/**
 * @class DataMonitor
 * @extends HTMLElement
 * @description 数据监控组件的基础类
 */
class DataMonitor extends HTMLElement {
    constructor() {
        super();
        this.attachShadow({ mode: 'open' });
        this.interfaces = []; // 存储接口数据
        this.filteredInterfaces = []; // 存储过滤后的接口数据
        this.searchText = ''; // 搜索文本
        this.searchTimeout = null; // 用于防抖的定时器
        this.cursorPosition = 0; // 存储光标位置
        this.tableData = []; // 表格数据，存储已添加的接口
        this.chart = null; // Chart.js 实例
        this.tableHeight = 220; // 表格初始高度(px)
        this.isResizing = false; // 是否正在拖动分隔线
        this.startY = 0; // 拖动起始Y
        this.startTableHeight = 0; // 拖动起始表格高度
        this.activeChartIndexes = []; // 当前绘图的行索引
        // 列宽数组，初始为像素
        this.colWidths = [160, 160, 120, 180, 320]; // px
        this.dragColIndex = null;
        this.dragStartX = 0;
        this.dragStartWidth = 0;
        this._colWidthInited = false;
        this._resizeEventBinded = false;
        this.monitorId = `data_monitor_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`; // 添加监控器ID
        this.dataUpdateTimer = null; // 数据更新定时器
    }

    connectedCallback() {
        this.loadInterfaces();
        // 延迟多次尝试，直到拿到有效宽度
        const tryInitColWidth = (tryCount = 0) => {
            const section = this.shadowRoot && this.shadowRoot.querySelector('.table-section');
            if (section && section.clientWidth > 0) {
                const totalWidth = section.clientWidth;
                const ratios = [0.17, 0.17, 0.13, 0.19, 0.34];
                this.colWidths = ratios.map(r => Math.floor(totalWidth * r));
                this._colWidthInited = true;
                this.render();
            } else if (tryCount < 10) {
                setTimeout(() => tryInitColWidth(tryCount + 1), 50);
            }
        };
        tryInitColWidth();
        // 只绑定一次全局拖动事件
        if (!this._resizeEventBinded) {
            window.addEventListener('mousemove', this._onWindowMouseMove = (e) => {
                if (this.isResizing) {
                    const delta = e.clientY - this.startY;
                    let newHeight = this.startTableHeight + delta;
                    const minHeight = 60;
                    const maxHeight = Math.max(120, this.offsetHeight - 180);
                    if (newHeight < minHeight) newHeight = minHeight;
                    if (newHeight > maxHeight) newHeight = maxHeight;
                    this.tableHeight = newHeight;
                    this.render();
                }
            });
            window.addEventListener('mouseup', this._onWindowMouseUp = () => {
                if (this.isResizing) {
                    this.isResizing = false;
                    const divider = this.shadowRoot.querySelector('.divider');
                    if (divider) divider.classList.remove('active');
                    document.body.style.cursor = '';
                    document.body.style.userSelect = '';
                }
            });
            this._resizeEventBinded = true;
        }
    }

    /**
     * @description 从localStorage获取当前选择的配置
     * @returns {Object} 包含plane、configurationId和domainId的对象
     */
    getCurrentSelection() {
        const selection = localStorage.getItem('xnsim-selection');
        
        if (!selection) {
            return { plane: '', configurationId: '', domainId: '' };
        }

        try {
            const parsedSelection = JSON.parse(selection);
            return {
                plane: parsedSelection.plane || '',
                configurationId: parsedSelection.configurationId || '',
                domainId: parsedSelection.domainId || ''
            };
        } catch (error) {
            return { plane: '', configurationId: '', domainId: '' };
        }
    }

    /**
     * @description 加载接口数据
     */
    async loadInterfaces() {
        try {
            const { configurationId } = this.getCurrentSelection();
            if (!configurationId) {
                console.warn('未找到配置ID');
                return;
            }

            const response = await fetch(`/api/interface/list?systemName=XNSim&confID=${configurationId}`);
            const data = await response.json();
            this.interfaces = data;
            this.filteredInterfaces = this.filterInterfaces(this.searchText);
            this.render();
        } catch (error) {
            console.error('加载接口数据失败:', error);
        }
    }

