32 lines
1.1 KiB
JavaScript
32 lines
1.1 KiB
JavaScript
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/** Hours after which a stored price is considered stale for live refresh. */
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export const PRICE_STALE_HOURS = 24;
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/**
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* Resolve the unit price for a owned card row (foil-aware).
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* MTG: current_price = nonfoil USD, market_price = foil USD (Scryfall mapping).
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*
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* @param {{ currentPrice?: number | null, marketPrice?: number | null, isFoil?: boolean }} params
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* @returns {number | null}
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*/
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export function resolveUnitPrice({ currentPrice, marketPrice, isFoil = false }) {
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const current = currentPrice != null ? Number(currentPrice) : null;
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const market = marketPrice != null ? Number(marketPrice) : null;
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if (isFoil) {
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return market ?? current ?? null;
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}
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return current ?? market ?? null;
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}
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/**
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* @param {Date | string | null | undefined} pricesUpdatedAt
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* @returns {boolean}
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*/
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export function isPriceStale(pricesUpdatedAt) {
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if (!pricesUpdatedAt) return true;
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const updated = pricesUpdatedAt instanceof Date ? pricesUpdatedAt : new Date(pricesUpdatedAt);
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if (Number.isNaN(updated.getTime())) return true;
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const ageMs = Date.now() - updated.getTime();
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return ageMs > PRICE_STALE_HOURS * 60 * 60 * 1000;
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}
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