/**
 * Sasquatch Pro — pricing tiers + shared constants.
 * ─────────────────────────────────────────────────────────────────────────────
 * Pro is a Lightning "supporter pass" that unlocks Sasquatch's personal
 * assistant, action-drafting, priority model, and perks. Payment goes to the
 * platform Lightning address via a NIP-57 zap, and access is verified two ways:
 *
 *   1. STRONG (preferred): a kind-9735 zap receipt from the platform's Lightning
 *      provider, bound to the paying user's npub — unforgeable by the user.
 *   2. FALLBACK: a self-signed kind-32671 membership receipt (used only if the
 *      provider doesn't publish zap receipts), which references the payment so a
 *      future verifier can validate it retroactively.
 */

import type { NostrEvent } from '@nostrify/nostrify';

/** Platform Lightning address that receives Pro payments (same as the fee address). */
export { PLATFORM_LIGHTNING_ADDRESS as PRO_LIGHTNING_ADDRESS } from '@/lib/platform';

/** Proof of Pro sent to the AI proxy so its gate can re-verify server-side. */
export interface ProProof {
  receipts: NostrEvent[];
  grants: NostrEvent[];
}

export interface ProTier {
  id: string;
  label: string;
  days: number;
  sats: number;
  /** Marketing flag. */
  badge?: string;
  popular?: boolean;
}

/** The four supporter tiers. Kept deliberately small to avoid choice paralysis. */
export const PRO_TIERS: ProTier[] = [
  { id: '7d', label: '7 days', days: 7, sats: 2000, badge: 'Try it' },
  { id: '1m', label: '1 month', days: 30, sats: 5000 },
  { id: '3m', label: '3 months', days: 90, sats: 12000, badge: '20% off', popular: true },
  { id: '1y', label: '1 year', days: 365, sats: 36000, badge: 'Best value · 40% off' },
];

export function tierById(id: string): ProTier | undefined {
  return PRO_TIERS.find((t) => t.id === id);
}

/** Seconds in a day. */
export const DAY_SECONDS = 24 * 60 * 60;

/**
 * Owner-grant fallback (NIP-32 label). If the Lightning provider ever stops
 * publishing zap receipts, Pro can still be granted by the platform owner
 * publishing a kind-1985 label in this namespace, tagged to the user with an
 * `expiry` (unix seconds). Trusted because it is authored by an owner pubkey —
 * and unforgeable by the user, unlike the self-signed kind-32671 receipt.
 */
export const PRO_LABEL_NAMESPACE = 'org.skatespots.pro';
export const PRO_LABEL_VALUE = 'pro';