#include <expected>
#include <string>
#include <vector>
#include <span>
#include <iostream>

class TCPClient {
private:
        int sock;
public:
        TCPClient();
        std::expected<void, std::string> conn(std::string address, const int port);
        std::expected<int, std::string> writeBytes(std::span<const std::byte> payload);
        std::expected<int, std::string> writeBytes(std::string payload);
        std::expected<int, std::string> readBytes(std::vector<std::byte>* buffer);
        std::expected<int, std::string> readBytes(std::vector<uint8_t>* buffer);

        ~TCPClient() {
                close(sock);
        }
};