DataManipulator.ts

import { ServerRespond } from './DataStreamer';

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


export class DataManipulator {

  static generateRow(serverResponds: ServerRespond[]): Row {
    const priceABC = (serverResponds[0].top_ask.price + serverResponds[0].top_bid.price) / 2;
    const priceDEF = (serverResponds[1].top_ask.price + serverResponds[1].top_bid.price) / 2;
    const ratio = priceABC/priceDEF;
    const upper_bound = 1.027   // provided with decent ammount of triger alerts
    const lower_bound = 0.956
    return{
      price_abc : priceABC,
  price_def : priceDEF,
  ratio : ratio,
  upper_bound: upper_bound,
  lower_bound: lower_bound,
  trigger_alert : (ratio > upper_bound || ratio < lower_bound) ? ratio : undefined,
  timestamp: serverResponds[0].timestamp > serverResponds[1].timestamp ?
  serverResponds[0].timestamp : serverResponds[1].timestamp,
    }
  }
}