ordersprinter/webapp/php/tablemap.php

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2020-11-19 22:47:44 +01:00
<?php
require_once (__DIR__. '/globals.php');
require_once (__DIR__. '/dbutils.php');
require_once (__DIR__. '/roomtables.php');
class TableMap {
var $img = null;
public function readImage($filename) {
$fileContent = file_get_contents($filename);
$this->img = imagecreatefromstring($fileContent);
// now scale image
$width = imagesx($this->img);
$font = 5;
$fontwidthInPixel = imagefontwidth($font);
$maxWidth = $fontwidthInPixel * 300;
if (function_exists('imagescale')) {
$this->img = imagescale($origimg, $maxWidth);
// PHP 5.5 is needed for image scaling - so catch in case of lower version
}
}
public function insertRectangle() {
imagerectangle($this->img, $x0, $y0, $x0+$width*$cols, $y0+$height*$rows, $color);
}
public function outputImage() {
header("Content-type: image/png");
imagepng($this->img);
}
public function destroyImage() {
imagedestroy($this->img);
}
public function insertText($x,$y,$txt) {
$width = imagesx($this->img);
$height = imagesy($this->img);
$font = 5;
$fontwidthInPixel = imagefontwidth($font);
$minWidthOfTextArea = $fontwidthInPixel * strlen($txt);
$textarea = imagecreate ( $minWidthOfTextArea + 4,30 );
$white = imagecolorallocate($textarea, 255, 255, 255);
$black = imagecolorallocate($textarea, 0, 0, 0);
$posx = $width / 100.0 * $x;
$posy = $height / 100.0 * $y;
imagestring ( $textarea , 5 , 2 , 2 , $txt , $black );
imagecopymerge($this->img, $textarea, $posx , $posy, 0, 0, $minWidthOfTextArea + 4, imagesy($textarea), 100);
imagedestroy($textarea);#
}
public function insertStrings($texts) {
foreach($texts as $aText) {
$x = $aText["posx"];
$y = $aText["posy"];
$text = $aText["text"];
$this->insertText($x, $y, $text);
}
}
public static function getRoomTableMap() {
$pdo = DbUtils::openDbAndReturnPdoStatic();
$sql = "SELECT id,roomname,IFNULL(printer,0) as printer FROM %room% WHERE removed is null";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute();
$result = $stmt->fetchAll();
$rooms = array();
foreach($result as $row) {
$roomid = $row["id"];
$tables = self::getTableMapCore($pdo, $roomid);
$rooms[] = array("name" => $row["roomname"],"printer" => $row["printer"], "id" => $roomid, "tables" => $tables);
}
echo json_encode($rooms);
}
public static function getTableMap($roomid) {
$pdo = DbUtils::openDbAndReturnPdoStatic();
$tablemap = self::getTableMapCore($pdo, $roomid);
echo json_encode($tablemap);
}
private static function getCircleSizeFactor($pdo) {
$userid = $_SESSION['userid'];
$sql = "SELECT tablebtnsize FROM %user% WHERE id=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($userid));
$row = $stmt->fetchObject();
$pref = $row->tablebtnsize;
if (is_null($pref)) {
$pref = 0;
}
return intval($pref)+1;
}
public static function getTableMapCore($pdo,$roomid) {
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$sql = "SELECT id,tableno as name,active FROM %resttables% WHERE roomid=? AND removed is null AND active='1'";
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$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($roomid));
$tables = $stmt->fetchAll();
$tablemap = array();
foreach ($tables as $aTable) {
$tableid = $aTable["id"];
$pos = self::getTablePosition($pdo,$tableid);
if (is_null($pos)) {
$tablemap[] = array("id" => $tableid,"name" => $aTable["name"], "haspos" => 0);
} else {
$tablemap[] = array("id" => $tableid, "name" => $aTable["name"],"haspos" => 1, "pos" => $pos);
}
}
return($tablemap);
}
public static function deleteTableMap($pdo,$roomid) {
$sql = "DELETE FROM %tablemaps% WHERE roomid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($roomid));
$sql = "SELECT id FROM %resttables% WHERE roomid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($roomid));
$tables = $stmt->fetchAll();
foreach($tables as $aTable) {
$sql = "DELETE FROM %tablepos% WHERE tableid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($aTable["id"]));
}
}
private static function getUserTmPreference($pdo) {
if(session_id() == '') {
session_start();
}
if (!isset($_SESSION['angemeldet']) || !$_SESSION['angemeldet']) {
return 0;
} else {
$sql = "SELECT prefertablemap AS result FROM %user% WHERE id=?";
$stmt = $pdo->prepare(Dbutils::substTableAlias($sql));
$stmt->execute(array($_SESSION['userid']));
$row = $stmt->fetchObject();
$prefer = 1;
if ($row != null) {
$prefer = $row->result;
if ($prefer == null) {
