AuctionCalculator

static fromAuctionData(details: AuctionDetails): AuctionCalculator

static calcInitialRateBump(startAmount: bigint, endAmount: bigint): number

static calcAuctionTakingAmount(takingAmount: bigint, rate: number): bigint

static calcAuctionMakingAmount(makingAmount: bigint, rate: number): bigint

static baseFeeToGasPriceEstimate(baseFee: bigint): bigint

static calcGasBumpEstimate(
  endTakingAmount: bigint,
  gasCostInToToken: bigint
): bigint

calcRateBump(time: bigint, blockBaseFee?: bigint): number

calcAuctionTakingAmount(takingAmount: bigint, rate: number): bigint

import {
  AuctionCalculator,
  AuctionDetails,
  Address
} from '@1inch/fusion-sdk'

const startTime = 1673548149n

const details = new AuctionDetails({
  duration: 180n, // in seconds
  startTime, // unix timestamp (in sec)
  initialRateBump: 50000,
  points: [
    {
      delay: 10, // relative to auction start time
      coefficient: 40000
    },
    {
      delay: 10, // relative to previous point
      coefficient: 40000
    }
  ]
})

const calculator = AuctionCalculator.fromAuctionData(details)

// Calculate rate at specific time
const rate = calculator.calcRateBump(startTime + 11n)
// => 40000

// Calculate taking amount with rate
const auctionTakingAmount = calculator.calcAuctionTakingAmount(
  1420000000n,
  rate
)
// => 1427105680