/*
 * Copyright (C) 2018 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.launcher3.allapps;

import android.content.Context;
import android.os.AsyncTask;
import android.os.Process;
import android.os.UserHandle;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.Switch;

import com.android.launcher3.compat.UserManagerCompat;

import java.lang.ref.WeakReference;
import java.util.List;

public class WorkModeSwitch extends Switch {

    public WorkModeSwitch(Context context) {
        super(context);
    }

    public WorkModeSwitch(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public WorkModeSwitch(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @Override
    public void setChecked(boolean checked) {
        // No-op, do not change the checked state until broadcast is received.
    }

    @Override
    public void toggle() {
        trySetQuietModeEnabledToAllProfilesAsync(isChecked());
    }

    private void setCheckedInternal(boolean checked) {
        super.setChecked(checked);
    }

    public void refresh() {
        UserManagerCompat userManager = UserManagerCompat.getInstance(getContext());
        setCheckedInternal(!userManager.isAnyProfileQuietModeEnabled());
        setEnabled(true);
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        return ev.getActionMasked() == MotionEvent.ACTION_MOVE || super.onTouchEvent(ev);
    }

    private void trySetQuietModeEnabledToAllProfilesAsync(boolean enabled) {
        new SetQuietModeEnabledAsyncTask(enabled, new WeakReference<>(this)).execute();
    }

    private static final class SetQuietModeEnabledAsyncTask
            extends AsyncTask<Void, Void, Boolean> {

        private final boolean enabled;
        private final WeakReference<WorkModeSwitch> switchWeakReference;

        SetQuietModeEnabledAsyncTask(boolean enabled,
                                     WeakReference<WorkModeSwitch> switchWeakReference) {
            this.enabled = enabled;
            this.switchWeakReference = switchWeakReference;
        }

        @Override
        protected void onPreExecute() {
            super.onPreExecute();
            WorkModeSwitch workModeSwitch = switchWeakReference.get();
            if (workModeSwitch != null) {
                workModeSwitch.setEnabled(false);
            }
        }

        @Override
        protected Boolean doInBackground(Void... voids) {
            WorkModeSwitch workModeSwitch = switchWeakReference.get();
            if (workModeSwitch == null) {
                return false;
            }
            UserManagerCompat userManager =
                    UserManagerCompat.getInstance(workModeSwitch.getContext());
            List<UserHandle> userProfiles = userManager.getUserProfiles();
            boolean showConfirm = false;
            for (UserHandle userProfile : userProfiles) {
                if (Process.myUserHandle().equals(userProfile)) {
                    continue;
                }
                showConfirm |= !userManager.requestQuietModeEnabled(enabled, userProfile);
            }
            return showConfirm;
        }

        @Override
        protected void onPostExecute(Boolean showConfirm) {
            if (showConfirm) {
                WorkModeSwitch workModeSwitch = switchWeakReference.get();
                if (workModeSwitch != null) {
                    workModeSwitch.setEnabled(true);
                }
            }
        }
    }
}