class RunSimulation extends HTMLElement {
    constructor() {
        super();
        this.attachShadow({ mode: 'open' });
        this.scenarioFiles = [];
        this.currentScenario = null;
        this.modelGroups = [];
        this.services = [];
        this.currentSimulationId = null;
        this.eventSource = null;
        this.reconnectAttempts = 0;
        this.maxReconnectAttempts = 3;
    }

    // 添加reactivate方法，用于从缓存中恢复时检查仿真状态
    async reactivate() {
        // 确保先加载场景文件列表
        await this.fetchScenarioFiles();
        
        // 如果之前已经选择了配置文件，恢复配置文件下拉框的选中状态
        if (this.currentScenario) {
            const scenarioSelect = this.shadowRoot.querySelector('#scenario-select');
            if (scenarioSelect) {
                // 检查所选配置文件是否在列表中
                const fileExists = Array.from(scenarioSelect.options).some(opt => opt.value === this.currentScenario);
                
                if (fileExists) {
                    scenarioSelect.value = this.currentScenario;
                    
                    // 恢复模型和服务列表显示
                    this.updateModelAndServiceLists();
                } else {
                    console.warn('之前选择的配置文件不再可用:', this.currentScenario);
                    this.currentScenario = null;
                }
            }
        }
        
        // 检查是否有XNEngine进程在运行
        try {
            const response = await fetch('/api/check-xnengine');
            const data = await response.json();
            
            if (data.running) {
                this.showMessage('检测到正在运行的仿真，正在重新连接...');
                
                // 更新UI以反映运行状态
                const runButton = this.shadowRoot.querySelector('#run-button');
                if (runButton) {
                    runButton.disabled = true;
                    runButton.textContent = '运行中...';
                }
                
                // 显示终止按钮
                const stopButton = this.shadowRoot.querySelector('#stop-button');
                if (stopButton) {
                    stopButton.style.display = 'block';
                }
                
                // 使用进程ID作为仿真ID重新连接
                this.currentSimulationId = data.pid.toString();
                this.connectToEventSource(this.currentSimulationId);
                
                // 清空并初始化输出框
                const outputContent = this.shadowRoot.querySelector('#output-content');
                outputContent.innerHTML = '重新连接到运行中的仿真...\n';
            } else {
                // 没有运行的XNEngine进程，重置UI
                this.resetUIAfterCompletion();
            }
        } catch (error) {
            console.error('检查XNEngine进程失败:', error);
            this.showError('检查仿真状态失败: ' + error.message);
            this.resetUIAfterCompletion();
        }
    }
    
    // 检查仿真状态
    async checkSimulationStatus(simulationId) {
        try {
            const response = await fetch(`/api/simulation-status/${simulationId}`);
            const data = await response.json();
            
            if (data.running) {
                // 仿真仍在运行，重新连接到事件源
                this.showMessage('重新连接到运行中的仿真...');
                
                // 更新UI以反映运行状态
                const runButton = this.shadowRoot.querySelector('#run-button');
                if (runButton) {
                    runButton.disabled = true;
                    runButton.textContent = '运行中...';
                }
                
                // 显示终止按钮
                const stopButton = this.shadowRoot.querySelector('#stop-button');
                if (stopButton) {
                    stopButton.style.display = 'block';
                }
                
                // 重新连接到事件源
                this.connectToEventSource(simulationId);
            } else {
                // 仿真已经停止，重置UI
                this.showMessage('仿真已结束');
                this.resetUIAfterCompletion();
            }
        } catch (error) {
            console.error('检查仿真状态失败:', error);
            // 假设仿真已停止
            this.resetUIAfterCompletion();
        }
    }

    connectedCallback() {
        // 先加载场景文件列表
        this.fetchScenarioFiles();
        // 然后渲染UI
        this.render();
        
