import { readFile, writeFile } from "node:fs/promises";
import { unstable_rerenderRoute } from "waku/router/server";

export const getMessage = async () => {
  const data = await readFile("./message.txt", "utf8");
  return data;
};

export const greet = async (formData: FormData) => {
  "use server";
  // simulate a slow server response
  await new Promise((resolve) => setTimeout(resolve, 1000));
  const currentData = await getMessage();
  await writeFile(
    "./message.txt",
    currentData + "\n" + formData.get("name") + " from server!",
  );
  unstable_rerenderRoute("/");
};

export const increment = async (count: number) => {
  "use server";
  return count + 1;
};