import type { NostrEvent } from '@nostrify/nostrify';
import ngeohash from 'ngeohash';
import { countLeadingZeroBits } from '@/lib/pow';
import { parseCrewVideo } from '@/lib/videoEmbed';
import { isAdminPubkey } from '@/lib/admins';
import { isValidClinkOffer } from '@/lib/clink';
import { SPOT_FEATURE_KEYS } from '@/lib/labelKeys';

// Community relay for all skate-specific content (spots, events, coaches, shops, etc.)
// This ensures all users see the same content regardless of their personal relay settings
export const SKATE_RELAY = 'wss://relay.skate-spots.org';

// ─── Validation helpers ───────────────────────────────────────────────────────

/** Max lengths for user-supplied text fields */
const MAX_TITLE_LEN       = 100;
const MAX_DESCRIPTION_LEN = 3000;
const MAX_LOCATION_LEN    = 200;
// 1, not 2: a profile's title falls back to the user's display name, and a
// single-character display name would otherwise make the whole profile fail
// validation and silently vanish.
const MIN_TITLE_LEN       = 1;
const MIN_GEOHASH_LEN     = 4;  // below 4 chars = ~2500km precision, useless for a spot
const MAX_GEOHASH_LEN     = 12;

/**
 * Validates a geohash string.
 * - Must be 4–12 characters
 * - Must decode to real Earth coordinates (lat ±90, lng ±180)
 * - Must not be exactly 0,0 (null island — common bot artifact)
 * VPN/Tor users are unaffected: the geohash comes from the map pin, not the user's IP.
 */
function isValidGeohash(geohash: string | undefined): boolean {
  if (!geohash) return false;
  if (geohash.length < MIN_GEOHASH_LEN || geohash.length > MAX_GEOHASH_LEN) return false;
  try {
    const { latitude, longitude } = ngeohash.decode(geohash);
    if (latitude < -90 || latitude > 90) return false;
    if (longitude < -180 || longitude > 180) return false;
    // Reject "null island" (0°N 0°E — classic bot/placeholder artifact)
    if (latitude === 0 && longitude === 0) return false;
    return true;
  } catch {
    return false;
  }
}

function clampStr(s: string | undefined, max: number): string | undefined {
  if (!s) return s;
  return s.slice(0, max);
}

export const SKATE_SPOT_KIND = 30818; // Addressable event - editable per pubkey+kind+d-tag
export const SKATE_SHOP_KIND = 30017; // NIP-15 Stall (marketplace)
export const CALENDAR_EVENT_KIND = 31923;
export const CALENDAR_RSVP_KIND = 31925; // NIP-52 Calendar Event RSVP (accepted/tentative/declined)
export const EVENT_UPDATE_KIND = 7103; // Regular event - host broadcast/update pinned to a calendar event. SkateSpots-native.
export const SKATE_SKATER_KIND = 35000; // Skater profile — the app-native "I skate here" identity
export const SKATE_COACH_KIND = 35001;
export const SKATE_FILMER_KIND = 35002; // Skate filmer (video) profiles
export const SKATE_EDITOR_KIND = 35003; // Skate video editor profiles
export const SKATE_PHOTOGRAPHER_KIND = 35004; // Skate photographer profiles
export const SKATE_BUILDER_KIND = 35005; // Skate ramp / park builder profiles
export const SKATE_CREW_KIND = 35006; // Skate crews (community identity, map-anchored)
export const SKATE_ARTIST_KIND = 35007; // Designer / artist profiles (board graphics, logos, posters, merch)
export const SKATE_GRAFFITI_KIND = 35008; // Graffiti / mural artist profiles
export const SKATE_TATTOO_KIND = 35009; // Tattoo artist profiles
export const SKATE_TRAINER_KIND = 35010; // Physical trainer / physiotherapist profiles
export const SKATE_MUSICIAN_KIND = 35011; // Musician / band profiles (skaters who make music)
export const SKATE_JUDGE_KIND = 35012; // Skate judges (event officials)
export const SKATE_ORGANIZER_KIND = 35013; // Event organizers / hosts (jams, comps, meetups)
export const SKATE_BARBER_KIND = 35014; // Barbers / hairstylists (skater-friendly cuts)
export const SKATE_DESIGNER_KIND = 35015; // Clothing designers (custom clothes, team kits, apparel)
export const SKATE_TRANSPORT_KIND = 35016; // Transport / drivers (people, gear, cargo, air/land/sea)
export const MARKETPLACE_ITEM_KIND = 30402; // NIP-99 Classified Listings
export const SPOT_COLLECTION_KIND = 30003; // NIP-51 Bookmark sets for spot collections
export const SKATE_TOUR_KIND = 30823; // Local skate tours - guides offer to show hidden spots
export const SPOT_CHAT_KIND = 24899; // Ephemeral geohash-anchored local chat ("Spot Chat"). SkateSpots-native.
export const SASQUATCH_PRO_KIND = 32671; // Addressable "Sasquatch Pro" membership receipt (self-signed, references the zap payment). SkateSpots-native.
export const SPOT_STATUS_KIND = 2259; // Regular event - community "spot status report" (active/bust/skate-stopped/gone/closed). SkateSpots-native.
export const CREW_INVITE_KIND = 36229; // Addressable crew invitation — founder/admin invites a specific npub to a crew. SkateSpots-native.
export const CREW_JOIN_REQUEST_KIND = 31969; // Addressable crew join-request — a skater asks to join a crew (notifiable). SkateSpots-native.
export const CREW_ENDORSEMENT_KIND = 9087; // Regular event — an admin endorses ("vouches for") a join-request; the founder ratifies. SkateSpots-native.
export const COLLECTIVE_JOIN_REQUEST_KIND = 36387; // Addressable Lab-collective join-request — someone asks to join a Lab collective (studio/build team). Notifiable. SkateSpots-native.
export const NEWSLETTER_KIND = 30023; // NIP-23 long-form article — SkateSpots newsletter issues (admin-published, tagged `skatespotsnews`).
export const APP_DATA_KIND = 30078; // NIP-78 application-specific data (addressable). Used for the newsletter subscription marker.

/** `d`-tag identifier for the per-user newsletter subscription marker (kind 30078). */
export const NEWSLETTER_SUB_D = 'skatespots:newsletter:subscription';

/** `t`-tag every SkateSpots newsletter issue carries, so it's queryable at the relay level. */
export const NEWSLETTER_TAG = 'skatespotsnews';

/**
 * A SkateSpots newsletter issue published as a NIP-23 long-form article (kind
 * 30023) by an app admin. The `content` is Markdown; standard NIP-23 tags carry
 * the metadata (title, summary, image, published_at).
 */
export interface SkateNewsletterIssue {
  id: string;
  pubkey: string;
  /** NIP-23 `d` identifier — stable slug for the issue (e.g. "issue-6"). */
  identifier: string;
  title: string;
  summary?: string;
  image?: string;
  /** Markdown body. */
  content: string;
  /** Publication time (NIP-23 `published_at` if present, else created_at). */
  publishedAt: number;
  createdAt: number;
  event: NostrEvent;
}

/**
 * Parse + validate a newsletter issue. Only trusts issues authored by a
 * SkateSpots admin and tagged with NEWSLETTER_TAG — this is the trust boundary
 * that stops anyone from spamming the community's newsletter mailbox.
 */
export function parseNewsletterIssue(event: NostrEvent): SkateNewsletterIssue | null {
  if (event.kind !== NEWSLETTER_KIND) return null;
  if (!isAdminPubkey(event.pubkey)) return null;

  const tag = (name: string) => event.tags.find(([n]) => n === name)?.[1];

  const identifier = tag('d');
  const title = tag('title');
  if (!identifier || !title) return null;

  const isNewsletter = event.tags.some(([n, v]) => n === 't' && v === NEWSLETTER_TAG);
  if (!isNewsletter) return null;

  const publishedAtRaw = tag('published_at');
  const publishedAt = publishedAtRaw ? parseInt(publishedAtRaw, 10) : event.created_at;

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier,
    title,
    summary: tag('summary'),
    image: tag('image'),
    content: event.content ?? '',
    publishedAt: Number.isFinite(publishedAt) ? publishedAt : event.created_at,
    createdAt: event.created_at,
    event,
  };
}

/**
 * Lab provider entity type.
 * - `individual`: a single person (default).
 * - `collective`: a multi-person entity (crew, collective, or company). "Company"
 *   is presented as cosmetic sub-styling of a collective, not a distinct trust tier.
 */
export type EntityType = 'individual' | 'collective';

export function parseEntityType(value: string | undefined | null): EntityType {
  return value === 'collective' ? 'collective' : 'individual';
}

/**
 * NIP-32 label namespace used for collective membership attestations.
 * A member proves membership by publishing a kind 1985 label event with:
 *   ["L", "org.skatespots.membership"]
 *   ["l", "member", "org.skatespots.membership"]
 *   ["a", "<kind>:<founderPubkey>:<d-tag>"]   // the collective being joined
 */
export const MEMBERSHIP_LABEL_NAMESPACE = 'org.skatespots.membership';
export const MEMBERSHIP_LABEL_VALUE = 'member';

/**
 * Member visibility — an OPT-IN privacy choice a member makes on their OWN
 * membership attestation (kind 1985), so a member can be private even inside a
 * public crew. Stored as `["visibility", <level>]` on the member's own label.
 *
 *   - `public` (default / absent): the member shows everywhere — public crew
 *     page, member counts, crew-mate lists.
 *   - `crew`: the member is hidden from NON-members. To outsiders they render as
 *     an anonymous "hidden member" slot; confirmed crew-mates (and the founder)
 *     still see them normally. This is DISCOVERY privacy: the underlying `p` tag
 *     on the founder's crew event is still public on relays (that data belongs
 *     to the founder, not the member, so it can't be encrypted away) — but the
 *     app never surfaces the member's identity to non-members, and they are
 *     excluded from public-facing crew-mate discovery.
 *
 * We deliberately DON'T offer a "cryptographically hidden membership" tier: the
 * membership claim lives in the founder's event and cannot be encrypted by the
 * member, so promising crypto-privacy there would be misleading. `crew` is
 * honest app-level privacy; anyone wanting true anonymity should simply not
 * confirm membership publicly.
 */
export type MemberVisibility = 'public' | 'crew';

export const MEMBER_VISIBILITY_LABELS: Record<MemberVisibility, string> = {
  public: 'Public',
  crew: 'Crew only',
};

export const MEMBER_VISIBILITY_DESCRIPTIONS: Record<MemberVisibility, string> = {
  public: 'Anyone can see you in this crew — on the public crew page and in crew-mate discovery.',
  crew: "Only confirmed crew-mates and the founder see you here. To everyone else you appear as an anonymous “hidden member”. Note: this is app-level privacy — your membership tag still exists publicly on relays, it's just never shown to outsiders.",
};

/** Parse a member visibility value, defaulting to 'public'. */
export function parseMemberVisibility(v?: string): MemberVisibility {
  return v === 'crew' ? 'crew' : 'public';
}

/**
 * Lab vouches (NIP-32) — the community's anti-fraud lever. On an open protocol
 * anyone can publish a profile claiming to be a physio, artist, etc., so instead
 * of trying (and failing) to gatekeep, SkateSpots lets skaters CO-SIGN providers
 * they personally vouch for. A voucher publishes a kind-1985 label with their
 * OWN key referencing the provider's addressable coordinate. Vouches are counted
 * client-side and, crucially, weighted by the viewer's web-of-trust so a ring of
 * fake accounts vouching for each other carries no weight with real skaters.
 */
export const VOUCH_LABEL_NAMESPACE = 'org.skatespots.vouch';
export const VOUCH_LABEL_VALUE = 'vouch';

/**
 * Crew feed/chat moderation (NIP-32).
 *
 * A founder or delegated admin can hide a crew-feed post by publishing a kind
 * 1985 label with their OWN key:
 *   ["L", "org.skatespots.moderation"]
 *   ["l", "hidden", "org.skatespots.moderation"]
 *   ["e", <postId>]         // the moderated post
 *   ["a", <crewCoord>]      // scopes moderation to this crew
 * Clients hide the post only if the label's author is the crew founder or a
 * listed admin — so moderation power can't be forged by outsiders.
 */
export const MODERATION_LABEL_NAMESPACE = 'org.skatespots.moderation';
export const MODERATION_LABEL_HIDDEN = 'hidden';
/** Admin VOUCHES for the target (the positive counterpart to `hidden`). */
export const MODERATION_LABEL_VERIFIED = 'verified';
/**
 * UNDO: the admin retracted a previous verdict. Nothing is hidden or vouched —
 * the target goes back to neutral. Newest verdict wins, so this supersedes an
 * earlier `hidden`/`verified` label.
 */
export const MODERATION_LABEL_CLEARED = 'cleared';
/**
 * A moderator APPROVED a private-spot ownership claim. Tagged `["a", coord]` +
 * `["p", claimantPubkey]`; the claimant then finishes the claim (re-publishes
 * the spot under their key). Distinct from `verified` (which vouches for the
 * spot itself, not who owns it).
 */
export const MODERATION_LABEL_CLAIM_APPROVED = 'claim-approved';

/**
 * A claimant's own signed ownership claim (NIP-32 kind 1985). Kept in a SEPARATE
 * namespace from moderation so `useAdminModeration` never reads non-admin labels
 * as verdicts.
 */
export const SPOT_CLAIM_NAMESPACE = 'org.skatespots.spotclaim';
export const SPOT_CLAIM_LABEL = 'claim';

/** Extract member pubkeys (hex) claimed by a Lab profile via `p` tags. */
export function parseMemberPubkeys(event: NostrEvent): string[] {
  return event.tags
    .filter(([name, value]) => name === 'p' && /^[0-9a-f]{64}$/i.test(value ?? ''))
    .map(([, value]) => value.toLowerCase());
}

/**
 * Extract the admin pubkeys a collective delegates powers to.
 *
 * Admins are ordinary members whose `p` tag carries an `"admin"` role marker in
 * the 4th position: `["p", <pubkey>, <relay-hint?>, "admin"]`. Using a marker on
 * the standard `p` tag keeps admins visible to any client that reads members,
 * while letting SkateSpots grant them elevated *actions* (invite, moderate).
 *
 * Note: admins are delegated *powers*, not edit rights — only the founder (the
 * event author) can overwrite the addressable crew profile. Admins act with
 * their own keys.
 */
export function parseAdminPubkeys(event: NostrEvent): string[] {
  return event.tags
    .filter(
      ([name, value, , marker]) =>
        name === 'p' && /^[0-9a-f]{64}$/i.test(value ?? '') && marker === 'admin',
    )
    .map(([, value]) => value.toLowerCase());
}

/** All Lab provider kinds (The Lab service profiles). 35006 is crews. */
export const LAB_KINDS = [
  35001, 35002, 35003, 35004, 35005,
  35007, 35008, 35009, 35010, 35011, 35012, 35013, 35014, 35015, 35016,
] as const;

/**
 * "Pro" / featured status for Lab profiles and events.
 *
 * When a user pays the optional Pro/featured listing fee, the published event
 * carries a `["featured", "<unix-seconds-expiry>"]` tag. This is *self-attested*
 * (the app records payment and writes the tag) rather than cryptographically
 * verified against a real Lightning payment — the same trust level the rest of
 * the platform-fee flow already uses. A future enhancement could verify against
 * NIP-57 zap receipts to the platform Lightning address.
 */
export function parseFeaturedUntil(event: NostrEvent): number | undefined {
  const raw = event.tags.find(([name]) => name === 'featured')?.[1];
  if (!raw) return undefined;
  const ts = parseInt(raw, 10);
  if (isNaN(ts) || ts <= 0) return undefined;
  return ts; // unix seconds
}

/** Is a `featuredUntil` timestamp (unix seconds) still active right now? */
export function isFeaturedActive(featuredUntil: number | undefined): boolean {
  if (!featuredUntil) return false;
  return featuredUntil * 1000 > Date.now();
}

/**
 * A parsed addressable coordinate: `<kind>:<pubkey>:<d>`.
 */
export interface AddrCoordinate {
  kind: number;
  pubkey: string;
  identifier: string;
  /** The raw `kind:pubkey:d` string. */
  coord: string;
}

/** Parse an `a`-tag coordinate string (`kind:pubkey:d`) into its parts. */
export function parseAddrCoord(value: string | undefined | null): AddrCoordinate | null {
  if (!value) return null;
  const parts = value.split(':');
  if (parts.length < 3) return null;
  const kind = parseInt(parts[0], 10);
  const pubkey = parts[1];
  const identifier = parts.slice(2).join(':');
  if (isNaN(kind) || !/^[0-9a-f]{64}$/i.test(pubkey) || !identifier) return null;
  return { kind, pubkey: pubkey.toLowerCase(), identifier, coord: `${kind}:${pubkey.toLowerCase()}:${identifier}` };
}

/**
 * Extract the crew this Lab profile links to (its `a` tag pointing at a
 * kind-35006 crew coordinate). Only the first valid one is used.
 */
export function parseCrewRef(event: NostrEvent): string | undefined {
  for (const [name, value] of event.tags) {
    if (name !== 'a') continue;
    const c = parseAddrCoord(value);
    if (c && c.kind === SKATE_CREW_KIND) return c.coord;
  }
  return undefined;
}

/**
 * Extract the Lab profile coordinates a crew links to (its `a` tags pointing at
 * any Lab kind).
 */
export function parseLabRefs(event: NostrEvent): string[] {
  const refs: string[] = [];
  for (const [name, value] of event.tags) {
    if (name !== 'a') continue;
    const c = parseAddrCoord(value);
    if (c && (LAB_KINDS as readonly number[]).includes(c.kind)) refs.push(c.coord);
  }
  return refs;
}

// ─── Crew invitations (kind 36229) ─────────────────────────────────────────
//
// A structured, addressable invite from a crew's founder/admin to a specific
// person's pubkey. Addressable so re-inviting the same person replaces the old
// invite (one live invite per crew+invitee). The invite itself is public and
// carries nothing sensitive ("come join") — actual membership stays unforgeable
// via the founder's `p` tag + the invitee's own NIP-32 attestation.
//
//   kind: 36229
//   content: optional personal note from the inviter
//   tags:
//     ["d", "<crewCoord>:<inviteePubkey>"]  // unique per crew+invitee
//     ["p", "<inviteePubkey>"]              // recipient — queryable by them
//     ["a", "<crewCoord>"]                  // the crew (35006:pubkey:d)
//     ["crew_name", "<name>"]               // denormalized for notification UI
//     ["role", "member" | "admin"]          // proposed role (default member)
//     ["alt", "Crew invite: …"]

export interface CrewInvite {
  id: string;
  inviter: string;       // pubkey of founder/admin who sent it
  invitee: string;       // pubkey being invited
  crewCoord: string;     // 35006:pubkey:d
  crewName: string;
  role: 'member' | 'admin';
  note: string;          // optional personal message
  createdAt: number;
  event: NostrEvent;
}

export function parseCrewInvite(event: NostrEvent): CrewInvite | null {
  if (event.kind !== CREW_INVITE_KIND) return null;
  const invitee = event.tags.find(([n]) => n === 'p')?.[1];
  const crewCoord = event.tags.find(([n]) => n === 'a')?.[1];
  if (!invitee || !crewCoord) return null;
  const c = parseAddrCoord(crewCoord);
  if (!c || c.kind !== SKATE_CREW_KIND) return null;
  const role = event.tags.find(([n]) => n === 'role')?.[1] === 'admin' ? 'admin' : 'member';
  return {
    id: event.id,
    inviter: event.pubkey,
    invitee,
    crewCoord,
    crewName: event.tags.find(([n]) => n === 'crew_name')?.[1] ?? 'a crew',
    role,
    note: event.content.slice(0, 500),
    createdAt: event.created_at,
    event,
  };
}

