Files
hackerspace.sh/lib/classes-logic.ts
T
Moheeb Zara f3b05afe14 feat(classes): optional required-form gate at signup (waiver-on-file)
Pure signupFormEligibility (manager override bypasses) + 4 tests.
signUpForClass now: classes.manage override + sign-up-on-behalf
(targetMemberId), and a hard form gate -- if the class has a
required_form_id the member must have a form_submissions row on file
(checked via service client, since a class manager need not hold
forms.manage). create/updateClass validate the form is in-space and
published. listUpcomingSessions exposes required_form {title,url,
satisfied}. Manage UI: published-form picker on create/edit + a 'requires
form' badge. Member UI: shows the requirement, links to the form, and
replaces Sign up with 'Complete required form' until it is on file.
Mirrors the equipment cert-gate pattern.
2026-05-16 21:41:01 -07:00

115 lines
4.0 KiB
TypeScript

// Pure, dependency-free decision logic for the classes feature. No Supabase,
// no React, no Next. Unit-tested directly so capacity/waitlist/eligibility
// rules cannot silently drift.
export type SignupOutcome = 'registered' | 'waitlisted'
export type SessionTiming = 'upcoming' | 'in_progress' | 'past'
// A session-level capacity overrides the class default; null at both levels
// means unlimited.
export function effectiveCapacity(
sessionCapacity: number | null | undefined,
classCapacity: number | null | undefined,
): number | null {
if (sessionCapacity != null) return sessionCapacity
if (classCapacity != null) return classCapacity
return null
}
// Where a new signup lands given the effective capacity and how many are
// already registered (not counting waitlisted/cancelled).
export function computeSignupStatus(
capacity: number | null,
currentRegistered: number,
): SignupOutcome {
if (capacity == null) return 'registered'
return currentRegistered < capacity ? 'registered' : 'waitlisted'
}
function ms(value: string | null | undefined): number | null {
if (!value) return null
const t = new Date(value).getTime()
return Number.isNaN(t) ? null : t
}
export function sessionTiming(
startsAt: string,
endsAt: string | null | undefined,
now?: Date | string,
): SessionTiming {
const t = now == null ? Date.now() : new Date(now).getTime()
const start = ms(startsAt)
if (start == null) return 'upcoming'
const end = ms(endsAt) ?? start
if (t < start) return 'upcoming'
if (t > end) return 'past'
return 'in_progress'
}
export type SignupEligibility = { ok: true } | { ok: false; reason: string }
// Whether a member may newly sign up for a session.
export function canSignUp(input: {
sessionStatus: string
startsAt: string
endsAt?: string | null
now?: Date | string
}): SignupEligibility {
if (input.sessionStatus === 'cancelled') return { ok: false, reason: 'This session was cancelled.' }
if (input.sessionStatus === 'completed') return { ok: false, reason: 'This session is already completed.' }
if (sessionTiming(input.startsAt, input.endsAt, input.now) === 'past') {
return { ok: false, reason: 'This session has already ended.' }
}
return { ok: true }
}
// A class may require a form (waiver/intake) on file. Mirrors the equipment
// required-certification gate: the requirement is bypassed for a manager
// acting with override (e.g. signing a member up on their behalf). "On file"
// means the member has at least one completed submission of that form.
export function signupFormEligibility(input: {
requiresForm: boolean
memberHasForm: boolean
managerOverride: boolean
}): SignupEligibility {
if (input.requiresForm && !input.memberHasForm && !input.managerOverride) {
return { ok: false, reason: 'This class requires a form to be completed before you can sign up.' }
}
return { ok: true }
}
// When a registered member cancels and a seat frees, the earliest-signed-up
// waitlisted member is promoted. Returns that signup id, or null if there is
// no free seat or no one waiting.
export function pickPromotion(
signups: Array<{ id: string; status: string; signed_up_at: string }>,
capacity: number | null,
): string | null {
if (capacity == null) {
// Unlimited: anyone waitlisted (shouldn't normally happen) can move up;
// promote the earliest to be safe.
const waiting = signups
.filter(s => s.status === 'waitlisted')
.sort((a, b) => a.signed_up_at.localeCompare(b.signed_up_at))
return waiting[0]?.id ?? null
}
const registered = signups.filter(s => s.status === 'registered').length
if (registered >= capacity) return null
const waiting = signups
.filter(s => s.status === 'waitlisted')
.sort((a, b) => a.signed_up_at.localeCompare(b.signed_up_at))
return waiting[0]?.id ?? null
}
export const SESSION_STATUS_LABEL: Record<string, string> = {
scheduled: 'Scheduled',
cancelled: 'Cancelled',
completed: 'Completed',
}
export const SIGNUP_STATUS_LABEL: Record<string, string> = {
registered: 'Registered',
waitlisted: 'Waitlisted',
cancelled: 'Cancelled',
}