/*
 * Copyright (C) 2016 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.settings.network;

import static android.provider.SettingsSlicesContract.KEY_AIRPLANE_MODE;

import static com.android.settings.network.SatelliteWarningDialogActivity.EXTRA_TYPE_OF_SATELLITE_WARNING_DIALOG;
import static com.android.settings.network.SatelliteWarningDialogActivity.TYPE_IS_AIRPLANE_MODE;

import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.provider.SettingsSlicesContract;
import android.telephony.TelephonyManager;
import android.util.Log;

import androidx.annotation.VisibleForTesting;
import androidx.fragment.app.Fragment;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import androidx.preference.TwoStatePreference;

import com.android.settings.AirplaneModeEnabler;
import com.android.settings.R;
import com.android.settings.Utils;
import com.android.settings.core.TogglePreferenceController;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnDestroy;
import com.android.settingslib.core.lifecycle.events.OnResume;
import com.android.settingslib.core.lifecycle.events.OnStart;
import com.android.settingslib.core.lifecycle.events.OnStop;

import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicBoolean;

public class AirplaneModePreferenceController extends TogglePreferenceController
        implements LifecycleObserver, OnStart, OnResume, OnStop, OnDestroy,
        AirplaneModeEnabler.OnAirplaneModeChangedListener {
    private static final String TAG = AirplaneModePreferenceController.class.getSimpleName();
    public static final int REQUEST_CODE_EXIT_ECM = 1;

    /**
     * Uri for Airplane mode Slice.
     */
    public static final Uri SLICE_URI = new Uri.Builder()
            .scheme(ContentResolver.SCHEME_CONTENT)
            .authority(SettingsSlicesContract.AUTHORITY)
            .appendPath(SettingsSlicesContract.PATH_SETTING_ACTION)
            .appendPath(SettingsSlicesContract.KEY_AIRPLANE_MODE)
            .build();

    private Fragment mFragment;
    private AirplaneModeEnabler mAirplaneModeEnabler;
    private TwoStatePreference mAirplaneModePreference;
    private SatelliteRepository mSatelliteRepository;
    @VisibleForTesting
    AtomicBoolean mIsSatelliteOn = new AtomicBoolean(false);

    public AirplaneModePreferenceController(Context context, String key) {
        super(context, key);
        if (isAvailable(mContext)) {
            mAirplaneModeEnabler = new AirplaneModeEnabler(mContext, this);
            mSatelliteRepository = new SatelliteRepository(mContext);
        }
    }

    public void setFragment(Fragment hostFragment) {
        mFragment = hostFragment;
    }

    @VisibleForTesting
    void setAirplaneModeEnabler(AirplaneModeEnabler airplaneModeEnabler) {
        mAirplaneModeEnabler = airplaneModeEnabler;
    }

    @Override
    public boolean handlePreferenceTreeClick(Preference preference) {
        if (KEY_AIRPLANE_MODE.equals(preference.getKey()) && isAvailable()) {
            // In ECM mode launch ECM app dialog
            if (mAirplaneModeEnabler.isInEcmMode()) {
                if (mFragment != null) {
                    mFragment.startActivityForResult(
                            new Intent(TelephonyManager.ACTION_SHOW_NOTICE_ECM_BLOCK_OTHERS, null)
                                    .setPackage(Utils.PHONE_PACKAGE_NAME),
                            REQUEST_CODE_EXIT_ECM);
                }
                return true;
            }

            if (mIsSatelliteOn.get()) {
                mContext.startActivity(
                        new Intent(mContext, SatelliteWarningDialogActivity.class)
                                .putExtra(
                                        EXTRA_TYPE_OF_SATELLITE_WARNING_DIALOG,
                                        TYPE_IS_AIRPLANE_MODE)
                );
                return true;
            }
        }
        return false;
    }

    @Override
    public Uri getSliceUri() {
        return SLICE_URI;
    }

    @Override
    public void displayPreference(PreferenceScreen screen) {
        super.displayPreference(screen);
        mAirplaneModePreference = screen.findPreference(getPreferenceKey());
    }

    public static boolean isAvailable(Context context) {
        return context.getResources().getBoolean(R.bool.config_show_toggle_airplane)
                && !context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_LEANBACK);
    }

    @Override
    public boolean isPublicSlice() {
        return true;
    }

    @Override
    @AvailabilityStatus
    public int getAvailabilityStatus() {
        return isAvailable(mContext) ? AVAILABLE : UNSUPPORTED_ON_DEVICE;
    }

    @Override
    public int getSliceHighlightMenuRes() {
        return R.string.menu_key_network;
    }

    @Override
    public void onStart() {
        if (isAvailable()) {
            mAirplaneModeEnabler.start();
        }
    }

    @Override
    public void onResume() {
        try {
            mIsSatelliteOn.set(
                    mSatelliteRepository.requestIsEnabled(Executors.newSingleThreadExecutor())
                            .get(2000, TimeUnit.MILLISECONDS));
        } catch (ExecutionException | TimeoutException | InterruptedException e) {
            Log.e(TAG, "Error to get satellite status : " + e);
        }
    }

    @Override
    public void onStop() {
        if (isAvailable()) {
            mAirplaneModeEnabler.stop();
        }
    }

    @Override
    public void onDestroy() {
        if (isAvailable()) {
            mAirplaneModeEnabler.close();
        }
    }


    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQUEST_CODE_EXIT_ECM && isAvailable()) {
            final boolean isChoiceYes = (resultCode == Activity.RESULT_OK);
            // Set Airplane mode based on the return value and checkbox state
            mAirplaneModeEnabler.setAirplaneModeInECM(isChoiceYes,
                    mAirplaneModePreference.isChecked());
        }
    }

    @Override
    public boolean isChecked() {
        return isAvailable() && mAirplaneModeEnabler.isAirplaneModeOn();
    }

    @Override
    public boolean setChecked(boolean isChecked) {
        if (isChecked() == isChecked || mIsSatelliteOn.get()) {
            return false;
        }
        if (isAvailable()) {
            mAirplaneModeEnabler.setAirplaneMode(isChecked);
        }
        return true;
    }

    @Override
    public void onAirplaneModeChanged(boolean isAirplaneModeOn) {
        if (mAirplaneModePreference != null) {
            mAirplaneModePreference.setChecked(isAirplaneModeOn);
        }
    }
}