// SPDX-FileCopyrightText: 2023 James Graham <james.h.graham@protonmail.com>
// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL

#include "eventhandler.h"

#include <QMovie>

#include <KFormat>
#include <KLocalizedString>

#include <Quotient/events/encryptionevent.h>
#include <Quotient/events/event.h>
#include <Quotient/events/reactionevent.h>
#include <Quotient/events/redactionevent.h>
#include <Quotient/events/roomavatarevent.h>
#include <Quotient/events/roomcanonicalaliasevent.h>
#include <Quotient/events/roomevent.h>
#include <Quotient/events/roommemberevent.h>
#include <Quotient/events/roompowerlevelsevent.h>
#include <Quotient/events/simplestateevents.h>
#include <Quotient/events/stickerevent.h>
#include <Quotient/quotient_common.h>
#include <Quotient/roommember.h>

#include "eventhandler_logging.h"
#include "events/locationbeaconevent.h"
#include "events/pollevent.h"
#include "events/widgetevent.h"
#include "neochatconfig.h"
#include "neochatroom.h"
#include "texthandler.h"
#include "utils.h"

using namespace Quotient;

QString EventHandler::id(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "id called with event set to nullptr.";
        return {};
    }

    return !event->id().isEmpty() ? event->id() : event->transactionId();
}

QString EventHandler::authorDisplayName(const NeoChatRoom *room, const Quotient::RoomEvent *event, bool isPending)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "authorDisplayName called with room set to nullptr.";
        return {};
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "authorDisplayName called with event set to nullptr.";
        return {};
    }

    if (is<RoomMemberEvent>(*event) && !event->unsignedJson()[QStringLiteral("prev_content")][QStringLiteral("displayname")].isNull()
        && event->stateKey() == event->senderId()) {
        auto previousDisplayName = event->unsignedJson()[QStringLiteral("prev_content")][QStringLiteral("displayname")].toString().toHtmlEscaped();
        if (previousDisplayName.isEmpty()) {
            previousDisplayName = event->senderId();
        }
        return previousDisplayName;
    } else {
        const auto author = isPending ? room->localMember() : room->member(event->senderId());
        return author.htmlSafeDisplayName();
    }
}

QString EventHandler::singleLineAuthorDisplayname(const NeoChatRoom *room, const Quotient::RoomEvent *event, bool isPending)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "singleLineAuthorDisplayname called with room set to nullptr.";
        return {};
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "singleLineAuthorDisplayname called with event set to nullptr.";
        return {};
    }

    const auto author = isPending ? room->localMember() : room->member(event->senderId());
    auto displayName = author.displayName();
    displayName.replace(QStringLiteral("<br>\n"), QStringLiteral(" "));
    displayName.replace(QStringLiteral("<br>"), QStringLiteral(" "));
    displayName.replace(QStringLiteral("<br />\n"), QStringLiteral(" "));
    displayName.replace(QStringLiteral("<br />"), QStringLiteral(" "));
    displayName.replace(u'\n', QStringLiteral(" "));
    displayName.replace(u'\u2028', QStringLiteral(" "));
    return displayName;
}

QDateTime EventHandler::time(const Quotient::RoomEvent *event, bool isPending, QDateTime lastUpdated)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "time called with event set to nullptr.";
        return {};
    }
    if (isPending && lastUpdated == QDateTime()) {
        qCWarning(EventHandling) << "a value must be provided for lastUpdated for a pending event.";
        return {};
    }

    return isPending ? lastUpdated : event->originTimestamp();
}

QString EventHandler::timeString(const Quotient::RoomEvent *event, bool relative, QLocale::FormatType format, bool isPending, QDateTime lastUpdated)
{
    auto ts = time(event, isPending, lastUpdated);
    if (ts.isValid()) {
        if (relative) {
            KFormat formatter;
            return formatter.formatRelativeDate(ts.toLocalTime().date(), format);
        } else {
            return QLocale().toString(ts.toLocalTime().time(), format);
        }
    }
    return {};
}

