--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/beta.php	Tue Jan 11 20:43:12 2011 +0200
@@ -0,0 +1,251 @@
+<?
+$pageCSS = array("http://tnsp.org/docs1.css", "luk.css");
+$pageCharset = "iso-8859-15";
+$luokkaDefault = "TTE9SNO";
+$mapFile = "kartta.png";
+$classFile = "luokkatilat.txt";
+$cacheFile = "coursecache.txt";
+$baseURI = "http://tnsp.org/luk/?";
+$infoURI = "http://www.oamk.fi/opiskelijalle/rakenne/opinto-opas/koulutusohjelmat/?sivu=oj&kieli=FI&opas=2010-2011&vuosi=10S11K&koodi1=";
+
+$showDays = 6;
+$dayNames = array("Maanantai", "Tiistai", "Keskiviikko", "Torstai", "Perjantai", "Lauantai", "Sunnuntai");
+
+
+require "mcommon.inc.php";
+require "merrors.inc.php";
+
+function getHour($hour)
+{
+  return "<br />".($hour + 8).":15 - ".($hour + 9).":00<br /><br />";
+}
+
+function checkClassID(&$id)
+{
+  global $luokkaDefault;
+  if (!preg_match("#^[A-Z]{3}\d\S+#", $id)) {
+    errorMsg("Virhe! Luokan täytyy olla muotoa <b>XXXnXXX</b>, käytetään vakioavoa <b>".$luokkaDefault."</b>.");
+    $id = $luokkaDefault;
+    return FALSE;
+  } else
+    return TRUE;
+}
+
+
+// Check given parameters
+if (isset($_GET["luokka"])) {
+  $luokka = $_GET["luokka"];
+  if (checkClassID($luokka)) {
+    setcookie("lukluokka", $luokka, time() + 365*24*60*60); // expire in a year
+  }
+} else
+if (isset($_COOKIE["lukluokka"])) {
+  $luokka = $_COOKIE["lukluokka"];
+  checkClassID($luokka);
+} else {
+  errorMsg("Luokkaa ei asetettu, käytetään vakioarvoa <b>".$luokkaDefault."</b>.");
+  $luokka = $luokkaDefault;
+}
+
+
+if (isset($_GET["tila"])) {
+  $tila = $_GET["tila"];
+  echo "Luokkatilan n&auml;ytt&ouml;moodi ei viel&auml; tuettu.<br />\n";
+  exit;
+
+  $fp = @fopen($classFile, "rb");
+  if ($fp) {
+    fclose($fp);
+  }
+}
+
+  
+function matchCourse($id)
+{
+  global $cache, $infoURI, $cacheDirty;
+
+  // Check if course exists in cache
+  if (!isset($cache[$id])) {
+    $cacheDirty = TRUE;
+    // Not cached, try to fetch data
+    $data = @file_get_contents($infoURI.$id);
+    if ($data !== FALSE) {
+      if (preg_match("#<td class=\"smallheadercell\"><strong>(.+?)\s+(\d+)\s*op\s*</strong></td>#", $data, $m)) {
+        // Add data to cache
+        $cache[$id] = array("desc" => $m[1], "op" => intval($m[2]));
+      }
+    }
+  }
+  
+  if (isset($cache[$id]))
+    return "<a target=\"_blank\" title=\"".htmlentities($id." - ".$cache[$id]["op"]." op").
+    "\" href=\"".htmlentities($infoURI.$id)."\">".htmlentities($cache[$id]["desc"])."</a>";
+  else
+    return htmlentities($id);
+}
+
+
+function matchClass($matches)
+{
+  global $baseURI;
+  return "<b><a href=\"".$baseURI."tila=".$matches[1]."\">".$matches[1]."</a></b> ".$matches[2];
+}
+
+
+// Global cache for course data
+$cache = array();
+$cacheDirty = FALSE;
+
+
+// Try to read cachefile, if we can get file lock on it
+$fp = @fopen($cacheFile, "rb");
+if ($fp) {
+  if (flock($fp, LOCK_SH)) { 
+    require($cacheFile);
+    flock($fp, LOCK_UN);
+  }
+  fclose($fp);
+}
+
+
+if (file_exists($luokka.".data")) {
+  require($luokka.".data");
+} else {
+  errorMsg("Luokan ".htmlentities($luokka)." datatiedostoa ei löytynyt!");
+}
+
+$totalHours = 0;
+$totalGrouped = 0;
+$dayHours = array();
+for ($day = 0; $day < $showDays; $day++) 
+  $dayHours[$day]["total"] = $dayHours[$day]["grouped"] = 0;
+
+foreach ($classDefs as $id => $data) {
+  $h = $data["hours"];
+  
+  $totalHours += $h;
+  $dayHours[$data["day"]]["total"] += $h;
+
+  if (!$data["grouped"]) {
+    $totalGrouped += $h;
+    $dayHours[$data["day"]]["grouped"] += $h;
+  }
+}
+
+for ($day = $showDays - 1; $day >= 0; $day--) {
+  if ($dayHours[$day]["total"] == 0)
+    $showDays--;
+  else
+    break;
+}
+
+
+
+$pageTitle = $luokka." / ".join("; ", $classInfo["info"]);
+printPageHeader($pageTitle);
+echo "<h1>".$pageTitle."</h1>\n".
