import { useCallback } from "react";

import starkString from "starkstring";
import { useGetCapitalV1PublicCurrencyAll } from "../services";
import { TruncFix } from "../utils";

export const useDisplayDecimalDigits = () => {
  const { data } = useGetCapitalV1PublicCurrencyAll();
  const getDisplayDecimalDigit = useCallback(
    (targetSymbol: string) => {
      return (
        data?.find(({ symbol }) => symbol === targetSymbol)
          ?.displayDecimalDigits || 0
      );
    },
    [data],
  );

  /** Usage: truncFix(10.01, 'BTC') or truncFix(10.0100, 2) = 10.01 */
  const truncFix = useCallback(
    (value: number | undefined, symdigit?: string | number): number => {
      let tmpSymDigit = symdigit ?? 0;
      if (typeof symdigit === "string")
        tmpSymDigit = getDisplayDecimalDigit(symdigit || "");

      return TruncFix(value || 0, tmpSymDigit as number);
    },
    [getDisplayDecimalDigit],
  );

  /**
   * Usage: truncFixToCurrency(10.01, 'BTC') or truncFixToCurrency(10.0100, 2) =
   * 10.01 , using scientificNotationToDecimal
   */
  const truncFixToCurrency = useCallback(
    (value?: number, symdigit?: string | number) => {
      let tmpSymDigit = symdigit ?? 0;
      if (typeof symdigit === "string")
        tmpSymDigit = getDisplayDecimalDigit(symdigit || "");
      return starkString(TruncFix(value || 0, tmpSymDigit as number))
        .scientificNotationToDecimal()
        .toCurrency()
        .toString();
    },
    [getDisplayDecimalDigit],
  );

  return {
    getDisplayDecimalDigit,
    truncFix,
    truncFixToCurrency,
  };
};