feat(inappreach): add Gmail storage and account feature support

play-services-api/src/main/aidl/com/google/android/gms/inappreach/internal/IInAppReachService.aidl

@@ -0,0 +1,23 @@
+/*
+ * SPDX-FileCopyrightText: 2026 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.google.android.gms.inappreach.internal;
+
+import com.google.android.gms.common.api.ApiMetadata;
+import com.google.android.gms.common.api.internal.IStatusCallback;
+import com.google.android.gms.inappreach.internal.IOnAccountHealthAlertsListener;
+import com.google.android.gms.inappreach.internal.IOnAccountMessagesListener;
+import com.google.android.gms.inappreach.internal.IOnAccountDataResponseListener;
+
+interface IInAppReachService {
+    void registerAccountHealthAlerts(IStatusCallback callback, String clientPackageName, IOnAccountHealthAlertsListener listener, in ApiMetadata apiMetadata) = 0;
+    void unregisterAccountHealthAlerts(IStatusCallback callback, String clientPackageName, in ApiMetadata apiMetadata) = 1;
+    void registerAccountMessages(IStatusCallback callback, String clientPackageName, IOnAccountMessagesListener listener, in ApiMetadata apiMetadata) = 6;
+    void unregisterAccountMessages(IStatusCallback callback, String clientPackageName, in ApiMetadata apiMetadata) = 7;
+    void registerAccountDataResponse(IStatusCallback callback, String clientPackageName, IOnAccountDataResponseListener listener, in ApiMetadata apiMetadata) = 10;
+    void unregisterAccountDataResponse(IStatusCallback callback, String clientPackageName, in ApiMetadata apiMetadata) = 11;
+    void registerAccountDataResponseV2(IStatusCallback callback, String clientPackageName, IOnAccountDataResponseListener listener, in ApiMetadata apiMetadata) = 14;
+    void unregisterAccountDataResponseV2(IStatusCallback callback, String clientPackageName, in ApiMetadata apiMetadata) = 15;
+}

play-services-api/src/main/aidl/com/google/android/gms/inappreach/internal/IOnAccountDataResponseListener.aidl

@@ -0,0 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2026 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.google.android.gms.inappreach.internal;
+
+interface IOnAccountDataResponseListener {
+    oneway void onAccountDataResponse(in byte[] response) = 0;
+}

play-services-api/src/main/aidl/com/google/android/gms/inappreach/internal/IOnAccountHealthAlertsListener.aidl

@@ -0,0 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2026 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.google.android.gms.inappreach.internal;
+
+interface IOnAccountHealthAlertsListener {
+    oneway void onAccountHealthAlerts(in byte[] response) = 0;
+}

play-services-api/src/main/aidl/com/google/android/gms/inappreach/internal/IOnAccountMessagesListener.aidl

@@ -0,0 +1,10 @@
+/*
+ * SPDX-FileCopyrightText: 2026 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package com.google.android.gms.inappreach.internal;
+
+interface IOnAccountMessagesListener {
+    oneway void onAccountMessages(in byte[] response) = 0;
+}

play-services-core-proto/src/main/proto/inappreach.proto

@@ -0,0 +1,71 @@
+/*
+ * SPDX-FileCopyrightText: 2026 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+syntax = "proto2";
+
+option java_package = "org.microg.gms.inappreach.proto";
+option java_multiple_files = true;
+
+message AccountDataResponse {
+  map<string, AccountData> accounts = 1;
+}
+
+message AccountData {
+  optional string accountName = 1;
+  optional AccountDataPayload payload = 2;
+}
+
+message AccountDataPayload {
+  optional AccountDataMetadata metadata = 1;
+  repeated StorageCard cards = 2;
+}
+
+message AccountDataMetadata {
+  optional int32 type = 1;
+}
+
+message StorageCard {
+  optional string title = 1;
+  optional int32 type = 2;
+  optional StorageProgress progress = 3;
+  optional StorageActions actions = 5;
+  optional StoragePayloadType payloadType = 6;
+  optional int32 style = 7;
+  optional int32 layout = 11;
+  optional int32 emphasis = 15;
+  optional int32 size = 18;
+}
+
+message StorageProgress {
+  optional float fraction = 1;
+  optional string subtitle = 2;
+}
+
+message StorageActions {
+  optional CallToAction primary = 1;
+  optional CallToAction secondary = 2;
+  optional int32 alignment = 3;
+  optional int32 arrangement = 4;
+}
+
+message StoragePayloadType {
+  optional string typeUrl = 1;
+}
+
+message CallToAction {
+  optional string typeUrl = 1;
+  optional CallToActionDetails details = 2;
+}
+
+message CallToActionDetails {
+  optional CallToActionParameters parameters = 3;
+  optional string label = 4;
+  optional int32 enabled = 6;
+}
+
+message CallToActionParameters {
+  optional int32 action = 3;
+  optional int32 source = 4;
+}

play-services-core/src/main/AndroidManifest.xml

@@ -562,6 +562,12 @@
             </intent-filter>
         </service>
 
+        <service android:name="org.microg.gms.inappreach.InAppReachService">
+            <intent-filter>
+                <action android:name="com.google.android.gms.inappreach.service.START" />
+            </intent-filter>
+        </service>
+
         <service android:name="org.microg.gms.auth.appcert.AppCertService">
             <intent-filter>
                 <action android:name="com.google.android.gms.auth.be.appcert.AppCertService" />
@@ -1421,7 +1427,6 @@
                 <action android:name="com.google.android.gms.googlehelp.service.GoogleHelpService.START" />
                 <action android:name="com.google.android.gms.herrevad.services.LightweightNetworkQualityAndroidService.START" />
                 <action android:name="com.google.android.gms.identity.service.BIND" />
-                <action android:name="com.google.android.gms.inappreach.service.START"/>
                 <action android:name="com.google.android.gms.instantapps.START" />
                 <action android:name="com.google.android.gms.kids.service.START" />
                 <action android:name="com.google.android.gms.learning.internal.dynamitesupport.START" />

play-services-core/src/main/kotlin/org/microg/gms/inappreach/InAppReachService.kt

@@ -0,0 +1,35 @@
+/*
+ * SPDX-FileCopyrightText: 2026 microG Project Team
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package org.microg.gms.inappreach
+
+import com.google.android.gms.common.Feature
+import com.google.android.gms.common.api.CommonStatusCodes
+import com.google.android.gms.common.internal.ConnectionInfo
+import com.google.android.gms.common.internal.GetServiceRequest
+import com.google.android.gms.common.internal.IGmsCallbacks
+import org.microg.gms.BaseService
+import org.microg.gms.common.GmsService
+import org.microg.gms.common.PackageUtils
+
+private const val TAG = "InAppReachService"
+private val FEATURES = arrayOf(
+    Feature("account_health_alerts", 1),
+    Feature("account_messages", 1),
+    Feature("account_data_response", 1),
+    Feature("account_data_response_v2", 1)
+)
+
+class InAppReachService : BaseService(TAG, GmsService.INAPP_REACH) {
+    override fun handleServiceRequest(callback: IGmsCallbacks, request: GetServiceRequest, service: GmsService) {
+        val packageName = PackageUtils.getAndCheckCallingPackage(this, request.packageName)
+            ?: throw IllegalArgumentException("Missing package name")
+        callback.onPostInitCompleteWithConnectionInfo(
+            CommonStatusCodes.SUCCESS,
+            InAppReachServiceImpl(this, packageName, lifecycle).asBinder(),
+            ConnectionInfo().apply { features = FEATURES }
+        )
+    }
+}