$(document).ready(function() {
    /*$('html').keypress(function(e){
        if(e.which == 13 && !$(\"textarea\").is(\":focus\")){
            $('form').submit();
            return false;
        }
    });*/
	$(\"a[data-back]\").live(\"click\",
                 function(){
                  var ref = document.referrer;
                  document.location=ref;
                   });
	 //the following are for AJAX requests of form objects
	$("select[data-onchange]").live("change", function() {
		$.ajax({
			type : "post",
			url : $(this).attr("data-url"),
			data : $(this).serialize(),
			success : function(data) {
				eval(data);
			},
			dataType : "script"
		});
	});
	$('input[type="radio"][data-onclick]').live("change", function() {
		data = $(this).serialze();
		if($(this).attr("data-params")) {
			data += "&" + $(this).attr("data-params");
		}
		$.ajax({
			type : "post",
			url : eval($(this).attr("data-onclick")),
			data : data,
			success : function(data) {
				eval(data);
			},
			dataType : "script"
		})
	});
	//The following Load jqPlot graphs and charts
	$("div.piechart").each(function() {
		pieChart($(this).attr("id"), $(this).attr("data-xmlurl"));
	});
	
	$("div.barchart").each(function() {
		$(this).attr("data-barchartloaded", "1");
		barChart($(this).attr("id"), $(this).attr("data-xmlurl"));
	});

	$("div.stackedcolumn").each(function() {
		stackedColumn($(this).attr("id"), $(this).attr("data-xmlurl"))
	})
	//The following provide click-to-link capabilities in charts
	$("div.piechart").live('jqplotDataClick', function(ev, seriesIndex, pointIndex, data) {
		if(data[2] != "") {

			window.location = data[2];
		}
	});
	$("div.barchart").live('jqplotDataClick', function(ev, seriesIndex, pointIndex, data) {
		if(data[2] != "") {
			window.location = data[2];
		}
	});
	$('div.stackedcolumn').live('jqplotDataClick', 
    function (ev, seriesIndex, pointIndex, data) {
    	//loaded from a global array in loadLinks...FixMe!
    	window.location = links[seriesIndex];
    });
});

//functions specific to a stacked column
function stackedColumn(name, xmlurl) {
	$.get(xmlurl, function(xml) {
		loadLinks(xml);
		establishSize(name,xml);
		var series = loadStackedColumns(xml)
		for(var i = 0; i < series.length; i++)
		{
			for(var j = 0; j < series[i].length; j++)
			{
				$("#debug").append(series[i][j]+"|");
			}
			$("#debug").append("<br />");
		}
		$.jqplot(name,series , {
			// Tell the plot to stack the bars.
			stackSeries : true,
			title: getTitle(xml),
			captureRightClick : true,
			seriesDefaults : {
				renderer : $.jqplot.BarRenderer,
				rendererOptions : {
					// Put a 30 pixel margin between bars.
					barMargin : 30,
					// Highlight bars when mouse button pressed.
					// Disables default highlighting on mouse over.
					highlightMouseDown : true
				},
				pointLabels : {
					show : true
				}
			},
			axes : {
				xaxis : {
					renderer : $.jqplot.CategoryAxisRenderer
				},
				yaxis : {
					// Don't pad out the bottom of the data range.  By default,
					// axes scaled as if data extended 10% above and below the
					// actual range to prevent data points right on grid boundaries.
					// Don't want to do that here.
					padMin : 0
				}
			},
			legend : {
				show : true,
				location : 'e',
				placement : 'outside'
			}
		});
	});
}