        // 最后检查是否有XNEngine进程在运行
        this.checkAndConnectToExistingSimulation();
    }

    async fetchScenarioFiles() {
        try {
            const response = await fetch('/api/scenario-files');
            if (!response.ok) {
                throw new Error('无法获取场景文件');
            }
            this.scenarioFiles = await response.json();
            this.updateScenarioDropdown();
        } catch (error) {
            console.error('获取场景文件失败:', error);
            this.showError('获取场景文件失败: ' + error.message);
        }
    }

    updateScenarioDropdown() {
        const dropdown = this.shadowRoot.querySelector('#scenario-select');
        if (!dropdown) return;

        // 清空现有选项
        dropdown.innerHTML = '';
        
        // 添加提示选项
        const defaultOption = document.createElement('option');
        defaultOption.value = '';
        defaultOption.textContent = '-- 选择配置文件 --';
        defaultOption.disabled = true;
        defaultOption.selected = true;
        dropdown.appendChild(defaultOption);
        
        // 添加场景文件选项
        this.scenarioFiles.forEach(file => {
            const option = document.createElement('option');
            option.value = file.path;
            option.textContent = file.name;
            dropdown.appendChild(option);
        });
    }

    async onScenarioSelected(event) {
        const selectedScenarioPath = event.target.value;
        if (!selectedScenarioPath) {
            return;
        }
        
        try {
            this.showMessage('加载配置文件内容...');
            // 使用file-content API获取XML内容
            const response = await fetch(`/api/file-content?path=${encodeURIComponent(selectedScenarioPath)}`);
            
            if (!response.ok) {
                throw new Error('无法获取配置文件内容');
            }
            
            const xmlContent = await response.text();
            this.parseScenarioXML(xmlContent);
            
            this.currentScenario = selectedScenarioPath;
            this.updateModelAndServiceLists();
            this.showMessage('配置文件加载完成');
        } catch (error) {
            console.error('加载配置文件失败:', error);
            this.showError('加载配置文件失败: ' + error.message);
        }
    }
    
    parseScenarioXML(xmlContent) {
        try {
            const parser = new DOMParser();
            const xmlDoc = parser.parseFromString(xmlContent, "text/xml");
            
            // 解析模型组和模型
            this.modelGroups = [];
            const modelGroupElements = xmlDoc.querySelectorAll('ModelGroup');
            modelGroupElements.forEach(groupElem => {
                const groupName = groupElem.getAttribute('Name');
                const models = [];
                
                groupElem.querySelectorAll('Model').forEach(modelElem => {
                    models.push({
                        name: modelElem.getAttribute('Name'),
                        className: modelElem.getAttribute('ClassName')
                    });
                });
                
                this.modelGroups.push({
                    name: groupName,
                    models: models
                });
            });
            
            // 解析服务
            this.services = [];
            const serviceElements = xmlDoc.querySelectorAll('ServicesList > Service');
            serviceElements.forEach(serviceElem => {
                this.services.push({
                    name: serviceElem.getAttribute('Name'),
                    className: serviceElem.getAttribute('ClassName')
                });
            });
        } catch (error) {
            console.error('解析XML失败:', error);
            throw new Error('解析XML失败: ' + error.message);
        }
    }
    
    updateModelAndServiceLists() {
        // 更新模型列表
        const modelListContainer = this.shadowRoot.querySelector('#model-list');
        modelListContainer.innerHTML = '';
        
        this.modelGroups.forEach(group => {
            const groupItem = document.createElement('div');
            groupItem.className = 'list-group';
            
            const groupHeader = document.createElement('div');
            groupHeader.className = 'list-group-header';
            groupHeader.textContent = group.name;
            groupItem.appendChild(groupHeader);
            
            const modelsList = document.createElement('div');
            modelsList.className = 'list-items';
            
            group.models.forEach(model => {
                const modelItem = document.createElement('div');
                modelItem.className = 'list-item';
                modelItem.textContent = model.name;
                modelsList.appendChild(modelItem);
            });
            
            groupItem.appendChild(modelsList);
            modelListContainer.appendChild(groupItem);
        });
        
