import type { Confirmation, ConfirmationResult } from '@/types/confirmations'

/**
 * Map server-resolved confirmation payload to the shape used by the public form.
 * Submission handling must use only this — ConfirmationResolver on the backend is the source of truth.
 */
export function confirmationFromResult(result: ConfirmationResult): Confirmation {
  return {
    id: result.id ?? 0,
    formId: 0,
    name: '',
    type: result.type,
    enabled: true,
    showForm: result.showForm ?? false,
    message: result.message ?? '',
    url: result.url ?? '',
    page: '',
    pageUrl: result.pageUrl,
    isDefault: result.isDefault,
  }
}

/**
 * Returns the first enabled confirmation by list order (position, then id).
 * Builder/admin fallback only (e.g. Lite single-confirmation edit routing) — not for post-submit UX.
 */
export function getActiveConfirmation(confirmations: Confirmation[]): Confirmation | null {
  if (!confirmations?.length) {
    return null
  }

  const sorted = sortConfirmations(confirmations)
  return sorted.find((c) => c.enabled) ?? null
}

function sortConfirmations(confirmations: Confirmation[]): Confirmation[] {
  return [...confirmations].sort((a, b) => {
    const posA = a.position ?? 0
    const posB = b.position ?? 0
    if (posA !== posB) {
      return posA - posB
    }
    return (a.id ?? 0) - (b.id ?? 0)
  })
}