<?php

	function logStart(&$oDB, $sType = '', $sQuery = '', $aLanguageList = array())
	{
		$aStartTime = explode('.',microtime(true));
		if (!isset($aStartTime[1])) $aStartTime[1] = '0';

		$sOutputFormat = '';
		if (isset($_GET['format'])) $sOutputFormat = $_GET['format'];

		if ($sType == 'reverse')
		{
			$sOutQuery = (isset($_GET['lat'])?$_GET['lat']:'').'/';
			if (isset($_GET['lon'])) $sOutQuery .= $_GET['lon'];
			if (isset($_GET['zoom'])) $sOutQuery .= '/'.$_GET['zoom'];
		}
		else
			$sOutQuery = $sQuery;

		$hLog = array(
				date('Y-m-d H:i:s',$aStartTime[0]).'.'.$aStartTime[1],
				$_SERVER["REMOTE_ADDR"],
				$_SERVER['QUERY_STRING'],
				$sOutQuery,
				$sType,
				$sOutputFormat
				);

		if (CONST_Log_DB)
		{
			if (isset($_GET['email']))
				$sUserAgent = $_GET['email'];
			elseif (isset($_SERVER['HTTP_REFERER']))
				$sUserAgent = $_SERVER['HTTP_REFERER'];
			elseif (isset($_SERVER['HTTP_USER_AGENT']))
				$sUserAgent = $_SERVER['HTTP_USER_AGENT'];
			else
				$sUserAgent = '';
			$sSQL = 'insert into new_query_log (type,starttime,query,ipaddress,useragent,language,format,searchterm)';
			$sSQL .= ' values ('.getDBQuoted($sType).','.getDBQuoted($hLog[0]).','.getDBQuoted($hLog[2]);
			$sSQL .= ','.getDBQuoted($hLog[1]).','.getDBQuoted($sUserAgent).','.getDBQuoted(join(',',$aLanguageList)).','.getDBQuoted($sOutputFormat).','.getDBQuoted($hLog[3]).')';
			$oDB->query($sSQL);
		}

		return $hLog;
	}

	function logEnd(&$oDB, $hLog, $iNumResults)
	{
		$aEndTime = explode('.',microtime(true));
		if (!$aEndTime[1]) $aEndTime[1] = '0';
		$sEndTime = date('Y-m-d H:i:s',$aEndTime[0]).'.'.$aEndTime[1];

		if (CONST_Log_DB)
		{
			$sSQL = 'update new_query_log set endtime = '.getDBQuoted($sEndTime).', results = '.$iNumResults;
			$sSQL .= ' where starttime = '.getDBQuoted($hLog[0]);
			$sSQL .= ' and ipaddress = '.getDBQuoted($hLog[1]);
			$sSQL .= ' and query = '.getDBQuoted($hLog[2]);
			$oDB->query($sSQL);
		}

		if (CONST_Log_File)
		{
			$aOutdata = array($hLog[0], $sEndTime, $iNumResults, $hLog[4], $hLog[2]);
			$fLog = fopen(CONST_Log_File, 'a');
			flock($fLog, LOCK_EX);
			fputcsv($fLog, $aOutdata);
			fflush($fLog);
			flock($fLog, LOCK_UN);
			fclose($fLog);
		}

	}