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#include "Utils.h"
#include <QApplication>
#include <QDesktopWidget>
#include <variant.hpp>
using TimelineEvent = mtx::events::collections::TimelineEvents;
QString
utils::descriptiveTime(const QDateTime &then)
{
const auto now = QDateTime::currentDateTime();
const auto days = then.daysTo(now);
if (days == 0)
return then.toString("HH:mm");
else if (days < 2)
return QString("Yesterday");
else if (days < 365)
return then.toString("dd/MM");
return then.toString("dd/MM/yy");
}
DescInfo
utils::getMessageDescription(const TimelineEvent &event,
const QString &localUser,
const QString &room_id)
{
using Audio = mtx::events::RoomEvent<mtx::events::msg::Audio>;
using Emote = mtx::events::RoomEvent<mtx::events::msg::Emote>;
using File = mtx::events::RoomEvent<mtx::events::msg::File>;
using Image = mtx::events::RoomEvent<mtx::events::msg::Image>;
using Notice = mtx::events::RoomEvent<mtx::events::msg::Notice>;
using Text = mtx::events::RoomEvent<mtx::events::msg::Text>;
using Video = mtx::events::RoomEvent<mtx::events::msg::Video>;
using Encrypted = mtx::events::EncryptedEvent<mtx::events::msg::Encrypted>;
if (mpark::holds_alternative<Audio>(event)) {
return createDescriptionInfo<Audio>(event, localUser, room_id);
} else if (mpark::holds_alternative<Emote>(event)) {
return createDescriptionInfo<Emote>(event, localUser, room_id);
} else if (mpark::holds_alternative<File>(event)) {
return createDescriptionInfo<File>(event, localUser, room_id);
} else if (mpark::holds_alternative<Image>(event)) {
return createDescriptionInfo<Image>(event, localUser, room_id);
} else if (mpark::holds_alternative<Notice>(event)) {
return createDescriptionInfo<Notice>(event, localUser, room_id);
} else if (mpark::holds_alternative<Text>(event)) {
return createDescriptionInfo<Text>(event, localUser, room_id);
} else if (mpark::holds_alternative<Video>(event)) {
return createDescriptionInfo<Video>(event, localUser, room_id);
} else if (mpark::holds_alternative<mtx::events::Sticker>(event)) {
return createDescriptionInfo<mtx::events::Sticker>(event, localUser, room_id);
} else if (mpark::holds_alternative<Encrypted>(event)) {
const auto msg = mpark::get<Encrypted>(event);
const auto sender = QString::fromStdString(msg.sender);
const auto username = Cache::displayName(room_id, sender);
const auto ts = QDateTime::fromMSecsSinceEpoch(msg.origin_server_ts);
DescInfo info;
if (sender == localUser)
info.username = "You";
else
info.username = username;
info.userid = sender;
info.body = QString(" %1").arg(messageDescription<Encrypted>());
info.timestamp = utils::descriptiveTime(ts);
info.datetime = ts;
return info;
} else {
std::cout << "type not found: " << serialize_event(event).dump(2) << '\n';
}
return DescInfo{};
}
QString
utils::firstChar(const QString &input)
{
if (input.isEmpty())
return input;
for (auto const &c : input.toUcs4()) {
if (QString::fromUcs4(&c, 1) != QString("#"))
return QString::fromUcs4(&c, 1).toUpper();
}
return QString::fromUcs4(&input.toUcs4().at(0), 1).toUpper();
}
QString
utils::humanReadableFileSize(uint64_t bytes)
{
constexpr static const char *units[] = {"B", "KiB", "MiB", "GiB", "TiB"};
constexpr static const int length = sizeof(units) / sizeof(units[0]);
int u = 0;
double size = static_cast<double>(bytes);
while (size >= 1024.0 && u < length) {
++u;
size /= 1024.0;
}
return QString::number(size, 'g', 4) + ' ' + units[u];
}
int
utils::levenshtein_distance(const std::string &s1, const std::string &s2)
{
const int nlen = s1.size();
const int hlen = s2.size();
if (hlen == 0)
return -1;
if (nlen == 1)
return s2.find(s1);
std::vector<int> row1(hlen + 1, 0);
for (int i = 0; i < nlen; ++i) {
std::vector<int> row2(1, i + 1);
for (int j = 0; j < hlen; ++j) {
const int cost = s1[i] != s2[j];
row2.push_back(
std::min(row1[j + 1] + 1, std::min(row2[j] + 1, row1[j] + cost)));
}
row1.swap(row2);
}
return *std::min_element(row1.begin(), row1.end());
}
QString
utils::event_body(const mtx::events::collections::TimelineEvents &event)
{
using namespace mtx::events;
using namespace mtx::events::msg;
if (mpark::holds_alternative<RoomEvent<Audio>>(event)) {
return message_body<RoomEvent<Audio>>(event);
} else if (mpark::holds_alternative<RoomEvent<Emote>>(event)) {
return message_body<RoomEvent<Emote>>(event);
} else if (mpark::holds_alternative<RoomEvent<File>>(event)) {
return message_body<RoomEvent<File>>(event);
} else if (mpark::holds_alternative<RoomEvent<Image>>(event)) {
return message_body<RoomEvent<Image>>(event);
} else if (mpark::holds_alternative<RoomEvent<Notice>>(event)) {
return message_body<RoomEvent<Notice>>(event);
} else if (mpark::holds_alternative<Sticker>(event)) {
return message_body<Sticker>(event);
} else if (mpark::holds_alternative<RoomEvent<Text>>(event)) {
return message_body<RoomEvent<Text>>(event);
} else if (mpark::holds_alternative<RoomEvent<Video>>(event)) {
return message_body<RoomEvent<Video>>(event);
}
return QString();
}
QPixmap
utils::scaleImageToPixmap(const QImage &img, int size)
{
if (img.isNull())
return QPixmap();
const int sz = QApplication::desktop()->screen()->devicePixelRatio() * size;
return QPixmap::fromImage(
img.scaled(sz, sz, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
}
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