// Craiglist search demo - November 2011 - rtwomey@u.washington.edu
//
// 
//

void setup() { 
  size(200, 200); 
  background(50); 
  fill(200); 

  String baseURL = "http://seattle.craigslist.org/search/fua?"; // search for furniture
  String searchString="cubicle"; // what we are searching for

  String query = baseURL+"query="+searchString+"&format=rss";
  println(query);
  
  // do actual query call
  XMLElement xml = new XMLElement(this, query);  // holds the results
  //println(xml);  

  // gather results
  XMLElement[] items = xml.getChildren("item");  // get item results
  //println(items);  
  println(items.length + " results:");

  //loop over results
  for (int i = 0; i < items.length; i++) {
    String titleEl = items[i].getChild("title").getContent();
    String desc = items[i].getChild("description").getContent();
    String date = items[i].getChild("dc:date").getContent();
    String url = items[i].getChild("link").getContent();

    // display me!
    //println(items[i]);

    String title = titleEl.replaceAll("FS:\\s", "");
    title = title.replaceAll("(\\(.*\\))", "");  // strip locations
    title = title.replaceAll("\\$\\d*", "");  // strip costs
    title = title.trim();
    //println(title);

    // grab cost if present
    Pattern p = Pattern.compile("\\$\\d*");
    Matcher m = p.matcher(titleEl);
    boolean found = m.find();
    String cost;
    if (found) {
      //println(found);
      cost = m.group();
    } 
    else {
      cost="not specified";
    };


    // grab location
    Pattern q = Pattern.compile("(-->Location: ).*\\<");
    Matcher n = q.matcher(desc);
    found = n.find();
    String location;
    if(found) {
       location = n.group();
       location = location.replaceAll("-->Location: ","");
       location = location.replaceAll("\\<","");

    } else {
      location="not found";
    }


    println(title);
    println(cost);
    println(location);
    println();

    // or process me with regular expressions
    // or string operations
    // or draw me to screen. store me for later.
  }
} 

void draw() {
}