import { NextRequest, NextResponse } from "next/server";
import { exec } from "child_process";
import { promisify } from "util";
import { BLOG_ROOT } from "@/lib/config";

const execAsync = promisify(exec);

export async function POST(request: NextRequest) {
  try {
    const body = await request.json();
    const { title, slug } = body;

    if (!title) {
      return NextResponse.json({ error: "Title is required" }, { status: 400 });
    }

    const commitMsg = `发布: ${title}`;

    // git add, commit, push from the blog root
    const commands = [
      `cd "${BLOG_ROOT}" && git add -A`,
      `cd "${BLOG_ROOT}" && git commit -m "${commitMsg.replace(/"/g, '\\"')}"`,
      `cd "${BLOG_ROOT}" && git push`,
    ];

    let output = "";
    for (const cmd of commands) {
      try {
        const { stdout, stderr } = await execAsync(cmd);
        output += stdout + (stderr || "");
      } catch (err: unknown) {
        const msg = err instanceof Error ? err.message : String(err);
        // git commit may fail if nothing to commit — that's ok
        if (msg.includes("nothing to commit") || msg.includes("nothing added")) {
          continue;
        }
        // git push failure is real
        throw new Error(`Git command failed: ${msg}`);
      }
    }

    return NextResponse.json({ success: true, output: output.slice(0, 500) });
  } catch (error: unknown) {
    return NextResponse.json(
      { error: error instanceof Error ? error.message : "Deploy failed" },
      { status: 500 }
    );
  }
}