/*
 * Copyright (C) 2020 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.testutils;

import android.content.Context;
import android.content.Intent;
import android.os.UserHandle;
import android.provider.Settings;
import android.util.Log;

import androidx.test.core.app.ApplicationProvider;

import org.junit.rules.ExternalResource;

/** A test rule that is used to manager the Airplane Mode resource for testing. */
public final class AirplaneModeRule extends ExternalResource {

    private static final String TAG = "AirplaneModeRule";

    private Context mContext;
    private boolean mBackupValue;
    private boolean mShouldRestore;

    @Override
    protected void before() throws Throwable {
        mContext = ApplicationProvider.getApplicationContext();
    }

    @Override
    protected void after() {
        if (mShouldRestore) {
            Log.d(TAG, "Restore Airplane Mode value:" + mBackupValue);
            setAirplaneMode(mContext, mBackupValue);
        }
    }

    public void setAirplaneMode(boolean enable) {
        if (!mShouldRestore && isAirplaneModeOn() != enable) {
            mShouldRestore = true;
            mBackupValue = isAirplaneModeOn();
            Log.d(TAG, "Backup Airplane Mode value:" + mBackupValue);
        }
        Log.d(TAG, "Set Airplane Mode enable:" + enable);
        setAirplaneMode(mContext, enable);
    }

    public boolean isAirplaneModeOn() {
        return Settings.Global.getInt(mContext.getContentResolver(),
                Settings.Global.AIRPLANE_MODE_ON, 0) != 0;
    }

    private static void setAirplaneMode(Context context, boolean enable) {
        // Change the system setting
        Settings.Global.putInt(context.getContentResolver(), Settings.Global.AIRPLANE_MODE_ON,
                enable ? 1 : 0);

        // Post the intent
        final Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED);
        intent.putExtra("state", enable);
        context.sendBroadcastAsUser(intent, UserHandle.ALL);
    }
}