+"<p>".join("; ", $classInfo["general"])."</p>\n";
+
+echo "<table class=\"timetable\">".
+" <tr>\n  <th></th>\n";
+for ($day = 0; $day < $showDays; $day++) {
+  echo  "  <th class=\"days\">".$dayNames[$day]."</th>\n";
+}
+echo " </tr>\n";
+
+for ($hour = 0; $hour < $classInfo["maxhours"]; $hour++) {
+  echo " <tr>\n";
+  echo "  <th class=\"hours\">".getHour($hour)."</th>\n";
+  for ($day = 0; $day < $showDays; $day++) {
+    if (isset($classHourTable[$hour][$day])) {
+      $h = $classHourTable[$hour][$day];
+        
+      if ($h < 1) {
+        if ($h == 0) {
+          $n = 0;
+          for ($i = $hour; $i < $classInfo["maxhours"]; $i++)
+          if ($classHourTable[$i][$day] == $h) {
+            $classHourTable[$i][$day] = -1;
+            $n++;
+          } else
+            break;
+          echo "  <td rowspan=\"".$n."\" class=\"clnothing\"></td>\n";
+        }
+      } else
+      if (isset($classDefs[$h])) {
+        if (!isset($classDefs[$h]["done"])) {
+          $classDefs[$h]["done"] = true;
+          $i = $classDefs[$h];
+          $d = $classDefs[$h]["data"];
+          
+          $isSplit = preg_match("/^[A-Z]\d{6}$/", $d[1]);
+          
+          echo "  <td rowspan=\"".$i["hours"].
+          "\" class=\"".($isSplit || $i["grouped"] ? "clgrouped" : "clnormal")."\">";
+          
+          if ($isSplit) {
+            echo "<table>".
+            "<tr><td>".matchCourse($d[0])."</td><td>".matchCourse($d[1])."</td></tr>";
+            for ($j = 2; $j < count($d); $j += 2)
+              echo "<tr><td>".htmlentities($d[$j])."</td><td>".(isset($d[$j+1]) ? htmlentities($d[$j+1]) : "")."</td></tr>";
+            echo "</table>";
+          } else {
+            echo matchCourse($d[0])."<br />";
+            for ($j = 1; $j < count($d); $j++)
+              echo htmlentities($d[$j])."<br />";
+          }
+          echo "</td>\n";
+        }
+      } else
+        errorMsg("Internal error cell $hour / $day : hour id $h does not exist!");
+    } else
+      errorMsg("Internal error, cell $hour / $day does not exist.");
+  }
+  echo " </tr>\n";
+}
+
+echo " <tr>\n  <td>Tunteja (<b>ryhmä</b>)</td>\n";
+for ($day = 0; $day < $showDays; $day++) {
+  echo  "  <td>".$dayHours[$day]["total"]."h (<b>".$dayHours[$day]["grouped"]."h</b>)</td>\n";
+}
+echo " </tr>\n";
+
+echo "</table>";
+
+
+// Show error messages
+if ($errorSet) {
+  echo "<ul>\n";
+  foreach ($errorMsgs as $msg)
+    echo "<li>$msg</li>\n";
+  echo "</ul>\n";
+}
+
+printPageFooter();
+
+
+// Dump the course data cache, but only if it has changed
+if ($cacheDirty) {
+  // First try append mode
+  $fp = @fopen($cacheFile, "rb+");
+
+  // If file didn't exist, try write mode
+  if (!$fp)
+    $fp = @fopen($cacheFile, "wb");
+
+  if ($fp) {
+    // Use locking to prevent concurrent access and dump data
+    if (flock($fp, LOCK_EX)) {
+      ftruncate($fp, 0);
+      fwrite($fp, "<?\n\$cache = array(\n");
+      foreach ($cache as $id => $data) {
+        fwrite($fp, "  \"".addslashes($id)."\" => array(\"desc\" => \"".
+        addslashes($data["desc"])."\", \"op\" => ".$data["op"]."),\n");
+      }
+      fwrite($fp, ");\n?>");
+    }
+    fclose($fp);
+  }
+}
+
+?>
\ No newline at end of file