import simpleML.*;

PFont useFont;
String fontFile = "HelveticaNeue-14.vlw";
//String thisURL = "http://www.crackblur.com/rss";
//String thisURL = "http://www.nytimes.com/services/xml/rss/nyt/TheCity.xml";
String thisURL = "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml";

XMLRequest xmlDoc;
RSSThingy[] rssThingies;

int xPos, yPos;

float fillFader = 255;
int currThingy =1; //ny times puts the channel title twice. BAD. We'll replace it with our own text...
int currLength = 1;

void setup() {
  size(400,400);
  xPos = width/3;
  yPos = height/2;
  smooth();
  setFont(fontFile, 14);
  xmlDoc = new XMLRequest(this,thisURL);
  try{
    xmlDoc.makeRequest();
  } catch(Exception e) {
    println("Oh noes!  I couldn't open the URL!");
  }
}

//create a font
void setFont(String _fontFile, int _fontSize) {
  useFont = loadFont(_fontFile);
  textFont(useFont, _fontSize);
}

void netEvent(XMLRequest _xmlDoc) {
  println("OK, got the feed.  Yayz!");
  //WARNING: titles[0] will be the title for the channel!  need to do title[i+1] to sync
  String[] titles = _xmlDoc.getElementArray("title");
  rssThingies = new RSSThingy[titles.length];
  currLength = rssThingies.length;
  for(int i=0;i<titles.length-1;i++) {
    rssThingies[i] = new RSSThingy(titles[i+1]);
  }
  //Here's our own RSSThingy[1] (rssThingies[0] is always skipped)
  rssThingies[1] = new RSSThingy("Click to drop the news...");
}

class RSSThingy {
  String title;
  RSSThingy(String _title) {
    this.title = _title;
  }
  
  void drawThingy() {
    text(this.title, xPos, yPos, width/2, 100);
  }
}

void draw() {
  background(#FF8800);
  fill(255, 255, 255, fillFader);
  fill(#008800, fillFader);
  if(rssThingies != null) {
    rssThingies[currThingy].drawThingy();
  } else {
    println("Chill, dude.  I'm getting the feed...");
  }
  fillFader = fillFader-1.5;
  fillFader = constrain(fillFader, 0, 255);
  yPos++;
}

void mousePressed() {
  //currThingy = (currThingy+1) % currLength;  CAN'T GET THIS TO WORK
  currThingy++;
  if(currThingy >= rssThingies.length-1) currThingy = 1;  //ny times puts the channel title twice. BAD. We'll replace it with our own text...
  xPos = mouseX;
  yPos = mouseY;
  fillFader = 255;
}