#include <QVBoxLayout>
#include <QtWidgets>
#include <format>
#include <fstream>
#include <memory>
#include <nlohmann/json.hpp>
#include <qapplication.h>
#include <qboxlayout.h>
#include <qgridlayout.h>
#include <qlistwidget.h>
#include <qmenubar.h>
#include <qnamespace.h>
#include <qobject.h>
#include <qpushbutton.h>
#include <qtmetamacros.h>
#include <qtoolbar.h>
#include <qwidget.h>

class ControlInterface : public QObject
{
  public:
    ControlInterface& registerListOfCardsWidget(std::shared_ptr<QListWidget>& iListOfCards)
    {
        _listOfCardsWidget = iListOfCards;
        return *this;
    }

    ControlInterface& registerMainWindow(std::shared_ptr<QWidget>& iMainWindow)
    {
        _mainWindow = iMainWindow;
        return *this;
    }

    ControlInterface& registerMainMenuBar(std::shared_ptr<QMenuBar>& iMenuBar)
    {
        _mainMenuBar = iMenuBar;
        return *this;
    }

    ControlInterface& registerRightView(std::shared_ptr<QGraphicsView>& iRightView)
    {
        _rightView = iRightView;
        return *this;
    }

    std::shared_ptr<QWidget> listOfCardsWidget()
    {
        return _listOfCardsWidget;
    }

    std::shared_ptr<QWidget> mainWindow()
    {
        return _mainWindow;
    }

    std::shared_ptr<QMenuBar> mainMenuBar()
    {
        return _mainMenuBar;
    }

    std::shared_ptr<QGraphicsView> rightView()
    {
        return _rightView;
    }

    ControlInterface& configure()
    {
        configureListOfCardsWidget().configureMainMenuBar().configureRightGraphicsView();
        return *this;
    }

  public slots:

    void display_card(QListWidgetItem* iItem)
    {
        _popUpWindowSelectCard = std::make_shared<QWidget>(_mainWindow.get());
        _popUpWindowSelectCard->resize(400, 500);
        _popUpWindowSelectCard->setWindowFlag(Qt::WindowType::Dialog);
        _popUpWindowSelectCard->show();
    }

  private:
    std::shared_ptr<QListWidget> _listOfCardsWidget;
    std::shared_ptr<QWidget> _mainWindow;
    std::shared_ptr<QMenuBar> _mainMenuBar;
    std::shared_ptr<QGraphicsView> _rightView;
    std::shared_ptr<QGraphicsScene> _rightScene;

    std::vector<nlohmann::basic_json<>> _cards;
    std::shared_ptr<QWidget> _popUpWindowSelectCard;

    ControlInterface& fillListOfCards(const std::string& iCardsJsonPath)
    {
        std::ifstream aCardsJsonFile{iCardsJsonPath};
        uint64_t aCardIndex{0};
        _cards.clear();
        _listOfCardsWidget->clear();
        for (auto& aCard : nlohmann::json::parse(aCardsJsonFile))
        {
            _cards.push_back(aCard);
            _listOfCardsWidget->insertItem(aCardIndex++,
                                           std::format("{} ({})", aCard["name"].get<std::string>(),
                                                       aCard["id"].get<uint64_t>())
                                               .c_str());
        }
        QObject::connect(_listOfCardsWidget.get(), &QListWidget::itemDoubleClicked, this,
                         &ControlInterface::display_card);
        _listOfCardsWidget->setVisible(true);
        _listOfCardsWidget->setFixedWidth(_listOfCardsWidget->sizeHintForColumn(0) +
                                          2 * _listOfCardsWidget->frameWidth() + 20);
        _mainWindow->resize(1500, 1000);
        return *this;
    }

    ControlInterface& configureListOfCardsWidget()
    {
        _listOfCardsWidget->hide();
        return *this;
    }

    ControlInterface& configureMainMenuBar()
    {
        QMenu* aOpenMenu = _mainMenuBar->addMenu("File");
        aOpenMenu->addAction("Open JSON file",
                             [this]
                             {
                                 QFileDialog aFileDialog;
                                 aFileDialog.setWindowTitle("Choose JSON file");
                                 QDir aCurrentDir{QDir::currentPath()};
                                 aFileDialog.setDirectory(aCurrentDir);
                                 aFileDialog.setFileMode(QFileDialog::ExistingFile);
                                 aFileDialog.setOption(QFileDialog::ShowDirsOnly, false);
                                 aFileDialog.setNameFilter("*.json");
                                 aFileDialog.exec();
                                 const QStringList kFilePaths{aFileDialog.selectedFiles()};
                                 if (kFilePaths.size() > 0)
                                 {
                                     fillListOfCards(kFilePaths[0].toStdString());
                                     _rightView->setVisible(true);
                                 }
                             });
        aOpenMenu->addAction("Quit", [this] { _mainWindow->close(); });
        return *this;
    }

    ControlInterface& configureRightGraphicsView()
    {
        _rightScene             = std::make_shared<QGraphicsScene>();
        QGraphicsRectItem* rect = _rightScene->addRect(QRectF(0, 0, 100, 100));
        QGraphicsItem* item     = _rightScene->itemAt(50, 50, QTransform());
        _rightView->setScene(_rightScene.get());
        _rightView->hide();
        return *this;
    }
};

// int main(int argc,
//          char* argv[])
//{
//     QApplication aApplication(argc, argv);
//     auto aWindow = std::make_shared<QWidget>();
//     aWindow->resize(400, 50);
//     // Set Dialog flag for i3 users
//     aWindow->setWindowFlag(Qt::WindowType::Dialog);
//
//     QGridLayout aLayout(aWindow.get());
//     QHBoxLayout aHLayout(aLayout.widget());
//     auto aMenuBar = std::make_shared<QMenuBar>();
//     aLayout.addWidget(aMenuBar.get(), 0, 0);
//     auto aListOfCards = std::make_shared<QListWidget>();
//     aLayout.addLayout(&aHLayout, 1, 0);
//     aHLayout.addWidget(aListOfCards.get());
//     auto aRightView = std::make_shared<QGraphicsView>();
//     aHLayout.addWidget(aRightView.get());
//
//     ControlInterface aControlInterface;
//     aControlInterface.registerListOfCardsWidget(aListOfCards)
//         .registerMainWindow(aWindow)
//         .registerMainMenuBar(aMenuBar)
//         .registerRightView(aRightView)
//         .configure();
//     aWindow->show();
//     aWindow->setWindowTitle("Hearthstone simulator");
//     return aApplication.exec();
// }

class ControlCentre : public QObject
{
    Q_OBJECT
  public:
    /* view */
  public slots:
    void setView(/* View */);

  signals:
    void viewSelected(/* selected view */);

  private:
};

auto main(int argc,
          char* argv[]) -> int
{
    QApplication aApplication(argc, argv);
    auto aWindow = std::make_shared<QWidget>();
    aWindow->resize(1400, 800);
    // Set Dialog flag for i3 users
    aWindow->setWindowFlag(Qt::WindowType::Dialog);
    aWindow->show();
    aWindow->setWindowTitle("Hearthstone simulator");
    return aApplication.exec();
}