/**
 * NRIC No. (Malaysian National Registration Identity Card Number).
 *
 * The NRIC No. is the unique identifier for issued to Malaysian citizens and
 * permanent residents.
 *
 * The number consist of 12 digits in three sections. The first 6 digits
 * represent the birth date, followed by two digits represeting the birth
 * place and finally four digits. The gender of a person can be derived from
 * the last digit: odd numbers for males and even numbers for females.
 *
 * PERSON
 */

import * as exceptions from '../exceptions';
import { isValidDateCompactYYMMDD, strings } from '../util';
import { Validator, ValidateReturn } from '../types';

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

const UNASSIGNED = [
  '00',
  '17',
  '18',
  '19',
  '20',
  '69',
  '73',
  '80',
  '81',
  '94',
  '95',
  '96',
  '97',
];

const impl: Validator = {
  name: 'Malaysian National Registration Identity Card Number',
  localName: 'National Registration Identity Card Number',
  abbreviation: 'NRIC No.',
  compact(input: string): string {
    const [value, err] = clean(input);

    if (err) {
      throw err;
    }

    return value;
  },

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

    return strings.splitAt(value, 6, 8).join('-');
  },

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

    if (error) {
      return { isValid: false, error };
    }
    if (value.length !== 12) {
      return { isValid: false, error: new exceptions.InvalidLength() };
    }
    if (!strings.isdigits(value)) {
      return { isValid: false, error: new exceptions.InvalidFormat() };
    }

    const [bdate, place] = strings.splitAt(value, 6, 8);

    if (!isValidDateCompactYYMMDD(bdate, true)) {
      return { isValid: false, error: new exceptions.InvalidComponent() };
    }
    if (UNASSIGNED.includes(place)) {
      return { isValid: false, error: new exceptions.InvalidComponent() };
    }

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

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