File indexing completed on 2024-05-12 16:25:05

 // SPDX-FileCopyrightText: 2018-2019 Black Hat <bhat@encom.eu.org>
 // SPDX-License-Identifier: GPL-3.0-only
 
 #include "messageeventmodel.h"
 #include "messageeventmodel_logging.h"
 
 #include "neochatconfig.h"
 
 #include <Quotient/connection.h>
 #include <Quotient/csapi/rooms.h>
 #include <Quotient/events/reactionevent.h>
 #include <Quotient/events/redactionevent.h>
 #include <Quotient/events/roomavatarevent.h>
 #include <Quotient/events/roommemberevent.h>
 #include <Quotient/events/simplestateevents.h>
 #include <Quotient/user.h>
 
 #include "events/pollevent.h"
 #include <Quotient/events/stickerevent.h>
 
 #include <QDebug>
 #include <QGuiApplication>
 #include <QTimeZone>
 
 #include <KLocalizedString>
 
 #include "models/reactionmodel.h"
 #include "neochatuser.h"
 #include "texthandler.h"
 
 using namespace Quotient;
 
 QHash<int, QByteArray> MessageEventModel::roleNames() const
 {
     QHash<int, QByteArray> roles = QAbstractItemModel::roleNames();
     roles[DelegateTypeRole] = "delegateType";
     roles[PlainText] = "plainText";
     roles[EventIdRole] = "eventId";
     roles[TimeRole] = "time";
     roles[SectionRole] = "section";
     roles[AuthorRole] = "author";
     roles[ContentRole] = "content";
     roles[HighlightRole] = "isHighlighted";
     roles[SpecialMarksRole] = "marks";
     roles[ProgressInfoRole] = "progressInfo";
     roles[ShowLinkPreviewRole] = "showLinkPreview";
     roles[LinkPreviewRole] = "linkPreview";
     roles[MediaInfoRole] = "mediaInfo";
     roles[IsReplyRole] = "isReply";
     roles[ReplyAuthor] = "replyAuthor";
     roles[ReplyRole] = "reply";
     roles[ReplyIdRole] = "replyId";
     roles[ReplyMediaInfoRole] = "replyMediaInfo";
     roles[ShowAuthorRole] = "showAuthor";
     roles[ShowSectionRole] = "showSection";
     roles[ReadMarkersRole] = "readMarkers";
     roles[ExcessReadMarkersRole] = "excessReadMarkers";
     roles[ReadMarkersStringRole] = "readMarkersString";
     roles[ShowReadMarkersRole] = "showReadMarkers";
     roles[ReactionRole] = "reaction";
     roles[ShowReactionsRole] = "showReactions";
     roles[SourceRole] = "jsonSource";
     roles[MimeTypeRole] = "mimeType";
     roles[AuthorIdRole] = "authorId";
     roles[VerifiedRole] = "verified";
     roles[DisplayNameForInitialsRole] = "displayNameForInitials";
     roles[AuthorDisplayNameRole] = "authorDisplayName";
     roles[IsRedactedRole] = "isRedacted";
     roles[GenericDisplayRole] = "genericDisplay";
     roles[IsPendingRole] = "isPending";
     roles[LatitudeRole] = "latitude";
     roles[LongitudeRole] = "longitude";
     roles[AssetRole] = "asset";
     return roles;
 }
 
 MessageEventModel::MessageEventModel(QObject *parent)
     : QAbstractListModel(parent)
 {
     connect(static_cast<QGuiApplication *>(QGuiApplication::instance()), &QGuiApplication::paletteChanged, this, [this] {
         Q_EMIT dataChanged(index(0, 0), index(rowCount() - 1, 0), {AuthorRole, ReplyRole});
     });
 }
 
 NeoChatRoom *MessageEventModel::room() const
 {
     return m_currentRoom;
 }
 
 void MessageEventModel::setRoom(NeoChatRoom *room)
 {
     if (room == m_currentRoom) {
         return;
     }
 
     beginResetModel();
     if (m_currentRoom) {
         m_currentRoom->disconnect(this);
         m_linkPreviewers.clear();
         qDeleteAll(m_reactionModels);
         m_reactionModels.clear();
     }
 
     m_currentRoom = room;
     if (room) {
         m_lastReadEventIndex = QPersistentModelIndex(QModelIndex());
         room->setDisplayed();
 
         for (auto event = m_currentRoom->messageEvents().begin(); event != m_currentRoom->messageEvents().end(); ++event) {
             if (auto e = &*event->viewAs<RoomMessageEvent>()) {
                 createLinkPreviewerForEvent(e);
                 createReactionModelForEvent(e);
             }
         }
 
         if (m_currentRoom->timelineSize() < 10 && !room->allHistoryLoaded()) {
             room->getPreviousContent(50);
         }
         lastReadEventId = room->lastFullyReadEventId();
         connect(m_currentRoom, &NeoChatRoom::replyLoaded, this, [this](const auto &eventId, const auto &replyId) {
             Q_UNUSED(replyId);
             auto row = eventIdToRow(eventId);
             if (row == -1) {
                 return;
             }
             Q_EMIT dataChanged(index(row, 0), index(row, 0), {ReplyRole, ReplyMediaInfoRole, ReplyAuthor});
         });
 
         connect(m_currentRoom, &Room::aboutToAddNewMessages, this, [this](RoomEventsRange events) {
             for (auto &&event : events) {
                 const RoomMessageEvent *message = dynamic_cast<RoomMessageEvent *>(event.get());
                 if (message != nullptr) {
                     createLinkPreviewerForEvent(message);
                     createReactionModelForEvent(message);
 
