import React, { useState, useEffect } from 'react';
import { Outlet, useNavigate, useLocation } from 'react-router-dom';
import {
	Layout, Menu, Button, Space, Select, Avatar, Card, Tag
} from 'antd';
import {
	DashboardOutlined, ExperimentOutlined, VideoCameraOutlined,
	BellOutlined, UserOutlined, LogoutOutlined,
	AppstoreOutlined, SettingOutlined, MenuUnfoldOutlined, MenuFoldOutlined,
	CompressOutlined,
	ExpandOutlined
} from '@ant-design/icons';
import { useTranslation } from 'react-i18next';
import logo from '../assets/logo.png';
import { useSelector } from 'react-redux';
import { RootState, useAppDispatch } from '../store';
import { logout } from '../store/userSlice';
import { setCurrentStation, clearStation } from '../store/stationSlice';
import { getMenuList } from '../api/mune';
import { getStationByUserId } from '../api/stationManage';
import LanguageSwitcher from './LanguageSwitcher';
import envConfig from '../../env';

const { Header, Sider, Content } = Layout;

export default function AppLayout() {
	const { t } = useTranslation();
	const [collapsed, setCollapsed] = useState(false);
	const [time, setTime] = useState(new Date().toLocaleString());
	const [menuList, setMenuList] = useState([]);
	const [stationList, setStationList] = useState([]);
	const [isFullScreen, setIsFullScreen] = useState(false);

	const navigate = useNavigate();
	const location = useLocation();
	const dispatch = useAppDispatch();

	const { userInfo } = useSelector((state: RootState) => state.user);
	const { currentStation, stationId } = useSelector((state: RootState) => state.station);

	const getStationData = () => {
		getStationByUserId().then(res => {
			if (res.code === 200) {
				const list = res.data || [];
				setStationList(list);
				if (!currentStation && list.length > 0) {
					dispatch(setCurrentStation(list[0]));
				}
			}
		});
	};

	const toggleFullScreen = () => {
		if (!document.fullscreenElement) {
			document.documentElement.requestFullscreen();
			setIsFullScreen(true);
		} else {
			if (document.exitFullscreen) {
				document.exitFullscreen();
				setIsFullScreen(false);
			}
		}
	};

	const handleStationChange = (id: number) => {
		const station = stationList.find(s => s.id === id);
		if (station) {
			dispatch(setCurrentStation(station));
		}
	};

	const getIcon = (path) => {
		if (path.includes('overview')) return <DashboardOutlined />;
		if (path.includes('device')) return <ExperimentOutlined />;
		if (path.includes('monitor')) return <VideoCameraOutlined />;
		if (path.includes('alert')) return <BellOutlined />;
		if (path.includes('user')) return <UserOutlined />;
		if (path.includes('system')) return <SettingOutlined />;
		if (path.includes('menu')) return <AppstoreOutlined />;
		return <AppstoreOutlined />;
	};

	const buildMenuTree = (list: any[]) => {
		const map = new Map();
		const tree: any[] = [];

		list.forEach(item => {
			map.set(item.menuId, {
				key: item.path,
				label: item.menuName,
				icon: getIcon(item.path),
				children: [],
			});
		});

		list.forEach(item => {
			const node = map.get(item.menuId);
			if (item.parentId === 0) {
				tree.push(node);
			} else {
				const parent = map.get(item.parentId);
				if (parent) {
					parent.children.push(node);
				}
			}
		});

		const sortMenu = (menus: any[]) => {
			menus.sort((a, b) => a.orderNum - b.orderNum);
			menus.forEach(menu => {
				if (menu.children.length) {
					sortMenu(menu.children);
				} else {
					delete menu.children;
				}
			});
		};

		sortMenu(tree);
		return tree;
	};

	const renderMenuItems = (treeList, isChild = false) => {
		return treeList.map(item => {
			const hasChild = item.children && item.children.length > 0;
			const key = item.path || `/menu/${item.menuId}`;
			return {
				key,
				icon: isChild ? null : getIcon(item.path),
				label: item.menuName,
				...(hasChild && {
					children: renderMenuItems(item.children, true),
				}),
			};
		});
	};

	const handleLogout = async () => {
		await dispatch(logout());
		dispatch(clearStation());
		navigate('/login', { replace: true });
	};

	const getMenu = () => {
		getMenuList({
			pageNum: 1,
			pageSize: 10000,
		}).then(res => {
			if (res.code === 200) {
				const menus = buildMenuTree(res.rows || []);
				setMenuList(menus);
			}
		});
	};

	useEffect(() => {
		const timer = setInterval(() => setTime(new Date().toLocaleString()), 1000);
		getMenu();
		getStationData();
		return () => clearInterval(timer);
	}, [userInfo]);

	useEffect(() => {
		const fullscreenChange = () => {
			setIsFullScreen(!!document.fullscreenElement);
		};
		document.addEventListener('fullscreenchange', fullscreenChange);
		return () => document.removeEventListener('fullscreenchange', fullscreenChange);
	}, []);