$prefer = 1;
}
}
return ($prefer);
}
}
public static function getTableMapPreferences($pdo) {
$sql = "SELECT id FROM %room% WHERE removed is null";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute();
$roomIds = $stmt->fetchAll();
$roominfo = array();
foreach ($roomIds as $aRoom) {
$roomid = $aRoom["id"];
$userTmPref = self::getUserTmPreference($pdo);
$sql = "SELECT COUNT(id) as number FROM %tablemaps% WHERE roomid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($roomid));
$row = $stmt->fetchObject();
$imgAvailable = false;
if ($row->number > 0) {
$imgAvailable = true;
}
$userWantsMapForThisTable = 0;
if ((intval($userTmPref) == 1) && $imgAvailable) {
$userWantsMapForThisTable = 1;
}
$tablepositions = null;
if ($userWantsMapForThisTable == 1) {
$tablepositions = self::getTableMapCore($pdo,$roomid);
}
$roominfo[] = array("roomid" => $roomid, "displaymap" => $userWantsMapForThisTable,"tablepositions" => $tablepositions);
}
echo json_encode($roominfo);
}
public static function uploadimg($roomid) {
if ($_FILES['tmimgfile']['error'] != UPLOAD_ERR_OK //checks for errors
&& is_uploaded_file($_FILES['tmimgfile']['tmp_name'])) { //checks that file is uploaded
//header("Location: ../infopage.html?e=manager.html=Kann_Datei_nicht_laden.");
echo json_encode(array("status" => "FAILED","msg" => "Kann Datei nicht laden."));
return;
}
if(!file_exists($_FILES['tmimgfile']['tmp_name']) || !is_uploaded_file($_FILES['tmimgfile']['tmp_name'])) {
//header("Location: ../infopage.html?e=manager.html=Datei_nicht_angegeben.");
echo json_encode(array("status" => "FAILED","msg" => "Datei nicht angegeben."));
return;
}
$content = file_get_contents($_FILES['tmimgfile']['tmp_name']);
if ($_FILES['tmimgfile']['error'] != UPLOAD_ERR_OK //checks for errors
&& is_uploaded_file($_FILES['userfile']['tmp_name'])) { //checks that file is uploaded
//header("Location: ../infopage.html?e=manager.html=Kann_Datei_nicht_laden.");
echo json_encode(array("status" => "FAILED","msg" => "Kann Datei nicht laden!"));
return;
}
if (strlen($content) > 2097152) {
//header("Location: ../infopage.html?e=manager.html=Logobild_muss_kleiner_als_64_Kilobytes_sein!");
echo json_encode(array("status" => "FAILED","msg" => "Bild muss kleiner als 2 Megabytes sein!"));
return;
}
try {
$img = imagecreatefromstring($content);
$wx = imagesx($img);
$wy = imagesy($img);
$pdo = DbUtils::openDbAndReturnPdoStatic();
$pdo->beginTransaction();
self::deleteTableMap($pdo,$roomid);
$sql = "INSERT INTO %tablemaps% (`id`,`img`,`sizex`,`sizey`,`roomid`) VALUES(NULL,?,?,?,?)";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($content,$wx,$wy,$roomid));
$pdo->commit();
echo json_encode(array("status" => "OK","msg" => "Bild hochgeladen!"));
} catch (Exception $e) {
$pdo->rollBack();
echo json_encode(array("status" => "FAILED","msg" => "Bild konnte nicht hochgeladen werden!"));
}
}
private static function getAllTablesOfRoom($pdo,$roomid) {
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$sql = "SELECT id FROM %resttables% WHERE roomid=? AND active=?";
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$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
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$stmt->execute(array($roomid,1));
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$tables = $stmt->fetchAll();
return $tables;
}
public static function getTableMapImgAsPng($pdo,$roomid,$tableid,$tablelist,$showBubbles) {
if(session_id() == '') {
session_start();
}
$sizefactor = intval(self::getCircleSizeFactor($pdo));
if (is_null($roomid)) {
$sql = "SELECT roomid FROM %resttables% WHERE id=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($tableid));
$row = $stmt->fetchObject();
$roomid = $row->roomid;
}
$sql = "SELECT img,sizex,sizey from %tablemaps% WHERE roomid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($roomid));
if ($stmt->rowCount() > 0) {
$row = $stmt->fetchObject();
header("Content-Disposition: attachment; filename=room-map.png");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Pragma: no-cache");
header("Expires: Mon, 20 Dec 1998 01:00:00 GMT" );
header('Content-Type: ' . image_type_to_mime_type(IMAGETYPE_PNG));
$img = $row->img;
$sizex = $row->sizex;
$sizey = $row->sizey;
$php_img = imagecreatefromstring($img);
if ($showBubbles) {
$tables = self::getAllTablesOfRoom($pdo,$roomid);
foreach($tables as $aTable) {