                     if (NeoChatConfig::self()->showFancyEffects()) {
                         QString planBody = message->plainBody();
                         // snowflake
                         const QString snowlakeEmoji = QString::fromUtf8("\xE2\x9D\x84");
                         if (planBody.contains(snowlakeEmoji)) {
                             Q_EMIT fancyEffectsReasonFound(QStringLiteral("snowflake"));
                         }
                         // fireworks
                         const QString fireworksEmoji = QString::fromUtf8("\xF0\x9F\x8E\x86");
                         if (planBody.contains(fireworksEmoji)) {
                             Q_EMIT fancyEffectsReasonFound(QStringLiteral("fireworks"));
                         }
                         // sparkler
                         const QString sparklerEmoji = QString::fromUtf8("\xF0\x9F\x8E\x87");
                         if (planBody.contains(sparklerEmoji)) {
                             Q_EMIT fancyEffectsReasonFound(QStringLiteral("fireworks"));
                         }
                         // party pooper
                         const QString partyEmoji = QString::fromUtf8("\xF0\x9F\x8E\x89");
                         if (planBody.contains(partyEmoji)) {
                             Q_EMIT fancyEffectsReasonFound(QStringLiteral("confetti"));
                         }
                         // confetti ball
                         const QString confettiEmoji = QString::fromUtf8("\xF0\x9F\x8E\x8A");
                         if (planBody.contains(confettiEmoji)) {
                             Q_EMIT fancyEffectsReasonFound(QStringLiteral("confetti"));
                         }
                     }
                 }
             }
             m_initialized = true;
             beginInsertRows({}, timelineBaseIndex(), timelineBaseIndex() + int(events.size()) - 1);
         });
         connect(m_currentRoom, &Room::aboutToAddHistoricalMessages, this, [this](RoomEventsRange events) {
             for (auto &event : events) {
                 RoomMessageEvent *message = dynamic_cast<RoomMessageEvent *>(event.get());
                 if (message) {
                     createLinkPreviewerForEvent(message);
                     createReactionModelForEvent(message);
                 }
             }
             if (rowCount() > 0) {
                 rowBelowInserted = rowCount() - 1; // See #312
             }
             m_initialized = true;
             beginInsertRows({}, rowCount(), rowCount() + int(events.size()) - 1);
         });
         connect(m_currentRoom, &Room::addedMessages, this, [this](int lowest, int biggest) {
             if (m_initialized) {
                 endInsertRows();
             }
             if (!m_lastReadEventIndex.isValid()) {
                 // no read marker, so see if we need to create one.
                 moveReadMarker(m_currentRoom->lastFullyReadEventId());
             }
             if (biggest < m_currentRoom->maxTimelineIndex()) {
                 auto rowBelowInserted = m_currentRoom->maxTimelineIndex() - biggest + timelineBaseIndex() - 1;
                 refreshEventRoles(rowBelowInserted, {ShowAuthorRole});
             }
             for (auto i = m_currentRoom->maxTimelineIndex() - biggest; i <= m_currentRoom->maxTimelineIndex() - lowest; ++i) {
                 refreshLastUserEvents(i);
             }
         });
         connect(m_currentRoom, &Room::pendingEventAboutToAdd, this, [this] {
             m_initialized = true;
             beginInsertRows({}, 0, 0);
         });
         connect(m_currentRoom, &Room::pendingEventAdded, this, &MessageEventModel::endInsertRows);
         connect(m_currentRoom, &Room::pendingEventAboutToMerge, this, [this](RoomEvent *, int i) {
             Q_EMIT dataChanged(index(i, 0), index(i, 0), {IsPendingRole});
             if (i == 0) {
                 return; // No need to move anything, just refresh
             }
 
             movingEvent = true;
             // Reverse i because row 0 is bottommost in the model
             const auto row = timelineBaseIndex() - i - 1;
             beginMoveRows({}, row, row, {}, timelineBaseIndex());
         });
         connect(m_currentRoom, &Room::pendingEventMerged, this, [this] {
             if (movingEvent) {
                 endMoveRows();
                 movingEvent = false;
             }
             refreshRow(timelineBaseIndex()); // Refresh the looks
             refreshLastUserEvents(0);
             if (timelineBaseIndex() > 0) { // Refresh below, see #312
                 refreshEventRoles(timelineBaseIndex() - 1, {ShowAuthorRole});
             }
         });
         connect(m_currentRoom, &Room::pendingEventChanged, this, &MessageEventModel::refreshRow);
         connect(m_currentRoom, &Room::pendingEventAboutToDiscard, this, [this](int i) {
             beginRemoveRows({}, i, i);
         });
         connect(m_currentRoom, &Room::pendingEventDiscarded, this, &MessageEventModel::endRemoveRows);
         connect(m_currentRoom, &Room::fullyReadMarkerMoved, this, [this](const QString &fromEventId, const QString &toEventId) {
             Q_UNUSED(fromEventId);
             moveReadMarker(toEventId);
         });
         connect(m_currentRoom, &Room::replacedEvent, this, [this](const RoomEvent *newEvent) {
             refreshLastUserEvents(refreshEvent(newEvent->id()) - timelineBaseIndex());
         });
         connect(m_currentRoom, &Room::updatedEvent, this, [this](const QString &eventId) {
             if (eventId.isEmpty()) { // How did we get here?
                 return;
             }
             const auto eventIt = m_currentRoom->findInTimeline(eventId);
             if (eventIt != m_currentRoom->historyEdge()) {
                 createReactionModelForEvent(static_cast<const RoomMessageEvent *>(&**eventIt));
             }
             refreshEventRoles(eventId, {ReactionRole, ShowReactionsRole, Qt::DisplayRole});
         });
         connect(m_currentRoom, &Room::changed, this, [this]() {
             for (auto it = m_currentRoom->messageEvents().rbegin(); it != m_currentRoom->messageEvents().rend(); ++it) {
                 auto event = it->event();
                 refreshEventRoles(event->id(), {ReadMarkersRole, ReadMarkersStringRole, ExcessReadMarkersRole});
             }
         });
         connect(m_currentRoom, &Room::newFileTransfer, this, &MessageEventModel::refreshEvent);
         connect(m_currentRoom, &Room::fileTransferProgress, this, &MessageEventModel::refreshEvent);
         connect(m_currentRoom, &Room::fileTransferCompleted, this, &MessageEventModel::refreshEvent);
         connect(m_currentRoom, &Room::fileTransferFailed, this, &MessageEventModel::refreshEvent);
         connect(m_currentRoom->connection(), &Connection::ignoredUsersListChanged, this, [this] {
             beginResetModel();
             endResetModel();
         });
         qCDebug(MessageEvent) << "Connected to room" << room->id() << "as" << room->localUser()->id();
     } else {
         lastReadEventId.clear();
     }
     endResetModel();
 }
 
