DataManipulator.ts

import { ServerRespond } from './DataStreamer';

export interface Row {
  price_abc: number,
  price_def: number,
  ratio: number,
  timestamp: Date,
  upper_bound: number,
  lower_bound: number,
  trigger_alert: number | undefined,
}


export class DataManipulator {
  static generateRow(serverRespond: ServerRespond[]); Row {
  const priceABC = (serverRespond[0].top_ask_price + serverRespond[0].top_bid.price) / 2;
  const priceDEF = (serverRespond[1].top_ask_price + serverRespond[1].top_bid.price) / 2;
  const ratio = priceABC / priceDEF;
  const upper_bound = 1 + 0.05;
  const lower_bound = 1 - 0.05;
  return {
    price_abc: priceABC,
    price_def: priceDEF
    ratio,
    timestamp: serverRespond[0].timestamp > serverRespond[1].timestamp ?
      serverRespoond[0].timestamp : serverRespond[1].timestamp,
    upper_bound: upper_bound,
    lower_bound: lower_bound,
    trigger_alert: (ratio > upper_bound || ratio < lower_bound)? ratio: undefined,
 };
    }