"use client";
import { useI18n } from "@/components/I18nProvider";
import Link from "next/link";
import { ArrowRight } from "lucide-react";
import { PixelTrophy, PlayerAvatar } from "./PixelArt";
import {
  type LeaderboardData,
  type LeaderboardEntry,
} from "@/shared/leaderboard";

export function LeaderboardEmpty({
  unavailable = false,
  search = false,
}: {
  unavailable?: boolean;
  search?: boolean;
}) {
  const { t } = useI18n();
  return (
    <div
      className="leaderboard-empty"
      role={unavailable ? "status" : undefined}
    >
      <PixelTrophy />
      <h2>
        {unavailable
          ? t("The scoreboard is taking a break.")
          : search
            ? t("No explorers found.")
            : t("The first place is still open.")}
      </h2>
      <p>
        {unavailable
          ? t("We couldn’t load the scores. Try again in a moment.")
          : search
            ? t("Try another player name or clear your search.")
            : t("Log in and finish five rounds to put your name on the board.")}
      </p>
      {!search && (
        <Link
          href={unavailable ? "/leaderboard" : "/servers"}
          className="button primary"
        >
          {unavailable ? t("Reload scores") : t("Play an expedition")}{" "}
          <ArrowRight size={16} />
        </Link>
      )}
    </div>
  );
}

export function LeaderboardTable({
  entries,
  compact = false,
  playerId,
}: {
  entries: LeaderboardEntry[];
  compact?: boolean;
  playerId?: string;
}) {
  const { t, formatNumber } = useI18n();
  return (
    <div className={`leaderboard-table-wrap${compact ? " compact" : ""}`}>
      <table className="leaderboard-table">
        <caption className="sr-only">
          {t(
            "Players ranked by best five-round score. Ties are broken by average score, then games played.",
          )}
        </caption>
        <thead>
          <tr>
            <th scope="col" className="rank-column">
              {t("Rank")}
            </th>
            <th scope="col">{t("Explorer")}</th>
            {!compact && (
              <th scope="col" className="games-column">
                {t("Games")}
              </th>
            )}
            {!compact && (
              <th scope="col" className="average-column">
                {t("Average")}
              </th>
            )}
            <th scope="col" className="score-column">
              {t("Best score")}
            </th>
          </tr>
        </thead>
        <tbody>
          {entries.map((entry) => (
            <tr
              key={entry.player_id}
              className={entry.player_id === playerId ? "your-row" : undefined}
            >
              <td className="rank-column">
                <span
                  className={`rank-number${entry.rank <= 3 ? ` place-${entry.rank}` : ""}`}
                >
                  {String(entry.rank).padStart(2, "0")}
                </span>
              </td>
              <th scope="row">
                <div className="leaderboard-player">
                  <PlayerAvatar id={entry.player_id} />
                  <span className="player-name">
                    {entry.display_name}
                    {entry.player_id === playerId && (
                      <span className="you-label">{t("You")}</span>
                    )}
                  </span>
                </div>
              </th>
              {!compact && (
                <td className="games-column">
                  {formatNumber(entry.games_played)}
                </td>
              )}
              {!compact && (
                <td className="average-column">
                  {formatNumber(entry.average_score)}
                </td>
              )}
              <td className="score-column">
                <strong>{formatNumber(entry.best_score)}</strong>
                <span className="score-unit"> {t("pts")}</span>
              </td>
            </tr>
          ))}
        </tbody>
      </table>
    </div>
  );
}

export function WinnersPodium({ leaders }: { leaders: LeaderboardEntry[] }) {
  const { t, formatNumber } = useI18n();
  return (
    <section className="winners-podium" aria-label={t("Top three explorers")}>
      {leaders.map((entry, index) => (
        <article
          className={`podium-place podium-${index + 1}`}
          key={entry.player_id}
        >
          <div className="podium-player">
            <span className="podium-label">
              {index === 0
                ? t("TOP EXPLORER")
                : t("Place {place}", {
                    place: String(index + 1).padStart(2, "0"),
                  })}
            </span>
            <PlayerAvatar id={entry.player_id} />
            <h2>{entry.display_name}</h2>
            <p>
              {formatNumber(entry.best_score)} <span>/ 25,000</span>
            </p>
          </div>
          <div className="podium-block" aria-hidden="true">
            <span>0{index + 1}</span>
            {index === 0 && <PixelTrophy />}
          </div>
        </article>
      ))}
    </section>
  );
}

export function LeaderboardPreview({ data }: { data: LeaderboardData | null }) {
  const { t, formatNumber } = useI18n();
  return (
    <section
      className="section home-leaderboard"
      aria-labelledby="home-leaderboard-heading"
    >
      <div className="leaderboard-preview-copy">
        <div className="leaderboard-kicker">
          <PixelTrophy />
          <span className="eyebrow">{t("THE EXPLORERS’ BOARD")}</span>
        </div>
        <h2 id="home-leaderboard-heading">
          {t("Good eye.")}
          <br /> <span>{t("Great guess.")}</span>
        </h2>
        <p>
          {t("Five rounds to find your way.")}
          <br /> {t("One score to make your mark.")}
        </p>
        <Link className="text-link" href="/leaderboard">
          {t("See the full leaderboard")} <ArrowRight size={16} />
        </Link>
      </div>
      <div className="leaderboard-preview-board">
        <div className="board-heading">
          <span>{t("Top explorers")}</span>
          <span>{t("All difficulties · All time")}</span>
        </div>
        {data?.entries.length ? (
          <LeaderboardTable entries={data.entries} compact />
        ) : (
          <LeaderboardEmpty unavailable={!data} />
        )}
        <div className="board-footnote">
          {t("Best expedition score ·")}{" "}
          {data
            ? t("Ranked explorers: {count}", {
                count: formatNumber(data.total_players),
              })
            : t("Scores temporarily unavailable")}
        </div>
      </div>
    </section>
  );
}