 int MessageEventModel::refreshEvent(const QString &eventId)
 {
     return refreshEventRoles(eventId);
 }
 
 void MessageEventModel::refreshRow(int row)
 {
     refreshEventRoles(row);
 }
 
 int MessageEventModel::timelineBaseIndex() const
 {
     return m_currentRoom ? int(m_currentRoom->pendingEvents().size()) : 0;
 }
 
 void MessageEventModel::refreshEventRoles(int row, const QVector<int> &roles)
 {
     const auto idx = index(row);
     Q_EMIT dataChanged(idx, idx, roles);
 }
 
 void MessageEventModel::moveReadMarker(const QString &toEventId)
 {
     const auto timelineIt = m_currentRoom->findInTimeline(toEventId);
     if (timelineIt == m_currentRoom->historyEdge()) {
         return;
     }
     int newRow = int(timelineIt - m_currentRoom->messageEvents().rbegin()) + timelineBaseIndex();
 
     if (!m_lastReadEventIndex.isValid()) {
         // Not valid index means we don't display any marker yet, in this case
         // we create the new index and insert the row in case the read marker
         // need to be displayed.
         if (newRow > timelineBaseIndex()) {
             // The user didn't read all the messages yet.
             m_initialized = true;
             beginInsertRows({}, newRow, newRow);
             m_lastReadEventIndex = QPersistentModelIndex(index(newRow, 0));
             endInsertRows();
             return;
         }
         // The user read all the messages and we didn't display any read marker yet
         // => do nothing
         return;
     }
     if (newRow <= timelineBaseIndex()) {
         // The user read all the messages => remove read marker
         beginRemoveRows({}, m_lastReadEventIndex.row(), m_lastReadEventIndex.row());
         m_lastReadEventIndex = QModelIndex();
         endRemoveRows();
         return;
     }
 
     // The user didn't read all the messages yet but moved the reader marker.
     beginMoveRows({}, m_lastReadEventIndex.row(), m_lastReadEventIndex.row(), {}, newRow);
     m_lastReadEventIndex = QPersistentModelIndex(index(newRow, 0));
     endMoveRows();
 }
 
 int MessageEventModel::refreshEventRoles(const QString &id, const QVector<int> &roles)
 {
     // On 64-bit platforms, difference_type for std containers is long long
     // but Qt uses int throughout its interfaces; hence casting to int below.
     int row = -1;
     // First try pendingEvents because it is almost always very short.
     const auto pendingIt = m_currentRoom->findPendingEvent(id);
     if (pendingIt != m_currentRoom->pendingEvents().end()) {
         row = int(pendingIt - m_currentRoom->pendingEvents().begin());
     } else {
         const auto timelineIt = m_currentRoom->findInTimeline(id);
         if (timelineIt == m_currentRoom->historyEdge()) {
             return -1;
         }
         row = int(timelineIt - m_currentRoom->messageEvents().rbegin()) + timelineBaseIndex();
         if (data(index(row, 0), DelegateTypeRole).toInt() == ReadMarker || data(index(row, 0), DelegateTypeRole).toInt() == Other) {
             row++;
         }
     }
     refreshEventRoles(row, roles);
     return row;
 }
 
 inline bool hasValidTimestamp(const Quotient::TimelineItem &ti)
 {
     return ti->originTimestamp().isValid();
 }
 
 QDateTime MessageEventModel::makeMessageTimestamp(const Quotient::Room::rev_iter_t &baseIt) const
 {
     const auto &timeline = m_currentRoom->messageEvents();
     auto ts = baseIt->event()->originTimestamp();
     if (ts.isValid()) {
         return ts;
     }
 
     // The event is most likely redacted or just invalid.
     // Look for the nearest date around and slap zero time to it.
     using Quotient::TimelineItem;
     auto rit = std::find_if(baseIt, timeline.rend(), hasValidTimestamp);
     if (rit != timeline.rend()) {
         return {rit->event()->originTimestamp().date(), {0, 0}, Qt::LocalTime};
     };
     auto it = std::find_if(baseIt.base(), timeline.end(), hasValidTimestamp);
     if (it != timeline.end()) {
         return {it->event()->originTimestamp().date(), {0, 0}, Qt::LocalTime};
     };
 
