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import { getCreditCardType } from 'calypso/lib/checkout';
/**
* Formats a credit card card number
* @param {string} cardNumber unformatted field value
* @returns {string} formatted value
*/
export function formatCreditCard( cardNumber ) {
if ( getCreditCardType( cardNumber ) === 'amex' ) {
return formatAmexCreditCard( cardNumber );
}
const digits = cardNumber.replace( /[^0-9]/g, '' ).slice( 0, 19 );
const formattedNumber = `${ digits.slice( 0, 4 ) } ${ digits.slice( 4, 8 ) } ${ digits.slice(
8,
12
) } ${ digits.slice( 12 ) }`;
return formattedNumber.trim();
}
/**
* Formats an American Express card number
* @param {string} cardNumber unformatted field value
* @returns {string} formatted value
*/
export function formatAmexCreditCard( cardNumber ) {
const digits = cardNumber.replace( /[^0-9]/g, '' ).slice( 0, 15 );
const formattedNumber = `${ digits.slice( 0, 4 ) } ${ digits.slice( 4, 10 ) } ${ digits.slice(
10,
15
) }`;
return formattedNumber.trim();
}
const fieldMasks = {};
const unmask = ( value ) => value;
fieldMasks[ 'expiration-date' ] = {
mask: function ( previousValue, nextValue ) {
// If the user is deleting from the value then don't modify it
if ( previousValue && previousValue.length > nextValue.length ) {
return nextValue;
}
// If the user is adding a slash then don't modify it
if (
previousValue &&
previousValue.length === 2 &&
nextValue.length === 3 &&
nextValue[ 2 ] === '/'
) {
return nextValue;
}
// Remove anything except digits and slashes
nextValue = nextValue.replace( /[^\d]/g, '' );
if ( nextValue.length <= 2 ) {
return nextValue;
}
return nextValue.substring( 0, 2 ) + '/' + nextValue.substring( 2, 4 );
},
unmask,
};
fieldMasks.number = {
mask: function ( previousValue, nextValue ) {
return formatCreditCard( nextValue );
},
unmask: function ( value ) {
return value.replace( / /g, '' );
},
};
fieldMasks.cvv = {
mask: function ( previousValue, nextValue ) {
return nextValue.replace( /[^\d]/g, '' ).substring( 0, 4 );
},
unmask,
};
fieldMasks.nik = {
mask: function ( previousValue, nextValue ) {
const digitsOnly = nextValue.replace( /[^0-9]/g, '' );
return digitsOnly;
},
unmask,
};
// `document` is an EBANX field. Currently used for Brazilian CPF numbers
// See isValidCPF()/isValidCNPJ() / ebanx.js
fieldMasks.document = {
mask: function ( previousValue, nextValue ) {
let string = nextValue;
const digits = nextValue.replace( /[^0-9]/g, '' );
if ( digits.length > 11 ) {
// CNPJ
string =
digits.slice( 0, 2 ) +
'.' +
digits.slice( 2, 5 ) +
'.' +
digits.slice( 5, 8 ) +
'/' +
digits.slice( 8, 12 ) +
'-' +
digits.slice( 12, 14 );
} else {
// CPF
string =
digits.slice( 0, 3 ) +
'.' +
digits.slice( 3, 6 ) +
'.' +
digits.slice( 6, 9 ) +
'-' +
digits.slice( 9, 11 );
}
return string.replace( /^[\s.-]+|[\s.-]+$/g, '' );
},
unmask,
};
/**
* Formats a field value
* @param {string} fieldName name of field corresponding to a child open of `fieldMasks`
* @param {string} previousValue the current value of the field before change
* @param {string} nextValue the new, incoming value of the field on change
* @returns {string} formatted value
*/
export function maskField( fieldName, previousValue, nextValue ) {
const fieldMask = fieldMasks[ fieldName ];
if ( ! fieldMask ) {
return nextValue;
}
return fieldMask.mask( previousValue, nextValue );
}
/**
* Reverses masking formats of a field value
* @param {string} fieldName name of field corresponding to a child open of `fieldMasks`
* @param {string} previousValue the current value of the field before change
* @param {string} nextValue the new, incoming value of the field on change
* @returns {string} deformatted value
*/
export function unmaskField( fieldName, previousValue, nextValue ) {
const fieldMask = fieldMasks[ fieldName ];
if ( ! fieldMask ) {
return nextValue;
}
return fieldMask.unmask( fieldMask.mask( previousValue, nextValue ) );
}
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