import { resolve } from "node:path";
import { existsSync } from "node:fs";
import { rm } from "node:fs/promises";
import { spawn } from "node:child_process";
// OneDrive marks directories as Windows reparse points, which Next's Node
// cleanup may mistake for links. Use native PowerShell for this build cache.
const root = resolve("."),
  target = resolve(root, ".next");
if (target !== resolve(root, ".next") || !target.startsWith(root))
  throw new Error("Unsafe build cache target");
if (existsSync(target)) {
  if (process.platform === "win32")
    await new Promise((accept, reject) => {
      const escaped = target.replaceAll("'", "''");
      const child = spawn(
        "powershell.exe",
        [
          "-NoProfile",
          "-NonInteractive",
          "-Command",
          `Remove-Item -LiteralPath '${escaped}' -Recurse -Force -ErrorAction Stop`,
        ],
        { stdio: "inherit", windowsHide: true },
      );
      child.on("exit", (code) =>
        code === 0
          ? accept()
          : reject(
              new Error(
                "Could not clear the Next build cache. Stop the dev server first.",
              ),
            ),
      );
      child.on("error", reject);
    });
  else await rm(target, { recursive: true, force: true });
}