     // What kind of room is that?..
     qCCritical(MessageEvent) << "No valid timestamps in the room timeline!";
     return {};
 }
 
 void MessageEventModel::refreshLastUserEvents(int baseTimelineRow)
 {
     if (!m_currentRoom || m_currentRoom->timelineSize() <= baseTimelineRow) {
         return;
     }
 
     const auto &timelineBottom = m_currentRoom->messageEvents().rbegin();
     const auto &lastSender = (*(timelineBottom + baseTimelineRow))->senderId();
     const auto limit = timelineBottom + std::min(baseTimelineRow + 10, m_currentRoom->timelineSize());
     for (auto it = timelineBottom + std::max(baseTimelineRow - 10, 0); it != limit; ++it) {
         if ((*it)->senderId() == lastSender) {
             auto idx = index(it - timelineBottom);
             Q_EMIT dataChanged(idx, idx);
         }
     }
 }
 
 int MessageEventModel::rowCount(const QModelIndex &parent) const
 {
     if (!m_currentRoom || parent.isValid()) {
         return 0;
     }
 
     const auto firstIt = m_currentRoom->messageEvents().crbegin();
     if (firstIt != m_currentRoom->messageEvents().crend()) {
         const auto &firstEvt = **firstIt;
         return m_currentRoom->timelineSize() + (lastReadEventId != firstEvt.id() ? 1 : 0);
     } else {
         return m_currentRoom->timelineSize();
     }
 }
 
 bool MessageEventModel::canFetchMore(const QModelIndex &parent) const
 {
     Q_UNUSED(parent);
 
     return m_currentRoom && !m_currentRoom->eventsHistoryJob() && !m_currentRoom->allHistoryLoaded();
 }
 
 void MessageEventModel::fetchMore(const QModelIndex &parent)
 {
     Q_UNUSED(parent);
     if (m_currentRoom) {
         m_currentRoom->getPreviousContent(20);
     }
 }
 
 static LinkPreviewer *emptyLinkPreview = new LinkPreviewer;
 
 QVariant MessageEventModel::data(const QModelIndex &idx, int role) const
 {
     if (!checkIndex(idx, QAbstractItemModel::CheckIndexOption::IndexIsValid)) {
         return {};
     }
     const auto row = idx.row();
 
     if (!m_currentRoom || row < 0 || row >= int(m_currentRoom->pendingEvents().size()) + m_currentRoom->timelineSize()) {
         return {};
     };
 
     bool isPending = row < timelineBaseIndex();
 
     if (m_lastReadEventIndex.row() == row) {
         switch (role) {
         case DelegateTypeRole:
             return DelegateType::ReadMarker;
         case TimeRole: {
             const QDateTime eventDate = data(index(m_lastReadEventIndex.row() + 1, 0), TimeRole).toDateTime().toLocalTime();
             const KFormat format;
             return format.formatRelativeDateTime(eventDate, QLocale::ShortFormat);
         }
         }
         return {};
     }
 
     const auto timelineIt = m_currentRoom->messageEvents().crbegin()
         + std::max(0, row - timelineBaseIndex() - (m_lastReadEventIndex.isValid() && m_lastReadEventIndex.row() < row ? 1 : 0));
     const auto pendingIt = m_currentRoom->pendingEvents().crbegin() + std::min(row, timelineBaseIndex());
     const auto &evt = isPending ? **pendingIt : **timelineIt;
 
     if (role == Qt::DisplayRole) {
         if (evt.isRedacted()) {
             auto reason = evt.redactedBecause()->reason();
             return (reason.isEmpty()) ? i18n("<i>[This message was deleted]</i>")
                                       : i18n("<i>[This message was deleted: %1]</i>", evt.redactedBecause()->reason());
         }
 
         return m_currentRoom->eventToString(evt, Qt::RichText);
     }
 
     if (role == GenericDisplayRole) {
         if (evt.isRedacted()) {
             return i18n("<i>[This message was deleted]</i>");
         }
 
         return m_currentRoom->eventToGenericString(evt);
     }
 
     if (role == PlainText) {
         return m_currentRoom->eventToString(evt);
     }
 
     if (role == SourceRole) {
         return QJsonDocument(evt.fullJson()).toJson();
     }
 
     if (role == DelegateTypeRole) {
         if (auto e = eventCast<const RoomMessageEvent>(&evt)) {
             switch (e->msgtype()) {
             case MessageEventType::Emote:
                 return DelegateType::Emote;
             case MessageEventType::Notice:
                 return DelegateType::Notice;
             case MessageEventType::Image:
                 return DelegateType::Image;
             case MessageEventType::Audio:
                 return DelegateType::Audio;
             case MessageEventType::Video:
                 return DelegateType::Video;
             case MessageEventType::Location:
                 return DelegateType::Location;
             default:
                 break;
             }
             if (e->hasFileContent()) {
                 return DelegateType::File;
             }
 
             return DelegateType::Message;
         }
         if (is<const StickerEvent>(evt)) {
             return DelegateType::Sticker;
         }
         if (evt.isStateEvent()) {
             if (evt.matrixType() == "org.matrix.msc3672.beacon_info"_ls) {
                 return DelegateType::LiveLocation;
             }
             return DelegateType::State;
         }
         if (is<const EncryptedEvent>(evt)) {
             return DelegateType::Encrypted;
         }
         if (is<PollStartEvent>(evt)) {
             if (evt.isRedacted()) {
                 return DelegateType::Message;
             }
             return DelegateType::Poll;
         }
 
