#include "XcbEventInterface.h"

#include "KeyboardEvent.h"
#include "DiscretePoint.h"
#include "MouseEvent.h"
#include "PaintEvent.h"
#include "Keyboard.h"

#include <xcb/xcb.h>

std::unique_ptr<XcbEventInterface> XcbEventInterface::Create()
{
    return std::make_unique<XcbEventInterface>();
}

std::unique_ptr<KeyboardEvent> XcbEventInterface::convertKeyPress(xcb_key_press_event_t* event, Keyboard* keyboard) const
{
    auto ui_event = KeyboardEvent::Create();
    ui_event->setAction(KeyboardEvent::Action::Pressed);

    if (auto function = keyboard->getFunction(event->detail); function != Keyboard::Function::UNSET)
    {
        ui_event->setFunction(function);
    }
    else
    {
        ui_event->setKeyString(keyboard->getKeyString(event->detail));
    }
    return ui_event;
}

std::unique_ptr<KeyboardEvent> XcbEventInterface::convertKeyRelease(xcb_key_press_event_t* event, Keyboard* keyboard) const
{
    auto ui_event = KeyboardEvent::Create();
    ui_event->setAction(KeyboardEvent::Action::Released);

    if (auto function = keyboard->getFunction(event->detail); function != Keyboard::Function::UNSET)
    {
        ui_event->setFunction(function);
    }
    else
    {
        ui_event->setKeyString(keyboard->getKeyString(event->detail));
    }
    return ui_event;
}

std::unique_ptr<MouseEvent> XcbEventInterface::convertButtonPress(xcb_button_press_event_t* event) const
{
    auto ui_event = MouseEvent::Create();
    auto x = static_cast<unsigned>(event->event_x);
    auto y = static_cast<unsigned>(event->event_y);
    ui_event->setClientLocation(DiscretePoint(x, y));

    auto screen_x = static_cast<unsigned>(event->root_x);
    auto screen_y = static_cast<unsigned>(event->root_y);
    ui_event->setScreenLocation(DiscretePoint(screen_x, screen_y));
    ui_event->setAction(MouseEvent::Action::Pressed);
    return ui_event;
}

std::unique_ptr<MouseEvent> XcbEventInterface::convertButtonRelease(xcb_button_press_event_t* event) const
{
    auto ui_event = MouseEvent::Create();
    auto x = static_cast<unsigned>(event->event_x);
    auto y = static_cast<unsigned>(event->event_y);
    ui_event->setClientLocation(DiscretePoint(x, y));

    auto screen_x = static_cast<unsigned>(event->root_x);
    auto screen_y = static_cast<unsigned>(event->root_y);
    ui_event->setScreenLocation(DiscretePoint(screen_x, screen_y));

    ui_event->setAction(MouseEvent::Action::Released);
    return ui_event;
}