stdnum
Version:
Standard Number Validation
58 lines • 4.74 kB
JavaScript
import * as exceptions from '../exceptions';
import { strings, weightedSum } from '../util';
function clean(input) {
return strings.cleanUnicode(input, ' ');
}
const impl = {
name: 'Ukrainian Unified State Register of Enterprises and Organizations',
localName: 'Єдиного державного реєстру підприємств та організацій України',
abbreviation: 'ЄДРПОУ',
compact(input) {
const [value, err] = clean(input);
if (err) {
throw err;
}
return value;
},
format(input) {
const [value] = clean(input);
return value;
},
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 (!strings.isdigits(value)) {
return { isValid: false, error: new exceptions.InvalidFormat() };
}
const [front, check] = strings.splitAt(value, -1);
const weights = '345'.includes(front[0])
? [7, 1, 2, 3, 4, 5, 6]
: [1, 2, 3, 4, 5, 6, 7];
let sum = weightedSum(front, {
weights,
modulus: 11,
});
if (sum === 10) {
sum = weightedSum(front, {
weights: weights.map(v => v + 2),
modulus: 11,
});
}
if (String(sum % 10) !== check) {
return { isValid: false, error: new exceptions.InvalidChecksum() };
}
return {
isValid: true,
compact: value,
isIndividual: false,
isCompany: true,
};
},
};
export const { name, localName, abbreviation, validate, format, compact } = impl;
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