/*
 * Copyright (C) 2021-2024 Matthias Klumpp <matthias@tenstral.net>
 *
 * Licensed under the GNU Lesser General Public License Version 2.1
 *
 * This library is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 2.1 of the license, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <QSharedDataPointer>
#include <QString>
#include <QObject>

#include "appstreamqt_export.h"
#include "relation-check-result.h"

struct _AsRelation;

namespace AppStream
{

class Pool;
class SystemInfo;
class RelationData;

/**
 * Description of relations a software component has with other components and entities.
 */
class APPSTREAMQT_EXPORT Relation
{
    Q_GADGET

public:
    enum Kind {
        KindUnknown,
        KindRequires,
        KindRecommends,
        KindSupports
    };
    Q_ENUM(Kind)

    enum ItemKind {
        ItemKindUnknown,
        ItemKindId,
        ItemKindModalias,
        ItemKindKernel,
        ItemKindMemory,
        ItemKindFirmware,
        ItemKindControl,
        ItemKindDisplayLength
    };
    Q_ENUM(ItemKind)

    enum Compare {
        CompareUnknown,
        CompareEq,
        CompareNe,
        CompareLt,
        CompareGt,
        CompareLe,
        CompareGe
    };
    Q_ENUM(Compare)

    enum ControlKind {
        ControlKindUnknown,
        ControlKindPointing,
        ControlKindKeyboard,
        ControlKindConsole,
        ControlKindTouch,
        ControlKindGamepad,
        ControlKindVoice,
        ControlKindVision,
        ControlKindTvRemote
    };
    Q_ENUM(ControlKind)

    enum DisplaySideKind {
        DisplaySideKindUnknown,
        DisplaySideKindShortest,
        DisplaySideKindLongest
    };
    Q_ENUM(DisplaySideKind)

    static QString kindToString(Kind kind);
    static Kind stringToKind(const QString &string);

    static QString itemKindToString(ItemKind ikind);
    static ItemKind stringToItemKind(const QString &string);

    static Compare stringToCompare(const QString &string);
    static QString compareToString(Compare cmp);
    static QString compareToSymbolsString(Compare cmp);

    static QString controlKindToString(ControlKind ckind);
    static ControlKind controlKindFromString(const QString &string);

    static QString displaySideKindToString(DisplaySideKind kind);
    static DisplaySideKind stringToDisplaySideKind(const QString &string);

    Relation();
    Relation(_AsRelation *relation);
    Relation(const Relation &relation);
    ~Relation();

    Relation &operator=(const Relation &relation);
    bool operator==(const Relation &r) const;

    /**
     * \returns the internally stored AsRelation
     */
    _AsRelation *cPtr() const;

    Kind kind() const;
    void setKind(Kind kind);

    ItemKind itemKind() const;
    void setItemKind(ItemKind kind);

    Compare compare() const;
    void setCompare(Compare compare);

    QString version() const;
    void setVersion(const QString &version);

    QString valueStr() const;
    void setValueStr(const QString &value);

    int valueInt() const;
    void setValueInt(int value);

    ControlKind valueControlKind() const;
    void setValueControlKind(ControlKind kind);

    DisplaySideKind displaySideKind() const;
    void setDisplaySideKind(DisplaySideKind kind);

    int valuePx() const;
    void setValuePx(int logicalPx);

    bool versionCompare(const QString &version);

    std::optional<RelationCheckResult> isSatisfied(SystemInfo *sysInfo, Pool *pool);

    QString lastError() const;

private:
    QSharedDataPointer<RelationData> d;
};
}

APPSTREAMQT_EXPORT QDebug operator<<(QDebug s, const AppStream::Relation &relation);