    /**
     * @description 根据搜索文本过滤接口
     * @param {string} searchText - 搜索文本
     * @returns {Array} 过滤后的接口数据
     */
    filterInterfaces(searchText) {
        if (!searchText) return this.interfaces;
        
        return this.interfaces.filter(item => 
            item.InterfaceName.toLowerCase().includes(searchText.toLowerCase()) ||
            item.ModelStructName.toLowerCase().includes(searchText.toLowerCase())
        );
    }

    /**
     * @description 处理搜索输入
     * @param {Event} event - 输入事件
     */
    handleSearch(event) {
        this.searchText = event.target.value;
        this.cursorPosition = event.target.selectionStart;
        
        // 清除之前的定时器
        if (this.searchTimeout) {
            clearTimeout(this.searchTimeout);
        }
        
        // 设置新的定时器，300ms后执行搜索
        this.searchTimeout = setTimeout(() => {
            this.filteredInterfaces = this.filterInterfaces(this.searchText);
            this.render();
            
            // 在下一个事件循环中恢复焦点和光标位置
            requestAnimationFrame(() => {
                const searchInput = this.shadowRoot.querySelector('.search-input');
                if (searchInput) {
                    searchInput.focus();
                    searchInput.setSelectionRange(this.cursorPosition, this.cursorPosition);
                }
            });
        }, 300);
    }

    /**
     * @description 处理树节点双击事件，将接口添加到表格
     * @param {Object} item - 接口对象
     */
    handleTreeItemDblClick(item) {
        // 防止重复添加
        if (!this.tableData.some(row => row.InterfaceName === item.InterfaceName && row.ModelStructName === item.ModelStructName)) {
            this.tableData.push({
                InterfaceName: item.InterfaceName,
                ModelStructName: item.ModelStructName,
                InjectValue: '',
                Drawing: false,
                isMonitoring: false,
                color: this.getRandomColor()
            });
            this.renderTable();
        }
    }

    /**
     * @description 初始化DDS监控服务
     * @returns {Promise<boolean>} 初始化是否成功
     */
    async initializeDDSMonitor() {
        try {
            // 获取当前选择的配置
            const selection = this.getCurrentSelection();
            const { domainId } = selection;
            if (!domainId) {
                throw new Error('未找到有效的域ID，请确保已选择构型并等待构型加载完成');
            }

            // 检查DDS监控状态
            const statusResponse = await fetch('/api/dds-monitor/status');
            if (!statusResponse.ok) {
                throw new Error(`获取DDS监控状态失败: ${statusResponse.status} ${statusResponse.statusText}`);
            }
            const statusData = await statusResponse.json();

            // 如果未初始化，则初始化
            if (!statusData.isInitialized) {
                const initResponse = await fetch('/api/dds-monitor/initialize', {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    body: JSON.stringify({
                        domainId,
                        monitorId: this.monitorId
                    })
                });

                if (!initResponse.ok) {
                    const errorData = await initResponse.json();
                    throw new Error(`初始化DDS监控失败: ${errorData.error || initResponse.statusText}`);
                }
            }

            return true;
        } catch (error) {
            throw error;
        }
    }

    /**
     * @description 按结构体名称分组获取接口数据
     * @returns {Object} 按结构体名称分组的接口数据
     */
    getGroupedInterfaces() {
        return this.tableData.reduce((groups, row) => {
            if (!groups[row.ModelStructName]) {
                groups[row.ModelStructName] = [];
            }
            groups[row.ModelStructName].push(row.InterfaceName);
            return groups;
        }, {});
    }

    /**
     * @description 估算数据缓冲区大小
     * @param {Array<string>} interfaceNames - 接口名称数组
     * @returns {number} 估算的缓冲区大小（字节）
     */
    estimateBufferSize(interfaceNames) {
        // 基础开销：JSON格式的开销（括号、引号、逗号等）
        const baseOverhead = 100;
        
        // 每个接口的估算大小
        const interfaceSize = interfaceNames.reduce((total, name) => {
            // 接口名称长度 + 引号 + 冒号
            const nameOverhead = name.length + 4;
            // 假设每个数据值平均长度为50字节（包括数字、字符串等）
            const estimatedValueSize = 50;
            // 逗号分隔符
            const separatorSize = 1;
            
            return total + nameOverhead + estimatedValueSize + separatorSize;
        }, 0);

