/*
 * Copyright (C) 2021 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.car.settings.qc;

import static com.android.car.datasubscription.DataSubscription.DATA_SUBSCRIPTION_ACTION;
import static com.android.car.qc.QCItem.QC_ACTION_TOGGLE_STATE;
import static com.android.car.qc.QCItem.QC_TYPE_ACTION_SWITCH;
import static com.android.car.settings.qc.QCUtils.getActionDisabledDialogIntent;
import static com.android.car.settings.qc.QCUtils.getAvailabilityStatusForZoneFromXml;
import static com.android.car.settings.qc.SettingsQCRegistry.MOBILE_DATA_ROW_URI;

import android.app.PendingIntent;
import android.car.drivingstate.CarUxRestrictions;
import android.content.Context;
import android.content.Intent;
import android.graphics.drawable.Icon;
import android.net.Uri;
import android.os.UserManager;

import androidx.annotation.VisibleForTesting;

import com.android.car.datasubscription.DataSubscription;
import com.android.car.qc.QCActionItem;
import com.android.car.qc.QCCategory;
import com.android.car.qc.QCItem;
import com.android.car.qc.QCList;
import com.android.car.qc.QCRow;
import com.android.car.settings.R;
import com.android.car.settings.enterprise.EnterpriseUtils;
import com.android.settingslib.net.DataUsageController;

/**
 * QCItem for showing a mobile data row element.
 * The row contains a data icon, the current default network name, and a switch
 * to enable/disable mobile data.
 */
public class MobileDataRow extends SettingsQCItem {
    private final DataUsageController mDataUsageController;
    private boolean mIsDistractionOptimizationRequired;
    private DataSubscription mSubscription;

    public MobileDataRow(Context context) {
        super(context);
        setAvailabilityStatusForZone(getAvailabilityStatusForZoneFromXml(context,
                R.xml.network_and_internet_fragment, R.string.pk_mobile_network_settings_entry));
        mDataUsageController = getDataUsageController(context);
        mSubscription = new DataSubscription(context);
    }
    @Override
    QCItem getQCItem() {
        if (isHiddenForZone()) {
            return null;
        }
        if (!isDataSubscriptionFlagEnable() && !mDataUsageController.isMobileDataSupported()) {
            return null;
        }
        boolean dataEnabled = mDataUsageController.isMobileDataEnabled();
        Icon icon = MobileNetworkQCUtils.getMobileNetworkSignalIcon(getContext());

        String userRestriction = UserManager.DISALLOW_CONFIG_MOBILE_NETWORKS;
        boolean hasDpmRestrictions = EnterpriseUtils.hasUserRestrictionByDpm(getContext(),
                userRestriction);
        boolean hasUmRestrictions = EnterpriseUtils.hasUserRestrictionByUm(getContext(),
                userRestriction);

        boolean isReadOnlyForZone = isReadOnlyForZone();
        PendingIntent disabledPendingIntent = isReadOnlyForZone
                ? QCUtils.getDisabledToastBroadcastIntent(getContext())
                : getActionDisabledDialogIntent(getContext(), userRestriction);

        QCActionItem dataToggle = new QCActionItem.Builder(QC_TYPE_ACTION_SWITCH)
                .setChecked(dataEnabled)
                .setAction(getBroadcastIntent())
                .setEnabled(!hasUmRestrictions && !hasDpmRestrictions && isWritableForZone())
                .setClickableWhileDisabled(hasDpmRestrictions || isReadOnlyForZone)
                .setDisabledClickAction(disabledPendingIntent)
                .setContentDescription(getContext(), R.string.mobile_network_toggle_title)
                .build();

        QCRow dataRow = new QCRow.Builder()
                .setTitle(getContext().getString(R.string.mobile_network_settings))
                .setSubtitle(getSubtitle(dataEnabled))
                .setCategory(getCategory())
                .setActionText(getActionText(dataEnabled))
                .setIcon(icon)
                .setPrimaryAction(getPrimaryAction())
                .addEndItem(dataToggle)
                .build();

        return new QCList.Builder()
                .addRow(dataRow)
                .build();
    }

    @Override
    Uri getUri() {
        return MOBILE_DATA_ROW_URI;
    }

    @Override
    void onNotifyChange(Intent intent) {
        boolean newState = intent.getBooleanExtra(QC_ACTION_TOGGLE_STATE,
                !mDataUsageController.isMobileDataEnabled());
        mDataUsageController.setMobileDataEnabled(newState);
    }

    @Override
    Class getBackgroundWorkerClass() {
        return MobileDataRowWorker.class;
    }

    @VisibleForTesting
    DataUsageController getDataUsageController(Context context) {
        return new DataUsageController(context);
    }

    String getSubtitle(boolean dataEnabled) {
        if (isDataSubscriptionFlagEnable()
                && dataEnabled
                && mSubscription.isDataSubscriptionInactive()) {
            return getContext().getString(
                    R.string.connectivity_inactive_prompt);
        }
        return MobileNetworkQCUtils.getMobileNetworkSummary(
                getContext(), dataEnabled);
    }

    String getActionText(boolean dataEnabled) {
        if (isDataSubscriptionFlagEnable()
                && dataEnabled
                && mSubscription.isDataSubscriptionInactive()
                && !mIsDistractionOptimizationRequired) {
            return getContext().getString(
                    R.string.connectivity_inactive_action_text);
        }
        return "";
    }

    int getCategory() {
        if (isDataSubscriptionFlagEnable()
                && mSubscription.isDataSubscriptionInactive()) {
            return QCCategory.WARNING;
        }
        return QCCategory.NORMAL;
    }

    void setIsDistractionOptimizationRequired(CarUxRestrictions carUxRestrictions) {
        if (carUxRestrictions == null) {
            mIsDistractionOptimizationRequired = false;
        } else {
            mIsDistractionOptimizationRequired = carUxRestrictions
                    .isRequiresDistractionOptimization();
        }
    }

    void setCarUxRestrictions(CarUxRestrictions carUxRestrictions) {
        setIsDistractionOptimizationRequired(carUxRestrictions);
    }

    PendingIntent getPrimaryAction() {
        if (!isDataSubscriptionFlagEnable()) {
            return null;
        }
        if (!mSubscription.isDataSubscriptionInactive()
                || mIsDistractionOptimizationRequired) {
            return null;
        }
        Intent dataSubscriptionIntent = new Intent(DATA_SUBSCRIPTION_ACTION);
        dataSubscriptionIntent.setPackage(getContext().getString(
                        R.string.connectivity_flow_app));
        dataSubscriptionIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        PendingIntent intent = PendingIntent.getActivity(getContext(), /* requestCode= */ 0,
                dataSubscriptionIntent, PendingIntent.FLAG_IMMUTABLE, null);
        return intent;
    }

    private boolean isDataSubscriptionFlagEnable() {
        return com.android.car.datasubscription.Flags.dataSubscriptionPopUp();
    }

    @VisibleForTesting
    public void setSubscription(DataSubscription dataSubscription) {
        mSubscription = dataSubscription;
    }
}