#include "application/mainmenu.h"
#include "widgets/pushbutton.h"
#include "widgets/group.h"

MainMenu::MainMenu(const std::shared_ptr<kku::CoreFactory>& factory, MainMenu::Callbacks&& callbacks) :
    _callbacks(std::move(callbacks)),
    _core_factory(factory),
    _buttons(std::make_shared<Group>())
{
}

void MainMenu::input(const kku::SystemEvent& event)
{
    _buttons->input(event);
}

void MainMenu::update(const kku::microsec& dt)
{
    _buttons->update(dt);
}

void MainMenu::display() const
{
    _buttons->display();
}

void MainMenu::enter()
{
    const auto render_size = _core_factory->getRenderSize();
    const float window_width = render_size.first;
    const float window_height = render_size.second;

    auto button_start = std::make_shared<PushButton>("Start", _core_factory, 48);
    button_start->setRect(kku::Area<float>{window_width / 3.f, window_height / 7.f,
                                           window_width / 3.f, window_height / 7.f});
    button_start->setCallback(_callbacks.onAppendGameState);

    auto button_editor = std::make_shared<PushButton>("Editor", _core_factory, 48);
    button_editor->setRect(kku::Area<float>{window_width / 3.f, window_height / 7.f * 3,
                                            window_width / 3.f, window_height / 7.f});
    button_editor->setCallback(_callbacks.onAppendEditorState);

    auto button_about = std::make_shared<PushButton>("About", _core_factory, 48);
    button_about->setRect(kku::Area<float>{window_width / 3.f, window_height / 7.f * 5,
                                            window_width / 3.f, window_height / 7.f});
    button_about->setCallback(_callbacks.onAppendAboutState);

    _buttons->addChild(button_start);
    _buttons->addChild(button_editor);
    _buttons->addChild(button_about);

    _buttons->setVisibility();
}

void MainMenu::leave()
{
    _buttons->setVisibility(false);
}