        // 更新服务列表
        const serviceListContainer = this.shadowRoot.querySelector('#service-list');
        serviceListContainer.innerHTML = '';
        
        this.services.forEach(service => {
            const serviceItem = document.createElement('div');
            serviceItem.className = 'list-item';
            serviceItem.textContent = service.name;
            serviceListContainer.appendChild(serviceItem);
        });
    }

    // ANSI终端颜色转换为HTML
    convertAnsiToHtml(text) {
        if (!text) return '';
        
        // 映射ANSI颜色代码到CSS类名
        const ansiToHtmlClass = {
            // 前景色 (30-37)
            30: 'ansi-black',
            31: 'ansi-red',
            32: 'ansi-green',
            33: 'ansi-yellow',
            34: 'ansi-blue',
            35: 'ansi-magenta',
            36: 'ansi-cyan',
            37: 'ansi-white',
            
            // 明亮前景色 (90-97)
            90: 'ansi-bright-black',
            91: 'ansi-bright-red',
            92: 'ansi-bright-green',
            93: 'ansi-bright-yellow',
            94: 'ansi-bright-blue',
            95: 'ansi-bright-magenta',
            96: 'ansi-bright-cyan',
            97: 'ansi-bright-white',
            
            // 背景色 (40-47)
            40: 'ansi-bg-black',
            41: 'ansi-bg-red',
            42: 'ansi-bg-green',
            43: 'ansi-bg-yellow',
            44: 'ansi-bg-blue',
            45: 'ansi-bg-magenta',
            46: 'ansi-bg-cyan',
            47: 'ansi-bg-white',
            
            // 文字样式
            1: 'ansi-bold',
            3: 'ansi-italic',
            4: 'ansi-underline'
        };
        
        // 替换ANSI转义序列
        const parts = [];
        let currentSpan = null;
        let currentClasses = [];
        
        // 先分割ANSI序列和文本
        const regex = /\x1b\[([\d;]*)m/g;
        let lastIndex = 0;
        let match;
        
        while ((match = regex.exec(text)) !== null) {
            // 添加匹配前的文本
            if (match.index > lastIndex) {
                parts.push({
                    text: text.substring(lastIndex, match.index),
                    classes: [...currentClasses]
                });
            }
            
            // 处理ANSI代码
            const codes = match[1].split(';').map(Number);
            
            // 重置所有样式
            if (codes.includes(0) || codes.length === 0) {
                currentClasses = [];
            } else {
                // 添加样式
                for (const code of codes) {
                    if (ansiToHtmlClass[code]) {
                        currentClasses.push(ansiToHtmlClass[code]);
                    }
                }
            }
            
            lastIndex = regex.lastIndex;
        }
        
        // 添加最后一段文本
        if (lastIndex < text.length) {
            parts.push({
                text: text.substring(lastIndex),
                classes: [...currentClasses]
            });
        }
        
        // 生成HTML
        let html = '';
        for (const part of parts) {
            if (part.text) {
                if (part.classes.length > 0) {
                    html += `<span class="${part.classes.join(' ')}">${this.escapeHtml(part.text)}</span>`;
                } else {
                    html += this.escapeHtml(part.text);
                }
            }
        }
        
        return html;
    }
    
    // 转义HTML特殊字符
    escapeHtml(text) {
        return text
            .replace(/&/g, '&amp;')
            .replace(/</g, '&lt;')
            .replace(/>/g, '&gt;')
            .replace(/"/g, '&quot;')
            .replace(/'/g, '&#039;');
    }

    async runTest() {
        const selectedScenario = this.shadowRoot.querySelector('#scenario-select').value;
        if (!selectedScenario) {
            this.showError('请先选择配置文件');
            return;
        }
        
        try {
            this.showMessage('准备运行仿真...');
            const runButton = this.shadowRoot.querySelector('#run-button');
            runButton.disabled = true;
            runButton.textContent = '运行中...';
            
            // 显示终止按钮
            const stopButton = this.shadowRoot.querySelector('#stop-button');
            stopButton.style.display = 'block';
            
