#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QItemDelegate>
#include <QLabel>
#include <QListView>
#include <QMainWindow>
#include <QSplitter>
#include <QStandardItemModel>
#include <QTableView>

class GroupDisplayDelegate : public QItemDelegate {
public:
    GroupDisplayDelegate();
    virtual ~GroupDisplayDelegate() override;

    // QAbstractItemDelegate interface
public:
    virtual QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
    virtual void setEditorData(QWidget* editor, const QModelIndex& index) const override;
    virtual void setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const override;
    virtual void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
    virtual void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
    virtual QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const override;
};

class ItemDisplayDelegate : public QItemDelegate {
public:
    ItemDisplayDelegate();
    virtual ~ItemDisplayDelegate() override;

    // QAbstractItemDelegate interface
public:
    virtual void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
    virtual QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const override;
    virtual QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
    virtual void setEditorData(QWidget* editor, const QModelIndex& index) const override;
    virtual void setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const override;
    virtual void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
};

class MainWindow : public QMainWindow {
    Q_OBJECT

public:
    MainWindow(QWidget* parent = nullptr);
    virtual ~MainWindow() override;

private:
    QListView* const groups_view;
    QStandardItemModel* const groups_list;
    QListView* const items_view;
    QStandardItemModel* const items_list;
    QSplitter* const details_panel;

    QLabel* const cover_display;
    QTableView* const details_view;
    QStandardItemModel* const details_model;
    QTableView* const labels_view;
    QStandardItemModel* const labels_model;

    void init_groups_list(QStandardItemModel* model);
    void init_items_present(const QModelIndex& index);
};
#endif // MAINWINDOW_H