stdnum/lib/cjs/mt/vat.js

Standard Number Validation

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.compact = exports.format = exports.validate = exports.abbreviation = exports.localName = exports.name = void 0;
const exceptions = __importStar(require("../exceptions"));
const util_1 = require("../util");
const checksum_1 = require("../util/checksum");
function clean(input) {
    return util_1.strings.cleanUnicode(input, ' -', 'MT');
}
const impl = {
    name: 'Maltese VAT Number',
    localName: 'Vat Reg. No.',
    abbreviation: 'Vat No.',
    compact(input) {
        const [value, err] = clean(input);
        if (err) {
            throw err;
        }
        return value;
    },
    format(input) {
        const [value] = clean(input);
        return util_1.strings.splitAt(value, 4).join('-');
    },
    validate(input) {
        const [value, error] = clean(input);
        if (error) {
            return { isValid: false, error };
        }
        if (value.length !== 8) {
            return { isValid: false, error: new exceptions.InvalidLength() };
        }
        if (!util_1.strings.isdigits(value)) {
            return { isValid: false, error: new exceptions.InvalidFormat() };
        }
        const sum = (0, checksum_1.weightedSum)(value, {
            weights: [3, 4, 6, 7, 8, 9, 10, 1],
            modulus: 37,
        });
        if (sum !== 0) {
            return { isValid: false, error: new exceptions.InvalidChecksum() };
        }
        return {
            isValid: true,
            compact: value,
            isIndividual: false,
            isCompany: true,
        };
    },
};
exports.name = impl.name, exports.localName = impl.localName, exports.abbreviation = impl.abbreviation, exports.validate = impl.validate, exports.format = impl.format, exports.compact = impl.compact;
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