#include "humanizerkeyhandler.h"
#include <unistd.h>

HumanizerKeyHandler::HumanizerKeyHandler(std::unique_ptr<KeyHandler> keyHandler)
    : m_keyHandler(std::move(keyHandler))
{
}

void HumanizerKeyHandler::Key(SpecialKey key, KeyModifiers mods)
{
    m_keyHandler->Key(key, mods);
    InsertDelay(0, key, mods);
}

void HumanizerKeyHandler::Key(char key, KeyModifiers mods)
{
    m_keyHandler->Key(key, mods);
    InsertDelay(key, SpecialKey::NONE, mods);
}

void HumanizerKeyHandler::InsertDelay(char, SpecialKey currentKeySpecial, KeyModifiers mods)
{
    unsigned delay = minDelay + static_cast<unsigned>(rand()) % (maxDelay - minDelay);
    if (currentKeySpecial == SpecialKey::RETURN) {
        delay = delay * 2;
    }
    if (mods & KeyModifiers::KM_SHIFT_MASK) {
        delay = (delay * 3) / 2;
    }
    if (currentKeySpecial == SpecialKey::HOME || currentKeySpecial == SpecialKey::END) {
        delay = (delay * 3);
    }
    usleep(1000 * delay);
}