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

class MainWindowMediator {
  public:
    MainWindowMediator &setListOfCardsWidget(std::shared_ptr<QListWidget> &iListOfCards) {
        _listOfCardsWidget = iListOfCards;
        return *this;
    }
    MainWindowMediator &setMainWindow(std::shared_ptr<QWidget> &iMainWindow) {
        _mainWindow = iMainWindow;
        return *this;
    }
    std::shared_ptr<QWidget> getListOfCardsWidget() { return _listOfCardsWidget; }
    std::shared_ptr<QWidget> getMainWindow() { return _mainWindow; }
    MainWindowMediator &fillListOfCards(const std::string &iCardsJsonPath) {
        std::ifstream aCardsJsonFile{iCardsJsonPath};
        uint64_t aCardIndex{0};
        _listOfCardsWidget->clear();
        for (auto &aCard : nlohmann::json::parse(aCardsJsonFile)) {
            _listOfCardsWidget->insertItem(aCardIndex++,
                                           std::format("{} ({})", aCard["name"].get<std::string>(),
                                                       aCard["id"].get<uint64_t>())
                                               .c_str());
        }
        _listOfCardsWidget->setVisible(true);
        _listOfCardsWidget->setFixedWidth(_listOfCardsWidget->sizeHintForColumn(0) +
                                          2 * _listOfCardsWidget->frameWidth() + 20);
        _mainWindow->resize(1500, 1000);
        return *this;
    }

  private:
    std::shared_ptr<QListWidget> _listOfCardsWidget;
    std::shared_ptr<QWidget> _mainWindow;
};

void configureMainMenuBar(QMenuBar &iMenuBar, MainWindowMediator &iMainWindowMediator) {
    QMenu *aOpenMenu = iMenuBar.addMenu("File");
    aOpenMenu->addAction("Open JSON file", [&iMainWindowMediator] {
        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) {
            iMainWindowMediator.fillListOfCards(kFilePaths[0].toStdString());
        }
    });
    aOpenMenu->addAction("Quit",
                         [&iMainWindowMediator] { iMainWindowMediator.getMainWindow()->close(); });
}

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());
    QMenuBar aMenuBar;
    aLayout.addWidget(&aMenuBar, 0, 0);
    auto aListOfCards = std::make_shared<QListWidget>();
    aListOfCards->hide();
    aLayout.addWidget(aListOfCards.get(), 1, 0);

    MainWindowMediator aMainWindowMediator;
    aMainWindowMediator.setListOfCardsWidget(aListOfCards);
    aMainWindowMediator.setMainWindow(aWindow);
    configureMainMenuBar(aMenuBar, aMainWindowMediator);

    aWindow->show();
    aWindow->setWindowTitle("Hearthstone simulator");
    return aApplication.exec();
}