         return DelegateType::Other;
     }
 
     if (role == AuthorRole) {
         auto author = static_cast<NeoChatUser *>(isPending ? m_currentRoom->localUser() : m_currentRoom->user(evt.senderId()));
         return m_currentRoom->getUser(author);
     }
 
     if (role == ContentRole) {
         if (evt.isRedacted()) {
             auto reason = evt.redactedBecause()->reason();
             return (reason.isEmpty()) ? i18n("[REDACTED]") : i18n("[REDACTED: %1]").arg(evt.redactedBecause()->reason());
         }
 
         if (auto e = eventCast<const RoomMessageEvent>(&evt)) {
             if (e->msgtype() == Quotient::MessageEventType::Location) {
                 return e->contentJson();
             }
             // Cannot use e.contentJson() here because some
             // EventContent classes inject values into the copy of the
             // content JSON stored in EventContent::Base
             return e->hasFileContent() ? QVariant::fromValue(e->content()->originalJson) : QVariant();
         };
 
         if (auto e = eventCast<const StickerEvent>(&evt)) {
             return QVariant::fromValue(e->image().originalJson);
         }
         return evt.contentJson();
     }
 
     if (role == HighlightRole) {
         return !m_currentRoom->isDirectChat() && m_currentRoom->isEventHighlighted(&evt);
     }
 
     if (role == MimeTypeRole) {
         if (auto e = eventCast<const RoomMessageEvent>(&evt)) {
             if (!e || !e->hasFileContent()) {
                 return QVariant();
             }
 
             return e->content()->fileInfo()->mimeType.name();
         }
 
         if (auto e = eventCast<const StickerEvent>(&evt)) {
             return e->image().mimeType.name();
         }
     }
 
     if (role == SpecialMarksRole) {
         if (isPending) {
             // A pending event with an m.new_content key will be merged into the
             // original event so don't show.
             if (evt.contentJson().contains("m.new_content")) {
                 return EventStatus::Hidden;
             }
             return pendingIt->deliveryStatus();
         }
 
         if (evt.isStateEvent() && !NeoChatConfig::self()->showStateEvent()) {
             return EventStatus::Hidden;
         }
 
         if (auto roomMemberEvent = eventCast<const RoomMemberEvent>(&evt)) {
             if ((roomMemberEvent->isJoin() || roomMemberEvent->isLeave()) && !NeoChatConfig::self()->showLeaveJoinEvent()) {
                 return EventStatus::Hidden;
             } else if (roomMemberEvent->isRename() && !roomMemberEvent->isJoin() && !roomMemberEvent->isLeave() && !NeoChatConfig::self()->showRename()) {
                 return EventStatus::Hidden;
             } else if (roomMemberEvent->isAvatarUpdate() && !roomMemberEvent->isJoin() && !roomMemberEvent->isLeave()
                        && !NeoChatConfig::self()->showAvatarUpdate()) {
                 return EventStatus::Hidden;
             }
         }
 
         // isReplacement?
         if (auto e = eventCast<const RoomMessageEvent>(&evt))
             if (!e->replacedEvent().isEmpty())
                 return EventStatus::Hidden;
 
         if (is<RedactionEvent>(evt) || is<ReactionEvent>(evt)) {
             return EventStatus::Hidden;
         }
 
         if (evt.isStateEvent() && static_cast<const StateEvent &>(evt).repeatsState()) {
             return EventStatus::Hidden;
         }
 
         if (auto e = eventCast<const RoomMessageEvent>(&evt)) {
             if (!e->replacedEvent().isEmpty() && e->replacedEvent() != e->id()) {
                 return EventStatus::Hidden;
             }
         }
 
         if (m_currentRoom->connection()->isIgnored(m_currentRoom->user(evt.senderId()))) {
             return EventStatus::Hidden;
         }
 
         // hide ending live location beacons
         if (evt.isStateEvent() && evt.matrixType() == "org.matrix.msc3672.beacon_info"_ls && !evt.contentJson()["live"_ls].toBool()) {
             return EventStatus::Hidden;
         }
 
         return EventStatus::Normal;
     }
 
     if (role == EventIdRole) {
         return !evt.id().isEmpty() ? evt.id() : evt.transactionId();
     }
 
     if (role == ProgressInfoRole) {
         if (auto e = eventCast<const RoomMessageEvent>(&evt)) {
             if (e->hasFileContent()) {
                 return QVariant::fromValue(m_currentRoom->fileTransferInfo(e->id()));
             }
         }
         if (auto e = eventCast<const StickerEvent>(&evt)) {
             return QVariant::fromValue(m_currentRoom->fileTransferInfo(e->id()));
         }
     }
 
     if (role == TimeRole || role == SectionRole) {
         auto ts = isPending ? pendingIt->lastUpdated() : makeMessageTimestamp(timelineIt);
         return role == TimeRole ? QVariant(ts) : m_format.formatRelativeDate(ts.toLocalTime().date(), QLocale::ShortFormat);
     }
 
     if (role == ShowLinkPreviewRole) {
         return m_linkPreviewers.contains(evt.id());
     }
 
     if (role == LinkPreviewRole) {
         if (m_linkPreviewers.contains(evt.id())) {
             return QVariant::fromValue<LinkPreviewer *>(m_linkPreviewers[evt.id()]);
         } else {
             return QVariant::fromValue<LinkPreviewer *>(emptyLinkPreview);
         }
     }
 
