/*
 * jQuery jclock - Clock plugin - v 1.2.0
 * http://plugins.jquery.com/project/jclock
 *
 * Copyright (c) 2007-2008 Doug Sparling <http://www.dougsparling.com>
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 */
(function($) {

  $.fn.jclock = function(options) {
    var version = '1.2.0';

    // options
    var opts = $.extend({}, $.fn.jclock.defaults, options);
         
    return this.each(function() {
      $this = $(this);
      $this.timerID = null;
      $this.running = false;

      var o = $.meta ? $.extend({}, opts, $this.data()) : opts;

      $this.timeNotation = o.timeNotation;
      $this.am_pm = o.am_pm;
      $this.utc = o.utc;
      $this.utc_offset = o.utc_offset;

      $this.css({
        fontFamily: o.fontFamily,
        fontSize: o.fontSize,
        backgroundColor: o.background,
        color: o.foreground
      });

      $.fn.jclock.startClock($this);

    });
  };
       
  $.fn.jclock.startClock = function(el) {
    $.fn.jclock.stopClock(el);
    $.fn.jclock.displayTime(el);
  }
  $.fn.jclock.stopClock = function(el) {
    if(el.running) {
      clearTimeout(el.timerID);
    }
    el.running = false;
  }
  $.fn.jclock.displayTime = function(el) {
    var time = $.fn.jclock.getTime(el);
    el.html(time);
    el.timerID = setTimeout(function(){$.fn.jclock.displayTime(el)},1000);
    if (el.onUpdate) el.onUpdate();
  }
  $.fn.jclock.getTime = function(el) {
    var now = new Date();
    var hours, minutes, seconds;

    if(el.utc == true) {
      var localTime = now.getTime();
      var localOffset = now.getTimezoneOffset() * 60000;
      var utc = localTime + localOffset;
      var utcTime = utc + (3600000 * el.utc_offset);
      now = new Date(utcTime);
    }
    hours = now.getHours();
    minutes = now.getMinutes();
    seconds = now.getSeconds();

    var am_pm_text = '';
    (hours >= 12) ? am_pm_text = " P.M." : am_pm_text = " A.M.";

    if (el.timeNotation == '12h') {
      hours = ((hours > 12) ? hours - 12 : hours);
    } else if (el.timeNotation == '12hh') {
      hours = ((hours > 12) ? hours - 12 : hours);
      hours   = ((hours <  10) ? "0" : "") + hours;
    } else {
      hours   = ((hours <  10) ? "0" : "") + hours;
    }

    minutes = ((minutes <  10) ? "0" : "") + minutes;
    seconds = ((seconds <  10) ? "0" : "") + seconds;

    var timeNow = hours + ":" + minutes + ":" + seconds;
    if ( (el.timeNotation == '12h' || el.timeNotation == '12hh') && (el.am_pm == true) ) {
     timeNow += am_pm_text;
    }

    return timeNow;
  };
       
  // plugin defaults
  $.fn.jclock.defaults = {
    timeNotation: '24h',
    am_pm: false,
    utc: false,
    fontFamily: '',
    fontSize: '',
    foreground: '',
    background: '',
    utc_offset: 0,
    onUpdate:null
  };

})(jQuery);



/*
 * jQuery history plugin
 *
 * Copyright (c) 2006 Taku Sano (Mikage Sawatari)
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 *
 * Modified by Lincoln Cooper to add Safari support and only call the callback once during initialization
 * for msie when no initial hash supplied.
 * API rewrite by Lauris Buk�is-Haberkorns
 */

(function($) {

function History()
{
	this._curHash = '';
	this._callback = function(hash){};
};

$.extend(History.prototype, {

	init: function(callback) {
		this._callback = callback;
		this._curHash = location.hash;

		if($.browser.msie) {
			// To stop the callback firing twice during initilization if no hash present
			if (this._curHash == '') {
				this._curHash = '#';
			}

			// add hidden iframe for IE
			$("body").prepend('<iframe id="jQuery_history" style="display: none;"></iframe>');
			var iframe = $("#jQuery_history")[0].contentWindow.document;
			iframe.open();
			iframe.close();
			iframe.location.hash = this._curHash;
		}
		else if ($.browser.safari) {
			// etablish back/forward stacks
			this._historyBackStack = [];
			this._historyBackStack.length = history.length;
			this._historyForwardStack = [];
			this._isFirst = true;
			this._dontCheck = false;
		}
		this._callback(this._curHash.replace(/^#/, ''));
		setInterval(this._check, 100);
	},

	add: function(hash) {
		// This makes the looping function do something
		this._historyBackStack.push(hash);
		
		this._historyForwardStack.length = 0; // clear forwardStack (true click occured)
		this._isFirst = true;
	},
	
	_check: function() {
		if($.browser.msie) {
			// On IE, check for location.hash of iframe
			var ihistory = $("#jQuery_history")[0];
			var iframe = ihistory.contentDocument || ihistory.contentWindow.document;
			var current_hash = iframe.location.hash;
			if(current_hash != $.history._curHash) {
			
				location.hash = current_hash;
				$.history._curHash = current_hash;
				$.history._callback(current_hash.replace(/^#/, ''));
				
