import { randomUUID } from "node:crypto";
import fs from "node:fs/promises";
import path from "node:path";

import { paths } from "../config/paths.js";

export async function ensureDataDirectories() {
  await fs.mkdir(paths.uploadsDir, { recursive: true });
  await fs.mkdir(paths.prismaDir, { recursive: true });
}

export async function writeUpload(buffer: Buffer, originalName: string) {
  const extension = path.extname(originalName);
  const storedName = `${Date.now()}-${randomUUID()}${extension}`;
  const relativePath = path.join("uploads", storedName);
  const absolutePath = path.join(paths.dataDir, relativePath);

  await fs.mkdir(path.dirname(absolutePath), { recursive: true });
  await fs.writeFile(absolutePath, buffer);

  return {
    storedName,
    relativePath: relativePath.replaceAll("\\", "/"),
    absolutePath,
  };
}