Python 2.x removed from macOS 12.3, migrate to Java Script?

[fifafu]

Now that Apple has removed Python from the macOS 12.3 betas, it might make sense to switch the templates to use Java Script widgets - so no third party binaries are needed.

I'm opening this issue to discuss whether this makes sense :-)

I did a quick proof of concept script that seems to work fine, but it currently lacks any customization options apart from the coins and the currencies:

// BTT doesn't support top level await, thus needs to be wrapped in a self executing function
(async () => {
  
  const coinsToLoad = ["BTC"];
  const currenciesToLoad = ["EUR"];
  
  async function fetchCrypto(coins, currencies) {
    const fsyms = coins.join(",");
    const tsyms = currencies.join(",");
    const cryptoCompareURL = `https://min-api.cryptocompare.com/data/pricemultifull?fsyms=${fsyms}&tsyms=${tsyms}`;
  
    const response = await fetch(cryptoCompareURL);
    const json = await response.json();
  
    const currentPrices = [];
  
    for (const currency of currencies) {
      for (const coin of coins) {
        currentPrices.push(json["RAW"][coin][currency]["PRICE"] + " " + currency);
      }
    }
  
    return currentPrices;
  }
  
  const resultPrices = await fetchCrypto(coinsToLoad, currenciesToLoad);
  
  returnToBTT(resultPrices.join(" | "));

})();

I will add a readFile and writeFile function to the BTT Java Script runner, so the cache can also be implemented.

[chrislennon]

Hey, appreciate the heads up - I had no idea that had been removed. To be honest seems like a good enough reason as any to remove the python dependency.

Just to be clear the JS runs inside BTT so a user wouldn't need any nodejs installed etc?

Is there any version/limitations/spec/comparison on what's allowed inside the JS inside BTT?

[fifafu]

yes it runs inside of BTT using the javascript core framework from Apple, it's available starting with 3.333 http://docs.folivora.ai/docs/1106_java_script.html

(maybe having a switch to keep python for older versions makes sense, but 3.333 was also released more than a year ago )

If we use the set_persistent_string_variable we also don't need a file based cache.