/*
 * Copyright (C) 2016-2024 Matthias Klumpp <matthias@tenstral.net>
 * Copyright (C) 2017 Jan Grulich <jgrulich@redhat.com>
 *
 * 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/>.
 */

#ifndef APPSTREAMQT_METADATA_H
#define APPSTREAMQT_METADATA_H

#include <QSharedDataPointer>
#include <QString>
#include <QObject>
#include "appstreamqt_export.h"

#include "component-box.h"

struct _AsMetadata;
namespace AppStream
{

class MetadataData;
class APPSTREAMQT_EXPORT Metadata
{
    Q_GADGET

public:
    enum FormatStyle {
        FormatStyleUnknown,
        FormatStyleMetainfo,
        FormatStyleCatalog,
    };
    Q_ENUM(FormatStyle)

    enum FormatKind {
        FormatKindUnknown,
        FormatKindXml,
        FormatKindYaml,
        FormatKindDesktopEntry
    };
    Q_ENUM(FormatKind)

    enum FormatVersion {
        FormatVersionUnknown,
        FormatVersionV10,
        FormatVersionV12
    };
    Q_ENUM(FormatVersion)

    enum MetadataError {
        /*
         * Needed to identify whether parsing was successful or not
         */
        MetadataErrorNoError = -1,
        MetadataErrorFailed,
        MetadataErrorParse,
        MetadataErrorFormatUnexpected,
        MetadataErrorNoComponent,
        MetadataErrorValueMissing
    };
    Q_ENUM(MetadataError)

    static FormatKind stringToFormatKind(const QString &kindString);
    static QString formatKindToString(FormatKind format);

    static FormatVersion stringToFormatVersion(const QString &formatVersionString);
    static QString formatVersionToString(FormatVersion version);

    Metadata();
    explicit Metadata(_AsMetadata *metadata);
    Metadata(const Metadata &metadata);
    ~Metadata();

    Metadata &operator=(const Metadata &metadata);
    bool operator==(const Metadata &r) const;

    /**
     * \returns the internally stored AsMetadata
     */
    _AsMetadata *cPtr() const;

    MetadataError parseFile(const QString &file, FormatKind format);

    MetadataError parse(const QString &data, FormatKind format);

    MetadataError parseDesktopData(const QString &cid, const QString &data);

    AppStream::Component component() const;
    ComponentBox components() const;
    void clearComponents();
    void addComponent(const AppStream::Component &component);

    QString componentToMetainfo(FormatKind format) const;

    MetadataError saveMetainfo(const QString &fname, FormatKind format);

    QString componentsToCatalog(FormatKind format) const;

    MetadataError saveCatalog(const QString &filename, FormatKind format);

    FormatVersion formatVersion() const;
    void setFormatVersion(FormatVersion formatVersion);

    FormatStyle formatStyle() const;
    void setFormatStyle(FormatStyle format);

    QString locale() const;
    void setLocale(const QString &locale);

    QString origin() const;
    void setOrigin(const QString &origin);

    bool updateExisting() const;
    void setUpdateExisting(bool updateExisting);

    bool writeHeader() const;
    void setWriteHeader(bool writeHeader);

    QString architecture() const;
    void setArchitecture(const QString &architecture);

    /**
     * \return The last error message received.
     */
    QString lastError() const;

private:
    QSharedDataPointer<MetadataData> d;
};
}

APPSTREAMQT_EXPORT QDebug operator<<(QDebug s, const AppStream::Metadata &metadata);

#endif // APPSTREAMQT_METADATA_H