/** Build the deterministic d-tag identifier for a crew invite. */
export function crewInviteD(crewCoord: string, inviteePubkey: string): string {
  return `${crewCoord}:${inviteePubkey}`;
}

/**
 * A structured crew join-request (kind 31969) — a skater asks to join a crew.
 * Public and addressable (keyed by crew + requester, so re-requesting replaces),
 * `p`-tagged to the founder + admins so their clients can surface it as a
 * notification with a one-click "Add to crew". Carries nothing sensitive — just
 * an optional note.
 */
export interface CrewJoinRequest {
  id: string;
  requester: string;     // pubkey asking to join
  crewCoord: string;     // 35006:pubkey:d
  crewName: string;
  note: string;          // optional personal message
  /** Founder + admin pubkeys this request is addressed to (from `p` tags). */
  recipients: string[];
  createdAt: number;
  event: NostrEvent;
}

export function parseCrewJoinRequest(event: NostrEvent): CrewJoinRequest | null {
  if (event.kind !== CREW_JOIN_REQUEST_KIND) return null;
  const crewCoord = event.tags.find(([n]) => n === 'a')?.[1];
  if (!crewCoord) return null;
  const c = parseAddrCoord(crewCoord);
  if (!c || c.kind !== SKATE_CREW_KIND) return null;
  const recipients = event.tags
    .filter(([n, v]) => n === 'p' && /^[0-9a-f]{64}$/i.test(v ?? ''))
    .map(([, v]) => v.toLowerCase());
  return {
    id: event.id,
    requester: event.pubkey,
    crewCoord,
    crewName: event.tags.find(([n]) => n === 'crew_name')?.[1] ?? 'a crew',
    note: event.content.slice(0, 500),
    recipients,
    createdAt: event.created_at,
    event,
  };
}

/** Deterministic d-tag for a join-request: crew coord + requester. */
export function crewJoinRequestD(crewCoord: string, requesterPubkey: string): string {
  return `${crewCoord}:${requesterPubkey}`;
}

/**
 * A join-request to a Lab COLLECTIVE (studio / build team / etc.) — someone
 * asks to be added to the collective's roster. Mirrors the crew join-request:
 * addressable (keyed by collective + requester so re-requesting replaces),
 * `p`-tagged to the collective owner so it surfaces as a notification. The owner
 * adds the member via their normal Lab-profile editor (only they can edit their
 * own event), so there's no forged-membership risk.
 */
export interface CollectiveJoinRequest {
  id: string;
  requester: string;       // pubkey asking to join
  collectiveCoord: string; // e.g. 35003:pubkey:d
  collectiveName: string;
  note: string;            // optional personal message
  recipients: string[];    // owner pubkey(s) addressed (from `p` tags)
  createdAt: number;
  event: NostrEvent;
}

/** Lab craft kinds that can be collectives (all of them carry entityType). */
const COLLECTIVE_CAPABLE_KINDS = new Set<number>([
  SKATE_COACH_KIND, SKATE_FILMER_KIND, SKATE_EDITOR_KIND, SKATE_PHOTOGRAPHER_KIND,
  SKATE_BUILDER_KIND, SKATE_ARTIST_KIND, SKATE_GRAFFITI_KIND, SKATE_TATTOO_KIND,
  SKATE_TRAINER_KIND, SKATE_MUSICIAN_KIND, SKATE_JUDGE_KIND,
  SKATE_DESIGNER_KIND,
]);

export function parseCollectiveJoinRequest(event: NostrEvent): CollectiveJoinRequest | null {
  if (event.kind !== COLLECTIVE_JOIN_REQUEST_KIND) return null;
  const collectiveCoord = event.tags.find(([n]) => n === 'a')?.[1];
  if (!collectiveCoord) return null;
  const c = parseAddrCoord(collectiveCoord);
  if (!c || !COLLECTIVE_CAPABLE_KINDS.has(c.kind)) return null;
  const recipients = event.tags
    .filter(([n, v]) => n === 'p' && /^[0-9a-f]{64}$/i.test(v ?? ''))
    .map(([, v]) => v.toLowerCase());
  return {
    id: event.id,
    requester: event.pubkey,
    collectiveCoord,
    collectiveName: event.tags.find(([n]) => n === 'collective_name')?.[1] ?? 'a collective',
    note: event.content.slice(0, 500),
    recipients,
    createdAt: event.created_at,
    event,
  };
}

/** Deterministic d-tag for a collective join-request: coord + requester. */
export function collectiveJoinRequestD(collectiveCoord: string, requesterPubkey: string): string {
  return `${collectiveCoord}:${requesterPubkey}`;
}

/**
 * An admin's endorsement of a join-request (kind 9087). Since only the founder
 * can edit the crew roster, an admin can't add a member directly — but they can
 * publicly *vouch* for a request. The founder sees these endorsements on the
 * request card and ratifies with one click. Public + `p`-tagged to the founder
 * so it surfaces in their bell as a stronger signal.
 */
export interface CrewEndorsement {
  id: string;
  endorser: string;      // admin pubkey who vouched
  requester: string;     // pubkey being vouched for
  requestId: string;     // the join-request event id being endorsed
  crewCoord: string;     // 35006:pubkey:d
  note: string;          // optional "why"
  createdAt: number;
  event: NostrEvent;
}

export function parseCrewEndorsement(event: NostrEvent): CrewEndorsement | null {
  if (event.kind !== CREW_ENDORSEMENT_KIND) return null;
  const requestId = event.tags.find(([n]) => n === 'e')?.[1];
  const crewCoord = event.tags.find(([n]) => n === 'a')?.[1];
  const requester = event.tags.find(([n, , , role]) => n === 'p' && role === 'requester')?.[1]
    ?? event.tags.find(([n]) => n === 'p')?.[1];
  if (!requestId || !crewCoord || !requester) return null;
  const c = parseAddrCoord(crewCoord);
  if (!c || c.kind !== SKATE_CREW_KIND) return null;
  if (!/^[0-9a-f]{64}$/i.test(requester)) return null;
  return {
    id: event.id,
    endorser: event.pubkey,
    requester: requester.toLowerCase(),
    requestId,
    crewCoord,
    note: event.content.slice(0, 300),
    createdAt: event.created_at,
    event,
  };
}

/**
 * Validate a CLINK Offer code (`noffer1…`) — a Nostr-native, self-custodial
 * static payment code (see https://github.com/shocknet/CLINK, kind 21001).
 * Full **bech32 + TLV** validation (checksum included) lives in
 * `@/lib/clink`; a bare regex used to accept typo'd codes.
 */
export function isValidNoffer(value: string | undefined | null): value is string {
  return isValidClinkOffer(value);
}

/**
 * Validate a Bitcoin Silent Payment address (BIP-352). Mainnet addresses use
 * the `sp1` human-readable prefix and are bech32m-encoded (~116 chars for the
 * standard 66-byte payload). We validate the prefix + charset + rough length;
 * the app does not derive outputs — it displays the address for others to pay.
 */
export function isValidSilentPayment(value: string | undefined | null): value is string {
  if (!value) return false;
  const v = value.trim().toLowerCase();
  // sp1 (mainnet) or tsp1 (testnet), followed by bech32 charset, long payload.
  return /^(t?sp)1[023456789acdefghjklmnpqrstuvwxyz]{100,}$/.test(v);
}

/**
 * Validate a Lightning address (LUD-16 / lud16) — an email-like `user@domain`.
 */
export function isValidLightningAddress(value: string | undefined | null): value is string {
  if (!value) return false;
  const normalized = value.trim().replace(/^lightning:\/\//i, '').replace(/^lightning:/i, '');
  return /^[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,}$/i.test(normalized);
}

// ─── Skater profile (kind 35000) ───────────────────────────────────────────
// The app-native identity that makes a Nostr pubkey a *discoverable SkateSpots
// skater*. Publishing this (opt-in) is what lets someone appear in the /skaters
// directory — a plain kind-0 profile is NOT enough (that's the anti-spam wall).

export type SkaterStance = 'regular' | 'goofy';
export type SkaterStyle = 'street' | 'park' | 'vert' | 'transition' | 'bowl' | 'cruising' | 'downhill' | 'freestyle' | 'ledges' | 'stairs' | 'diy';
export type SkaterLevel = 'grom' | 'intermediate' | 'advanced' | 'ripper';

export const SKATER_STANCES: Record<SkaterStance, { label: string; labelKey: string; emoji: string }> = {
  regular: { label: 'Regular', labelKey: 'skaterLabelsUi.stance.regular', emoji: '🛹' },
  goofy: { label: 'Goofy', labelKey: 'skaterLabelsUi.stance.goofy', emoji: '🤙' },
};

export const SKATER_STYLES: Record<SkaterStyle, { label: string; labelKey: string; emoji: string }> = {
  street: { label: 'Street', labelKey: 'skaterLabelsUi.style.street', emoji: '🛹' },
  park: { label: 'Park', labelKey: 'skaterLabelsUi.style.park', emoji: '🏞️' },
  vert: { label: 'Vert', labelKey: 'skaterLabelsUi.style.vert', emoji: '📐' },
  transition: { label: 'Transition', labelKey: 'skaterLabelsUi.style.transition', emoji: '🌊' },
  bowl: { label: 'Bowl', labelKey: 'skaterLabelsUi.style.bowl', emoji: '🥣' },
  cruising: { label: 'Cruising', labelKey: 'skaterLabelsUi.style.cruising', emoji: '🛴' },
  downhill: { label: 'Downhill', labelKey: 'skaterLabelsUi.style.downhill', emoji: '⛰️' },
  freestyle: { label: 'Freestyle', labelKey: 'skaterLabelsUi.style.freestyle', emoji: '🕺' },
  ledges: { label: 'Ledges', labelKey: 'skaterLabelsUi.style.ledges', emoji: '🧱' },
  stairs: { label: 'Stairs', labelKey: 'skaterLabelsUi.style.stairs', emoji: '🪜' },
  diy: { label: 'DIY', labelKey: 'skaterLabelsUi.style.diy', emoji: '🔨' },
};

export const SKATER_LEVELS: Record<SkaterLevel, { label: string; labelKey: string; emoji: string; color: string }> = {
  grom: { label: 'Grom', labelKey: 'skaterLabelsUi.level.grom', emoji: '🌱', color: '#22c55e' },
  intermediate: { label: 'Intermediate', labelKey: 'skaterLabelsUi.level.intermediate', emoji: '⚡', color: '#3b82f6' },
  advanced: { label: 'Advanced', labelKey: 'skaterLabelsUi.level.advanced', emoji: '🔥', color: '#f59e0b' },
  ripper: { label: 'Ripper', labelKey: 'skaterLabelsUi.level.ripper', emoji: '👑', color: '#ff0040' },
};

/** The `t` marker tag that identifies a SkateSpots skater profile. */
export const SKATER_TAG = 'skateskater';

export interface Skater {
  id: string;
  pubkey: string;
  identifier: string;
  title: string; // display name at publish time
  bio: string;
  location?: string;
  geohash?: string;
  image?: string;
  stance?: SkaterStance;
  styles: SkaterStyle[]; // preferred terrain/disciplines
  level?: SkaterLevel;
  customLevel?: string; // free-text level when none of the presets fit
  yearsSkating?: string;
  homeSpot?: string; // freeform name, or the title of a linked spot
  homeSpotRef?: string; // `a` tag coordinate (`30818:pubkey:d`) when linked to a real mapped spot
  instagram?: string;
  website?: string;
  createdAt: number;
  event: NostrEvent;
}

export function parseSkater(event: NostrEvent): Skater | null {
  if (event.kind !== SKATE_SKATER_KIND) return null;
  // Must carry the skater marker tag — this is the discovery gate.
  if (!event.tags.some(([n, v]) => n === 't' && v === SKATER_TAG)) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];
  if (!d || !title) return null;

  const tag = (name: string) => event.tags.find(([n]) => n === name)?.[1];
  const knownStyles = Object.keys(SKATER_STYLES) as SkaterStyle[];
  const styles = event.tags
    .filter(([n, v]) => n === 't' && (knownStyles as string[]).includes(v))
    .map(([, v]) => v as SkaterStyle);

  const stance = tag('stance') as SkaterStance | undefined;
  const level = tag('level') as SkaterLevel | undefined;

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, 120),
    bio: event.content.slice(0, 2000),
    location: tag('location'),
    geohash: tag('g'),
    image: tag('image'),
    stance: stance && SKATER_STANCES[stance] ? stance : undefined,
    styles,
    level: level && SKATER_LEVELS[level] ? level : undefined,
    customLevel: tag('level_custom')?.slice(0, 40),
    yearsSkating: tag('years'),
    homeSpot: tag('home_spot'),
    homeSpotRef: event.tags.find(([n, v]) => n === 'a' && v?.startsWith(`${SKATE_SPOT_KIND}:`))?.[1],
    instagram: tag('instagram'),
    website: tag('website'),
    createdAt: event.created_at,
    event,
  };
}

export interface SkateSpot {
  id: string;
  pubkey: string;
  identifier: string;
  title: string;
  description: string;
  geohash: string;
  location?: string;
  images: string[];
  category?: string; // Primary category: street, park, diy, plaza
  tags: string[]; // Freeform tags (features, surfaces, vibes)
  types: string[]; // Legacy - combined category + tags for backwards compat
  accessType?: 'public' | 'private' | 'locals';
  /** Weather-protection level: outdoor (default) | partial | covered | indoor. */
  shelter?: 'outdoor' | 'partial' | 'covered' | 'indoor';
  contactInfo?: string;
  createdAt: number;
  /** If this spot is a claimed version of another, the ORIGINAL coordinate (`30818:pubkey:d`). */
  claimedFrom?: string;
  /** Claim provenance: `abandoned` | `transfer` | `private-approved`. */
  claimReason?: string;
  event: NostrEvent;
}

export interface SkateShop {
  id: string;
  pubkey: string;
  identifier: string;
  name: string;
  description: string;
  geohash: string;
  location?: string;
  images: string[];
  phone?: string;
  email?: string;
  website?: string;
  instagram?: string;
  hours?: string;
  noffer?: string; // Optional CLINK Offer code (noffer1...) for self-custodial payments
  nip05?: string;  // Shop NIP-05 identifier (first handle; verified against the owner pubkey)
  nip05s: string[]; // ALL shop NIP-05 handles (each verified against the owner pubkey)
  createdAt: number;
  event: NostrEvent;
}

export interface SkateEvent {
  id: string;
  pubkey: string;
  identifier: string;
  title: string;
  description: string;
  start: number;
  end?: number;
  geohash?: string;
  location?: string;
  image?: string;
  types: string[];
  featuredUntil?: number; // Featured event listing expiry (unix seconds), if paid
  sponsors?: EventSponsor[];
  createdAt: number;
  event: NostrEvent;
}

/** Event sponsor (mirrors TourSponsor). Rendered as a logo strip on the event. */
export interface EventSponsor {
  name: string;
  logo?: string;
  url?: string;
  tier?: 'title' | 'gold' | 'silver' | 'partner';
}

/** Sponsor tier display metadata (ordering + label). */
export const EVENT_SPONSOR_TIERS: Record<
  NonNullable<EventSponsor['tier']>,
  { label: string; labelKey: string; order: number }
> = {
  title: { label: 'Title Sponsor', labelKey: 'skaterLabelsUi.sponsor.title', order: 0 },
  gold: { label: 'Gold', labelKey: 'skaterLabelsUi.sponsor.gold', order: 1 },
  silver: { label: 'Silver', labelKey: 'skaterLabelsUi.sponsor.silver', order: 2 },
  partner: { label: 'Partner', labelKey: 'skaterLabelsUi.sponsor.partner', order: 3 },
};

export interface FoodSpot {
  id: string;
  name: string;
  lat: number;
  lng: number;
  type: string;
  cuisine?: string;
  address?: string;
  phone?: string;
  website?: string;
  openingHours?: string;
  distance?: number;
}

export function parseSkateSpot(event: NostrEvent): SkateSpot | null {
  if (event.kind !== SKATE_SPOT_KIND) return null;

  // Must have 'skatespot' tag to be identified as a spot event
  const hasSkateSpotTag = event.tags.some(([name, value]) => name === 't' && value === 'skatespot');
  if (!hasSkateSpotTag) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];

  if (!d || !title || !geohash) return null;

  // Validate title length
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  // Validate geohash — rejects fake/ocean/bot coords, VPN/Tor unaffected
  if (!isValidGeohash(geohash)) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);

  // Support both 'image' (old) and 'imeta' (new, NIP-92) tags
  const imageTags = event.tags.filter(([name]) => name === 'image').map(([, url]) => url);
  const imetaTags = event.tags
    .filter(([name]) => name === 'imeta')
    .map((tag) => {
      // imeta format: ['imeta', 'url https://...', 'm image/jpeg', ...]
      const urlPart = tag.find((part) => part.startsWith('url '));
      return urlPart ? urlPart.replace('url ', '') : null;
    })
    .filter(Boolean) as string[];

  const images = [...imageTags, ...imetaTags];

  // Get category from dedicated tag (new format)
  const category = event.tags.find(([name]) => name === 'category')?.[1];

  // Get all t tags except 'skatespot'
  const allTags = event.tags
    .filter(([name, value]) => name === 't' && value !== 'skatespot')
    .map(([, value]) => value)
    .filter(Boolean) as string[];

  // Separate category-level tags (street, park, diy, plaza) from feature tags
  const categoryValues = ['street', 'park', 'diy', 'plaza', 'transition'];
  const legacyCategory = allTags.find(t => categoryValues.includes(t));
  const tags = allTags.filter(t => !categoryValues.includes(t));

  // types is legacy - combine category + tags for backwards compat
  const types = allTags;

  const accessType = event.tags.find(([name]) => name === 'access')?.[1] as 'public' | 'private' | 'locals' | undefined;

  // Shelter / weather-protection level. Accept only known values; anything else
  // (or absent) falls back to undefined so the UI can treat it as outdoor.
  const shelterRaw = event.tags.find(([name]) => name === 'shelter')?.[1];
  const shelter = (['outdoor', 'partial', 'covered', 'indoor'] as const).includes(
    shelterRaw as 'outdoor' | 'partial' | 'covered' | 'indoor',
  )
    ? (shelterRaw as 'outdoor' | 'partial' | 'covered' | 'indoor')
    : undefined;

  const contactInfo = event.tags.find(([name]) => name === 'contact')?.[1];
  const claimedFromRaw = event.tags.find(([name]) => name === 'claim-from')?.[1];
  const claimReason = event.tags.find(([name]) => name === 'claim-reason')?.[1];

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    description: event.content.slice(0, MAX_DESCRIPTION_LEN),
    geohash,
    location,
    images,
    category: category || legacyCategory,
    tags,
    types,
    accessType,
    shelter,
    contactInfo: clampStr(contactInfo, 200),
    // Only a coordinate is a usable provenance pointer; legacy events stored the
    // original author's pubkey, which is too ambiguous to resolve — ignore it.
    claimedFrom: claimedFromRaw?.startsWith(`${SKATE_SPOT_KIND}:`) ? claimedFromRaw : undefined,
    claimReason: clampStr(claimReason, 40),
    createdAt: event.created_at,
    event,
  };
}

// ─── Spot Status Reports (kind 2259) ──────────────────────────────────────────

/**
 * Possible physical states of a spot, reported by the community.
 * Ordered roughly best → worst for display purposes.
 */
export const SPOT_STATUS_VALUES = [
  'active',        // 🟢 Good to go
  'bust',          // 🟡 Heavy kick-out risk / security
  'skate_stopped', // 🟠 Knobbed / capped but partially skateable
  'closed',        // ⚪ Temporarily closed (construction / event)
  'gone',          // 🔴 Demolished / paved over / no longer exists
] as const;

export type SpotStatusValue = (typeof SPOT_STATUS_VALUES)[number];

export interface SpotStatusReport {
  id: string;
  pubkey: string;
  /** Coordinate of the spot this report references: `30818:pubkey:dtag` */
  spotRef: string;
  status: SpotStatusValue;
  /** Optional freeform note from the reporter */
  note: string;
  createdAt: number;
  event: NostrEvent;
}

const MAX_STATUS_NOTE_LEN = 500;

