Paddy
3c4f3331d8
Jenkins Production Deployment
Reviewed-on: #8 Co-authored-by: Patrick Mueller <patrick@mueller-patrick.tech> Co-committed-by: Patrick Mueller <patrick@mueller-patrick.tech>
42 lines
2.1 KiB
TypeScript
42 lines
2.1 KiB
TypeScript
export interface EventTicketState {
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eventId: number;
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capacity: number | null;
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redemptionDeadline: Date | null;
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collectAddress: boolean;
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requireAddress: boolean;
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guestsUsed: number;
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spotsRemaining: number | null;
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}
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/**
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* Reads an event's voucher settings + live guest count within the caller's
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* connection/transaction. Absence of a settings row means uncapped/no
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* deadline/no address collection - the "absence over sentinels" convention
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* also used by the Feedback module.
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*
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* Pass forUpdate=true from inside the redeem transaction to lock the
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* settings row for the duration of that transaction, serializing concurrent
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* redemptions against the same event so the guestsUsed sum computed here
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* stays correct even under a last-spot race. Events with no settings row
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* (uncapped) don't need this - there's no cap to race against.
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*/
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export const getEventTicketState = async (conn: any, eventId: number, forUpdate = false): Promise<EventTicketState> => {
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const settingsQuery = `SELECT capacity, redemption_deadline, collect_address, require_address FROM event_ticket_settings WHERE event_id = ?${forUpdate ? ' FOR UPDATE' : ''}`;
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const settingsRows = await conn.query(settingsQuery, [eventId]);
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const capacity = settingsRows.length > 0 ? settingsRows[0].capacity : null;
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const redemptionDeadline = settingsRows.length > 0 ? settingsRows[0].redemption_deadline : null;
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const collectAddress = settingsRows.length > 0 ? !!settingsRows[0].collect_address : false;
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// Only meaningful when collectAddress is also true - the field isn't
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// shown/collected at all otherwise, so "required" is moot.
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const requireAddress = collectAddress && settingsRows.length > 0 ? !!settingsRows[0].require_address : false;
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const usedRows = await conn.query(
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"SELECT COALESCE(SUM(guest_count), 0) as used FROM redemptions WHERE event_id = ? AND status = 'ACTIVE'",
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[eventId]
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);
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const guestsUsed = Number(usedRows[0].used);
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const spotsRemaining = capacity === null ? null : Math.max(0, capacity - guestsUsed);
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return {eventId, capacity, redemptionDeadline, collectAddress, requireAddress, guestsUsed, spotsRemaining};
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};
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