import React, { useEffect, useRef, useState } from 'react';  
import { Card, Result, Select, Button } from 'antd';
import { CheckCircleOutlined } from '@ant-design/icons';
import * as echarts from 'echarts';
import StandardTable from '@/components/StandardTable';
import styles from './RiskAssessment.less';
// import './RiskAssessment.less';

import img1 from '@/assets/safe_majorHazard/online_monitoring/img1.png';
import img2 from '@/assets/safe_majorHazard/online_monitoring/img2.png';
import img3 from '@/assets/safe_majorHazard/online_monitoring/img3.png';
import map1 from '@/assets/safe_majorHazard/online_monitoring/map.png';
import risk1 from '@/assets/safe_majorHazard/online_monitoring/risk1.png';
import risk2 from '@/assets/safe_majorHazard/online_monitoring/risk2.png';
import risk3 from '@/assets/safe_majorHazard/online_monitoring/risk3.png';


const RiskAssessment = () => { 
    const chartRef = useRef(null);
    const [selectedRowKeys, setSelectedRowKeys] = useState([]);
    const [selectedRows, setSelectedRows] = useState([]);
    const [loading, setLoading] = useState(false);
    const [dataSource, setDataSource] = useState([]);
    const [pagination, setPagination] = useState({
        current: 1,
        pageSize: 5,
        total: 0,
    });

    useEffect(() => {
        if (chartRef.current) {
            const chart = echarts.init(chartRef.current);
            
            // 强制初始化时调整大小
            setTimeout(() => {
                if (chart && !chart.isDisposed()) {
                    chart.resize();
                }
            }, 100);

            const option = {
                color: ['#FF2526', '#FF8800', '#FFC403', '#65E5F9'],

                legend: {
                    data: ['重大风险', '较高风险', '一般风险', '低风险'],
                    top: "-3px",
                    left: "center",
                    itemGap: 40, 
                    itemWidth: 20,
                    itemHeight: 9,
                    textStyle: {
                        fontSize: 10
                    }
                },
                
                grid: {
                    left: '2%',
                    right: '4%',
                    bottom: '2%',
                    top: '12%',
                    containLabel: true
                },

                xAxis: {
                    type: 'category',
                    boundaryGap: false,
                    data: ['9/22', '9/23', '9/24', '9/25', '9/26', '9/27', '9/28'],
                    axisLabel: {
                        fontSize: 10
                    }
                },
                yAxis: {
                    type: 'value',
                    min: 0,
                    max: 30,
                    axisLabel: {
                        formatter: '{value}',
                        fontSize: 10
                    }
                },
                series: [
                    {
                        name: '重大风险',
                        type: 'line',
                        smooth: true,
                        lineStyle: {
                            width: 1.5,
                            color: '#FF2526'
                        },
                        areaStyle: {
                            color: {
                                type: 'linear',
                                x: 0,
                                y: 0,
                                x2: 0,
                                y2: 1,
                                colorStops: [
                                    { offset: 0, color: 'rgba(38, 12, 12, 0.4)' },
                                    { offset: 1, color: 'rgba(255, 37, 38, 0)' }
                                ]
                            }
                        },
                        symbol: 'none',
                        symbolSize: 6,
                        itemStyle: {
                            color: '#fff',
                            borderColor: '#FF2526',
                            borderWidth: 1
                        },
                        data: [8, 15, 12, 22, 18, 26, 20]
                    },
                    {
                        name: '较高风险',
                        type: 'line',
                        smooth: true,
                        lineStyle: {
                            width: 1.5,
                            color: '#FF8800'
                        },
                        areaStyle: {
                            color: {
                                type: 'linear',
                                x: 0,
                                y: 0,
                                x2: 0,
                                y2: 1,
                                colorStops: [
                                    { offset: 0, color: 'rgba(255, 136, 0, 0.4)' },
                                    { offset: 1, color: 'rgba(255, 136, 0, 0)' }
                                ]
                            }
                        },
                        symbol: 'none',
                        symbolSize: 6,
                        itemStyle: {
                            color: '#fff',
                            borderColor: '#FF8800',
                            borderWidth: 1
                        },
                        data: [5, 8, 6, 12, 10, 15, 13]
                    },
                    {
                        name: '一般风险',
                        type: 'line',
                        smooth: true,
                        lineStyle: {
                            width: 1.5,
                            color: '#FFC403'
                        },
                        areaStyle: {
                            color: {
                                type: 'linear',
                                x: 0,
                                y: 0,
                                x2: 0,
                                y2: 1,
                                colorStops: [
                                    { offset: 0, color: 'rgba(255, 196, 3, 0.4)' },
                                    { offset: 1, color: 'rgba(255, 196, 3, 0)' }
                                ]
                            }
                        },
                        symbol: 'none',
                        symbolSize: 6,
                        itemStyle: {
                            color: '#fff',
                            borderColor: '#FFC403',
                            borderWidth: 1
                        },
                        data: [12, 18, 15, 25, 22, 24, 26]
                    },
                    {
                        name: '低风险',
                        type: 'line',
                        smooth: true,
                        lineStyle: {
                            width: 1.5,
                            color: '#65E5F9'
                        },
                        areaStyle: {
                            color: {
                                type: 'linear',
                                x: 0,
                                y: 0,
                                x2: 0,
                                y2: 1,
                                colorStops: [
                                    { offset: 0, color: 'rgba(101, 229, 249, 0.4)' },
                                    { offset: 1, color: 'rgba(101, 229, 249, 0)' }
                                ]
                            }
                        },
                        symbol: 'none',
                        symbolSize: 6,
                        itemStyle: {
                            color: '#fff',
                            borderColor: '#65E5F9',
                            borderWidth: 1  
                        },
                        data: [3, 5, 7, 9, 6, 8, 4]
                    }
                ]
            };