/** Type guard for a valid spot status value. */
export function isSpotStatusValue(value: string): value is SpotStatusValue {
  return (SPOT_STATUS_VALUES as readonly string[]).includes(value);
}

/**
 * Parse a kind 2259 event into a SpotStatusReport.
 * Requires:
 *  - an `a` tag referencing a skate spot (`30818:pubkey:dtag`)
 *  - a `status` tag holding one of SPOT_STATUS_VALUES
 */
export function parseSpotStatusReport(event: NostrEvent): SpotStatusReport | null {
  if (event.kind !== SPOT_STATUS_KIND) return null;

  const spotRef = event.tags.find(([name]) => name === 'a')?.[1];
  if (!spotRef || !spotRef.startsWith(`${SKATE_SPOT_KIND}:`)) return null;

  const status = event.tags.find(([name]) => name === 'status')?.[1];
  if (!status || !isSpotStatusValue(status)) return null;

  return {
    id: event.id,
    pubkey: event.pubkey,
    spotRef,
    status,
    note: clampStr(event.content, MAX_STATUS_NOTE_LEN) ?? '',
    createdAt: event.created_at,
    event,
  };
}

export function parseSkateShop(event: NostrEvent): SkateShop | null {
  if (event.kind !== SKATE_SHOP_KIND) return null;

  // Must have 'skateshop' tag to be identified as a shop event
  const hasShopTag = event.tags.some(([name, value]) => name === 't' && value === 'skateshop');
  if (!hasShopTag) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const name = event.tags.find(([name]) => name === 'name')?.[1];
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];

  if (!d || !name || !geohash) return null;

  // Validate name length
  if (name.trim().length < MIN_TITLE_LEN || name.length > MAX_TITLE_LEN) return null;

  // Validate geohash
  if (!isValidGeohash(geohash)) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);

  // Support both 'image' and 'imeta' tags
  const imageTags = event.tags.filter(([name]) => name === 'image').map(([, url]) => url);
  const imetaTags = event.tags
    .filter(([name]) => name === 'imeta')
    .map((tag) => {
      const urlPart = tag.find((part) => part.startsWith('url '));
      return urlPart ? urlPart.replace('url ', '') : null;
    })
    .filter(Boolean) as string[];

  const images = [...imageTags, ...imetaTags];

  const phone = event.tags.find(([name]) => name === 'phone')?.[1];
  const email = event.tags.find(([name]) => name === 'email')?.[1];
  const website = event.tags.find(([name]) => name === 'website')?.[1];
  const instagram = event.tags.find(([name]) => name === 'instagram')?.[1];
  const hours = event.tags.find(([name]) => name === 'hours')?.[1];
  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];
  const noffer = isValidNoffer(nofferTag) ? nofferTag : undefined;
  // Shop NIP-05 handles (mirrors crews): repeatable, verified against the owner.
  const nip05s = [...new Set(
    event.tags
      .filter(([tagName, value]) => tagName === 'nip05' && !!value?.trim())
      .map(([, value]) => value.trim().toLowerCase())
      .filter((v) => /^[a-z0-9\-_.]+@[a-z0-9.-]+\.[a-z]{2,}$/.test(v)),
  )].slice(0, 5);
  const nip05 = nip05s[0];

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    name: name.slice(0, MAX_TITLE_LEN),
    description: event.content.slice(0, MAX_DESCRIPTION_LEN),
    geohash,
    location,
    images,
    phone,
    email,
    website,
    instagram,
    hours,
    noffer,
    nip05,
    nip05s,
    createdAt: event.created_at,
    event,
  };
}

export function parseSkateEvent(event: NostrEvent): SkateEvent | null {
  if (event.kind !== CALENDAR_EVENT_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];
  const start = event.tags.find(([name]) => name === 'start')?.[1];

  // Must have skateboarding tag
  const hasSkateboardingTag = event.tags.some(
    ([name, value]) => name === 't' && value === 'skateboarding'
  );

  if (!d || !title || !start || !hasSkateboardingTag) return null;

  // Reject a malformed timestamp — NaN in `start` poisons sorting and date
  // rendering for the whole feed.
  const startNum = Number(start);
  if (!Number.isFinite(startNum) || startNum <= 0) return null;

  // Validate title length
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  const end = event.tags.find(([name]) => name === 'end')?.[1];
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);
  const image = event.tags.find(([name]) => name === 'image')?.[1];

  const types = event.tags
    .filter(([name, value]) => name === 't' && value !== 'skateboarding')
    .map(([, value]) => value)
    .filter(Boolean) as string[];

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    description: event.content.slice(0, MAX_DESCRIPTION_LEN),
    start: startNum,
    end: end && Number.isFinite(Number(end)) ? Number(end) : undefined,
    geohash,
    location,
    image,
    types,
    featuredUntil: parseFeaturedUntil(event),
    sponsors: parseEventSponsors(event),
    createdAt: event.created_at,
    event,
  };
}

/**
 * Parse event sponsors from tags. Format (mirrors tours):
 * ["sponsor", "<tier>", "<name>", "<logo-url>", "<website-url>"]
 */
export function parseEventSponsors(event: NostrEvent): EventSponsor[] | undefined {
  const tags = event.tags.filter(([name]) => name === 'sponsor');
  if (tags.length === 0) return undefined;

  const validTiers = new Set(['title', 'gold', 'silver', 'partner']);
  const sponsors: EventSponsor[] = [];
  for (const tag of tags) {
    const name = clampStr(tag[2], MAX_TITLE_LEN)?.trim();
    if (!name) continue;
    const tier = validTiers.has(tag[1]) ? (tag[1] as EventSponsor['tier']) : 'partner';
    sponsors.push({
      tier,
      name,
      logo: tag[3] || undefined,
      url: tag[4] || undefined,
    });
  }
  if (sponsors.length === 0) return undefined;
  // Sort by tier importance.
  return sponsors.sort(
    (a, b) =>
      EVENT_SPONSOR_TIERS[a.tier ?? 'partner'].order -
      EVENT_SPONSOR_TIERS[b.tier ?? 'partner'].order,
  );
}

/** Build sponsor tags for publishing an event. */
export function eventSponsorTags(sponsors: EventSponsor[]): string[][] {
  return sponsors
    .filter((s) => s.name.trim())
    .map((s) => [
      'sponsor',
      s.tier ?? 'partner',
      s.name.trim(),
      s.logo?.trim() ?? '',
      s.url?.trim() ?? '',
    ]);
}

// ─── NIP-52 Calendar Event RSVP (kind 31925) ────────────────────────────────

export type RsvpStatus = 'accepted' | 'tentative' | 'declined';

export interface EventRsvp {
  id: string;
  /** The pubkey of the person RSVP'ing. */
  pubkey: string;
  /** The RSVP's own `d` identifier. */
  identifier: string;
  /** Coordinate of the calendar event being responded to ("31923:pubkey:d"). */
  eventCoord: string;
  status: RsvpStatus;
  /** Optional free-form note. */
  note?: string;
  createdAt: number;
  event: NostrEvent;
}

/**
 * Parse a NIP-52 RSVP (kind 31925). Requires a valid `a` coordinate to a
 * calendar event and a recognized `status`.
 */
export function parseEventRsvp(event: NostrEvent): EventRsvp | null {
  if (event.kind !== CALENDAR_RSVP_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const eventCoord = event.tags.find(([name]) => name === 'a')?.[1];
  const status = event.tags.find(([name]) => name === 'status')?.[1] as RsvpStatus | undefined;

  if (!d || !eventCoord || !status) return null;
  if (!['accepted', 'tentative', 'declined'].includes(status)) return null;
  // Must reference a calendar event coordinate.
  if (!eventCoord.startsWith(`${CALENDAR_EVENT_KIND}:`)) return null;

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    eventCoord,
    status,
    note: event.content?.slice(0, MAX_DESCRIPTION_LEN) || undefined,
    createdAt: event.created_at,
    event,
  };
}

// ─── Event Update (kind 7103) — host broadcast pinned to a calendar event ────

export type EventUpdateKind = 'update' | 'reschedule' | 'relocation' | 'cancelled';

export interface EventUpdate {
  id: string;
  pubkey: string;
  /** Coordinate of the calendar event ("31923:pubkey:d"). */
  eventCoord: string;
  /** The calendar event's raw id, if referenced. */
  eventId?: string;
  message: string;
  /** Category of update, for iconography / emphasis. */
  updateKind: EventUpdateKind;
  /**
   * Who this update is authoritatively from, relative to the event it targets:
   * - 'host'  → signed by the event's own author (coordinate pubkey)
   * - 'admin' → signed by a SkateSpots admin acting as a moderator
   * Any other author is untrusted and MUST be discarded by callers (a random
   * npub could otherwise forge a fake "CANCELLED" update).
   */
  authorRole: 'host' | 'admin';
  createdAt: number;
  event: NostrEvent;
}

/**
 * Parse a host Event Update (kind 7103). Requires an `a` coordinate to a
 * calendar event and non-empty content.
 *
 * SECURITY: the update is only trusted if its author is either the event's own
 * host (derived from the `a` coordinate) or a SkateSpots admin. Updates from any
 * other pubkey return `null` so a stranger can't spoof a cancellation.
 */
export function parseEventUpdate(event: NostrEvent): EventUpdate | null {
  if (event.kind !== EVENT_UPDATE_KIND) return null;

  const eventCoord = event.tags.find(([name]) => name === 'a')?.[1];
  if (!eventCoord || !eventCoord.startsWith(`${CALENDAR_EVENT_KIND}:`)) return null;

  const message = event.content?.trim();
  if (!message) return null;

  const rawKind = event.tags.find(([name]) => name === 'update-kind')?.[1];
  const updateKind: EventUpdateKind =
    rawKind === 'reschedule' || rawKind === 'relocation' || rawKind === 'cancelled'
      ? rawKind
      : 'update';

  // SECURITY: only trust updates from the event's host (the pubkey embedded in
  // the `a` coordinate) or a SkateSpots admin. Anyone else is forging.
  const hostPubkey = eventCoord.split(':')[1];
  let authorRole: 'host' | 'admin';
  if (event.pubkey === hostPubkey) {
    authorRole = 'host';
  } else if (isAdminPubkey(event.pubkey)) {
    authorRole = 'admin';
  } else {
    return null;
  }

  return {
    id: event.id,
    pubkey: event.pubkey,
    eventCoord,
    eventId: event.tags.find(([name]) => name === 'e')?.[1],
    message: message.slice(0, MAX_DESCRIPTION_LEN),
    updateKind,
    authorRole,
    createdAt: event.created_at,
    event,
  };
}

// Main spot categories (mutually exclusive - user picks ONE)
export const SPOT_CATEGORIES = {
  street: { label: 'Street', emoji: '🛣️', description: 'Random found spots, urban terrain' },
  transition: { label: 'Transition', emoji: '🌊', description: 'Curved/ramped surfaces' },
  park: { label: 'Park', emoji: '🏟️', description: 'Built skateparks' },
  plaza: { label: 'Plaza', emoji: '📍', description: 'Urban plazas (like MACBA, Love Park)' },
} as const;

// Spot features organized by category
export const SPOT_FEATURES = {
  // Street features
  wallrides: { label: 'Wallrides', emoji: '🧱', category: 'street' },
  stairs: { label: 'Stairs & Handrails', emoji: '🪜', category: 'street' },
  rails: { label: 'Rails', emoji: '🚧', category: 'street' },
  ledges: { label: 'Ledges & Curbs', emoji: '⬜', category: 'street' },
  gaps: { label: 'Gaps', emoji: '🕳️', category: 'street' },
  flatground: { label: 'Flatground', emoji: '⬛', category: 'street' },
  'manual-pads': { label: 'Manual Pads', emoji: '⚖️', category: 'street' },
  
  // Transition features
  'half-pipes': { label: 'Half Pipes', emoji: '🌊', category: 'transition' },
  'quarter-pipes': { label: 'Quarter Pipes', emoji: '🌀', category: 'transition' },
  'mini-ramps': { label: 'Mini Ramps', emoji: '🎢', category: 'transition' },
  bowls: { label: 'Bowls', emoji: '🥣', category: 'transition' },
  vert: { label: 'Vert Ramps', emoji: '🔝', category: 'transition' },
  'mega-ramps': { label: 'Mega Ramps', emoji: '🚀', category: 'transition' },
  
  // Park-specific features (only in Park/Plaza)
  hubbas: { label: 'Hubbas', emoji: '📐', category: 'park' },
  'euro-gaps': { label: 'Euro Gaps', emoji: '🔀', category: 'park' },
  banks: { label: 'Banks', emoji: '📈', category: 'park' },
  'spine-ramps': { label: 'Spine Ramps', emoji: '🔃', category: 'park' },
  'roll-ins': { label: 'Roll-ins', emoji: '⬇️', category: 'park' },
  hips: { label: 'Hips', emoji: '↗️', category: 'park' },
  volcano: { label: 'Volcano', emoji: '🌋', category: 'park' },
  pyramids: { label: 'Pyramids / Funboxes', emoji: '🔺', category: 'park' },
  'snake-runs': { label: 'Snake Runs', emoji: '🐍', category: 'park' },
  'pump-track': { label: 'Pump Track Rollers', emoji: '🔄', category: 'park' },
  'flat-bars': { label: 'Flat Bars', emoji: '➖', category: 'park' },
} as const;

// Get features available for a category
export function getFeaturesForCategory(category: string): Array<{ key: string; label: string; labelKey: string; emoji: string }> {
  const allStreetFeatures = Object.entries(SPOT_FEATURES)
    .filter(([, v]) => v.category === 'street')
    .map(([key, v]) => ({ key, label: v.label, labelKey: SPOT_FEATURE_KEYS[key], emoji: v.emoji }));
  
  const allTransitionFeatures = Object.entries(SPOT_FEATURES)
    .filter(([, v]) => v.category === 'transition')
    .map(([key, v]) => ({ key, label: v.label, labelKey: SPOT_FEATURE_KEYS[key], emoji: v.emoji }));
  
  const allParkFeatures = Object.entries(SPOT_FEATURES)
    .filter(([, v]) => v.category === 'park')
    .map(([key, v]) => ({ key, label: v.label, labelKey: SPOT_FEATURE_KEYS[key], emoji: v.emoji }));

  switch (category) {
    case 'street':
      return allStreetFeatures;
    case 'transition':
      return allTransitionFeatures;
    case 'park':
    case 'plaza':
      // Parks and Plazas get ALL features
      return [...allStreetFeatures, ...allTransitionFeatures, ...allParkFeatures];
    default:
      return [];
  }
}

// Get all features as flat list (for filters)
export function getAllFeatures(): Array<{ key: string; label: string; labelKey: string; emoji: string; category: string }> {
  return Object.entries(SPOT_FEATURES).map(([key, v]) => ({
    key,
    label: v.label,
    labelKey: SPOT_FEATURE_KEYS[key],
    emoji: v.emoji,
    category: v.category,
  }));
}

// Legacy SPOT_TYPE_LABELS for backwards compatibility (combines categories + features)
export const SPOT_TYPE_LABELS: Record<string, string> = {
  // Categories
  street: 'Street',
  transition: 'Transition',
  park: 'Park',
  plaza: 'Plaza',
  // Features (for display/filtering)
  wallrides: 'Wallrides',
  stairs: 'Stairs & Handrails',
  rails: 'Rails',
  ledges: 'Ledges & Curbs',
  gaps: 'Gaps',
  flatground: 'Flatground',
  'manual-pads': 'Manual Pads',
  'half-pipes': 'Half Pipes',
  'quarter-pipes': 'Quarter Pipes',
  'mini-ramps': 'Mini Ramps',
  bowls: 'Bowls',
  vert: 'Vert Ramps',
  'mega-ramps': 'Mega Ramps',
  hubbas: 'Hubbas',
  'euro-gaps': 'Euro Gaps',
  banks: 'Banks',
  'spine-ramps': 'Spine Ramps',
  'roll-ins': 'Roll-ins',
  hips: 'Hips',
  volcano: 'Volcano',
  pyramids: 'Pyramids / Funboxes',
  'snake-runs': 'Snake Runs',
  'pump-track': 'Pump Track Rollers',
  'flat-bars': 'Flat Bars',
  // Legacy (deprecated but kept for backwards compat)
  diy: 'DIY',
  rail: 'Rail',
  ledge: 'Ledge',
  gap: 'Gap',
  bowl: 'Bowl',
  stall: 'Stall',
  slappy: 'Slappy',
};

export const ACCESS_TYPE_INFO = {
  public: { emoji: '🌍', label: 'Public - Open to Everyone', color: '#ff0040' },
  private: { emoji: '🔒', label: 'Private Property - Permission Needed', color: '#ff6600' },
  locals: { emoji: '👥', label: 'Ask Locals First', color: '#ccff00' },
};

/**
 * Display metadata for a spot's shelter / weather-protection level. `short` is
 * used in tight spots (cards, map popups); `label` in the detail view. Only
 * sheltered spots are worth badging — 'outdoor' is the default and returns no
 * badge, so we don't clutter the vast majority of street spots.
 */
export const SHELTER_INFO: Record<
  'partial' | 'covered' | 'indoor',
  { emoji: string; label: string; short: string; color: string }
> = {
  partial: { emoji: '🌤️', label: 'Partly Covered', short: 'Partly Covered', color: '#38bdf8' },
  covered: { emoji: '🏠', label: 'Covered / Roofed', short: 'Covered', color: '#22d3ee' },
  indoor: { emoji: '🏢', label: 'Indoor', short: 'Indoor', color: '#818cf8' },
};

export const EVENT_TYPE_LABELS: Record<string, string> = {
  contest: 'Contest',
  demo: 'Demo',
  session: 'Session',
  workshop: 'Workshop',
  premiere: 'Premiere',
  tradeshow: 'Trade Show',
  gameskate: 'Game of Skate',
  // Music & Culture
  concert: '🎸 Concert',
  jam: '🎵 Jam',
  festival: '🎪 Festival',
  popup: '🎯 Pop-Up',
};

export const COACH_SKILL_LABELS: Record<string, string> = {
  basics: 'Basics',
  ollies: 'Ollies',
  kickflips: 'Kickflips',
  grinds: 'Grinds & Slides',
  manuals: 'Manuals',
  inverts: 'Inverts',
  vert: 'Vert/Ramp',
  bowl: 'Bowl',
  street: 'Street',
  freestyle: 'Freestyle',
  safety: 'Safety',
  diy: 'DIY Skate Modules',
};

export const COACH_SKILL_DESCRIPTIONS: Record<string, string> = {
  basics: 'Pushing, stance, balance, turning',
  ollies: 'Ollie and variations (nollie, fakie)',
  kickflips: 'Kickflip, heelflip, and variations',
  grinds: '50-50, 5-0, boardslide, and more',
  manuals: 'Manual, nose manual, combos',
  inverts: 'Invert, handplant, eggplant, andrecht',
  vert: 'Half-pipe, quarter-pipe, drop-ins',
  bowl: 'Bowl carving, pumping, lines',
  street: 'Street obstacles and creativity',
  freestyle: 'Flatground tricks and flow',
  safety: 'How to fall, protective gear, injury prevention',
  diy: 'Building ramps, rails, ledges, and other skate obstacles',
};

