/*****************************************************************************
 * web.cpp - QStarDict, a dictionary application for learning languages      *
 * Copyright (C) 2008 Alexander Rodin                                        *
 *                                                                           *
 * This program 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 2 of the License, or         *
 * (at your option) any later version.                                       *
 *                                                                           *
 * This program 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 this program; if not, write to the Free Software Foundation, Inc.,   *
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.               *
 *****************************************************************************/

#include "web.h"

#include <QBuffer>
#include <QDir>
#include <QEventLoop>
#include <QFile>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QSettings>
#include <QUrl>
#include "settingsdialog.h"

Web::Web(QObject *parent)
	: QObject(parent)
{
}

QStringList Web::availableDicts() const
{
	QStringList result = QDir(workPath()).entryList(QStringList("*.webdict"), QDir::Files, QDir::Name);
	result.replaceInStrings(".webdict", "");
	return result;
}

void Web::setLoadedDicts(const QStringList &dicts)
{
	for (QStringList::const_iterator i = dicts.begin(); i != dicts.end(); ++i)
	{
		QString filename = workPath() + "/" + *i + ".webdict";
		if (! QFile::exists(filename))
			continue;
		QSettings dict(filename, QSettings::IniFormat);
		QString query = dict.value("query").toString();
		if (! query.isEmpty())
		{
			m_loadedDicts[*i].query = query;
			m_loadedDicts[*i].codec = dict.value("charset").toByteArray();
		}
	}
}

Web::DictInfo Web::dictInfo(const QString &dict)
{
	QString filename = workPath() + "/" + dict + ".webdict";
	if (! QFile::exists(filename))
		return DictInfo();
	QSettings dictFile(filename, QSettings::IniFormat);
	DictInfo info(name(), dict,
			dictFile.value("author").toString(),
			dictFile.value("description").toString());
	return info;
}

bool Web::isTranslatable(const QString &dict, [[maybe_unused]] const QString &word)
{
	if (! m_loadedDicts.contains(dict))
		return false;
	return true;
}

Web::Translation Web::translate(const QString &dict, const QString &word)
{
	if (! m_loadedDicts.contains(dict))
		return Translation();
	QUrl url(m_loadedDicts[dict].query.replace("%s", word));
	QEventLoop loop;
	QNetworkAccessManager qnam;
	QNetworkReply *reply = qnam.get(QNetworkRequest(url));
	connect(reply, &QNetworkReply::finished,
            &loop, &QEventLoop::quit);
	loop.exec();
	QString translation = QString::fromUtf8(reply->readAll());
	return Translation(dict, word, translation);
}

int Web::execSettingsDialog(QWidget *parent)
{
	::SettingsDialog dialog(this, parent);
	return dialog.exec();
}

#if QT_VERSION < 0x050000
Q_EXPORT_PLUGIN2(web, Web)
#endif

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