/**
 * RiderCard — the visual card used by both the `/card` editor and the public
 * `/card/:npub` view. Extracted so there is ONE React rendering of the card
 * (the canvas export in `RiderCardPage` remains the print renderer).
 */
import { useEffect, useState } from 'react';
import { SKILL_OPTIONS, shortNpub, roleMeta, type ThemeId } from '@/lib/riderCard';
import { useTranslation } from '@/contexts/language';
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';
  theme: ThemeId;
  holographic: boolean;
  // Rider
  name: string;
  nip05?: string;
  avatar?: string;
  pubkey: string;
  npub: string;
  style: string;
  skills: string[];
  sponsors: string;
  ridesFor: string;
  showSpots: boolean;
  showZaps: boolean;
  showEvents: boolean;
  spotsAdded: number;
  zapsReceived: number;
  eventsCreated: number;
  memberYear: string;
  receivedBadges: BadgeAward[];
  /** When set, the printed QR opens the verify page for this card. */
  verifyUrl?: string;
  // Identity facets (derived live, toggled on the card)
  crews?: { name: string; image?: string }[];
  local?: string;
  roles?: string[];
  showCrews?: boolean;
  showLocal?: boolean;
  showRoles?: boolean;
  // Crew card (derived from the crew's own signed kind 35006 event)
  crew?: {
    name: string;
    image?: string;
    pubkey: string;
    identifier: string;
    location?: string;
    founded?: string;
    members: number;
    focus?: string;
    vibes: string[];
    lookingFor: string[];
    spots: number;
  };
  // Park
  issuerName: string;
  recipientName: string;
  accessLevel: string;
  validThru: string;
}

/** Real QR (lazy-imported so canvas API access stays out of module load). */
function CardQr({ url }: { url?: string }) {
  const [src, setSrc] = useState<string | null>(null);

  useEffect(() => {
    let cancelled = false;
    if (!url) { setSrc(null); return; }
    (async () => {
      try {
        const QRCode = (await import('qrcode')).default;
        const dataUrl = await QRCode.toDataURL(url, {
          width: 88,
          margin: 0,
          errorCorrectionLevel: 'M',
          color: { dark: '#000000', light: '#ffffff' },
        });
        if (!cancelled) setSrc(dataUrl);
      } catch {
        if (!cancelled) setSrc(null);
      }
    })();
    return () => { cancelled = true; };
  }, [url]);

  return (
    <div className="rounded-[3px] flex-shrink-0" style={{ background: '#fff', padding: '3px', width: '44px', height: '44px' }}>
      {src
        ? <img src={src} alt="QR" width={38} height={38} style={{ display: 'block', width: '38px', height: '38px' }} />
        : <div style={{ width: '38px', height: '38px' }} />}
    </div>
  );
}

// ─── Card visual: Rider front ─────────────────────────────────────────────────
// Layout is STRICTLY pixel-fixed to match the 340×214px card container.
function RiderFront({ d }: { d: CardData }) {
  const { t } = useTranslation();
  const witnessedBadges = d.receivedBadges.slice(0, 2);

  return (
    <div className="absolute inset-0" style={{ padding: '10px 10px 20px 10px' }}>

      {/* Row 1: header */}
      <div className="flex items-start justify-between" style={{ height: '26px' }}>
        <div>
          <div className="text-[8px] font-black uppercase tracking-[0.18em] card-accent leading-none">
            🛹 SkateSpots
          </div>
          <div className="text-[6px] card-muted uppercase tracking-widest mt-[2px]">{t('labUi.rider.previewLicense')}</div>
        </div>
        <div className="text-right">
          <div className="text-[5px] card-muted uppercase tracking-wide leading-none">npub</div>
          <div className="text-[6px] font-bold card-accent font-mono tracking-tight leading-none mt-[1px]">
            {shortNpub(d.pubkey)}
          </div>
          <div className="text-[5px] card-muted mt-[1px]">{t('labUi.rider.previewSince', { year: d.memberYear })}</div>
        </div>
      </div>

