// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#pragma once

#include "dashboard/dto.h"

#include <QHeaderView>
#include <QList>

#include <optional>

namespace Axivion::Internal {

class IssueHeaderView : public QHeaderView
{
    Q_OBJECT
public:
    struct ColumnInfo
    {
        QString key;
        int width = 0;
        std::optional<Qt::SortOrder> sortOrder = std::nullopt;
        bool sortable = false;
        bool filterable = false;
        std::optional<QString> filter = std::nullopt;
    };

    explicit IssueHeaderView(QWidget *parent = nullptr) : QHeaderView(Qt::Horizontal, parent) {}
    void setColumnInfoList(const QList<ColumnInfo> &infos);

    const QString currentSortString() const;
    const QMap<QString, QString> currentFilterMapping() const;

    void updateExistingColumnInfos(const std::map<QString, QString> &filters,
                                   const std::optional<std::vector<Dto::SortInfoDto>> &sorters);
signals:
    void filterChanged();
    void sortTriggered();

protected:
    void paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const override;
    QSize sectionSizeFromContents(int logicalIndex) const override;
    void mousePressEvent(QMouseEvent *event) override;
    void mouseReleaseEvent(QMouseEvent *event) override;
    void mouseMoveEvent(QMouseEvent *event) override;

private:
    void onToggleSort(int index, Qt::SortOrder order, bool multi);
    bool m_dragging = false;
    enum ToggleMode {Sort, Filter};
    std::optional<ToggleMode> m_maybeToggle = std::nullopt;
    bool m_withShift = false;
    int m_lastToggleLogicalPos = -1;
    QList<ColumnInfo> m_columnInfoList;
    QList<int> m_currentSortIndexes;
};

} // namespace Axivion::Internal