        // 添加一些额外的缓冲空间（20%）
        const safetyMargin = Math.ceil((baseOverhead + interfaceSize) * 0.2);
        
        // 确保返回的大小是4KB的倍数，并设置最小值为8KB
        const minSize = 8192;
        const size = Math.max(minSize, Math.ceil((baseOverhead + interfaceSize + safetyMargin) / 4096) * 4096);
        
        return size;
    }

    /**
     * @description 启动数据更新定时器
     */
    startDataUpdateTimer() {
        if (this.dataUpdateTimer) {
            clearInterval(this.dataUpdateTimer);
        }

        this.dataUpdateTimer = setInterval(async () => {
            try {
                const groupedInterfaces = this.getGroupedInterfaces();
                
                // 对每个结构体启动监控并获取数据
                for (const [structName, interfaceNames] of Object.entries(groupedInterfaces)) {
                    try {
                        // 启动数据监控
                        const startResponse = await fetch('/api/data-monitor/start', {
                            method: 'POST',
                            headers: {
                                'Content-Type': 'application/json'
                            },
                            body: JSON.stringify({ structName })
                        });

                        if (!startResponse.ok) {
                            throw new Error(`启动数据监控失败: ${structName}`);
                        }

                        // 获取监控数据
                        const interfaceNamesStr = JSON.stringify(interfaceNames);
                        // 估算所需的缓冲区大小
                        const bufferSize = this.estimateBufferSize(interfaceNames);
                        
                        const infoResponse = await fetch(`/api/data-monitor/info?structName=${encodeURIComponent(structName)}&interfaceName=${encodeURIComponent(interfaceNamesStr)}&bufferSize=${bufferSize}`);
                        
                        if (!infoResponse.ok) {
                            throw new Error(`获取监控数据失败: ${structName}`);
                        }

                        const responseData = await infoResponse.json();
                        
                        if (!responseData.success) {
                            throw new Error(`获取监控数据失败: ${responseData.message || '未知错误'}`);
                        }

                        if (!responseData.data) {
                            throw new Error(`获取监控数据失败: 返回数据为空`);
                        }

                        // 更新表格数据
                        this.tableData.forEach(row => {
                            if (row.ModelStructName === structName && responseData.data[row.InterfaceName]) {
                                row.monitorData = responseData.data[row.InterfaceName];
                            }
                        });
                    } catch (structError) {
                        console.error(`处理结构体 ${structName} 时出错:`, structError);
                        // 继续处理其他结构体
                        continue;
                    }
                }

                // 更新表格显示
                this.renderTable();
            } catch (error) {
                console.error('数据更新失败:', error);
                // 如果发生错误，停止定时器
                this.stopDataUpdateTimer();
                // 更新UI状态
                const globalMonitorBtn = this.shadowRoot.getElementById('globalMonitorBtn');
                const statusIndicator = this.shadowRoot.getElementById('statusIndicator');
                const statusText = this.shadowRoot.getElementById('statusText');
                
                if (globalMonitorBtn) {
                    globalMonitorBtn.textContent = '开始监控';
                    globalMonitorBtn.classList.remove('monitoring');
                }
                if (statusIndicator) {
                    statusIndicator.classList.remove('active');
                    statusIndicator.classList.add('error');
                }
                if (statusText) {
                    statusText.textContent = '监控错误';
                }
                
                // 清空所有监控数据
                this.tableData.forEach(row => {
                    row.isMonitoring = false;
                    row.monitorData = '';
                });
                
                this.renderTable();
                alert(`数据监控发生错误: ${error.message}`);
            }
        }, 1000); // 每秒更新一次
    }

    /**
     * @description 停止数据更新定时器，并通知后端停止监控所有相关结构体
     */
    async stopDataUpdateTimer() {
        // 先清理前端定时器
        if (this.dataUpdateTimer) {
            clearInterval(this.dataUpdateTimer);
            this.dataUpdateTimer = null;
        }
        // 收集所有正在监控的结构体名（去重）
        const monitoringStructs = Array.from(new Set(
            this.tableData
                .filter(row => row.isMonitoring)
                .map(row => row.ModelStructName)
        ));
        // 并发调用后端接口，通知停止监控
        try {
            await Promise.all(
                monitoringStructs.map(structName =>
                    fetch('/api/data-monitor/stop', {
                        method: 'POST',
                        headers: { 'Content-Type': 'application/json' },
                        body: JSON.stringify({ structName })
                    })
                )
            );
        } catch (error) {
            console.error('停止后端监控时发生错误:', error);
        }
    }

