// Server-side contribution config.
// Parallel to app/config/contributions.js but also hosts getHelcimPlanId,
// which is server-only (depends on runtime config).

export const CONTRIBUTION_PRESETS = [
  { amount: 0,  label: "I need support right now" },
  { amount: 5,  label: "I can contribute" },
  { amount: 15, label: "I can sustain the community" },
  { amount: 30, label: "I can support others too" },
  { amount: 50, label: "I want to sponsor multiple members" },
]

export const requiresPayment = (amount) => amount > 0

export const isValidContributionAmount = (amount) =>
  Number.isInteger(amount) && amount >= 0

export const getGuidanceLabel = (amount) => {
  if (amount === null || amount === undefined) return null
  const n = Number(amount)
  if (!Number.isFinite(n) || n < 0) return null
  const match = CONTRIBUTION_PRESETS.findLast(p => p.amount <= n)
  return match?.label ?? null
}

// Cadence-keyed plan-id lookup. Unrelated to the tier concept.
export function getHelcimPlanId(cadence) {
  const config = useRuntimeConfig()
  if (cadence === 'annual') return config.helcimAnnualPlanId || null
  return config.helcimMonthlyPlanId || null
}