package com.henrypump.io;

import mraa.Dir;
import mraa.Gpio;
import mraa.Result;

/**
 * Created by patrickjmcd on 6/14/17.
 */
public class DigitalOut {
    int channel;
    Gpio gpioPin;

    DigitalOut(int channel){
        if ((channel >=0 && channel <=5) || (channel == 8) || (channel == 9))  {
            this.channel = channel;
            gpioPin = new Gpio(channel);
            gpioPin.dir(Dir.DIR_OUT);
        } else {
            System.err.println("Error: This channel does not exist,.");
            System.exit(Result.ERROR_INVALID_PARAMETER.swigValue());
        }

    }

    void write(int value){
        gpioPin.write(value);
    }

    public static void main(String[] args){
        DigitalOut dO0 = new DigitalOut(0);
        DigitalOut dO1 = new DigitalOut(1);
        DigitalOut dO2 = new DigitalOut(2);
        DigitalOut dO3 = new DigitalOut(3);
        DigitalOut dO4 = new DigitalOut(4);
        DigitalOut dO5 = new DigitalOut(5);
        DigitalOut redLED = new DigitalOut(8);
        DigitalOut greenLED = new DigitalOut(9);
        System.out.println("Testing Digital Outputs");


        try {
            dO0.write(1);
            Thread.sleep(500);
            dO1.write(1);
            Thread.sleep(500);
            dO2.write(1);
            Thread.sleep(500);
            dO3.write(1);
            Thread.sleep(500);
            dO4.write(1);
            Thread.sleep(500);
            dO5.write(1);
            Thread.sleep(500);
            dO5.write(0);
            Thread.sleep(500);
            dO4.write(0);
            Thread.sleep(500);
            dO3.write(0);
            Thread.sleep(500);
            dO2.write(0);
            Thread.sleep(500);
            dO1.write(0);
            Thread.sleep(500);
            dO0.write(0);
            Thread.sleep(500);

            System.out.println("Testing the status LEDs");
            for (int i = 0; i < 10; i++) {
                redLED.write(0);
                greenLED.write(1);
                Thread.sleep(250);
                redLED.write(1);
                greenLED.write(0);
                Thread.sleep(250);

            }
            redLED.write(0);
            greenLED.write(0);

        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}