     if (role == MediaInfoRole) {
         return getMediaInfoForEvent(evt);
     }
 
     if (role == IsReplyRole) {
         return !evt.contentJson()["m.relates_to"].toObject()["m.in_reply_to"].toObject()["event_id"].toString().isEmpty();
     }
 
     if (role == ReplyIdRole) {
         return evt.contentJson()["m.relates_to"].toObject()["m.in_reply_to"].toObject()["event_id"].toString();
     }
 
     if (role == ReplyAuthor) {
         auto replyPtr = m_currentRoom->getReplyForEvent(evt);
 
         if (replyPtr) {
             auto replyUser = static_cast<NeoChatUser *>(m_currentRoom->user(replyPtr->senderId()));
             return m_currentRoom->getUser(replyUser);
         } else {
             return m_currentRoom->getUser(nullptr);
         }
     }
 
     if (role == ReplyMediaInfoRole) {
         auto replyPtr = m_currentRoom->getReplyForEvent(evt);
         if (!replyPtr) {
             return {};
         }
         return getMediaInfoForEvent(*replyPtr);
     }
 
     if (role == ReplyRole) {
         auto replyPtr = m_currentRoom->getReplyForEvent(evt);
         if (!replyPtr) {
             return {};
         }
 
         DelegateType type;
         if (auto e = eventCast<const RoomMessageEvent>(replyPtr)) {
             switch (e->msgtype()) {
             case MessageEventType::Emote:
                 type = DelegateType::Emote;
                 break;
             case MessageEventType::Notice:
                 type = DelegateType::Notice;
                 break;
             case MessageEventType::Image:
                 type = DelegateType::Image;
                 break;
             case MessageEventType::Audio:
                 type = DelegateType::Audio;
                 break;
             case MessageEventType::Video:
                 type = DelegateType::Video;
                 break;
             default:
                 if (e->hasFileContent()) {
                     type = DelegateType::File;
                     break;
                 }
                 type = DelegateType::Message;
             }
 
         } else if (is<const StickerEvent>(*replyPtr)) {
             type = DelegateType::Sticker;
         } else {
             type = DelegateType::Other;
         }
 
         return QVariantMap{
             {"display", m_currentRoom->eventToString(*replyPtr, Qt::RichText)},
             {"type", type},
         };
     }
 
     if (role == ShowAuthorRole) {
         for (auto r = row + 1; r < rowCount(); ++r) {
             auto i = index(r);
             // Note !itemData(i).empty() is a check for instances where rows have been removed, e.g. when the read marker is moved.
             // While the row is removed the subsequent row indexes are not changed so we need to skip over the removed index.
             // See - https://doc.qt.io/qt-5/qabstractitemmodel.html#beginRemoveRows
             if (data(i, SpecialMarksRole) != EventStatus::Hidden && !itemData(i).empty()) {
                 return data(i, AuthorRole) != data(idx, AuthorRole) || data(i, DelegateTypeRole) == MessageEventModel::State
                     || data(i, TimeRole).toDateTime().msecsTo(data(idx, TimeRole).toDateTime()) > 600000
                     || data(i, TimeRole).toDateTime().toLocalTime().date().day() != data(idx, TimeRole).toDateTime().toLocalTime().date().day();
             }
         }
 
         return true;
     }
 
     if (role == ShowSectionRole) {
         for (auto r = row + 1; r < rowCount(); ++r) {
             auto i = index(r);
             // Note !itemData(i).empty() is a check for instances where rows have been removed, e.g. when the read marker is moved.
             // While the row is removed the subsequent row indexes are not changed so we need to skip over the removed index.
             // See - https://doc.qt.io/qt-5/qabstractitemmodel.html#beginRemoveRows
             if (data(i, SpecialMarksRole) != EventStatus::Hidden && !itemData(i).empty()) {
                 const auto day = data(idx, TimeRole).toDateTime().toLocalTime().date().dayOfYear();
                 const auto previousEventDay = data(i, TimeRole).toDateTime().toLocalTime().date().dayOfYear();
                 return day != previousEventDay;
             }
         }
 
         return false;
     }
 
     if (role == LatitudeRole) {
         const auto geoUri = evt.contentJson()["geo_uri"_ls].toString();
         if (geoUri.isEmpty()) {
             return {};
         }
         const auto latitude = geoUri.split(u';')[0].split(u':')[1].split(u',')[0];
         return latitude.toFloat();
     }
 
     if (role == LongitudeRole) {
         const auto geoUri = evt.contentJson()["geo_uri"_ls].toString();
         if (geoUri.isEmpty()) {
             return {};
         }
         const auto latitude = geoUri.split(u';')[0].split(u':')[1].split(u',')[1];
         return latitude.toFloat();
     }
 
     if (role == AssetRole) {
         const auto assetType = evt.contentJson()["org.matrix.msc3488.asset"].toObject()["type"].toString();
         if (assetType.isEmpty()) {
             return {};
         }
         return assetType;
     }
 
     if (role == ReadMarkersRole) {
         auto userIds_temp = room()->userIdsAtEvent(evt.id());
         userIds_temp.remove(m_currentRoom->localUser()->id());
 
         auto userIds = userIds_temp.values();
         if (userIds.count() > 5) {
             userIds = userIds.mid(0, 5);
         }
 
