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index.ts
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index.ts
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import { hasPersian } from "../isPersian";
import { digitsFaToEn } from "../digits";
import verifyCardNumber from "../verifyCardNumber";
import { acceptableKeywords, cardNumberRegex } from "./utils";
import getBankNameFromCardNumber from "../getBankNameFromCardNumber";
/**
*
* @category Bank account
*/
export interface ExtractCardNumber {
base: string;
pure: string;
index: number;
isValid?: boolean;
bankName?: string | null;
}
/**
*
* @category Bank account
*/
export interface ExtractCardNumberOptions {
/**
* Check if every card-numbers is valid or not
*
* @type boolean
*/
checkValidation?: boolean;
/**
* Detect Bank's name by extracted card-number
*
* @type boolean
*/
detectBankNumber?: boolean;
/**
* Return list of valid card-numbers
*
* @type boolean
*/
filterValidCardNumbers?: boolean;
}
/**
* Extract Iranian Bank's numbers into a string
*
* @category Bank account
* @public
* @return ExtractCardNumber[]
* @param str
* @param options
*/
function extractCardNumber(
str: string,
options: ExtractCardNumberOptions = {
checkValidation: true,
detectBankNumber: false,
filterValidCardNumbers: true,
},
): ExtractCardNumber[] {
/**
* Returns a Boolean value that indicates whether or not a pattern exists in a searched string.
*
* @type boolean
*/
if (str && cardNumberRegex.test(str)) {
/**
* returns an array containing the results of card-numbers, or null if no matches are found.
*
* @type string[]
* @constant
*/
const matches = str.match(cardNumberRegex);
let serialize = matches?.map<ExtractCardNumber>((matchedCardNumber, index) => {
let cardNumber = acceptableKeywords.test(matchedCardNumber)
? matchedCardNumber.replace(acceptableKeywords, "")
: matchedCardNumber;
/**
* If Card-Number includes Persian digits, we should convert all Persian digits to English.
*
* @type string
*/
cardNumber = hasPersian(cardNumber) ? (digitsFaToEn(cardNumber) as string) : cardNumber;
const result: ExtractCardNumber = {
index: index + 1,
base: matchedCardNumber,
pure: cardNumber,
};
if (options.checkValidation) {
result.isValid = verifyCardNumber(Number(cardNumber));
}
if (options.detectBankNumber) {
const bankName = getBankNameFromCardNumber(cardNumber);
if (bankName || bankName === null) {
result.bankName = bankName as string | null;
}
}
return result;
});
if (options.filterValidCardNumbers && options.checkValidation) {
serialize = serialize?.filter((item) => item.isValid);
}
return serialize!;
}
return [];
}
export * from "./utils";
export default extractCardNumber;