import { ProLayout } from '@ant-design/pro-components';
import { Button, Dropdown, Select, Skeleton, message } from 'antd';
import type { MenuProps } from 'antd';
import {
  Bot,
  ChevronDown,
  ClipboardList,
  Gift,
  LayoutDashboard,
  LogOut,
  MessageSquareMore,
  Settings,
  Star,
  Users,
} from 'lucide-react';
import { Outlet, history, useLocation } from '@umijs/max';
import { useEffect, useState } from 'react';

import {
  apiRequest,
  getSelectedBotId,
  jsonOptions,
  setCsrfToken,
  setSelectedBotId,
} from '@/services/api';
import type { AdminUser, BotProfile } from '@/types';

const menuItems = [
  { path: '/dashboard', name: '概览', icon: <LayoutDashboard size={18} /> },
  { path: '/chats', name: '群组管理', icon: <Users size={18} /> },
  { path: '/giveaways', name: '抽奖管理', icon: <Gift size={18} /> },
  { path: '/points', name: '积分管理', icon: <Star size={18} /> },
  { path: '/audit', name: '操作日志', icon: <ClipboardList size={18} /> },
  { path: '/settings', name: '系统设置', icon: <Settings size={18} /> },
];

export default function AdminLayout() {
  const location = useLocation();
  const [user, setUser] = useState<AdminUser | null>(null);
  const [bots, setBots] = useState<BotProfile[]>([]);
  const [selectedBot, setSelectedBot] = useState(getSelectedBotId());

  useEffect(() => {
    apiRequest<AdminUser>('/auth/me')
      .then((current) => {
        setCsrfToken(current.csrf_token);
        if (current.must_change_password) {
          history.replace('/change-password');
          return;
        }
        setUser(current);
      })
      .catch((error) => message.error(error.message));
  }, []);

  useEffect(() => {
    const loadBots = () => {
      apiRequest<{ items: BotProfile[] }>('/bots')
        .then(({ items }) => {
          setBots(items);
          const current = getSelectedBotId();
          if (current && items.some((item) => item.bot_id === current)) {
            setSelectedBot(current);
            return;
          }
          const first = items.find((item) => item.enabled) || items[0];
          const next = first?.bot_id || '';
          setSelectedBot(next);
          setSelectedBotId(next);
        })
        .catch(() => setBots([]));
    };
    loadBots();
    window.addEventListener('bot-profiles-changed', loadBots);
    return () => window.removeEventListener('bot-profiles-changed', loadBots);
  }, []);

  const accountMenu: MenuProps['items'] = [
    {
      key: 'settings',
      icon: <Settings size={16} />,
      label: '账号设置',
      onClick: () => history.push('/settings'),
    },
    {
      key: 'logout',
      danger: true,
      icon: <LogOut size={16} />,
      label: '退出登录',
      onClick: async () => {
        await apiRequest('/auth/logout', jsonOptions('POST'));
        sessionStorage.removeItem('admin_csrf');
        history.replace('/login');
      },
    },
  ];

  if (!user) {
    return <Skeleton active style={{ padding: 24 }} />;
  }

  return (
    <ProLayout
      title="Telegram 群管"
      logo={<Bot size={24} color="#fff" aria-hidden="true" />}
      location={{ pathname: location.pathname }}
      menu={{ request: async () => menuItems }}
      layout="mix"
      fixedHeader
      fixSiderbar
      siderWidth={224}
      breakpoint="lg"
      token={{
        header: { colorBgHeader: '#ffffff', colorTextMenu: '#17212b' },
        sider: { colorMenuBackground: '#17212b' },
        pageContainer: { paddingInlinePageContainerContent: 20 },
      }}
      menuItemRender={(item, dom) => (
        <button
          type="button"
          onClick={() => item.path && history.push(item.path)}
          style={{
            width: '100%',
            padding: 0,
            color: 'inherit',
            textAlign: 'left',
            background: 'transparent',
            border: 0,
            cursor: 'pointer',
          }}
        >
          {dom}
        </button>
      )}
      avatarProps={{
        src: undefined,
        icon: <MessageSquareMore size={18} />,
        title: (
          <Dropdown menu={{ items: accountMenu }} trigger={['click']}>
            <Button type="text" icon={<ChevronDown size={15} />} iconPosition="end">
              {user.username}
            </Button>
          </Dropdown>
        ),
        render: (_, dom) => dom,
      }}
      actionsRender={() => [
        <Select
          key="bot-selector"
          aria-label="当前机器人"
          value={selectedBot || undefined}
          placeholder="选择机器人"
          style={{ width: 200, maxWidth: '34vw' }}
          options={bots.map((item) => ({
            value: item.bot_id,
            label: item.identity?.username ? `@${item.identity.username}` : item.label,
          }))}
          onChange={(value) => {
            setSelectedBot(value);
            setSelectedBotId(value);
          }}
        />,
      ]}
    >
      <main className="page-content" id="main-content">
        <Outlet />
      </main>
    </ProLayout>
  );
}