Ad and purchases enabled (still need actual testing)

android/app/build.gradle.kts

@@ -1,11 +1,24 @@
+import java.io.FileInputStream
+import java.util.Properties
+
 plugins {
     id("com.android.application")
     // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
     id("dev.flutter.flutter-gradle-plugin")
 }
 
+// Release signing credentials — see key.properties (gitignored; the
+// keystore file itself lives outside the repo, at the path it points to).
+// Missing entirely just means a debug-signed release build, same as
+// before, so this doesn't break local dev if key.properties isn't set up.
+val keystoreProperties = Properties()
+val keystorePropertiesFile = rootProject.file("key.properties")
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(FileInputStream(keystorePropertiesFile))
+}
+
 android {
-    namespace = "com.courtneyarnold.fuel_tax_tracker"
+    namespace = "com.ohbrer.show_me_the_fuel_refund"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
 
@@ -15,8 +28,7 @@ android {
     }
 
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId = "com.courtneyarnold.fuel_tax_tracker"
+        applicationId = "com.ohbrer.show_me_the_fuel_refund"
         // You can update the following values to match your application needs.
         // For more information, see: https://flutter.dev/to/review-gradle-config.
         minSdk = flutter.minSdkVersion
@@ -25,11 +37,31 @@ android {
         versionName = flutter.versionName
     }
 
+    signingConfigs {
+        if (keystorePropertiesFile.exists()) {
+            create("release") {
+                keyAlias = keystoreProperties["keyAlias"] as String
+                keyPassword = keystoreProperties["keyPassword"] as String
+                storeFile = file(keystoreProperties["storeFile"] as String)
+                storePassword = keystoreProperties["storePassword"] as String
+            }
+        }
+    }
+
     buildTypes {
         release {
-            // TODO: Add your own signing config for the release build.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig = signingConfigs.getByName("debug")
+            // Real release signing once key.properties exists (see above);
+            // falls back to the debug key otherwise, so `flutter run
+            // --release` still works for local testing without it.
+            signingConfig = if (keystorePropertiesFile.exists()) {
+                signingConfigs.getByName("release")
+            } else {
+                signingConfigs.getByName("debug")
+            }
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
         }
     }
 }

android/app/proguard-rules.pro

@@ -0,0 +1,14 @@
+# google_mlkit_text_recognition's plugin code references all of ML Kit's
+# regional script recognizers (Chinese/Devanagari/Japanese/Korean)
+# generically, even though this app only depends on (and only ever uses)
+# the default Latin recognizer. R8 can't resolve the others since their
+# artifacts genuinely aren't on the classpath — safe to silence, they're
+# never called at runtime here.
+-dontwarn com.google.mlkit.vision.text.chinese.ChineseTextRecognizerOptions$Builder
+-dontwarn com.google.mlkit.vision.text.chinese.ChineseTextRecognizerOptions
+-dontwarn com.google.mlkit.vision.text.devanagari.DevanagariTextRecognizerOptions$Builder
+-dontwarn com.google.mlkit.vision.text.devanagari.DevanagariTextRecognizerOptions
+-dontwarn com.google.mlkit.vision.text.japanese.JapaneseTextRecognizerOptions$Builder
+-dontwarn com.google.mlkit.vision.text.japanese.JapaneseTextRecognizerOptions
+-dontwarn com.google.mlkit.vision.text.korean.KoreanTextRecognizerOptions$Builder
+-dontwarn com.google.mlkit.vision.text.korean.KoreanTextRecognizerOptions

android/app/src/main/AndroidManifest.xml

@@ -48,6 +48,15 @@
                 <data android:scheme="mofueltaxback-onedrive" />
             </intent-filter>
         </activity>
+        <!-- Real AdMob App ID (from your own AdMob console). The ad unit
+             served under it is still Google's official *test* interstitial
+             ID for now (lib/services/ad_service.dart) — that keeps showing
+             real, clearly-labeled test creatives (no revenue) until a real
+             interstitial ad unit ID created under this app is swapped in
+             there too. -->
+        <meta-data
+            android:name="com.google.android.gms.ads.APPLICATION_ID"
+            android:value="ca-app-pub-9212406812117696~6413414381"/>
         <!-- Don't delete the meta-data below.
              This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
         <meta-data

android/app/src/main/kotlin/com/ohbrer/show_me_the_fuel_refund/MainActivity.kt

@@ -1,4 +1,4 @@
-package com.courtneyarnold.fuel_tax_tracker
+package com.ohbrer.show_me_the_fuel_refund
 
 import io.flutter.embedding.android.FlutterActivity