// Filming service types
export const FILMING_SERVICE_LABELS: Record<string, string> = {
  miniclips: 'Mini Clips',
  longparts: 'Long Video Parts',
  koth: 'King of the Road Style',
  documentaries: 'Documentaries',
  contests: 'Filming for Contests',
  raw: 'Raw Footage',
  followlines: 'Follow / Line Filming',
  lines: 'Line & B-Roll Filming',
};

export const FILMING_SERVICE_DESCRIPTIONS: Record<string, string> = {
  miniclips: '15-60 sec clips for social media',
  longparts: '3-10 min full video parts with music',
  koth: 'Adventure/challenge style skate videos',
  documentaries: 'Skate culture and story-driven content',
  contests: 'Professional contest and competition coverage',
  raw: 'Unedited multi-angle footage',
  followlines: 'Fisheye follow-cam for lines',
  lines: 'Long-lens lines and cinematic b-roll',
};

// Filming skills/equipment (video-focused)
export const FILMING_SKILL_LABELS: Record<string, string> = {
  vx1000: 'VX1000',
  hvx: 'HVX / HPX',
  cinema: 'Cinema Camera',
  dslr: 'DSLR / Mirrorless',
  actioncam: 'GoPro / Action Cam',
  phone: 'Phone Filming',
  drone: 'Drone / Aerial',
  gimbal: 'Gimbal / Stabilizer',
  fisheye: 'Fisheye Lens',
  longlens: 'Long Lens',
  '4k': '4K / High Frame Rate',
  editing: 'Video Editing',
  color: 'Color Grading',
};

export const FILMING_SKILL_DESCRIPTIONS: Record<string, string> = {
  vx1000: 'Classic VX1000 skateboarding aesthetic',
  hvx: 'Panasonic HVX/HPX standard-def / HD look',
  cinema: 'Cinema camera (FX3, C-series, RED, BMPCC)',
  dslr: 'High quality DSLR or mirrorless camera',
  actioncam: 'GoPro / action cam POV and mounts',
  phone: 'Mobile filming with modern smartphones',
  drone: 'Aerial and drone footage',
  gimbal: 'Stabilized gimbal movement',
  fisheye: 'Wide-angle fisheye lens shots',
  longlens: 'Long lens for detailed shots',
  '4k': '4K resolution and high frame rate slow-mo',
  editing: 'Professional video editing and post-production',
  color: 'Color correction and grading',
};

// Video editor service types
export const EDITOR_SERVICE_LABELS: Record<string, string> = {
  parts: 'Video Parts',
  montages: 'Montages',
  reels: 'Reels / Short Clips',
  documentaries: 'Documentaries',
  contest: 'Contest Edits',
  brand: 'Brand / Promo Videos',
  motion: 'Motion Graphics',
  colorgrade: 'Color Grading Only',
};

export const EDITOR_SERVICE_DESCRIPTIONS: Record<string, string> = {
  parts: 'Full skate video parts with soundtrack',
  montages: 'Compilation edits from raw footage',
  reels: '15–60 sec social media clips & reels',
  documentaries: 'Story-driven skate culture films',
  contest: 'Recap edits for contests and events',
  brand: 'Promotional content for brands and shops',
  motion: 'Titles, transitions, effects, and graphics',
  colorgrade: 'Colour correction and LUT-based grading',
};

// Hardware / software skills for editors
export const EDITOR_SKILL_LABELS: Record<string, string> = {
  premiere: 'Adobe Premiere',
  resolve: 'DaVinci Resolve',
  finalcut: 'Final Cut Pro',
  aftereffects: 'After Effects',
  luts: 'Custom LUTs',
  vhs: 'VHS / Retro Aesthetic',
  '4k': '4K & RAW Workflows',
  sound: 'Sound Design / Mix',
};

export const EDITOR_SKILL_DESCRIPTIONS: Record<string, string> = {
  premiere: 'Adobe Premiere Pro editing',
  resolve: 'DaVinci Resolve editing & grading',
  finalcut: 'Final Cut Pro editing',
  aftereffects: 'Motion graphics and compositing',
  luts: 'Custom colour look development',
  vhs: 'VHS glitch, super-8, retro film looks',
  '4k': 'High-res RAW/LOG camera workflows',
  sound: 'Music sync, SFX, audio mastering',
};

// ─── Photographer taxonomy ──────────────────────────────────────────────────
// Skate photography is a distinct craft from filming — it's shot-, light-,
// and print-oriented. These maps power The Lab's Photographers category.

// What a photographer offers (deliverables / shoot types)
export const PHOTO_SERVICE_LABELS: Record<string, string> = {
  action: 'Action / Trick Shots',
  sequence: 'Sequence Shots',
  portraits: 'Portraits',
  editorial: 'Editorial / Magazine',
  product: 'Product / Shop Photography',
  events: 'Event Coverage',
  lifestyle: 'Lifestyle / Documentary',
  prints: 'Prints & Zines',
};

export const PHOTO_SERVICE_DESCRIPTIONS: Record<string, string> = {
  action: 'Peak-action stills of tricks and lines',
  sequence: 'Multi-frame trick sequences',
  portraits: 'Rider portraits and team shots',
  editorial: 'Magazine-ready editorial spreads',
  product: 'Deck, gear and shop product photography',
  events: 'Comp, jam and premiere coverage',
  lifestyle: 'Behind-the-scenes and culture documentary',
  prints: 'Physical prints, zines and photo books',
};

// Camera bodies / formats
export const PHOTO_CAMERA_LABELS: Record<string, string> = {
  dslr: 'DSLR',
  mirrorless: 'Mirrorless',
  medium: 'Medium Format',
  film35: '35mm Film',
  filmmedium: 'Medium Format Film',
  point: 'Point & Shoot',
  phone: 'Phone',
};

// Lenses
export const PHOTO_LENS_LABELS: Record<string, string> = {
  fisheye: 'Fisheye',
  wide: 'Wide Angle',
  standard: 'Standard / Prime',
  telephoto: 'Telephoto / Long Lens',
  macro: 'Macro',
  zoom: 'Zoom',
};

// Lighting gear
export const PHOTO_LIGHTING_LABELS: Record<string, string> = {
  strobes: 'Studio Strobes',
  speedlights: 'Speedlights / Flashes',
  profoto: 'Profoto',
  elinchrom: 'Elinchrom',
  godox: 'Godox',
  triggers: 'Remote Triggers',
  continuous: 'Continuous / LED',
  reflectors: 'Reflectors / Diffusers',
  naturallight: 'Natural Light Only',
};

// Support / accessories
export const PHOTO_SUPPORT_LABELS: Record<string, string> = {
  tripod: 'Tripod',
  monopod: 'Monopod',
  lightstands: 'Light Stands',
  gimbal: 'Gimbal',
  bag: 'Mobile Rig / Bag',
  laptop: 'On-site Tethering',
};

// Shooting style
export const PHOTO_STYLE_LABELS: Record<string, string> = {
  flashfisheye: 'Flash Fisheye',
  natural: 'Natural Light',
  bw: 'Black & White',
  film: 'Film Aesthetic',
  longlens: 'Long Lens',
  studio: 'Studio / Lit',
  street: 'Street / Documentary',
};

// ----- Builder (ramp / park / DIY builders) -----

// What kind of things they build
export const BUILDER_SERVICE_LABELS: Record<string, string> = {
  diy: 'DIY Spots',
  concrete: 'Concrete Parks',
  wood: 'Wooden Ramps',
  bowls: 'Bowls & Pools',
  transitions: 'Transitions & Quarters',
  rails: 'Rails & Ledges',
  boxes: 'Manny Pads & Boxes',
  minis: 'Mini Ramps',
  pumptrack: 'Pump Tracks',
  foam: 'Foam Pits / Indoor',
  repairs: 'Repairs & Resurfacing',
  design: 'Design & Consulting',
};

export const BUILDER_SERVICE_DESCRIPTIONS: Record<string, string> = {
  diy: 'Community DIY spots and guerrilla builds',
  concrete: 'Poured-concrete skateparks and features',
  wood: 'Wooden ramps, launch boxes and obstacles',
  bowls: 'Bowls, pools and deep transition',
  transitions: 'Quarterpipes, banks and transition',
  rails: 'Steel rails, ledges and grind features',
  boxes: 'Manny pads, funboxes and street features',
  minis: 'Mini ramps and backyard setups',
  pumptrack: 'Pump tracks and flow lines',
  foam: 'Foam pits, resi and indoor training features',
  repairs: 'Fixing, patching and resurfacing existing spots',
  design: 'Plans, drawings and build consulting',
};

// Materials / trade skills
export const BUILDER_SKILL_LABELS: Record<string, string> = {
  concretework: 'Concrete / Shotcrete',
  welding: 'Welding / Steel Fab',
  carpentry: 'Carpentry / Woodwork',
  formwork: 'Formwork & Rebar',
  masonry: 'Masonry / Blockwork',
  coping: 'Coping (pool / steel)',
  surfacing: 'Skatelite / Surfacing',
  earthworks: 'Earthworks / Excavation',
};

// Scale of projects taken on
export const BUILDER_SCALE_LABELS: Record<string, string> = {
  backyard: 'Backyard / Mini',
  diycommunity: 'Community DIY',
  publicpark: 'Full Public Park',
  indoor: 'Indoor Facility',
  event: 'Event / Contest Course',
};

// ----- Designer / Artist (board graphics, logos, posters, merch) -----

// What they make
export const ARTIST_SERVICE_LABELS: Record<string, string> = {
  boardart: 'Board Graphics',
  logos: 'Logos & Branding',
  posters: 'Posters & Flyers',
  merch: 'Merch & Apparel',
  zines: 'Zines & Print',
  illustration: 'Illustration',
  stickers: 'Stickers & Decals',
  webdesign: 'Web / Digital',
  typography: 'Typography / Lettering',
  animation: 'Animation / Motion',
};

export const ARTIST_SERVICE_DESCRIPTIONS: Record<string, string> = {
  boardart: 'Deck graphics and griptape art',
  logos: 'Brand identity, logos and wordmarks',
  posters: 'Event posters, flyers and gig art',
  merch: 'T-shirts, hoodies and apparel graphics',
  zines: 'Zines, editorial and print layout',
  illustration: 'Custom illustration and character work',
  stickers: 'Sticker packs, decals and slaps',
  webdesign: 'Websites, digital and UI',
  typography: 'Hand lettering and custom type',
  animation: 'Motion graphics and animation',
};

// Medium / how they work
export const ARTIST_MEDIUM_LABELS: Record<string, string> = {
  digital: 'Digital / Vector',
  handdrawn: 'Hand-Drawn',
  screenprint: 'Screen Print',
  paint: 'Paint / Acrylic',
  collage: 'Collage / Mixed',
  photo: 'Photo / Photoshop',
  '3d': '3D / Render',
};

// Software / tools they use
export const ARTIST_TOOL_LABELS: Record<string, string> = {
  illustrator: 'Adobe Illustrator',
  photoshop: 'Adobe Photoshop',
  procreate: 'Procreate',
  affinity: 'Affinity',
  figma: 'Figma',
  blender: 'Blender',
  aftereffects: 'After Effects',
  clipstudio: 'Clip Studio',
};

// ----- Clothing designer (custom clothes, team kits, apparel) -----

// What they make
export const DESIGNER_SERVICE_LABELS: Record<string, string> = {
  tees: 'T-Shirts',
  hoodies: 'Hoodies & Sweats',
  pants: 'Pants & Shorts',
  jackets: 'Jackets & Outerwear',
  kits: 'Team Kits & Jerseys',
  caps: 'Caps & Beanies',
  socks: 'Socks',
  accessories: 'Bags & Accessories',
  footwear: 'Footwear & Shoes',
  patches: 'Patches & Appliqué',
  griptape: 'Griptape & Deck Apparel',
  onepiece: 'One-of-One / Upcycled',
};

export const DESIGNER_SERVICE_DESCRIPTIONS: Record<string, string> = {
  tees: 'Custom tees and tops',
  hoodies: 'Hoodies, crews and sweatpants',
  pants: 'Work pants, cargos and shorts',
  jackets: 'Coaches, shells and work jackets',
  kits: 'Team kits, jerseys and uniforms',
  caps: 'Caps, beanies and headwear',
  socks: 'Crew socks and knitwear',
  accessories: 'Bags, belts and small goods',
  footwear: 'Custom shoes and footwear',
  patches: 'Embroidered patches and appliqué',
  griptape: 'Griptape art and deck apparel',
  onepiece: 'Single pieces and upcycled garments',
};

// How they make it
export const DESIGNER_METHOD_LABELS: Record<string, string> = {
  screenprint: 'Screen Print',
  dtg: 'DTG / Direct-to-Garment',
  embroidery: 'Embroidery',
  cutsew: 'Cut & Sew',
  sublimation: 'Sublimation',
  heattransfer: 'Heat Transfer / Vinyl',
  garmentdye: 'Garment Dye',
  knit: 'Knitwear',
  patchwork: 'Patchwork',
  allover: 'All-over Print',
};

// Materials
export const DESIGNER_MATERIAL_LABELS: Record<string, string> = {
  cotton: 'Cotton',
  heavyweight: 'Heavyweight',
  organic: 'Organic / Sustainable',
  fleece: 'Fleece',
  denim: 'Denim',
  canvas: 'Canvas',
  nylon: 'Nylon / Technical',
  wool: 'Merino / Wool',
  leather: 'Leather',
  recycled: 'Recycled / Deadstock',
};

// ----- Graffiti / Mural artist -----

// Styles
export const GRAFFITI_STYLE_LABELS: Record<string, string> = {
  throwups: 'Throw-ups',
  pieces: 'Pieces / Burners',
  murals: 'Murals',
  characters: 'Characters',
  lettering: 'Lettering / Wildstyle',
  stencil: 'Stencil',
  handstyles: 'Handstyles / Tags',
  '3dstyle': '3D Style',
  abstract: 'Abstract',
};

export const GRAFFITI_STYLE_DESCRIPTIONS: Record<string, string> = {
  throwups: 'Quick two-color fills',
  pieces: 'Full-color pieces and burners',
  murals: 'Large-scale murals and productions',
  characters: 'Character and figure work',
  lettering: 'Wildstyle and letter structure',
  stencil: 'Stencil and street art',
  handstyles: 'Tags and handstyles',
  '3dstyle': '3D and anamorphic lettering',
  abstract: 'Abstract and freestyle',
};

// Medium / surface
export const GRAFFITI_MEDIUM_LABELS: Record<string, string> = {
  spray: 'Spray Cans',
  rollers: 'Rollers / Emulsion',
  markers: 'Markers / Inks',
  brush: 'Brush / Paint',
  digital: 'Digital / Procreate',
};

// Work context
export const GRAFFITI_CONTEXT_LABELS: Record<string, string> = {
  legalwalls: 'Legal Walls',
  commissions: 'Commissions',
  liveart: 'Live Painting',
  skateparks: 'Skatepark Murals',
  interiors: 'Interiors / Shops',
  workshops: 'Workshops',
};

// ----- Tattoo artist -----

// Styles
export const TATTOO_STYLE_LABELS: Record<string, string> = {
  traditional: 'Traditional / Old School',
  neotraditional: 'Neo-Traditional',
  fineline: 'Fine Line',
  blackwork: 'Blackwork',
  realism: 'Realism',
  lettering: 'Lettering / Script',
  illustrative: 'Illustrative',
  skateflash: 'Skate Flash',
  ignorant: 'Ignorant / Handpoke Style',
  japanese: 'Japanese / Irezumi',
};

export const TATTOO_STYLE_DESCRIPTIONS: Record<string, string> = {
  traditional: 'Bold lines, classic Americana',
  neotraditional: 'Traditional with modern detail',
  fineline: 'Delicate single-needle work',
  blackwork: 'Solid black and pattern',
  realism: 'Photo-realistic and portraits',
  lettering: 'Script, lettering and quotes',
  illustrative: 'Illustrative and graphic',
  skateflash: 'Skate-culture flash designs',
  ignorant: 'Ignorant / naive handpoke style',
  japanese: 'Japanese traditional / irezumi',
};

// Method
export const TATTOO_METHOD_LABELS: Record<string, string> = {
  machine: 'Machine',
  handpoke: 'Hand-Poke / Stick & Poke',
  flash: 'Flash Available',
  custom: 'Custom Designs',
  coverup: 'Cover-ups',
};

// ----- Physical Trainer / Physiotherapist -----

// Focus areas
export const TRAINER_FOCUS_LABELS: Record<string, string> = {
  strength: 'Strength & Conditioning',
  mobility: 'Mobility & Flexibility',
  injuryprevention: 'Injury Prevention',
  rehab: 'Rehab / Physio',
  recovery: 'Recovery & Bodywork',
  balance: 'Balance & Stability',
  cardio: 'Cardio / Endurance',
  nutrition: 'Nutrition Guidance',
};

export const TRAINER_FOCUS_DESCRIPTIONS: Record<string, string> = {
  strength: 'Building strength and power for skating',
  mobility: 'Range of motion and flexibility',
  injuryprevention: 'Prehab and reducing injury risk',
  rehab: 'Post-injury physiotherapy and rehab',
  recovery: 'Massage, bodywork and recovery',
  balance: 'Proprioception, balance and stability',
  cardio: 'Conditioning and endurance',
  nutrition: 'Fuelling and nutrition advice',
};

// Common skate injuries they work with
export const TRAINER_INJURY_LABELS: Record<string, string> = {
  ankles: 'Ankles',
  knees: 'Knees',
  wrists: 'Wrists',
  hips: 'Hips',
  back: 'Back / Spine',
  shoulders: 'Shoulders',
  heelbruise: 'Heel Bruises',
  concussion: 'Concussion Protocol',
};

// Credentials / setting
export const TRAINER_CREDENTIAL_LABELS: Record<string, string> = {
  physio: 'Licensed Physiotherapist',
  osteo: 'Osteopath',
  certtrainer: 'Certified Trainer',
  sportstherapist: 'Sports Therapist',
  massage: 'Massage Therapist',
  inperson: 'In-Person',
  remote: 'Remote / Online',
};

// ----- Musician / Band (skaters who make music) -----

// Genres
export const MUSICIAN_GENRE_LABELS: Record<string, string> = {
  punk: 'Punk',
  hardcore: 'Hardcore',
  metal: 'Metal',
  rock: 'Rock',
  indie: 'Indie / Alt',
  hiphop: 'Hip-Hop / Rap',
  electronic: 'Electronic',
  lofi: 'Lo-Fi / Beats',
  reggae: 'Reggae / Dub',
  ska: 'Ska',
  jazz: 'Jazz',
  funk: 'Funk / Soul',
  flamenco: 'Flamenco',
  folk: 'Folk / Acoustic',
  experimental: 'Experimental',
  grunge: 'Grunge',
};

// Instruments / roles
export const MUSICIAN_INSTRUMENT_LABELS: Record<string, string> = {
  vocals: 'Vocals',
  guitar: 'Guitar',
  bass: 'Bass',
  drums: 'Drums',
  keys: 'Keys / Synth',
  dj: 'DJ / Turntables',
  producer: 'Producer / Beats',
  sax: 'Sax / Brass',
  strings: 'Strings',
  other: 'Other',
};

// Act type
export const MUSICIAN_ACT_LABELS: Record<string, string> = {
  solo: 'Solo Artist',
  band: 'Band',
  dj: 'DJ',
  producer: 'Producer',
  collective: 'Collective',
};

// ----- Judges (skate event officials) -----

// Event formats a judge is experienced with. Covers everything from a casket
// of flat-ground S.K.A.T. to the biggest touring contest circuits.
export const JUDGE_FORMAT_LABELS: Record<string, string> = {
  game_of_skate: 'Game of S.K.A.T.E.',
  best_trick: 'Best Trick',
  jam: 'Jam Format',
  contest: 'Contest / Comp',
  street_league: 'Street League Style',
  bowl: 'Bowl / Vert',
  mini_ramp: 'Mini Ramp',
  park: 'Park',
  street: 'Street',
  freestyle: 'Freestyle',
  world_tour: 'World Destruction Tour',
  am_series: 'Am Series / Qualifiers',
  local_jam: 'Local Jam / Grassroots',
  online: 'Online / IG Contest',
};

