package aes

import (
	// Standard
	"crypto/aes"
	"crypto/cipher"
	"encoding/base64"
)

// Decrypt
func (Algorithm) Decrypt(data string, key []byte) ([]byte, error) {
	// Decoded Data
	decodedData, err := base64.RawStdEncoding.DecodeString(data)
	// Handle Error
	if err != nil {
		return []byte(""), err
	}
	// Block
	block, err := aes.NewCipher(key)
	// Handle Error
	if err != nil {
		return []byte(""), err
	}
	// GCM
	gcm, err := cipher.NewGCM(block)
	// Handle Error
	if err != nil {
		return []byte(""), err
	}
	// Decrypted Data
	decryptedData, err := gcm.Open(nil, decodedData[:gcm.NonceSize()], decodedData[gcm.NonceSize():], nil)
	// Handle Error
	if err != nil {
		return []byte(""), err
	}
	// Return Decrypted Data
	return decryptedData, err
}