// gKeyMapper daemon - virtual keyboard for replaying "key" mappings.
#ifndef GKEYMAPPER_DAEMON_UINPUT_KEYBOARD_H
#define GKEYMAPPER_DAEMON_UINPUT_KEYBOARD_H

#include <vector>

#include "mapping.h"

namespace gkeymapper::daemon {

// A virtual keyboard created through /dev/uinput. It is only used to replay
// shortcuts; the daemon never reads from it.
class UinputKeyboard {
public:
    UinputKeyboard() = default;
    ~UinputKeyboard();

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

    bool open();
    void close();
    bool is_open() const { return fd_ >= 0; }

    // Presses and releases every step of the shortcut in order.
    void play(const std::vector<gkeymapper::ShortcutStep>& steps);

    // Presses and releases a single Linux key code. The media keys are replayed
    // with this: the keyboard reports them on its own (see README), so the daemon
    // passes them on unchanged instead of turning them into a mapping.
    void tap(unsigned short code);

private:
    void emit(unsigned short type, unsigned short code, int value);
    void sync();
    void key_event(unsigned short code, bool down);

    int fd_ = -1;
};

} // namespace gkeymapper::daemon

#endif // GKEYMAPPER_DAEMON_UINPUT_KEYBOARD_H