QString EventHandler::timeString(const Quotient::RoomEvent *event, const QString &format, bool isPending, const QDateTime &lastUpdated)
{
    return time(event, isPending, lastUpdated).toLocalTime().toString(format);
}

bool EventHandler::isHighlighted(const NeoChatRoom *room, const Quotient::RoomEvent *event)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "isHighlighted called with room set to nullptr.";
        return false;
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "isHighlighted called with event set to nullptr.";
        return false;
    }

    return !room->isDirectChat() && room->isEventHighlighted(event);
}

bool EventHandler::isHidden(const NeoChatRoom *room, const Quotient::RoomEvent *event)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "isHidden called with room set to nullptr.";
        return false;
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "isHidden called with event set to nullptr.";
        return false;
    }

    if (event->isStateEvent() && !NeoChatConfig::self()->showStateEvent()) {
        return true;
    }

    if (auto roomMemberEvent = eventCast<const RoomMemberEvent>(event)) {
        if ((roomMemberEvent->isJoin() || roomMemberEvent->isLeave()) && !NeoChatConfig::self()->showLeaveJoinEvent()) {
            return true;
        } else if (roomMemberEvent->isRename() && !roomMemberEvent->isJoin() && !roomMemberEvent->isLeave() && !NeoChatConfig::self()->showRename()) {
            return true;
        } else if (roomMemberEvent->isAvatarUpdate() && !roomMemberEvent->isJoin() && !roomMemberEvent->isLeave()
                   && !NeoChatConfig::self()->showAvatarUpdate()) {
            return true;
        }
    }

    if (event->isStateEvent() && eventCast<const StateEvent>(event)->repeatsState()) {
        return true;
    }

    // isReplacement?
    if (auto e = eventCast<const RoomMessageEvent>(event)) {
        if (!e->replacedEvent().isEmpty()) {
            return true;
        }
    }

    if (is<RedactionEvent>(*event) || is<ReactionEvent>(*event)) {
        return true;
    }

    if (auto e = eventCast<const RoomMessageEvent>(event)) {
        if (!e->replacedEvent().isEmpty() && e->replacedEvent() != e->id()) {
            return true;
        }
    }

    if (room->connection()->isIgnored(event->senderId())) {
        return true;
    }

    // hide ending live location beacons
    if (event->isStateEvent() && event->matrixType() == "org.matrix.msc3672.beacon_info"_ls && !event->contentJson()["live"_ls].toBool()) {
        return true;
    }

    return false;
}

Qt::TextFormat EventHandler::messageBodyInputFormat(const Quotient::RoomMessageEvent &event)
{
    if (event.mimeType().name() == "text/plain"_ls) {
        return Qt::PlainText;
    } else {
        return Qt::RichText;
    }
}

QString EventHandler::rawMessageBody(const Quotient::RoomMessageEvent &event)
{
    QString body;

    if (event.hasFileContent()) {
        // if filename is given or body is equal to filename,
        // then body is a caption
        QString filename = event.content()->fileInfo()->originalName;
        QString body = event.plainBody();
        if (filename.isEmpty() || filename == body) {
            return QString();
        }
        return body;
    }

    if (event.hasTextContent() && event.content()) {
        body = static_cast<const EventContent::TextContent *>(event.content())->body;
    } else {
        body = event.plainBody();
    }
    return body;
}

QString EventHandler::richBody(const NeoChatRoom *room, const Quotient::RoomEvent *event, bool stripNewlines)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "richBody called with room set to nullptr.";
        return {};
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "richBody called with event set to nullptr.";
        return {};
    }
    return getBody(room, event, Qt::RichText, stripNewlines);
}

QString EventHandler::plainBody(const NeoChatRoom *room, const Quotient::RoomEvent *event, bool stripNewlines)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "plainBody called with room set to nullptr.";
        return {};
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "plainBody called with event set to nullptr.";
        return {};
    }
    return getBody(room, event, Qt::PlainText, stripNewlines);
}

