/*
 * Copyright (C) 2014-2022 CZ.NIC
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations including
 * the two.
 */

#include "src/datovka_shared/log/global.h"
#include "src/datovka_shared/log/log.h"
#include "src/datovka_shared/log/memory_log.h"
#include "src/dimensions/dimensions.h"
#include "src/gui/dlg_view_log.h"
#include "ui_dlg_view_log.h"

DlgViewLog::DlgViewLog(QWidget *parent, Qt::WindowFlags flags)
    : QDialog(parent, flags),
    m_ui(new (::std::nothrow) Ui::DlgViewLog),
    m_memLog(Q_NULLPTR)
{
	m_ui->setupUi(this);

	m_memLog = GlobInstcs::logPtr->memoryLog();
	if (m_memLog != Q_NULLPTR) {
		connect(m_memLog, SIGNAL(logged(quint64)),
		    this, SLOT(handleNewMsg(quint64)));

		fillLogContent();
	}

	{
		const QRect dimensions(Dimensions::windowDimensions(this, 60, 30));
		resize(dimensions.width(), dimensions.height());
	}

	m_ui->logTextEdit->setLineWrapMode(QPlainTextEdit::NoWrap);

	/* Set fixed width font. */
	QTextDocument *doc = m_ui->logTextEdit->document();
	const QFont fixedFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
	doc->setDefaultFont(fixedFont);
}

DlgViewLog::~DlgViewLog(void)
{
	if (m_memLog != Q_NULLPTR) {
		m_memLog->disconnect(SIGNAL(logged(quint64)),
		    this, SLOT(handleNewMsg(quint64)));
	}

	delete m_ui;
}

void DlgViewLog::handleNewMsg(quint64 key)
{
	appendNewMsg(m_memLog->message(key));
}

void DlgViewLog::appendNewMsg(const QString &msg)
{
	m_ui->logTextEdit->moveCursor(QTextCursor::End);
	m_ui->logTextEdit->insertPlainText(msg);
	m_ui->logTextEdit->moveCursor(QTextCursor::End);
}

void DlgViewLog::fillLogContent(void)
{
	const QList<quint64> keys(m_memLog->keys());

	foreach (quint64 key, keys) {
		appendNewMsg(m_memLog->message(key));
	}
}
