import mjs.processing.mobile.mlocation.*;

//set up the variables we'll use for this sketch
PClient client;
PRequest request;
PFont font;
String msg;
double[] coords = new double[2]; //this array stores the lat and lon coordinates from the GPS radio on the phone

void setup() {
  // instantiate a new PClient object to connect to a webserver
  client = new PClient(this, "www.nodesnoop.com");
  // set up the font for displaying text
  font = loadFont();
  textFont(font);
  
  //get the coordinates
  MLocation.location(coords);
  
  //start the request to the web service
  //you can use the second one of these lines to toggle between using the location from the phone
  //and a default location (los angeles)
  request = client.GET("/clients/405/weather.php?lat=" + coords[0] + "&lon=" + coords[1]);
  //request = client.GET("/clients/405/weather.php?lat=34.052187&lon=-118.243425");
  
  //we're not animating, so turn off draw loop
  noLoop();
}

/* libraryEvent
** 
** Don't worry too much about this function.  Basically, the client library sets 
** this as a "callback" function.  As it's loading the requested file from the web server
** it calls this function, along with certain events such as the state of the request
** e.g. EVENT_CONNECTED, etc.
** for our purposes, we are only concerned about the PRequest.EVENT_DONE event
** which signifies that the file has loaded completely.  
** when this happens, we set our msg string to the result of the web query.  In this case
** the request returns the temperature (e.g. 65) in degrees F for today.
*/


void libraryEvent(Object library, int event, Object data) {
  if (library == request) {
    if (event == PRequest.EVENT_CONNECTED) {
      // connected, start reading the data
      request.readBytes();
      redraw();
    } else if (event == PRequest.EVENT_DONE) {
      //done reading
      msg = new String((byte[]) data);
      println(msg); //print out in the mobile processing debug window for testing purposes
      request.close(); //close the request
      redraw(); //call the draw() function once
    } else if (event == PRequest.EVENT_ERROR) {
      // an error occurred, get the error message
      msg = (String) data;
      redraw();
    }
  }
}

void draw() {
  
  //check to see if we successfully loaded valid info into the msg variable
  if(msg == null) {  
    
    //if we don't draw out a plain white background
    
    background(255);
  } else {
    
      //if we do, do something with that information.
      //in this example, we compare the integer value of msg (the integer temperature)
      //with a range of values to change the background color
      
      /*YOU CAN EDIT THIS CODE TO MAYBE DO SOMETHING MORE INTERESTING
      
      if(int(msg) > 60 && int(msg) <= 70) {
        background(255,255,0);
      } else if(int(msg) > 70 && int(msg) <= 100) {
        background(255,0,0);
      } else {
        background(0,0,255);
      }
      
      */
  }
  
  //set the text color to black
  fill(0);
  
  //Again, if the message is valid, print the temperature
  if (msg != null) {
    // show the temperature
    text("The Temperature is: " + msg + " Degrees", 4, 4, width - 8, height - 8);    
  } else if (request == null) {
    // prompt for the network request
    text("Press GET to start.", 4, 4, width - 8, height - 8);    
  } else {
    // handle the network states, giving the user an indication of what's going on
    switch (request.state) {
        case PRequest.STATE_OPENED:
          text("Connecting...", 4, 4, width - 8, height - 8);
          break;
        case PRequest.STATE_FETCHING:
          text("Fetching...", 4, 4, width - 8, height - 8);
          break;
        case PRequest.STATE_ERROR:
          text("An error has occurred: " + msg, 4, 4, width - 8, height - 8);
          break;
    }
  }
}