@qompa/cci-utils/dist/index.js

Utilities to convert between CCI and account numbers

var BankCode;
(function (BankCode) {
    BankCode["BCP"] = "002";
    BankCode["BBVA"] = "011";
})(BankCode || (BankCode = {}));
export var BCPAccountTypes;
(function (BCPAccountTypes) {
    BCPAccountTypes["Savings"] = "1";
    BCPAccountTypes["Checking"] = "2";
    BCPAccountTypes["CTS"] = "3";
})(BCPAccountTypes || (BCPAccountTypes = {}));
export function convertBCPAccountNumberToCCI(accountNumber, accountType) {
    if (!/^\d{14}$/.test(accountNumber))
        return null;
    const accountSegment1 = accountNumber.slice(0, 3);
    const accountSegment2 = accountNumber.slice(3).padStart(11, "0");
    const cciSegment1 = BankCode.BCP + accountSegment1;
    const cciSegment2 = accountType + accountSegment2;
    function calculateCheckDigit(group) {
        const sum = group.split("").reduce((acc, char, index) => {
            const num = Number(char);
            const product = num * (index % 2 === 0 ? 1 : 2);
            return (acc +
                product
                    .toString()
                    .split("")
                    .reduce((a, d) => a + Number(d), 0));
        }, 0);
        return (10 - (sum % 10)) % 10;
    }
    const checkDigit1 = calculateCheckDigit(cciSegment1);
    const checkDigit2 = calculateCheckDigit(cciSegment2);
    return `${cciSegment1}${cciSegment2}${checkDigit1}${checkDigit2}`;
}
function calculateFirstBBVACheckDigit(bank, branch) {
    const input = bank + branch;
    const weights = [0, 1, 2, 1, 0, 2, 1, 2];
    let sum = 0;
    for (let i = 0; i < input.length; i++) {
        const digit = Number.parseInt(input.charAt(i), 10);
        let product = digit * weights[i];
        if (product >= 10) {
            product = Math.floor(product / 10) + (product % 10);
        }
        sum += product;
    }
    return ((10 - (sum % 10)) % 10).toString();
}
function calculateSecondBBVACheckDigit(control, account) {
    const input = control + account;
    const weights = [1, 2, 1, 2, 1, 2, 1, 2, 1, 2];
    let sum = 0;
    for (let i = 0; i < input.length; i++) {
        const digit = Number.parseInt(input.charAt(i), 10);
        let product = digit * weights[i];
        if (product >= 10) {
            product = Math.floor(product / 10) + (product % 10);
        }
        sum += product;
    }
    return ((10 - (sum % 10)) % 10).toString();
}
export function convertBBVAAccountNumberToCCI(accountNumber) {
    if (!/^\d{18}$/.test(accountNumber) && !/^\d{20}$/.test(accountNumber)) {
        return null;
    }
    const bank = accountNumber.slice(0, 4);
    const branch = accountNumber.slice(4, 8);
    let control;
    let account;
    if (accountNumber.length === 18) {
        control = accountNumber.slice(8, 10);
        account = accountNumber.slice(10);
    }
    else {
        const accountData = accountNumber.slice(10);
        control = accountData.slice(0, 2);
        account = accountData.slice(2);
    }
    const firstCheck = calculateFirstBBVACheckDigit(bank, branch);
    const secondCheck = calculateSecondBBVACheckDigit(control, account);
    return `${bank.substring(1)}${branch.substring(1)}00${control}${account}${firstCheck}${secondCheck}`;
}
const BANKS_CCI = [
    {
        name: "BCP",
        id: BankCode.BCP,
    },
    {
        name: "INTERBANK",
        id: "003",
    },
    {
        name: "SCOTIABANK",
        id: "009",
    },
    {
        name: "BBVA",
        id: BankCode.BBVA,
    },
    {
        name: "BANCO DE LA NACION",
        id: "018",
    },
    {
        name: "BANBIF",
        id: "038",
    },
    {
        name: "MI BANCO",
        id: "049",
    },
];
const getBankFromCCI = (cci) => {
    if (!cci.match(/^[0-9]{20}$/)) {
        throw new Error("CCI must be numeric and have exactly 20 digits");
    }
    const bankIdentifier = cci.substring(0, 3);
    const bank = BANKS_CCI.find((item) => item.id === bankIdentifier);
    if (!bank)
        throw new Error("unknown bank identifier");
    return bank.name;
};
export function getCCIMetadata(cci) {
    const bank = getBankFromCCI(cci);
    switch (bank) {
        case "BCP": {
            const accountTypeDigit = cci.substring(6, 7);
            if (accountTypeDigit === "1") {
                return {
                    bank,
                    accountNumber: cci.substring(3, 6) + cci.substring(7, 18),
                    cci,
                    currency: cci.substring(15, 16) === "0" ? "PEN" : "USD",
                    type: "Ahorro",
                };
            }
            return {
                bank,
                accountNumber: cci.substring(3, 6) + cci.substring(8, 18),
                cci,
                currency: cci.substring(15, 16) === "0" ? "PEN" : "USD",
                type: "Corriente",
            };
        }
        case "INTERBANK":
            return {
                bank,
                accountNumber: cci.substring(3, 6) + cci.substring(8, 18),
                cci,
            };
        case "BBVA":
            return {
                bank,
                accountNumber: `00110${cci.substring(3, 6)}${cci.substring(8, 18)}`,
                cci,
            };
        case "SCOTIABANK":
            return {
                bank,
                accountNumber: cci.substring(3, 6) + cci.substring(11, 18),
                cci,
            };
        case "BANBIF":
            return {
                bank,
                accountNumber: `0${cci.substring(7, 18)}`,
                cci,
            };
        case "MI BANCO":
            return {
                bank,
                accountNumber: cci.substring(8, 18),
                cci,
            };
        case "BANCO DE LA NACION":
            return {
                bank,
                accountNumber: cci.substring(7, 18),
                cci,
            };
        default:
            throw new Error("unknown bank identifier");
    }
}