stdnum/lib/cjs/lv/pvn.js

Standard Number Validation

"use strict";
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    if (k2 === undefined) k2 = k;
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var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
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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, ' -', 'LV');
}
const impl = {
    name: 'Latvian VAT Number',
    localName: 'Pievienotās Vērtības Nodokļa',
    abbreviation: 'PVN',
    compact(input) {
        const [value, err] = clean(input);
        if (err) {
            throw err;
        }
        return value;
    },
    format(input) {
        const [value] = clean(input);
        if ('0123'.includes(value[0])) {
            return util_1.strings.splitAt(value, 6).join('-');
        }
        return util_1.strings.splitAt(value, 4, 8).join(' ');
    },
    validate(input) {
        const [value, error] = clean(input);
        if (error) {
            return { isValid: false, error };
        }
        if (value.length !== 11) {
            return { isValid: false, error: new exceptions.InvalidLength() };
        }
        if (!util_1.strings.isdigits(value)) {
            return { isValid: false, error: new exceptions.InvalidFormat() };
        }
        const isIndividual = '0123'.includes(value[0]);
        if (isIndividual) {
            const [dd, mm, yy, century] = util_1.strings.splitAt(value, 2, 4, 6, 7);
            if (!(0, util_1.isValidDate)(`${18 + parseInt(century, 10)}${yy}`, mm, dd, true)) {
                return { isValid: false, error: new exceptions.InvalidComponent() };
            }
            const [front, check] = util_1.strings.splitAt(value, -1);
            const sum = 1 +
                (0, checksum_1.weightedSum)(front, {
                    weights: [10, 5, 8, 4, 2, 1, 6, 3, 7, 9],
                    modulus: 11,
                });
            if (String((sum % 11) % 10) !== check) {
                return { isValid: false, error: new exceptions.InvalidChecksum() };
            }
        }
        else {
            const sum = (0, checksum_1.weightedSum)(value, {
                weights: [9, 1, 4, 8, 3, 10, 2, 5, 7, 6, 1],
                modulus: 11,
            });
            if (sum !== 3) {
                return { isValid: false, error: new exceptions.InvalidChecksum() };
            }
        }
        return {
            isValid: true,
            compact: value,
            isIndividual,
            isCompany: !isIndividual,
        };
    },
};
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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