using System;
using RaspberryPiDotNet;
using System.Threading;

namespace RaspiIO
{
  public class LEDs
  {
    GPIOMem[] LED = new GPIOMem[4];
    public LEDs()
    {
      LED[0] = new GPIOMem(GPIOPins.V2_Pin_P1_22);
      LED[1] = new GPIOMem(GPIOPins.V2_Pin_P1_18);
      LED[2] = new GPIOMem(GPIOPins.V2_Pin_P1_16);
      LED[3] = new GPIOMem(GPIOPins.V2_Pin_P1_12);

      for (int i = 0; i < LED.Length; i++)
        LED[i].PinDirection = GPIODirection.Out;
    }

    public void Write(int n, bool state)
    {
      LED[n].Write(state);
    }
  }

  public class Buttons
  {
    GPIOMem[] SW = new GPIOMem[3];

    private const GPIOPins SW0 = GPIOPins.V2Plus_Pin_P1_38;
    private const GPIOPins SW1 = GPIOPins.V2Plus_Pin_P1_37;
    private const GPIOPins SW2 = GPIOPins.V2Plus_Pin_P1_40;

    public Buttons()
    {
      SW[0] = new GPIOMem(SW0);
      SW[1] = new GPIOMem(SW1);
      SW[2] = new GPIOMem(SW2);
      for (int i = 0; i < SW.Length; i++)
        SW[i].PinDirection = GPIODirection.In;
    }

    public PinState value(int n)
    {
      return SW[n].Read();
    }

    public int waitPress(out int n)
    {
      for (int i = 0; i < SW.Length; i++)
      {
        if (SW[i].Read() == PinState.Low)
        {
           n = i;
           return i;
        }
      }
      n = -1;
      return n;
    }
    public int waitButton()
    {
      int n;
      while (true)
      {
        if (waitPress(out n) != -1)
        {
          break;
        }
        Thread.Sleep(50);
      }
      return n;
    }
  }
  public class ADcon
  {
    static GPIOMem[] IrLED = new GPIOMem[4];
    static GPIOMem SPICLK = new GPIOMem(GPIOPins.V2_Pin_P1_23);
    static GPIOMem SPIMISO = new GPIOMem(GPIOPins.V2_Pin_P1_21);
    static GPIOMem SPIMOSI = new GPIOMem(GPIOPins.V2_Pin_P1_19);
    static GPIOMem SPICS = new GPIOMem(GPIOPins.V2_Pin_P1_24);
    public static double[] distance = new double[4];

    public ADcon()
    {
      IrLED[0] = new GPIOMem(GPIOPins.V2_Pin_P1_07);
      IrLED[1] = new GPIOMem(GPIOPins.V2_Pin_P1_11);
      IrLED[2] = new GPIOMem(GPIOPins.V2_Pin_P1_13);
      IrLED[3] = new GPIOMem(GPIOPins.V2_Pin_P1_15);
      for (int i = 0; i < IrLED.Length; i++)
        IrLED[i].PinDirection = GPIODirection.Out;

      SPICLK.PinDirection = GPIODirection.Out;
      SPIMISO.PinDirection = GPIODirection.In;
      SPIMOSI.PinDirection = GPIODirection.Out;
      SPICS.PinDirection = GPIODirection.Out;
    }

    public static void adGet(object state)
    {
      MCP3008 mcp3208;

      for (int adcnum = 0; adcnum < 4; adcnum++)
      {
        IrLED[adcnum].Write(true);
        Thread.Sleep(10);
        mcp3208 = new MCP3008(adcnum, SPICLK, SPIMOSI, SPIMISO, SPICS);
        distance[adcnum] = mcp3208.AnalogToDigital;
        IrLED[adcnum].Write(false);
      }
    }
    public static void turnOut()
    {
      for (int i = 0; i < IrLED.Length; i++)
        IrLED [i].Write (0);
    }
  }
}

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