Merge "Only return one mobile subscription per group in Settings."

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.HashMap;

import java.util.List;

import java.util.Locale;

import java.util.Map;

import java.util.concurrent.Executor;

import java.util.concurrent.TimeUnit;

import java.util.function.Consumer;

        if (availableList == null) {

            return null;

        } else {

            return availableList.stream().filter(subInfo -> !shouldHideSubscription(subInfo))

                    .collect(Collectors.toList());

            // Multiple subscriptions in a group should only have one representative.

            // It should be the current active primary subscription if any, or any

            // primary subscription.

            List<SubscriptionInfo> selectableList = new ArrayList<>();

            Map<String, SubscriptionInfo> groupMap = new HashMap<>();

            for (SubscriptionInfo info : availableList) {

                // Opportunistic subscriptions are considered invisible

                // to users so they should never be returned.

                if (isInvisibleSubscription(info)) continue;

                String groupUuid = info.getGroupUuid();

                if (groupUuid == null) {

                    // Doesn't belong to any group. Add in the list.

                    selectableList.add(info);

                } else if (!groupMap.containsKey(groupUuid)

                        || (groupMap.get(groupUuid).getSimSlotIndex() == INVALID_SIM_SLOT_INDEX

                        && info.getSimSlotIndex() != INVALID_SIM_SLOT_INDEX)) {

                    // If it belongs to a group that has never been recorded or it's the current

                    // active subscription, add it in the list.

                    selectableList.remove(groupMap.get(groupUuid));

                    selectableList.add(info);

                    groupMap.put(groupUuid, info);

                }

            }

            return selectableList;

        }

    }