            // 清空并初始化输出框
            const outputContent = this.shadowRoot.querySelector('#output-content');
            outputContent.innerHTML = '开始执行仿真...\n';
            
            // 关闭之前的EventSource连接
            if (this.eventSource) {
                this.eventSource.close();
                this.eventSource = null;
            }
            
            // 保存当前仿真信息
            this.currentSimulationId = Date.now().toString();
            
            // 准备启动参数
            const simulationArgs = ['-f', selectedScenario];
            
            // 调用后端API执行仿真
            const response = await fetch('/api/run-simulation', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({
                    id: this.currentSimulationId,
                    args: simulationArgs,
                    timeout: 120000 // 2分钟超时
                })
            });
            
            if (!response.ok) {
                const errorData = await response.json();
                outputContent.innerHTML += `\n错误: ${errorData.message || '仿真执行失败'}\n`;
                if (errorData.output) outputContent.innerHTML += this.convertAnsiToHtml(errorData.output);
                if (errorData.errorOutput) outputContent.innerHTML += this.convertAnsiToHtml(errorData.errorOutput);
                throw new Error(errorData.message || '仿真执行失败');
            }
            
            const responseData = await response.json();
            
            // 获取仿真ID
            const simulationId = responseData.simulationId || this.currentSimulationId;
            this.currentSimulationId = simulationId;
            
            // 如果是连接到现有进程，显示相应消息
            if (responseData.isExisting) {
                this.showMessage('已连接到运行中的仿真');
                outputContent.innerHTML = '已连接到运行中的仿真...\n';
                
                // 如果有配置文件路径，自动选择
                if (responseData.scenarioFile) {
                    const scenarioSelect = this.shadowRoot.querySelector('#scenario-select');
                    if (scenarioSelect) {
                        // 检查配置文件是否在列表中
                        const fileExists = Array.from(scenarioSelect.options).some(opt => opt.value === responseData.scenarioFile);
                        if (fileExists) {
                            scenarioSelect.value = responseData.scenarioFile;
                            this.currentScenario = responseData.scenarioFile;
                            // 更新模型和服务列表
                            this.updateModelAndServiceLists();
                        }
                    }
                }
            } else {
                this.showSuccess(`仿真已启动`);
            }
            
            // 设置SSE连接获取实时输出
            this.connectToEventSource(simulationId);
            
        } catch (error) {
            console.error('执行仿真失败:', error);
            this.showError('执行仿真失败: ' + error.message);
            
            // 显示错误详情
            const outputContent = this.shadowRoot.querySelector('#output-content');
            outputContent.innerHTML += `\n\n执行错误: ${error.message}`;
            
            // 隐藏终止按钮并重置运行按钮
            const stopButton = this.shadowRoot.querySelector('#stop-button');
            stopButton.style.display = 'none';
            
            const runButton = this.shadowRoot.querySelector('#run-button');
            runButton.disabled = false;
            runButton.textContent = '运行仿真';
            
            // 清除当前仿真ID和关闭SSE连接
            this.closeEventSource();
            this.currentSimulationId = null;
        }
    }
    
    // 连接到SSE事件源获取实时输出
    connectToEventSource(simulationId) {
        // 关闭之前的连接
        this.closeEventSource();
        
        // 创建新的SSE连接
        const url = `/api/simulation-output/${simulationId}`;
        this.eventSource = new EventSource(url);
        
        // 标准输出和错误输出
        this.eventSource.addEventListener('output', (event) => {
            try {
                const data = JSON.parse(event.data);
                const outputContent = this.shadowRoot.querySelector('#output-content');
                
                // 添加新输出并应用ANSI颜色
                if (data.data) {
                    const html = this.convertAnsiToHtml(data.data);
                    outputContent.innerHTML += html;
                    
                    // 自动滚动到底部
                    outputContent.scrollTop = outputContent.scrollHeight;
                }
            } catch (error) {
                console.error('处理输出事件失败:', error);
            }
        });
        
