// File System APIs. Some custom APIs, but mostly a re-export a mix of built-in
// Node.js sync+promise fs methods. For convenince.
export {
  createReadStream,
  createWriteStream,
  existsSync,
  open,
  readdir,
  readdirSync,
  readFile,
  readFileSync,
  rm,
  rmSync,
  stat,
  statSync,
  writeFile,
  writeFileSync,
  type FileHandle,
};

export function mkdir(dir: string) {
  return nodeMkdir(dir, { recursive: true });
}

export function mkdirSync(dir: string) {
  return nodeMkdirSync(dir, { recursive: true });
}

export type WriteFileAsyncOptions = Parameters<typeof writeFile>[2];

export async function writeMkdir(
  file: string,
  contents: Buffer | string,
  options?: WriteFileAsyncOptions,
) {
  await mkdir(path.dirname(file));
  return writeFile(file, contents, options);
}

export function writeMkdirSync(file: string, contents: Buffer | string) {
  mkdirSync(path.dirname(file));
  return writeFileSync(file, contents);
}

export function readDirRecOptionalSync(dir: string) {
  try {
    return readdirSync(dir, { recursive: true, encoding: "utf8" });
  } catch (err: any) {
    if (err.code === "ENOENT") return [];
    throw err;
  }
}

export async function readJson<T>(file: string) {
  return JSON.parse(await readFile(file, "utf-8")) as T;
}

export function readJsonSync<T>(file: string) {
  return JSON.parse(readFileSync(file, "utf-8")) as T;
}

export async function removeEmptyDirectories(dir: string, removeRoot = false) {
  try {
    const entries = await readdir(dir, { withFileTypes: true });
    let len = entries.length;
    for (const entry of entries) {
      if (entry.isDirectory()) {
        const subDirPath = path.join(dir, entry.name);
        if (await removeEmptyDirectories(subDirPath, true)) len -= 1;
      }
    }
    if (len === 0) {
      if (removeRoot) {
        await rmdir(dir);
      }
      return true;
    }
  } catch (error: any) {
    if (error.code === "ENOENT") {
      // Directory doesn't exist, ignore
      return;
    }
    throw error;
  }
  return false;
}

import * as path from "node:path";
import {
  createReadStream,
  createWriteStream,
  existsSync,
  mkdirSync as nodeMkdirSync,
  readdirSync,
  readFileSync,
  rmSync,
  statSync,
  writeFileSync,
} from "node:fs";
import {
  mkdir as nodeMkdir,
  open,
  readdir,
  readFile,
  rm,
  rmdir,
  stat,
  writeFile,
  type FileHandle,
} from "node:fs/promises";
export { Stats } from "node:fs";