#ifndef QMPVISUALIZATION_H
#define QMPVISUALIZATION_H

#include <stack>
#include <chrono>
#include <thread>
#include <utility>
#include <vector>
#include <smelt.hpp>
#include <smmath.hpp>
#include <smttfont.hpp>
#include "qmpvirtualpiano3d.hpp"
#include "../include/qmpcorepublic.hpp"

class qmpVisualization;
struct MidiVisualEvent
{
    uint32_t tcs, tce;
    uint32_t key, vel;
    uint32_t ch;
};
class qmpVisualization: public qmpPluginIntf, public qmpFuncBaseIntf
{
    friend class CloseHandler;
private:
    qmpPluginAPI *api;
    std::thread *rendererTh;
    std::vector<MidiVisualEvent *>pool;
    smHandler *h, *closeh;
    std::stack<uint32_t> pendingt[16][128], pendingv[16][128];
    SMELT *sm;
    SMTRG tdscn, tdparticles;
    SMTEX chequer, bgtex, particletex, pianotex;
    smTTFont font, font2, fonthdpi;
    qmpVirtualPiano3D *p3d[16];
    smEntity3DBuffer *nebuf;
    smParticleSystem *pss[16][128];
    smPSEmissionPositionGenerator *psepg;
    float pos[3], rot[3], lastx, lasty;
    uint32_t ctc, ctk, elb, lstk, cfr;
    uint32_t cts, cks, ctp, cpbr[16], cpw[16];
    uint32_t rpnid[16], rpnval[16];
    std::chrono::steady_clock::time_point lst;
    double etps;
    double roffset;
    bool shouldclose, playing, debug;
    bool rendermode, hidewindow;
    int herh, heh, hfrf;
    int uihb, uihs, uihp, uihr, uihk;
    void(*framecb)(void *, size_t, uint32_t, uint32_t);
    DWORD *fbcont;
    std::vector<std::pair<uint32_t, uint32_t>>tspool;
    int traveld[16][128];
    bool notestatus[16][128], lastnotestatus[16][128];
    int spectra[16][128], spectrar[16][128];
    void drawCube(smvec3d a, smvec3d b, DWORD col, SMTEX tex, int faces = 63);
    void showThread();
    void pushNoteOn(uint32_t tc, uint32_t ch, uint32_t key, uint32_t vel);
    void pushNoteOff(uint32_t tc, uint32_t ch, uint32_t key);
    void updateVisualization3D();
    void updateVisualization2D();

    static qmpVisualization *inst;
public:
    qmpVisualization(qmpPluginAPI *_api);
    ~qmpVisualization();
    void show();
    void close();
    bool update();
    void start();
    void stop();
    void pause();
    void reset();
    void switchToRenderMode(void(*frameCallback)(void *, size_t, uint32_t, uint32_t), bool _hidewindow);

    void init();
    void deinit();
    const char *pluginGetName();
    const char *pluginGetVersion();

    static qmpVisualization *instance();
};

class CMidiVisualHandler: public smHandler
{
private:
    qmpVisualization *p;
public:
    CMidiVisualHandler(qmpVisualization *par)
    {
        p = par;
    }
    bool handlerFunc()
    {
        return p->update();
    }
};

class CloseHandler: public smHandler
{
private:
    qmpVisualization *p;
public:
    CloseHandler(qmpVisualization *par)
    {
        p = par;
    }
public:
    bool handlerFunc()
    {
        std::thread([this]
        {
            p->api->setFuncState("Visualization", false);
            p->close();
        }).detach();
        return false;
    }
};

extern "C" {
    EXPORTSYM qmpPluginIntf *qmpPluginGetInterface(qmpPluginAPI *api)
    {
        return new qmpVisualization(api);
    }
    EXPORTSYM const char *qmpPluginGetAPIRev()
    {
        return QMP_PLUGIN_API_REV;
    }
    EXPORTSYM void switchToRenderMode(void(*frameCallback)(void *, size_t, uint32_t, uint32_t), bool hidewindow)
    {
        if (qmpVisualization::instance())
            qmpVisualization::instance()->switchToRenderMode(frameCallback, hidewindow);
    }
}

#endif // QMPVISUALIZATION_H