$sql = "SELECT x,y FROM %tablepos% WHERE tableid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($aTable["id"]));
$affectedRows = $stmt->rowCount();
if ($affectedRows == 1) {
$positions = $stmt->fetchAll();
foreach ($positions as $pos)
$greenCircle = imagecolorallocate($php_img, 0, 255, 0);
$redCircle = imagecolorallocate($php_img, 255, 0, 0);
$black = imagecolorallocate($php_img, 0, 0, 0);
$width = imagesx($php_img);
$posx = $sizex / 100 * intval($pos["x"]);
$posy = $sizey / 100 * intval($pos["y"]);
$circsize = $width/50 * $sizefactor;
$bordersize = 3*$sizefactor/2;
imagefilledellipse($php_img, $posx, $posy, $circsize + $bordersize,$circsize + $bordersize, $black);
if ((!is_null($tableid)) && ($tableid == $aTable["id"])) {
imagefilledellipse($php_img, $posx, $posy, $circsize + $bordersize, $circsize + $bordersize, $redCircle);
}
if (!is_null($tablelist)) {
foreach($tablelist as $aTableInList) {
if ($aTable["id"] == $aTableInList["id"]) {
imagefilledellipse($php_img, $posx, $posy, $circsize + $bordersize, $circsize + $bordersize, $redCircle);
break;
}
}
}
imagefilledellipse($php_img, $posx, $posy, $circsize, $circsize, $greenCircle);
}
}
} // showBubbles
imagepng($php_img, NULL);
imagedestroy($php_img);
} else {
header('Content-Type: image/png');
readfile('../img/empty-room.png');
}
}
public static function getUnpaidTablesMapImgAsPng($roomid,$showBubbles) {
$pdo = DbUtils::openDbAndReturnPdoStatic();
$roomtables = new Roomtables();
$unpaidTables = $roomtables->getUnpaidTablesCore($pdo, $roomid);
self::getTableMapImgAsPng($pdo,$roomid,null,$unpaidTables,$showBubbles);
}
private static function getTablePosition($pdo,$tableid) {
$sql = "SELECT x,y FROM %tablepos% WHERE tableid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($tableid));
if ($stmt->rowCount() > 0) {
$row = $stmt->fetchObject();
return array("x" => $row->x, "y" => $row->y);
} else {
return null;
}
}
public static function setPosition($tableid,$x,$y) {
$pdo = DbUtils::openDbAndReturnPdoStatic();
$sql = "SELECT roomid FROM %resttables% WHERE id=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($tableid));
$row = $stmt->fetchObject();
$roomid = $row->roomid;
$sql = "SELECT count(id) as number from %tablemaps% WHERE roomid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($roomid));
$row = $stmt->fetchObject();
if ($row->number > 0) {
$sql = "DELETE FROM %tablepos% WHERE tableid=?";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($tableid));
$sql = "INSERT INTO %tablepos% (`id`,`tableid`,`x`,`y`) VALUES(NULL,?,?,?)";
$stmt = $pdo->prepare(DbUtils::substTableAlias($sql));
$stmt->execute(array($tableid,$x,$y));
}
echo json_encode(array("status" => "OK"));
}
}
function isCurrentUserAdminOrManager() {
if(session_id() == '') {
session_start();
}
if (!isset($_SESSION['angemeldet']) || !$_SESSION['angemeldet']) {
// no user logged in
return false;
} else {
return ($_SESSION['is_admin'] || $_SESSION['right_manager']);
}
}
$command = $_GET["command"];
if ($command == 'getTableMapImgAsPng') {
$pdo = DbUtils::openDbAndReturnPdoStatic();
$showBubbles = true;
if (isset($_GET["showBubbles"])) {
if ($_GET["showBubbles"] == 0) {
$showBubbles = false;
}
}
$tableid = null;
if (isset($_GET["tableid"])) {
$tableid = $_GET["tableid"];
}
$roomid = null;
if (isset($_GET["roomid"])) {
$roomid = $_GET["roomid"];
}
TableMap::getTableMapImgAsPng($pdo,$roomid,$tableid,null, $showBubbles);
return;
} else if ($command == 'getTableMapPreferences') {
$pdo = DbUtils::openDbAndReturnPdoStatic();
TableMap::getTableMapPreferences($pdo);
return;
} else if ($command == 'getUnpaidTablesMapImgAsPng') {
$showBubbles = true;
if (isset($_GET["showBubbles"])) {
if ($_GET["showBubbles"] == 0) {
$showBubbles = false;
}
}
TableMap::getUnpaidTablesMapImgAsPng($_GET["roomid"],$showBubbles);
return;
}
if (!isCurrentUserAdminOrManager()) {
echo json_encode(array("status" => "ERROR", "code" => ERROR_NOT_AUTHOTRIZED, "msg" => ERROR_NOT_AUTHOTRIZED_MSG));
return;
}
if ($command == "getRoomTableMap") {
TableMap::getRoomTableMap();
} else if ($command == 'uploadimg') {
TableMap::uploadimg($_POST["roomid"]);
} else if ($command == 'setPosition') {
TableMap::setPosition($_POST['tableid'],$_POST['x'],$_POST['y']);
} else if ($command == 'getTableMap') {
TableMap::getTableMap($_GET["roomid"]);
} else if ($command == 'deleteTableMap') {
$pdo = DbUtils::openDbAndReturnPdoStatic();
TableMap::deleteTableMap($pdo,$_POST["roomid"]);
echo json_encode(array("status" => "OK"));
}
?>