#include <Ethernet.h>
#include <avr/pgmspace.h>

/*

code ugly and many parts stolen/borrowed. redistribution is ok but will 
make people laugh at me, i should be cleaning this up at some point.

some credits:

samuel muller : href="http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1234028200/1
mats vaneslow : http://www.mats-vanselow.de/2009/02/08/arduino-lernt-twittern/

sorry if including your code i found on the internet makes you sad, 
guys.

*/


#define FLUSHPIN 7

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192, 168, 111, 144 };
byte gateway[] = { 192, 168, 111, 1 };
byte subnet[] = { 255, 255, 255, 0 };
 
// Twitter Settings //
byte server[] = { 128, 121, 146, 100 };   // IP von Twitter (default: 128.121.146.100)
#define TWITTERURL "/statuses/update.xml"  // URL zum Update Script
#define TWITTERUSERNAMEPW "password goes here"  // Base64 enkodet 
USERNAME:PASSWORT

// freenode!
byte freenode[] = { 130, 237, 188, 200 };
#define USER "USER hacklabtoilet - hacklab.to hacklabtoilet"
#define NICK "NICK hacklabtoilet"
#define JOIN "JOIN #hacklabto"
#define PRIVMSG "PRIVMSG #hacklabto :"
#define PART "PART #hacklabto"
#define QUIT "QUIT"

Client client(server, 80);
Client irc(freenode, 6667);
 
void setup()
{
  pinMode(FLUSHPIN, INPUT);
  Ethernet.begin(mac, ip, gateway, subnet);  
  Serial.begin(9600);  
  delay(1000); 
  randomSeed(analogRead(0));
  Serial.println("initialized!");
  
}

int f = 0;
int prevflush = 0;
long time = 0; 

#define DEBOUNCE 3000

#define NUMMSG 48

prog_char msg0[] PROGMEM = "toilet flushed!";
prog_char msg1[] PROGMEM = "flush flush flush";
prog_char msg2[] PROGMEM = "fluuuuuuuuuuuuuuuuuuush";
prog_char msg3[] PROGMEM = "swooooooooooooooosh";
prog_char msg4[] PROGMEM = "MISSION ACCOMPLISHED.";
prog_char msg5[] PROGMEM = "bombs away!";
prog_char msg6[] PROGMEM = "plop";
prog_char msg7[] PROGMEM = "don't forget to wash your hands!";
prog_char msg8[] PROGMEM = "you sank my battleship";
prog_char msg9[] PROGMEM = "take that, admiral lord nelson!";
prog_char msg10[] PROGMEM = "blue?! WHAT were you eating?";
prog_char msg11[] PROGMEM = "plop plop fizz fizz";
prog_char msg12[] PROGMEM = "how many flushes does it take to get to the center of a tootsie roll pop?";
prog_char msg13[] PROGMEM = "WHOOP WHOOP WHOOP";
prog_char msg14[] PROGMEM = "down the hatch!";
prog_char msg15[] PROGMEM = "here we gooooooooooooooooo";
prog_char msg16[] PROGMEM = "i wonder if it really swirls in the other direction in the southern hemisphere";
prog_char msg17[] PROGMEM = "maybe you should have faced scylla instead";
prog_char msg18[] PROGMEM = "i sure am glad twitter is being put to good use!";
prog_char msg19[] PROGMEM = "i strongly support eating more fiber as part of a healthy diet";
prog_char msg20[] PROGMEM = "for your comfort and convenience, this toilet never rests";
prog_char msg21[] PROGMEM = "it's amazing what you can do with an arduino and a mercury switch these days";
prog_char msg22[] PROGMEM = "[insert joke about pull-down resistors here]";
prog_char msg23[] PROGMEM = "just wait until the rfid reader gets installed and i can call you by name";
prog_char msg24[] PROGMEM = "KHAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAANNNNNNNNNNNNNNNNNNNNNNNNNNNN";
prog_char msg25[] PROGMEM = "hey kid, i'm a toilet, stop with all the downloadin'";
prog_char msg26[] PROGMEM = "at least i'm not a lisp machine";
prog_char msg27[] PROGMEM = "anyone have a copy of 2600 magazine? i need some quality reading!";
prog_char msg28[] PROGMEM = "another day, another flush";
prog_char msg29[] PROGMEM = "why do i have so many followers?!";
prog_char msg30[] PROGMEM = "hey tweeps, i just wanted to share this awesome moment with you";
prog_char msg31[] PROGMEM = "http://penny-arcade.com/comic/2008/4/23/";
prog_char msg32[] PROGMEM = "conserve water, use the toilet with a fr... nevermind";
prog_char msg33[] PROGMEM = "well that was satisfying";
prog_char msg34[] PROGMEM = "this flush announcement brought to you by @thirdson, blame him";
prog_char msg35[] PROGMEM = "just dropping the kids off at the pool";
prog_char msg36[] PROGMEM = "HI VICKI! :D :D :D";
prog_char msg37[] PROGMEM = "does anyone know a good plumber?";
prog_char msg38[] PROGMEM = "i sure am glad we have a lot of tubes at the lab";
prog_char msg39[] PROGMEM = "high bandwidth mode enabled";
prog_char msg40[] PROGMEM = "it's that time again";
prog_char msg41[] PROGMEM = "twitter is so awesome, i'm so happy i can tweet about this!";
prog_char msg42[] PROGMEM = "arduinos are SO COOL.";
prog_char msg43[] PROGMEM = "i hope i get slashdotted! this definitely qualifies as \"news for nerds, stuff that matters.\"";
prog_char msg44[] PROGMEM = "can i trade jobs with someone for the day?";
prog_char msg45[] PROGMEM = "i hope nobody runs solitaire on me, that would be very rude and disrespectful";
prog_char msg46[] PROGMEM = "this toilet is now IP enabled!";
prog_char msg47[] PROGMEM = "SIGSEGV detected, dumping core";

