'use client';

import useSWRSubscription, { type SWRSubscription } from 'swr/subscription';

import { type ScoreEvent } from '@/lib/leaderboard';
import { cn } from '@/lib/utils';
import Podium from '@/ui/events/podium/Podium';

const SCORE_COLORS = ['text-yellow-400', 'text-gray-400', 'text-orange-400'];

export default function Leaderboard() {
  // TODO CHANGER CECI
  const CHAPITRE_EVENT = 1;

  const subscription: SWRSubscription<string, ScoreEvent, Error> = (key, { next }) => {
    const socket = new WebSocket(key);

    socket.addEventListener('message', (event) => {
      next(null, JSON.parse(event.data));
    });

    socket.addEventListener('error', (event) => {
      console.error(event);
    });

    return () => socket.close();
  };

  const { data } = useSWRSubscription(
    `wss://${process.env.NEXT_PUBLIC_API_URL?.split('//')[1]}/rleaderboard/${CHAPITRE_EVENT}`,
    subscription
  );

  const scores = [data?.groups]
    .flat()
    .sort((a, b) => a!.rank - b!.rank)
    .map((group, place) => ({
      ...group,
      place
    }));

  return (
    <section className="flex h-full w-full flex-col space-y-4">
      <header className="sticky flex items-center justify-between">
        <div className="flex flex-col">
          <h1 className="text-xl font-semibold">Tableau des scores</h1>
          <p className="text-muted">Suivez la progression des élèves en direct</p>
        </div>
      </header>
      <main className="flex flex-col justify-between space-x-0 space-y-4 pb-4">
        {data && <Podium score={scores} />}
        <ul className="flex flex-col space-y-2">
          {data?.groups.map((group, key) => {
            const tries = group.players.reduce((a, b) => a + b.tries, 0);
            return (
            <li key={key} className="flex justify-between space-x-2">
              <div className="flex items-center space-x-4">
                <span className={cn('font-semibold', SCORE_COLORS[group.rank - 1])}>
                  {group.rank}
                </span>
                <div className="flex items-center space-x-2">
                  <div className="flex flex-col gap-x-2 sm:flex-row sm:items-center">
                    <span className="text-lg">{group.name}</span>
                    <span className="text-sm text-muted">
                      {group.players && group.players.length > 1
                        ? group.players
                            .map((player) => player.pseudo || 'Anonyme')
                            .sort((a, b) => a.localeCompare(b))
                            .join(', ')
                        : group.players[0].pseudo}
                    </span>
                  </div>
                </div>
              </div>
              <div className="flex items-center space-x-4">
                <div className="flex flex-col">
                  <span className="text-sm font-semibold">Essai{tries > 1 ? "s":""}</span>
                  <span className="text-lg text-muted">
                    {tries}
                  </span>
                </div>
                {/* <div className="flex flex-col">
                  <span className="text-sm font-semibold">Puzzles</span>
                  <span className="text-lg text-muted">
                    {group.players.reduce((a, b) => a + b.completion, 0)}
                  </span>
                </div> */}
                <div className="flex flex-col">
                  <span className="text-sm font-semibold">Score</span>
                  <span className="text-lg text-muted">
                    {group.players.reduce((a, b) => a + b.score, 0)}
                  </span>
                </div>
              </div>
            </li>
          )}) ||
            [...Array(20).keys()].map((i) => (
              <span
                key={i}
                className="inline-block h-12 animate-pulse rounded-lg bg-primary-600"
                style={{
                  animationDelay: `${i * 0.05}s`,
                  animationDuration: '1s'
                }}
              />
            ))}
        </ul>
      </main>
    </section>
  );
}
