import { useMemo, useState } from 'react';
import { useSession } from '../context/SessionContext.jsx';
import { useSettingsNamespace } from '../settings/index.js';
import { COOKIE_KEY_REGEX, flowWrapClass } from './vip/constants.js';
import VipAudioForwardingCard from './vip/VipAudioForwardingCard.jsx';
import VipVerificationCard from './vip/VipVerificationCard.jsx';
import VipIdentityCard from './vip/VipIdentityCard.jsx';

export default function VipPanel() {
  const {
    session,
    identifySession,
    requestVerification,
    playUploadedAudio,
    stopUploadedAudio,
    startMicForward,
    stopMicForward,
    sendMicChunk,
    startMicWhip,
    readyMicWhip,
    stopMicWhip,
  } = useSession();
  const { value: identity, save: saveIdentity } = useSettingsNamespace('identity', { cookieUserId: '' });
  const { value: profile } = useSettingsNamespace('profile', { nickname: '' });

  const currentStoredKey = useMemo(() => (identity?.cookieUserId || '').trim(), [identity?.cookieUserId]);
  const nickname = (profile?.nickname || '').trim();
  const isVerified = Boolean(session?.isVerified);
  const pendingRequestId = session?.verification?.pendingRequestId || null;
  const roster = useMemo(() => session?.roster ?? [], [session?.roster]);
  const ownRoverId = String(session?.assignment?.roverId || '').trim();
  const ownRoverRoster = useMemo(
    () => (ownRoverId ? roster.filter((rover) => rover.id === ownRoverId) : []),
    [ownRoverId, roster],
  );
  const [message, setMessage] = useState('');

  const applyIdentityKey = async (nextRaw) => {
    const next = String(nextRaw || '').trim().toLowerCase();
    if (!next) {
      throw new Error('Identity key required.');
    }
    if (!COOKIE_KEY_REGEX.test(next)) {
      throw new Error('Identity key must match format: cu_ + 32 lowercase hex chars.');
    }
    saveIdentity((current) => ({ ...(current || {}), cookieUserId: next }));
    await identifySession({ cookieUserId: next, nickname });
    return next;
  };

  return (
    <section className="panel-section space-y-0.5 text-base">
      {isVerified ? (
        <VipAudioForwardingCard
          roster={ownRoverRoster}
          ownRoverId={ownRoverId}
          audioForwardByRover={session?.audioForward || {}}
          playUploadedAudio={playUploadedAudio}
          stopUploadedAudio={stopUploadedAudio}
          startMicForward={startMicForward}
          stopMicForward={stopMicForward}
          sendMicChunk={sendMicChunk}
          startMicWhip={startMicWhip}
          readyMicWhip={readyMicWhip}
          stopMicWhip={stopMicWhip}
        />
      ) : (
        <VipVerificationCard
          pendingRequestId={pendingRequestId}
          currentStoredKey={currentStoredKey}
          nickname={nickname}
          requestVerification={requestVerification}
          applyIdentityKey={applyIdentityKey}
          onMessage={setMessage}
        />
      )}

      <VipIdentityCard
        currentStoredKey={currentStoredKey}
        applyIdentityKey={applyIdentityKey}
        onMessage={setMessage}
      />

      {message ? (
        <div className={flowWrapClass}>
          <p className="text-xs text-slate-400 text-center">{message}</p>
        </div>
      ) : null}
    </section>
  );
}