/*
 * Copyright (C) 2017 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.googlecode.android_scripting.facade.bluetooth;

import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;

public class BluetoothBroadcastHelper {

    private static BroadcastReceiver sListener;
    private final Context mContext;
    private final BroadcastReceiver mReceiver;
    private final String[] mActions = {BluetoothDevice.ACTION_FOUND,
            BluetoothDevice.ACTION_UUID,
            BluetoothAdapter.ACTION_DISCOVERY_STARTED,
            BluetoothAdapter.ACTION_DISCOVERY_FINISHED};

    public BluetoothBroadcastHelper(Context context, BroadcastReceiver listener) {
        mContext = context;
        sListener = listener;
        mReceiver = new BluetoothReceiver();
    }

    /**
     * Start the Receiver.
     */
    public void startReceiver() {
        IntentFilter mIntentFilter = new IntentFilter();
        for (String action : mActions) {
            mIntentFilter.addAction(action);
        }
        mContext.registerReceiver(mReceiver, mIntentFilter);
    }

    /**
     * Bluetooth Receiver Class.
     */
    public static class BluetoothReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            sListener.onReceive(context, intent);
        }
    }

    /**
     * Unregister the receiver.
     */
    public void stopReceiver() {
        mContext.unregisterReceiver(mReceiver);
    }
}