awesome-widgets/sources/awesomewidgets/yahooquotesprovider.cpp
2023-05-17 03:42:40 +03:00

88 lines
3.0 KiB
C++

/***************************************************************************
* This file is part of awesome-widgets *
* *
* awesome-widgets is free software: you can redistribute it and/or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation, either version 3 of the *
* License, or (at your option) any later version. *
* *
* awesome-widgets is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with awesome-widgets. If not, see http://www.gnu.org/licenses/ *
***************************************************************************/
#include "yahooquotesprovider.h"
#include <QJsonDocument>
#include <QUrlQuery>
#include "awdebug.h"
YahooQuotesProvider::YahooQuotesProvider(QObject *_parent)
: AbstractQuotesProvider(_parent)
{
qCDebug(LOG_LIB) << __PRETTY_FUNCTION__;
}
YahooQuotesProvider::~YahooQuotesProvider()
{
qCDebug(LOG_LIB) << __PRETTY_FUNCTION__;
}
void YahooQuotesProvider::initUrl(const QString &_asset)
{
qCDebug(LOG_LIB) << "Init query for" << _asset;
m_url = QUrl(YAHOO_QUOTES_URL);
QUrlQuery params;
params.addQueryItem("format", "json");
params.addQueryItem("env", "store://datatables.org/alltableswithkeys");
params.addQueryItem("q", QString(YAHOO_QUOTES_QUERY).arg(_asset));
m_url.setQuery(params);
}
QVariantHash YahooQuotesProvider::parse(const QByteArray &_source, const QVariantHash &_oldValues) const
{
qCDebug(LOG_LIB) << "Parse json" << _source;
QVariantHash values;
QJsonParseError error{};
QJsonDocument jsonDoc = QJsonDocument::fromJson(_source, &error);
if (error.error != QJsonParseError::NoError) {
qCWarning(LOG_LIB) << "Parse error" << error.errorString();
return values;
}
QVariantMap jsonQuotes = jsonDoc.toVariant().toMap()["query"].toMap();
jsonQuotes = jsonQuotes["results"].toMap()["quote"].toMap();
// extract old data
auto oldPrice = _oldValues[tag("price")].toDouble();
// last trade
auto value = jsonQuotes["LastTradePriceOnly"].toString().toDouble();
values[tag("pricechg")] = oldPrice == 0.0 ? 0.0 : value - oldPrice;
values[tag("percpricechg")] = 100.0 * values[tag("pricechg")].toDouble() / value;
values[tag("price")] = value;
// volume
values[tag("volume")] = 0;
values[tag("volumechg")] = 0;
values[tag("percvolumechg")] = 0.0;
return values;
}
QUrl YahooQuotesProvider::url() const
{
return m_url;
}