QString EventHandler::markdownBody(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "markdownBody called with event set to nullptr.";
        return {};
    }

    if (!event->is<RoomMessageEvent>()) {
        qCWarning(EventHandling) << "markdownBody called when event isn't a RoomMessageEvent.";
        return {};
    }

    const auto roomMessageEvent = eventCast<const RoomMessageEvent>(event);

    QString plainBody = roomMessageEvent->plainBody();
    plainBody.remove(TextRegex::removeReply);
    return plainBody;
}

QString EventHandler::getBody(const NeoChatRoom *room, const Quotient::RoomEvent *event, Qt::TextFormat format, bool stripNewlines)
{
    if (event->isRedacted()) {
        auto reason = event->redactedBecause()->reason();
        return (reason.isEmpty()) ? i18n("<i>[This message was deleted]</i>") : i18n("<i>[This message was deleted: %1]</i>", reason);
    }

    const bool prettyPrint = (format == Qt::RichText);

    return switchOnType(
        *event,
        [room, format, stripNewlines](const RoomMessageEvent &event) {
            return getMessageBody(room, event, format, stripNewlines);
        },
        [](const StickerEvent &e) {
            return e.body();
        },
        [room, prettyPrint](const RoomMemberEvent &e) {
            // FIXME: Rewind to the name that was at the time of this event
            auto subjectName = room->member(e.userId()).htmlSafeDisplayName();
            if (e.membership() == Membership::Leave) {
                if (e.prevContent() && e.prevContent()->displayName) {
                    subjectName = sanitized(*e.prevContent()->displayName);
                    if (prettyPrint) {
                        subjectName = subjectName.toHtmlEscaped();
                    }
                }
            }

            if (prettyPrint) {
                subjectName = QStringLiteral("<a href=\"https://matrix.to/#/%1\" style=\"color: %2\">%3</a>")
                                  .arg(e.userId(), room->member(e.userId()).color().name(), subjectName);
            }

            // The below code assumes senderName output in AuthorRole
            switch (e.membership()) {
            case Membership::Invite:
                if (e.repeatsState()) {
                    auto text = i18n("reinvited %1 to the room", subjectName);
                    if (!e.reason().isEmpty()) {
                        text += i18nc("Optional reason for an invitation", ": %1") + (prettyPrint ? e.reason().toHtmlEscaped() : e.reason());
                    }
                    return text;
                }
                Q_FALLTHROUGH();
            case Membership::Join: {
                QString text{};
                // Part 1: invites and joins
                if (e.repeatsState()) {
                    text = i18n("joined the room (repeated)");
                } else if (e.changesMembership()) {
                    text = e.membership() == Membership::Invite ? i18n("invited %1 to the room", subjectName) : i18n("joined the room");
                }
                if (!text.isEmpty()) {
                    if (!e.reason().isEmpty()) {
                        text += i18n(": %1", e.reason().toHtmlEscaped());
                    }
                    return text;
                }
                // Part 2: profile changes of joined members
                if (e.isRename()) {
                    if (!e.newDisplayName()) {
                        text = i18nc("their refers to a singular user", "cleared their display name");
                    } else {
                        text = i18nc("their refers to a singular user",
                                     "changed their display name to %1",
                                     prettyPrint ? e.newDisplayName()->toHtmlEscaped() : *e.newDisplayName());
                    }
                }
                if (e.isAvatarUpdate()) {
                    if (!text.isEmpty()) {
                        text += i18n(" and ");
                    }
                    if (!e.newAvatarUrl()) {
                        text += i18nc("their refers to a singular user", "cleared their avatar");
                    } else if (!e.prevContent()->avatarUrl) {
                        text += i18n("set an avatar");
                    } else {
                        text += i18nc("their refers to a singular user", "updated their avatar");
                    }
                }
                if (text.isEmpty()) {
                    text = i18nc("<user> changed nothing", "changed nothing");
                }
                return text;
            }
            case Membership::Leave:
                if (e.prevContent() && e.prevContent()->membership == Membership::Invite) {
                    return (e.senderId() != e.userId()) ? i18n("withdrew %1's invitation", subjectName) : i18n("rejected the invitation");
                }

