// Copyright 2011 Google Inc. All Rights Reserved.
// Author: qianzhang@google.com (ken Zhang)

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "sagelog.h"

int sagelog_enabled=1;
int console_enabled = 1;
int trace_level = 3;
char log_filename[128]="/tmp/SageEncoder.log";

void _enable_native_log( )
{
  sagelog_enabled=1;
}
void _disable_native_log( )
{
  sagelog_enabled=0;
}

void _set_native_log( int level )
{
  if ( level == 0 ) {
    sagelog_enabled = 0;
    printf( "sagelog is disabled." );
  }
  else
  {
    sagelog_enabled = 1;
    trace_level = level;
    printf( "sagelog is enabled, \"%s\"\n", log_filename );
  }
}

void _sagelog( int type, int level, const char* cstr, ... )
{
  time_t ct;
  struct tm ltm;
  va_list args;
  char szInfo[1024*3];
  va_list va;
  FILE* fp;

  if ( !sagelog_enabled ) return;
  if ( type == _LOG_TRACE && level > trace_level ) return;

  fp = fopen( log_filename, "a" );
  if ( fp == NULL ) return;
  time(&ct); localtime_r( &ct, &ltm );


  va_start(va, cstr);

  snprintf( szInfo, sizeof(szInfo)-3, TEXT("%02d/%02d/%d %02d:%02d:%02d "), ltm.tm_mon+1, ltm.tm_mday, ltm.tm_year+1900,
      ltm.tm_hour, ltm.tm_min, ltm.tm_sec  );

  vsnprintf(szInfo + lstrlen(szInfo), (int)sizeof(szInfo)-lstrlen(szInfo)-3, cstr, va);
  lstrcat(szInfo, TEXT("\r\n"));
  fwrite( (char*)szInfo, 1, lstrlen(szInfo),  fp );

  if ( console_enabled )
    printf( "%s", szInfo );

  va_end(args);
  fclose( fp );
}

void _flog_setup( char* filename, int enable )
{
  if ( filename != NULL && filename[0] )
    strncpy( log_filename, filename, sizeof( log_filename ) );

  sagelog_enabled = enable;
}

char* _get_flog_path(  )
{
  return log_filename;
}

int _get_flog_state( )
{
  return sagelog_enabled;
}

int _flog_check()
{
  FILE* fp = fopen( "NATIVE_LOG.ENABLE", "r" );
  if ( fp != NULL )
  {
    sagelog_enabled = 1;
    fclose( fp );
    return 1;
  }
  return 0;
}