	return (
		<Layout style={{ height: '100vh', display: 'flex', flexDirection: 'column' }}>
			<Header style={{
				background: '#0837a8',
				color: '#fff',
				minHeight: "40px",
				height: "auto",
				display: 'flex',
				alignItems: 'center',
				justifyContent: 'space-between',
				padding: '2px 12px',
				flexWrap: 'wrap',
				gap: '4px'
			}}>
				<Space size="large" style={{ display: 'flex', alignItems: 'center', flexWrap: 'wrap', height: "100%", justifyContent: "center" }}>
					<Button
						type="text"
						icon={collapsed ? <MenuUnfoldOutlined /> : <MenuFoldOutlined />}
						onClick={() => setCollapsed(!collapsed)}
						style={{
							fontSize: '16px',
							color: '#fff',
							width: 40,
							height: 40,
						}}
					/>
					<div style={{ height: "100%", display: "flex", gap: "10px", justifyContent: "center", alignItems: "center" }}>
						<img src={logo} alt="Logo" style={{ width: 24, height: 24 }} />
						{!collapsed && (
							<span style={{ fontWeight: 'bold', fontSize: 'clamp(14px, 1.2vw, 16px)', color: '#fff', whiteSpace: 'nowrap' }}>
								{t('layout.systemName')}
							</span>
						)}
					</div>
					<Select
						value={stationId}
						placeholder={t('layout.selectStation')}
						onChange={handleStationChange}
						options={stationList.map(s => ({ label: s.siteName, value: s.id }))}
						style={{
							width: 'clamp(160px, 15vw, 220px)',
							backgroundColor: '#0837a8',
							color: '#fff',
							border: 'none',
						}}
					/>
				</Space>

				<Space size="middle" style={{ flexWrap: 'wrap' }}>
					<Button
						type="text"
						icon={isFullScreen ? <CompressOutlined /> : <ExpandOutlined />}
						onClick={toggleFullScreen}
						style={{ color: '#fff', fontSize: 'clamp(12px, 1vw, 14px)' }}
					>
						{isFullScreen ? t('layout.exitFullScreen') : t('layout.fullScreen')}
					</Button>
					<LanguageSwitcher />
					<span style={{ fontSize: 'clamp(12px, 1vw, 13px)' }}>{time}</span>
					<Space
						style={{ cursor: 'pointer', padding: '0 4px' }}
						onClick={() => navigate('/profile')}
						className="hover:opacity-80"
					>
						{userInfo?.avatar && (
							<Avatar
								size="small"
								src={userInfo.avatar.startsWith('http') ? userInfo.avatar : `${envConfig.baseURL}${userInfo.avatar}`}
							/>
						)}
						<span style={{ fontSize: 'clamp(12px, 1vw, 14px)' }}>{userInfo?.nickName || userInfo?.username}</span>
						{userInfo?.roleKey === "admin" && <Tag color="red">管理员</Tag>}
						{userInfo?.roleKey === "manager" && <Tag color="orange">组织管理员</Tag>}
						{userInfo?.roleKey === "siteManager" && <Tag color="blue">场站管理员</Tag>}


					</Space>
					<Button type="text" danger icon={<LogoutOutlined />} onClick={handleLogout} style={{ fontSize: 'clamp(12px, 1vw, 14px)' }}>
						{t('layout.logout')}
					</Button>
				</Space>
			</Header>

			<Layout style={{ flex: 1, overflow: 'hidden', background: '#fff' }}>
				<Sider
					collapsible
					collapsed={collapsed}
					trigger={null}
					width={180}
					theme="light"
					style={{ borderRight: '1px solid #e5e7eb' }}
				>
					<Layout
						style={{
							height: '100%',
							flexDirection: 'column',
							background: '#fff',
							overflow: 'hidden'
						}}
					>
						<div style={{ flex: 1, overflowY: 'auto', overflowX: 'hidden' }}>
							<Menu
								mode="inline"
								theme="light"
								items={menuList}
								selectedKeys={[location.pathname]}
								onClick={({ key }) => navigate(key)}
								style={{ borderRight: 0 }}
							/>
						</div>

						{!collapsed && currentStation && (
							<Card
								size="small"
								style={{
									border: '1px solid #e5e7eb',
									borderRadius: 8,
									margin: 4,
									marginBottom: 8
								}}
								styles={{ body: { padding: '12px 4px' } }}
							>
								<div style={{ textAlign: 'left' }}>
									<div style={{ fontSize: 14, fontWeight: 600, marginBottom: 8 }}>
										{currentStation.siteName || t('layout.defaultStationName')}
									</div>
									<img
										style={{ width: '100%', borderRadius: "8px", marginBottom: 8 }}
										src="https://images.unsplash.com/photo-1509391366360-2e959784a276?ixlib=rb-1.2.1&auto=format&fit=crop&w=1200&q=80"
									/>
									<div style={{ fontSize: 11, color: '#666', lineHeight: 1.8 }}>
										{/*<div>{JSON.stringify(currentStation, null, 2)}</div>*/}
										<div>{t('layout.stationAddress')}：{currentStation.address || t('layout.defaultStationAddress')}</div>
										<div>{t('layout.stationType')}：{currentStation.type || t('layout.groundStation')}</div>
										<div style={{ marginTop: 4, display: 'flex', alignItems: 'center', color: '#41ad0a' }}>
											<span>{t('layout.runningStatus')}:</span>
											<span style={{ marginLeft: 4 }}>●</span>
											<span style={{ marginLeft: 4 }}>{t('layout.normalRunning')}</span>
										</div>
									</div>
								</div>
							</Card>
						)}
					</Layout>
				</Sider>

				<Content style={{ background: '#f4f7f9', overflowY: 'auto', padding: '4px 8px' }}>
					<Outlet />
				</Content>
			</Layout>
		</Layout>
	);
}