// What the judge specializes in evaluating.
export const JUDGE_SPECIALTY_LABELS: Record<string, string> = {
  head_judge: 'Head Judge',
  scoring: 'Scoring / Tabulation',
  mc: 'MC / Announcer',
  format_design: 'Format Design',
  rules: 'Rules / Officiating',
  brackets: 'Brackets / Heats',
  livestream: 'Livestream Judging',
  am_scout: 'Am Scouting',
};

// Level / circuit the judge has worked.
export const JUDGE_LEVEL_LABELS: Record<string, string> = {
  local: 'Local',
  regional: 'Regional',
  national: 'National',
  international: 'International',
  pro: 'Pro Circuit',
};

// ----- Event Organizers / Hosts (kind 35013) -----

// The kinds of events the organizer puts on.
export const ORGANIZER_EVENT_LABELS: Record<string, string> = {
  street_jam: 'Street Jam',
  best_trick: 'Best Trick',
  game_of_skate: 'Game of S.K.A.T.E.',
  contest: 'Contest / Comp',
  bowl: 'Bowl / Vert',
  mini_ramp: 'Mini Ramp',
  park: 'Park Session',
  demo: 'Pro Demo',
  clinic: 'Clinic / Workshop',
  meetup: 'Meetup / Cruise',
  downhill: 'Downhill / Race',
  slalom: 'Slalom',
  kids: 'Kids / Youth',
  charity: 'Charity / Fundraiser',
  tour_stop: 'Tour Stop',
  premiere: 'Video Premiere',
  market: 'Market / Art Show',
};

// What the organizer actually takes care of.
export const ORGANIZER_SERVICE_LABELS: Record<string, string> = {
  organizing: 'Full Organizing',
  hosting: 'Hosting / MC',
  permits: 'Permits & Council',
  sponsorship: 'Sponsorship / Brand Deals',
  promotion: 'Promotion & Marketing',
  livestream: 'Livestream / Coverage',
  sound: 'Sound & Music',
  ramps: 'Ramps & Obstacles',
  safety: 'Safety & First Aid',
  vendors: 'Food & Vendors',
  media: 'Photo / Video Coverage',
  registration: 'Sign-ups & Brackets',
};

// How big the events they run are.
export const ORGANIZER_SCALE_LABELS: Record<string, string> = {
  grassroots: 'Grassroots',
  local: 'Local',
  regional: 'Regional',
  national: 'National',
  international: 'International',
  pro: 'Pro Circuit',
};

// ----- Barbers / Hairstylists (kind 35014) -----

// What the barber offers.
export const BARBER_SERVICE_LABELS: Record<string, string> = {
  haircut: 'Haircut',
  fade: 'Fade',
  beard: 'Beard Trim',
  lineup: 'Line-up / Shape-up',
  colour: 'Colour & Dye',
  kids: "Kids' Cuts",
};

export const BARBER_SERVICE_DESCRIPTIONS: Record<string, string> = {
  haircut: 'A classic cut — clippers and scissors.',
  fade: 'A graduated fade — low, mid or high.',
  beard: 'Beard trim, shape and tidy-up.',
  lineup: 'Clean edges around the hairline and neck.',
  colour: 'Colour, bleach, dye and toning.',
  kids: 'Patient cuts for younger skaters.',
};

// Signature styles.
export const BARBER_STYLE_LABELS: Record<string, string> = {
  skin_fade: 'Skin Fade',
  taper: 'Taper',
  buzz: 'Buzz Cut',
  mohawk: 'Mohawk',
  mullet: 'Mullet',
  curly: 'Curls / Afro',
  long: 'Long Hair / Layers',
  classic: 'Classic Scissor Cut',
};

// Where they cut hair.
export const BARBER_SETTING_LABELS: Record<string, string> = {
  shop: 'Shop / Barbershop',
  mobile: 'Mobile / House Calls',
  event: 'Skate Events & Comps',
};

// ----- Transport / Drivers (kind 35016) -----

/** Vehicle classes a transport provider can offer. */
export const TRANSPORT_VEHICLE_LABELS: Record<string, string> = {
  car: 'Car',
  taxi: 'Taxi / Rideshare',
  van: 'Van / Minibus',
  moto: 'Motorcycle',
  helicopter: 'Helicopter',
  plane: 'Plane',
  boat: 'Boat',
  other: 'Other vehicle',
};

/** What they move. */
export const TRANSPORT_SERVICE_LABELS: Record<string, string> = {
  people: 'People',
  goods: 'Goods / Cargo',
  gear: 'Skate gear',
  airport: 'Airport transfer',
  venue: 'Venue / Event transfer',
  tours: 'Tours / Road trips',
  logistics: 'Event logistics',
  other: 'Other service',
};

/** Practical capabilities, self-attested. */
export const TRANSPORT_FEATURE_LABELS: Record<string, string> = {
  cargo: 'Cargo space',
  bike_board: 'Bike / board rack',
  wheelchair: 'Wheelchair access',
  pets: 'Pets welcome',
  border: 'Cross-border',
  night: 'Night driving',
  covered: 'Covered / weatherproof',
  group: 'Large groups',
};

export const TRANSPORT_CAPACITY_LABELS: Record<string, string> = {
  solo: '1–3 people',
  small_group: '4–7 people',
  large_group: '8+ people',
  van_load: 'Van load',
  freight: 'Freight / cargo',
};

export const TRANSPORT_COVERAGE_LABELS: Record<string, string> = {
  local: 'Local',
  regional: 'Regional',
  national: 'National',
  international: 'International',
  cross_border: 'Cross-border routes',
};

// ----- Crews (community identity, map-anchored) -----

/**
 * Feature flag: the Crew Treasury (NIP-75 zap goal) is hidden for now.
 * The code path is kept intact — flip this to `true` to re-enable the
 * treasury card on the crew detail page and the treasury section in the
 * crew form.
 */
export const SHOW_CREW_TREASURY = false;

// Crew vibe / focus tags
export const CREW_VIBE_LABELS: Record<string, string> = {
  street: 'Street',
  transition: 'Transition / Vert',
  park: 'Park',
  diy: 'DIY',
  cruising: 'Cruising / Filming',
  oldschool: 'Old School',
  allterrain: 'All Terrain',
  girls: 'Girl / Woman',
  youth: 'Youth / Groms',
  adaptive: 'Adaptive',
  punk: 'Punk',
  hiphop: 'Rap / Hip-Hop',
};

/**
 * A crew's "Lab scene" — an optional craft focus that surfaces the crew inside
 * the matching category of The Lab. A crew without a focus (`mixed`) is a
 * regular skate crew and only appears on the Crews page.
 *
 * These three scenes map onto the five Lab service types:
 *   builder  → building
 *   photo    → filming + photography + editing
 *   coaching → coaching
 *
 * Stored on the crew event as a single-letter, relay-queryable `t` tag using
 * the `CREW_FOCUS_TAG` map (e.g. `["t", "crew-focus-builder"]`).
 */
export type CrewFocus =
  | 'mixed'
  | 'builder'
  | 'photo'
  | 'coaching'
  | 'art'
  | 'music'
  | 'wellness';

export const CREW_FOCUS_LABELS: Record<CrewFocus, string> = {
  mixed: 'Mixed / General',
  builder: 'DIY & Builders',
  photo: 'Photo & Film',
  coaching: 'Coaching',
  art: 'Art & Design',
  music: 'Band & Music',
  wellness: 'Training & Physio',
};

export const CREW_FOCUS_DESCRIPTIONS: Record<CrewFocus, string> = {
  mixed: 'A regular skate crew — shows on the Crews page only.',
  builder: 'A DIY / park-building crew — also shows in The Lab under Builders.',
  photo: 'A filming, photography or editing crew — also shows in The Lab under Photo & Film.',
  coaching: 'A coaching / lessons crew — also shows in The Lab under Coaching.',
  art: 'An art, design, graffiti or tattoo collective — also shows in The Lab under Art & Design.',
  music: 'A band or music collective — also shows in The Lab under Music.',
  wellness: 'A training, fitness or physio crew — also shows in The Lab under Training.',
};

/** `t`-tag value stored on the crew event for each non-mixed focus. */
export const CREW_FOCUS_TAG: Record<Exclude<CrewFocus, 'mixed'>, string> = {
  builder: 'crew-focus-builder',
  photo: 'crew-focus-photo',
  coaching: 'crew-focus-coaching',
  art: 'crew-focus-art',
  music: 'crew-focus-music',
  wellness: 'crew-focus-wellness',
};

/** Reverse lookup: `t`-tag value → CrewFocus. */
export const CREW_FOCUS_FROM_TAG: Record<string, CrewFocus> = {
  'crew-focus-builder': 'builder',
  'crew-focus-photo': 'photo',
  'crew-focus-coaching': 'coaching',
  'crew-focus-art': 'art',
  'crew-focus-music': 'music',
  'crew-focus-wellness': 'wellness',
};

/**
 * Lab crafts a crew can put out an open call for ("looking for").
 * Stored as `["looking-for", <slug>]` tags on the crew event. Slugs map to the
 * Lab scenes so matching providers can be surfaced.
 */
export const CREW_LOOKING_FOR_OPTIONS = [
  { slug: 'filmer', label: 'Filmer', emoji: '🎥' },
  { slug: 'photographer', label: 'Photographer', emoji: '📸' },
  { slug: 'editor', label: 'Video Editor', emoji: '✂️' },
  { slug: 'coach', label: 'Coach', emoji: '🎓' },
  { slug: 'builder', label: 'Ramp Builder', emoji: '🔨' },
  { slug: 'artist', label: 'Artist / Designer', emoji: '🎨' },
  { slug: 'musician', label: 'Musician / Band', emoji: '🎵' },
  { slug: 'members', label: 'New Members', emoji: '🛹' },
] as const;

export type CrewLookingForSlug = (typeof CREW_LOOKING_FOR_OPTIONS)[number]['slug'];

export const CREW_LOOKING_FOR_LABELS: Record<string, { label: string; emoji: string }> =
  Object.fromEntries(CREW_LOOKING_FOR_OPTIONS.map((o) => [o.slug, { label: o.label, emoji: o.emoji }]));

/** NIP-75 Zap Goal kind — used for crew funding goals / treasury. */
export const ZAP_GOAL_KIND = 9041;

/** Lab service types that map onto a crew scene (used by LabCrewsStrip). */
export type LabServiceType =
  | 'coaching'
  | 'filming'
  | 'editing'
  | 'photography'
  | 'building'
  | 'artist'
  | 'graffiti'
  | 'tattoo'
  | 'trainer'
  | 'musician';

/** Map a Lab service type to the crew focus that belongs in that scene. */
export function crewFocusForServiceType(
  serviceType: LabServiceType
): Exclude<CrewFocus, 'mixed'> {
  switch (serviceType) {
    case 'building':
      return 'builder';
    case 'coaching':
      return 'coaching';
    case 'artist':
    case 'graffiti':
    case 'tattoo':
      return 'art';
    case 'musician':
      return 'music';
    case 'trainer':
      return 'wellness';
    default:
      return 'photo'; // filming, editing, photography
  }
}

export interface SkateCrew {
  id: string;
  pubkey: string;
  identifier: string;
  name: string;
  bio: string;             // Freeform crew manifesto / about
  geohash?: string;        // Home turf (map anchor)
  location?: string;
  image?: string;          // Crew logo / photo
  vibes: string[];         // Style/focus tags
  focus: CrewFocus;        // Optional Lab scene (builder/photo/coaching) or 'mixed'
  agentEnabled: boolean;   // Whether the crew's AI agent ("Sasquatch") is on
  founded?: string;        // Year founded (cosmetic)
  website?: string;
  instagram?: string;
  bandName?: string;       // Crew's skate band / music project name (`band` tag)
  bandUrl?: string;        // Link to the band's music (Spotify/Bandcamp/YT/Nostr) (`band-url` tag)
  social?: string;         // First social link (backward compat)
  socials: string[];       // All additional social links (`social` tags)
  nip05?: string;          // Crew's NIP-05 identifier (first handle; verified against founder pubkey)
  nip05s: string[];        // ALL crew NIP-05 handles (each verified against the founder pubkey)
  noffer?: string;         // Optional shared tip jar (CLINK)
  members: string[];       // Member pubkeys (hex) via `p` tags
  admins: string[];        // Delegated admin pubkeys (subset of members, `admin` marker)
  spotRefs: string[];      // Home spots (kind 30818 refs)
  labRefs: string[];       // Linked Lab profile coordinates (kind:pubkey:d)
  goalRef?: string;        // NIP-75 zap goal event id (crew funding goal / treasury)
  lookingFor: string[];    // Lab craft slugs the crew is hiring for (e.g. "filmer", "editor")
  sponsorRef?: string;     // Sponsoring skate shop coordinate (30017:pubkey:d) via `sponsor` tag
  coordinator?: CrewCoordinator; // Cordn/MLS encrypted-chat coordinator for this crew
  cordnGroup?: string; // Cordn group ref/link for the crew's MLS chat (from Staircase/Cordn web) (`cordn` tag)
  videoUrl?: string;       // Crew's headline video / montage — YouTube or Instagram URL (`video` tag)
  crewRoles: CrewMemberRole[]; // Optional skate roles (filmer/photographer/…) assigned to members
  createdAt: number;
  event: NostrEvent;
}

/**
 * Skate roles a crew can assign to a member — the *functions* on a real team
 * (the filmer is as vital as the skaters). These are additive to membership and
 * purely a flex/label: they grant no powers (only `admin` does that). A member
 * can hold a role AND be an admin.
 *
 * Stored as a dedicated tag on the crew event:
 *   `["crew-role", <memberPubkey>, <role>]`
 */
export type CrewRole =
  // ── Lab crafts (mirror the Lab profession kinds 35001–35012) ──
  | 'filmer'        // 35002
  | 'photographer'  // 35004
  | 'editor'        // 35003
  | 'coach'         // 35001
  | 'builder'       // 35005
  | 'artist'        // 35007 (designer / board graphics)
  | 'graffiti'      // 35008
  | 'tattoo'        // 35009
  | 'trainer'       // 35010 (physio / strength)
  | 'musician'      // 35011
  | 'judge'         // 35012
  // ── Crew-specific roles (no Lab equivalent) ──
  | 'manager'
  | 'og';

export interface CrewMemberRole {
  pubkey: string;
  role: CrewRole;
}

/**
 * Human labels + emoji for each crew role (skate-native language). Lab crafts
 * reuse the same emoji as their Lab profession so the language stays consistent
 * across the app; `labKind` links a role back to its Lab profile kind (if any)
 * so we can cross-link "this filmer has a Lab profile" later.
 */
export const CREW_ROLE_META: Record<CrewRole, { label: string; emoji: string; labKind?: number }> = {
  filmer:       { label: 'Filmer',       emoji: '🎥', labKind: SKATE_FILMER_KIND },
  photographer: { label: 'Photographer', emoji: '📸', labKind: SKATE_PHOTOGRAPHER_KIND },
  editor:       { label: 'Editor',       emoji: '✂️', labKind: SKATE_EDITOR_KIND },
  coach:        { label: 'Coach',        emoji: '🎓', labKind: SKATE_COACH_KIND },
  builder:      { label: 'Builder',      emoji: '🔨', labKind: SKATE_BUILDER_KIND },
  artist:       { label: 'Artist',       emoji: '🎨', labKind: SKATE_ARTIST_KIND },
  graffiti:     { label: 'Graffiti',     emoji: '🖌️', labKind: SKATE_GRAFFITI_KIND },
  tattoo:       { label: 'Tattoo',       emoji: '💉', labKind: SKATE_TATTOO_KIND },
  trainer:      { label: 'Trainer',      emoji: '💪', labKind: SKATE_TRAINER_KIND },
  musician:     { label: 'Musician',     emoji: '🎵', labKind: SKATE_MUSICIAN_KIND },
  judge:        { label: 'Judge',        emoji: '⚖️', labKind: SKATE_JUDGE_KIND },
  manager:      { label: 'Team Manager', emoji: '📋' },
  og:           { label: 'OG',           emoji: '👑' },
};

/** All assignable crew roles, in display order (media crafts → Lab crafts → crew-specific). */
export const CREW_ROLE_ORDER: CrewRole[] = [
  'filmer', 'photographer', 'editor',
  'coach', 'builder', 'artist', 'graffiti', 'tattoo', 'trainer', 'musician', 'judge',
  'manager', 'og',
];

const CREW_ROLE_SET = new Set<string>(CREW_ROLE_ORDER);

/**
 * Parse `crew-role` tags into member→role assignments. Only roles whose pubkey
 * is a valid hex key and whose role is recognised are kept. A member may appear
 * multiple times (e.g. filmer + editor).
 */
export function parseCrewRoles(event: NostrEvent): CrewMemberRole[] {
  const out: CrewMemberRole[] = [];
  const seen = new Set<string>();
  for (const [name, pubkey, role] of event.tags) {
    if (name !== 'crew-role') continue;
    if (!/^[0-9a-f]{64}$/i.test(pubkey ?? '')) continue;
    if (!role || !CREW_ROLE_SET.has(role)) continue;
    const key = `${pubkey.toLowerCase()}:${role}`;
    if (seen.has(key)) continue;
    seen.add(key);
    out.push({ pubkey: pubkey.toLowerCase(), role: role as CrewRole });
  }
  return out;
}

