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feat: new cnpj alphanumeric #369

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f004fac
feat: new cnpj alphanumeric
fxamauri Jul 1, 2024
43ce4f4
chore: run lint prettier
fxamauri Jul 1, 2024
c7b1c16
feat: add options email utilities version 2
fxamauri Jul 26, 2024
29954e7
doc: add doc version 2 cnpj
fxamauri Jul 29, 2024
2416a3c
feat: adjust cnpj version option string or number
fxamauri Jul 30, 2024
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20 changes: 19 additions & 1 deletion src/utilities/cnpj/index.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,24 @@ describe('format', () => {
expect(format('46843485000186')).toBe('46.843.485/0001-86');
});

test('should format cnpj alphanumeric with mask', () => {
expect(format('')).toBe('');
expect(format('Q')).toBe('Q');
expect(format('Q0')).toBe('Q0');
expect(format('Q0S')).toBe('Q0.S');
expect(format('Q0SL')).toBe('Q0.SL');
expect(format('Q0SLF')).toBe('Q0.SLF');
expect(format('Q0SLFM')).toBe('Q0.SLF.M');
expect(format('Q0SLFMB')).toBe('Q0.SLF.MB');
expect(format('Q0SLFMBD')).toBe('Q0.SLF.MBD');
expect(format('Q0SLFMBD7')).toBe('Q0.SLF.MBD/7');
expect(format('Q0SLFMBD7V')).toBe('Q0.SLF.MBD/7V');
expect(format('Q0SLFMBD7VX')).toBe('Q0.SLF.MBD/7VX');
expect(format('Q0SLFMBD7VX4')).toBe('Q0.SLF.MBD/7VX4');
expect(format('Q0SLFMBD7VX43')).toBe('Q0.SLF.MBD/7VX4-3');
expect(format('q0SLFMBD7VX439')).toBe('Q0.SLF.MBD/7VX4-39');
});

test('should format number cnpj with mask', () => {
expect(format(4)).toBe('4');
expect(format(46)).toBe('46');
Expand Down Expand Up @@ -76,7 +94,7 @@ describe('format', () => {
});

test('should remove all non numeric characters', () => {
expect(format('46.?ABC843.485/0001-86abc')).toBe('46.843.485/0001-86');
expect(format('46.?ABC843.485/0001-86abc')).toBe('46.ABC.843/4850-00');
});
});

Expand Down
53 changes: 43 additions & 10 deletions src/utilities/cnpj/index.ts
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
import { isLastChar, onlyNumbers, generateChecksum, generateRandomNumber } from '../../helpers';
import { isLastChar } from '../../helpers';

export const LENGTH = 14;

Expand Down Expand Up @@ -27,12 +27,15 @@ export const FIRST_CHECK_DIGIT_WEIGHTS = [5, 4, 3, 2, 9, 8, 7, 6, 5, 4, 3, 2];

export const SECOND_CHECK_DIGIT_WEIGHTS = [6, ...FIRST_CHECK_DIGIT_WEIGHTS];

const VALID_CHARS_CNPJ = '0123456789ABCDFGHIJKLMNPQRSVWXYZ';

export interface FormatCnpjOptions {
pad?: boolean;
}

export function format(cnpj: string | number, options: FormatCnpjOptions = {}): string {
let digits = onlyNumbers(cnpj);
const valueCNPJUppercased = String(cnpj).toUpperCase();
let digits = onlyValidCNPJAlphanumeric(valueCNPJUppercased);

if (options.pad) {
digits = digits.padStart(LENGTH, '0');
Expand All @@ -54,20 +57,50 @@ export function format(cnpj: string | number, options: FormatCnpjOptions = {}):
}, '');
}

function charToAsciiValue(char: string): number {
return char.charCodeAt(0) - 48;
}

function onlyValidCNPJAlphanumeric(input: string): string {
return input
.split('')
.filter((char) => VALID_CHARS_CNPJ.includes(char))
.join('');
}

function generateChecksumCNPJ(base: string, weight: number[]): number {
const digits = onlyValidCNPJAlphanumeric(base);

