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#include "TimelineModel.h"
#include "Logging.h"
#include "Utils.h"
namespace {
template<class T>
QString
eventId(const T &event)
{
return QString::fromStdString(event.event_id);
}
template<class T>
QString
roomId(const T &event)
{
return QString::fromStdString(event.room_id);
}
template<class T>
QString
senderId(const T &event)
{
return QString::fromStdString(event.sender);
}
template<class T>
QDateTime
eventTimestamp(const T &event)
{
return QDateTime::fromMSecsSinceEpoch(event.origin_server_ts);
}
}
TimelineModel::TimelineModel(QString room_id, QObject *parent)
: QAbstractListModel(parent)
, room_id_(room_id)
{
connect(
this, &TimelineModel::oldMessagesRetrieved, this, &TimelineModel::addBackwardsEvents);
}
QHash<int, QByteArray>
TimelineModel::roleNames() const
{
return {
{Section, "section"},
{Type, "type"},
{Body, "body"},
{FormattedBody, "formattedBody"},
{UserId, "userId"},
{UserName, "userName"},
{Timestamp, "timestamp"},
};
}
int
TimelineModel::rowCount(const QModelIndex &parent) const
{
Q_UNUSED(parent);
nhlog::ui()->info("current order size: {}", eventOrder.size());
return (int)this->eventOrder.size();
}
QVariant
TimelineModel::data(const QModelIndex &index, int role) const
{
if (index.row() < 0 && index.row() >= (int)eventOrder.size())
return QVariant();
QString id = eventOrder[index.row()];
switch (role) {
case Section: {
QDateTime date = boost::apply_visitor(
[](const auto &e) -> QDateTime { return eventTimestamp(e); }, events.value(id));
date.setTime(QTime());
QString userId = boost::apply_visitor(
[](const auto &e) -> QString { return senderId(e); }, events.value(id));
for (int r = index.row() - 1; r > 0; r--) {
QDateTime prevDate = boost::apply_visitor(
[](const auto &e) -> QDateTime { return eventTimestamp(e); },
events.value(eventOrder[r]));
prevDate.setTime(QTime());
if (prevDate != date)
return QString("%2 %1").arg(date.toMSecsSinceEpoch()).arg(userId);
QString prevUserId =
boost::apply_visitor([](const auto &e) -> QString { return senderId(e); },
events.value(eventOrder[r]));
if (userId != prevUserId)
break;
}
return QString("%1").arg(userId);
}
case UserId:
return QVariant(boost::apply_visitor(
[](const auto &e) -> QString { return senderId(e); }, events.value(id)));
case UserName:
return QVariant(Cache::displayName(
room_id_,
boost::apply_visitor([](const auto &e) -> QString { return senderId(e); },
events.value(id))));
case Timestamp:
return QVariant(boost::apply_visitor(
[](const auto &e) -> QDateTime { return eventTimestamp(e); }, events.value(id)));
default:
return QVariant();
}
}
void
TimelineModel::addEvents(const mtx::responses::Timeline &events)
{
if (isInitialSync) {
prev_batch_token_ = QString::fromStdString(events.prev_batch);
isInitialSync = false;
}
nhlog::ui()->info("add {} events", events.events.size());
std::vector<QString> ids;
for (const auto &e : events.events) {
QString id =
boost::apply_visitor([](const auto &e) -> QString { return eventId(e); }, e);
this->events.insert(id, e);
ids.push_back(id);
nhlog::ui()->info("add event {}", id.toStdString());
}
beginInsertRows(QModelIndex(),
static_cast<int>(this->events.size()),
static_cast<int>(this->events.size() + ids.size() - 1));
this->eventOrder.insert(this->eventOrder.end(), ids.begin(), ids.end());
endInsertRows();
}
void
TimelineModel::fetchHistory()
{
if (paginationInProgress) {
nhlog::ui()->warn("Already loading older messages");
return;
}
paginationInProgress = true;
mtx::http::MessagesOpts opts;
opts.room_id = room_id_.toStdString();
opts.from = prev_batch_token_.toStdString();
nhlog::ui()->info("Paginationg room {}", opts.room_id);
http::client()->messages(
opts, [this, opts](const mtx::responses::Messages &res, mtx::http::RequestErr err) {
if (err) {
nhlog::net()->error("failed to call /messages ({}): {} - {}",
opts.room_id,
mtx::errors::to_string(err->matrix_error.errcode),
err->matrix_error.error);
return;
}
emit oldMessagesRetrieved(std::move(res));
});
}
void
TimelineModel::addBackwardsEvents(const mtx::responses::Messages &msgs)
{
nhlog::ui()->info("add {} backwards events", msgs.chunk.size());
std::vector<QString> ids;
for (const auto &e : msgs.chunk) {
QString id =
boost::apply_visitor([](const auto &e) -> QString { return eventId(e); }, e);
this->events.insert(id, e);
ids.push_back(id);
nhlog::ui()->info("add event {}", id.toStdString());
}
beginInsertRows(QModelIndex(), 0, static_cast<int>(ids.size() - 1));
this->eventOrder.insert(this->eventOrder.begin(), ids.rbegin(), ids.rend());
endInsertRows();
prev_batch_token_ = QString::fromStdString(msgs.end);
paginationInProgress = false;
}
QColor
TimelineModel::userColor(QString id, QColor background)
{
if (!userColors.contains(id))
userColors.insert(
id, QColor(utils::generateContrastingHexColor(id, background.name())));
return userColors.value(id);
}
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