import { exec } from "child_process";
import { promisify } from "util";
import { existsSync } from "fs";
import { join } from "path";
const execAsync = promisify(exec);
export const lintCheckTool = {
    name: "lint_check",
    description: "对项目执行代码检查。自动检测项目类型并运行对应的 lint 工具（ESLint、TypeScript 编译检查、Pylint 等），返回结构化的错误列表。",
    inputSchema: {
        type: "object",
        properties: {
            project_path: {
                type: "string",
                description: "项目根目录（绝对路径）",
            },
            fix: {
                type: "boolean",
                description: "是否自动修复可修复的问题（默认 false）",
            },
            files: {
                type: "string",
                description: "指定检查的文件或 glob（可选，默认检查整个项目）",
            },
        },
        required: ["project_path"],
    },
};
async function runCommand(cmd, cwd, timeout = 30000) {
    try {
        const { stdout, stderr } = await execAsync(cmd, {
            cwd,
            timeout,
            maxBuffer: 1024 * 1024 * 5,
            shell: process.platform === "win32" ? "powershell.exe" : "/bin/bash",
        });
        return { stdout, stderr, code: 0 };
    }
    catch (error) {
        return {
            stdout: error.stdout || "",
            stderr: error.stderr || "",
            code: error.code ?? 1,
        };
    }
}
export async function executeLintCheck(args) {
    const { project_path, fix = false, files } = args;
    const results = [];
    const hasFile = (name) => existsSync(join(project_path, name));
    const hasNodeModules = hasFile("node_modules");
    // TypeScript 编译检查
    if (hasFile("tsconfig.json")) {
        const result = await runCommand("npx tsc --noEmit --pretty", project_path);
        const errorCount = (result.stdout.match(/error TS/g) || []).length;
        results.push({
            tool: "TypeScript (tsc --noEmit)",
            success: result.code === 0,
            errorCount,
            warningCount: 0,
            output: result.stdout || result.stderr || "(无输出)",
        });
    }
    // ESLint
    if (hasFile(".eslintrc.js") || hasFile(".eslintrc.json") || hasFile(".eslintrc.yml") || hasFile("eslint.config.js") || hasFile("eslint.config.mjs")) {
        const target = files || "src/";
        const fixFlag = fix ? " --fix" : "";
        const result = await runCommand(`npx eslint ${target}${fixFlag} --format stylish`, project_path);
        const errorMatch = result.stdout.match(/(\d+) errors?/);
        const warnMatch = result.stdout.match(/(\d+) warnings?/);
        results.push({
            tool: `ESLint${fix ? " (--fix)" : ""}`,
            success: result.code === 0,
            errorCount: errorMatch ? parseInt(errorMatch[1]) : 0,
            warningCount: warnMatch ? parseInt(warnMatch[1]) : 0,
            output: result.stdout || result.stderr || "✅ 无问题",
        });
    }
    // Python: pylint / flake8
    if (hasFile("requirements.txt") || hasFile("setup.py") || hasFile("pyproject.toml")) {
        const target = files || ".";
        // 优先 flake8
        const result = await runCommand(`python -m flake8 ${target} --max-line-length=120 --count`, project_path);
        if (result.code !== 127) { // 127 = command not found
            const lines = result.stdout.trim().split("\n").filter(Boolean);
            results.push({
                tool: "Flake8",
                success: result.code === 0,
                errorCount: lines.length,
                warningCount: 0,
                output: result.stdout || result.stderr || "✅ 无问题",
            });
        }
    }
    // 如果什么检查工具都没找到
    if (results.length === 0) {
        // 尝试通用的 package.json lint 脚本
        if (hasFile("package.json")) {
            const result = await runCommand("npm run lint 2>&1 || echo LINT_SCRIPT_NOT_FOUND", project_path);
            if (!result.stdout.includes("LINT_SCRIPT_NOT_FOUND") && !result.stdout.includes("Missing script")) {
                results.push({
                    tool: "npm run lint",
                    success: result.code === 0,
                    errorCount: result.code === 0 ? 0 : 1,
                    warningCount: 0,
                    output: result.stdout || result.stderr,
                });
            }
        }
    }
    if (results.length === 0) {
        return `# Lint 检查结果\n\n⚠️ 未检测到 lint 工具配置（ESLint、tsconfig、pylint 等）\n项目路径: ${project_path}\n\n建议：\n- TypeScript 项目：添加 tsconfig.json\n- JS 项目：npm init @eslint/config\n- Python 项目：pip install flake8`;
    }
    // 组装报告
    const totalErrors = results.reduce((sum, r) => sum + r.errorCount, 0);
    const totalWarnings = results.reduce((sum, r) => sum + r.warningCount, 0);
    const allPassed = results.every((r) => r.success);
    const output = [
        `# Lint 检查报告`,
        ``,
        `📂 项目: ${project_path}`,
        `${allPassed ? "✅ 全部通过" : "❌ 发现问题"} | 错误: ${totalErrors} | 警告: ${totalWarnings}`,
        ``,
    ];
    for (const r of results) {
        output.push(`## ${r.success ? "✅" : "❌"} ${r.tool}`, `错误: ${r.errorCount} | 警告: ${r.warningCount}`, "```", r.output.slice(0, 3000), // 限制输出长度
        "```", ``);
    }
    if (!allPassed && !fix) {
        output.push(`💡 提示: 可以设置 fix=true 自动修复可修复的问题`);
    }
    return output.join("\n");
}
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