Add gms.wallet stubs and foss flavor to donations

donations/lib/build.gradle.kts

@@ -5,6 +5,19 @@ plugins {
 
 android {
   namespace = "org.signal.donations"
+
+  flavorDimensions += "license"
+
+  productFlavors {
+    create("gms") {
+      dimension = "license"
+      isDefault = true
+    }
+
+    create("foss") {
+      dimension = "license"
+    }
+  }
 }
 
 dependencies {
@@ -16,6 +29,7 @@ dependencies {
     exclude(group = "com.google.protobuf", module = "protobuf-java")
   }
 
-  api(libs.google.play.services.wallet)
+  "gmsApi"(libs.google.play.services.wallet)
+  "fossApi"(project(":libfakegms"))
   api(libs.square.okhttp3)
 }

donations/lib/src/foss/res/layout/donate_with_googlepay_button.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+</LinearLayout>

libfakegms/src/main/java/com/google/android/gms/common/api/ApiException.java

@@ -0,0 +1,4 @@
+package com.google.android.gms.common.api;
+
+public class ApiException extends Exception {
+}

libfakegms/src/main/java/com/google/android/gms/common/api/Status.java

@@ -1,6 +1,8 @@
 package com.google.android.gms.common.api;
 
 public class Status {
+  public final String statusMessage = "";
+
   public int getStatusCode() {
     return CommonStatusCodes.ERROR;
   }

libfakegms/src/main/java/com/google/android/gms/tasks/Task.java

@@ -9,6 +9,10 @@ public TResult getResult() {
     return null;
   }
 
+  public <X extends Throwable> TResult getResult(Class<X> clazz) throws X {
+    return null;
+  }
+
   public Exception getException() {
     return new UnsupportedOperationException();
   }

libfakegms/src/main/java/com/google/android/gms/wallet/AutoResolveHelper.java

@@ -0,0 +1,18 @@
+package com.google.android.gms.wallet;
+
+import android.app.Activity;
+import android.content.Intent;
+
+import com.google.android.gms.common.api.Status;
+import com.google.android.gms.tasks.Task;
+
+public class AutoResolveHelper {
+  public static final int RESULT_ERROR = 1;
+
+  public static <T> void resolveTask(Task<T> task, Activity activity, int requestCode) {
+  }
+
+  public static Status getStatusFromIntent (Intent data) {
+    return new Status();
+  }
+}

libfakegms/src/main/java/com/google/android/gms/wallet/IsReadyToPayRequest.java

@@ -0,0 +1,7 @@
+package com.google.android.gms.wallet;
+
+public final class IsReadyToPayRequest {
+  public static IsReadyToPayRequest fromJson(String isReadyToPayRequestJson) {
+    return new IsReadyToPayRequest();
+  }
+}

libfakegms/src/main/java/com/google/android/gms/wallet/PaymentData.java

@@ -0,0 +1,13 @@
+package com.google.android.gms.wallet;
+
+import android.content.Intent;
+
+public final class PaymentData {
+  public static PaymentData getFromIntent(Intent intent) {
+    return new PaymentData();
+  }
+
+  public String toJson() {
+    return "{}";
+  }
+}

libfakegms/src/main/java/com/google/android/gms/wallet/PaymentDataRequest.java

@@ -0,0 +1,7 @@
+package com.google.android.gms.wallet;
+
+public final class PaymentDataRequest {
+  public static PaymentDataRequest fromJson(String paymentDataRequestJson) {
+    return new PaymentDataRequest();
+  }
+}

libfakegms/src/main/java/com/google/android/gms/wallet/PaymentsClient.java

@@ -0,0 +1,13 @@
+package com.google.android.gms.wallet;
+
+import com.google.android.gms.tasks.Task;
+
+public class PaymentsClient {
+  public Task<Boolean> isReadyToPay(IsReadyToPayRequest request) {
+    return new Task<>();
+  }
+
+  public Task<PaymentData> loadPaymentData(PaymentDataRequest request) {
+    return new Task<>();
+  }
+}

libfakegms/src/main/java/com/google/android/gms/wallet/Wallet.java

@@ -0,0 +1,21 @@
+package com.google.android.gms.wallet;
+
+import android.content.Context;
+
+public final class Wallet {
+  public static PaymentsClient getPaymentsClient(Context context, WalletOptions options) {
+    return new PaymentsClient();
+  }
+
+  public static final class WalletOptions {
+    public static final class Builder {
+      public Builder setEnvironment(int environment) {
+        return this;
+      }
+
+      public WalletOptions build() {
+        return new WalletOptions();
+      }
+    }
+  }
+}

libfakegms/src/main/java/com/google/android/gms/wallet/WalletConstants.java

@@ -0,0 +1,6 @@
+package com.google.android.gms.wallet;
+
+public final class WalletConstants {
+  public static final int ENVIRONMENT_PRODUCTION = 1;
+  public static final int ENVIRONMENT_TEST       = 3;
+}