Convert Apple Color List (.CLR) to JSON

CLR To JSON.applescript.js

var app;
var clrFilePath;
var colorList = {};
var jsonFilePath;
var nsColorList;
var nsStringColorList;
var paletteName;

function c2h(colorValue) {
  return ('0' + Math.round(colorValue * 255).toString(16)).slice(-2);
}

function a2h(alphaValue) {
  var result = c2h(alphaValue);

  return result === 'ff' ? '' : result;
}

ObjC.import('AppKit');
app = Application.currentApplication();
app.includeStandardAdditions = true;
//  get file UIT: app.infoFor(clrFilePath).typeIdentifier;
clrFilePath = app.chooseFile({ withPrompt: 'Select the .clr file', ofType: ['dyn.ah62d4rv4ge80g5dw'] }).toString();
paletteName = clrFilePath.slice(clrFilePath.lastIndexOf('/') + 1);
paletteName = paletteName.slice(0, paletteName.lastIndexOf('.'));

nsColorList = $.NSColorList.alloc.initWithNameFromFile(paletteName, clrFilePath);
nsColorList.allKeys.js.forEach(function _getColor(colorName) {
  var nsColor;
  var colorValue;

  nsColor = nsColorList.colorWithKey(colorName);
  if (nsColor.colorSpaceName.js === 'NSCalibratedWhiteColorSpace') {
    colorValue = ['#', c2h(nsColor.whiteComponent), c2h(nsColor.whiteComponent), c2h(nsColor.whiteComponent), a2h(nsColor.alphaComponent)].filter(Boolean).join('');
  } else {
    colorValue = ['#', c2h(nsColor.redComponent), c2h(nsColor.greenComponent), c2h(nsColor.blueComponent), a2h(nsColor.alphaComponent)].filter(Boolean).join('');
  }
  colorList[colorName.js] = colorValue;
});

nsStringColorList = $.NSString.alloc.initWithUTF8String(JSON.stringify(colorList, null, 2));
jsonFilePath = app.chooseFileName({ withPrompt: 'Select the .json file', defaultName: paletteName + '.json' }).toString();
nsStringColorList.writeToFileAtomically(jsonFilePath, true);