const BASE_SLIPPAGE_HIGH_TIER = 0.005;
const BASE_SLIPPAGE_MEDIUM_TIER = 0.01;
const BASE_SLIPPAGE_LOW_TIER = 0.015;

const SLIPPAGE_TIERS = {
  high: {
    threshold: 999,
    value: BASE_SLIPPAGE_HIGH_TIER,
  },
  medium: {
    threshold: 99,
    value: BASE_SLIPPAGE_MEDIUM_TIER,
  },
  low: {
    threshold: 0,
    value: BASE_SLIPPAGE_LOW_TIER,
  },
} as const;

/**
 * Functions to calculate slippage based on thresholds
 */
const getSlippageTier = (usdAmount: number): number => {
  if (usdAmount >= SLIPPAGE_TIERS.high.threshold) return SLIPPAGE_TIERS.high.value;
  if (usdAmount >= SLIPPAGE_TIERS.medium.threshold) return SLIPPAGE_TIERS.medium.value;
  return SLIPPAGE_TIERS.low.value;
};

export const calculateAdjustedAmount = (
  baseAmount: number,
  usdAmount: number,
  additionalBuffer: number = 0,
): number => {
  const slippage = getSlippageTier(usdAmount);
  return baseAmount * (1 + slippage + additionalBuffer);
};