#ifndef DIRECTINPUTJOYSTICK_H
#define DIRECTINPUTJOYSTICK_H

#include <QObject>
#include <windows.h>
#include <dinput.h>
#include <QThread>


class DirectInputJoystick : public QObject
{
    Q_OBJECT
public:
    explicit DirectInputJoystick(QObject *parent = nullptr);
    ~DirectInputJoystick();


    bool initialize();
    void startListening();


signals:
    // 轴变化信号（axis: 0-X, 1-Y, 2-Z; value: -1.0 ~ 1.0）
    void axisChanged(int axis, double value);
    // 按钮状态变化（button: 按钮编号，从0开始；pressed: 是否按下）
    void buttonChanged(int button, bool pressed);
    // 方向按钮状态变化（direction: 按钮编号，上下左右；pressed: 是否按下）
    void directionChanged(int direction);
    // 错误信号
    void errorOccurred(const QString &message);


private:
    bool setupDevice();
    void cleanup();
    static BOOL CALLBACK enumAxesCallback(const DIDEVICEOBJECTINSTANCE* doi, VOID* context);
    static BOOL CALLBACK enumJoysticksCallback(const DIDEVICEINSTANCE* instance, VOID* context);

    DIJOYSTATE lastState;
    LPDIRECTINPUT8 m_pDirectInput = nullptr;
    LPDIRECTINPUTDEVICE8 m_pJoystick = nullptr;
    HANDLE m_hEvent = nullptr;
    QThread *m_workerThread;
    bool m_isRunning = false;
};

#endif // DIRECTINPUTJOYSTICK_H