/**
 * RiderCard — the card's data shape + the ONE preview component.
 *
 * The card itself is drawn by `@/lib/riderCardCanvas` (a single canvas
 * renderer), so the studio preview and the public `/#/card/:npub` view are
 * pixel-identical to what prints. There is intentionally NO second React
 * implementation of the card.
 */
import { useEffect, useState } from 'react';
import { Maximize2 } from 'lucide-react';
import { drawCardToCanvas, type CanvasCardData } from '@/lib/riderCardCanvas';
import type { ThemeId } from '@/lib/riderCard';
import { cn } from '@/lib/utils';

export interface BadgeAward {
  witnessName: string;
  witnessPubkey: string;
  skill: string;
  spotName?: string;
  timestamp: number;
}

export interface CardData {
  type: 'rider' | 'park' | 'crew' | 'event';
  theme: ThemeId;
  holographic: boolean;
  name: string;
  nip05?: string;
  avatar?: string;
  pubkey: string;
  npub: string;
  style: string;
  level?: string;
  sponsors: string;
  ridesFor: string;
  showCrews?: boolean;
  showLocal?: boolean;
  showRoles?: boolean;
  receivedBadges: BadgeAward[];
  verifyUrl?: string;
  accent?: string;
  logo?: string;
  side?: 'front' | 'back';
  crews?: { name: string; image?: string }[];
  local?: string;
  roles?: string[];
  crew?: CanvasCardData['crew'];
  event?: CanvasCardData['event'];
  issuerName: string;
  recipientName: string;
  accessLevel: string;
  validThru: string;
}

function toCanvasData(d: CardData): CanvasCardData {
  return {
    type: d.type,
    themeId: d.theme,
    accentOverride: d.accent,
    name: d.name,
    nip05: d.nip05,
    avatarUrl: d.avatar,
    logoUrl: d.logo,
    pubkey: d.pubkey,
    npub: d.npub,
    style: d.style,
    level: d.level,
    sponsors: d.sponsors,
    ridesFor: d.ridesFor,
    showCrews: d.showCrews ?? true,
    showLocal: d.showLocal ?? true,
    showRoles: d.showRoles ?? true,
    receivedBadges: d.receivedBadges,
    verifyUrl: d.verifyUrl,
    local: d.local,
    crews: (d.crews ?? []).map((c) => c.name),
    roles: d.roles,
    crew: d.crew,
    event: d.event,
    issuerName: d.issuerName,
    recipientName: d.recipientName,
    accessLevel: d.accessLevel,
    validThru: d.validThru,
    holographic: d.holographic,
  };
}

/**
 * Live canvas-backed card preview. Debounced so a fast typist doesn't kick off
 * a canvas + QR render on every keystroke.
 */
export function CardPreview({ d, className, zoomable = false }: { d: CardData; className?: string; zoomable?: boolean }) {
  const [src, setSrc] = useState<string | null>(null);
  const [zoom, setZoom] = useState(false);

  useEffect(() => {
    let cancelled = false;
    const handle = setTimeout(async () => {
      try {
        const url = await drawCardToCanvas(toCanvasData(d), d.side ?? 'front');
        if (!cancelled) setSrc(url);
      } catch {
        if (!cancelled) setSrc(null);
      }
    }, 180);
    return () => { cancelled = true; clearTimeout(handle); };
  }, [d]);

  return (
    <>
      <button
        type="button"
        onClick={zoomable && src ? () => setZoom(true) : undefined}
        className={cn(
          'group relative w-full max-w-[440px] overflow-hidden rounded-2xl',
          zoomable && src && 'cursor-zoom-in',
          className,
        )}
        style={{ aspectRatio: '856 / 540' }}
        aria-label={zoomable ? 'Zoom card' : undefined}
      >
        {src
          ? <img src={src} alt="Card preview" className="h-full w-full object-cover" style={{ display: 'block' }} />
          : <div className="h-full w-full animate-pulse rounded-2xl bg-white/5" />}
        {zoomable && src && (
          <span className="absolute bottom-2 right-2 rounded-full bg-black/60 p-1.5 text-white opacity-0 transition-opacity group-hover:opacity-100">
            <Maximize2 className="h-3.5 w-3.5" />
          </span>
        )}
      </button>

      {zoom && src && (
        <div
          className="fixed inset-0 z-50 flex items-center justify-center bg-black/90 p-4"
          onClick={() => setZoom(false)}
          role="dialog"
          aria-modal="true"
        >
          <img src={src} alt="Card" className="max-h-[92vh] w-auto max-w-[95vw] rounded-2xl shadow-2xl" />
        </div>
      )}
    </>
  );
}