libphonenumber-js/es6/isPossibleNumber.js

A simpler (and smaller) rewrite of Google Android's popular libphonenumber library

import { sort_out_arguments, check_number_length_for_type } from './getNumberType';

/**
 * Checks if a given phone number is possible.
 * Which means it only checks phone number length
 * and doesn't test any regular expressions.
 *
 * Examples:
 *
 * ```js
 * isPossibleNumber('+78005553535', metadata)
 * isPossibleNumber('8005553535', 'RU', metadata)
 * isPossibleNumber('88005553535', 'RU', metadata)
 * isPossibleNumber({ phone: '8005553535', country: 'RU' }, metadata)
 * ```
 */
export default function isPossibleNumber(arg_1, arg_2, arg_3, arg_4) {
	var _sort_out_arguments = sort_out_arguments(arg_1, arg_2, arg_3, arg_4),
	    input = _sort_out_arguments.input,
	    options = _sort_out_arguments.options,
	    metadata = _sort_out_arguments.metadata;

	if (options.v2) {
		if (!input.countryCallingCode) {
			throw new Error('Invalid phone number object passed');
		}
		metadata.chooseCountryByCountryCallingCode(input.countryCallingCode);
	} else {
		if (!input.phone) {
			return false;
		}
		if (input.country) {
			if (!metadata.hasCountry(input.country)) {
				throw new Error('Unknown country: ' + input.country);
			}
			metadata.country(input.country);
		} else {
			if (!input.countryCallingCode) {
				throw new Error('Invalid phone number object passed');
			}
			metadata.chooseCountryByCountryCallingCode(input.countryCallingCode);
		}
	}

	if (!metadata.possibleLengths()) {
		throw new Error('Metadata too old');
	}

	return is_possible_number(input.phone || input.nationalNumber, undefined, metadata);
}

export function is_possible_number(national_number, is_international, metadata) {
	switch (check_number_length_for_type(national_number, undefined, metadata)) {
		case 'IS_POSSIBLE':
			return true;
		// case 'IS_POSSIBLE_LOCAL_ONLY':
		// 	return !is_international
		default:
			return false;
	}
}
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