import java.util.regex.*;
//String twitterURL = "http://twitter.com/#search?q=%23soundcheck";
String query = "%23soundcheck";
String since = "2009-08-10";
String twitterURL = "http://search.twitter.com/search.atom?q="+query+"&since="+since;
String regex1 = "<(.|\n)+?>";
String proxyHost="hawkeye.pfpcint.com";
String proxyPort="8080";
String paramProxyHost="proxyHost";
String paramProxyPort="proxyPort";
String[][] content;
float verticalVelocity=0.0;
float verticalAcceleration=0.1;

void setup() {
  size(800,600);
  background(0);
  smooth();
  frameRate(25);
  PFont font=loadFont("DejaVuSansCondensed-Bold-12.vlw");
  textFont(font);

  if (param("query")!=null)
    query=param("query");
//  if (param(paramProxyHost)!=null)
//    System.setProperty("http.proxyHost", param(paramProxyHost));
//  else
    System.setProperty("http.proxyHost", proxyHost);
//    
//  if (param(paramProxyPort)!=null)
//    System.setProperty("http.proxyPort", param(paramProxyPort));
//  else
    System.setProperty("http.proxyPort", proxyPort);



  // Download RSS feed of tweets tagged with [query]
  refreshTweets();
}

void draw(){
  fill(0,80);
  rect(0,0,width,height);
  int h=20;
  int x=0;
  int y=0;
  int dir=1;
  for (int i=0;i<content.length;i++){
    dir=-dir;
    pushMatrix(); 

    rotate(PI*sin(millis()/1000.0)/360.0*dir);
    translate(width/2.0, verticalTranslate()); 
    scale((1.0+sin(millis()/1000.0+i)*0.05)*0.75); 

    y=3*h*(i);
    textAlign(CENTER);
    fill(255);
    textSize(12);
    text(content[i][0],x,y);
    fill(128);
    textSize(10);
    text(content[i][1],x+20,y+8);

    popMatrix(); 
  }
  if (int(millis()/1000.0)%15==0){
    refreshTweets();
  }

}

void refreshTweets(){
  XMLElement xml = new XMLElement(this, twitterURL);
  XMLElement entries[] = xml.getChildren("entry");
  content=new String[entries.length][2]; 
//  println("number of tweets:"+entries.length);
  for (int i=0 ;i<entries.length;i++){
    String tweet = entries[i].getChild("content").getContent(); 
    String name = entries[i].getChild("author/name").getContent(); 
    tweet=tweet.replaceAll(regex1,"");
//    println(tweet+":"+name);
    content[i][0]=tweet;
    content[i][1]=name;
  }
}



void keyPressed(){
  if (key == CODED) {
  println("key == CODED");
    if (keyCode == UP) {
      verticalVelocity+=verticalAcceleration;
    } else if (keyCode == DOWN) {
      verticalVelocity-=verticalAcceleration;
    }  
  } else if (key == 'r' || key == 'R'){
    refreshTweets();
  }
}

float verticalTranslate(){
  return (20+millis()/80.0*verticalVelocity);
}