(function () {


  //getting ratio
  function getImageRatio(sourceCanvas) {
    var canvas = document.createElement('canvas');
    var context = canvas.getContext('2d');
    var width = sourceCanvas.width;
    var height = sourceCanvas.height;



    canvas.width = width;
    canvas.height = height;


    context.beginPath();
    context.arc(width / 2, height / 2, Math.min(width, height) / 2, 0, 2 * Math.PI);
    context.strokeStyle = 'rgba(0,0,0,0)';
    context.stroke();
    context.clip();
    context.drawImage(sourceCanvas, 0, 0, width, height);

    return canvas;
  }




  window.addEventListener('DOMContentLoaded', function () {
    var image = document.getElementById('image');
    var button = document.getElementById('button');
    var result = document.getElementById('result');
    var croppable = false;
    var cropper = new Cropper(image, {
      aspectRatio: 1,
      viewMode: 1,
      built: function () {
        croppable = true;
      }
    });

    button.onclick = function () {
      var croppedCanvas;
      var roundedCanvas;
      var roundedImage;

      if (!croppable) {
        return;
      }

      // Crop
      croppedCanvas = cropper.getCroppedCanvas();


      console.log(getImageRatio(croppedCanvas));

    };

  });

})();