/*
This Source Code Form is subject to the
terms of the Mozilla Public License, v.
2.0. If a copy of the MPL was not
distributed with this file, You can
obtain one at
http://mozilla.org/MPL/2.0/.
*/

#pragma once

#include <GLFW/glfw3.h>
#include <string>

#include "classes.h"
#include "Camera.h"
#include "sky.h"
#include "sun.h"
#include "moon.h"
#include "stars.h"
#include "skydome.h"
#include "messaging.h"

// wrapper for environment elements -- sky, sun, stars, clouds etc
class world_environment {

    friend opengl_renderer;

public:
    void init();
    void update();
    void time( int const Hour = -1, int const Minute = -1, int const Second = -1 );

private:
    CSkyDome m_skydome;
    cStars m_stars;
    cSun m_sun;
    cMoon m_moon;
    TSky m_clouds;
};

class TWorld
{
    // NOTE: direct access is a shortcut, but world etc needs some restructuring regardless
    friend opengl_renderer;

public:
// types

// constructors
TWorld();

// destructor
~TWorld();

// methods
    void CreateE3D( std::string const &dir = "", bool dyn = false );
    bool Init( GLFWwindow *w );
    bool InitPerformed() { return m_init; }
    bool Update();
    void OnKeyDown( int cKey );
    void OnCommandGet( multiplayer::DaneRozkaz *pRozkaz );
    // passes specified sound to all vehicles within range as a radio message broadcasted on specified channel
    void radio_message( sound_source *Message, int const Channel );
    void CabChange( TDynamicObject *old, TDynamicObject *now );
    void TrainDelete(TDynamicObject *d = NULL);
    TTrain const *
        train() const { return Train; }
    TDynamicObject const *
        controlled() const { return Controlled; }
    // switches between static and dynamic daylight calculation
    void ToggleDaylight();
    // calculates current season of the year based on set simulation date
    void compute_season( int const Yearday ) const;
    // calculates current weather
    void compute_weather() const;

// members

private:
    void Update_Environment();
    void Update_Camera( const double Deltatime );
    // handles vehicle change flag
    void ChangeDynamic();
    void InOutKey( bool const Near = true );
    void FollowView( bool wycisz = true );
    void DistantView( bool const Near = false );

    TCamera Camera;
    TCamera DebugCamera;
    world_environment Environment;
    TTrain *Train;
    TDynamicObject *Controlled { nullptr }; // pojazd, który prowadzimy
    TDynamicObject *pDynamicNearest { nullptr };
    bool Paused { true };
    TEvent *KeyEvents[10]; // eventy wyzwalane z klawiaury
    TMoverParameters *mvControlled; // wskaźnik na człon silnikowy, do wyświetlania jego parametrów
    double fTime50Hz; // bufor czasu dla komunikacji z PoKeys
    double fTimeBuffer; // bufor czasu aktualizacji dla stałego kroku fizyki
    double fMaxDt; //[s] krok czasowy fizyki (0.01 dla normalnych warunków)
    double const m_primaryupdaterate { 1.0 / 100.0 };
    double const m_secondaryupdaterate { 1.0 / 50.0 };
    double m_primaryupdateaccumulator { m_secondaryupdaterate }; // keeps track of elapsed simulation time, for core fixed step routines
    double m_secondaryupdateaccumulator { m_secondaryupdaterate }; // keeps track of elapsed simulation time, for less important fixed step routines
    int iPause; // wykrywanie zmian w zapauzowaniu
    bool m_init { false }; // indicates whether initial update of the world was performed
    GLFWwindow *window;
};

extern TWorld World;

//---------------------------------------------------------------------------