/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#if defined(_WIN32)
#include <windows.h>
#endif


#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>

#include "updatelogging.h"

UpdateLog::UpdateLog()
    : logFP(nullptr)
    , sourcePath(nullptr)
{
}

void UpdateLog::Init(NS_tchar* sourcePathParam,
                     const NS_tchar* fileName,
                     const NS_tchar* alternateFileName,
                     bool append)
{
    if (logFP)
        return;

    sourcePath = sourcePathParam;
    NS_tchar logFile[MAXPATHLEN];
    NS_tsnprintf(logFile, sizeof(logFile)/sizeof(logFile[0]),
                 NS_T("%s/%s"), sourcePathParam, fileName);

    if (alternateFileName && NS_taccess(logFile, F_OK))
    {
        NS_tsnprintf(logFile, sizeof(logFile)/sizeof(logFile[0]),
                     NS_T("%s/%s"), sourcePathParam, alternateFileName);
    }

    logFP = NS_tfopen(logFile, append ? NS_T("a") : NS_T("w"));
}

void UpdateLog::Finish()
{
    if (!logFP)
        return;

    fclose(logFP);
    logFP = nullptr;
}

void UpdateLog::Flush()
{
    if (!logFP)
        return;

    fflush(logFP);
}

void UpdateLog::Printf(const char *fmt, ... )
{
    if (!logFP)
        return;

    va_list ap;
    va_start(ap, fmt);
    vfprintf(logFP, fmt, ap);
    fprintf(logFP, "\n");
    va_end(ap);
}

void UpdateLog::WarnPrintf(const char *fmt, ... )
{
    if (!logFP)
        return;

    va_list ap;
    va_start(ap, fmt);
    fprintf(logFP, "*** Warning: ");
    vfprintf(logFP, fmt, ap);
    fprintf(logFP, "***\n");
    va_end(ap);
}