#include "nmDataLogFile.h"
#include <QFile>
#include <QDateTime>
#include <QTextStream>

nmDataLogFile::nmDataLogFile(QObject *parent)
    : QObject(parent)
    , m_textStream(NULL)
    , m_logFile(new QFile("nmDebug.log"))
{
    if (m_logFile->open(QIODevice::WriteOnly | QIODevice::Append)) {
        m_textStream = new QTextStream(m_logFile);
        m_textStream->setCodec("UTF-8");
    }
}

nmDataLogFile::~nmDataLogFile()
{
    if (m_textStream != NULL) {
        delete m_textStream;
        m_textStream = NULL;
    }

    if (m_logFile != NULL) {
        m_logFile->close();
        delete  m_logFile;
        m_logFile = NULL;
    }
}

nmDataLogFile* nmDataLogFile::s_instance = NULL;

nmDataLogFile* nmDataLogFile::getInstance()
{
    if (NULL == s_instance) {
        s_instance = new nmDataLogFile();
    }
    return s_instance;
}

void nmDataLogFile::writeLog(const QString &message)
{
    if (m_textStream == NULL || m_logFile == NULL) {
        return;
    }

    *m_textStream << QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss") << " - " << message << endl;
    m_logFile->flush();
}