    /**
     * @description 渲染表格内容
     */
    renderTable() {
        const tableBody = this.shadowRoot.querySelector('#monitor-table-body');
        if (tableBody) {
            tableBody.innerHTML = this.tableData.map((row, idx) => `
                <tr>
                    <td><span class="cell-text">${row.InterfaceName}</span></td>
                    <td><span class="cell-text">${row.ModelStructName}</span></td>
                    <td><span class="cell-text">${row.monitorData || ''}</span></td>
                    <td>
                        <input type="text" class="inject-input" data-index="${idx}" value="${row.InjectValue || ''}" placeholder="注入值" style="width:90px;" />
                    </td>
                    <td style="min-width:120px; white-space:nowrap;">
                        <button class="action-btn chart-btn${row.Drawing ? ' drawing' : ''}" data-index="${idx}" ${!row.isMonitoring ? 'disabled' : ''}>绘图</button>
                        <button class="action-btn inject-once-btn" data-index="${idx}" ${!row.isMonitoring ? 'disabled' : ''}>单次注入</button>
                        <button class="action-btn inject-loop-btn" data-index="${idx}" ${!row.isMonitoring ? 'disabled' : ''}>连续注入</button>
                        <button class="action-btn delete-btn" data-index="${idx}">删除</button>
                    </td>
                </tr>
            `).join('');
        }

        // 注入值输入限制
        this.shadowRoot.querySelectorAll('.inject-input').forEach(input => {
            input.oninput = (e) => {
                // 只允许数字、负号、小数点、逗号
                let v = e.target.value.replace(/[^0-9\-.,]/g, '');
                e.target.value = v;
                const idx = parseInt(e.target.getAttribute('data-index'));
                this.tableData[idx].InjectValue = v;
            };
        });

        // 按钮事件
        this.shadowRoot.querySelectorAll('.chart-btn').forEach(btn => {
            btn.onclick = (e) => {
                const idx = parseInt(btn.getAttribute('data-index'));
                // 多选支持
                if (this.tableData[idx].Drawing) {
                    this.tableData[idx].Drawing = false;
                } else {
                    this.tableData[idx].Drawing = true;
                }
                // 更新activeChartIndexes
                this.activeChartIndexes = this.tableData.map((row, i) => row.Drawing ? i : null).filter(i => i !== null);
                this.renderTable();
                this.updateChart();
            };
        });

        this.shadowRoot.querySelectorAll('.delete-btn').forEach(btn => {
            btn.onclick = (e) => {
                const idx = parseInt(btn.getAttribute('data-index'));
                this.tableData.splice(idx, 1);
                // 删除后同步更新activeChartIndexes
                this.activeChartIndexes = this.tableData.map((row, i) => row.Drawing ? i : null).filter(i => i !== null);
                this.renderTable();
                this.updateChart();
            };
        });
    }

    /**
     * @description 初始化图表
     */
    initChart() {
        const chartElement = this.shadowRoot.querySelector('#monitor-chart');
        if (!chartElement) return;
        if (typeof Chart === 'undefined') return;
        if (this.chart) {
            this.chart.destroy();
            this.chart = null;
        }
        const ctx = chartElement.getContext('2d');
        this.chart = new Chart(ctx, {
            type: 'line',
            data: {
                labels: [],
                datasets: []
            },
            options: {
                responsive: true,
                maintainAspectRatio: false,
                scales: {
                    y: { beginAtZero: true }
                },
                animation: false,
                plugins: {
                    legend: { display: true },
                    tooltip: { enabled: false }
                }
            }
        });
    }

    /**
     * @description 获取随机颜色
     * @returns {string} 颜色字符串
     */
    getRandomColor() {
        const letters = '0123456789ABCDEF';
        let color = '#';
        for (let i = 0; i < 6; i++) {
            color += letters[Math.floor(Math.random() * 16)];
        }
        return color;
    }

