///////////////////////////////////////////////////////////////////////////////
// Simple x264 Launcher
// Copyright (C) 2004-2019 LoRd_MuldeR <MuldeR2@GMX.de>
//
// 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.
//
// http://www.gnu.org/licenses/gpl-2.0.txt
///////////////////////////////////////////////////////////////////////////////

#include "model_logFile.h"
#include "thread_encode.h"

#include <QIcon>
#include <QApplication>
#include <QClipboard>
#include <QDir>
#include <QTextStream>
#include <QDateTime>

static const QLatin1String FMT_TIMESTAMP("[yyyy-MM-dd][HH:mm:ss] ");

LogFileModel::LogFileModel(const QString &sourceName, const QString &outputName, const QString &configName)
{
	const qint64 timeStamp = QDateTime::currentMSecsSinceEpoch();
	m_lines << qMakePair(timeStamp, QString("Job not started yet."));
	m_lines << qMakePair(timeStamp, QString());
	m_lines << qMakePair(timeStamp, QString("Scheduled source: %1").arg(QDir::toNativeSeparators(sourceName)));
	m_lines << qMakePair(timeStamp, QString("Scheduled output: %1").arg(QDir::toNativeSeparators(outputName)));
	m_lines << qMakePair(timeStamp, QString("Scheduled config: %1").arg(configName));
	m_firstLine = true;
}

LogFileModel::~LogFileModel(void)
{
}

///////////////////////////////////////////////////////////////////////////////
// Model interface
///////////////////////////////////////////////////////////////////////////////

int LogFileModel::columnCount(const QModelIndex &parent) const
{
	return 1;
}

int LogFileModel::rowCount(const QModelIndex &parent) const
{
	return m_lines.count();
}

QVariant LogFileModel::headerData(int section, Qt::Orientation orientation, int role) const 
{
	return QVariant();
}

QModelIndex LogFileModel::index(int row, int column, const QModelIndex &parent) const
{
	return createIndex(row, column, NULL);
}

QModelIndex LogFileModel::parent(const QModelIndex &index) const
{
	return QModelIndex();
}

QVariant LogFileModel::data(const QModelIndex &index, int role) const
{
	if((role == Qt::DisplayRole) || (role == Qt::ToolTipRole))
	{
		if(index.row() >= 0 && index.row() < m_lines.count() && index.column() == 0)
		{
			if (role == Qt::ToolTipRole)
			{
				const LogEntry &entry = m_lines.at(index.row());
				const QString timeStamp = QDateTime::fromMSecsSinceEpoch(entry.first).toString(FMT_TIMESTAMP);
				return timeStamp + entry.second;
			}
			else
			{
				return m_lines.at(index.row()).second;
			}
		}
	}

	return QVariant();
}

///////////////////////////////////////////////////////////////////////////////
// Public API
///////////////////////////////////////////////////////////////////////////////

void LogFileModel::copyToClipboard(void) const
{
	QClipboard *const clipboard = QApplication::clipboard();
	QStringList buffer;
	for (QList<LogEntry>::ConstIterator iter = m_lines.constBegin(); iter != m_lines.constEnd(); iter++)
	{
		const QString timeStamp = QDateTime::fromMSecsSinceEpoch(iter->first).toString(FMT_TIMESTAMP);
		buffer << (timeStamp + iter->second);
	}
	clipboard->setText(buffer.join("\r\n"));
}

bool LogFileModel::saveToLocalFile(const QString &fileName) const
{
	QFile file(fileName);
	if(!file.open(QIODevice::WriteOnly | QIODevice::Truncate))
	{
		return false;
	}

	QTextStream stream(&file);
	stream.setCodec("UTF-8");
	stream.setGenerateByteOrderMark(true);

	for(QList<LogEntry>::ConstIterator iter = m_lines.constBegin(); iter != m_lines.constEnd(); iter++)
	{
		const QString timeStamp = QDateTime::fromMSecsSinceEpoch(iter->first).toString(FMT_TIMESTAMP);
		stream << timeStamp << iter->second << QLatin1String("\r\n");
		if(stream.status() != QTextStream::Status::Ok)
		{
			file.close();
			return false;
		}
	}

	stream.flush();
	if(stream.status() != QTextStream::Status::Ok)
	{
		file.close();
		return false;
	}

	file.close();
	return true;
}

///////////////////////////////////////////////////////////////////////////////
// Slots
///////////////////////////////////////////////////////////////////////////////

void LogFileModel::addLogMessage(const QUuid &jobId, const qint64 &timeStamp, const QString &text)
{
	beginInsertRows(QModelIndex(), m_lines.count(), m_lines.count());

	if(m_firstLine)
	{
		m_firstLine = false;
		m_lines.clear();
	}

	const QStringList lines = text.split("\n");
	for(QStringList::ConstIterator iter = lines.constBegin(); iter != lines.constEnd(); iter++)
	{
		m_lines << qMakePair(timeStamp, (*iter));
	}

	endInsertRows();
}