      {/* Identity facets: local + crew crests */}
      {((d.showLocal !== false && d.local) || (d.showCrews !== false && (d.crews?.length ?? 0) > 0)) && (
        <div className="flex items-center gap-[6px] mt-[2px] overflow-hidden" style={{ height: '13px' }}>
          {d.showLocal !== false && d.local && (
            <span className="text-[6px] font-bold card-accent truncate flex-shrink-0" style={{ maxWidth: '150px' }}>📍 {d.local}</span>
          )}
          {d.showCrews !== false && (d.crews ?? []).slice(0, 3).map((c, i) => (
            <span key={i} className="flex items-center gap-[2px] min-w-0 flex-shrink-0">
              {c.image
                ? <img src={c.image} alt="" crossOrigin="anonymous" className="w-[11px] h-[11px] rounded-full object-cover border border-white/25" />
                : <span className="w-[11px] h-[11px] rounded-full bg-white/15" />}
              <span className="text-[5.5px] card-muted truncate" style={{ maxWidth: '66px' }}>{c.name}</span>
            </span>
          ))}
        </div>
      )}

      {/* Row 2: main body */}
      <div className="flex items-stretch gap-[8px]" style={{ height: '118px', marginTop: '6px' }}>

        {/* Avatar */}
        <div className="flex-shrink-0 flex flex-col gap-[4px]">
          <div className="w-[52px] h-[52px] rounded-[6px] overflow-hidden border-[1.5px] border-white/20">
            {d.avatar ? (
              <img src={d.avatar} alt={d.name} className="w-full h-full object-cover" crossOrigin="anonymous" />
            ) : (
              <div className="w-full h-full flex items-center justify-center card-bg-chip text-[18px]">🛹</div>
            )}
          </div>
          <div className="space-y-[2px]">
            {d.showSpots && (
              <div className="flex items-center justify-between gap-1">
                <span className="text-[5px] card-muted">{t('labUi.pyramid.spots')}</span>
                <span className="text-[7px] font-black card-accent leading-none">{d.spotsAdded}</span>
              </div>
            )}
            {d.showZaps && (
              <div className="flex items-center justify-between gap-1">
                <span className="text-[5px] card-muted">⚡</span>
                <span className="text-[7px] font-black card-accent2 leading-none">{d.zapsReceived}</span>
              </div>
            )}
            {d.showEvents && (
              <div className="flex items-center justify-between gap-1">
                <span className="text-[5px] card-muted">{t('labUi.rider.previewEvts')}</span>
                <span className="text-[7px] font-black leading-none" style={{ color: '#ff6600' }}>{d.eventsCreated}</span>
              </div>
            )}
          </div>
        </div>

        {/* Identity block */}
        <div className="flex-1 min-w-0 flex flex-col justify-start gap-[3px]">
          <div className="text-[14px] font-black uppercase truncate leading-tight">{d.name}</div>
          {d.nip05 && (
            <div className="text-[6.5px] card-accent truncate leading-none">@{d.nip05.split('@')[0]}</div>
          )}
          {d.style && (
            <span className="card-bg-chip text-[5.5px] font-bold uppercase px-[4px] py-[1px] rounded-[3px] card-accent w-fit">
              {d.style}
            </span>
          )}
          {d.ridesFor && (
            <div className="text-[5.5px] card-muted truncate leading-none">🏪 {d.ridesFor}</div>
          )}
          {d.sponsors && (
            <div className="text-[5.5px] card-muted truncate leading-none">🤝 {d.sponsors}</div>
          )}
          {/* Skills — roles, self-claimed, then witnessed (gold) */}
          <div className="flex flex-wrap gap-[2px] mt-[2px]">
            {d.showRoles !== false && (d.roles ?? []).slice(0, 2).map(r => {
              const m = roleMeta(r);
              return m ? (
                <span key={r} className="text-[5px] font-bold px-[3px] py-[1px] rounded-[2px] leading-none" style={{ background: 'rgba(100,160,255,0.18)', border: '1px solid rgba(100,160,255,0.45)', color: '#9cc4ff' }}>
                  {m.emoji} {t(`cardUi.roles.${m.role}`)}
                </span>
              ) : null;
            })}
            {d.skills.slice(0, 3).map(sk => {
              const s = SKILL_OPTIONS.find(o => o.id === sk);
              return s ? (
                <span key={sk} className="card-bg-chip text-[5px] font-bold px-[3px] py-[1px] rounded-[2px] leading-none">
                  {s.icon} {s.label}
                </span>
              ) : null;
            })}
            {witnessedBadges.map((b, i) => {
              const s = SKILL_OPTIONS.find(o => o.id === b.skill);
              return s ? (
                <span
                  key={`w${i}`}
                  className="text-[5px] font-bold px-[3px] py-[1px] rounded-[2px] leading-none"
                  style={{ background: 'rgba(255,215,0,0.2)', border: '1px solid rgba(255,215,0,0.5)', color: '#ffd700' }}
                >
                  ⭐ {s.label}
                </span>
              ) : null;
            })}
          </div>
        </div>