    /**
     * @description 更新图表，支持多条曲线
     */
    updateChart() {
        if (!this.chart) return;
        if (!this.activeChartIndexes || this.activeChartIndexes.length === 0) {
            this.chart.data.labels = [];
            this.chart.data.datasets = [];
            this.chart.update('none');
            return;
        }
        // 多条曲线
        const labels = Array.from({length: 20}, (_, i) => i+1);
        this.chart.data.labels = labels;
        this.chart.data.datasets = this.activeChartIndexes.map(idx => {
            const row = this.tableData[idx];
            return {
                label: row.InterfaceName,
                data: Array.from({length: 20}, () => (Math.random()*100).toFixed(2)),
                borderColor: row.color,
                fill: false
            };
        });
        this.chart.update('none');
    }

    render() {
        // 计算所有列宽之和
        const totalColWidth = this.colWidths.reduce((a, b) => a + b, 0);
        let tableWidthStyle = '';
        const section = this.shadowRoot && this.shadowRoot.querySelector('.table-section');
        const containerWidth = section ? section.clientWidth : 940;
        if (totalColWidth < containerWidth) {
            tableWidthStyle = 'width:100%;';
        } else {
            tableWidthStyle = 'width:max-content;';
        }

        // 首次渲染时动态分配列宽（已移至connectedCallback，防止死循环）
        // 按ModelStructName分组
        const groupedInterfaces = this.filteredInterfaces.reduce((groups, item) => {
            const group = groups[item.ModelStructName] || [];
            group.push(item);
            groups[item.ModelStructName] = group;
            return groups;
        }, {});

        this.shadowRoot.innerHTML = `
            <style>
                :host {
                    display: block;
                    height: 100%;
                    overflow: auto;
                    padding: 16px;
                    box-sizing: border-box;
                }

                .toolbar {
                    display: flex;
                    justify-content: space-between;
                    align-items: center;
                    padding: 8px 16px;
                    background: #fff;
                    border-radius: 8px;
                    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
                    margin-bottom: 16px;
                }

                .toolbar-left {
                    display: flex;
                    align-items: center;
                    gap: 12px;
                }

                .toolbar-right {
                    display: flex;
                    align-items: center;
                    gap: 12px;
                }

                .monitor-status {
                    display: flex;
                    align-items: center;
                    gap: 8px;
                    font-size: 14px;
                    color: #666;
                }

                .status-indicator {
                    width: 8px;
                    height: 8px;
                    border-radius: 50%;
                    background: #ccc;
                }

                .status-indicator.active {
                    background: #52c41a;
                }

                .status-indicator.error {
                    background: #ff4d4f;
                }

                .global-monitor-btn {
                    padding: 6px 16px;
                    border: none;
                    border-radius: 4px;
                    background: #1890ff;
                    color: white;
                    cursor: pointer;
                    font-size: 14px;
                    transition: all 0.3s;
                }

                .global-monitor-btn:hover {
                    background: #40a9ff;
                }

                .global-monitor-btn.monitoring {
                    background: #ff4d4f;
                }

                .global-monitor-btn.monitoring:hover {
                    background: #ff7875;
                }

                .monitor-container {
                    background-color: white;
                    border-radius: 8px;
                    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
                    padding: 16px;
                    height: calc(100% - 72px);
                    box-sizing: border-box;
                    display: flex;
                    gap: 16px;
                }

                .tree-container {
                    width: 300px;
                    border-right: 1px solid #e0e0e0;
                    padding-right: 16px;
                    display: flex;
                    flex-direction: column;
                }

                .search-box {
                    margin-bottom: 16px;
                }

                .search-input {
                    width: 100%;
                    padding: 8px;
                    border: 1px solid #d9d9d9;
                    border-radius: 4px;
                    font-size: 14px;
                }

                .tree-view {
                    flex-grow: 1;
                    overflow-y: auto;
                }

                .tree-group {
                    margin-bottom: 8px;
                }

                .group-header {
                    font-weight: bold;
                    padding: 8px;
                    background-color: #f5f5f5;
                    border-radius: 4px;
                    cursor: pointer;
                    display: flex;
                    align-items: center;
                    gap: 8px;
                }

                .group-content {
                    margin-left: 20px;
                    display: block;
                }

                .group-content.collapsed {
                    display: none;
                }

                .interface-item {
                    padding: 6px 8px;
                    cursor: pointer;
                    border-radius: 4px;
                    margin: 2px 0;
                    user-select: none;
                }

                .interface-item:hover {
                    background-color: #f0f0f0;
                }