			}
		} else if ($.browser.safari) {
			if (!$.history._dontCheck) {
				var historyDelta = history.length - $.history._historyBackStack.length;
				
				if (historyDelta) { // back or forward button has been pushed
					$.history._isFirst = false;
					if (historyDelta < 0) { // back button has been pushed
						// move items to forward stack
						for (var i = 0; i < Math.abs(historyDelta); i++) $.history._historyForwardStack.unshift($.history._historyBackStack.pop());
					} else { // forward button has been pushed
						// move items to back stack
						for (var i = 0; i < historyDelta; i++) $.history._historyBackStack.push($.history._historyForwardStack.shift());
					}
					var cachedHash = $.history._historyBackStack[$.history._historyBackStack.length - 1];
					if (cachedHash != undefined) {
						$.history._curHash = location.hash;
						$.history._callback(cachedHash);
					}
				} else if ($.history._historyBackStack[$.history._historyBackStack.length - 1] == undefined && !$.history._isFirst) {
					// back button has been pushed to beginning and URL already pointed to hash (e.g. a bookmark)
					// document.URL doesn't change in Safari
					if (document.URL.indexOf('#') >= 0) {
						$.history._callback(document.URL.split('#')[1]);
					} else {
						$.history._callback('');
					}
					$.history._isFirst = true;
				}
			}
		} else {
			// otherwise, check for location.hash
			var current_hash = location.hash;
			if(current_hash != $.history._curHash) {
				$.history._curHash = current_hash;
				$.history._callback(current_hash.replace(/^#/, ''));
			}
		}
	},

	load: function(hash) {
		var newhash;
		
		if ($.browser.safari) {
			newhash = hash;
		} else {
			newhash = '#' + hash;
			location.hash = newhash;
		}
		this._curHash = newhash;
		
		if ($.browser.msie) {
			var ihistory = $("#jQuery_history")[0]; // TODO: need contentDocument?
			var iframe = ihistory.contentWindow.document;
			iframe.open();
			iframe.close();
			iframe.location.hash = newhash;
			this._callback(hash);
		}
		else if ($.browser.safari) {
			this._dontCheck = true;
			// Manually keep track of the history values for Safari
			this.add(hash);
			
			// Wait a while before allowing checking so that Safari has time to update the "history" object
			// correctly (otherwise the check loop would detect a false change in hash).
			var fn = function() {$.history._dontCheck = false;};
			window.setTimeout(fn, 200);
			this._callback(hash);
			// N.B. "location.hash=" must be the last line of code for Safari as execution stops afterwards.
			//      By explicitly using the "location.hash" command (instead of using a variable set to "location.hash") the
			//      URL in the browser and the "history" object are both updated correctly.
			location.hash = newhash;
		}
		else {
		  this._callback(hash);
		}
	}
});

$(document).ready(function() {
	$.history = new History(); // singleton instance
});

})(jQuery);



var intervalId = null;
var updateStatusEvery = 30000;
var updateCalculationEvery = 1000;

function load() {
	showDate();

	// Show clock
	$("#clock").jclock();
	
	updateStatus();
	setInterval(updateStatus, updateStatusEvery);	
}

function updateStatus() {
	$.get("/status.json", null, updateStatusCallback, "json")
}

function showDate() {
	var now = new Date();
	var m = "Jan Fév Mars Avril Mai Juin Juillet Août Sept Oct Nov Déc".split(" ")[now.getMonth()];
	$("#clock").before(now.getDate() + " " + m + " ");
}

// Callback for update status 
function updateStatusCallback(data) {
	// Clear the previous interval
	if (intervalId != null) clearInterval(intervalId);
	
	// If working
	if (data.working) {
		var updateEveryMs = updateCalculationEvery;
		var updateCount = 0;
		
		// Show working, hide not working
		$("#working").attr("src", "/images/state_working.jpg");
		$("#resting").attr("src", "/images/state_not_resting.jpg");
		
		// Create a function to decrease rate
		var decRate = function() {
			updateCount++;
			seconds = updateCount*(updateEveryMs/1000);
			calculateRate(data.session_total+seconds, data.donation_total);
		}
		decRate();		
		intervalId = setInterval(decRate, updateEveryMs);
	} else {
		// Hide working, show not working
		$("#working").attr("src", "/images/state_not_working.jpg");
		$("#resting").attr("src", "/images/state_resting.jpg");
		
		// Update one time
		calculateRate(data.session_total, data.donation_total);
	}
}

// calculate rate
function calculateRate(sessionTotal, donationTotal) {
	var rate = 0.0;
	if (sessionTotal == 0) sessionTotal = 1;
	if (donationTotal > 0) rate = ((donationTotal/sessionTotal)*60*60);
	rate = rate.toFixed(2).replace(".", ",");
	$("#rate").text(rate);
}