        {/* QR */}
        <div className="flex-shrink-0 flex flex-col items-end justify-end">
          <CardQr url={d.verifyUrl} />
          <div className="text-[4.5px] card-muted uppercase tracking-wide mt-[2px] text-right">
            {d.verifyUrl ? t('labUi.rider.previewScan') : t('cardUi.notPublished')}
          </div>
        </div>
      </div>

      {/* Bottom bar */}
      <div
        className="absolute left-0 right-0 flex items-center justify-between px-[10px]"
        style={{ bottom: '6px' }}
      >
        <span className="card-muted text-[5px] uppercase tracking-widest">
          skate-spots.org · Powered by Nostr
        </span>
        <span className="card-muted text-[5px] font-mono" style={{ maxWidth: '120px', overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>
          {shortNpub(d.pubkey)}
        </span>
      </div>
    </div>
  );
}

// ─── Card visual: Park Access front ──────────────────────────────────────────
function ParkFront({ d }: { d: CardData }) {
  const { t } = useTranslation();

  return (
    <div className="absolute inset-0" style={{ padding: '10px 10px 20px 10px' }}>

      <div className="flex items-center justify-between" style={{ height: '26px' }}>
        <div>
          <div className="text-[8px] font-black uppercase tracking-[0.15em] card-accent leading-none">
            🏟️ {d.issuerName || t('labUi.rider.previewSkatepark')}
          </div>
          <div className="text-[6px] card-muted uppercase tracking-widest mt-[2px]">{t('labUi.rider.previewAccessPass')}</div>
        </div>
        <div className="card-bg-chip px-[6px] py-[2px] rounded-[4px]">
          <span className="text-[7px] font-black uppercase card-accent">{d.accessLevel || 'Full Access'}</span>
        </div>
      </div>

      <div className="flex items-stretch gap-[8px]" style={{ height: '118px', marginTop: '6px' }}>

        <div className="flex-shrink-0">
          <div className="w-[52px] h-[52px] rounded-[6px] overflow-hidden border-[1.5px] border-white/20">
            {d.avatar ? (
              <img src={d.avatar} alt={d.recipientName} className="w-full h-full object-cover" crossOrigin="anonymous" />
            ) : (
              <div className="w-full h-full flex items-center justify-center card-bg-chip text-[18px]">🛹</div>
            )}
          </div>
        </div>

        <div className="flex-1 min-w-0 flex flex-col justify-start gap-[3px]">
          <div className="text-[13px] font-black uppercase truncate leading-tight">{d.recipientName || t('labUi.rider.previewMemberName')}</div>
          <div className="text-[5.5px] card-muted font-mono leading-none truncate">{shortNpub(d.pubkey)}</div>
          <div className="text-[5.5px] card-muted leading-none">{t('labUi.rider.previewIssuedBy')}</div>
          {d.validThru && (
            <div className="flex items-center gap-1 mt-[3px]">
              <span className="text-[5.5px] card-muted uppercase">{t('labUi.rider.previewValidThru')}</span>
              <span className="text-[8px] font-black card-accent leading-none">{d.validThru}</span>
            </div>
          )}
        </div>

        <div className="flex-shrink-0 flex flex-col items-end justify-end">
          <CardQr url={d.verifyUrl} />
          <div className="text-[4.5px] card-muted uppercase tracking-wide mt-[2px] text-right">
            {d.verifyUrl ? t('labUi.rider.previewScan') : t('cardUi.notPublished')}
          </div>
        </div>
      </div>

      <div
        className="absolute left-0 right-0 flex items-center justify-between px-[10px]"
        style={{ bottom: '6px' }}
      >
        <span className="card-muted text-[5px] uppercase tracking-widest">
          skate-spots.org · Powered by Nostr
        </span>
        <div className="flex items-center gap-1">
          <span className="card-muted text-[5px] uppercase tracking-widest">{t('labUi.rider.previewNostrVerified')}</span>
        </div>
      </div>
    </div>
  );
}

// ─── Card visual: Crew front ─────────────────────────────────────────────────
function CrewFront({ d }: { d: CardData }) {
  const { t } = useTranslation();
  const c = d.crew;
  if (!c) return null;

  return (
    <div className="absolute inset-0" style={{ padding: '10px 10px 20px 10px' }}>