            chart.setOption(option);

            // 响应式调整 - 使用多种方式监听容器尺寸变化
            let resizeTimer = null;
            const handleResize = () => {
                // 防抖处理，避免频繁调用resize
                if (resizeTimer) {
                    clearTimeout(resizeTimer);
                }
                resizeTimer = setTimeout(() => {
                    if (chart && !chart.isDisposed()) {
                        chart.resize();
                    }
                }, 50); // 减少延迟时间
            };
            
            // 监听窗口大小变化
            window.addEventListener('resize', handleResize);
            
            // 监听容器尺寸变化（解决菜单栏伸缩时的自适应问题）
            let resizeObserver = null;
            if (window.ResizeObserver) {
                resizeObserver = new ResizeObserver((entries) => {
                    for (let entry of entries) {
                        // 使用requestAnimationFrame确保在下一帧执行
                        requestAnimationFrame(() => {
                            handleResize();
                        });
                    }
                });
                resizeObserver.observe(chartRef.current);
            }

            // 额外监听父容器的尺寸变化
            const parentContainer = chartRef.current?.parentElement;
            let parentObserver = null;
            if (parentContainer && window.ResizeObserver) {
                parentObserver = new ResizeObserver((entries) => {
                    for (let entry of entries) {
                        requestAnimationFrame(() => {
                            handleResize();
                        });
                    }
                });
                parentObserver.observe(parentContainer);
            }

            // 使用MutationObserver监听DOM结构变化（菜单展开收起时）
            const mutationObserver = new MutationObserver((mutations) => {
                mutations.forEach((mutation) => {
                    if (mutation.type === 'attributes' && 
                        (mutation.attributeName === 'class' || mutation.attributeName === 'style')) {
                        // 延迟执行，确保DOM更新完成
                        setTimeout(() => {
                            handleResize();
                        }, 200);
                    }
                });
            });

            // 监听整个页面的class和style变化
            mutationObserver.observe(document.body, {
                attributes: true,
                attributeFilter: ['class', 'style'],
                subtree: true
            });

            return () => {
                window.removeEventListener('resize', handleResize);
                if (resizeObserver) {
                    resizeObserver.disconnect();
                }
                if (parentObserver) {
                    parentObserver.disconnect();
                }
                if (mutationObserver) {
                    mutationObserver.disconnect();
                }
                if (resizeTimer) {
                    clearTimeout(resizeTimer);
                }
                if (chart && !chart.isDisposed()) {
                    chart.dispose();
                }
            };
        }
    }, []);

