#include "EncryptionManager.h"

EncryptionManager::EncryptionManager()
{
	if (sodium_init() < 0) {
		throw std::runtime_error("libsodium init failed");
	}
}

std::vector<char> EncryptionManager::encrypt(const std::vector<char>& raw)
{
	randombytes_buf(key.data(), key.size());
	randombytes_buf(nonce.data(), nonce.size());

	std::vector<char> crypt(raw.size());

    if (crypto_stream_chacha20_ietf_xor_ic(
        reinterpret_cast<unsigned char*>(crypt.data()),
        reinterpret_cast<const unsigned char*>(raw.data()),
        static_cast<unsigned long long>(raw.size()),
        nonce.data(),
        0,
        key.data()) != 0) {
        throw std::runtime_error("crypto_stream_chacha20_ietf_xor_ic failed");
    }

    return crypt;
}