER_URL || 'https://konzerte.pinguholic.de/';
+const localTest = process.env.METALCIRCLE_LOCAL_TEST === '1';
+if (!serverUrl.startsWith('https://') && !(localTest && /^http:\/\/(127\.0\.0\.1|localhost):\d+\/?$/.test(serverUrl))) {
+  throw new Error('MetalCircle requires HTTPS, or explicit localhost test mode.');
+}
+
 const config: CapacitorConfig = {
   appId: 'de.pinguholic.concerts',
   appName: 'MetalCircle',
   webDir: 'www',
+  loggingBehavior: 'none',
+  plugins: {
+    PushNotifications: { presentationOptions: ['sound', 'alert'] }
+  },
   server: {
-    url: 'https://konzerte.pinguholic.de/',
-    cleartext: false
+    url: serverUrl,
+    cleartext: localTest
   }
 };
 

android/package-lock.json

@@ -10,7 +10,7 @@
       "dependencies": {
         "@capacitor/android": "6.2.1",
         "@capacitor/core": "6.2.1",
-        "@capacitor/push-notifications": "^6.0.5"
+        "@capacitor/push-notifications": "6.0.5"
       },
       "devDependencies": {
         "@capacitor/cli": "6.2.1",

android/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "@capacitor/android": "6.2.1",
     "@capacitor/core": "6.2.1",
-    "@capacitor/push-notifications": "^6.0.5"
+    "@capacitor/push-notifications": "6.0.5"
   },
   "devDependencies": {
     "@capacitor/cli": "6.2.1",