                .content-area {
                    flex-grow: 1;
                    display: flex;
                    flex-direction: column;
                    height: 100%;
                    min-width: 0;
                    min-height: 0;
                    overflow: hidden;
                }

                .table-section {
                    background: #fff;
                    border-radius: 8px 8px 0 0;
                    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
                    padding: 0;
                    margin-bottom: 0;
                    overflow: hidden;
                    max-height: 70vh;
                    min-height: 60px;
                    height: ${this.tableHeight}px;
                    transition: height 0.1s;
                    display: flex;
                    flex-direction: column;
                }
                .table-scroll-x {
                    width: 100%;
                    height: 100%;
                    overflow-x: auto;
                    overflow-y: hidden;
                    display: flex;
                    flex-direction: column;
                }
                .table-header-fixed {
                    overflow: hidden;
                    width: fit-content;
                }
                .table-header-fixed .monitor-table {
                    width: max-content;
                    min-width: 100%;
                }
                .table-body-scroll {
                    flex: 1;
                    overflow-y: auto;
                    width: 100%;
                    overflow-x: hidden;
                    overflow-x: auto;
                    max-height: calc(100% - 1px);
                }
                .table-body-scroll .monitor-table {
                    width: max-content;
                    min-width: 100%;
                }
                .monitor-table {
                    width: max-content;
                    min-width: 100%;
                    border-collapse: separate;
                    border-spacing: 0;
                    table-layout: fixed;
                    min-width: unset;
                }
                .monitor-table th, .monitor-table td {
                    padding: 8px;
                    border-bottom: 1px solid #e0e0e0;
                    text-align: left;
                    background: #fff;
                    overflow: hidden;
                    text-overflow: ellipsis;
                    white-space: nowrap;
                    position: relative;
                    max-width: 0;
                }
                .cell-text {
                    display: inline-block;
                    max-width: 100%;
                    overflow: hidden;
                    text-overflow: ellipsis;
                    white-space: nowrap;
                    vertical-align: middle;
                }
                .monitor-table input,
                .monitor-table button {
                    min-width: 0;
                    max-width: 100%;
                    overflow: hidden;
                    text-overflow: ellipsis;
                    white-space: nowrap;
                }
                .monitor-table th {
                    background: #f5f5f5;
                    position: sticky;
                    top: 0;
                    z-index: 2;
                    position: relative;
                }
                /* 竖线：表头和内容区 */
                .monitor-table td:not(:last-child)::after {
                    content: '';
                    position: absolute;
                    right: 0;
                    top: 20%;
                    width: 1px;
                    height: 60%;
                    background: #e0e0e0;
                    z-index: 1;
                }
                .monitor-table th.th-resize-active::after {
                    background: #1890ff;
                }

                .divider {
                    height: 12px;
                    background: transparent;
                    cursor: row-resize;
                    width: 100%;
                    position: relative;
                    z-index: 2;
                    transition: background 0.2s;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                }
                .divider-bar {
                    width: 60px;
                    height: 5px;
                    background: #c0c4cc;
                    border-radius: 3px;
                    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
                    transition: background 0.2s, box-shadow 0.2s;
                }
                .divider:hover .divider-bar,
                .divider.active .divider-bar {
                    background: #1890ff;
                    box-shadow: 0 2px 8px rgba(24,144,255,0.15);
                }

                .chart-section {
                    background: #fff;
                    border-radius: 0 0 8px 8px;
                    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
                    padding: 12px;
                    flex: 1;
                    display: flex;
                    flex-direction: column;
                    min-height: 120px;
                    min-width: 0;
                    overflow: hidden;
                }
                .chart-title {
                    font-size: 15px;
                    font-weight: bold;
                    margin-bottom: 8px;
                }
                .chart-container {
                    flex: 1;
                    min-height: 120px;
                    position: relative;
                }
                #monitor-chart {
                    width: 100% !important;
                    height: 100% !important;
                    display: block;
                }

                .action-btn {
                    margin: 0 2px;
                    padding: 3px 8px;
                    border: none;
                    border-radius: 4px;
                    background: #f0f0f0;
                    color: #333;
                    font-size: 13px;
                    cursor: pointer;
                    transition: background 0.2s;
                }
                .action-btn:hover {
                    background: #e6f7ff;
                }
                .chart-btn.drawing {
                    background: #1890ff;
                    color: #fff;
                }

