#pragma once
#include <nana/gui.hpp>
#include <nana/gui/widgets/menubar.hpp>
#include <nana/gui/widgets/textbox.hpp>
#include <nana/gui/place.hpp>
#include <nana/gui/msgbox.hpp>
#include <nana/gui/filebox.hpp>
#include <nana/gui/widgets/button.hpp>
#include <nana/gui/widgets/progress.hpp>
#include <nana/threads/pool.hpp>
#include <thread>
#include <iostream>
#include <atomic>

using namespace nana;
class MainWindow : public form
{
public:
    MainWindow();
    ~MainWindow();
    void wait(unsigned int wait = 0);
private:
    void mainLoop();

    place   place{ *this };
    textbox textBox{ *this };
    button startBtn{ *this };
    progress progressBar{ *this };
    threads::pool pool_;
    std::atomic_bool flag = true;
    std::atomic_bool started = false;
};

#include "MainWindow.h"

MainWindow::MainWindow()
{
    caption("Simple Game");

    textBox.borderless(true);
    textBox.editable(false);
    API::effects_edge_nimbus(textBox, effects::edge_nimbus::none);
    API::window_size(*this, nana::size(400, 450));
    place.div("vert<textbox height=400><btn height=20><progress height=20>");
    place["textbox"] << textBox;
    place["btn"] << startBtn;
    place["progress"] << progressBar;
    place.collocate();

    startBtn.caption("Start");
    startBtn.events().click(nana::threads::pool_push(pool_, *this, &MainWindow::mainLoop));

    auto window_handle = this->handle();
    textBox.events().key_press([&](const nana::arg_keyboard&arg)
    {
        textBox.reset("");
        textBox.append(std::wstring(L"Key pressed: ") + std::wstring(&arg.key) + L"\n", true);
    });
}

MainWindow::~MainWindow()
{
    flag = false;
    pool_.wait_for_finished();
}

void MainWindow::mainLoop()
{
    if (!started)
    {
        started = true;
        startBtn.caption("Stop");
        while (flag)
        {
            progressBar.inc();
            if (progressBar.value() >= 100)
                progressBar.value(0);
            wait(100);
        }
        startBtn.caption("Start");
        flag = true;
    }
    else
    {
        started = false;
        flag = false;
    }
}

void MainWindow::wait(unsigned int wait)
{
        std::this_thread::sleep_for(std::chrono::milliseconds{ wait });
}

#include "MainWindow.h"

int main()
{
    MainWindow window;
    window.show();

    exec();
}