    // 表格列定义
    const columns = [
        {
            title: '编号',
            dataIndex: 'id',
            key: 'id',
            width: 80,
            render: (text, record, index) => {
                const page = pagination.current || 1;
                const pageSize = pagination.pageSize || 5;
                const number = (page - 1) * pageSize + index + 1;
                return `0${number}`.slice(-2);
            }
        },
        {
            title: '设备编号',
            dataIndex: 'deviceId',
            key: 'deviceId',
            width: 120,
        },
        {
            title: '风险等级',
            dataIndex: 'riskLevel',
            key: 'riskLevel',
            width: 100,
            render: (text) => {
                const colorMap = {
                    '高': '#FF4D4F',
                    '中': '#FAAD14',
                    '低': '#52C41A'
                };
                return <span style={{ color: colorMap[text] || '#333' }}>{text}</span>;
            }
        },
        {
            title: '预警时间',
            dataIndex: 'warningTime',
            key: 'warningTime',
            width: 150,
        },
        {
            title: '主要原因',
            dataIndex: 'mainReason',
            key: 'mainReason',
            width: 200,
        },
        {
            title: '处理状态',
            dataIndex: 'status',
            key: 'status',
            width: 100,
            render: (text) => {
                const statusMap = {
                    '未处理': { color: '#FF4D4F', bg: '#FFF2F0' },
                    '处理中': { color: '#FAAD14', bg: '#FFFBE6' },
                    '已处理': { color: '#52C41A', bg: '#F6FFED' }
                };
                const status = statusMap[text] || { color: '#333', bg: '#F5F5F5' };
                return (
                    <span style={{ 
                        color: status.color, 
                        backgroundColor: status.bg,
                        padding: '2px 8px',
                        borderRadius: '4px',
                        fontSize: '12px'
                    }}>
                        {text}
                    </span>
                );
            }
        },
        {
            title: '操作',
            key: 'action',
            width: 120,
            render: (_, record) => (
                <div>
                    <Button type="link" size="small" style={{ padding: 0, marginRight: 8 }}>
                        查看
                    </Button>
                    <Button type="link" size="small" style={{ padding: 0 }}>
                        详情
                    </Button>
                </div>
            ),
        },
    ];

    // 模拟数据
    const mockData = [
        {
            key: '1',
            id: '001',
            deviceId: 'DEV-001',
            riskLevel: '高',
            warningTime: '2024-01-15 08:30:25',
            mainReason: '设备温度异常升高',
            status: '未处理',
        },
        {
            key: '2',
            id: '002',
            deviceId: 'DEV-002',
            riskLevel: '中',
            warningTime: '2024-01-15 09:15:10',
            mainReason: '压力波动超出正常范围',
            status: '处理中',
        },
        {
            key: '3',
            id: '003',
            deviceId: 'DEV-003',
            riskLevel: '高',
            warningTime: '2024-01-15 10:45:30',
            mainReason: '液位传感器故障',
            status: '已处理',
        },
        {
            key: '4',
            id: '004',
            deviceId: 'DEV-004',
            riskLevel: '高',
            warningTime: '2024-01-15 11:20:45',
            mainReason: '检测到气体泄漏',
            status: '未处理',
        },
        {
            key: '5',
            id: '005',
            deviceId: 'DEV-005',
            riskLevel: '低',
            warningTime: '2024-01-15 12:10:20',
            mainReason: '设备振动异常',
            status: '已处理',
        },
        {
            key: '6',
            id: '006',
            deviceId: 'DEV-006',
            riskLevel: '中',
            warningTime: '2024-01-15 13:25:15',
            mainReason: '流量传感器读数异常',
            status: '未处理',
        },
        {
            key: '7',
            id: '007',
            deviceId: 'DEV-007',
            riskLevel: '高',
            warningTime: '2024-01-15 14:10:30',
            mainReason: '储罐压力超限',
            status: '处理中',
        },
        {
            key: '8',
            id: '008',
            deviceId: 'DEV-008',
            riskLevel: '中',
            warningTime: '2024-01-15 15:45:20',
            mainReason: '管道温度异常',
            status: '已处理',
        },
        {
            key: '9',
            id: '009',
            deviceId: 'DEV-009',
            riskLevel: '高',
            warningTime: '2024-01-15 16:30:45',
            mainReason: '阀门控制系统故障',
            status: '未处理',
        },
        {
            key: '10',
            id: '010',
            deviceId: 'DEV-010',
            riskLevel: '低',
            warningTime: '2024-01-15 17:15:10',
            mainReason: '轻微泄漏检测',
            status: '已处理',
        },
        {
            key: '11',
            id: '011',
            deviceId: 'DEV-011',
            riskLevel: '高',
            warningTime: '2024-01-15 18:20:35',
            mainReason: '安全阀异常开启',
            status: '处理中',
        },
        {
            key: '12',
            id: '012',
            deviceId: 'DEV-012',
            riskLevel: '中',
            warningTime: '2024-01-15 19:05:50',
            mainReason: '液位计读数不稳定',
            status: '未处理',
        },
    ];