                .th-resize {
                    position: absolute;
                    right: 0;
                    top: 0;
                    width: 12px;
                    height: 100%;
                    cursor: col-resize;
                    z-index: 10;
                    user-select: none;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                }
                .th-resize::after {
                    content: '';
                    position: absolute;
                    right: 0;
                    top: 20%;
                    width: 1px;
                    height: 60%;
                    background: #e0e0e0;
                    border-radius: 2px;
                    transition: background 0.2s;
                }
                .th-resize:hover::after,
                .th-resize.active::after {
                    background: #1890ff;
                }
                .monitor-btn.monitoring {
                    background: #ff4d4f;
                    color: #fff;
                }
                .action-btn:disabled {
                    opacity: 0.5;
                    cursor: not-allowed;
                }
            </style>
            <div class="toolbar">
                <div class="toolbar-left">
                    <button class="global-monitor-btn" id="globalMonitorBtn">开始监控</button>
                </div>
                <div class="toolbar-right">
                    <div class="monitor-status">
                        <div class="status-indicator" id="statusIndicator"></div>
                        <span id="statusText">未监控</span>
                    </div>
                </div>
            </div>
            <div class="monitor-container">
                <div class="tree-container">
                    <div class="search-box">
                        <input type="text" 
                               class="search-input" 
                               placeholder="搜索接口..." 
                               value="${this.searchText}">
                    </div>
                    <div class="tree-view">
                        ${Object.entries(groupedInterfaces).map(([groupName, items]) => `
                            <div class="tree-group">
                                <div class="group-header" onclick="this.parentElement.querySelector('.group-content').classList.toggle('collapsed')">
                                    <span class="group-icon">▼</span>
                                    ${groupName}
                                </div>
                                <div class="group-content">
                                    ${items.map(item => `
                                        <div class="interface-item" data-interfacename="${item.InterfaceName}" data-modelstructname="${item.ModelStructName}">
                                            ${item.InterfaceName}
                                        </div>
                                    `).join('')}
                                </div>
                            </div>
                        `).join('')}
                    </div>
                </div>
                <div class="content-area">
                    <div class="table-section">
                        <div class="table-header-fixed">
                            <table class="monitor-table" style="${tableWidthStyle}">
                                <colgroup>
                                    <col style="width:${this.colWidths[0]}px">
                                    <col style="width:${this.colWidths[1]}px">
                                    <col style="width:${this.colWidths[2]}px">
                                    <col style="width:${this.colWidths[3]}px">
                                    <col style="width:${this.colWidths[4]}px">
                                </colgroup>
                                <thead>
                                    <tr>
                                        <th>接口名称<div class="th-resize" data-col="0"></div></th>
                                        <th>结构体名<div class="th-resize" data-col="1"></div></th>
                                        <th>数据<div class="th-resize" data-col="2"></div></th>
                                        <th>注入值<div class="th-resize" data-col="3"></div></th>
                                        <th>操作<div class="th-resize" data-col="4"></div></th>
                                    </tr>
                                </thead>
                            </table>
                        </div>
                        <div class="table-body-scroll">
                            <table class="monitor-table" style="${tableWidthStyle}">
                                <colgroup>
                                    <col style="width:${this.colWidths[0]}px">
                                    <col style="width:${this.colWidths[1]}px">
                                    <col style="width:${this.colWidths[2]}px">
                                    <col style="width:${this.colWidths[3]}px">
                                    <col style="width:${this.colWidths[4]}px">
                                </colgroup>
                                <tbody id="monitor-table-body">
                                    <!-- 表格内容 -->
                                </tbody>
                            </table>
                        </div>
                    </div>
                    <div class="divider"><div class="divider-bar"></div></div>
                    <div class="chart-section">
                        <div class="chart-title">数据监控图表</div>
                        <div class="chart-container">
                            <canvas id="monitor-chart"></canvas>
                        </div>
                    </div>
                </div>
            </div>
        `;

        // 搜索框事件
        const searchInput = this.shadowRoot.querySelector('.search-input');
        if (searchInput) {
            searchInput.addEventListener('input', (e) => this.handleSearch(e));
        }