        // 仿真状态
        this.eventSource.addEventListener('status', (event) => {
            try {
                const data = JSON.parse(event.data);
                
                if (data.running === false) {
                    // 仿真已经不存在或已结束
                    this.showMessage(data.message || '仿真不存在或已结束');
                    
                    // 如果是进程不存在，尝试重新连接
                    if (data.message === '仿真不存在或已结束' && this.reconnectAttempts < this.maxReconnectAttempts) {
                        this.reconnectAttempts++;
                        this.showMessage(`尝试重新连接 (${this.reconnectAttempts}/${this.maxReconnectAttempts})...`);
                        setTimeout(() => this.checkAndConnectToExistingSimulation(), 1000);
                        return;
                    }
                    
                    // 重置UI
                    this.resetUIAfterCompletion();
                } else if (data.running === true) {
                    // 更新状态为已连接
                    this.showSuccess('已连接到运行中的仿真');
                }
            } catch (error) {
                console.error('处理状态事件失败:', error);
            }
        });
        
        // 仿真完成
        this.eventSource.addEventListener('completed', (event) => {
            try {
                const data = JSON.parse(event.data);
                
                if (data.success) {
                    this.showSuccess('仿真执行成功');
                } else {
                    this.showError(`仿真执行失败: ${data.message}`);
                }
                
                // 重置UI
                this.resetUIAfterCompletion();
            } catch (error) {
                console.error('处理完成事件失败:', error);
            }
        });
        
        // 仿真错误
        this.eventSource.addEventListener('error', (event) => {
            try {
                const data = JSON.parse(event.data);
                this.showError(`仿真错误: ${data.message}`);
                
                // 重置UI
                this.resetUIAfterCompletion();
            } catch (error) {
                console.error('处理错误事件失败:', error);
            }
        });
        
        // 仿真终止
        this.eventSource.addEventListener('terminated', (event) => {
            try {
                const data = JSON.parse(event.data);
                this.showMessage(`仿真已终止: ${data.message}`);
                
                // 在输出框中添加终止信息
                const outputContent = this.shadowRoot.querySelector('#output-content');
                outputContent.innerHTML += `\n\n仿真已终止：${data.message}`;
                
                // 重置UI
                this.resetUIAfterCompletion();
            } catch (error) {
                console.error('处理终止事件失败:', error);
            }
        });
        
        // 仿真超时
        this.eventSource.addEventListener('timeout', (event) => {
            try {
                const data = JSON.parse(event.data);
                this.showError(`仿真超时: ${data.message}`);
                
                // 在输出框中添加超时信息
                const outputContent = this.shadowRoot.querySelector('#output-content');
                outputContent.innerHTML += `\n\n仿真超时：${data.message}`;
                
                // 重置UI
                this.resetUIAfterCompletion();
            } catch (error) {
                console.error('处理超时事件失败:', error);
            }
        });
        
        // 修改连接错误处理
        this.eventSource.onerror = (error) => {
            console.error('SSE连接错误:', error);
            
            // 检查连接状态
            if (this.eventSource && this.eventSource.readyState === 2) { // CLOSED
                // 如果还有重连次数，尝试重新连接
                if (this.reconnectAttempts < this.maxReconnectAttempts) {
                    this.reconnectAttempts++;
                    this.showMessage(`连接断开，尝试重新连接 (${this.reconnectAttempts}/${this.maxReconnectAttempts})...`);
                    setTimeout(() => this.checkAndConnectToExistingSimulation(), 1000);
                } else {
                    this.showError('实时输出连接已断开');
                    this.resetUIAfterCompletion();
                }
            }
        };
    }
    
