stdnum/src/mc/tva.ts

Standard Number Validation

/**
 * n° TVA (taxe sur la valeur ajoutée, Monacan VAT number).
 *
 * For VAT purposes Monaco is treated as territory of France. The number is
 * also validated the same as the French TVA, except that it is not based on
 * a French SIREN.
 *
 * Source
 *
 * ENTITY
 */

import * as exceptions from '../exceptions';
import { strings } from '../util';
import { Validator, ValidateReturn } from '../types';
import { validate as frValidate } from '../fr/tva';

function clean(input: string): ReturnType<typeof strings.cleanUnicode> {
  return strings.cleanUnicode(input, ' ', 'FR');
}

const impl: Validator = {
  name: 'Monacan VAT Number',
  localName: "Numéro d'Identification à la Taxe sur la Valeur Ajoutée",
  abbreviation: 'n° TVA',
  compact(input: string): string {
    const [value, err] = clean(input);

    if (err) {
      throw err;
    }

    return value;
  },

  format(input: string): string {
    const [value] = clean(input);

    return value;
  },

  validate(input: string): ValidateReturn {
    const [value, error] = clean(input);

    if (error) {
      return { isValid: false, error };
    }

    const r = frValidate(value);
    if (!r.isValid) {
      return r;
    }
    if (value.substr(2, 3) !== '000') {
      return { isValid: false, error: new exceptions.InvalidComponent() };
    }

    return {
      isValid: true,
      compact: value,
      isIndividual: false,
      isCompany: true,
    };
  },
};

export const { name, localName, abbreviation, validate, format, compact } =
  impl;