How do you resize images by batch on photoshop where it scales based on the smaller dimension

This script will resize the image so that the smallest dimension will become 200 and then crop it to 200 x 200

app.preferences.rulerUnits = Units.PIXELS;

// call the source document
var srcDoc = app.activeDocument;
var imageWidth = srcDoc.width.value;
var imageHeight = srcDoc.height.value;
var ts = 200;

if (imageHeight < imageWidth)
{
  // landscape
  var h = 200;
  var w = Math.floor((imageWidth/imageHeight)*h);
}
else
{
  // portrait
  var w = 200;
  var h = Math.floor((imageHeight/imageWidth)*w);
}
srcDoc.resizeImage(w, h, 72, ResampleMethod.BICUBIC);

//crop it in the centre
app.activeDocument.resizeCanvas(ts, ts, AnchorPosition.MIDDLECENTER);