    // 关闭SSE连接
    closeEventSource() {
        if (this.eventSource) {
            // 通知后端清理tail进程
            if (this.currentSimulationId) {
                fetch(`/api/cleanup-simulation/${this.currentSimulationId}`, {
                    method: 'POST'
                }).catch(error => {
                    console.error('清理仿真资源失败:', error);
                });
            }
            
            this.eventSource.close();
            this.eventSource = null;
        }
    }
    
    // 在仿真完成后重置UI
    resetUIAfterCompletion() {
        // 隐藏终止按钮
        const stopButton = this.shadowRoot.querySelector('#stop-button');
        if (stopButton) {
            stopButton.style.display = 'none';
        }
        
        // 重置运行按钮
        const runButton = this.shadowRoot.querySelector('#run-button');
        if (runButton) {
            runButton.disabled = false;
            runButton.textContent = '运行仿真';
        }
        
        // 关闭SSE连接
        this.closeEventSource();
        
        // 清除当前仿真ID和重连计数
        this.currentSimulationId = null;
        this.reconnectAttempts = 0;
    }
    
    async stopSimulation() {
        if (!this.currentSimulationId) {
            this.showMessage('没有正在运行的仿真');
            return;
        }
        
        try {
            this.showMessage('正在终止仿真...');
            
            const response = await fetch('/api/stop-simulation', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify({
                    id: this.currentSimulationId
                })
            });
            
            if (response.ok) {
                const result = await response.json();
                this.showSuccess(`${result.message || '仿真已终止'}`);
                
                // 终止信息会通过SSE推送到UI
                // 此处不需要额外操作
            } else {
                const errorData = await response.json();
                this.showError(`终止仿真失败: ${errorData.message || '未知错误'}`);
                
                // 可能是SSE已断开，手动重置UI
                this.resetUIAfterCompletion();
            }
        } catch (error) {
            console.error('终止仿真失败:', error);
            this.showError('终止仿真失败: ' + error.message);
            
            // 手动重置UI
            this.resetUIAfterCompletion();
        }
    }

    showError(message) {
        const messageElement = this.shadowRoot.querySelector('#message');
        messageElement.textContent = message;
        messageElement.style.color = 'red';
    }

    showMessage(message) {
        const messageElement = this.shadowRoot.querySelector('#message');
        messageElement.textContent = message;
        messageElement.style.color = 'blue';
    }
    
    showSuccess(message) {
        const messageElement = this.shadowRoot.querySelector('#message');
        messageElement.textContent = message;
        messageElement.style.color = 'green';
    }

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

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

                .config-selector {
                    display: flex;
                    align-items: center;
                    margin-bottom: 20px;
                    gap: 10px;
                }
                
                .selector-label {
                    min-width: 120px;
                    font-weight: bold;
                    color: #333;
                }

                select {
                    flex: 1;
                    padding: 8px 12px;
                    border-radius: 4px;
                    border: 1px solid #ccc;
                }

                button {
                    padding: 8px 16px;
                    background-color: #1976d2;
                    color: white;
                    border: none;
                    border-radius: 4px;
                    cursor: pointer;
                    font-weight: bold;
                    min-width: 100px;
                }

                button:hover {
                    background-color: #1565c0;
                }
                
                button:disabled {
                    background-color: #cccccc;
                    cursor: not-allowed;
                }
                
                #stop-button {
                    background-color: #d32f2f;
                    display: none;
                    margin-left: 10px;
                }
                
                #stop-button:hover {
                    background-color: #b71c1c;
                }

                #message {
                    margin: 10px 0;
                    padding: 10px;
                    border-radius: 4px;
                }
                
                .content-container {
                    display: flex;
                    flex: 1;
                    gap: 20px;
                    overflow: hidden;
                }
                
                .lists-container {
                    width: 250px;
                    display: flex;
                    flex-direction: column;
                    gap: 15px;
                    overflow: auto;
                }
                
                .list-section {
                    border: 1px solid #e0e0e0;
                    border-radius: 4px;
                    display: flex;
                    flex-direction: column;
                    overflow: hidden;
                }
                
                .list-header {
                    background-color: #f5f5f5;
                    padding: 10px;
                    font-weight: bold;
                    border-bottom: 1px solid #e0e0e0;
                }
                
