| 1 | 'use strict';
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| 2 |
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| 3 | function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
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| 4 |
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| 5 | var onlyNumbers = _interopDefault(require('@brazilian-utils/helper-only-numbers'));
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| 6 | var generateChecksum = _interopDefault(require('@brazilian-utils/helper-generate-checksum'));
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| 7 |
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| 8 | var RESERVED_ENTRIES = ['00000000000', '11111111111', '22222222222', '33333333333', '44444444444', '55555555555', '66666666666', '77777777777', '88888888888', '99999999999'];
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| 9 | var VERIFICATION_INDEXES = [9, 10];
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| 10 |
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| 11 | function isFormatValid(taxId) {
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| 12 | return /^\d{3}\.?\d{3}\.?\d{3}-?\d{2}$/.test(taxId);
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| 13 | }
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| 14 |
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| 15 | function isReserved(taxId) {
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| 16 | return RESERVED_ENTRIES.indexOf(taxId) >= 0;
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| 17 | }
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| 18 |
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| 19 | function isChecksumValid(taxId) {
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| 20 | return VERIFICATION_INDEXES.every(function (index) {
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| 21 | var mod = generateChecksum(taxId.slice(0, index).split('').reduce(function (a, b) {
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| 22 | return a + b;
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| 23 | }, ''), index + 1) % 11;
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| 24 | return taxId[index] === String(mod < 2 ? 0 : 11 - mod);
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| 25 | });
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| 26 | }
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| 27 |
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| 28 | function isValidCpf(cpf) {
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| 29 | if (!cpf) return false;
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| 30 | var numericCPF = onlyNumbers(cpf);
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| 31 | return isFormatValid(cpf) && !isReserved(numericCPF) && isChecksumValid(numericCPF);
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| 32 | }
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| 33 |
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| 34 | exports.default = isValidCpf;
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| 35 |
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