Add promotion module.

Refactor Duo disclosure card to general promotion card.

Bug: 78905507
Test: unit tests
PiperOrigin-RevId: 197436677
Change-Id: I511c39308cadfb96ee4519b71ca29b75d0e6750b

1 files changed, 67 insertions, 0 deletions

diff --git a/java/com/android/dialer/promotion/PromotionManager.java b/java/com/android/dialer/promotion/PromotionManager.java
new file mode 100644
index 000000000..a86a745ad
--- /dev/null
+++ b/java/com/android/dialer/promotion/PromotionManager.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2018 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.promotion;
+
+import com.android.dialer.promotion.Promotion.PromotionType;
+import com.google.common.collect.ImmutableList;
+import java.util.Optional;
+import javax.inject.Inject;
+
+/**
+ * A class to manage all promotion cards/bottom sheet.
+ *
+ * <p>Only one promotion with highest priority will be shown at a time no matter type. So if there
+ * are one card and one bottom sheet promotion, either one will be shown instead of both.
+ */
+public final class PromotionManager {
+
+  /** Promotion priority order list. Promotions with higher priority must be added first. */
+  private ImmutableList<Promotion> priorityPromotionList;
+
+  @Inject
+  public PromotionManager(ImmutableList<Promotion> priorityPromotionList) {
+    this.priorityPromotionList = priorityPromotionList;
+  }
+
+  /**
+   * Returns promotion should show with highest priority. {@link Optional#empty()} if no promotion
+   * should be shown with given {@link PromotionType}.
+   *
+   * <p>e.g. if FooPromotion(card, high priority) and BarPromotion(bottom sheet, low priority) are
+   * both enabled, getHighestPriorityPromotion(CARD) returns Optional.of(FooPromotion) but
+   * getHighestPriorityPromotion(BOTTOM_SHEET) returns {@link Optional#empty()}.
+   *
+   * <p>Currently it only supports promotion in call log tab.
+   *
+   * <p>TODO(wangqi): add support for other tabs.
+   */
+  @SuppressWarnings("AndroidApiChecker") // Use of optional
+  public Optional<Promotion> getHighestPriorityPromotion(@PromotionType int type) {
+    for (Promotion promotion : priorityPromotionList) {
+      if (promotion.isEligibleToBeShown()) {
+        if (promotion.getType() == type) {
+          return Optional.of(promotion);
+        } else {
+          // Returns empty promotion since it's not the type looking for and only one promotion
+          // should be shown at a time.
+          return Optional.empty();
+        }
+      }
+    }
+    return Optional.empty();
+  }
+}