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matrix-event.cpp
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matrix-event.cpp
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/*
* This file is part of kazv.
* SPDX-FileCopyrightText: 2020-2023 tusooa <tusooa@kazv.moe>
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#include <kazv-defs.hpp>
#include "matrix-event.hpp"
#include "matrix-event-reader-list-model.hpp"
#include "helper.hpp"
#include "kazv-log.hpp"
using namespace Kazv;
static std::optional<LocalEchoDesc> getLocalEcho(std::variant<Event, LocalEchoDesc> event)
{
if (std::holds_alternative<LocalEchoDesc>(event)) {
return std::get<LocalEchoDesc>(event);
} else {
return std::nullopt;
}
}
static Event getEvent(std::variant<Event, LocalEchoDesc> event)
{
if (std::holds_alternative<LocalEchoDesc>(event)) {
return std::get<LocalEchoDesc>(event).event;
} else {
return std::get<Event>(event);
}
}
MatrixEvent::MatrixEvent(lager::reader<std::variant<Event, LocalEchoDesc>> event, std::optional<Room> room, QObject *parent)
: QObject(parent)
, m_localEcho(event.map(getLocalEcho))
, m_event(event.map(getEvent))
, m_room(room)
, m_eventIdStd(m_event.map(&Event::id))
, m_senderStd(m_event.map(&Event::sender))
, m_originalContent(m_event.map([](Event e) { return e.content().get().get<QJsonObject>(); }))
, m_edits(m_room.has_value() ? lager::reader<EventList>(lager::with(
m_event,
m_room->relatedEvents(m_eventIdStd, "m.replace")
).map([](const Event &origEvent, const EventList &edits) -> EventList {
// https://spec.matrix.org/v1.10/client-server-api/#event-replacements
if (!(
// (3) no state key
!origEvent.isState()
// (4) original event is not an edit
&& origEvent.relationship().first != "m.replace"
)) {
return EventList{};
}
auto origType = origEvent.type();
auto origSender = origEvent.sender();
return intoImmer(
EventList{},
zug::filter([&origType, &origSender](const Event &ev) {
return
// (0) same room id requirement is implicit.
// (1) same sender
origSender == ev.sender()
// (2) same type
&& origType == ev.type()
// (3) no state key
&& !ev.isState()
// (4) original event is not an edit is checked above
// (5) replaced event content has `m.new_content`
&& ev.content().get().contains("m.new_content");
}),
edits
);
})) : lager::make_constant(EventList{}))
, LAGER_QT(eventId)(m_eventIdStd.xform(strToQt))
, LAGER_QT(sender)(m_senderStd.xform(strToQt))
, LAGER_QT(type)(m_event.xform(zug::map([](Event e) { return e.type(); }) | strToQt))
, LAGER_QT(stateKey)(m_event.xform(zug::map([](Event e) { return e.stateKey(); }) | strToQt))
, LAGER_QT(content)(lager::with(m_originalContent, m_edits).map([](const QJsonObject &origContent, const EventList &edits) {
if (edits.empty()) {
return origContent;
} else {
return edits.at(edits.size() - 1).content().get().at("m.new_content").get<QJsonObject>();
}
}))
, LAGER_QT(encrypted)(m_event.xform(zug::map([](Event e) { return e.encrypted(); })))
, LAGER_QT(decrypted)(m_event.map([](Event e) { return e.decrypted(); }))
, LAGER_QT(isState)(m_event.map([](Event e) { return e.isState(); }))
, LAGER_QT(unsignedData)(m_event.map([](Event e) {
auto j = e.raw();
if (j.get().contains("unsigned")) {
return j.get()["unsigned"].template get<QJsonObject>();
} else {
return QJsonObject();
}
}))
, LAGER_QT(isLocalEcho)(m_localEcho.map([](const auto &maybe) { return maybe.has_value(); }))
, LAGER_QT(isSending)(m_localEcho.map([](const auto &maybe) {
return maybe.has_value() && maybe.value().status == LocalEchoDesc::Sending;
}))
, LAGER_QT(isFailed)(m_localEcho.map([](const auto &maybe) {
return maybe.has_value() && maybe.value().status == LocalEchoDesc::Failed;
}))
, LAGER_QT(txnId)(m_localEcho.map([](const auto &maybe) {
return maybe.has_value() ? QString::fromStdString(maybe.value().txnId) : QStringLiteral("");
}))
, LAGER_QT(redacted)(m_event.map([](const auto &e) {
return e.redacted();
}))
, LAGER_QT(originalSource)(m_event.map([](Event e) {
return e.originalJson().get().template get<QJsonObject>();
}))
, LAGER_QT(decryptedSource)(m_event.map([](Event e) {
return e.decrypted() ? e.raw().get().template get<QJsonObject>() : QJsonObject();
}))
, LAGER_QT(replyingToEventId)(m_event.map([](Event e) {
return e.replyingTo();
}).xform(strToQt))
, LAGER_QT(relationType)(m_event.map([](Event e) {
return e.relationship().first;
}).xform(strToQt))
, LAGER_QT(relatedEventId)(m_event.map([](Event e) {
return e.relationship().second;
}).xform(strToQt))
, LAGER_QT(formattedTime)(m_event
.map(&Event::originServerTs)
.map([](Timestamp ts) {
auto locale = QLocale::system();
return locale.toString(
QDateTime::fromMSecsSinceEpoch(ts).time(),
QLocale::ShortFormat
);
}))
, LAGER_QT(isEdited)(m_edits.map([](const auto &edits) { return !edits.empty(); }))
{
}
MatrixEvent::MatrixEvent(lager::reader<Event> event, std::optional<Kazv::Room> room, QObject *parent)
: MatrixEvent(event.map([](const auto &e) -> std::variant<Kazv::Event, Kazv::LocalEchoDesc> { return e; }), room, parent)
{
}
MatrixEvent::~MatrixEvent() = default;
MatrixEventReaderListModel *MatrixEvent::readers() const
{
if (!m_room.has_value()) {
qCDebug(kazvLog) << "readers(): no room!";
return new MatrixEventReaderListModel(lager::make_constant(immer::flex_vector<std::tuple<Kazv::Event, Kazv::Timestamp>>{}));
}
auto eventReaders = lager::with(
m_room.value().eventReaders(m_event.map(&Event::id)),
m_room.value().stateEvents()
).map([](const auto &eventReaders, const auto &states) {
return intoImmer(
immer::flex_vector<std::tuple<Kazv::Event, Kazv::Timestamp>>{},
zug::map([states](const auto &item) -> std::tuple<Kazv::Event, Kazv::Timestamp> {
auto [userId, ts] = item;
qCDebug(kazvLog) << "readers(): read by" << QString::fromStdString(userId);
auto memberEvent = states.count({"m.room.member", userId})
? states[{"m.room.member", userId}]
: Event{json{
{"content", json::object()},
{"state_key", userId},
{"type", "m.room.member"},
}};
return {memberEvent, ts};
}),
eventReaders
);
}).make();
return new MatrixEventReaderListModel(eventReaders);
}
Kazv::Event MatrixEvent::underlyingEvent() const
{
return m_event.get();
}

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