function loadLinks(xml)
{
	//Global, but maybe we can find a way around this later...FixMe!
	links = [];
	$(xml).find("series").each(function(){
		links.push($(this).attr("link"));
	});
}
function loadStackedColumns(xml)
{
	var bar = [];
	var partions = [];
	$(xml).find("series").each(function(){
		$(this).children("partion").each(function(){
			bar.push(parseInt($(this).attr("size")));
		});
		partions.push(bar);
		bar = new Array();
	});
	return partions;
}
//functions specific to barchart
function barChart(name, xmlurl) {
	$.ajax({
		url : xmlurl,
		type : "get",
		success : function(xml) {
			loadBGImage(name, xml);
			establishSize(name, xml);
			bars = getBars(xml);
			pointLabels = [];
			for( i = 0; i < bars.length; i++) {
				pointLabels.push(bars[i][1]);
			}
			$.jqplot(name, [bars], {
				seriesColors : getSeriesColors(xml),
				seriesDefaults : {
					renderer : $.jqplot.BarRenderer,
					renderOptions : {
						fillToZero : true,
						barWidth : getBarWidth(xml)
					},
					pointLabels : {
						show : true
					}
				},
				series : [{
					pointLabels : {
						labels : pointLabels,
					}
				}],
				title : {
					text : getTitle(xml)
				},
				grid : {
					background : getBGColor(xml),
					gridLine : getGridLineColor(xml),
					borderColor : getGridBorderColor(xml)
				},
				axesDefaults : {
					tickRenderer : $.jqplot.CanvasAxisTickRenderer
				},
				axes : {
					xaxis : {
						renderer : $.jqplot.CategoryAxisRenderer,
						tickOptions : {
							angle : 30
						},
						ticks : getTicks(xml),
						autoscale : true
					}
				}
			});
			return true;
		},
		error : function(xhr, status, error) {
			alert("A fatal error occured.")
			var err = eval("(" + xhr.responseText + ")");
			alert(err.Message);
		},
		async : false,
		timeout : 3000
	});
}

function getBars(xml) {
	var bars = [];
	var bar = [];
	var categoryId = 1;
	$(xml).find("category").each(function() {
		$(this).find("bar").each(function() {
			bar.push(categoryId);
			bar.push(parseInt($(this).attr("size")));
			var link = $(this).attr("link");
			if(link)
				bar.push(link);
			else
				bar.push("");
			bars.push(bar);
			bar = new Array();
		});
		categoryId++;
	});
	return bars;
}

function getBarWidth(xml) {
	var width = $(xml).find("render").attr("barwidth");
	if(!width)
		return null;
	else
		return width;
}

function getTicks(xml) {
	var ticks = [];
	$(xml).find("category").each(function() {
		ticks.push($(this).find("tick").attr("text"));
	});
	return ticks;
}

//functions specific to piechart
function pieChart(name, xmlurl) {
	$.get(xmlurl, function(xml) {
		establishSize(name, xml);
		loadBGImage(name, xml);
		$.jqplot(name, [getSlices(xml)], {
			seriesDefaults : {
				renderer : $.jqplot.PieRenderer,
				renderOptions : {
					showDataLabels : true
				}
			},
			legend : {
				show : true,
				location : 'e'
			}
		});
	});
}

function getSlices(xml) {
	var slices = [];
	$(xml).find("category").each(function() {
		$(this).find("slice").each(function() {
			slice = new Array($(this).attr("name"));
			slice.push(parseInt($(this).attr("size")));
			var link = $(this).attr("link");
			if(link)
				slice.push(link);
			else
				slice.push("");
			slices.push(slice);
		});
	});
	return slices;
}

//functions that can be used by all
function loadBGImage(name, xml) {
	var bgimage = "none";
	$(xml).find("backgroundImage").each(function() {
		bgimage = "url('" + $(this).text() + "')";
	});
	$("div#" + name).css("background-image", bgimage);
}

function establishSize(name, xml) {
	var $grid = $(xml).find("grid");
	$("div#" + name).css("width", $grid.find("width").text());
	$("div#" + name).css("height", $grid.find("height").text());
}

function getTitle(xml) {
	var title = null;
	$(xml).find("title").each(function() {
		title = $(this).text();
	});
	return title;
}

function getBGColor(xml) {
	return $(xml).find("background").text();
}

function getGridLineColor(xml) {
	return $(xml).find("grid lineColor").text();
}

function getGridBorderColor(xml) {
	return $(xml).find("grid borderColor").text();
}

function getSeriesColors(xml) {
	colors = [];
	$(xml).find("grid seriesColor").each(function() {
		colors.push($(this).text());
	});
	if(colors.length < 1)
		colors.push("#0f0");
	return colors;
}