<?php
  $votefor = $_REQUEST["votefor"];

  // Returns a random RGB color (used to color the vote bars)
  function getRandomColor()
  {
       $r = rand(128,255);
       $g = rand(128,255);
       $b = rand(128,255);
       $color = dechex($r) . dechex($g) . dechex($b);
       echo "$color";
  }
  //Get the IP of the user
  $domain = $_SERVER["REMOTE_ADDR"];
  $today = date("m/d/Y");

  echo "<table id=\"tblResults\" align=\"center\">";

  //If votefor is null, then we're just viewing results, so don't log the IP
  if ($votefor != "")
  {

    //Load the addresses XML file
    $doc = new DOMDocument();
    $doc->load("xml/addresses.xml");
    $addresses = $doc->getElementsByTagName("address");
    $pVoted = false;
    $pFound = false;


    if ($pFound == false) //Add new node for IP and date to addresses.xml
    {
         echo "<tr><td colspan=\"3\" class=\"message\">Thanks for voting for $votefor! You can vote again tomorrow.</td></tr>";

         $newAddy = $doc->getElementsByTagName('addresses')->item(0);
         $newAddressElement = $doc->createElement('address');

         $newLastVisitElement = $doc->createElement('lastvisit');
         $newAddressElement->appendChild($newLastVisitElement);
         $newIPElement = $doc->createElement('ip');
         $newAddressElement->appendChild($newIPElement);

         $dayvalue = $doc->createTextNode($today);
         $dayvalue = $newLastVisitElement->appendChild($dayvalue);

         $ipvalue = $doc->createTextNode($domain);
         $ipvalue = $newIPElement->appendChild($ipvalue);

         $newAddy->appendChild($newAddressElement);

         $doc->save("xml/addresses.xml");
    }
    else
    {
         echo "<tr><td colspan=\"3\" class=\"message\">Thanks for voting for $votefor!</td></tr>";
    }
    // Update the vote
    $doc = new DOMDocument();
    $doc->load("xml/results.xml");
    $pollitems = $doc->getElementsByTagName("pollitem");
    foreach( $pollitems as $pollitem )
    {
        $entries = $pollitem->getElementsByTagName("entryname");
        $entry = $entries->item(0)->nodeValue;
        if ($entry == $votefor)
        {
             $votes = $pollitem->getElementsByTagName("votes");
             $count = $votes->item(0)->nodeValue;
             $votes->item(0)->nodeValue = $count + 1;
             break;
        }
    }
    $doc->save("xml/results.xml");
    }
  }
  else
  {
     echo "<tr><td colspan=\"3\" class=\"message\">Poll Results</td></tr>";
  }

  // Get max vote count
  $doc = new DOMDocument();
  $doc->load("xml/results.xml");
  $maxvotes = 0;
  $pollitems = $doc->getElementsByTagName("pollitem");
  foreach( $pollitems as $pollitem )
  {
    $votes = $pollitem->getElementsByTagName("votes");
    $vote = $votes->item(0)->nodeValue;
    $maxvotes = $maxvotes + $vote;
  }
  // Generate the results table
  $doc = new DOMDocument();
  $doc->load("xml/results.xml");
  $pollitems = $doc->getElementsByTagName("pollitem");
  foreach( $pollitems as $pollitem )
  {
    $entries = $pollitem->getElementsByTagName("entryname");
    $entry = $entries->item(0)->nodeValue;
    $votes = $pollitem->getElementsByTagName("votes");
    $vote = $votes->item(0)->nodeValue;
    $tempWidth = $vote / $maxvotes;
    $tempWidth = 300 * $tempWidth;
    $votepct = round(($vote / $maxvotes) * 100);
    echo "<tr><td width=\"30%\" class=\"polls\">$entry</td>";
    echo "<td width=\"50%\" class=\"resultbar\"><div class=\"bar\" style=\"background-color: ";
        getRandomColor();
        echo "; width: $tempWidth px;\">$votepct%</div></td><td width=\"20%\">($vote votes)</td></tr>";
  }
  echo "<tr><td class=\"total\" colspan=\"3\">$maxvotes people have voted in this poll.</td>";
  echo "</table>";
?>