/**
 * A crew's encrypted-group coordinator (Cordn / MLS Delivery Service).
 *
 * SkateSpots crews keep their PUBLIC identity on Nostr (roster, spots, events),
 * but the crew's private group chat is designed to run over Cordn — an MLS
 * (RFC 9420) delivery-service coordinator, one per group, reached over ContextVM.
 * A crew can advertise which coordinator it uses so members' clients know where
 * to publish KeyPackages and fetch group messages.
 *
 * This is intentionally just a pointer: the crew event stays public and
 * discoverable, while message content, membership secrets and ratchets live
 * client-side under MLS. See the "Marmot / Concord / Cordn" analysis — Cordn is
 * the chosen fit because its coordinator-per-group model mirrors a crew's
 * leader/coordinator structure, it is browser/TypeScript-native, and it leaks no
 * protocol-specific events onto public relays.
 */
export interface CrewCoordinator {
  /** ContextVM server / coordinator endpoint (https or wss URL). */
  url: string;
  /** Optional coordinator service pubkey (hex) for ContextVM addressing. */
  pubkey?: string;
  /** Human pubkey (hex) responsible for running/operating the coordinator, if delegated. */
  operator?: string;
}

export interface SkateBuilder {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number; // "Pro" listing expiry (unix seconds), if paid
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];      // Combined build types + materials + scale tags
  experience?: string;   // Years building
  rate?: string;         // Freeform rate / quote basis
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;    // Link to past builds (IG, site)
  social?: string;
  gear?: string;         // Freeform "what we bring / how we work"
  serviceArea?: string;  // How far they travel (e.g. "Catalonia + willing to travel EU")
  insured?: boolean;     // Licensed / insured (relevant for public park companies)
  noffer?: string;
  entityType: EntityType;
  members: string[];
  spotRefs?: string[];   // Spots they've built (kind 30818 refs)
  crewRef?: string;      // Linked crew coordinate (35006:pubkey:d)
  createdAt: number;
  event: NostrEvent;
}

export interface SkateCoach {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number; // "Pro" listing expiry (unix seconds), if paid
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];
  experience?: string;
  rate?: string;
  /** Session formats taught (1-on-1, group, camp, …). */
  formats: string[];
  /** Levels taught (beginner → competition). */
  levels: string[];
  /** Age groups (kids / teens / adults / seniors). */
  ageGroups: string[];
  /** Self-attested credentials (first-aid, safeguarding, …). */
  credentials: string[];
  /** Optional free-form credential note (names an exact cert / issuer). */
  certNote?: string;
  /** Languages spoken. */
  languages: string[];
  /** Availability windows (weekends, evenings, …). */
  availability: string[];
  /** Optional booking link. */
  booking?: string;
  /** Coaching portfolio gallery image URLs (repeatable `photo` tags). */
  photos: string[];
  /** Optional highlight-reel video URL (YouTube / Instagram). */
  video?: string;
  /** Structured rate amount (string to preserve formatting), optional. */
  rateAmount?: string;
  /** Structured rate currency (`sats` / `USD` / `EUR` / `GBP`). */
  rateCurrency?: string;
  /** Structured rate billing unit (`hour` / `session` / …). */
  rateUnit?: string;
  /** Declared accepted payment methods (`cash` / `lightning` / `cashu` / …). */
  paymentMethods: string[];
  /** Optional free-form payment note. */
  paymentNote?: string;
  /** Optional booking fee amount (paid directly to the coach — never held by us). */
  bookingFee?: string;
  /** Currency for `bookingFee`. */
  bookingFeeCurrency?: string;
  /** Sliding scale / pay-what-you-can. */
  payWhatYouCan?: boolean;
  phone?: string;
  email?: string;
  website?: string;
  instagram?: string;
  noffer?: string; // Optional CLINK Offer code (noffer1...) for self-custodial payments
  entityType: EntityType; // individual (default) or collective
  members: string[]; // Member pubkeys (hex) claimed via `p` tags (collective only)
  spotRefs?: string[]; // Array of spot references: "30818:pubkey:d-tag"
  crewRef?: string;    // Linked crew coordinate (35006:pubkey:d)
  createdAt: number;
  event: NostrEvent;
}

export interface SkateArtist {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];     // services + medium + tools tags
  experience?: string;
  rate?: string;
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;   // portfolio / shop link
  social?: string;
  noffer?: string;
  entityType: EntityType;
  members: string[];
  crewRef?: string;
  createdAt: number;
  event: NostrEvent;
}

export type SkateDesigner = SkateArtist;
export type SkateTransport = SkateArtist;

export interface SkateGraffiti {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];     // style + medium + context tags
  experience?: string;
  rate?: string;
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;
  social?: string;
  crew?: string;        // freeform graffiti crew name (distinct from skate crew)
  noffer?: string;
  entityType: EntityType;
  members: string[];
  spotRefs?: string[];  // walls / spots painted (kind 30818 refs)
  crewRef?: string;
  createdAt: number;
  event: NostrEvent;
}

export interface SkateTattoo {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];      // style + method tags
  experience?: string;
  rate?: string;
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;
  social?: string;
  studio?: string;       // studio / shop name
  booksOpen?: boolean;   // currently taking bookings
  noffer?: string;
  entityType: EntityType;
  members: string[];
  crewRef?: string;
  createdAt: number;
  event: NostrEvent;
}

export interface SkateTrainer {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];       // focus + injury + credential tags
  experience?: string;
  rate?: string;
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;     // profile / booking link
  social?: string;
  credentials?: string;   // freeform certifications
  remote?: boolean;       // offers remote/online coaching
  noffer?: string;
  entityType: EntityType;
  members: string[];
  crewRef?: string;
  createdAt: number;
  event: NostrEvent;
}

export interface SkateMusician {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;         // artist / band name
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];      // genre + instrument tags
  actType?: string;      // solo / band / dj / producer / collective
  experience?: string;
  rate?: string;         // e.g. booking rate for gigs
  phone?: string;
  email?: string;
  website?: string;
  spotify?: string;      // Spotify link
  bandcamp?: string;     // Bandcamp link
  soundcloud?: string;   // SoundCloud link
  youtube?: string;      // YouTube link
  social?: string;
  noffer?: string;
  entityType: EntityType;
  members: string[];     // band members (collective)
  crewRef?: string;      // linked skate crew coordinate
  createdAt: number;
  event: NostrEvent;
}

export interface SkateFilmer {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number; // "Pro" listing expiry (unix seconds), if paid
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];   // Combined services and filming skills
  experience?: string; // Years of experience
  rate?: string;
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string; // Reel / portfolio link (Vimeo, YouTube, IG)
  social?: string; // Social media handle or link
  gear?: string; // Freeform "what's in the bag" (cameras, lenses, rigs)
  noffer?: string; // Optional CLINK Offer code (noffer1...) for self-custodial payments
  entityType: EntityType; // individual (default) or collective
  members: string[]; // Member pubkeys (hex) claimed via `p` tags (collective only)
  spotRefs?: string[]; // Array of spot references: "30818:pubkey:d-tag"
  crewRef?: string;    // Linked crew coordinate (35006:pubkey:d)
  createdAt: number;
  event: NostrEvent;
}

export interface SkateEditor {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number; // "Pro" listing expiry (unix seconds), if paid
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];    // Combined editor services + software/hardware skills
  experience?: string; // Years of experience
  rate?: string;
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;  // Portfolio link (Vimeo, YouTube, etc.)
  social?: string;
  hardware?: string;   // e.g. "MacBook Pro M3, Sony FX3"
  software?: string;   // e.g. "DaVinci Resolve, Premiere"
  noffer?: string;     // Optional CLINK Offer code (noffer1...) for self-custodial payments
  entityType: EntityType; // individual (default) or collective
  members: string[]; // Member pubkeys (hex) claimed via `p` tags (collective only)
  crewRef?: string;    // Linked crew coordinate (35006:pubkey:d)
  createdAt: number;
  event: NostrEvent;
}

export interface SkatePhotographer {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number; // "Pro" listing expiry (unix seconds), if paid
  title: string;
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];     // Combined services + camera/lens/lighting/support/style tags
  experience?: string;  // Years of experience
  rate?: string;
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;   // Portfolio link (Instagram, personal site, etc.)
  social?: string;
  gear?: string;        // Freeform "what's in the bag" (bodies, lenses, lights)
  noffer?: string;      // Optional CLINK Offer code (noffer1...) for self-custodial payments
  entityType: EntityType; // individual (default) or collective
  members: string[]; // Member pubkeys (hex) claimed via `p` tags (collective only)
  spotRefs?: string[];  // Array of spot references: "30818:pubkey:d-tag"
  crewRef?: string;     // Linked crew coordinate (35006:pubkey:d)
  createdAt: number;
  event: NostrEvent;
}

export interface SkateTour {
  id: string;
  pubkey: string;
  identifier: string;
  title: string;
  description: string;
  category: TourCategory; // local, national, international, destruction
  geohash?: string; // City-level location (low precision for privacy)
  location?: string; // City/region name
  meetingPoint?: string; // Public meeting spot name
  meetingPointCoords?: { lat: number; lon: number };
  image?: string;
  duration?: number; // Hours for local, days for national/international
  durationUnit?: 'hours' | 'days' | 'weeks';
  skillLevel?: 'beginner' | 'intermediate' | 'advanced' | 'all';
  spotTypes: string[]; // street, park, diy, transition
  maxGroupSize?: number;
  price?: number; // Sats (host decides)
  availability?: string; // e.g., "weekends", "by appointment" (for local/national)
  languages?: string[];
  shopRef?: string; // Reference to partner shop (naddr)
  shopName?: string; // Partner shop name
  shopDiscount?: number; // Percentage discount at partner shop
  // National/International/Destruction specific
  cities?: string[]; // List of cities for multi-city tours
  countries?: string[]; // List of countries for international/destruction tours
  transportInfo?: string; // How participants will travel
  accommodationInfo?: string; // Accommodation recommendations
  // Organizer contact (for destruction tours)
  organizerContact?: string; // Contact details for the organizer
  // Destruction Tour specific
  startDate?: number; // Unix timestamp - when competition starts (challenges revealed)
  endDate?: number; // Unix timestamp - when competition ends
  entryFee?: number; // Sats per team
  prizePool?: number; // Total prize in sats
  prizeDistribution?: { place: number; percentage: number }[]; // e.g., [{place: 1, percentage: 50}]
  maxTeams?: number;
  minTeamSize?: number;
  maxTeamSize?: number;
  challenges?: DestructionChallenge[];
  acceptedClipSources?: ('blossom' | 'youtube' | 'instagram' | 'any')[]; // What clip sources organizer accepts
  // Film release options (for destruction tours)
  filmRelease?: {
    atShops: boolean; // Teams' films can premiere at local skate shops
    online: boolean; // Films also released online
    releaseDate?: number; // Unix timestamp for film release (after competition ends)
  };
  // Sponsors (for future use)
  sponsors?: TourSponsor[];
  featuredUntil?: number; // Featured tour listing expiry (unix seconds), if paid
  createdAt: number;
  event: NostrEvent;
}

// Tour sponsor interface
export interface TourSponsor {
  name: string;
  logo?: string;
  url?: string;
  tier?: 'title' | 'gold' | 'silver' | 'challenge' | 'partner';
  challengeId?: string; // If sponsoring a specific challenge
}

export function parseSkateCoach(event: NostrEvent): SkateCoach | null {
  if (event.kind !== SKATE_COACH_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  if (!d || !title) return null;
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const image = event.tags.find(([name]) => name === 'image')?.[1];
  const skills = event.tags.filter(([name, value]) => name === 't' && value !== 'skatecoach').map(([, value]) => value);
  // Repeatable, deduped string tags (formats/levels/ages/credentials/languages/availability).
  const values = (name: string): string[] => [
    ...new Set(
      event.tags.filter(([n, v]) => n === name && !!v?.trim()).map(([, v]) => v.trim().toLowerCase()),
    ),
  ];
  const formats = values('format');
  const levels = values('level');
  const ageGroups = values('age');
  const credentials = values('cert');
  const certNote = event.tags.find(([name]) => name === 'cert_note')?.[1];
  // Languages are proper nouns — preserve case (no lowercasing).
  const languages = event.tags
    .filter(([n, v]) => n === 'language' && !!v?.trim())
    .map(([, v]) => v.trim())
    .filter((v, i, arr) => arr.indexOf(v) === i);
  const availability = values('availability');
  const booking = event.tags.find(([name]) => name === 'booking')?.[1];
  // Portfolio gallery (`photo` tags) — URLs are case-sensitive, so no lowercasing.
  const photos = event.tags
    .filter(([n, v]) => n === 'photo' && !!v?.trim())
    .map(([, v]) => v.trim())
    .filter((v, i, arr) => arr.indexOf(v) === i)
    .slice(0, 12);
  const video = event.tags.find(([name]) => name === 'video')?.[1];
  const rateAmount = event.tags.find(([name]) => name === 'rate_amount')?.[1];
  const rateCurrency = event.tags.find(([name]) => name === 'rate_currency')?.[1];
  const rateUnit = event.tags.find(([name]) => name === 'rate_unit')?.[1];
  const paymentMethods = values('payment_method');
  const paymentNote = event.tags.find(([name]) => name === 'payment_note')?.[1];
  const bookingFee = event.tags.find(([name]) => name === 'booking_fee')?.[1];
  const bookingFeeCurrency = event.tags.find(([name]) => name === 'booking_fee_currency')?.[1];
  const payWhatYouCan = event.tags.some(([name, value]) => name === 'pay_what_you_can' && value === 'true');
  const experience = event.tags.find(([name]) => name === 'experience')?.[1];
  const rate = event.tags.find(([name]) => name === 'rate')?.[1];
  const phone = event.tags.find(([name]) => name === 'phone')?.[1];
  const email = event.tags.find(([name]) => name === 'email')?.[1];
  const website = event.tags.find(([name]) => name === 'website')?.[1];
  const instagram = event.tags.find(([name]) => name === 'instagram')?.[1];
  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];
  const noffer = isValidNoffer(nofferTag) ? nofferTag : undefined;
  const entityType = parseEntityType(event.tags.find(([name]) => name === 'entity')?.[1]);
  const members = parseMemberPubkeys(event);
  // Extract spot references (a tags pointing to kind 30818 spots)
  const spotRefs = event.tags
    .filter(([name, value]) => name === 'a' && value?.startsWith('30818:'))
    .map(([, value]) => value);

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    bio: event.content.slice(0, MAX_DESCRIPTION_LEN),
    location,
    geohash,
    image,
    skills,
    experience,
    rate,
    phone,
    email,
    website,
    instagram,
    noffer,
    entityType,
    members,
    spotRefs: spotRefs.length > 0 ? spotRefs : undefined,
    formats,
    levels,
    ageGroups,
    credentials,
    certNote,
    languages,
    availability,
    booking,
    photos,
    video,
    rateAmount,
    rateCurrency,
    rateUnit,
    paymentMethods,
    paymentNote,
    bookingFee,
    bookingFeeCurrency,
    payWhatYouCan,
    crewRef: parseCrewRef(event),
    featuredUntil: parseFeaturedUntil(event),
    createdAt: event.created_at,
    event,
  };
}

export function parseSkateFilmer(event: NostrEvent): SkateFilmer | null {
  if (event.kind !== SKATE_FILMER_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  if (!d || !title) return null;
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const image = event.tags.find(([name]) => name === 'image')?.[1];
  const skills = event.tags.filter(([name, value]) => name === 't' && value !== 'skatefilmer').map(([, value]) => value);
  const experience = event.tags.find(([name]) => name === 'experience')?.[1];
  const rate = event.tags.find(([name]) => name === 'rate')?.[1];
  const phone = event.tags.find(([name]) => name === 'phone')?.[1];
  const email = event.tags.find(([name]) => name === 'email')?.[1];
  const website = event.tags.find(([name]) => name === 'website')?.[1];
  const portfolio = event.tags.find(([name]) => name === 'portfolio')?.[1];
  const social = event.tags.find(([name]) => name === 'social')?.[1];
  const gear = event.tags.find(([name]) => name === 'gear')?.[1];
  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];
  const noffer = isValidNoffer(nofferTag) ? nofferTag : undefined;
  const entityType = parseEntityType(event.tags.find(([name]) => name === 'entity')?.[1]);
  const members = parseMemberPubkeys(event);
  // Extract spot references (a tags pointing to kind 30818 spots)
  const spotRefs = event.tags
    .filter(([name, value]) => name === 'a' && value?.startsWith('30818:'))
    .map(([, value]) => value);

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    bio: event.content.slice(0, MAX_DESCRIPTION_LEN),
    location,
    geohash,
    image,
    skills,
    experience,
    rate,
    phone,
    email,
    website,
    portfolio,
    social,
    gear,
    noffer,
    entityType,
    members,
    spotRefs: spotRefs.length > 0 ? spotRefs : undefined,
    crewRef: parseCrewRef(event),
    featuredUntil: parseFeaturedUntil(event),
    createdAt: event.created_at,
    event,
  };
}

export function parseSkateEditor(event: NostrEvent): SkateEditor | null {
  if (event.kind !== SKATE_EDITOR_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  if (!d || !title) return null;
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const image = event.tags.find(([name]) => name === 'image')?.[1];
  const skills = event.tags.filter(([name, value]) => name === 't' && value !== 'skateeditor').map(([, value]) => value);
  const experience = event.tags.find(([name]) => name === 'experience')?.[1];
  const rate = event.tags.find(([name]) => name === 'rate')?.[1];
  const phone = event.tags.find(([name]) => name === 'phone')?.[1];
  const email = event.tags.find(([name]) => name === 'email')?.[1];
  const website = event.tags.find(([name]) => name === 'website')?.[1];
  const portfolio = event.tags.find(([name]) => name === 'portfolio')?.[1];
  const social = event.tags.find(([name]) => name === 'social')?.[1];
  const hardware = event.tags.find(([name]) => name === 'hardware')?.[1];
  const software = event.tags.find(([name]) => name === 'software')?.[1];
  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];
  const noffer = isValidNoffer(nofferTag) ? nofferTag : undefined;
  const entityType = parseEntityType(event.tags.find(([name]) => name === 'entity')?.[1]);
  const members = parseMemberPubkeys(event);

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    bio: event.content.slice(0, MAX_DESCRIPTION_LEN),
    location,
    geohash,
    image,
    skills,
    experience,
    rate,
    phone,
    email,
    website,
    portfolio,
    social,
    hardware,
    software,
    noffer,
    entityType,
    members,
    crewRef: parseCrewRef(event),
    featuredUntil: parseFeaturedUntil(event),
    createdAt: event.created_at,
    event,
  };
}

export function parseSkatePhotographer(event: NostrEvent): SkatePhotographer | null {
  if (event.kind !== SKATE_PHOTOGRAPHER_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  if (!d || !title) return null;
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const image = event.tags.find(([name]) => name === 'image')?.[1];
  const skills = event.tags.filter(([name, value]) => name === 't' && value !== 'skatephotographer').map(([, value]) => value);
  const experience = event.tags.find(([name]) => name === 'experience')?.[1];
  const rate = event.tags.find(([name]) => name === 'rate')?.[1];
  const phone = event.tags.find(([name]) => name === 'phone')?.[1];
  const email = event.tags.find(([name]) => name === 'email')?.[1];
  const website = event.tags.find(([name]) => name === 'website')?.[1];
  const portfolio = event.tags.find(([name]) => name === 'portfolio')?.[1];
  const social = event.tags.find(([name]) => name === 'social')?.[1];
  const gear = event.tags.find(([name]) => name === 'gear')?.[1];
  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];
  const noffer = isValidNoffer(nofferTag) ? nofferTag : undefined;
  const entityType = parseEntityType(event.tags.find(([name]) => name === 'entity')?.[1]);
  const members = parseMemberPubkeys(event);
  const spotRefs = event.tags
    .filter(([name, value]) => name === 'a' && value?.startsWith('30818:'))
    .map(([, value]) => value);

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    bio: event.content.slice(0, MAX_DESCRIPTION_LEN),
    location,
    geohash,
    image,
    skills,
    experience,
    rate,
    phone,
    email,
    website,
    portfolio,
    social,
    gear,
    noffer,
    entityType,
    members,
    spotRefs: spotRefs.length > 0 ? spotRefs : undefined,
    crewRef: parseCrewRef(event),
    featuredUntil: parseFeaturedUntil(event),
    createdAt: event.created_at,
    event,
  };
}

export function parseSkateBuilder(event: NostrEvent): SkateBuilder | null {
  if (event.kind !== SKATE_BUILDER_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  if (!d || !title) return null;
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const image = event.tags.find(([name]) => name === 'image')?.[1];
  const skills = event.tags.filter(([name, value]) => name === 't' && value !== 'skatebuilder').map(([, value]) => value);
  const experience = event.tags.find(([name]) => name === 'experience')?.[1];
  const rate = event.tags.find(([name]) => name === 'rate')?.[1];
  const phone = event.tags.find(([name]) => name === 'phone')?.[1];
  const email = event.tags.find(([name]) => name === 'email')?.[1];
  const website = event.tags.find(([name]) => name === 'website')?.[1];
  const portfolio = event.tags.find(([name]) => name === 'portfolio')?.[1];
  const social = event.tags.find(([name]) => name === 'social')?.[1];
  const gear = event.tags.find(([name]) => name === 'gear')?.[1];
  const serviceArea = event.tags.find(([name]) => name === 'service_area')?.[1];
  const insured = event.tags.some(([name, value]) => name === 'insured' && value === 'true');
  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];
  const noffer = isValidNoffer(nofferTag) ? nofferTag : undefined;
  const entityType = parseEntityType(event.tags.find(([name]) => name === 'entity')?.[1]);
  const members = parseMemberPubkeys(event);
  const spotRefs = event.tags
    .filter(([name, value]) => name === 'a' && value?.startsWith('30818:'))
    .map(([, value]) => value);

