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// Copyright (c) 2013-2020 Vittorio Romeo
// License: Academic Free License ("AFL") v. 3.0
// AFL License page: https://opensource.org/licenses/AFL-3.0
#pragma once
#include "SSVOpenHexagon/Online/Sodium.hpp"
#include "SSVOpenHexagon/Online/DatabaseRecords.hpp"
#include "SSVOpenHexagon/Utils/Clock.hpp"
#include <SFML/Network/IpAddress.hpp>
#include <SFML/Network/TcpSocket.hpp>
#include <SFML/Network/Packet.hpp>
#include <chrono>
#include <cstdint>
#include <deque>
#include <list>
#include <optional>
#include <sstream>
#include <unordered_set>
#include <variant>
#include <vector>
namespace hg::Steam {
class steam_manager;
}
namespace hg {
struct replay_file;
struct compressed_replay_file;
class HexagonClient
{
public:
enum class State : std::uint8_t
{
Disconnected = 0,
InitError = 1,
Connecting = 2,
ConnectionError = 3,
Connected = 4,
LoggedIn = 5,
LoggedIn_Ready = 6,
};
// clang-format off
struct EConnectionSuccess { };
struct EConnectionFailure { std::string error; };
struct EKicked { };
struct ERegistrationSuccess { };
struct ERegistrationFailure { std::string error;};
struct ELoginSuccess { };
struct ELoginFailure { std::string error; };
struct ELogoutSuccess { };
struct ELogoutFailure { };
struct EDeleteAccountSuccess { };
struct EDeleteAccountFailure { std::string error; };
struct EReceivedTopScores { std::string levelValidator; std::vector<Database::ProcessedScore> scores; };
struct EReceivedOwnScore { std::string levelValidator; Database::ProcessedScore score; };
struct EGameVersionMismatch { };
struct EProtocolVersionMismatch { };
// clang-format on
using Event = std::variant< //
EConnectionSuccess, //
EConnectionFailure, //
EKicked, //
ERegistrationSuccess, //
ERegistrationFailure, //
ELoginSuccess, //
ELoginFailure, //
ELogoutSuccess, //
ELogoutFailure, //
EDeleteAccountSuccess, //
EDeleteAccountFailure, //
EReceivedTopScores, //
EReceivedOwnScore, //
EGameVersionMismatch, //
EProtocolVersionMismatch //
>;
private:
Steam::steam_manager& _steamManager;
std::optional<std::uint64_t> _ticketSteamID;
const sf::IpAddress _serverIp;
const unsigned short _serverPort;
sf::TcpSocket _socket;
bool _socketConnected;
sf::Packet _packetBuffer;
std::ostringstream _errorOss;
HRTimePoint _lastHeartbeatTime;
bool _verbose;
const SodiumPSKeys _clientPSKeys;
std::optional<SodiumPublicKeyArray> _serverPublicKey;
std::optional<SodiumRTKeys> _clientRTKeys;
State _state;
std::optional<std::uint64_t> _loginToken;
std::optional<std::string> _loginName;
std::deque<Event> _events;
std::unordered_set<std::string> _levelValidatorsSupportedByServer;
[[nodiscard]] bool initializeTicketSteamID();
[[nodiscard]] bool initializeTcpSocket();
template <typename T>
[[nodiscard]] bool sendUnencrypted(const T& data);
template <typename T>
[[nodiscard]] bool sendEncrypted(const T& data);
[[nodiscard]] bool sendHeartbeat();
[[nodiscard]] bool sendDisconnect();
[[nodiscard]] bool sendPublicKey();
[[nodiscard]] bool sendRegister(const std::uint64_t steamId,
const std::string& name, const std::string& passwordHash);
[[nodiscard]] bool sendLogin(const std::uint64_t steamId,
const std::string& name, const std::string& passwordHash);
[[nodiscard]] bool sendLogout(const std::uint64_t steamId);
[[nodiscard]] bool sendDeleteAccount(
const std::uint64_t steamId, const std::string& passwordHash);
[[nodiscard]] bool sendRequestTopScores(
const sf::Uint64 loginToken, const std::string& levelValidator);
[[nodiscard]] bool sendRequestOwnScore(
const sf::Uint64 loginToken, const std::string& levelValidator);
[[nodiscard]] bool sendRequestTopScoresAndOwnScore(
const sf::Uint64 loginToken, const std::string& levelValidator);
[[nodiscard]] bool sendStartedGame(
const sf::Uint64 loginToken, const std::string& levelValidator);
[[nodiscard]] bool sendCompressedReplay(const sf::Uint64 loginToken,
const std::string& levelValidator,
const compressed_replay_file& compressedReplayFile);
[[nodiscard]] bool sendRequestServerStatus(const sf::Uint64 loginToken);
[[nodiscard]] bool sendReady(const sf::Uint64 loginToken);
[[nodiscard]] bool sendPacketRecursive(const int tries, sf::Packet& p);
[[nodiscard]] bool recvPacketRecursive(const int tries, sf::Packet& p);
[[nodiscard]] bool sendPacket(sf::Packet& p);
[[nodiscard]] bool recvPacket(sf::Packet& p);
bool receiveDataFromServer(sf::Packet& p);
bool sendHeartbeatIfNecessary();
void addEvent(const Event& e);
template <typename... Ts>
[[nodiscard]] bool fail(const Ts&...);
[[nodiscard]] bool connectedAndInState(const State s) const noexcept;
[[nodiscard]] bool connectedAndInAnyState(
const State s0, const State s1) const noexcept;
public:
explicit HexagonClient(Steam::steam_manager& steamManager,
const sf::IpAddress& serverIp, const unsigned short serverPort);
~HexagonClient();
HexagonClient(const HexagonClient&) = delete;
HexagonClient(HexagonClient&&) = delete;
bool connect();
void disconnect();
void update();
bool tryRegister(const std::string& name, const std::string& password);
bool tryLogin(const std::string& name, const std::string& password);
bool tryLogoutFromServer();
bool tryDeleteAccount(const std::string& password);
bool tryRequestTopScores(const std::string& levelValidator);
bool tryRequestOwnScore(const std::string& levelValidator);
bool tryRequestTopScoresAndOwnScore(const std::string& levelValidator);
bool trySendStartedGame(const std::string& levelValidator);
bool trySendCompressedReplay(const std::string& levelValidator,
const compressed_replay_file& compressedReplayFile);
[[nodiscard]] State getState() const noexcept;
[[nodiscard]] bool hasRTKeys() const noexcept;
[[nodiscard]] const std::optional<std::string>&
getLoginName() const noexcept;
[[nodiscard]] std::optional<Event> pollEvent();
[[nodiscard]] bool isLevelSupportedByServer(
const std::string& levelValidator) const noexcept;
};
} // namespace hg
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