/******************************************************************************
 *
 * Project Name: WS603B Demo Program
 * File name:    main.java
 * Version:      0.6   04/04/09
 *
 * Copyright (C) 2009 by T. Bitson - All rights reserved.
 *
 * formated for tab = 2 spaces
 *
 * This code has only been minimally tested. Use at your own risk!
 *****************************************************************************/

package WS603aDemo;



import java.util.Date;
import java.io.*;

import com.dalsemi.onewire.*;
import com.dalsemi.onewire.adapter.*;
import com.dalsemi.onewire.container.*;



public class Main
{
  // this is the name of the WS603B dual 1-Wire USB to serial interface
  public static final String ONE_WIRE_SERIAL_PORT = "/dev/tty.SLAB_USBtoUART";
  
  // serial number of the DS2760 1-Wire Device in the WS603A
  private final String WS603B_ID           = "51000000038EAB30";
  
  
  
  
  // class constants
  public static final String ADAPTER_TYPE = "DS9097U";
  
  
  // class variables
  public static boolean debugFlag = false;
  
  // 1-wire adapter object
  private DSPortAdapter adapter;
  
  // sensors
  private WS603a ws1;
  
  
  
  
  public Main()
  {
    // get the 1-wire adapter
    try
    {
      // get an instance of the 1-Wire adapter
      adapter = OneWireAccessProvider.getAdapter(ADAPTER_TYPE, ONE_WIRE_SERIAL_PORT);
      if (adapter != null)
      {
        System.out.println("Found Adapter: " + adapter.getAdapterName() +
                " on Port " + adapter.getPortName());
      }
      else
      {
        System.out.println("Error: Unable to find 1-Wire adapter!");
        System.exit(1);
      }
      
      // reset the 1-Wire bus
      resetBus();
    }
    catch (OneWireException e)
    {
      System.out.println("Error Finding Adapter: "+ e);
      System.exit(1);
    }
    
  }
  
  
  
  public void mainLoop()
  {
    Date date = new Date();
    boolean quit = false;
    InputStreamReader in = new InputStreamReader(System.in);
    
    float temp;
    float windSpeed;
    int   windDir;
    
    
    
    // initialize WS603A
    ws1 = new WS603a(adapter, WS603B_ID);
    
    System.out.println("**** WS603A Demo Program version 0.6 ****");
    System.out.println("Press 'q' to quit\n");
    sleep(2000);
    
    
    
    // main program loop
    while(!quit)
    {
      System.out.println("Time = " + new Date());
      
      // read WS603 temperature
      temp = ws1.getTemperature();
      System.out.println("Temp = " + temp );
      
      // get wind speed
      windSpeed = ws1.getWindSpeed();
      System.out.println("Wind Speed = " + windSpeed );
      
      // read direction
      windDir = ws1.getWindDir();
      System.out.println("Wind Direction = " + windDir + " = " +
              ws1.getWindDirStr(windDir));
      
      
      
      // LEDs: mode 0 = manual mode
      // mode 1 through 6 are auto blink mode
      // set LEDs to red if wind is > 2 MPH, otherwise set to blue
      if (windSpeed > 2)
        ws1.setLEDMode(0, ws1.LED_HIGH, ws1.LED_OFF);
      else
        ws1.setLEDMode(0, ws1.LED_OFF, ws1.LED_HIGH);
      
      System.out.println("\n");
      
      
      // check for 'q' key press
      try
      {
        if (in.ready())
          if (in.read() == 'q')
          {
          quit = true;
          }
      }
      catch (IOException e)
      { } // don't care
      
      // the WS603A internally updates once a second
      sleep(1000);
      
    } // end of main loop
    
    
    // set WS603A to auto blink mode on quit
    ws1.setLEDMode(1, ws1.LED_HIGH, ws1.LED_HIGH);
    
    
    // free up the serial port
    try
    {
      adapter.reset();
      adapter.freePort();
    }
    catch (OneWireException e)
    {
      System.out.println("Error Closing Adapter: "+ e);
    }
    
    System.out.println("Bye!")
    ;System.exit(0);
  }
  
  
  
  public static void main(String[] args)
  {

    try
    {
      // get instances to the primary object
      Main weatherServer = new Main();
      
      // call the main program loop
      weatherServer.mainLoop();
      
      
    }
    catch(Throwable t)
    {
      System.out.println("Exception: Main() " + t);
    }
    
    finally
    {
      System.out.println("Program Stopped");
      System.exit(0);
    }
  }
  
  
  
  private void resetBus() // reset the 1-wire bus
  {
    System.out.println("Resetting 1-wire bus");
    
    try
    {
      int result = adapter.reset();
      
      if (result == 0)
        System.out.println("Warning: Reset indicates no Device Present");
      if (result == 3)
        System.out.println("Warning: Reset indicates 1-Wire bus is shorted");
    }
    catch (OneWireException e)
    {
      System.out.println("Exception Resetting the bus: " + e);
    }
  }
  
  
  // helper routine to simplfy the code
  public void sleep(int ms)
  {
    try
    {
      Thread.sleep(ms);
    }
    catch (InterruptedException e)
    {/* don't care */}
  }
}