ChatProtocol.hpp

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#pragma once
 
#include "ecs/components/ClientId.hpp"
 
#include <cstdint>
#include <optional>
#include <span>
#include <string>
#include <string_view>
#include <vector>
 
namespace net::chat
{
 
inline constexpr std::uint16_t k_maxChatBytes = 240;
 
struct ClientTextChat
{
    std::uint16_t clientSeq = 0;
    std::string message;
};
 
struct ServerTextChat
{
    ClientId sender{};
    std::uint32_t serverSeq = 0;
    std::string message;
};
 
[[nodiscard]] bool isValidUtf8(std::string_view text) noexcept;
[[nodiscard]] std::string sanitizeUtf8(std::string_view text);
[[nodiscard]] std::vector<std::uint8_t> encodeClientText(std::uint16_t clientSeq, std::string_view text);
[[nodiscard]] std::vector<std::uint8_t>
encodeServerText(ClientId sender, std::uint32_t serverSeq, std::string_view text);
[[nodiscard]] std::optional<ClientTextChat> decodeClientText(std::span<const std::uint8_t> payload);
[[nodiscard]] std::optional<ServerTextChat> decodeServerText(std::span<const std::uint8_t> payload);
 
} // namespace net::chat