                if (e.prevContent() && e.prevContent()->membership == Membership::Ban) {
                    return (e.senderId() != e.userId()) ? i18n("unbanned %1", subjectName) : i18n("self-unbanned");
                }
                if (e.senderId() == e.userId()) {
                    return i18n("left the room");
                }
                if (const auto &reason = e.contentJson()["reason"_ls].toString().toHtmlEscaped(); !reason.isEmpty()) {
                    return i18n("has put %1 out of the room: %2", subjectName, reason);
                }
                return i18n("has put %1 out of the room", subjectName);
            case Membership::Ban:
                if (e.senderId() != e.userId()) {
                    if (e.reason().isEmpty()) {
                        return i18n("banned %1 from the room", subjectName);
                    } else {
                        return i18n("banned %1 from the room: %2", subjectName, prettyPrint ? e.reason().toHtmlEscaped() : e.reason());
                    }
                } else {
                    return i18n("self-banned from the room");
                }
            case Membership::Knock: {
                QString reason(e.contentJson()["reason"_ls].toString().toHtmlEscaped());
                return reason.isEmpty() ? i18n("requested an invite") : i18n("requested an invite with reason: %1", reason);
            }
            default:;
            }
            return i18n("made something unknown");
        },
        [](const RoomCanonicalAliasEvent &e) {
            return (e.alias().isEmpty()) ? i18n("cleared the room main alias") : i18n("set the room main alias to: %1", e.alias());
        },
        [prettyPrint](const RoomNameEvent &e) {
            return (e.name().isEmpty()) ? i18n("cleared the room name") : i18n("set the room name to: %1", prettyPrint ? e.name().toHtmlEscaped() : e.name());
        },
        [prettyPrint, stripNewlines](const RoomTopicEvent &e) {
            return (e.topic().isEmpty()) ? i18n("cleared the topic")
                                         : i18n("set the topic to: %1",
                                                prettyPrint         ? Quotient::prettyPrint(e.topic())
                                                    : stripNewlines ? e.topic().replace(u'\n', u' ')
                                                                    : e.topic());
        },
        [](const RoomAvatarEvent &) {
            return i18n("changed the room avatar");
        },
        [](const EncryptionEvent &) {
            return i18n("activated End-to-End Encryption");
        },
        [prettyPrint](const RoomCreateEvent &e) {
            return e.isUpgrade()
                ? i18n("upgraded the room to version %1", e.version().isEmpty() ? "1"_ls : (prettyPrint ? e.version().toHtmlEscaped() : e.version()))
                : i18n("created the room, version %1", e.version().isEmpty() ? "1"_ls : (prettyPrint ? e.version().toHtmlEscaped() : e.version()));
        },
        [](const RoomPowerLevelsEvent &) {
            return i18nc("'power level' means permission level", "changed the power levels for this room");
        },
        [](const LocationBeaconEvent &e) {
            return e.contentJson()["description"_ls].toString();
        },
        [](const RoomServerAclEvent &) {
            return i18n("changed the server access control lists for this room");
        },
        [](const WidgetEvent &e) {
            if (e.fullJson()["unsigned"_ls]["prev_content"_ls].toObject().isEmpty()) {
                return i18nc("[User] added <name> widget", "added %1 widget", e.contentJson()["name"_ls].toString());
            }
            if (e.contentJson().isEmpty()) {
                return i18nc("[User] removed <name> widget", "removed %1 widget", e.fullJson()["unsigned"_ls]["prev_content"_ls]["name"_ls].toString());
            }
            return i18nc("[User] configured <name> widget", "configured %1 widget", e.contentJson()["name"_ls].toString());
        },
        [prettyPrint](const StateEvent &e) {
            return e.stateKey().isEmpty() ? i18n("updated %1 state", e.matrixType())
                                          : i18n("updated %1 state for %2", e.matrixType(), prettyPrint ? e.stateKey().toHtmlEscaped() : e.stateKey());
        },
        [](const PollStartEvent &e) {
            return e.question();
        },
        i18n("Unknown event"));
}