    // 初始化数据
    useEffect(() => {
        setPagination(prev => ({ ...prev, total: mockData.length }));
    }, []);

    // 根据分页获取当前页数据
    const getCurrentPageData = () => {
        const { current, pageSize } = pagination;
        const startIndex = (current - 1) * pageSize;
        const endIndex = startIndex + pageSize;
        return mockData.slice(startIndex, endIndex);
    };

    // 表格选择变化
    const onSelectChange = (newSelectedRowKeys, newSelectedRows) => {
        setSelectedRowKeys(newSelectedRowKeys);
        setSelectedRows(newSelectedRows);
    };

    // 分页变化处理
    const handleTableChange = (pagination) => {
        setPagination(prev => ({
            ...prev,
            current: pagination.current,
            pageSize: pagination.pageSize,
        }));
    };

    return (  
        <div className={styles.Rcontainer}>
            {/* 第一个div - 高度20% */}
            <div className={styles.RcontainerTop}>
                <div className={styles.sectionContent}>
                    <div className={styles.blocksContainer}>
                        {/* 块1 */}
                        <div className={styles.blockItem}>
                            <div className={styles.blockLeft}>
                                <div className={styles.blockTitle}>总危险源数量</div>
                                <div className={styles.blockNumber}>65</div>
                                <div className={styles.blockChange}>
                                    <span className={styles.arrow}>↑</span>
                                    较昨日 +2
                                </div>
                            </div>
                            <div className={styles.blockRight}>
                                <img src={img1} alt="总危险源数量" className={styles.blockImage} />
                            </div>
                        </div>

                        {/* 块2 */}
                        <div className={styles.blockItem}>
                            <div className={styles.blockLeft}>
                                <div className={styles.blockTitle}>高风险设备</div>
                                <div className={styles.blockNumber}>65</div>
                                <div className={styles.blockChange}>
                                    <span className={styles.arrow}>↑</span>
                                    较昨日 +2
                                </div>
                            </div>
                            <div className={styles.blockRight}>
                                <img src={img2} alt="高风险设备" className={styles.blockImage} />
                            </div>
                        </div>

                        {/* 块3 */}
                        <div className={styles.blockItem}>
                            <div className={styles.blockLeft}>
                                <div className={styles.blockTitle}>今日预警次数</div>
                                <div className={styles.blockNumber}>65</div>
                                <div className={styles.blockChange}>
                                    <span className={styles.arrow}>↓</span>
                                    较昨日 -2
                                </div>
                            </div>
                            <div className={styles.blockRight}>
                                <img src={img3} alt="今日预警次数" className={styles.blockImage} />
                            </div>
                        </div>

                        {/* 块4 */}
                        <div className={styles.blockItem}>
                            <div className={styles.blockLeft}>
                                <div className={styles.blockTitle}>未处理预警</div>
                                <div className={styles.blockNumber}>65</div>
                                <div className={styles.blockChange}>
                                    <span className={styles.arrow}>—</span>
                                    与昨日持平
                                </div>
                            </div>
                            <div className={styles.blockRight}>
                                <img src={img1} alt="未处理预警" className={styles.blockImage} />
                            </div>
                        </div>

                        {/* 块5 */}
                        <div className={styles.blockItem}>
                            <div className={styles.blockLeft}>
                                <div className={styles.blockTitle}>已处理预警</div>
                                <div className={styles.blockNumber}>65</div>
                                <div className={styles.blockChange}>
                                    <CheckCircleOutlined className={styles.checkIcon} />
                                    已完成
                                </div>
                            </div>
                            <div className={styles.blockRight}>
                                <img src={img2} alt="已处理预警" className={styles.blockImage} />
                            </div>
                        </div>
                    </div>
                </div>
            </div>

       
            <div className={styles.RcontainerMiddle}>
                <div className={styles.sectionContent}>
                    <div className={styles.middleBlock1}>
                        <div className={styles.block1Header}>
                            
