var width = 972
var height = 298
var font_size = 211

var x = 58
var y = 119


var rect = g.append("rect")
  .attr("width",width)
  .attr("height",height)
  .attr("fill","black")
  .attr("x",x)
  .attr("y",y)

 var text1 = g.append("text")
  .attr("fill","red")
  .attr("x",x)
  .attr("y",y)
  .attr("font-size",font_size)
  .text("Hellllloooo")
  .style('dominant-baseline','hanging')
  .style('font-family','Times')


text = fitTextToBox(rect,text1)

function between(x, min, max) {
    return x >= min && x <= max;
}


function fitTextToBox(box,text){

        // Grab width and height of the parent box
        var width  = parseInt(box.attr("width"))
        var height = parseInt(box.attr("height"))

        // Grab the orignial font size of the text
        var font_size = parseInt(text.attr("font-size"))
        // This is used when changing to a new font size
        var start_font_size = font_size


        var flag = true

        //SVGNode of the text input parameter, which is a d3 selection
        var textNode = text.node()
        // Bounding box of the text node, give you a SVGRect with x,y and width,height
        var boundingBoxOfTextNode = text.node().getBBox();

        //This defines the precise factor, which controlls how precise the text fits into the box
        var preciseFactor = 9;

        //These variables are used for a check if the font size is in a min and max range
        //which is simply the orginal values minus or plus a precise factor
        var maxWidth = width + preciseFactor
        var minWidth = width - preciseFactor

        var maxHeight = height + preciseFactor
        var minHeight = height - preciseFactor

        //Used to observe the number of iterations
        var countOfIterations = 0;

   		var maxTextLength = 0;
        var maxValue = start_font_size;
	    var minValue = 0;
        //These variables are needed inside the loop to calculate the lenght and the height of the text after in- or decreasing the text
        var textLength;
        var textHeight;
        //console.log("MaxWidth",maxWidth,"MaxHeight",maxHeight,"Start ffont",start_font_size)
        while(flag == true){
			  //console.log("i",countOfIterations,start_font_size);
              textLength = textNode.getComputedTextLength()
              textHeight = boundingBoxOfTextNode.height

              //Increase font size, because text is to small for the box
              if( between(textLength,0,maxWidth-preciseFactor-preciseFactor) && between(textHeight,0,maxHeight-preciseFactor-preciseFactor) ){
			    if(start_font_size >  minValue)
                  minValue = start_font_size
                newVal = maxValue * 2;

                start_font_size = newVal
                maxValue = start_font_size
              }
              //Decrease font size, because text width is to wide OR the text height is bigger
              if( (textLength > width && textHeight < height) || (textLength > width || textHeight > height) ){
	            if(start_font_size <  maxValue)
                  maxValue = start_font_size
                newVal = (maxValue - minValue) / 2
                newVal = maxValue - newVal
               //start_font_size /=2
                start_font_size = newVal



              }
                //console.log("max",maxValue,"min",minValue)
              //If the text length or text height is in the correct range, that means not to small and not to big
              if( ( between(textLength,minWidth,maxWidth) && textHeight < height) || ( between(textHeight,minHeight,maxHeight) && textLength < width )  ){
                console.log("End Detect",countOfIterations);
                flag = false
              }


              text.attr("font-size",start_font_size)
              boundingBoxOfTextNode = textNode.getBBox()

              //Can be turned of if there are no problems with the algorithm
              if(countOfIterations > 51){
               // If this branch is reached it took to long to calculate the size or
               // the algo is in a deadlock
                break;
              }else{
                countOfIterations++;
              }


        }

        return text;
  }