import { NextResponse } from "next/server";
import { exec } from "child_process";
import os from "os";

export async function POST(req: Request) {
  // Never run in production
  if (process.env.NODE_ENV !== "development") {
    return NextResponse.json(
      { message: "Not available in production" },
      { status: 404 }
    );
  }

  try {
    const { locator } = await req.json();

    if (!locator) {
      return NextResponse.json(
        { message: "Locator is required" },
        { status: 400 }
      );
    }

    const isWindows = os.platform() === "win32";
    const bin = isWindows ? "antigravity-ide.cmd" : "antigravity-ide";
    const cmd = `${bin} -r -g "${locator}"`;

    return new Promise<Response>((resolve) => {
      exec(cmd, (error) => {
        if (error) {
          // If primary IDE launcher isn't available, try fallback to code/cursor
          const fallbackBin = isWindows ? "code.cmd" : "code";
          const fallbackCmd = `${fallbackBin} -r -g "${locator}"`;

          exec(fallbackCmd, (fallbackError) => {
            if (fallbackError) {
              console.error(
                `[open-in-ide] Error opening file: ${error.message} / Fallback error: ${fallbackError.message}`
              );
              resolve(
                NextResponse.json(
                  {
                    message: "Failed to open file in IDE",
                    error: error.message,
                  },
                  { status: 500 }
                )
              );
            } else {
              resolve(NextResponse.json({ success: true, via: "code" }));
            }
          });
          return;
        }

        resolve(NextResponse.json({ success: true, via: "antigravity" }));
      });
    });
  } catch (err: unknown) {
    const message = err instanceof Error ? err.message : String(err);
    console.error("[open-in-ide] Handler error:", err);
    return NextResponse.json(
      { message: "Internal server error", error: message },
      { status: 500 }
    );
  }
}