/* SPDX-FileCopyrightText: 2026 Project Tick
 * SPDX-FileContributor: Project Tick
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 *   MeshMC - A Custom Launcher for Minecraft
 *   Copyright (C) 2026 Project Tick
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#pragma once

#include "QtCore/qpointer.h"
#include <QtGui/qaccessible.h>
#include <QAccessibleWidget>
#include <QAbstractItemView>
#ifndef QT_NO_ACCESSIBILITY
#include "InstanceView.h"
// #include <QHeaderView>

class QAccessibleTableCell;
class QAccessibleTableHeaderCell;

class AccessibleInstanceView : public QAccessibleTableInterface,
							   public QAccessibleObject
{
  public:
	explicit AccessibleInstanceView(QWidget* w);
	bool isValid() const override;

	QAccessible::Role role() const override;
	QAccessible::State state() const override;
	QString text(QAccessible::Text t) const override;
	QRect rect() const override;

	QAccessibleInterface* childAt(int x, int y) const override;
	int childCount() const override;
	int indexOfChild(const QAccessibleInterface*) const override;

	QAccessibleInterface* parent() const override;
	QAccessibleInterface* child(int index) const override;

	void* interface_cast(QAccessible::InterfaceType t) override;

	// table interface
	QAccessibleInterface* cellAt(int row, int column) const override;
	QAccessibleInterface* caption() const override;
	QAccessibleInterface* summary() const override;
	QString columnDescription(int column) const override;
	QString rowDescription(int row) const override;
	int columnCount() const override;
	int rowCount() const override;

	// selection
	int selectedCellCount() const override;
	int selectedColumnCount() const override;
	int selectedRowCount() const override;
	QList<QAccessibleInterface*> selectedCells() const override;
	QList<int> selectedColumns() const override;
	QList<int> selectedRows() const override;
	bool isColumnSelected(int column) const override;
	bool isRowSelected(int row) const override;
	bool selectRow(int row) override;
	bool selectColumn(int column) override;
	bool unselectRow(int row) override;
	bool unselectColumn(int column) override;

	QAbstractItemView* view() const;

	void modelChange(QAccessibleTableModelChangeEvent* event) override;

  protected:
	// maybe vector
	typedef QHash<int, QAccessible::Id> ChildCache;
	mutable ChildCache childToId;

	virtual ~AccessibleInstanceView();

  private:
	inline int logicalIndex(const QModelIndex& index) const;
};

class AccessibleInstanceViewItem : public QAccessibleInterface,
								   public QAccessibleTableCellInterface,
								   public QAccessibleActionInterface
{
  public:
	AccessibleInstanceViewItem(QAbstractItemView* view,
							   const QModelIndex& m_index);

	void* interface_cast(QAccessible::InterfaceType t) override;
	QObject* object() const override
	{
		return nullptr;
	}
	QAccessible::Role role() const override;
	QAccessible::State state() const override;
	QRect rect() const override;
	bool isValid() const override;

	QAccessibleInterface* childAt(int, int) const override
	{
		return nullptr;
	}
	int childCount() const override
	{
		return 0;
	}
	int indexOfChild(const QAccessibleInterface*) const override
	{
		return -1;
	}

	QString text(QAccessible::Text t) const override;
	void setText(QAccessible::Text t, const QString& text) override;

	QAccessibleInterface* parent() const override;
	QAccessibleInterface* child(int) const override;

	// cell interface
	int columnExtent() const override;
	QList<QAccessibleInterface*> columnHeaderCells() const override;
	int columnIndex() const override;
	int rowExtent() const override;
	QList<QAccessibleInterface*> rowHeaderCells() const override;
	int rowIndex() const override;
	bool isSelected() const override;
	QAccessibleInterface* table() const override;

	// action interface
	QStringList actionNames() const override;
	void doAction(const QString& actionName) override;
	QStringList keyBindingsForAction(const QString& actionName) const override;

  private:
	QPointer<QAbstractItemView> view;
	QPersistentModelIndex m_index;

	void selectCell();
	void unselectCell();

	friend class AccessibleInstanceView;
};
#endif /* !QT_NO_ACCESSIBILITY */