QString EventHandler::getMessageBody(const NeoChatRoom *room, const RoomMessageEvent &event, Qt::TextFormat format, bool stripNewlines)
{
    TextHandler textHandler;

    if (event.hasFileContent()) {
        auto fileCaption = event.content()->fileInfo()->originalName;
        if (fileCaption.isEmpty()) {
            fileCaption = event.plainBody();
        } else if (event.content()->fileInfo()->originalName != event.plainBody()) {
            fileCaption = event.plainBody() + " | "_ls + fileCaption;
        }
        textHandler.setData(fileCaption);
        return !fileCaption.isEmpty() ? textHandler.handleRecievePlainText(Qt::PlainText, stripNewlines) : i18n("a file");
    }

    QString body;
    if (event.hasTextContent() && event.content()) {
        body = static_cast<const EventContent::TextContent *>(event.content())->body;
    } else {
        body = event.plainBody();
    }

    textHandler.setData(body);

    Qt::TextFormat inputFormat;
    if (event.mimeType().name() == "text/plain"_ls) {
        inputFormat = Qt::PlainText;
    } else {
        inputFormat = Qt::RichText;
    }

    if (format == Qt::RichText) {
        return textHandler.handleRecieveRichText(inputFormat, room, &event, stripNewlines, event.isReplaced());
    } else {
        return textHandler.handleRecievePlainText(inputFormat, stripNewlines);
    }
}

QString EventHandler::genericBody(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "genericBody called with event set to nullptr.";
        return {};
    }
    if (event->isRedacted()) {
        return i18n("<i>[This message was deleted]</i>");
    }

    return switchOnType(
        *event,
        [](const RoomMessageEvent &e) {
            Q_UNUSED(e)
            return i18n("sent a message");
        },
        [](const StickerEvent &e) {
            Q_UNUSED(e)
            return i18n("sent a sticker");
        },
        [](const RoomMemberEvent &e) {
            switch (e.membership()) {
            case Membership::Invite:
                if (e.repeatsState()) {
                    return i18n("reinvited someone to the room");
                }
                Q_FALLTHROUGH();
            case Membership::Join: {
                QString text{};
                // Part 1: invites and joins
                if (e.repeatsState()) {
                    text = i18n("joined the room (repeated)");
                } else if (e.changesMembership()) {
                    text = e.membership() == Membership::Invite ? i18n("invited someone to the room") : i18n("joined the room");
                }
                if (!text.isEmpty()) {
                    return text;
                }
                // Part 2: profile changes of joined members
                if (e.isRename()) {
                    if (!e.newDisplayName()) {
                        text = i18nc("their refers to a singular user", "cleared their display name");
                    } else {
                        text = i18nc("their refers to a singular user", "changed their display name");
                    }
                }
                if (e.isAvatarUpdate()) {
                    if (!text.isEmpty()) {
                        text += i18n(" and ");
                    }
                    if (!e.newAvatarUrl()) {
                        text += i18nc("their refers to a singular user", "cleared their avatar");
                    } else if (!e.prevContent()->avatarUrl) {
                        text += i18n("set an avatar");
                    } else {
                        text += i18nc("their refers to a singular user", "updated their avatar");
                    }
                }
                if (text.isEmpty()) {
                    text = i18nc("<user> changed nothing", "changed nothing");
                }
                return text;
            }
            case Membership::Leave:
                if (e.prevContent() && e.prevContent()->membership == Membership::Invite) {
                    return (e.senderId() != e.userId()) ? i18n("withdrew a user's invitation") : i18n("rejected the invitation");
                }