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    bio: event.content.slice(0, MAX_DESCRIPTION_LEN),
    location,
    geohash,
    image,
    skills,
    experience,
    rate,
    phone,
    email,
    website,
    portfolio,
    social,
    gear,
    serviceArea,
    insured,
    noffer,
    entityType,
    members,
    spotRefs: spotRefs.length > 0 ? spotRefs : undefined,
    crewRef: parseCrewRef(event),
    featuredUntil: parseFeaturedUntil(event),
    createdAt: event.created_at,
    event,
  };
}

/**
 * Shared parser for the "simple craft" Lab profiles that all follow the common
 * base schema (title + bio + t-tag skills + contact/links), distinguished only
 * by kind and self-tag. Returns the common fields; callers layer craft-specific
 * extras on top.
 */
function parseCraftBase(event: NostrEvent, selfTag: string) {
  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];
  if (!d || !title) return null;
  if (title.trim().length < MIN_TITLE_LEN || title.length > MAX_TITLE_LEN) return null;

  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title: title.slice(0, MAX_TITLE_LEN),
    bio: event.content.slice(0, MAX_DESCRIPTION_LEN),
    location: clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN),
    geohash: event.tags.find(([name]) => name === 'g')?.[1],
    image: event.tags.find(([name]) => name === 'image')?.[1],
    skills: event.tags.filter(([name, value]) => name === 't' && value !== selfTag).map(([, value]) => value),
    experience: event.tags.find(([name]) => name === 'experience')?.[1],
    rate: event.tags.find(([name]) => name === 'rate')?.[1],
    phone: event.tags.find(([name]) => name === 'phone')?.[1],
    email: event.tags.find(([name]) => name === 'email')?.[1],
    website: event.tags.find(([name]) => name === 'website')?.[1],
    portfolio: event.tags.find(([name]) => name === 'portfolio')?.[1],
    social: event.tags.find(([name]) => name === 'social')?.[1],
    noffer: isValidNoffer(nofferTag) ? nofferTag : undefined,
    entityType: parseEntityType(event.tags.find(([name]) => name === 'entity')?.[1]),
    members: parseMemberPubkeys(event),
    crewRef: parseCrewRef(event),
    featuredUntil: parseFeaturedUntil(event),
    createdAt: event.created_at,
    event,
  };
}

export function parseSkateArtist(event: NostrEvent): SkateArtist | null {
  if (event.kind !== SKATE_ARTIST_KIND) return null;
  const base = parseCraftBase(event, 'skateartist');
  if (!base) return null;
  return base;
}

export function parseSkateDesigner(event: NostrEvent): SkateDesigner | null {
  if (event.kind !== SKATE_DESIGNER_KIND) return null;
  const base = parseCraftBase(event, 'skateclothing');
  if (!base) return null;
  return base;
}

export function parseSkateTransport(event: NostrEvent): SkateTransport | null {
  if (event.kind !== SKATE_TRANSPORT_KIND) return null;
  const base = parseCraftBase(event, 'skatetransport');
  if (!base) return null;
  return base;
}

export function parseSkateGraffiti(event: NostrEvent): SkateGraffiti | null {
  if (event.kind !== SKATE_GRAFFITI_KIND) return null;
  const base = parseCraftBase(event, 'skategraffiti');
  if (!base) return null;
  const spotRefs = event.tags
    .filter(([name, value]) => name === 'a' && value?.startsWith('30818:'))
    .map(([, value]) => value);
  return {
    ...base,
    crew: clampStr(event.tags.find(([name]) => name === 'crew')?.[1], 100),
    spotRefs: spotRefs.length > 0 ? spotRefs : undefined,
  };
}

export function parseSkateTattoo(event: NostrEvent): SkateTattoo | null {
  if (event.kind !== SKATE_TATTOO_KIND) return null;
  const base = parseCraftBase(event, 'skatetattoo');
  if (!base) return null;
  return {
    ...base,
    studio: clampStr(event.tags.find(([name]) => name === 'studio')?.[1], MAX_LOCATION_LEN),
    booksOpen: event.tags.some(([name, value]) => name === 'books_open' && value === 'true'),
  };
}

export function parseSkateTrainer(event: NostrEvent): SkateTrainer | null {
  if (event.kind !== SKATE_TRAINER_KIND) return null;
  const base = parseCraftBase(event, 'skatetrainer');
  if (!base) return null;
  return {
    ...base,
    credentials: clampStr(event.tags.find(([name]) => name === 'credentials')?.[1], MAX_LOCATION_LEN),
    remote: event.tags.some(([name, value]) => name === 'remote' && value === 'true'),
  };
}

export function parseSkateMusician(event: NostrEvent): SkateMusician | null {
  if (event.kind !== SKATE_MUSICIAN_KIND) return null;
  const base = parseCraftBase(event, 'skatemusician');
  if (!base) return null;
  const httpOnly = (v?: string) => (v && /^https?:\/\//i.test(v.trim()) ? v.trim() : undefined);
  return {
    ...base,
    actType: event.tags.find(([name]) => name === 'act')?.[1],
    spotify: httpOnly(event.tags.find(([name]) => name === 'spotify')?.[1]),
    bandcamp: httpOnly(event.tags.find(([name]) => name === 'bandcamp')?.[1]),
    soundcloud: httpOnly(event.tags.find(([name]) => name === 'soundcloud')?.[1]),
    youtube: httpOnly(event.tags.find(([name]) => name === 'youtube')?.[1]),
  };
}

export function parseSkateCrew(event: NostrEvent): SkateCrew | null {
  if (event.kind !== SKATE_CREW_KIND) return null;

  const hasCrewTag = event.tags.some(([name, value]) => name === 't' && value === 'skatecrew');
  if (!hasCrewTag) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const name = event.tags.find(([name]) => name === 'title')?.[1] || event.tags.find(([name]) => name === 'name')?.[1];

  if (!d || !name) return null;
  if (name.trim().length < MIN_TITLE_LEN || name.length > MAX_TITLE_LEN) return null;

  const location = clampStr(event.tags.find(([name]) => name === 'location')?.[1], MAX_LOCATION_LEN);
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const image = event.tags.find(([name]) => name === 'image')?.[1];
  // Vibes are `t` tags that aren't the crew marker, a crew-focus scene tag, or
  // the crew-agent marker.
  const vibes = event.tags
    .filter(([name, value]) =>
      name === 't' && value !== 'skatecrew' && value !== 'crew-agent' && !CREW_FOCUS_FROM_TAG[value]
    )
    .map(([, value]) => value);
  // Lab scene focus — first matching crew-focus `t` tag wins, else 'mixed'.
  const focusTag = event.tags.find(([name, value]) => name === 't' && !!CREW_FOCUS_FROM_TAG[value])?.[1];
  const focus: CrewFocus = focusTag ? CREW_FOCUS_FROM_TAG[focusTag] : 'mixed';
  // Crew AI agent enabled when the `crew-agent` marker tag is present.
  const agentEnabled = event.tags.some(([name, value]) => name === 't' && value === 'crew-agent');
  const founded = event.tags.find(([name]) => name === 'founded')?.[1];
  const website = event.tags.find(([name]) => name === 'website')?.[1];
  const instagram = event.tags.find(([name]) => name === 'instagram')?.[1];
  // Optional crew band / music project — many crews double as local bands.
  const bandName = clampStr(event.tags.find(([name]) => name === 'band')?.[1], 100);
  const bandUrlRaw = event.tags.find(([name]) => name === 'band-url')?.[1]?.trim();
  const bandUrl = bandUrlRaw && /^https?:\/\//i.test(bandUrlRaw) ? bandUrlRaw : undefined;
  const socials = event.tags
    .filter(([name, value]) => name === 'social' && !!value?.trim())
    .map(([, value]) => value.trim());
  const social = socials[0];
  const nofferTag = event.tags.find(([name]) => name === 'noffer')?.[1];
  const noffer = isValidNoffer(nofferTag) ? nofferTag : undefined;
  // Crew NIP-05 handles. Unlike a kind-0 profile (one `nip05` string), a crew is
  // our own tag convention, so it can carry several — each verified against the
  // founder's pubkey. Normalise, dedupe, drop malformed, cap at 5.
  const nip05s = [...new Set(
    event.tags
      .filter(([name, value]) => name === 'nip05' && !!value?.trim())
      .map(([, value]) => value.trim().toLowerCase())
      .filter((v) => /^[a-z0-9\-_.]+@[a-z0-9.-]+\.[a-z]{2,}$/.test(v)),
  )].slice(0, 5);
  const nip05 = clampStr(nip05s[0], 100);
  const members = parseMemberPubkeys(event);
  // Admins must be a subset of claimed members.
  const admins = parseAdminPubkeys(event).filter((pk) => members.includes(pk));
  const spotRefs = event.tags
    .filter(([name, value]) => name === 'a' && value?.startsWith('30818:'))
    .map(([, value]) => value);
  const labRefs = parseLabRefs(event);
  // NIP-75 zap goal linked to this crew (crew treasury / funding goal).
  const goalRef = event.tags.find(([name, value]) => name === 'goal' && /^[0-9a-f]{64}$/i.test(value ?? ''))?.[1];
  // "Looking for" — Lab craft slugs the crew is currently hiring for.
  const lookingFor = event.tags
    .filter(([name, value]) => name === 'looking-for' && !!value?.trim())
    .map(([, value]) => value.trim().toLowerCase());
  // Sponsoring shop — a NIP-15 stall coordinate (30017:pubkey:d).
  const sponsorRef = event.tags.find(
    ([name, value]) => name === 'sponsor' && value?.startsWith(`${SKATE_SHOP_KIND}:`),
  )?.[1];
  // Cordn / MLS coordinator for the crew's encrypted group chat.
  // Tag shape: ['coordinator', <url>, <coordinator-pubkey?>, <operator-pubkey?>]
  const coordinatorTag = event.tags.find(([name, value]) => name === 'coordinator' && !!value?.trim());
  const coordinator: CrewCoordinator | undefined = coordinatorTag
    ? {
        url: coordinatorTag[1].trim(),
        pubkey: /^[0-9a-f]{64}$/i.test(coordinatorTag[2] ?? '') ? coordinatorTag[2] : undefined,
        operator: /^[0-9a-f]{64}$/i.test(coordinatorTag[3] ?? '') ? coordinatorTag[3] : undefined,
      }
    : undefined;
  // Crew video / montage — only kept if it parses as a YouTube/Instagram URL.
  // Cordn group link for the crew's MLS chat (optional): ['cordn', <ref-or-url>].
  const cordnGroup = event.tags.find(([name, value]) => name === 'cordn' && !!value?.trim())?.[1]?.trim() || undefined;

  const videoRaw = event.tags.find(([name]) => name === 'video')?.[1]?.trim();
  const videoUrl = videoRaw && parseCrewVideo(videoRaw) ? videoRaw : undefined;
  // Skate roles (filmer/photographer/…) — only for people actually on the roster.
  const memberSet = new Set([event.pubkey.toLowerCase(), ...members]);
  const crewRoles = parseCrewRoles(event).filter((r) => memberSet.has(r.pubkey));

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    name: name.slice(0, MAX_TITLE_LEN),
    bio: event.content.slice(0, MAX_DESCRIPTION_LEN),
    location,
    geohash,
    image,
    vibes,
    focus,
    agentEnabled,
    founded,
    website,
    instagram,
    bandName,
    bandUrl,
    social,
    socials,
    nip05,
    nip05s,
    noffer,
    members,
    admins,
    spotRefs,
    labRefs,
    goalRef,
    lookingFor,
    sponsorRef,
    coordinator,
    cordnGroup,
    videoUrl,
    crewRoles,
    createdAt: event.created_at,
    event,
  };
}

export function parseSkateTour(event: NostrEvent): SkateTour | null {
  if (event.kind !== SKATE_TOUR_KIND) return null;

  // Must have 'skate-tour' tag
  const hasTourTag = event.tags.some(([name, value]) => name === 't' && value === 'skate-tour');
  if (!hasTourTag) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  if (!d || !title) return null;

  // Tour category - default to 'local' for backwards compatibility
  const categoryTag = event.tags.find(([name]) => name === 'tour-category')?.[1];
  const category = (categoryTag as TourCategory) || 'local';

  const location = event.tags.find(([name]) => name === 'location')?.[1];
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const meetingPoint = event.tags.find(([name]) => name === 'meeting-point')?.[1];
  const meetingCoordsTag = event.tags.find(([name]) => name === 'meeting-point-coords');
  const mpLat = Number(meetingCoordsTag?.[1]);
  const mpLon = Number(meetingCoordsTag?.[2]);
  const meetingPointCoords = meetingCoordsTag && Number.isFinite(mpLat) && Number.isFinite(mpLon)
    ? { lat: mpLat, lon: mpLon }
    : undefined;
  const image = event.tags.find(([name]) => name === 'image')?.[1];
  
  const durationTag = event.tags.find(([name]) => name === 'duration');
  const durationNum = durationTag ? Number(durationTag[1]) : undefined;
  const duration = durationNum !== undefined && Number.isFinite(durationNum) ? durationNum : undefined;
  const durationUnit = durationTag?.[2] as SkateTour['durationUnit'] || 'hours';
  
  const skillLevel = event.tags.find(([name]) => name === 'skill-level')?.[1] as SkateTour['skillLevel'];
  
  // Filter out category tags when getting spot types
  const categoryTags = ['skate-tour', 'local-tour', 'national-tour', 'international-tour', 'destruction-tour'];
  const spotTypes = event.tags
    .filter(([name, value]) => name === 't' && !categoryTags.includes(value))
    .map(([, value]) => value);
  
  const maxGroupTag = event.tags.find(([name]) => name === 'max-group')?.[1];
  const maxGroupSize = maxGroupTag ? parseInt(maxGroupTag) : undefined;
  
  const priceTag = event.tags.find(([name]) => name === 'price')?.[1];
  const price = priceTag ? parseInt(priceTag) : undefined;
  
  const availability = event.tags.find(([name]) => name === 'available')?.[1];
  
  const languagesTag = event.tags.find(([name]) => name === 'languages');
  const languages = languagesTag ? languagesTag.slice(1) : undefined;
  
  const shopRef = event.tags.find(([name]) => name === 'shop')?.[1];
  const shopName = event.tags.find(([name]) => name === 'shop-name')?.[1];
  const shopDiscountTag = event.tags.find(([name]) => name === 'shop-discount')?.[1];
  const shopDiscount = shopDiscountTag ? parseInt(shopDiscountTag) : undefined;

  // National/International fields
  const citiesTag = event.tags.find(([name]) => name === 'cities');
  const cities = citiesTag ? citiesTag.slice(1) : undefined;
  
  const countriesTag = event.tags.find(([name]) => name === 'countries');
  const countries = countriesTag ? countriesTag.slice(1) : undefined;
  
  const transportInfo = event.tags.find(([name]) => name === 'transport')?.[1];
  const accommodationInfo = event.tags.find(([name]) => name === 'accommodation')?.[1];
  const organizerContact = event.tags.find(([name]) => name === 'organizer-contact')?.[1];

  // Destruction Tour fields
  const startDateTag = event.tags.find(([name]) => name === 'start-date')?.[1];
  const startDate = startDateTag ? parseInt(startDateTag) : undefined;
  
  const endDateTag = event.tags.find(([name]) => name === 'end-date')?.[1];
  const endDate = endDateTag ? parseInt(endDateTag) : undefined;
  
  const entryFeeTag = event.tags.find(([name]) => name === 'entry-fee')?.[1];
  const entryFee = entryFeeTag ? parseInt(entryFeeTag) : undefined;
  
  const prizePoolTag = event.tags.find(([name]) => name === 'prize-pool')?.[1];
  const prizePool = prizePoolTag ? parseInt(prizePoolTag) : undefined;
  
  // Parse prize distribution: ["prize-dist", "1", "50", "2", "30", "3", "20"]
  const prizeDistTag = event.tags.find(([name]) => name === 'prize-dist');
  let prizeDistribution: { place: number; percentage: number }[] | undefined;
  if (prizeDistTag && prizeDistTag.length > 1) {
    prizeDistribution = [];
    for (let i = 1; i < prizeDistTag.length; i += 2) {
      if (prizeDistTag[i] && prizeDistTag[i + 1]) {
        prizeDistribution.push({
          place: parseInt(prizeDistTag[i]),
          percentage: parseInt(prizeDistTag[i + 1]),
        });
      }
    }
  }
  
  const maxTeamsTag = event.tags.find(([name]) => name === 'max-teams')?.[1];
  const maxTeams = maxTeamsTag ? parseInt(maxTeamsTag) : undefined;
  
  const minTeamSizeTag = event.tags.find(([name]) => name === 'min-team-size')?.[1];
  const minTeamSize = minTeamSizeTag ? parseInt(minTeamSizeTag) : undefined;
  
  const maxTeamSizeTag = event.tags.find(([name]) => name === 'max-team-size')?.[1];
  const maxTeamSize = maxTeamSizeTag ? parseInt(maxTeamSizeTag) : undefined;
  
  // Parse challenges from tags - format: ["challenge", "id", "title", "description", "points", "revealDate"]
  // All challenges are secret until the tour start date by default
  let challenges: DestructionChallenge[] | undefined;
  const challengesTags = event.tags.filter(([name]) => name === 'challenge');
  if (challengesTags.length > 0) {
    challenges = challengesTags.map(tag => ({
      id: tag[1] || '',
      title: tag[2] || '',
      description: tag[3] || undefined,
      points: parseInt(tag[4] || '0'),
      isSecret: true, // All challenges are secret until start date
      revealDate: tag[5] ? parseInt(tag[5]) : startDate, // Defaults to tour start date
    }));
  }
  
  // Parse accepted clip sources
  const clipSourcesTag = event.tags.find(([name]) => name === 'clip-sources');
  const acceptedClipSources = clipSourcesTag 
    ? clipSourcesTag.slice(1) as ('blossom' | 'youtube' | 'instagram' | 'any')[]
    : undefined;

  // Parse film release options - format: ["film-release", "shops", "online"]
  const filmReleaseTag = event.tags.find(([name]) => name === 'film-release');
  const filmReleaseDateTag = event.tags.find(([name]) => name === 'film-release-date')?.[1];
  let filmRelease: SkateTour['filmRelease'];
  if (filmReleaseTag) {
    const options = filmReleaseTag.slice(1);
    filmRelease = {
      atShops: options.includes('shops'),
      online: options.includes('online'),
      releaseDate: filmReleaseDateTag ? parseInt(filmReleaseDateTag) : undefined,
    };
  }

  // Parse sponsors - format: ["sponsor", "tier", "name", "logo-url", "website-url", "challengeId?"]
  const sponsorTags = event.tags.filter(([name]) => name === 'sponsor');
  let sponsors: TourSponsor[] | undefined;
  if (sponsorTags.length > 0) {
    sponsors = sponsorTags.map(tag => ({
      tier: tag[1] as TourSponsor['tier'],
      name: tag[2] || '',
      logo: tag[3] || undefined,
      url: tag[4] || undefined,
      challengeId: tag[5] || undefined,
    }));
  }

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title,
    description: event.content,
    category,
    location,
    geohash,
    meetingPoint,
    meetingPointCoords,
    image,
    duration,
    durationUnit,
    skillLevel,
    spotTypes,
    maxGroupSize,
    price,
    availability,
    languages,
    shopRef,
    shopName,
    shopDiscount,
    cities,
    countries,
    transportInfo,
    accommodationInfo,
    organizerContact,
    startDate,
    endDate,
    entryFee,
    prizePool,
    prizeDistribution,
    maxTeams,
    minTeamSize,
    maxTeamSize,
    challenges,
    acceptedClipSources,
    filmRelease,
    sponsors,
    featuredUntil: parseFeaturedUntil(event),
    createdAt: event.created_at,
    event,
  };
}

