CREATE OR REPLACE FUNCTION rlarp.apply_guid(data jsonb)
RETURNS jsonb
LANGUAGE plv8
AS $function$


function findMostRecentPrice(data) {
  let mostRecentPrice = null;
  let mostRecentYear = null;

  // Iterate through each product
  data.forEach( data.hist => {
    // Check if the product matches the customer channel and version
    if (product.chan === cust && (product.v1ds === prod || product.v0ds === prod)) {
      // Iterate through the seasons for the product
      for (let year in product.season) {
        // Convert year to number for comparison
        let yearNum = parseInt(year);
        // Check if this year is more recent than the current most recent year
        if (mostRecentYear === null || yearNum > mostRecentYear) {
          mostRecentYear = yearNum;
          // Update the most recent price
          mostRecentPrice = product.season[year].price_usd;
        }
      }
    }
  });

  return mostRecentPrice;
}

// Example usage:
const jsonData = data;

const cust = 'W'; // or 'D', depending on the customer
const prod = 'TUH10000'; // the product version you're interested in

const price = findMostRecentPrice(jsonData.data, cust, prod);
console.log(`The most recent price for the customer is: ${price}`);
return price;

$function$;