#ifndef USBHANDLER_H
#define USBHANDLER_H

#include <libusb-1.0/libusb.h>
#include <QByteArray>
#include <QString>
#include <QObject>
#include <QDebug>
#include "log.h"
#include "QMap"

class UsbHandler : public QObject
{
    Q_OBJECT

public:
    explicit UsbHandler(QObject *parent = nullptr);
    ~UsbHandler();

    bool initialize();
    void listDevices();
    bool openDevice(int deviceIndex);  // New function to open a device by index
    //控制传输使用的是 endpoint 0（默认控制端点）
    bool sendControlTransfer(
        uint8_t bmRequestType,  // 请求类型
        uint8_t bRequest,       // 请求编号
        uint16_t wValue,        // 请求参数值（根据请求定义而定）
        uint16_t wIndex,        // 接口号或端点号
        uint8_t *data,          // 数据缓冲区（发送或接收）
        uint16_t length         // 数据长度
        );


    bool sendBulkTransfer(uint8_t endpoint, uint8_t *data, int length,int interfaceNum);
    bool sendAsyncTransfer(uint8_t endpoint, uint8_t *data, int length,int interfaceNum);
    void listInterfaces(int deviceIndex);

    // bool sendInterruptTransfer(uint8_t endpoint, uint8_t *data, int length);

    bool closeDevice();

    void listInterfaceEndpoints(int deviceIndex, int interfaceNumber);



signals:
    void errorOccurred(const QString &errorMessage);
    void productListUpdate(QMap<int,QString> *_productList);
    void interfaceListUpdate(QMap<int,QString> *_interfaceList);
    void endPointListUpdate(QMap<int,QString> *_endPointList);



private:
    libusb_context *context;
    libusb_device **deviceList;
    ssize_t deviceCount;
    libusb_device_handle *handle;
    QMap<int,QString> *productList;
    QMap<int,QString> *interfaceList;
    QMap<int,QString> *endPointList;


    QString printDeviceInfo(libusb_device *device);
};

#endif // USBHANDLER_H