      {/* Row 1: header */}
      <div className="flex items-start justify-between" style={{ height: '26px' }}>
        <div>
          <div className="text-[8px] font-black uppercase tracking-[0.18em] card-accent leading-none">
            🛹 SkateSpots
          </div>
          <div className="text-[6px] card-muted uppercase tracking-widest mt-[2px]">{t('cardUi.crew.crewCard')}</div>
        </div>
        <div className="text-right">
          <div className="text-[5px] card-muted uppercase tracking-wide leading-none">npub</div>
          <div className="text-[6px] font-bold card-accent font-mono tracking-tight leading-none mt-[1px]">
            {shortNpub(c.pubkey)}
          </div>
          {c.founded && <div className="text-[5px] card-muted mt-[1px]">{t('cardUi.crew.est', { year: c.founded })}</div>}
        </div>
      </div>

      {/* Row 2: main body */}
      <div className="flex items-stretch gap-[8px]" style={{ height: '118px', marginTop: '6px' }}>

        {/* Logo + stats */}
        <div className="flex-shrink-0 flex flex-col gap-[4px]">
          <div className="w-[52px] h-[52px] rounded-[6px] overflow-hidden border-[1.5px] border-white/20">
            {c.image ? (
              <img src={c.image} alt={c.name} className="w-full h-full object-cover" crossOrigin="anonymous" />
            ) : (
              <div className="w-full h-full flex items-center justify-center card-bg-chip text-[18px]">🏕️</div>
            )}
          </div>
          <div className="space-y-[2px]">
            <div className="flex items-center justify-between gap-1">
              <span className="text-[5px] card-muted">{t('cardUi.crew.members')}</span>
              <span className="text-[7px] font-black card-accent leading-none">{c.members}</span>
            </div>
            <div className="flex items-center justify-between gap-1">
              <span className="text-[5px] card-muted">{t('cardUi.crew.spots')}</span>
              <span className="text-[7px] font-black card-accent2 leading-none">{c.spots}</span>
            </div>
          </div>
        </div>

        {/* Identity block */}
        <div className="flex-1 min-w-0 flex flex-col justify-start gap-[3px]">
          <div className="text-[14px] font-black uppercase truncate leading-tight">{c.name}</div>
          {c.location && (
            <div className="text-[6.5px] card-accent truncate leading-none">📍 {c.location}</div>
          )}
          {c.lookingFor.length > 0 && (
            <span
              className="text-[5px] font-black uppercase px-[4px] py-[1px] rounded-[3px] w-fit leading-none"
              style={{ background: 'rgba(204,255,0,0.2)', border: '1px solid rgba(204,255,0,0.5)', color: '#ccff00' }}
            >
              {t('cardUi.crew.openCall')}
            </span>
          )}
          <div className="flex flex-wrap gap-[2px] mt-[2px]">
            {c.vibes.slice(0, 5).map(v => (
              <span key={v} className="card-bg-chip text-[5px] font-bold px-[3px] py-[1px] rounded-[2px] leading-none">
                {v}
              </span>
            ))}
          </div>
        </div>

        {/* QR */}
        <div className="flex-shrink-0 flex flex-col items-end justify-end">
          <CardQr url={d.verifyUrl} />
          <div className="text-[4.5px] card-muted uppercase tracking-wide mt-[2px] text-right">
            {d.verifyUrl ? t('labUi.rider.previewScan') : t('cardUi.notPublished')}
          </div>
        </div>
      </div>

      {/* Bottom bar */}
      <div
        className="absolute left-0 right-0 flex items-center justify-between px-[10px]"
        style={{ bottom: '6px' }}
      >
        <span className="card-muted text-[5px] uppercase tracking-widest">
          skate-spots.org · Powered by Nostr
        </span>
        <span className="card-muted text-[5px] uppercase tracking-widest">{t('cardUi.crew.verifiedCrew')}</span>
      </div>
    </div>
  );
}

export function RiderCardFront({ d, printRef }: { d: CardData; printRef?: React.RefObject<HTMLDivElement> }) {
  const themeClass = `card-theme-${d.theme}`;
  const holoClass = d.holographic ? 'rider-card-holo' : '';

  return (
    <div
      ref={printRef}
      className={cn('rider-card', themeClass, holoClass, 'select-none')}
      style={{ fontFamily: "'Inter Variable', 'Inter', system-ui, sans-serif" }}
    >
      <div className="card-stripe absolute top-0 left-0 right-0 h-[4px]" />
      {d.type === 'rider' && <RiderFront d={d} />}
      {d.type === 'park'  && <ParkFront d={d} />}
      {d.type === 'crew'  && <CrewFront d={d} />}
    </div>
  );
}