import axios from "axios";
import { useState } from "react";
import { useInterval } from "./useInterval";
import LRU from "lru-cache";

const lru = new LRU({
  ttl: 1000 * 60 * 2,
  ttlAutopurge: true
});

export async function getCoinGeckoPriceUsd(
  tokenName: string = "solana"
): Promise<number | undefined> {
  let searchName = tokenName.toLowerCase();
  // Some mappings
  if (searchName === "grape") {
    searchName = "grape-2";
  }

  if (!lru.has(searchName)) {
    const resp = await axios(
      `https://api.coingecko.com/api/v3/simple/price?ids=${searchName}&vs_currencies=usd`
    );
    const result = resp.data[searchName];
    if (result) {
      lru.set(searchName, result.usd);
    }
  }

  return lru.get(searchName);
}

export const useCoinGeckoPrice = (tokenName: string = "solana"): number | undefined => {
  const [price, setPrice] = useState<number>();

  useInterval(() => {
    getCoinGeckoPriceUsd(tokenName)?.then(p => setPrice(p)).catch(console.log);
  }, 2 * 60 * 1000);

  return price;
};