#include <SPI.h>
#include <Ethernet.h>

// Enter a MAC address for your controller below.
byte mac[] = { 
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress server(192,168,0,6);  // numeric IP for Google (no DNS)


// Set the static IP address to use if the DHCP fails to assign
IPAddress ip(192,168,0,177);

// pin button:
const int button2Pin = 2;     // the number of the pushbutton pin
const int button3Pin = 3;
const int button4Pin = 4;
const int button5Pin = 5;

// variables will change:
int button2State = 0;     
int button2StateOld = 0; // variable for reading the pushbutton status
int button3State = 0;     
int button3StateOld = 0; // variable for reading the pushbutton status
int button4State = 0;     
int button4StateOld = 0; // variable for reading the pushbutton status
int button5State = 0;     
int button5StateOld = 0; // variable for reading the pushbutton status
int led = 9;

// Initialize the Ethernet client library
// with the IP address and port of the server 
// that you want to connect to (port 80 is default for HTTP):
EthernetClient client;

void setup() {
  // Open serial communications and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  // start the Ethernet connection:

  // initialize the pushbutton pin as an input:
  pinMode(button2Pin, INPUT); 
  pinMode(button3Pin, INPUT);  
  pinMode(button4Pin, INPUT); 
  pinMode(button5Pin, INPUT); 
   pinMode(led, OUTPUT);

  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    
    Ethernet.begin(mac, ip);
  }
  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected");
    digitalWrite(led, HIGH);

  } 
  else {
    // kf you didn't get a connection to the server:
    Serial.println("connection failed");
  }
}

void loop ()
{
  loop1 ();
  loop2 ();
  loop3 ();
  loop4 ();
}


void loop1 ()
{
  button2StateOld=button2State;
  button2State = digitalRead(button2Pin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (button2State != button2StateOld)  {
    if (button2State == HIGH){

      Serial.println("Button1");
      client.connect(server, 80);

      client.println("POST /API/?Function=PreviewInput&Input=1");
      client.println();
      client.stop();
    } 
  } 
}

void loop2 ()
{  
  button3StateOld=button3State;
  button3State = digitalRead(button3Pin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (button3State != button3StateOld)  {
    if (button3State == HIGH){
      Serial.println("Button2");
      client.connect(server, 80)
        ; 
      client.println("POST /API/?Function=PreviewInput&Input=2");
      client.println();
      client.stop();
    } 
  } 
}
void loop3 ()
{
  button4StateOld=button4State;
  button4State = digitalRead(button4Pin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (button4State != button4StateOld)  {
    if (button4State == HIGH){

      Serial.println("Button3");
      client.connect(server, 80);

      client.println("POST /API/?Function=PreviewInput&Input=3");
      client.println();
      client.stop();
    } 
  } 
}

void loop4 ()
{  
  button5StateOld=button5State;
  button5State = digitalRead(button5Pin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (button5State != button5StateOld)  {
    if (button5State == HIGH){
      Serial.println("Button4");
      client.connect(server, 80)
        ; 
      client.println("POST /API/?Function=cut");
      client.println();
      client.stop();
    } 
  } 
}