quickswap.js

var silent = false;
var mute = () => silent = true;
var unmute = () => silent = false;

var loop = () => {
  const play = (frequency = 300, duration = 1e3) => {
    const context = new AudioContext();
    const gainNode = context.createGain();
    const oscillator = context.createOscillator();
    oscillator.frequency.value = frequency;
    oscillator.connect(gainNode);
    gainNode.connect(context.destination);
    oscillator.start(0);
    setTimeout(() => oscillator.stop(), duration);
  };

  const expand = () => {
    [...document.querySelectorAll('button')].filter(b => b.innerText === 'Manage').map(btn => {
      const isOpen = btn.parentNode.parentNode.parentNode.querySelectorAll('button').length > 1;
      if (!isOpen) btn.click();
    });
  };

  try {
    const SEPARATOR = '/';
    const USDC = 'USDC';
    const USDT = 'USDT';
    const DAI = 'DAI';
    const pairs = [
      [USDC, USDT].join(SEPARATOR),
      [USDC, DAI].join(SEPARATOR),
      [DAI, USDT].join(SEPARATOR)
    ];

    const getPooled = (parent = document, coin = 'USDC') => {
      const label = [...parent.querySelectorAll('div')].filter(d => d.innerHTML === `Pooled ${coin}:`)[0];
      return +label.parentNode.parentNode.querySelectorAll('div')[3].innerText;
    }

    const r = (n, prec = 2) => n.toFixed(prec);

    expand();

    let sound = false;
    console.log('-'.repeat(80));
    const data = pairs.map(pair => {
      try {
        const div = [...document.querySelectorAll('div')].filter(d => d.innerHTML === pair)[0];
        const parent = div.parentNode.parentNode.parentNode;
        const [a, b] = pair.split(SEPARATOR)
        const da = getPooled(parent, a);
        const db = getPooled(parent, b);
        const sum = da + db;
        const geoSum = Math.sqrt(da * db) * 2;
        const ratio = da / db;
        const inef = Math.abs(1 - ratio) * 100;
        console.log(`${pair}: ${r(ratio, 4)} | sum: ${r(sum)} | geoSum: ${r(geoSum)} | inef: ${r(inef)}`);
        if (inef > 0.8) sound = true;
      } catch (e) { }
      // return [pair, sum, geoSum, ratio, inef];
    });
    // console.table(data);//, ['pair', 'sum', 'geoSum', 'ratio', 'inef']);
    sound && !silent && play();

  } catch (e) {
    console.error('cant read data');
  }
}

setInterval(loop, 1e4);
loop();