import { StringNumber } from "../types/main.js";

export function getObjectValue(obj: unknown, key: string) {
  if (!(obj instanceof Object)) return;
  const i = Object.keys(obj).indexOf(key);
  return Object.values(obj)[i];
}

export function Void() {
  return;
}

export function unique<T>(val: T[]) {
  return [...new Set([...val])];
}

export function prettyJson(val?: unknown) {
  try {
    return JSON.stringify(val, null, 2);
  } catch (e) {
    return "";
  }
}

export class EnumReader<T extends string, V extends StringNumber> {
  private readonly $keys: T[];
  private readonly $values: V[];
  constructor(list: { [key in T]: V }) {
    this.$keys = Object.keys(list) as T[];
    this.$values = Object.values(list);
  }

  keys() {
    return [...this.$keys];
  }

  values() {
    return [...this.$values];
  }

  value<P extends T>(key: P) {
    const index = this.$keys.indexOf(key);
    return this.$values[index];
  }

  key<P extends V>(value: P) {
    const index = this.$values.indexOf(value);
    return this.$keys[index];
  }
}