                if (e.prevContent() && e.prevContent()->membership == Membership::Ban) {
                    return (e.senderId() != e.userId()) ? i18n("unbanned a user") : i18n("self-unbanned");
                }
                return (e.senderId() != e.userId()) ? i18n("put a user out of the room") : i18n("left the room");
            case Membership::Ban:
                if (e.senderId() != e.userId()) {
                    return i18n("banned a user from the room");
                } else {
                    return i18n("self-banned from the room");
                }
            case Membership::Knock: {
                return i18n("requested an invite");
            }
            default:;
            }
            return i18n("made something unknown");
        },
        [](const RoomCanonicalAliasEvent &e) {
            return (e.alias().isEmpty()) ? i18n("cleared the room main alias") : i18n("set the room main alias");
        },
        [](const RoomNameEvent &e) {
            return (e.name().isEmpty()) ? i18n("cleared the room name") : i18n("set the room name");
        },
        [](const RoomTopicEvent &e) {
            return (e.topic().isEmpty()) ? i18n("cleared the topic") : i18n("set the topic");
        },
        [](const RoomAvatarEvent &) {
            return i18n("changed the room avatar");
        },
        [](const EncryptionEvent &) {
            return i18n("activated End-to-End Encryption");
        },
        [](const RoomCreateEvent &e) {
            return e.isUpgrade() ? i18n("upgraded the room version") : i18n("created the room");
        },
        [](const RoomPowerLevelsEvent &) {
            return i18nc("'power level' means permission level", "changed the power levels for this room");
        },
        [](const LocationBeaconEvent &) {
            return i18n("sent a live location beacon");
        },
        [](const RoomServerAclEvent &) {
            return i18n("changed the server access control lists for this room");
        },
        [](const WidgetEvent &e) {
            if (e.fullJson()["unsigned"_ls]["prev_content"_ls].toObject().isEmpty()) {
                return i18n("added a widget");
            }
            if (e.contentJson().isEmpty()) {
                return i18n("removed a widget");
            }
            return i18n("configured a widget");
        },
        [](const StateEvent &) {
            return i18n("updated the state");
        },
        [](const PollStartEvent &e) {
            Q_UNUSED(e);
            return i18n("started a poll");
        },
        i18n("Unknown event"));
}

QString EventHandler::subtitleText(const NeoChatRoom *room, const Quotient::RoomEvent *event)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "subtitleText called with room set to nullptr.";
        return {};
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "subtitleText called with event set to nullptr.";
        return {};
    }
    return singleLineAuthorDisplayname(room, event) + (event->isStateEvent() ? QLatin1String(" ") : QLatin1String(": ")) + plainBody(room, event, true);
}

QVariantMap EventHandler::mediaInfo(const NeoChatRoom *room, const Quotient::RoomEvent *event)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "mediaInfo called with room set to nullptr.";
        return {};
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "mediaInfo called with event set to nullptr.";
        return {};
    }
    return getMediaInfoForEvent(room, event);
}

QVariantMap EventHandler::getMediaInfoForEvent(const NeoChatRoom *room, const Quotient::RoomEvent *event)
{
    QString eventId = event->id();

    // Get the file info for the event.
    if (event->is<RoomMessageEvent>()) {
        auto roomMessageEvent = eventCast<const RoomMessageEvent>(event);
        if (!roomMessageEvent->hasFileContent()) {
            return {};
        }

        const EventContent::FileInfo *fileInfo;
        fileInfo = roomMessageEvent->content()->fileInfo();
        QVariantMap mediaInfo = getMediaInfoFromFileInfo(room, fileInfo, eventId, false, false);
        // if filename isn't specifically given, it is in body
        // https://spec.matrix.org/latest/client-server-api/#mfile
        mediaInfo["filename"_ls] = (fileInfo->originalName.isEmpty()) ? roomMessageEvent->plainBody() : fileInfo->originalName;

        return mediaInfo;
    } else if (event->is<StickerEvent>()) {
        const EventContent::FileInfo *fileInfo;

        auto stickerEvent = eventCast<const StickerEvent>(event);
        fileInfo = &stickerEvent->image();

        return getMediaInfoFromFileInfo(room, fileInfo, eventId, false, true);
    } else {
        return {};
    }
}

