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room-model.cpp
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room-model.cpp
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/*
* Copyright (C) 2020 Tusooa Zhu
*
* This file is part of libkazv.
*
* libkazv is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* libkazv 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with libkazv. If not, see <https://www.gnu.org/licenses/>.
*/
#include <lager/util.hpp>
#include <zug/sequence.hpp>
#include <zug/transducer/map.hpp>
#include "room-model.hpp"
#include "cursorutil.hpp"
namespace Kazv
{
RoomModel RoomModel::update(RoomModel r, Action a)
{
return lager::match(std::move(a))(
[&](AddStateEventsAction a) {
r.stateEvents = merge(std::move(r.stateEvents), a.stateEvents, keyOfState);
return r;
},
[&](AppendTimelineAction a) {
auto eventIds = intoImmer(immer::flex_vector<std::string>(),
zug::map(keyOfTimeline), a.events);
r.timeline = r.timeline + eventIds;
r.messages = merge(std::move(r.messages), a.events, keyOfTimeline);
return r;
},
[&](PrependTimelineAction a) {
auto eventIds = intoImmer(immer::flex_vector<std::string>(),
zug::map(keyOfTimeline), a.events);
r.timeline = eventIds + r.timeline;
r.messages = merge(std::move(r.messages), a.events, keyOfTimeline);
r.paginateBackToken = a.paginateBackToken;
// if there are no more events we should not allow further paginating
r.canPaginateBack = a.events.size() != 0;
return r;
},
[&](AddAccountDataAction a) {
r.accountData = merge(std::move(r.accountData), a.events, keyOfAccountData);
return r;
},
[&](ChangeMembershipAction a) {
r.membership = a.membership;
return r;
},
[&](ChangeInviteStateAction a) {
r.inviteState = merge(immer::map<KeyOfState, Event>{}, a.events, keyOfState);
return r;
},
[&](AddEphemeralAction a) {
r.ephemeral = merge(std::move(r.ephemeral), a.events, keyOfEphemeral);
return r;
}
);
}
RoomListModel RoomListModel::update(RoomListModel l, Action a)
{
return lager::match(std::move(a))(
[=](UpdateRoomAction a) mutable {
l.rooms = std::move(l.rooms)
.update(a.roomId,
[=](RoomModel oldRoom) {
oldRoom.roomId = a.roomId; // in case it is a new room
return RoomModel::update(std::move(oldRoom), a.roomAction);
});
return l;
}
);
}
}

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