I'm running into significant problems understanding how to turn my Python or JS code into a skill for Alexa. I have code written in Python and half written in JS, but no matter what I try, I can't seem to implement it into an Alexa skill.

I've looked through so many tutorials, examples, and walkthroughs now that I'm starting to think that Alexa can't run a short code to determine her response. It seems like every single tutorial is for a facts skill which pulls from an API, which is not what I'm looking to do. At least, I don't think so - I'm still learning.

I've written the code itself in VSCode, but I've been putting as much of the skill together in Amazon Developer Panel as possible, but I'm to a point where I need to calculate how many days have passed since the start date, get the modelo, and output the chores on the revolving four-day list. So far as I can tell, that isn't something I can do without writing a function or two, but everything seems to be a class in JSON. Is that all Alexa uses?

I feel like I've somehow missed something really important in my education so far, or perhaps I'm completely misunderstanding Alexa skills, but I desperately need help to make sense of this.

For Example, if I have this portion of the JSON code:

    const ChoresIntentHandler = {
canHandle(handlerInput) {
    return Alexa.getRequestType(handlerInput.requestEnvelope) === 'IntentRequest'
        && Alexa.getIntentName(handlerInput.requestEnvelope) === 'ChoresIntent';
},
handle(handlerInput) {
    const speakOutput = 'Oh, you know. Stuff.';

    return handlerInput.responseBuilder
        .speak(speakOutput)
        //.reprompt('add a reprompt if you want to keep the session open for the user to respond')
        .getResponse();
}
    };

Say I want to implement this code:

    var one_day = 1000 * 60 * 60 * 24

    const measure_from = new Date('2022-04-08');
    const today = new Date();
    const diff_in_days = Math.floor((today - measure_from) / one_day) - 1 ;

Where on earth do I put it?

Thank you in advance. I've been trying to figure this out for over a month and I'm out of ideas.