// @ts-check
import { scryptSync, createDecipheriv } from "crypto";
import { Buffer } from "buffer";
import grabKeys from "../../utils/grab-keys";
/**
 * # Decrypt Function
 */
export default function decrypt({ encryptedString, encryptionKey, encryptionSalt, }) {
    var _a;
    if (!(encryptedString === null || encryptedString === void 0 ? void 0 : encryptedString.match(/./))) {
        console.log("Encrypted string is invalid");
        return encryptedString;
    }
    const { key: encrptKey, salt, keyLen, algorithm, bufferAllocSize, } = grabKeys({ encryptionKey });
    if (!(encrptKey === null || encrptKey === void 0 ? void 0 : encrptKey.match(/.{8,}/))) {
        console.log("Decrption key is invalid");
        return encryptedString;
    }
    if (!(salt === null || salt === void 0 ? void 0 : salt.match(/.{8,}/))) {
        console.log("Decrption salt is invalid");
        return encryptedString;
    }
    let key = scryptSync(encrptKey, salt, keyLen);
    let iv = Buffer.alloc(bufferAllocSize, 0);
    const decipher = 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);
        console.log("encryptedString =>", encryptedString);
        (_a = global.ERROR_CALLBACK) === null || _a === void 0 ? void 0 : _a.call(global, `Error Decrypting data`, error);
        return encryptedString;
    }
}