PROGMEM const char *messages[] = {
  msg0, msg1, msg2, msg3, msg4, msg5, msg6, msg7, msg8, msg9,
  msg10, msg11, msg12, msg13, msg14, msg15, msg16, msg17, msg18, msg19,
  msg20, msg21, msg22, msg23, msg24, msg25, msg26, msg27, msg28, msg29,
  msg30, msg31, msg32, msg33, msg34, msg35, msg36, msg37, msg38, msg39,
  msg40, msg41, msg42, msg43, msg44, msg45, msg46, msg47
}; 

int msg;
char buffer[141];

void loop()
{

  fetchTwitterUpdate();
  
  f = digitalRead(FLUSHPIN);
  
  if( (prevflush == 0) && (f == 1) && (millis() - time > DEBOUNCE) ) {
    time = millis();
    msg = random(NUMMSG);
    strcpy_P(buffer, (const char*)pgm_read_word(&(messages[msg])));
    sendTwitterUpdate(buffer);
    sendIRCUpdate(buffer);
  }
  
  prevflush = f;
  
}
 
/// Functions ////
 
void sendTwitterUpdate(char* tweet)        // Nachricht an Twitter übermitteln
{
   
  Serial.print(tweet);
  Serial.print(" - ");
  Serial.print("connecting... ");
 
  if (client.connect()) {
 
    client.print("POST ");
    client.print(TWITTERURL);
    client.println(" HTTP/1.1");
    client.println("Host: twitter.com");
    client.print("Authorization: Basic ");
    client.println(TWITTERUSERNAMEPW);
    client.print("Content-Length: ");
    client.println(9+strlen(tweet));
    client.println("");
    client.println("status=");
    client.println(tweet);
    Serial.println("twitter message sent!");
  } else {
    Serial.println("connection failed.");
  } 
  
}

void sendIRCUpdate(char *tweet)
{

  Serial.print(tweet);
  Serial.print(" - ");
  Serial.print("connecting (IRC)... ");
 
  if (irc.connect()) {

    irc.println(USER);
    delay(5000);
    irc.println(NICK);
    irc.println(JOIN);
    irc.print(PRIVMSG);
    irc.println(tweet);
    irc.println(PART);
    irc.println(QUIT);
    Serial.println("irc message sent!");
  } else {
    Serial.println("connection failed.");
  } 
  
  
}

 
void fetchTwitterUpdate()     // Rückmeldung von Twitter auslesen
{
  if (client.available()) {
    char c = client.read();
    // Serial.print(c);
  }
 
  while(!client.connected()) {
    client.stop();
  }
  
  if( irc.available()) {
    char c = irc.read();
  }
  while(!irc.connected()) {
    irc.stop();
  }
  
}