/* 
 * Copyright (C) 2013-2014 www.Andbrain.com 
 * Faster and more easily to create android apps
 * 
 * */
package com.mady.wifi.api;

import android.app.Activity;
import android.content.Context;

import java.util.Timer;
import java.util.TimerTask;


/**
 * A abstract Scan timer utility class .
 */
public abstract class ScanTimer {
    public static final int DURATION_INFINITY = -1;
    Context mContext;
    Timer timer;
    MyTimerTask myTimerTask;
    private volatile boolean isRunning = false;
    private long interval;
    private long duration;


    public ScanTimer(Context c) {
        this(1000, -1, c);
        mContext = c;
    }


    public ScanTimer(long interval, long duration, Context c) {
        this.interval = interval;
        this.duration = duration;
        mContext = c;
    }

    /**
     * Starts the timer. If the timer was already running, this call is ignored.
     */

    public void start() {
        if (isRunning)
            return;

        isRunning = true;
        if (timer != null) {
            timer.cancel();
        }
        timer = new Timer();
        myTimerTask = new MyTimerTask();
        timer.schedule(myTimerTask, interval, duration);
    }

    /**
     * Paused the timer. If the timer is not running, this call is ignored.
     */
    public void pause() {
        if (!isRunning) return;
        timer.cancel();
        isRunning = false;
    }


    /**
     * Resumes the timer if it was paused, else starts the timer.
     */
    public void resume() {
        this.start();
    }


    /**
     * This method is called periodically with the interval set as the delay between subsequent calls.
     */
    protected abstract void onTick();


    /**
     * This method is called once the timer has run for the specified duration. If the duration was set as infinity, then this method is never called.
     */
    protected abstract void onFinish();

    /**
     * Stops the timer. If the timer is not running, then this call does nothing.
     */
    public void cancel() {
        pause();
    }


    /**
     * @return true if the timer is currently running, and false otherwise.
     */
    public boolean isRunning() {
        return isRunning;
    }

    class MyTimerTask extends TimerTask {

        @Override
        public void run() {
            ((Activity) mContext).runOnUiThread(new Runnable() {
                @Override
                public void run() {

                    onTick();
                }
            });

        }

    }
}