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/*
* 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.
*/
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();
}
}
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