return digits.split('').reduce((acc, char, i) => {
const value = charToAsciiValue(char);
return acc + value * weight[i];
}, 0);
}

function generateCNPJAlphanumericChars(length: number): string {
const charset = VALID_CHARS_CNPJ;
return Array(length)
.fill('')
.map(() => charset[Math.floor(Math.random() * charset.length)])
.join('');
}

export function generate(): string {
const baseCNPJ = generateRandomNumber(LENGTH - 2);
const baseCNPJ = generateCNPJAlphanumericChars(LENGTH - 2);

const firstCheckDigitMod = generateChecksum(baseCNPJ, FIRST_CHECK_DIGIT_WEIGHTS) % 11;
const firstCheckDigitMod = generateChecksumCNPJ(baseCNPJ, FIRST_CHECK_DIGIT_WEIGHTS) % 11;
const firstCheckDigit = (firstCheckDigitMod < 2 ? 0 : 11 - firstCheckDigitMod).toString();

const secondCheckDigitMod = generateChecksum(baseCNPJ + firstCheckDigit, SECOND_CHECK_DIGIT_WEIGHTS) % 11;
const secondCheckDigitMod = generateChecksumCNPJ(baseCNPJ + firstCheckDigit, SECOND_CHECK_DIGIT_WEIGHTS) % 11;
const secondCheckDigit = (secondCheckDigitMod < 2 ? 0 : 11 - secondCheckDigitMod).toString();

return `${baseCNPJ}${firstCheckDigit}${secondCheckDigit}`;
}

export function isValidFormat(cnpj: string): boolean {
return /^\d{2}\.?\d{3}\.?\d{3}\/?\d{4}-?\d{2}$/.test(cnpj);
function isValidFormat(cnpj: string): boolean {
return /^[0-9ABCDFGHIJKLMNPQRSVWXYZ]{2}\.?[0-9ABCDFGHIJKLMNPQRSVWXYZ]{3}\.?[0-9ABCDFGHIJKLMNPQRSVWXYZ]{3}\/?[0-9ABCDFGHIJKLMNPQRSVWXYZ]{4}-?\d{2}$/.test(
cnpj
);
}

export function isReservedNumber(cpf: string): boolean {
Expand All @@ -84,7 +117,7 @@ export function isValidChecksum(cnpj: string): boolean {
}

const mod =
generateChecksum(
generateChecksumCNPJ(
cnpj
.slice(0, i)
.split('')
Expand All @@ -99,7 +132,7 @@ export function isValidChecksum(cnpj: string): boolean {
export function isValid(cnpj: string): boolean {
if (!cnpj || typeof cnpj !== 'string') return false;

const numbers = onlyNumbers(cnpj);
const validValue = onlyValidCNPJAlphanumeric(cnpj);

return isValidFormat(cnpj) && !isReservedNumber(numbers) && isValidChecksum(numbers);
return isValidFormat(cnpj) && !isReservedNumber(validValue) && isValidChecksum(validValue);
}
3 changes: 2 additions & 1 deletion src/utilities/email/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,8 @@ const MAX_RECIPIENT_LENGTH = 64;
const MAX_DOMAIN_LENGTH = 253;
const MAX_EMAIL_LENGTH = MAX_RECIPIENT_LENGTH + 1 + MAX_DOMAIN_LENGTH;

const validEmailRegex = /^([!#$%&'*+\-/=?^_`{|}~]{0,1}([a-zA-Z0-9][!#$%&'*+\-/=?^_`{|}~.]{0,1})+)@(([a-zA-Z0-9][-.]{0,1})+)([.]{1}[a-zA-Z0-9]+)$/;
const validEmailRegex =
/^([!#$%&'*+\-/=?^_`{|}~]{0,1}([a-zA-Z0-9][!#$%&'*+\-/=?^_`{|}~.]{0,1})+)@(([a-zA-Z0-9][-.]{0,1})+)([.]{1}[a-zA-Z0-9]+)$/;

const stringIsBiggerThan = (len: number, ...strs: string[]): boolean =>
strs.reduce((length, s) => length + s.length, 0) > len;
Expand Down