/*
 * Copyright (C) 2012 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.contacts.common.dialog;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.FragmentManager;
import android.app.ProgressDialog;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.ContactsContract;
import com.android.dialer.contacts.resources.R;
import com.android.dialer.util.PermissionsUtil;

/** Dialog that clears the frequently contacted list after confirming with the user. */
public class ClearFrequentsDialog extends DialogFragment {

  /** Preferred way to show this dialog */
  public static void show(FragmentManager fragmentManager) {
    ClearFrequentsDialog dialog = new ClearFrequentsDialog();
    dialog.show(fragmentManager, "clearFrequents");
  }

  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    final Context context = getActivity().getApplicationContext();
    final ContentResolver resolver = getActivity().getContentResolver();
    final OnClickListener okListener =
        new OnClickListener() {
          @Override
          public void onClick(DialogInterface dialog, int which) {
            if (!PermissionsUtil.hasContactsReadPermissions(context)) {
              return;
            }

            final ProgressDialog progressDialog =
                ProgressDialog.show(
                    getContext(),
                    getString(R.string.clearFrequentsProgress_title),
                    null,
                    true,
                    true);

            final AsyncTask<Void, Void, Void> task =
                new AsyncTask<Void, Void, Void>() {
                  @Override
                  protected Void doInBackground(Void... params) {
                    resolver.delete(
                        ContactsContract.DataUsageFeedback.DELETE_USAGE_URI, null, null);
                    return null;
                  }

                  @Override
                  protected void onPostExecute(Void result) {
                    progressDialog.dismiss();
                  }
                };
            task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
          }
        };
    return new AlertDialog.Builder(getActivity())
        .setTitle(R.string.clearFrequentsConfirmation_title)
        .setMessage(R.string.clearFrequentsConfirmation)
        .setNegativeButton(android.R.string.cancel, null)
        .setPositiveButton(android.R.string.ok, okListener)
        .setCancelable(true)
        .create();
  }
}