// gKeyMapper daemon - raw USB HID access to the keyboard's vendor interface.
#ifndef GKEYMAPPER_DAEMON_GKEY_DEVICE_H
#define GKEYMAPPER_DAEMON_GKEY_DEVICE_H

#include <cstdint>

#include "device_tables.h"

struct libusb_context;
struct libusb_device_handle;

namespace gkeymapper::daemon {

class GKeyDevice {
public:
    GKeyDevice() = default;
    ~GKeyDevice();

    GKeyDevice(const GKeyDevice&) = delete;
    GKeyDevice& operator=(const GKeyDevice&) = delete;

    // Finds a supported keyboard, opens it and detaches the kernel driver from
    // the vendor interface. Returns false (and logs) if none is found.
    bool open();
    void close();
    bool is_open() const { return handle_ != nullptr; }

    // Sends the "stop mapping G-keys to F-keys" command if the model needs it.
    bool disable_binding();

    // Reads one interrupt report. Returns the number of bytes (>0), 0 on
    // timeout, or a negative value on error.
    int read_report(uint8_t* buffer, int length, int timeoutMs);

    const DeviceProfile* profile() const { return profile_; }

private:
    bool find_endpoint();

    libusb_context* context_ = nullptr;
    libusb_device_handle* handle_ = nullptr;
    const DeviceProfile* profile_ = nullptr;
    uint8_t endpoint_ = 0;
    int claimed_interface_ = -1;
    bool detached_kernel_driver_ = false;
};

} // namespace gkeymapper::daemon

#endif // GKEYMAPPER_DAEMON_GKEY_DEVICE_H