#pragma once
#include <chrono>
#include <Eigen/Dense>
#define _USE_MATH_DEFINES
#include <math.h>
#include <iostream>


using std::min;
using std::max;

constexpr float ANGULAR_ACCEL = 0.005f * 1000.0f;
constexpr float SHIP_ACCEL = 1.0f * 1000.0f; 
constexpr float ROTATION_SENSITIVITY = 0.002f;

constexpr long long SERVER_DELAY = 0; //ms
constexpr long long CLIENT_DELAY = 200; //ms
constexpr long long CUTOFF_TIME = 5000; //ms

struct ClientState {
    int id = 0;
    Eigen::Vector3f position = { 0, 0, 45000.0f };
    Eigen::Matrix3f rotation = Eigen::Matrix3f::Identity();
    Eigen::Vector3f currentAngularVelocity = Eigen::Vector3f::Zero();
    float velocity = 0.0f;
    int selectedVelocity = 0;
    float discreteMag = 0;
    int discreteAngle = -1;

    // Для расчета лага
    std::chrono::system_clock::time_point lastUpdateServerTime;

    void simulate_physics(size_t delta);

    void apply_lag_compensation(std::chrono::system_clock::time_point nowTime);

    void handle_full_sync(const std::vector<std::string>& parts, int startFrom);

    std::string formPingMessageContent();
};

struct ClientStateInterval
{
	std::vector<ClientState> timedStates;

    void add_state(const ClientState& state);

    bool canFetchClientStateAtTime(std::chrono::system_clock::time_point targetTime) const;

    ClientState fetchClientStateAtTime(std::chrono::system_clock::time_point targetTime) const;
};