        // 树节点双击事件
        this.shadowRoot.querySelectorAll('.interface-item').forEach(itemEl => {
            itemEl.ondblclick = (e) => {
                const name = itemEl.getAttribute('data-interfacename');
                const struct = itemEl.getAttribute('data-modelstructname');
                this.handleTreeItemDblClick({ InterfaceName: name, ModelStructName: struct });
            };
        });

        // 渲染表格内容
        this.renderTable();

        // 初始化图表
        this.initChart();

        // 初始绘图
        this.updateChart();

        // 分隔线拖动事件
        const divider = this.shadowRoot.querySelector('.divider');
        if (divider) {
            divider.onmousedown = (e) => {
                this.isResizing = true;
                this.startY = e.clientY;
                this.startTableHeight = this.tableHeight;
                divider.classList.add('active');
                document.body.style.cursor = 'row-resize';
                document.body.style.userSelect = 'none';
            };
        }

        // 列宽拖动事件
        this.shadowRoot.querySelectorAll('.th-resize').forEach(handle => {
            handle.onmousedown = (e) => {
                e.preventDefault();
                this.dragColIndex = parseInt(handle.getAttribute('data-col'));
                this.dragStartX = e.clientX;
                this.dragStartWidth = this.colWidths[this.dragColIndex];
                document.body.style.cursor = 'col-resize';
                document.body.style.userSelect = 'none';
                handle.classList.add('active');
                // 高亮竖线
                const th = handle.parentElement;
                if (th) th.classList.add('th-resize-active');
            };
            handle.onmouseup = () => {
                handle.classList.remove('active');
                const th = handle.parentElement;
                if (th) th.classList.remove('th-resize-active');
            };
        });
        window.onmousemove = (e) => {
            if (this.dragColIndex !== null) {
                const delta = e.clientX - this.dragStartX;
                let newWidth = this.dragStartWidth + delta;
                if (newWidth < 60) newWidth = 60;
                this.colWidths[this.dragColIndex] = newWidth;
                this.render();
            }
        };
        window.onmouseup = () => {
            if (this.dragColIndex !== null) {
                // 移除所有th-resize的active
                this.shadowRoot.querySelectorAll('.th-resize').forEach(h => h.classList.remove('active'));
                // 移除所有th的高亮
                this.shadowRoot.querySelectorAll('.monitor-table th').forEach(th => th.classList.remove('th-resize-active'));
                this.dragColIndex = null;
                document.body.style.cursor = '';
                document.body.style.userSelect = '';
            }
        };

        // 绑定全局监控按钮事件
        const globalMonitorBtn = this.shadowRoot.getElementById('globalMonitorBtn');
        const statusIndicator = this.shadowRoot.getElementById('statusIndicator');
        const statusText = this.shadowRoot.getElementById('statusText');

        globalMonitorBtn.addEventListener('click', async () => {
            try {
                if (!globalMonitorBtn.classList.contains('monitoring')) {
                    // 开始监控
                    const ddsInitialized = await this.initializeDDSMonitor();
                    if (!ddsInitialized) {
                        throw new Error('DDS监控初始化失败');
                    }

                    // 更新所有行的监控状态
                    this.tableData.forEach(row => {
                        row.isMonitoring = true;
                    });

                    // 启动数据更新定时器
                    this.startDataUpdateTimer();

                    // 更新状态
                    globalMonitorBtn.textContent = '停止监控';
                    globalMonitorBtn.classList.add('monitoring');
                    statusIndicator.classList.add('active');
                    statusText.textContent = '监控中';
                    this.renderTable();
                } else {
                    // 停止监控
                    // 停止数据更新定时器
                    await this.stopDataUpdateTimer();

                    // 更新所有行的监控状态
                    this.tableData.forEach(row => {
                        row.isMonitoring = false;
                        row.monitorData = ''; // 清空监控数据
                    });

                    // 更新状态
                    globalMonitorBtn.textContent = '开始监控';
                    globalMonitorBtn.classList.remove('monitoring');
                    statusIndicator.classList.remove('active');
                    statusText.textContent = '未监控';
                    this.renderTable();
                }
            } catch (error) {
                statusIndicator.classList.add('error');
                statusText.textContent = '监控错误';
                alert(error.message);
            }
        });
    }

    disconnectedCallback() {
        // 组件销毁时清理定时器
        this.stopDataUpdateTimer();
    }
}

customElements.define('data-monitor', DataMonitor);