Function purchaseCredits

apps/sim/lib/billing/credits/purchase.ts:105–233

(params: PurchaseCreditsParams)

}

export async function purchaseCredits(params: PurchaseCreditsParams): Promise<PurchaseResult> {
  const { userId, amountDollars, requestId } = params

  if (amountDollars < 10 || amountDollars > 1000) {
    return { success: false, error: 'Amount must be between $10 and $1000' }
  }

  const canPurchase = await canPurchaseCredits(userId)
  if (!canPurchase) {
    return { success: false, error: 'Only Pro and Team users can purchase credits' }
  }

  const subscription = await getHighestPrioritySubscription(userId)
  if (!subscription || !subscription.stripeSubscriptionId) {
    return { success: false, error: 'No active subscription found' }
  }

  // Enterprise users must contact support
  if (isEnterprise(subscription.plan)) {
    return { success: false, error: 'Enterprise users must contact support to purchase credits' }
  }

  let entityType: 'user' | 'organization' = 'user'
  let entityId = userId

  // Org-scoped subs route credit purchases to the organization and must be authorized
  // by an org owner/admin. We've already rejected enterprise above.
  if (isOrgScopedSubscription(subscription, userId)) {
    const isAdmin = await isOrganizationOwnerOrAdmin(userId, subscription.referenceId)
    if (!isAdmin) {
      return { success: false, error: 'Only organization owners and admins can purchase credits' }
    }
    entityType = 'organization'
    entityId = subscription.referenceId
  }

  try {
    const stripe = requireStripeClient()

    const stripeSub = await stripe.subscriptions.retrieve(subscription.stripeSubscriptionId)
    const customerId = getCustomerId(stripeSub.customer)
    if (!customerId) {
      return { success: false, error: 'Subscription missing customer' }
    }

    const { paymentMethodId: defaultPaymentMethod } = await resolveDefaultPaymentMethod(
      stripe,
      subscription.stripeSubscriptionId,
      customerId
    )

    if (!defaultPaymentMethod) {
      return {
        success: false,
        error: 'No payment method on file. Please update your billing info.',
      }
    }