import { spawn } from "node:child_process";
import { mkdtemp, readFile, rm } from "node:fs/promises";
import { tmpdir } from "node:os";
import { join } from "node:path";
import { fileURLToPath } from "node:url";

const projectRoot = fileURLToPath(new URL("..", import.meta.url));
const expectedFile = fileURLToPath(
  new URL("../migrations/0001_better_auth_account_center.sql", import.meta.url),
);

function run(command, args) {
  return new Promise((resolve, reject) => {
    const child = spawn(command, args, {
      cwd: projectRoot,
      stdio: "inherit",
      shell: process.platform === "win32",
    });

    child.on("error", reject);
    child.on("exit", (code) => {
      if (code === 0) {
        resolve();
        return;
      }

      reject(new Error(`${command} ${args.join(" ")} exited with code ${code}`));
    });
  });
}

const tempDir = await mkdtemp(join(tmpdir(), "cfw-auth-better-auth-"));
const generatedFile = join(tempDir, "better-auth.sql");

try {
  await run("pnpm", [
    "exec",
    "auth",
    "generate",
    "--config",
    "src/auth.migration.ts",
    "--output",
    generatedFile,
    "-y",
  ]);

  const [expected, generated] = await Promise.all([
    readFile(expectedFile, "utf8"),
    readFile(generatedFile, "utf8"),
  ]);

  if (expected !== generated) {
    throw new Error(
      `${expectedFile} is out of date. Run pnpm db:generate and review the generated SQL.`,
    );
  }

  console.log(`${expectedFile} is up to date.`);
} finally {
  await rm(tempDir, { recursive: true, force: true });
}