QVariantMap EventHandler::getMediaInfoFromFileInfo(const NeoChatRoom *room,
                                                   const EventContent::FileInfo *fileInfo,
                                                   const QString &eventId,
                                                   bool isThumbnail,
                                                   bool isSticker)
{
    QVariantMap mediaInfo;

    // Get the mxc URL for the media.
    if (!fileInfo->url().isValid() || fileInfo->url().scheme() != QStringLiteral("mxc") || eventId.isEmpty()) {
        mediaInfo["source"_ls] = QUrl();
    } else {
        QUrl source = room->makeMediaUrl(eventId, fileInfo->url());

        if (source.isValid()) {
            mediaInfo["source"_ls] = source;
        } else {
            mediaInfo["source"_ls] = QUrl();
        }
    }

    auto mimeType = fileInfo->mimeType;
    // Add the MIME type for the media if available.
    mediaInfo["mimeType"_ls] = mimeType.name();

    // Add the MIME type icon if available.
    mediaInfo["mimeIcon"_ls] = mimeType.iconName();

    // Add media size if available.
    mediaInfo["size"_ls] = fileInfo->payloadSize;

    mediaInfo["isSticker"_ls] = isSticker;

    // Add parameter depending on media type.
    if (mimeType.name().contains(QStringLiteral("image"))) {
        if (auto castInfo = static_cast<const EventContent::ImageContent *>(fileInfo)) {
            mediaInfo["width"_ls] = castInfo->imageSize.width();
            mediaInfo["height"_ls] = castInfo->imageSize.height();

            // TODO: Images in certain formats (e.g. WebP) will be erroneously marked as animated, even if they are static.
            mediaInfo["animated"_ls] = QMovie::supportedFormats().contains(mimeType.preferredSuffix().toUtf8());

            if (!isThumbnail) {
                QVariantMap tempInfo;
                auto thumbnailInfo = getMediaInfoFromFileInfo(room, castInfo->thumbnailInfo(), eventId, true);
                if (thumbnailInfo["source"_ls].toUrl().scheme() == "mxc"_ls) {
                    tempInfo = thumbnailInfo;
                } else {
                    QString blurhash = castInfo->originalInfoJson["xyz.amorgan.blurhash"_ls].toString();
                    if (blurhash.isEmpty()) {
                        tempInfo["source"_ls] = QUrl();
                    } else {
                        tempInfo["source"_ls] = QUrl("image://blurhash/"_ls + blurhash);
                    }
                }
                mediaInfo["tempInfo"_ls] = tempInfo;
            }
        }
    }
    if (mimeType.name().contains(QStringLiteral("video"))) {
        if (auto castInfo = static_cast<const EventContent::VideoContent *>(fileInfo)) {
            mediaInfo["width"_ls] = castInfo->imageSize.width();
            mediaInfo["height"_ls] = castInfo->imageSize.height();
            mediaInfo["duration"_ls] = castInfo->duration;

            if (!isThumbnail) {
                QVariantMap tempInfo;
                auto thumbnailInfo = getMediaInfoFromFileInfo(room, castInfo->thumbnailInfo(), eventId, true);
                if (thumbnailInfo["source"_ls].toUrl().scheme() == "mxc"_ls) {
                    tempInfo = thumbnailInfo;
                } else {
                    QString blurhash = castInfo->originalInfoJson["xyz.amorgan.blurhash"_ls].toString();
                    if (blurhash.isEmpty()) {
                        tempInfo["source"_ls] = QUrl();
                    } else {
                        tempInfo["source"_ls] = QUrl("image://blurhash/"_ls + blurhash);
                    }
                }
                mediaInfo["tempInfo"_ls] = tempInfo;
            }
        }
    }
    if (mimeType.name().contains(QStringLiteral("audio"))) {
        if (auto castInfo = static_cast<const EventContent::AudioContent *>(fileInfo)) {
            mediaInfo["duration"_ls] = castInfo->duration;
        }
    }

    return mediaInfo;
}

bool EventHandler::hasReply(const Quotient::RoomEvent *event, bool showFallbacks)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "hasReply called with event set to nullptr.";
        return false;
    }

    const auto relations = event->contentPart<QJsonObject>("m.relates_to"_ls);
    if (!relations.isEmpty()) {
        const bool hasReplyRelation = relations.contains("m.in_reply_to"_ls);
        bool isFallingBack = relations["is_falling_back"_ls].toBool();
        return hasReplyRelation && (showFallbacks ? true : !isFallingBack);
    }
    return false;
}

