/**
 * The hold this machine sizes DXtrade and Vest legs for. Every person's
 * machine would otherwise size a like account in a like state to the same
 * position as everyone else's; each person's own draw (personHoldHours) puts
 * their sizes within ±PERSON_SIZE_SPREAD of the plan instead, the same for
 * all of their accounts and new each trade date.
 */

import { getSetting } from './db';
import { currentTradeDateCT, personHoldHours, DEFAULT_TARGET_HOLD_HOURS } from './trading-logic';

/** Who this machine trades for: the master's uuid for the person, else the
 *  instance name it reports under. */
function personKey(): string {
    return getSetting('instance_id') || getSetting('instance_name') || '';
}

/** The hold a DXtrade or Vest firm's legs are sized for on this machine today. */
export function sizingHoldHours(
    firm: { targetHoldHours?: number } | null | undefined,
    tradeDate: string = currentTradeDateCT(),
): number {
    return personHoldHours(firm?.targetHoldHours || DEFAULT_TARGET_HOLD_HOURS, personKey(), tradeDate);
}