export const codeDebugTool = {
    name: "code_debug",
    description: "分析代码错误，返回结构化的调试信息：错误分类、常见原因、排查步骤和修复模式。",
    inputSchema: {
        type: "object",
        properties: {
            code: {
                type: "string",
                description: "有问题的代码",
            },
            error_message: {
                type: "string",
                description: "错误信息或堆栈跟踪",
            },
            language: {
                type: "string",
                description: "编程语言",
            },
            expected_behavior: {
                type: "string",
                description: "期望的正确行为（可选）",
            },
        },
        required: ["code", "error_message", "language"],
    },
};
const errorPatterns = [
    {
        pattern: /TypeError.*(?:undefined|null|is not a function|Cannot read prop)/i,
        category: "类型错误 (TypeError)",
        commonCauses: [
            "访问了 undefined/null 的属性",
            "函数调用目标不是函数",
            "异步操作返回值未正确 await",
            "解构赋值时对象为空",
        ],
        fixStrategies: [
            "使用可选链 ?. 和空值合并 ??",
            "添加前置空值检查",
            "确认异步操作是否正确 await",
            "检查 import 路径和导出方式是否匹配",
        ],
    },
    {
        pattern: /ReferenceError.*is not defined/i,
        category: "引用错误 (ReferenceError)",
        commonCauses: [
            "变量/函数未声明就使用",
            "拼写错误",
            "作用域问题（块级作用域、闭包）",
            "缺少 import 语句",
        ],
        fixStrategies: [
            "检查变量名拼写",
            "确认 import/require 语句",
            "检查变量声明的作用域",
        ],
    },
    {
        pattern: /SyntaxError/i,
        category: "语法错误 (SyntaxError)",
        commonCauses: [
            "括号/引号不匹配",
            "缺少分号或逗号",
            "关键字拼写错误",
            "ESM/CJS 混用",
        ],
        fixStrategies: [
            "检查报错行及前几行的括号/引号匹配",
            "确认模块系统一致性（import vs require）",
            "使用格式化工具自动修复",
        ],
    },
    {
        pattern: /ECONNREFUSED|ETIMEDOUT|ENOTFOUND|fetch failed|network/i,
        category: "网络错误",
        commonCauses: [
            "目标服务未启动",
            "URL/端口配置错误",
            "DNS 解析失败",
            "防火墙/代理阻断",
            "SSL 证书问题",
        ],
        fixStrategies: [
            "确认目标服务运行状态和端口",
            "检查 URL 配置（协议、域名、端口）",
            "添加重试机制和超时控制",
            "检查网络连通性",
        ],
    },
    {
        pattern: /ENOENT|no such file|Module not found|Cannot find module/i,
        category: "文件/模块未找到",
        commonCauses: [
            "文件路径错误",
            "依赖未安装（缺少 npm install）",
            "相对路径 vs 绝对路径搞混",
            "文件扩展名不匹配",
        ],
        fixStrategies: [
            "检查文件路径和大小写",
            "运行 npm install 安装依赖",
            "检查 tsconfig/webpack 的路径别名配置",
            "确认文件扩展名（.js/.ts/.mjs）",
        ],
    },
    {
        pattern: /Permission denied|EACCES|403|401|Unauthorized/i,
        category: "权限错误",
        commonCauses: [
            "文件权限不足",
            "API 认证失败（Token 过期/错误）",
            "CORS 跨域限制",
        ],
        fixStrategies: [
            "检查文件/目录权限（chmod）",
            "检查 API Key / Token 是否有效",
            "配置正确的 CORS 头",
        ],
    },
    {
        pattern: /out of memory|heap|stack overflow|Maximum call stack/i,
        category: "内存/栈溢出",
        commonCauses: [
            "无限递归",
            "处理超大数据集未分页",
            "内存泄漏（未清理的引用）",
        ],
        fixStrategies: [
            "检查递归终止条件",
            "对大数据使用流式处理或分页",
            "使用 --max-old-space-size 调整堆内存",
            "排查事件监听器和定时器泄漏",
        ],
    },
];
export async function executeCodeDebug(args) {
    const { code, error_message, language, expected_behavior } = args;
    // 匹配错误模式
    const matched = errorPatterns.filter((ep) => ep.pattern.test(error_message));
    const categories = matched.length > 0 ? matched : [{
            category: "未分类错误",
            commonCauses: ["请仔细阅读完整错误信息和堆栈"],
            fixStrategies: ["根据错误信息定位问题代码行", "添加日志逐步排查"],
        }];
    // 从堆栈中提取行号
    const lineRefs = [];
    const lineRegex = /(?:at\s+.+?|File\s+.+?):(\d+)(?::(\d+))?/g;
    let match;
    while ((match = lineRegex.exec(error_message)) !== null) {
        lineRefs.push(`行 ${match[1]}${match[2] ? `:${match[2]}` : ""}`);
    }
    const output = [
        `# 调试分析报告`,
        ``,
        `**语言**: ${language}`,
        ``,
        `## 错误信息`,
        "```",
        error_message,
        "```",
        ``,
    ];
    if (lineRefs.length > 0) {
        output.push(`## 堆栈中的关键位置`, ...lineRefs.map((l) => `- ${l}`), ``);
    }
    for (const cat of categories) {
        output.push(`## 错误类型: ${cat.category}`, ``, `### 常见原因`, ...cat.commonCauses.map((c) => `- ${c}`), ``, `### 修复策略`, ...cat.fixStrategies.map((s) => `- ${s}`), ``);
    }
    if (expected_behavior) {
        output.push(`## 期望行为`, expected_behavior, ``);
    }
    output.push(`## 问题代码`, "```" + language, code, "```", ``, `## 排查步骤`, `1. 根据以上错误分类和常见原因，定位问题代码行`, `2. 在可疑位置添加日志输出，验证变量值`, `3. 根据修复策略实施修改`, `4. 编写测试用例确认修复有效`);
    return output.join("\n");
}
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