/*
 * Copyright (C) 2014 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.systemui.statusbar.policy;

import android.content.Context;
import android.content.Intent;
import android.telephony.SubscriptionInfo;
import com.android.settingslib.net.DataUsageController;
import com.android.settingslib.wifi.AccessPoint;

import java.util.List;

public interface NetworkController {

    boolean hasMobileDataFeature();
    void addSignalCallback(SignalCallback cb);
    void removeSignalCallback(SignalCallback cb);
    void setWifiEnabled(boolean enabled);
    void onUserSwitched(int newUserId);
    AccessPointController getAccessPointController();
    DataUsageController getMobileDataController();
    DataSaverController getDataSaverController();

    boolean hasVoiceCallingFeature();

    void addEmergencyListener(EmergencyListener listener);
    void removeEmergencyListener(EmergencyListener listener);

    public interface SignalCallback {
        default void setWifiIndicators(boolean enabled, IconState statusIcon, IconState qsIcon,
                boolean activityIn, boolean activityOut, String description) {}

        default void setMobileDataIndicators(IconState statusIcon, IconState qsIcon, int statusType,
                int qsType, boolean activityIn, boolean activityOut, String typeContentDescription,
                String description, boolean isWide, int subId, boolean roaming) {}
        default void setSubs(List<SubscriptionInfo> subs) {}
        default void setNoSims(boolean show) {}

        default void setEthernetIndicators(IconState icon) {}

        default void setIsAirplaneMode(IconState icon) {}

        default void setMobileDataEnabled(boolean enabled) {}
    }

    public interface EmergencyListener {
        void setEmergencyCallsOnly(boolean emergencyOnly);
    }

    public static class IconState {
        public final boolean visible;
        public final int icon;
        public final String contentDescription;

        public IconState(boolean visible, int icon, String contentDescription) {
            this.visible = visible;
            this.icon = icon;
            this.contentDescription = contentDescription;
        }

        public IconState(boolean visible, int icon, int contentDescription,
                Context context) {
            this(visible, icon, context.getString(contentDescription));
        }
    }

    /**
     * Tracks changes in access points.  Allows listening for changes, scanning for new APs,
     * and connecting to new ones.
     */
    public interface AccessPointController {
        void addAccessPointCallback(AccessPointCallback callback);
        void removeAccessPointCallback(AccessPointCallback callback);
        void scanForAccessPoints();
        int getIcon(AccessPoint ap);
        boolean connect(AccessPoint ap);
        boolean canConfigWifi();

        public interface AccessPointCallback {
            void onAccessPointsChanged(List<AccessPoint> accessPoints);
            void onSettingsActivityTriggered(Intent settingsIntent);
        }
    }
}