import { getCache, setCache, isOpen } from "$lib/store";

const checkMarketHour = async () => {
  const holidays = [
    "2024-01-01",
    "2024-01-15",
    "2024-02-19",
    "2024-03-29",
    "2024-05-27",
    "2024-06-19",
    "2024-07-04",
    "2024-09-02",
    "2024-11-28",
    "2024-12-25",
  ];
  const currentDate = new Date().toISOString().split("T")[0];

  // Get the current time in the ET time zone
  const etTimeZone = "America/New_York";
  const currentTime = new Date().toLocaleString("en-US", {
    timeZone: etTimeZone,
  });

  // Determine if the NYSE is currently open or closed
  const currentHour = new Date(currentTime).getHours();
  const isWeekendValue =
    new Date(currentTime).getDay() === 6 ||
    new Date(currentTime).getDay() === 0;
  const isBeforeMarketOpenValue =
    currentHour < 9 ||
    (currentHour === 9 && new Date(currentTime).getMinutes() < 30);
  const isAfterMarketCloseValue = currentHour >= 16;

  isOpen.set(
    !(
      isWeekendValue ||
      isBeforeMarketOpenValue ||
      isAfterMarketCloseValue ||
      holidays?.includes(currentDate)
    ),
  );
};

export const load = async ({ parent }) => {
  checkMarketHour();
  const { apiKey, apiURL, user } = await parent();

  const getDarkPoolFlow = async () => {
    let output;

    const cachedData = getCache("", "getDarkPoolFlow");
    if (cachedData) {
      output = cachedData;
    } else {
      const response = await fetch(apiURL + "/dark-pool-flow", {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
          "X-API-KEY": apiKey,
        },
      });

      output = await response.json();

      setCache("", output, "getDarkPoolFlow");
    }

    output = user?.tier !== "Pro" ? output?.slice(0, 6) : output;

    return output;
  };

  // Make sure to return a promise
  return {
    getDarkPoolFlow: await getDarkPoolFlow(),
  };
};