// Demo using DHCP and DNS to perform a web client request.
// 2011-06-08 <jc@wippler.nl>
//
// License: GPLv2

#include <EtherCard.h>

// ethernet interface mac address, must be unique on the LAN
static byte mymac[] = { 0x74,0x69,0x69,0x2D,0x30,0x31 };

byte Ethernet::buffer[700];
static uint32_t timer;

const char website[] PROGMEM = "192.168.1.1";
const int buttonPin = 2;
const int ledPin = 3;
int ledState = HIGH;

// called when the client request is complete
static void my_callback (byte status, word off, word len) {
  Serial.println(">>>");
  Ethernet::buffer[off+300] = 0;
  Serial.print((const char*) Ethernet::buffer + off);
  Serial.println("...");
}

void setup () {
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, ledState);
  Serial.begin(9600);
  Serial.println(F("\n[webClient]"));

  // Change 'SS' to your Slave Select pin, if you arn't using the default pin
  if (ether.begin(sizeof Ethernet::buffer, mymac, SS) == 0)
    Serial.println(F("Failed to access Ethernet controller"));
  if (!ether.dhcpSetup())
    Serial.println(F("DHCP failed"));

  ether.printIp("IP:  ", ether.myip);
  ether.printIp("GW:  ", ether.gwip);
  ether.printIp("DNS: ", ether.dnsip);

#if 1
  // use DNS to resolve the website's IP address
  if (!ether.dnsLookup(website))
    Serial.println("DNS failed");
#elif 2
  // if website is a string containing an IP address instead of a domain name,
  // then use it directly. Note: the string can not be in PROGMEM.
  char websiteIP[] = "192.168.1.1";
  ether.parseIp(ether.hisip, websiteIP);
#else
  // or provide a numeric IP address instead of a string
  byte hisip[] = { 192,168,88,100 };
  ether.copyIp(ether.hisip, hisip);
#endif
byte hisip[] = { 10,1,23,108 };
  ether.copyIp(ether.hisip, hisip);
  ether.printIp("SRV: ", ether.hisip);
}

int buttonState = HIGH;
unsigned long lastDebounceTime = 0;  // the last time the output pin was toggled
unsigned long debounceDelay = 50;
int lastButtonState = LOW;
void loop () {
  ether.packetLoop(ether.packetReceive());


  int reading = digitalRead(buttonPin);

  if (reading != lastButtonState) {
    // reset the debouncing timer
    lastDebounceTime = millis();

  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    // whatever the reading is at, it's been there for longer than the debounce
    // delay, so take it as the actual current state:

    // if the button state has changed:
    if (reading != buttonState) {
      buttonState = reading;

      // only toggle the LED if the new button state is HIGH
      if (buttonState == LOW) {

        Serial.println();
        Serial.print("<<< REQ ");
        ether.browseUrl(PSTR("/"), "", website, my_callback);

      }
    }
  }
  lastButtonState = reading;
  digitalWrite(ledPin, lastButtonState);



}