                .list-content {
                    overflow: auto;
                    padding: 10px;
                    max-height: 200px;
                }
                
                .list-group {
                    margin-bottom: 15px;
                }
                
                .list-group-header {
                    font-weight: bold;
                    color: #333;
                    margin-bottom: 5px;
                    padding-bottom: 3px;
                    border-bottom: 1px solid #eee;
                }
                
                .list-items {
                    padding-left: 15px;
                }
                
                .list-item {
                    padding: 5px 0;
                }
                
                .output-container {
                    flex: 1;
                    display: flex;
                    flex-direction: column;
                    border: 1px solid #e0e0e0;
                    border-radius: 4px;
                    overflow: hidden;
                }
                
                .output-header {
                    background-color: #f5f5f5;
                    padding: 10px;
                    font-weight: bold;
                    border-bottom: 1px solid #e0e0e0;
                }
                
                .output-content {
                    flex: 1;
                    background-color: #2b2b2b;
                    color: #e0e0e0;
                    font-family: monospace;
                    padding: 10px;
                    overflow: auto;
                    white-space: pre-wrap;
                    line-height: 1.4;
                }
                
                /* 终端颜色支持 */
                .output-content .ansi-black { color: #000000; }
                .output-content .ansi-red { color: #ff0000; }
                .output-content .ansi-green { color: #00ff00; }
                .output-content .ansi-yellow { color: #ffff00; }
                .output-content .ansi-blue { color: #0000ff; }
                .output-content .ansi-magenta { color: #ff00ff; }
                .output-content .ansi-cyan { color: #00ffff; }
                .output-content .ansi-white { color: #ffffff; }
                
                .output-content .ansi-bright-black { color: #808080; }
                .output-content .ansi-bright-red { color: #ff5555; }
                .output-content .ansi-bright-green { color: #55ff55; }
                .output-content .ansi-bright-yellow { color: #ffff55; }
                .output-content .ansi-bright-blue { color: #5555ff; }
                .output-content .ansi-bright-magenta { color: #ff55ff; }
                .output-content .ansi-bright-cyan { color: #55ffff; }
                .output-content .ansi-bright-white { color: #ffffff; }
                
                .output-content .ansi-bg-black { background-color: #000000; }
                .output-content .ansi-bg-red { background-color: #ff0000; }
                .output-content .ansi-bg-green { background-color: #00ff00; }
                .output-content .ansi-bg-yellow { background-color: #ffff00; }
                .output-content .ansi-bg-blue { background-color: #0000ff; }
                .output-content .ansi-bg-magenta { background-color: #ff00ff; }
                .output-content .ansi-bg-cyan { background-color: #00ffff; }
                .output-content .ansi-bg-white { background-color: #ffffff; }
                
                .output-content .ansi-bold { font-weight: bold; }
                .output-content .ansi-italic { font-style: italic; }
                .output-content .ansi-underline { text-decoration: underline; }
                
                .buttons-container {
                    display: flex;
                }
            </style>
            <div class="test-container">
                <div class="config-selector">
                    <div class="selector-label">选择运行环境配置:</div>
                    <select id="scenario-select">
                        <option value="" disabled selected>-- 加载配置文件中... --</option>
                    </select>
                    <div class="buttons-container">
                        <button id="run-button">运行仿真</button>
                        <button id="stop-button">终止仿真</button>
                    </div>
                </div>
                <div id="message"></div>
                <div class="content-container">
                    <div class="lists-container">
                        <div class="list-section">
                            <div class="list-header">模型列表</div>
                            <div id="model-list" class="list-content"></div>
                        </div>
                        <div class="list-section">
                            <div class="list-header">服务列表</div>
                            <div id="service-list" class="list-content"></div>
                        </div>
                    </div>
                    <div class="output-container">
                        <div class="output-header">运行输出</div>
                        <div id="output-content" class="output-content">等待仿真运行...</div>
                    </div>
                </div>
            </div>
        `;

