"use strict";
// @ts-check
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = decrypt;
const crypto_1 = require("crypto");
const buffer_1 = require("buffer");
/**
 * # Decrypt Function
 */
function decrypt({ encryptedString, encryptionKey, encryptionSalt, }) {
    if (!(encryptedString === null || encryptedString === void 0 ? void 0 : encryptedString.match(/./))) {
        console.log("Encrypted string is invalid");
        return encryptedString;
    }
    const finalEncryptionKey = encryptionKey || process.env.DSQL_ENCRYPTION_PASSWORD;
    const finalEncryptionSalt = encryptionSalt || process.env.DSQL_ENCRYPTION_SALT;
    const finalKeyLen = process.env.DSQL_ENCRYPTION_KEY_LENGTH
        ? Number(process.env.DSQL_ENCRYPTION_KEY_LENGTH)
        : 24;
    if (!(finalEncryptionKey === null || finalEncryptionKey === void 0 ? void 0 : finalEncryptionKey.match(/.{8,}/))) {
        console.log("Decrption key is invalid");
        return encryptedString;
    }
    if (!(finalEncryptionSalt === null || finalEncryptionSalt === void 0 ? void 0 : finalEncryptionSalt.match(/.{8,}/))) {
        console.log("Decrption salt is invalid");
        return encryptedString;
    }
    const algorithm = "aes-192-cbc";
    let key = (0, crypto_1.scryptSync)(finalEncryptionKey, finalEncryptionSalt, finalKeyLen);
    let iv = buffer_1.Buffer.alloc(16, 0);
    const decipher = (0, crypto_1.createDecipheriv)(algorithm, key, iv);
    try {
        let decrypted = decipher.update(encryptedString, "hex", "utf8");
        decrypted += decipher.final("utf8");
        return decrypted;
    }
    catch (error) {
        console.log("Error in decrypting =>", error.message);
        return encryptedString;
    }
}