import { randomBytes } from "node:crypto";

const ALPHABET = "0123456789abcdefghijklmnopqrstuvwxyz";

/** Sortable-ish, URL-safe id: `<prefix>_<base36 time><random>`. */
export function newId(prefix: string, randomLen = 12): string {
  const t = Date.now().toString(36);
  const bytes = randomBytes(randomLen);
  let r = "";
  for (let i = 0; i < randomLen; i++) r += ALPHABET[bytes[i]! % 36];
  return `${prefix}_${t}${r}`;
}

export const ID_PREFIX = {
  source: "src",
  sensor: "sen",
  run: "run",
  snapshot: "snap",
  change: "chg",
  event: "evt",
  cluster: "clu",
  entity: "ent",
  request: "req",
  watchlist: "wl",
  alert: "alr",
} as const;

export function slugify(input: string): string {
  return input
    .normalize("NFKD")
    .replace(/[̀-ͯ]/g, "")
    .toLowerCase()
    .replace(/[^a-z0-9]+/g, "-")
    .replace(/^-+|-+$/g, "")
    .slice(0, 80);
}