         QVariantList users;
         users.reserve(userIds.size());
         for (const auto &userId : userIds) {
             auto user = static_cast<NeoChatUser *>(m_currentRoom->user(userId));
             users += m_currentRoom->getUser(user);
         }
 
         return users;
     }
 
     if (role == ExcessReadMarkersRole) {
         auto userIds = room()->userIdsAtEvent(evt.id());
         userIds.remove(m_currentRoom->localUser()->id());
 
         if (userIds.count() > 5) {
             return QStringLiteral("+ ") + QString::number(userIds.count() - 5);
         } else {
             return QString();
         }
     }
 
     if (role == ReadMarkersStringRole) {
         auto userIds = room()->userIdsAtEvent(evt.id());
         userIds.remove(m_currentRoom->localUser()->id());
 
         /**
          * The string ends up in the form
          * "x users: user1DisplayName, user2DisplayName, etc."
          */
         QString readMarkersString = i18np("1 user: ", "%1 users: ", userIds.size());
         for (const auto &userId : userIds) {
             auto user = static_cast<NeoChatUser *>(m_currentRoom->user(userId));
             readMarkersString += user->displayname(m_currentRoom) + i18nc("list separator", ", ");
         }
         readMarkersString.chop(2);
         return readMarkersString;
     }
 
     if (role == ShowReadMarkersRole) {
         auto userIds = room()->userIdsAtEvent(evt.id());
         userIds.remove(m_currentRoom->localUser()->id());
         return userIds.size() > 0;
     }
 
     if (role == ReactionRole) {
         if (m_reactionModels.contains(evt.id())) {
             return QVariant::fromValue<ReactionModel *>(m_reactionModels[evt.id()]);
         } else {
             return QVariantList();
         }
     }
 
     if (role == ShowReactionsRole) {
         return m_reactionModels.contains(evt.id());
     }
 
     if (role == AuthorIdRole) {
         return evt.senderId();
     }
 
     if (role == VerifiedRole) {
 #ifdef Quotient_E2EE_ENABLED
         if (evt.originalEvent()) {
             auto encrypted = dynamic_cast<const EncryptedEvent *>(evt.originalEvent());
             Q_ASSERT(encrypted);
             return m_currentRoom->connection()->isVerifiedSession(encrypted->sessionId().toLatin1());
         }
 #endif
         return false;
     }
 
     if (role == DisplayNameForInitialsRole) {
         auto user = static_cast<NeoChatUser *>(isPending ? m_currentRoom->localUser() : m_currentRoom->user(evt.senderId()));
         return user->displayname(m_currentRoom).remove(QStringLiteral(" (%1)").arg(user->id()));
     }
 
     if (role == AuthorDisplayNameRole) {
         if (is<RoomMemberEvent>(evt) && !evt.unsignedJson()["prev_content"]["displayname"].isNull() && evt.stateKey() == evt.senderId()) {
             auto previousDisplayName = evt.unsignedJson()["prev_content"]["displayname"].toString().toHtmlEscaped();
             if (previousDisplayName.isEmpty()) {
                 previousDisplayName = evt.senderId();
             }
             return previousDisplayName;
         } else {
             auto author = static_cast<NeoChatUser *>(isPending ? m_currentRoom->localUser() : m_currentRoom->user(evt.senderId()));
             return m_currentRoom->htmlSafeMemberName(author->id());
         }
     }
 
     if (role == IsRedactedRole) {
         return evt.isRedacted();
     }
 
     if (role == IsPendingRole) {
         return row < static_cast<int>(m_currentRoom->pendingEvents().size());
     }
 
     return {};
 }
 
 int MessageEventModel::eventIdToRow(const QString &eventID) const
 {
     const auto it = m_currentRoom->findInTimeline(eventID);
     if (it == m_currentRoom->historyEdge()) {
         // qWarning() << "Trying to find inexistent event:" << eventID;
         return -1;
     }
     return it - m_currentRoom->messageEvents().rbegin() + timelineBaseIndex();
 }
 
 QVariantMap MessageEventModel::getMediaInfoForEvent(const RoomEvent &event) const
 {
     QVariantMap mediaInfo;
 
     QString eventId = event.id();
 
     // Get the file info for the event.
     const EventContent::FileInfo *fileInfo;
     if (event.is<RoomMessageEvent>()) {
         auto roomMessageEvent = eventCast<const RoomMessageEvent>(&event);
         if (!roomMessageEvent->hasFileContent()) {
             return {};
         }
         fileInfo = roomMessageEvent->content()->fileInfo();
     } else if (event.is<StickerEvent>()) {
         auto stickerEvent = eventCast<const StickerEvent>(&event);
         fileInfo = &stickerEvent->image();
     } else {
         return {};
     }
 
     return getMediaInfoFromFileInfo(fileInfo, eventId);
 }
 
 QVariantMap MessageEventModel::getMediaInfoFromFileInfo(const EventContent::FileInfo *fileInfo, const QString &eventId, bool isThumbnail) const
 {
     QVariantMap mediaInfo;
 
     // Get the mxc URL for the media.
     if (!fileInfo->url().isValid() || fileInfo->url().scheme() != QStringLiteral("mxc") || eventId.isEmpty()) {
         mediaInfo["source"] = QUrl();
     } else {
         QUrl source = m_currentRoom->makeMediaUrl(eventId, fileInfo->url());
 
         if (source.isValid()) {
             mediaInfo["source"] = source;
         } else {
             mediaInfo["source"] = QUrl();
         }
     }
 
     auto mimeType = fileInfo->mimeType;
     // Add the MIME type for the media if available.
     mediaInfo["mimeType"] = mimeType.name();
 