                            <div className={styles.block1Title}>
                                <div className={styles.titleIcon}></div>
                                危险源风险热力分布
                            </div>
                            <Select
                                className={styles.block1Select}
                                defaultValue="全部区域"
                                options={[
                                    { value: '全部区域', label: '全部区域' },
                                    { value: '区域A', label: '区域A' },
                                    { value: '区域B', label: '区域B' },
                                    { value: '区域C', label: '区域C' }
                                ]}
                            />
                        </div>
                        {/* 风险等级图例 */}
                        <div className={styles.riskLegend}>
                            <div className={styles.legendItem}>
                                <div className={styles.legendDot} style={{ backgroundColor: '#F53F3F' }}></div>
                                <span className={styles.legendText}>重大风险</span>
                            </div>
                            <div className={styles.legendItem}>
                                <div className={styles.legendDot} style={{ backgroundColor: '#FF7D00' }}></div>
                                <span className={styles.legendText}>较大风险</span>
                            </div>
                            <div className={styles.legendItem}>
                                <div className={styles.legendDot} style={{ backgroundColor: '#FFAA01' }}></div>
                                <span className={styles.legendText}>一般风险</span>
                            </div>
                            <div className={styles.legendItem}>
                                <div className={styles.legendDot} style={{ backgroundColor: '#65E5F9' }}></div>
                                <span className={styles.legendText}>低风险</span>
                            </div>
                        </div>
                        <div className={styles.block1Chart}>
                           
                            <img src={map1} alt="地图" className={styles.mapImage} />
                        </div>
                    </div>
                    <div className={styles.middleBlock2}>
                        <div className={styles.middleBlock2Title}>
                            <div className={styles.titleLeft}>
                                <div className={styles.titleIcon}></div>
                                <div>风险等级趋势</div>
                            </div>
                            <div className={styles.titleRight}>
                        
                                <Select
                                    style={{ width: 100 }}
                                    defaultValue="近七天"
                                    options={[
                                        { value: '近三天', label: '近3天' },
                                        { value: '近30天', label: '近30天' },
                                    ]}
                                />
                            </div>
                        </div>
                        <div className={styles.middleBlock2Chart} ref={chartRef}>
                        </div>
                    </div>

                </div>
            </div>

             {/* 第三个div - 占满剩余位置 */}
             <div className={styles.RcontainerBottom}>
                 <div className={styles.sectionContent}>
                     <div className={styles.leftBlock}>
                         {/* 第一行块 - 蓝色方块加标题 */}
                         <div className={styles.leftBlockTitle}>
                             <div className={styles.titleIcon}></div>
                             <div>风险评估参数</div>
                         </div>
                         
                         {/* 第二行块 - 图片 */}
                         <div className={styles.leftBlockImage}>
                             {/* <img src={risk2} alt="风险评估图" style={{ width: '40%', height: '40%', objectFit: 'cover' }} /> */}
                         </div>
                         
                         {/* 第三行块 */}
                         <div className={styles.leftBlockItem}>
                             <div className={styles.itemTitle}>风险等级</div>
                             <div className={styles.itemValue}>高风险</div>
                         </div>
                         
                         {/* 第四行块 */}
                         <div className={styles.leftBlockItem}>
                             <div className={styles.itemTitle}>评估时间</div>
                             <div className={styles.itemValue}>2024-01-15</div>
                         </div>
                         
                         {/* 第五行块 */}
                         <div className={styles.leftBlockItem}>
                             <div className={styles.itemTitle}>评估人员</div>
                             <div className={styles.itemValue}>张三</div>
                         </div>
                     </div>
                     
                     <div className={styles.rightBlock}>
                         {/* 表格 */}
                         <div className={styles.tableHeader}>
                             <div className={styles.tableTitle}>
                                 <div className={styles.titleIcon}></div>
                                 <div>最新预警信息</div>
                             </div>
                         </div>

                         {/* 表格 */}
                         <div className={styles.tableContainer}>
                             <StandardTable
                                 columns={columns}
                                 data={{
                                     list: getCurrentPageData(),
                                     pagination: pagination
                                 }}
                                 loading={loading}
                                 selectionType="checkbox"
                                 onSelectRow={onSelectChange}
                                 onChange={handleTableChange}
                                 pagination={{
                                     ...pagination,
                                     showSizeChanger: false,
                                     showQuickJumper: true,
                                     showTotal: (total, range) => 
                                         `共 ${total} 条`,
                                 }}
                                 scroll={{ x: 1200 }}
                             />
                         </div>
                     </div>
                 </div>
             </div>
                </div>
    ); 
}; 

export default RiskAssessment;