const crypto = require('crypto');

function decode(encryptedData) {
    try {
        const algorithm = 'aes-256-cbc';
        const iv = Buffer.from(encryptedData.slice(0, 24), 'base64');
        const keyHex = 'd0ca711dc0c599de0847cb86f415cd34d602a322f0f07dc89bce9e1481f481b3';
        const derivedKey = Buffer.from(keyHex, 'hex');
        const encryptedText = encryptedData.slice(24);

        const decipher = crypto.createDecipheriv(algorithm, derivedKey, iv);
        let decrypted = decipher.update(encryptedText, 'base64', 'utf8');
        decrypted += decipher.final('utf8');

        console.log('Decrypted String:', decrypted);
        return decrypted;
    } catch (error) {
        console.error('Decryption failed:', error.message);
        return null;
    }
}

  module.exports = decode;