Delta Maintenance Margin Rate Max Leverage

import ccxt from '../../js/ccxt.js';

console.log ('CCXT Version:', ccxt.version);

function getMaxLeverage (market, positionSize) {
   /**
    * @description Equation taken from https://www.delta.exchange/contracts/
    * @param {object} market CCXT market
    * @param {float} positionSize The value of the position in quote currency
    * @returns The maximum leverage available for the market for the given position size
    */
   const info = market['info'];
   const maxLeverageNotional = Number (info['max_leverage_notional']);
   const initialMarginScalingFactor = Number (info['initial_margin_scaling_factor']);
   let initialMargin = Number (info['initial_margin']);

   if (positionSize <= maxLeverageNotional) {
       const initialMarginRatio = initialMargin / 100;
       return 1 / initialMarginRatio;
   } else {
       initialMargin = initialMargin + (initialMarginScalingFactor * (positionSize - maxLeverageNotional));
       const initialMarginRatio = initialMargin / 100;
       return 1 / initialMarginRatio;
   }
}

function getMaintenanceMarginRate (market, positionSize) {
   /**
    * @description Equation taken from https://www.delta.exchange/contracts/
    * @param {object} market CCXT market
    * @param {float} positionSize The value of the position in quote currency
    * @returns The maintenance margin rate as a percentage for the market with the given position size
    */
   const info = market['info'];
   const maxLeverageNotional = Number (info['max_leverage_notional']);
   const maintenanceMarginScalingFactor = Number (info['maintenance_margin_scaling_factor']);
   const maintenanceMargin = Number (info['maintenance_margin']);

   if (positionSize <= maxLeverageNotional) {
       return maintenanceMargin;
   } else {
       return maintenanceMargin + (maintenanceMarginScalingFactor * (positionSize - maxLeverageNotional));
   }
}

async function main () {

   const exchange = new ccxt.delta();
   await exchange.loadMarkets ();
   
   const symbol = 'ADA/USDT:USDT';
   const market = exchange.market (symbol);

   // Gets the maximum leverage and maintenance margin rate for a position worth 100,000 USDT on the ADA/USDT:USDT market
   const maxLeverage = getMaxLeverage(market, 100000);
   const maintenanceMarginRate = getMaintenanceMarginRate(market, 100000);
   console.log(maxLeverage, maintenanceMarginRate);
}

main ()