1 files changed, 58 insertions, 0 deletions
diff --git a/java/com/android/dialer/preferredsim/suggestion/SuggestionProvider.java b/java/com/android/dialer/preferredsim/suggestion/SuggestionProvider.java
new file mode 100644
index 000000000..61a831b5e
--- /dev/null
+++ b/java/com/android/dialer/preferredsim/suggestion/SuggestionProvider.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.dialer.preferredsim.suggestion;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.support.annotation.WorkerThread;
+import android.telecom.PhoneAccountHandle;
+import com.android.dialer.common.Assert;
+import com.google.common.base.Optional;
+
+/** Provides hints to the user when selecting a SIM to make a call. */
+public interface SuggestionProvider {
+
+  /** The reason the suggestion is made. */
+  enum Reason {
+    UNKNOWN,
+    // The SIM has the same carrier as the callee.
+    INTRA_CARRIER,
+    // The user has selected the SIM for the callee multiple times.
+    FREQUENT
+  }
+
+  /** The suggestion. */
+  class Suggestion {
+    @NonNull public final PhoneAccountHandle phoneAccountHandle;
+    @NonNull public final Reason reason;
+
+    public Suggestion(@NonNull PhoneAccountHandle phoneAccountHandle, @NonNull Reason reason) {
+      this.phoneAccountHandle = Assert.isNotNull(phoneAccountHandle);
+      this.reason = Assert.isNotNull(reason);
+    }
+  }
+
+  @WorkerThread
+  @NonNull
+  Optional<Suggestion> getSuggestion(@NonNull Context context, @NonNull String number);
+
+  @WorkerThread
+  void reportUserSelection(
+      @NonNull Context context,
+      @NonNull String number,
+      @NonNull PhoneAccountHandle phoneAccountHandle);
+}