vcard4/src/parameters/PrefParameter.js

An RFC 6350 compliant JavaScript library for generating and parsing version 4.0 vCards. Can also generate RFC 6351 compliant XML vCards and RFC 7095 compliant jCards. TypeScript type declarations are provided.

import { BaseParameter } from "./BaseParameter.js";
import { MissingArgument, InvalidArgument } from "../errors/index.js";

export class PrefParameter extends BaseParameter {
  static param = "PREF";
  static identifier = "PrefParameter";

  #prefValue;

  get value() {
    return this.#prefValue.repr();
  }

  get valueXML() {
    return this.#prefValue.reprXML();
  }

  get valueJSON() {
    return this.#prefValue.reprJSON();
  }

  #validate(prefValue) {
    if (typeof prefValue === "undefined")
      throw new MissingArgument("Value for PrefParameter must be supplied");
    else if (prefValue.constructor.identifier !== "IntegerType")
      throw new TypeError(
        "Value for PrefParameter should be of type IntegerType"
      );
    else if (Number(prefValue.repr()) < 1 || Number(prefValue.repr()) > 100)
      throw new InvalidArgument(
        "Value for PrefParameter must be between 1 and 100"
      );
  }

  constructor(prefValue) {
    super();

    this.#validate(prefValue);
    this.#prefValue = prefValue;

    this.checkAbstractPropertiesAndMethods();
    Object.freeze(this);
  }
}

Object.freeze(PrefParameter);