#include <utility>

/******************************************************************************
 * Copyright (C) 2018 Kitsune Ral <kitsune-ral@users.sf.net>
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#pragma once

#include "event.h"
#include "eventcontent.h"
#include "converters.h"

namespace QMatrixClient
{
    constexpr const char* FavouriteTag = "m.favourite";
    constexpr const char* LowPriorityTag = "m.lowpriority";

    struct TagRecord
    {
        TagRecord (QString order = {}) : order(std::move(order)) { }
        explicit TagRecord(const QJsonValue& jv)
            : order(jv.toObject().value("order"_ls).toString())
        { }

        QString order;

        bool operator==(const TagRecord& other) const
            { return order == other.order; }
        bool operator!=(const TagRecord& other) const
            { return !operator==(other); }
    };

    inline QJsonValue toJson(const TagRecord& rec)
    {
        return QJsonObject {{ QStringLiteral("order"), rec.order }};
    }

    using TagsMap = QHash<QString, TagRecord>;

#define DEFINE_SIMPLE_EVENT(_Name, _TypeId, _ContentType, _ContentKey) \
    class _Name : public Event \
    { \
        public: \
            using content_type = _ContentType; \
            DEFINE_EVENT_TYPEID(_TypeId, _Name) \
            explicit _Name(QJsonObject obj) \
                : Event(typeId(), std::move(obj)) \
            { } \
            explicit _Name(_ContentType content) \
                : Event(typeId(), matrixTypeId(), \
                        QJsonObject { { QStringLiteral(#_ContentKey), \
                                        toJson(std::move(content)) } }) \
            { } \
            auto _ContentKey() const \
            { return fromJson<content_type>(contentJson()[#_ContentKey##_ls]); } \
    }; \
    REGISTER_EVENT_TYPE(_Name) \
    // End of macro

    DEFINE_SIMPLE_EVENT(TagEvent, "m.tag", TagsMap, tags)
    DEFINE_SIMPLE_EVENT(ReadMarkerEvent, "m.fully_read", QString, event_id)
    DEFINE_SIMPLE_EVENT(IgnoredUsersEvent, "m.ignored_user_list",
                        QSet<QString>, ignored_users)

    DEFINE_EVENTTYPE_ALIAS(Tag, TagEvent)
    DEFINE_EVENTTYPE_ALIAS(ReadMarker, ReadMarkerEvent)
}