// Tour skill levels
export const TOUR_SKILL_LEVELS = {
  beginner: { label: 'Beginner', emoji: '🌱', description: 'New to skating or basic tricks' },
  intermediate: { label: 'Intermediate', emoji: '🔥', description: 'Comfortable with most terrain' },
  advanced: { label: 'Advanced', emoji: '💀', description: 'Experienced skater, gnarly spots' },
  all: { label: 'All Levels', emoji: '🛹', description: 'Suitable for everyone' },
} as const;

// Tour spot types (what kind of spots the tour covers)
export const TOUR_SPOT_TYPES = {
  street: { label: 'Street', emoji: '🛣️' },
  park: { label: 'Park', emoji: '🏟️' },
  diy: { label: 'DIY', emoji: '🔨' },
  transition: { label: 'Transition', emoji: '🌊' },
  hidden: { label: 'Hidden Gems', emoji: '💎' },
} as const;

// Tour categories
export const TOUR_CATEGORIES = {
  local: { 
    label: 'Local Tour', 
    emoji: '🏠', 
    color: '#06b6d4', // Cyan
    description: 'Show hidden spots in your city',
    durationLabel: '2-8 hours',
  },
  national: { 
    label: 'National Tour', 
    emoji: '🚐', 
    color: '#f97316', // Orange
    description: 'Multi-city road trips across the country',
    durationLabel: '2-14 days',
  },
  international: { 
    label: 'International Tour', 
    emoji: '✈️', 
    color: '#a855f7', // Purple
    description: 'Cross-border adventures across multiple countries',
    durationLabel: '1-8 weeks',
  },
  destruction: { 
    label: 'World Destruction', 
    emoji: '💀', 
    color: '#ef4444', // Red
    description: 'KOTR-style global team competition',
    durationLabel: '1-12 months',
  },
} as const;

export type TourCategory = keyof typeof TOUR_CATEGORIES;

// Destruction Tour Challenge interface
export interface DestructionChallenge {
  id: string;
  title: string;
  description?: string;
  points: number;
  isSecret?: boolean; // Hidden until competition starts (all challenges secret by default)
  revealDate?: number; // Unix timestamp when challenge becomes visible (defaults to tour start date)
}

// Destruction Tour Team interface
export interface DestructionTeam {
  id: string;
  name: string;
  members: string[]; // pubkeys of team members
  captainPubkey: string;
  points: number;
  completedChallenges: string[]; // Challenge IDs
}

// Destruction Tour Submission (clip/proof)
export interface DestructionSubmission {
  id: string;
  teamId: string;
  challengeId: string;
  submitterPubkey: string;
  videoUrl?: string; // External link (YouTube, Instagram, etc.)
  blossomUrl?: string; // Blossom-hosted video
  description?: string;
  submittedAt: number;
  status: 'pending' | 'approved' | 'rejected';
  pointsAwarded?: number;
}

// Gear Categories
export const GEAR_CATEGORIES = {
  deck: 'Deck',
  trucks: 'Trucks',
  wheels: 'Wheels',
  bearings: 'Bearings',
  shoes: 'Skate Shoes',
  clothing: 'Clothing',
  protective: 'Protective Gear',
  stickers: 'Stickers',
  wax: 'Wax',
  tools: 'Tools',
  griptape: 'Griptape',
  rubbrick: 'Rub Brick',
} as const;

// Gear Conditions
export const GEAR_CONDITIONS = {
  new: { label: 'New', emoji: '🆕', description: 'Never used, still in packaging' },
  like_new: { label: 'Like New', emoji: '👍', description: 'Barely used, excellent condition' },
  good: { label: 'Good', emoji: '✅', description: 'Normal wear, functions perfectly' },
  well_used: { label: 'Well Used', emoji: '⚠️', description: 'Shows wear but still works' },
} as const;

// Price Types
export const PRICE_TYPES = {
  fixed: { label: 'Fixed Price', description: 'Set price in USD or sats' },
  free: { label: 'Free', description: 'Giving away' },
  trade: { label: 'Trade', description: 'Looking to swap' },
  offer: { label: 'Make Offer', description: 'Price negotiable' },
} as const;

// Listing Types
export const LISTING_TYPES = {
  selling: { label: 'Selling', emoji: '💰', description: 'Listing gear for sale' },
  wtb: { label: 'Want to Buy', emoji: '🔍', description: 'Looking for specific gear' },
} as const;

// Size Options by Category
export const SIZE_OPTIONS: Record<string, string[]> = {
  deck: ['7.5"', '7.75"', '8.0"', '8.125"', '8.25"', '8.38"', '8.5"', '8.75"', '9.0"+'],
  trucks: ['129', '139', '144', '149', '159'],
  wheels: ['50mm', '52mm', '54mm', '56mm', '58mm', '60mm'],
  shoes: ['US 6', 'US 6.5', 'US 7', 'US 7.5', 'US 8', 'US 8.5', 'US 9', 'US 9.5', 'US 10', 'US 10.5', 'US 11', 'US 11.5', 'US 12', 'US 13', 'US 14'],
  clothing: ['XS', 'S', 'M', 'L', 'XL', 'XXL'],
};

// Truck Heights
export const TRUCK_HEIGHTS = ['Low', 'Mid', 'High', 'Inverted'];

// Wheel Hardness
export const WHEEL_HARDNESS = ['78a', '87a', '92a', '97a', '99a', '101a'];

// Category-specific required fields for validation
export const CATEGORY_REQUIRED_FIELDS: Record<string, { size?: boolean; condition?: boolean }> = {
  deck: { size: true, condition: true },
  trucks: { size: true, condition: true },
  wheels: { size: true, condition: true },
  bearings: { condition: true },
  shoes: { size: true, condition: true },
  clothing: { size: true, condition: true },
  protective: { size: false, condition: true },
  stickers: { size: false, condition: false },
  wax: { size: false, condition: false },
  tools: { size: false, condition: true },
  griptape: { size: false, condition: true },
  rubbrick: { size: false, condition: true },
};

// Report reasons for NIP-56
export const LISTING_REPORT_REASONS = {
  category_mismatch: { label: 'Wrong Category', description: 'Item is listed in the wrong category' },
  misleading_description: { label: 'Misleading Description', description: 'Description does not match the actual item' },
  fake_photos: { label: 'Fake/Stolen Photos', description: 'Photos are stock images or stolen from elsewhere' },
  scam: { label: 'Suspected Scam', description: 'This listing appears to be a scam' },
  spam: { label: 'Spam/Duplicate', description: 'Spam or duplicate listing' },
  inappropriate: { label: 'Inappropriate Content', description: 'Contains inappropriate or offensive content' },
  counterfeit: { label: 'Counterfeit Goods', description: 'Item appears to be fake or counterfeit' },
} as const;

// Expiration Options (in days)
export const EXPIRATION_OPTIONS = [
  { value: 7, label: '7 days' },
  { value: 14, label: '14 days' },
  { value: 30, label: '30 days' },
];

// Currency Options (ISO 4217 codes + Bitcoin)
export const CURRENCY_OPTIONS = [
  // Crypto
  { code: 'sats', label: 'sats', symbol: '₿', region: 'Bitcoin' },
  { code: 'BTC', label: 'BTC', symbol: '₿', region: 'Bitcoin' },
  
  // Major Fiat - Americas
  { code: 'USD', label: 'USD', symbol: '$', region: 'United States' },
  { code: 'CAD', label: 'CAD', symbol: 'C$', region: 'Canada' },
  { code: 'MXN', label: 'MXN', symbol: '$', region: 'Mexico' },
  { code: 'BRL', label: 'BRL', symbol: 'R$', region: 'Brazil' },
  { code: 'ARS', label: 'ARS', symbol: '$', region: 'Argentina' },
  { code: 'CLP', label: 'CLP', symbol: '$', region: 'Chile' },
  { code: 'COP', label: 'COP', symbol: '$', region: 'Colombia' },
  { code: 'PEN', label: 'PEN', symbol: 'S/', region: 'Peru' },
  
  // Major Fiat - Europe
  { code: 'EUR', label: 'EUR', symbol: '€', region: 'Eurozone' },
  { code: 'GBP', label: 'GBP', symbol: '£', region: 'United Kingdom' },
  { code: 'CHF', label: 'CHF', symbol: 'Fr', region: 'Switzerland' },
  { code: 'SEK', label: 'SEK', symbol: 'kr', region: 'Sweden' },
  { code: 'NOK', label: 'NOK', symbol: 'kr', region: 'Norway' },
  { code: 'DKK', label: 'DKK', symbol: 'kr', region: 'Denmark' },
  { code: 'PLN', label: 'PLN', symbol: 'zł', region: 'Poland' },
  { code: 'CZK', label: 'CZK', symbol: 'Kč', region: 'Czech Republic' },
  { code: 'HUF', label: 'HUF', symbol: 'Ft', region: 'Hungary' },
  { code: 'RON', label: 'RON', symbol: 'lei', region: 'Romania' },
  
  // Major Fiat - Asia Pacific
  { code: 'JPY', label: 'JPY', symbol: '¥', region: 'Japan' },
  { code: 'CNY', label: 'CNY', symbol: '¥', region: 'China' },
  { code: 'KRW', label: 'KRW', symbol: '₩', region: 'South Korea' },
  { code: 'AUD', label: 'AUD', symbol: 'A$', region: 'Australia' },
  { code: 'NZD', label: 'NZD', symbol: 'NZ$', region: 'New Zealand' },
  { code: 'SGD', label: 'SGD', symbol: 'S$', region: 'Singapore' },
  { code: 'HKD', label: 'HKD', symbol: 'HK$', region: 'Hong Kong' },
  { code: 'TWD', label: 'TWD', symbol: 'NT$', region: 'Taiwan' },
  { code: 'THB', label: 'THB', symbol: '฿', region: 'Thailand' },
  { code: 'PHP', label: 'PHP', symbol: '₱', region: 'Philippines' },
  { code: 'IDR', label: 'IDR', symbol: 'Rp', region: 'Indonesia' },
  { code: 'MYR', label: 'MYR', symbol: 'RM', region: 'Malaysia' },
  { code: 'INR', label: 'INR', symbol: '₹', region: 'India' },
  
  // Middle East & Africa
  { code: 'AED', label: 'AED', symbol: 'د.إ', region: 'UAE' },
  { code: 'SAR', label: 'SAR', symbol: '﷼', region: 'Saudi Arabia' },
  { code: 'ILS', label: 'ILS', symbol: '₪', region: 'Israel' },
  { code: 'TRY', label: 'TRY', symbol: '₺', region: 'Turkey' },
  { code: 'ZAR', label: 'ZAR', symbol: 'R', region: 'South Africa' },
  { code: 'NGN', label: 'NGN', symbol: '₦', region: 'Nigeria' },
  { code: 'EGP', label: 'EGP', symbol: 'E£', region: 'Egypt' },
];

// Helper to get currency symbol from code
export function getCurrencySymbol(code: string): string {
  const currency = CURRENCY_OPTIONS.find(c => c.code === code);
  return currency?.symbol || code;
}

// Helper to format price with correct currency symbol
export function formatPrice(
  price: { amount: string; currency: string } | undefined,
  priceType?: string,
  t?: (key: string) => string,
): string {
  if (!price) {
    if (priceType === 'free') return t ? t('labelsUi.price.free') : 'FREE';
    if (priceType === 'trade') return t ? t('labelsUi.price.trade') : 'Trade';
    if (priceType === 'offer') return t ? t('labelsUi.price.makeOffer') : 'Make Offer';
    return t ? t('labelsUi.price.offer') : 'Offer';
  }
  
  const symbol = getCurrencySymbol(price.currency);
  
  // For Bitcoin/sats, show symbol before amount
  if (price.currency === 'sats' || price.currency === 'BTC') {
    return `${symbol}${price.amount}`;
  }
  
  // For most currencies, show symbol before amount
  return `${symbol}${price.amount} ${price.currency}`;
}

// NIP-99 Marketplace (Gear Swap)
export interface MarketplaceItem {
  id: string;
  pubkey: string;
  identifier: string;
  title: string;
  description: string;
  summary?: string;
  price?: {
    amount: string;
    currency: string;
    frequency?: string;
  };
  priceType?: 'fixed' | 'free' | 'trade' | 'offer';
  condition?: 'new' | 'like_new' | 'good' | 'well_used';
  listingType?: 'selling' | 'wtb';
  size?: string;
  /** How the deal is fulfilled: local pickup, shipping, or either. */
  fulfilment?: 'pickup' | 'ships' | 'both';
  /** Who pays postage, when the deal ships. */
  shipping?: 'buyer' | 'seller' | 'split';
  /** Seller asks the buyer to settle via Cashu escrow. */
  escrow?: 'required';
  /** NIP-13 proof-of-work difficulty (leading zero bits) on the event id. */
  powDifficulty?: number;
  expiration?: number; // Unix timestamp
  images: string[];
  location?: string;
  geohash?: string;
  category: string[];
  status?: string; // 'active' | 'sold' | 'pending'
  spotReference?: string; // 'a' tag pointing to spot event
  availability?: string; // When seller is at the spot
  createdAt: number;
  publishedAt?: number;
  event: NostrEvent;
}

// NIP-51 Spot Collections (Bookmark sets)
export interface SpotCollection {
  id: string;
  pubkey: string;
  identifier: string;
  title: string;
  description: string;
  image?: string;
  spotRefs: string[]; // Array of "a" tag references: "30818:pubkey:d-tag"
  createdAt: number;
  event: NostrEvent;
}

export function parseSpotCollection(event: NostrEvent): SpotCollection | null {
  if (event.kind !== SPOT_COLLECTION_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  // Must have skatespots tag to be a skate spot collection
  const hasSkatespotsTag = event.tags.some(
    ([name, value]) => name === 't' && value === 'skatespots'
  );
  if (!d || !title || !hasSkatespotsTag) return null;

  const description = event.tags.find(([name]) => name === 'description')?.[1] || event.content;
  const image = event.tags.find(([name]) => name === 'image')?.[1];

  // Get all "a" tags that reference spots (kind 30818)
  const spotRefs = event.tags
    .filter(([name, value]) => name === 'a' && value?.startsWith(`${SKATE_SPOT_KIND}:`))
    .map(([, value]) => value);

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title,
    description,
    image,
    spotRefs,
    createdAt: event.created_at,
    event,
  };
}

export function parseMarketplaceItem(event: NostrEvent): MarketplaceItem | null {
  if (event.kind !== MARKETPLACE_ITEM_KIND) return null;

  const d = event.tags.find(([name]) => name === 'd')?.[1];
  const title = event.tags.find(([name]) => name === 'title')?.[1];

  if (!d || !title) return null;

  const summary = event.tags.find(([name]) => name === 'summary')?.[1];
  const location = event.tags.find(([name]) => name === 'location')?.[1];
  const geohash = event.tags.find(([name]) => name === 'g')?.[1];
  const status = event.tags.find(([name]) => name === 'status')?.[1];
  const availability = event.tags.find(([name]) => name === 'available')?.[1];
  const spotReference = event.tags.find(([name]) => name === 'a')?.[1];
  const publishedAtTag = event.tags.find(([name]) => name === 'published_at')?.[1];
  
  // Parse new fields
  const priceType = event.tags.find(([name]) => name === 'price_type')?.[1] as MarketplaceItem['priceType'];
  const condition = event.tags.find(([name]) => name === 'condition')?.[1] as MarketplaceItem['condition'];
  const listingType = event.tags.find(([name]) => name === 'listing_type')?.[1] as MarketplaceItem['listingType'];
  const fulfilment = event.tags.find(([name]) => name === 'fulfilment')?.[1] as MarketplaceItem['fulfilment'];
  const shipping = event.tags.find(([name]) => name === 'shipping')?.[1] as MarketplaceItem['shipping'];
  const escrow = event.tags.find(([name]) => name === 'escrow')?.[1] as MarketplaceItem['escrow'];
  const powDifficulty = event.tags.some(([name]) => name === 'nonce')
    ? countLeadingZeroBits(event.id)
    : undefined;
  const size = event.tags.find(([name]) => name === 'size')?.[1];
  const expirationTag = event.tags.find(([name]) => name === 'expiration')?.[1];
  const expiration = expirationTag ? parseInt(expirationTag) : undefined;
  
  // Parse price tag: ["price", "40", "USD", "optional-frequency"]
  const priceTag = event.tags.find(([name]) => name === 'price');
  const price = priceTag ? {
    amount: priceTag[1] || '0',
    currency: priceTag[2] || 'USD',
    frequency: priceTag[3],
  } : undefined;

  // Parse images (NIP-58 format)
  const images = event.tags
    .filter(([name]) => name === 'image')
    .map(([, url]) => url);

  // Parse categories/tags
  const category = event.tags
    .filter(([name]) => name === 't')
    .map(([, value]) => value);

  return {
    id: event.id,
    pubkey: event.pubkey,
    identifier: d,
    title,
    description: event.content,
    summary,
    price,
    priceType,
    condition,
    listingType,
    fulfilment,
    shipping,
    escrow,
    powDifficulty,
    size,
    expiration,
    images,
    location,
    geohash,
    category,
    status,
    spotReference,
    availability,
    createdAt: event.created_at,
    publishedAt: publishedAtTag ? parseInt(publishedAtTag) : undefined,
    event,
  };
}

export interface SkateJudge {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;         // judge name / handle
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];      // format + specialty + level tags
  experience?: string;   // years judging
  rate?: string;         // booking rate for events
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;    // results archive / profile link
  social?: string;
  eventsJudged?: string; // freeform count / notable events judged
  noffer?: string;
  entityType: EntityType;
  members: string[];
  crewRef?: string;
  createdAt: number;
  event: NostrEvent;
}

export function parseSkateJudge(event: NostrEvent): SkateJudge | null {
  if (event.kind !== SKATE_JUDGE_KIND) return null;
  const base = parseCraftBase(event, 'skatejudge');
  if (!base) return null;
  return {
    ...base,
    eventsJudged: event.tags.find(([name]) => name === 'events_judged')?.[1],
  };
}

export interface SkateOrganizer {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;         // organizer / crew name
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];      // event types + services + scale tags
  experience?: string;   // years organizing
  rate?: string;         // fee / budget for putting on an event
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;    // past events gallery / results link
  social?: string;
  eventsHosted?: string; // freeform count / notable events run
  noffer?: string;
  entityType: EntityType;
  members: string[];
  crewRef?: string;
  createdAt: number;
  event: NostrEvent;
}

export function parseSkateOrganizer(event: NostrEvent): SkateOrganizer | null {
  if (event.kind !== SKATE_ORGANIZER_KIND) return null;
  const base = parseCraftBase(event, 'skateorganizer');
  if (!base) return null;
  return {
    ...base,
    eventsHosted: event.tags.find(([name]) => name === 'events_hosted')?.[1],
  };
}

export interface SkateBarber {
  id: string;
  pubkey: string;
  identifier: string;
  featuredUntil?: number;
  title: string;         // barber / shop name
  bio: string;
  geohash?: string;
  location?: string;
  image?: string;
  skills: string[];      // services + styles + settings tags
  experience?: string;   // years cutting
  rate?: string;         // price / cut
  phone?: string;
  email?: string;
  website?: string;
  portfolio?: string;    // Instagram / gallery of cuts
  social?: string;
  studio?: string;       // shop / studio name
  booksOpen?: boolean;   // currently taking bookings
  noffer?: string;
  entityType: EntityType;
  members: string[];
  crewRef?: string;
  createdAt: number;
  event: NostrEvent;
}

export function parseSkateBarber(event: NostrEvent): SkateBarber | null {
  if (event.kind !== SKATE_BARBER_KIND) return null;
  const base = parseCraftBase(event, 'skatebarber');
  if (!base) return null;
  return {
    ...base,
    studio: clampStr(event.tags.find(([name]) => name === 'studio')?.[1], MAX_LOCATION_LEN),
    booksOpen: event.tags.some(([name, value]) => name === 'books_open' && value === 'true'),
  };
}