var r = 480,
    format = d3.format(",d"),
    fill = d3.scale.category20c();
	
var keeper;	

var bubble = d3.layout.pack()
    .sort(null)
    .size([r, r]);

var vis = d3.select("#chart").append("svg:svg")
    .attr("width", r)
    .attr("height", r)
    .attr("class", "bubble");

//d3.json("../data/flaretest.json", function(json) {

//	keeper = json;
console.log(keeper);
  var node = vis.selectAll("g.node")
      .data(bubble.nodes(classes(keeper))
      .filter(function(d) { return !d.children; }))
    .enter().append("svg:g")
      .attr("class", "node")
      .attr("transform", function(d) { return "translate(" + d.x + "," + d.y + ")"; });

  node.append("svg:title")
      .text(function(d) { return d.className + ": " + format(d.value); });

  node.append("svg:circle")
      .attr("r", function(d) { return d.r; })
      .style("fill", function(d) { return fill(d.packageName); });

  node.append("svg:text")
      .attr("text-anchor", "middle")
      .attr("dy", ".3em")
      .text(function(d) { return d.className.substring(0, d.r / 3); });

console.log(node);	  
	  
	  
	  
function switchIt() {
    var nodes = bubble.nodes(classes(keeper))
      .filter(function(d) { return !d.children; });
    nodes.forEach(function(n,i) {
        n.r/= 2;
    }); 


	
  var snode = vis.selectAll("g.node")
      .data(nodes, function(d,i) { 
           return d.className; });

console.log(snode);
 
  snode.select("text")
	 .transition()
	 .delay(100)
	 .duration(500)
	 .text(function(d) { 
             var s = d.className + ": " + format(d.value); 
             console.log(s);
             return s;
         });

  snode.select("circle")
	 .transition()
	 .delay(100)
	 .duration(500)
      .attr("r", function(d) { return d.r; })
      .style("fill", function(d) { return fill(d.packageName); });


};
	  
// Returns a flattened hierarchy containing all leaf nodes under the root.
function classes(root) {
  var classes = [];

  function recurse(name, node) {
    if (node.children) node.children.forEach(function(child) { recurse(node.name, child); });
    else classes.push({packageName: name, className: node.name, value: node.size});
  }

  recurse(null, root);
  return {children: classes};
}

d3.select("#knop").on("click", switchIt);

//});