"use client";

import { useCallback, useEffect, useState } from "react";
import { api } from "@/lib/client-api";
import { useI18n } from "./I18nProvider";

type Community = {
  owner: boolean;
  moderator: boolean;
  slowSeconds: number;
  moderators: string[];
  tags: Record<string, string>;
  bans: { accountId?: string; id?: string; name: string }[];
};

export function TournamentModeration({
  id,
  players,
  ownerId,
  you,
  party = false,
  playing = false,
}: {
  id: string;
  players: { accountId: string; name: string }[];
  ownerId: string | null;
  you: string | null;
  party?: boolean;
  playing?: boolean;
}) {
  const { t } = useI18n();
  const [community, setCommunity] = useState<Community | null>(null);
  const [error, setError] = useState("");
  const [busy, setBusy] = useState(false);
  const [tags, setTags] = useState<Record<string, string>>({});
  const endpoint = `${party ? "rooms" : "tournaments"}/${id}/community`;
  const load = useCallback(async () => {
    try {
      setCommunity(await api<Community>(endpoint));
    } catch (failure) {
      setCommunity(null);
      setError((failure as Error).message);
    }
  }, [endpoint]);
  useEffect(() => {
    void load();
    const timer = window.setInterval(() => {
      if (!document.hidden) void load();
    }, 5000);
    return () => window.clearInterval(timer);
  }, [load]);
  async function act(action: string, fields: object = {}) {
    if (busy) return;
    setBusy(true);
    setError("");
    try {
      await api(endpoint, { action, ...fields });
      await load();
    } catch (failure) {
      setError((failure as Error).message);
    } finally {
      setBusy(false);
    }
  }
  if (!community) return null;
  if (!community.moderator) {
    const tagged = players.filter((player) => community.tags[player.accountId]);
    return tagged.length ? (
      <p className="muted">
        {tagged
          .map(
            (player) => `${player.name} · ${community.tags[player.accountId]}`,
          )
          .join("  |  ")}
      </p>
    ) : null;
  }
  const panel = (
    <section
      className="panel tournament-form community-moderation"
      aria-label={t(party ? "Party moderation" : "Tournament moderation")}
    >
      <h2>{t(party ? "Party moderation" : "Tournament moderation")}</h2>
      {error && (
        <p role="alert" className="error-message">
          {t(error)}
        </p>
      )}
      <form
        onSubmit={(event) => {
          event.preventDefault();
          const data = new FormData(event.currentTarget);
          void act("slow", { seconds: Number(data.get("seconds")) });
        }}
      >
        <label>
          {t("Chat slow mode (seconds)")}
          <input
            key={community.slowSeconds}
            name="seconds"
            type="number"
            min="0"
            max="300"
            defaultValue={community.slowSeconds}
            required
          />
        </label>
        <button className="button" disabled={busy}>
          {t("Save slow mode")}
        </button>
      </form>
      <ul className="multiplayer-roster">
        {players
          .filter(
            (player) =>
              player.accountId !== ownerId &&
              player.accountId !== you &&
              (community.owner ||
                !community.moderators.includes(player.accountId)),
          )
          .map((player) => (
            <li key={player.accountId}>
              <span>
                {player.name}
                {community.moderators.includes(player.accountId) &&
                  ` · ${t("Moderator")}`}
                {community.tags[player.accountId] &&
                  ` · ${community.tags[player.accountId]}`}
              </span>
              <div className="inline-actions">
                {community.owner && (
                  <button
                    className="button"
                    disabled={busy}
                    onClick={() =>
                      void act(
                        community.moderators.includes(player.accountId)
                          ? "unadmin"
                          : "admin",
                        {
                          [party ? "playerId" : "accountId"]: player.accountId,
                        },
                      )
                    }
                  >
                    {t(
                      community.moderators.includes(player.accountId)
                        ? "Remove moderator"
                        : "Make moderator",
                    )}
                  </button>
                )}
                <button
                  className="button"
                  disabled={busy}
                  onClick={() =>
                    void act("kick", {
                      [party ? "playerId" : "accountId"]: player.accountId,
                    })
                  }
                >
                  {t("Kick")}
                </button>
                <button
                  className="button danger"
                  disabled={busy}
                  onClick={() => {
                    if (window.confirm(t("Ban this player?")))
                      void act("ban", {
                        [party ? "playerId" : "accountId"]: player.accountId,
                      });
                  }}
                >
                  {t("Ban")}
                </button>
                <form
                  onSubmit={(event) => {
                    event.preventDefault();
                    void act("tag", {
                      [party ? "playerId" : "accountId"]: player.accountId,
                      tag:
                        tags[player.accountId] ??
                        community.tags[player.accountId] ??
                        "",
                    });
                  }}
                >
                  <label>
                    <span className="sr-only">{t("Player tag")}</span>
                    <input
                      maxLength={32}
                      value={
                        tags[player.accountId] ??
                        community.tags[player.accountId] ??
                        ""
                      }
                      onChange={(event) =>
                        setTags({
                          ...tags,
                          [player.accountId]: event.target.value,
                        })
                      }
                      placeholder={t("Player tag")}
                    />
                  </label>
                  <button className="button" disabled={busy}>
                    {t("Save tag")}
                  </button>
                </form>
              </div>
            </li>
          ))}
      </ul>
      {community.bans.length > 0 && (
        <>
          <h3>{t("Banned players")}</h3>
          <ul>
            {community.bans.map((player) => (
              <li key={player.id ?? player.accountId}>
                {player.name}{" "}
                <button
                  className="button"
                  disabled={busy}
                  onClick={() =>
                    void act(
                      "unban",
                      party
                        ? { banId: player.id }
                        : { accountId: player.accountId },
                    )
                  }
                >
                  {t("Unban")}
                </button>
              </li>
            ))}
          </ul>
        </>
      )}
    </section>
  );
  if (!playing) return panel;
  return (
    <details className="community-moderation-floating">
      <summary className="button">{t("Party moderation")}</summary>
      {panel}
    </details>
  );
}