/*
  Button
 
 Turns on and off a light emitting diode(LED) connected to digital  
 pin 13, when pressing a pushbutton attached to pin 2. 
 
 
 The circuit:
 * LED attached from pin 13 to ground 
 * pushbutton attached to pin 2 from +5V
 * 10K resistor attached to pin 2 from ground
 
 * Note: on most Arduinos there is already an LED on the board
 attached to pin 13.
 
 
 created 2005
 by DojoDave <http://www.0j0.org>
 modified 28 Oct 2010
 by Tom Igoe
 
 This example code is in the public domain.
 
 http://www.arduino.cc/en/Tutorial/Button
 */
 
#if defined(ARDUINO) && ARDUINO > 18   // Arduino 0019 or later
#include <SPI.h>
#endif
#include <Ethernet.h>
#include <EthernetDNS.h>
#include <Twitter.h>
#include <PString.h>

// Ethernet Shield Settings
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

// substitute an address on your own network here
byte ip[] = { 192, 168, 1, 177 };

// Your Token to Tweet (get it from http://arduino-tweet.appspot.com/)
Twitter twitter("<<< YOUR TOKEN HERE >>>");

// Message to post

char msg[] = "testing3"; // not being used


// constants won't change. They're used here to 
// set pin numbers:
const int buttonPin = 2;     // the number of the pushbutton pin
const int ledPin =  13;      // the number of the LED pin
      int randNumber = 0;    // random number to display in the tweet
      
// variables will change:
int buttonState = 0;         // variable for reading the pushbutton status

void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);      
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);
  delay(1000);
  Ethernet.begin(mac, ip);
  Serial.begin(9600);
  
  Serial.println("connecting ...");  
}

void loop(){
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (buttonState == HIGH) {     
    // turn LED on:    
    digitalWrite(ledPin, HIGH);
    char buffer[140] = {0};
    //Setup the PString function
    PString mystring(buffer, sizeof(buffer));
    randNumber = random(100,999);
    mystring.print("Testing...");
    mystring.println(randNumber);
    if (twitter.post(buffer)) {
    // Specify &Serial to output received response to Serial.
    // If no output is required, you can just omit the argument, e.g.
    // int status = twitter.wait();
      int status = twitter.wait(&Serial);
      delay(5000);
      if (status == 200) {
        Serial.println("OK.");
      } else {
        Serial.print("failed : code ");
        Serial.println(status);
        }
      }  
    } 
  else {
    // turn LED off:
    digitalWrite(ledPin, LOW);
    Serial.println("waiting..."); 
  }
}