/*
    SPDX-FileCopyrightText: 2014-2015 Eike Hein <hein@kde.org>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#pragma once

#include "forwardingmodel.h"

#include <KFilePlacesModel>
#include <QQmlParserStatus>
#include <QSortFilterProxyModel>
#include <KActivities/Stats/ResultModel>

class QModelIndex;
class KFileItem;

class GroupSortProxy : public QSortFilterProxyModel
{
    Q_OBJECT

public:
    explicit GroupSortProxy(AbstractModel *parentModel, QAbstractItemModel *sourceModel);
    ~GroupSortProxy() override;

protected:
    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;
};

class InvalidAppsFilterProxy : public QSortFilterProxyModel
{
    Q_OBJECT

public:
    explicit InvalidAppsFilterProxy(AbstractModel *parentModel, QAbstractItemModel *sourceModel);
    ~InvalidAppsFilterProxy() override;

protected:
    bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const override;
    bool lessThan(const QModelIndex &left, const QModelIndex &right) const override;

private Q_SLOTS:
    void connectNewFavoritesModel();

private:
    QPointer<AbstractModel> m_parentModel;
};

class RecentUsageModel : public ForwardingModel, public QQmlParserStatus
{
    Q_OBJECT
    Q_INTERFACES(QQmlParserStatus)

    Q_PROPERTY(int ordering READ ordering WRITE setOrdering NOTIFY orderingChanged)
    Q_PROPERTY(IncludeUsage shownItems READ shownItems WRITE setShownItems NOTIFY shownItemsChanged)

public:
    enum IncludeUsage {
        AppsAndDocs,
        OnlyApps,
        OnlyDocs,
    };
    Q_ENUM(IncludeUsage)

    enum Ordering {
        Recent,
        Popular,
    };

    explicit RecentUsageModel(QObject *parent = nullptr, IncludeUsage usage = AppsAndDocs, int ordering = Recent);
    ~RecentUsageModel() override;

    QString description() const override;

    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;

    Q_INVOKABLE bool trigger(int row, const QString &actionId, const QVariant &argument) override;

    bool hasActions() const override;
    QVariantList actions() const override;

    void setShownItems(IncludeUsage usage);
    IncludeUsage shownItems() const;

    void setOrdering(int ordering);
    int ordering() const;

    void classBegin() override;
    void componentComplete() override;

Q_SIGNALS:
    void orderingChanged(int ordering);
    void shownItemsChanged();

private Q_SLOTS:
    void refresh() override;

private:
    QVariant appData(const QString &resource, int role) const;
    QVariant docData(const QString &resource, int role, const QString &mimeType) const;

    QString resourceAt(int row) const;
    QVariant rowValueAt(int row, KActivities::Stats::ResultModel::Roles role) const;

    QString forgetAllActionName() const;

    QModelIndex findPlaceForKFileItem(const KFileItem &fileItem) const;

    IncludeUsage m_usage;
    QPointer<QAbstractItemModel> m_activitiesModel;

    Ordering m_ordering;

    bool m_complete;
    KFilePlacesModel *m_placesModel;
};
