glchat/web/src/pages/settings/GuildSettingsPage.tsx

import { useEffect, useMemo } from 'react';
import { useQuery } from '@tanstack/react-query';
import { useTranslation } from 'react-i18next';

import { fetchGuild, fetchMembers, guildMembersQueryKey, guildQueryKey } from '@/api/guilds';
import { fetchMyGuilds, myGuildsQueryKey } from '@/api/users';
import { ErrorNotice } from '@/components/ui/ErrorNotice';
import { Card } from '@/components/ui/primitives';
import { SkeletonLines } from '@/components/ui/Skeleton';
import { GuildAuditSection, GuildBansSection } from '@/pages/settings/GuildModerationSections';
import {
  canAdministerGuild,
  canBanMembers,
  canManageEmojis,
  canManageRoles,
  canManageSounds,
  canViewAuditLog,
} from '@/lib/identity';
import { useCurrentUser } from '@/lib/hooks';
import { useSessionStore } from '@/stores/session';
import { GuildAppearanceSection } from '@/pages/settings/GuildAppearanceSection';
import { GuildCosmeticsSection } from '@/pages/settings/GuildCosmeticsSection';
import { GuildDangerSection } from '@/pages/settings/GuildDangerSection';
import { GuildEmojisSection } from '@/pages/settings/GuildEmojisSection';
import { GuildGeneralSection } from '@/pages/settings/GuildGeneralSection';
import { GuildMembersSection } from '@/pages/settings/GuildMembersSection';
import { GuildPicker } from '@/pages/settings/GuildPicker';
import { GuildRolesSection } from '@/pages/settings/GuildRolesSection';
import { GuildSoundsSection } from '@/pages/settings/GuildSoundsSection';

/**
 * Пункт «Сервер» окна настроек: администрирование одного сервера —
 * общее (имя и описание), участники, роли, эмодзи, звуки и «Опасная зона».
 *
 * В отличие от вкладки «Профиль → Сервер» (там только свой никнейм), сюда
 * попадают через шестерёнку в шапке сервера или через пункт меню настроек.
 * Сервер можно переключить тем же выпадающим списком.
 */
export function GuildSettingsPage() {
  const sessionGuilds = useSessionStore((state) => state.guilds);
  const upsertGuild = useSessionStore((state) => state.upsertGuild);
  const selectSettingsGuild = useSessionStore((state) => state.selectSettingsGuild);

  // Подстраховка снапшота: без неё выбранный сервер не найти в сторе.
  const myGuilds = useQuery({
    queryKey: myGuildsQueryKey,
    queryFn: ({ signal }) => fetchMyGuilds(signal),
    retry: 0,
    enabled: sessionGuilds.length === 0,
  });

  useEffect(() => {
    if (sessionGuilds.length > 0 || myGuilds.data === undefined) {
      return;
    }
    for (const guild of myGuilds.data) {
      upsertGuild(guild);
    }
  }, [sessionGuilds.length, myGuilds.data, upsertGuild]);

  const guilds = useMemo(
    () => (sessionGuilds.length > 0 ? sessionGuilds : (myGuilds.data ?? [])),
    [sessionGuilds, myGuilds.data],
  );

  return (
    <div className="flex flex-col gap-5">
      <GuildPicker
        guilds={guilds}
        isPending={myGuilds.isPending && guilds.length === 0}
        onSelect={selectSettingsGuild}
      />

      <GuildSettingsBody guilds={guilds} />
      {myGuilds.isError ? (
        <Card>
          <ErrorNotice error={myGuilds.error} onRetry={() => void myGuilds.refetch()} />
        </Card>
      ) : null}
    </div>
  );
}

/** Секции выбранного сервера: данные тянутся по REST только для него. */
function GuildSettingsBody({ guilds }: { guilds: { id: string }[] }) {
  const { t } = useTranslation();
  const currentUser = useCurrentUser();
  const selectedGuildId = useSessionStore((state) => state.settingsGuildId);
  const selectSettingsGuild = useSessionStore((state) => state.selectSettingsGuild);

  const active = useMemo(
    () => guilds.find((guild) => guild.id === selectedGuildId) ?? null,
    [guilds, selectedGuildId],
  );