        // 添加事件监听器
        const runButton = this.shadowRoot.querySelector('#run-button');
        runButton.addEventListener('click', () => this.runTest());
        
        const stopButton = this.shadowRoot.querySelector('#stop-button');
        stopButton.addEventListener('click', () => this.stopSimulation());
        
        const scenarioSelect = this.shadowRoot.querySelector('#scenario-select');
        scenarioSelect.addEventListener('change', (event) => this.onScenarioSelected(event));
    }

    // 添加新方法：检查并连接到已有的仿真
    async checkAndConnectToExistingSimulation() {
        try {
            const response = await fetch('/api/check-xnengine');
            const data = await response.json();
            
            if (data.running) {
                this.showMessage('检测到正在运行的仿真，正在重新连接...');
                
                // 更新UI以反映运行状态
                const runButton = this.shadowRoot.querySelector('#run-button');
                if (runButton) {
                    runButton.disabled = true;
                    runButton.textContent = '运行中...';
                }
                
                // 显示终止按钮
                const stopButton = this.shadowRoot.querySelector('#stop-button');
                if (stopButton) {
                    stopButton.style.display = 'block';
                }
                
                // 使用进程ID作为仿真ID重新连接
                this.currentSimulationId = data.pid.toString();
                
                // 确保场景文件列表已加载
                if (this.scenarioFiles.length === 0) {
                    await this.fetchScenarioFiles();
                }
                
                // 如果有配置文件路径，自动选择并加载内容
                if (data.scenarioFile) {
                    const scenarioSelect = this.shadowRoot.querySelector('#scenario-select');
                    if (scenarioSelect) {
                        // 检查配置文件是否在列表中
                        const fileExists = Array.from(scenarioSelect.options).some(opt => opt.value === data.scenarioFile);
                        if (fileExists) {
                            // 先设置当前场景
                            this.currentScenario = data.scenarioFile;
                            
                            // 加载配置文件内容
                            try {
                                this.showMessage('加载配置文件内容...');
                                const response = await fetch(`/api/file-content?path=${encodeURIComponent(data.scenarioFile)}`);
                                
                                if (!response.ok) {
                                    throw new Error('无法获取配置文件内容');
                                }
                                
                                const xmlContent = await response.text();
                                this.parseScenarioXML(xmlContent);
                                
                                // 更新下拉框选择
                                scenarioSelect.value = data.scenarioFile;
                                
                                // 更新模型和服务列表
                                this.updateModelAndServiceLists();
                                this.showMessage('配置文件加载完成');
                            } catch (error) {
                                console.error('加载配置文件失败:', error);
                                this.showError('加载配置文件失败: ' + error.message);
                            }
                        } else {
                            console.warn('配置文件不在列表中:', data.scenarioFile);
                            this.showError('配置文件不在列表中: ' + data.scenarioFile);
                        }
                    }
                }
                
                // 清空并初始化输出框
                const outputContent = this.shadowRoot.querySelector('#output-content');
                outputContent.innerHTML = '重新连接到运行中的仿真...\n';
                
                // 连接到SSE获取输出
                this.connectToEventSource(this.currentSimulationId);
                
                // 更新状态为已连接
                this.showSuccess('已连接到运行中的仿真');
                
                // 重置重连尝试次数
                this.reconnectAttempts = 0;
            } else {
                // 如果没有运行中的仿真，重置UI
                this.resetUIAfterCompletion();
            }
        } catch (error) {
            console.error('检查XNEngine进程失败:', error);
            this.showError('检查仿真状态失败: ' + error.message);
            this.resetUIAfterCompletion();
        }
    }

    // 添加组件销毁时的清理方法
    disconnectedCallback() {
        // 清理SSE连接和相关资源
        this.closeEventSource();
        
        // 重置所有状态
        this.currentSimulationId = null;
        this.reconnectAttempts = 0;
        this.scenarioFiles = [];
        this.currentScenario = null;
        this.modelGroups = [];
        this.services = [];
    }
}

customElements.define('run-simulation', RunSimulation);