import { exec } from "child_process";
import { promisify } from "util";
const execAsync = promisify(exec);
export const gitOpsTool = {
    name: "git_ops",
    description: "Git 全套操作。支持 status、diff、add、commit、push、pull、log、branch、checkout、stash、reset 等所有常用 Git 命令。自动解析输出为结构化报告。",
    inputSchema: {
        type: "object",
        properties: {
            project_path: {
                type: "string",
                description: "项目根目录（绝对路径）",
            },
            action: {
                type: "string",
                description: "Git 操作",
                enum: [
                    "status", "diff", "diff_staged", "add", "add_all", "commit",
                    "push", "pull", "log", "branch", "branch_create", "checkout",
                    "stash", "stash_pop", "reset_soft", "reset_hard", "remote", "init",
                ],
            },
            message: {
                type: "string",
                description: "commit 消息（commit 时必填）",
            },
            target: {
                type: "string",
                description: "目标参数（文件路径/分支名/commit hash 等）",
            },
            count: {
                type: "number",
                description: "log 显示条数（默认 10）",
            },
        },
        required: ["project_path", "action"],
    },
};
async function git(args, cwd) {
    try {
        const { stdout, stderr } = await execAsync(`git ${args}`, {
            cwd,
            timeout: 30000,
            maxBuffer: 1024 * 1024 * 5,
        });
        return { stdout, stderr, code: 0 };
    }
    catch (error) {
        return { stdout: error.stdout || "", stderr: error.stderr || "", code: error.code ?? 1 };
    }
}
export async function executeGitOps(args) {
    const { project_path, action, message, target, count = 10 } = args;
    let result;
    let title = "";
    switch (action) {
        case "status":
            title = "Git Status";
            result = await git("status --short --branch", project_path);
            if (result.code === 0) {
                const lines = result.stdout.trim().split("\n");
                const branch = lines[0] || "";
                const changes = lines.slice(1);
                const staged = changes.filter((l) => /^[MADRC]/.test(l));
                const unstaged = changes.filter((l) => /^.[MADRC]/.test(l));
                const untracked = changes.filter((l) => l.startsWith("??"));
                return [
                    `# ${title}`, `📂 ${project_path}`, `🌿 ${branch}`, ``,
                    `| 状态 | 数量 |`, `|------|------|`,
                    `| ✅ 已暂存 | ${staged.length} |`,
                    `| 📝 已修改 | ${unstaged.length} |`,
                    `| ❓ 未跟踪 | ${untracked.length} |`, ``,
                    changes.length > 0 ? "```\n" + result.stdout.trim() + "\n```" : "✨ 工作区干净",
                ].join("\n");
            }
            break;
        case "diff":
            title = "Git Diff (工作区)";
            result = await git(`diff ${target ? `-- "${target}"` : ""} --stat`, project_path);
            if (result.stdout.trim()) {
                const detail = await git(`diff ${target ? `-- "${target}"` : ""} --no-color`, project_path);
                return `# ${title}\n\n## 摘要\n\`\`\`\n${result.stdout.trim()}\n\`\`\`\n\n## 详细\n\`\`\`diff\n${detail.stdout.slice(0, 8000)}\n\`\`\``;
            }
            return `# ${title}\n\n✨ 无差异`;
        case "diff_staged":
            title = "Git Diff (暂存区)";
            result = await git("diff --cached --stat", project_path);
            if (result.stdout.trim()) {
                const detail = await git("diff --cached --no-color", project_path);
                return `# ${title}\n\n## 摘要\n\`\`\`\n${result.stdout.trim()}\n\`\`\`\n\n## 详细\n\`\`\`diff\n${detail.stdout.slice(0, 8000)}\n\`\`\``;
            }
            return `# ${title}\n\n✨ 暂存区无内容`;
        case "add":
            title = "Git Add";
            result = await git(`add "${target || "."}"`, project_path);
            break;
        case "add_all":
            title = "Git Add All";
            result = await git("add -A", project_path);
            break;
        case "commit":
            if (!message)
                return "❌ commit 需要提供 message 参数";
            title = "Git Commit";
            result = await git(`commit -m "${message.replace(/"/g, '\\"')}"`, project_path);
            break;
        case "push":
            title = "Git Push";
            result = await git(`push ${target || ""}`, project_path);
            break;
        case "pull":
            title = "Git Pull";
            result = await git(`pull ${target || ""}`, project_path);
            break;
        case "log":
            title = "Git Log";
            result = await git(`log --oneline --graph --decorate -n ${count}`, project_path);
            if (result.code === 0) {
                return `# ${title} (最近 ${count} 条)\n\n\`\`\`\n${result.stdout.trim()}\n\`\`\``;
            }
            break;
        case "branch":
            title = "Git Branch";
            result = await git("branch -a -v", project_path);
            break;
        case "branch_create":
            if (!target)
                return "❌ 创建分支需要提供 target（分支名）";
            title = `Git Branch Create: ${target}`;
            result = await git(`checkout -b "${target}"`, project_path);
            break;
        case "checkout":
            if (!target)
                return "❌ checkout 需要提供 target（分支名或文件）";
            title = `Git Checkout: ${target}`;
            result = await git(`checkout "${target}"`, project_path);
            break;
        case "stash":
            title = "Git Stash";
            result = await git(`stash${message ? ` push -m "${message}"` : ""}`, project_path);
            break;
        case "stash_pop":
            title = "Git Stash Pop";
            result = await git("stash pop", project_path);
            break;
        case "reset_soft":
            title = "Git Reset (soft)";
            result = await git(`reset --soft ${target || "HEAD~1"}`, project_path);
            break;
        case "reset_hard":
            title = "Git Reset (hard) ⚠️";
            result = await git(`reset --hard ${target || "HEAD"}`, project_path);
            break;
        case "remote":
            title = "Git Remote";
            result = await git("remote -v", project_path);
            break;
        case "init":
            title = "Git Init";
            result = await git("init", project_path);
            break;
        default:
            return `❌ 未知 Git 操作: ${action}`;
    }
    const output = [result.stdout, result.stderr].filter(Boolean).join("\n").trim();
    const icon = result.code === 0 ? "✅" : "❌";
    return `# ${icon} ${title}\n\n📂 ${project_path}\n\n\`\`\`\n${output || "(无输出)"}\n\`\`\``;
}
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