import { access, readFile, writeFile } from "node:fs/promises";

const candidates = [
  "node_modules/@indiekit/store-github/index.js",
];

const MARKER = "// [patched] store-github-error-message";

const OLD_SNIPPET = `    \`Ensure the GitHub token is not expired and has the necessary permissions\`,
    \`You can check your tokens here: https://github.com/settings/tokens\`,`;

const NEW_SNIPPET = `    \`Ensure the Gitea token is not expired and has the necessary permissions\`,
    \`You can check your tokens here: https://git.wildwuchs.work/user/settings/applications\`, ${MARKER}`;

async function exists(path) {
  try {
    await access(path);
    return true;
  } catch {
    return false;
  }
}

let checked = 0;
let patched = 0;

for (const filePath of candidates) {
  if (!(await exists(filePath))) {
    continue;
  }

  checked += 1;

  const source = await readFile(filePath, "utf8");

  if (source.includes(MARKER)) {
    console.log("[postinstall] store-github error message already patched");
    continue;
  }

  if (!source.includes(OLD_SNIPPET)) {
    console.warn("[postinstall] store-github: unexpected source layout, skipping");
    continue;
  }

  const updated = source.replace(OLD_SNIPPET, NEW_SNIPPET);
  await writeFile(filePath, updated, "utf8");
  patched += 1;
}

if (checked === 0) {
  console.log("[postinstall] No store-github index.js found");
} else if (patched > 0) {
  console.log(`[postinstall] Patched store-github error message in ${patched} file(s)`);
}