Need A Web Tool For AdWords Scripts Writing - Javascripts Expert Needed

I work on Google AdWords and this tool have a option where we can write scripts that will do some of our work automatically. I would like to have a web tool where I drag and drop those metric or you can conditions and set some parameters which will automatically get converted into a scripts & get applied to the AdWords account that I want to select. Google AdWords is an advertising platform from Google. You can read about it and must read about the Google scripts and how they works.