<?php
define ('DBASE',"wview_dbase");

date_default_timezone_set("Europe/Berlin");
setlocale(LC_ALL, 'de_DE@euro', 'de_DE', 'deu_deu');

$dbh = new PDO('sqlite:'.DBASE);
$dbh->exec("set names 'utf8'");

function holWert($t,$wert,$minmax)
{
	global $dbh;
	
	if($minmax==1)
	{
		$tag = strftime("%d",$t)+0;
//		echo "#Tag= $tag";
//		$query = "select $wert from archive where dateTime>=$t and dateTime<($t+86400)";
		$query = "select $wert from archive where dateTime>=$t and dateTime<($t+94000)"; // and strftime('%d',datetime(dateTime,'unixepoche','localtime'))==$tag";
	}
	else
	{
		$query = "select $wert from archive where dateTime=$t";
	}
	$sql = $dbh->prepare($query);
	$sql->execute();
	$row = $sql->fetch(PDO::FETCH_ASSOC);
//	echo "#1: $query\n2: ";
//	print_r($row);
//	echo "\n#";
	return ($row[$wert]);
}


function getTemp($t)
{
	$r = holwert($t,"outTemp",0);
	return(round((($r - 32 ) * 5 / 9),1));
}

function getPress($t)
{
	$r = holwert($t,"barometer",0);
	return(round($r/0.0295299));
}

function getHumi($t)
{
	$r = holwert($t,"outHumidity",0);
	return($r);
}

function getRain($t,$h,$m)
{
	global $dbh;
	
	$curtime = (($h*60)+$m)*60;
	$t -= $curtime;						// akt Tag, 0h00 berechnen
	if($curtime==0)
	{
		$curtime=86400;
	}
	$query = "select sum(rain) from archive where dateTime>=$t and dateTime<($t+$curtime)";
	$sql = $dbh->prepare($query);
	$sql->execute();
	$row = $sql->fetch(PDO::FETCH_ASSOC);
//	echo "#1: $query\n2: $r\n3: $row\n#\n";
	return(round($row["sum(rain)"]*25.4,1));
}

function getWindDir($t)
{
	$r = holwert($t,"windDir",0);
	return(round($r));
}

function getWindSpeed($t)
{
	$r = holwert($t,"windSpeed",0);
	return(round($r*1.609344));
}

function getMaxTemp($t)
{
	$r = holWert($t,"max(outTemp)",1);
	return(round((($r - 32 ) * 5 / 9),1));
}

function getMaxPress($t)
{
	$r = holWert($t,"max(barometer)",1);
	return(round($r/0.0295299));
}

function getMaxHumi($t)
{
	$r = holWert($t,"max(outHumidity)",1);
	return($r);
}

function getMaxWindSpeed($t)
{
	$r = holWert($t,"max(windSpeed)",1);
	return(round($r*1.609344,1));
}

function getMinTemp($t)
{
	$r = holWert($t,"min(outTemp)",1);
	return(round((($r - 32 ) * 5 / 9),1));
}

function getMinPress($t)
{
	$r = holWert($t,"min(barometer)",1);
	return(round($r/0.0295299));
}

function getMinHumi($t)
{
	$r = holWert($t,"min(outHumidity)",1);
	return($r);
}

// echo '# im php call #';

$YY = 0;
$YY = $_POST["Jahr"];
$MM = $_POST["Monat"];
$DD = $_POST["Tag"];
$hh = $_POST["Stunde"];
$mm = $_POST["Minute"]; 
$anz = $_POST["Anzahl"];


$utime = mktime($hh,$mm,0,$MM,$DD,$YY);

// DEBUG-AUsgabe: Achtung, diese IMMER in # ... # einpacken, dann wird sie
// von dem auswertenden Javascript ausgeblendet
//$tz = date_default_timezone_get();
//echo "#$tz\n$YY-$MM-$DD  <$hh:$mm> =$anz= +$utime+ \n#";

$paket = Array (
		
		"Temp" => 0,
		"Humi" => 0,
		"Press" =>0,
		"Rain" => 0,
		"WindDir" => 0,
		"WindSpeed" => 0,
		"TempMx" => 0,
		"HumiMx" => 0,
		"PressMx" => 0,
		"Time" => 0,
);

$erg = array(array());


function buildMinMaxPaket($ut)
{
	global $paket;
	$paket["Temp"] = getMinTemp($ut);
	$paket["Humi"] = getMinHumi($ut);
	$paket["Press"] = getMinPress($ut);
	$paket["Rain"] = getRain($ut,0,0);
	$paket["WindSpeed"] = getMaxWindSpeed($ut);
	$paket["TempMx"] = getMaxTemp($ut);
	$paket["HumiMx"] = getMaxHumi($ut);
	$paket["PressMx"] = getMaxPress($ut);
	$paket["Time"] = date("Y-m-d H:i",$ut);
}

if ($YY!="")
{
	if($anz==0)
	{
		if (($hh != 0) || ($mm != 0)) 
		{
			$paket["Temp"] = getTemp($utime);
			$paket["Humi"] = getHumi($utime);
			$paket["Press"] = getPress($utime);
			$paket["Rain"] = getRain($utime,$hh,$mm);
			$paket["WindDir"] = getWindDir($utime);
			$paket["WindSpeed"] = getWindSpeed($utime);
			$paket["Time"] = date("Y-m-d H:i",$utime);
		}
		else
		{
			buildMinMaxPaket($utime);
		}
		echo json_encode($paket);
	}
	else
	{
		for($i=0; $i<$anz; $i++)
		{
			buildMinMaxPaket($utime);
			$erg[$i] = $paket;
			$DD+=1;
			$utime = mktime($hh,$mm,0,$MM,$DD,$YY);
		}
		echo json_encode($erg);
	}
}
		
?>