QString EventHandler::replyId(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "replyId called with event set to nullptr.";
        return {};
    }
    return event->contentJson()["m.relates_to"_ls].toObject()["m.in_reply_to"_ls].toObject()["event_id"_ls].toString();
}

Quotient::RoomMember EventHandler::replyAuthor(const NeoChatRoom *room, const Quotient::RoomEvent *event)
{
    if (room == nullptr) {
        qCWarning(EventHandling) << "replyAuthor called with room set to nullptr.";
        return {};
    }
    if (event == nullptr) {
        qCWarning(EventHandling) << "replyAuthor called with event set to nullptr. Returning empty user.";
        return {};
    }

    if (auto replyPtr = room->getReplyForEvent(*event)) {
        return room->member(replyPtr->senderId());
    } else {
        return room->member(QString());
    }
}

bool EventHandler::isThreaded(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "isThreaded called with event set to nullptr.";
        return false;
    }

    return (event->contentPart<QJsonObject>("m.relates_to"_ls).contains("rel_type"_ls)
            && event->contentPart<QJsonObject>("m.relates_to"_ls)["rel_type"_ls].toString() == "m.thread"_ls)
        || (!event->unsignedPart<QJsonObject>("m.relations"_ls).isEmpty() && event->unsignedPart<QJsonObject>("m.relations"_ls).contains("m.thread"_ls));
}

QString EventHandler::threadRoot(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "threadRoot called with event set to nullptr.";
        return {};
    }

    // Get the thread root ID from m.relates_to if it exists.
    if (event->contentPart<QJsonObject>("m.relates_to"_ls).contains("rel_type"_ls)
        && event->contentPart<QJsonObject>("m.relates_to"_ls)["rel_type"_ls].toString() == "m.thread"_ls) {
        return event->contentPart<QJsonObject>("m.relates_to"_ls)["event_id"_ls].toString();
    }
    // For thread root events they have an m.relations in the unsigned part with a m.thread object.
    // If so return the event ID as it is the root.
    if (!event->unsignedPart<QJsonObject>("m.relations"_ls).isEmpty() && event->unsignedPart<QJsonObject>("m.relations"_ls).contains("m.thread"_ls)) {
        return id(event);
    }
    return {};
}

float EventHandler::latitude(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "latitude called with event set to nullptr.";
        return -100.0;
    }

    const auto geoUri = event->contentJson()["geo_uri"_ls].toString();
    if (geoUri.isEmpty()) {
        return -100.0; // latitude runs from -90deg to +90deg so -100 is out of range.
    }
    const auto latitude = geoUri.split(u';')[0].split(u':')[1].split(u',')[0];
    return latitude.toFloat();
}

float EventHandler::longitude(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "longitude called with event set to nullptr.";
        return -200.0;
    }

    const auto geoUri = event->contentJson()["geo_uri"_ls].toString();
    if (geoUri.isEmpty()) {
        return -200.0; // longitude runs from -180deg to +180deg so -200 is out of range.
    }
    const auto latitude = geoUri.split(u';')[0].split(u':')[1].split(u',')[1];
    return latitude.toFloat();
}

QString EventHandler::locationAssetType(const Quotient::RoomEvent *event)
{
    if (event == nullptr) {
        qCWarning(EventHandling) << "locationAssetType called with event set to nullptr.";
        return {};
    }

    const auto assetType = event->contentJson()["org.matrix.msc3488.asset"_ls].toObject()["type"_ls].toString();
    if (assetType.isEmpty()) {
        return {};
    }
    return assetType;
}

#include "moc_eventhandler.cpp"