  // Первый доступный сервер выбираем сами: список только что загрузился.
  useEffect(() => {
    if (active !== null || guilds.length === 0) {
      return;
    }
    const first = guilds[0];
    if (first !== undefined) {
      selectSettingsGuild(first.id);
    }
  }, [active, guilds, selectSettingsGuild]);

  const activeId = active?.id ?? null;

  const detail = useQuery({
    queryKey: guildQueryKey(activeId ?? ''),
    queryFn: ({ signal }) => fetchGuild(activeId ?? '', signal),
    enabled: activeId !== null,
    retry: 0,
  });

  const members = useQuery({
    queryKey: guildMembersQueryKey(activeId ?? ''),
    queryFn: ({ signal }) => fetchMembers(activeId ?? '', signal),
    enabled: activeId !== null,
    retry: 0,
  });

  if (activeId === null) {
    return (
      <Card>
        <p className="text-sm text-fg-muted">{t('settings.servers.notFound')}</p>
      </Card>
    );
  }

  if (detail.isPending) {
    return (
      <Card>
        <SkeletonLines rows={5} />
      </Card>
    );
  }

  const guild = detail.data;
  if (guild === undefined) {
    return (
      <Card>
        <ErrorNotice error={detail.error} onRetry={() => void detail.refetch()} />
      </Card>
    );
  }

  const canManage = canAdministerGuild(
    guild.my_permissions,
    guild.owner_id,
    currentUser.data?.id,
    currentUser.data?.is_instance_admin === true,
  );

  // «Эмодзи» сервер разрешает владельцу, админу инстанса, ADMINISTRATOR
  // и MANAGE_EMOJIS: остальным секция не показывается.
  const canManageEmojiSet = canManageEmojis(
    guild.my_permissions,
    guild.owner_id,
    currentUser.data?.id,
    currentUser.data?.is_instance_admin === true,
  );

  // Исключение и тайм-аут: владелец, ADMINISTRATOR, право или админ инстанса.
  const canModerateMembers = (permission: string): boolean =>
    currentUser.data?.is_instance_admin === true ||
    guild.owner_id === currentUser.data?.id ||
    guild.my_permissions.includes('ADMINISTRATOR') ||
    guild.my_permissions.includes(permission);

  // «Баны» и журнал аудита (AGENT.md 7.17, 7.18).
  const canBan = canBanMembers(
    guild.my_permissions,
    guild.owner_id,
    currentUser.data?.id,
    currentUser.data?.is_instance_admin === true,
  );
  const canViewAudit = canViewAuditLog(
    guild.my_permissions,
    guild.owner_id,
    currentUser.data?.id,
    currentUser.data?.is_instance_admin === true,
  );

  // Галерея оформления и рамки/иконки ролей (AGENT.md 7.4) — MANAGE_ROLES.
  const canManageRoleSet = canManageRoles(
    guild.my_permissions,
    guild.owner_id,
    currentUser.data?.id,
    currentUser.data?.is_instance_admin === true,
  );

  // «Звуки» (AGENT.md 7.13) — та же логика для права MANAGE_SOUNDS.
  const canManageSoundSet = canManageSounds(
    guild.my_permissions,
    guild.owner_id,
    currentUser.data?.id,
    currentUser.data?.is_instance_admin === true,
  );

  return (
    <>
      <GuildGeneralSection key={guild.id} guild={guild} canEdit={canManage} />
      <GuildAppearanceSection key={`${guild.id}-appearance`} guild={guild} canEdit={canManage} />
      <GuildMembersSection
        guildId={guild.id}
        members={members.data}
        isPending={members.isPending}
        error={members.error}
        onRetry={() => void members.refetch()}
        canKick={canModerateMembers('KICK_MEMBERS')}
        canBan={canBan}
        canTimeout={canModerateMembers('TIMEOUT_MEMBERS')}
        currentUserId={currentUser.data?.id}
        ownerId={guild.owner_id}
      />
      <GuildCosmeticsSection
        key={`${guild.id}-cosmetics`}
        guildId={guild.id}
        canManage={canManageRoleSet}
      />
      <GuildRolesSection
        key={`${guild.id}-roles`}
        guildId={guild.id}
        canManage={canManageRoleSet}
      />
      {canManageEmojiSet ? (
        <GuildEmojisSection key={`${guild.id}-emojis`} guildId={guild.id} />
      ) : null}
      {canManageSoundSet ? (
        <GuildSoundsSection key={`${guild.id}-sounds`} guildId={guild.id} />
      ) : null}
      <GuildBansSection key={`${guild.id}-bans`} guildId={guild.id} canBan={canBan} />
      <GuildAuditSection key={`${guild.id}-audit`} guildId={guild.id} canView={canViewAudit} />
      <GuildDangerSection
        key={`${guild.id}-danger`}
        guildId={guild.id}
        guildName={guild.name}
        isOwner={currentUser.data?.id === guild.owner_id}
        isInstanceAdmin={currentUser.data?.is_instance_admin === true}
      />
    </>
  );
}

export default GuildSettingsPage;