     // Add the MIME type icon if available.
     mediaInfo["mimeIcon"] = mimeType.iconName();
 
     // Add media size if available.
     mediaInfo["size"] = fileInfo->payloadSize;
 
     // Add parameter depending on media type.
     if (mimeType.name().contains(QStringLiteral("image"))) {
         if (auto castInfo = static_cast<const EventContent::ImageContent *>(fileInfo)) {
             mediaInfo["width"] = castInfo->imageSize.width();
             mediaInfo["height"] = castInfo->imageSize.height();
 
             if (!isThumbnail) {
                 QVariantMap tempInfo;
                 auto thumbnailInfo = getMediaInfoFromFileInfo(castInfo->thumbnailInfo(), eventId, true);
                 if (thumbnailInfo["source"].toUrl().scheme() == "mxc") {
                     tempInfo = thumbnailInfo;
                 } else {
                     QString blurhash = castInfo->originalInfoJson["xyz.amorgan.blurhash"].toString();
                     if (blurhash.isEmpty()) {
                         tempInfo["source"] = QUrl();
                     } else {
                         tempInfo["source"] = QUrl("image://blurhash/" + blurhash);
                     }
                 }
                 mediaInfo["tempInfo"] = tempInfo;
             }
         }
     }
     if (mimeType.name().contains(QStringLiteral("video"))) {
         if (auto castInfo = static_cast<const EventContent::VideoContent *>(fileInfo)) {
             mediaInfo["width"] = castInfo->imageSize.width();
             mediaInfo["height"] = castInfo->imageSize.height();
             mediaInfo["duration"] = castInfo->duration;
 
             if (!isThumbnail) {
                 QVariantMap tempInfo;
                 auto thumbnailInfo = getMediaInfoFromFileInfo(castInfo->thumbnailInfo(), eventId, true);
                 if (thumbnailInfo["source"].toUrl().scheme() == "mxc") {
                     tempInfo = thumbnailInfo;
                 } else {
                     QString blurhash = castInfo->originalInfoJson["xyz.amorgan.blurhash"].toString();
                     if (blurhash.isEmpty()) {
                         tempInfo["source"] = QUrl();
                     } else {
                         tempInfo["source"] = QUrl("image://blurhash/" + blurhash);
                     }
                 }
                 mediaInfo["tempInfo"] = tempInfo;
             }
         }
     }
     if (mimeType.name().contains(QStringLiteral("audio"))) {
         if (auto castInfo = static_cast<const EventContent::AudioContent *>(fileInfo)) {
             mediaInfo["duration"] = castInfo->duration;
         }
     }
 
     return mediaInfo;
 }
 
 void MessageEventModel::createLinkPreviewerForEvent(const Quotient::RoomMessageEvent *event)
 {
     if (m_linkPreviewers.contains(event->id())) {
         return;
     } else {
         QString text;
         if (event->hasTextContent()) {
             auto textContent = static_cast<const EventContent::TextContent *>(event->content());
             if (textContent) {
                 text = textContent->body;
             } else {
                 text = event->plainBody();
             }
         } else {
             text = event->plainBody();
         }
         TextHandler textHandler;
         textHandler.setData(text);
 
         QList<QUrl> links = textHandler.getLinkPreviews();
         if (links.size() > 0) {
             m_linkPreviewers[event->id()] = new LinkPreviewer(nullptr, m_currentRoom, links.size() > 0 ? links[0] : QUrl());
         }
     }
 }
 
 void MessageEventModel::createReactionModelForEvent(const Quotient::RoomMessageEvent *event)
 {
     if (event == nullptr) {
         return;
     }
     auto eventId = event->id();
     const auto &annotations = m_currentRoom->relatedEvents(eventId, EventRelation::AnnotationType);
     if (annotations.isEmpty()) {
         if (m_reactionModels.contains(eventId)) {
             delete m_reactionModels[eventId];
             m_reactionModels.remove(eventId);
         }
         return;
     };
 
     QMap<QString, QList<NeoChatUser *>> reactions = {};
     for (const auto &a : annotations) {
         if (a->isRedacted()) { // Just in case?
             continue;
         }
         if (const auto &e = eventCast<const ReactionEvent>(a)) {
             reactions[e->key()].append(static_cast<NeoChatUser *>(m_currentRoom->user(e->senderId())));
         }
     }
 
     if (reactions.isEmpty()) {
         if (m_reactionModels.contains(eventId)) {
             delete m_reactionModels[eventId];
             m_reactionModels.remove(eventId);
         }
         return;
     }
 
     QList<ReactionModel::Reaction> res;
     auto i = reactions.constBegin();
     while (i != reactions.constEnd()) {
         QVariantList authors;
         for (const auto &author : i.value()) {
             authors.append(m_currentRoom->getUser(author));
         }
 
         res.append(ReactionModel::Reaction{i.key(), authors});
         ++i;
     }
 
     if (m_reactionModels.contains(eventId)) {
         m_reactionModels[eventId]->setReactions(res);
     } else if (res.size() > 0) {
         m_reactionModels[eventId] = new ReactionModel(this, res, static_cast<NeoChatUser *>(m_currentRoom->localUser()));
     } else {
         if (m_reactionModels.contains(eventId)) {
             delete m_reactionModels[eventId];
             m_reactionModels.remove(eventId);
         }
     }
 }
 
 #include "moc_messageeventmodel.cpp"