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<?php
session_start();
?>
<!DOCTYPE html>
<html>

<body>

  <?php
  $servername = "localhost";
  $username = "root";
  $password = "";
  $database = "quiz";

  $conn = mysqli_connect($servername, $username, $password, $database);
  $username = $_POST['usr'];
  $password = $_POST['pswd'];

  // Check connection
  if (!$conn) {
    die("Connection failed: " . mysqli_connect_error());
    //echo "Failed connection";
  }

  function shufflePath(&$array)
  {
    $keys = array_keys($array);
    shuffle($keys);
    foreach ($keys as $key) {
      $new[$key] = $array[$key];
    }
    $array = $new;
    return true;
  }

  function save_image($img, $fullpath)
  {
    $ch = curl_init($img);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
    $rawdata = curl_exec($ch);
    curl_close($ch);
    if (file_exists($fullpath)) {
      unlink($fullpath);
    }
    $fp = fopen($fullpath, 'x');
    fwrite($fp, $rawdata);
    fclose($fp);
  }

  // login button
  if (isset($_POST['log'])) {
    $_SESSION['username'] = $_POST['usr'];
    $_SESSION['password'] = $_POST['pswd'];
    // sql login code here
    header("Location: theme.php");
  }

  // Sign up button
  if (isset($_POST['sign'])) {
    echo "sign";
    $sql = "INSERT INTO users (username, password) VALUES ('$username', '$password')";
    //echo "log<br>";
    if ($conn->query($sql) === TRUE) {
      //echo "New record created successfully";
    } else {
      //echo "Error: " . $sql . "<br>" . $conn->error;
    }
  }


  if (isset($_POST['theme'])) {
    $_SESSION['backgroundURL'] = none;
    $_SESSION['theme'] = $_POST['thm'];
    $curl = curl_init();
    $searchstring = "{$_SESSION['theme']} background";
    $url = "https://www.bing.com/images/search?q=" . str_replace(" ", "%20", $searchstring) . "&qs=n&form=QBIR&qft=%20filterui%3Aimagesize-wallpaper&sp=-1&pq=" . str_replace(" ", "%20", $searchstring) . "&sc=8-20&sk=&cvid=1A7214553B3B41DDAA03F66B890ACB14";

    //retrieve images from bing search for the $searchstring provided above
    curl_setopt($curl, CURLOPT_URL, $url);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
    $result = curl_exec($curl);
    curl_close($curl);
    /*finds the url for each image, the first string(<a class="thumb" target="_blank" href="(.*?))
    is what comes before every image url, so we use that to find and isolate the url
*/
    preg_match_all('!<a class="thumb" target="_blank" href="(.*?)"!', $result,  $url_matches);
    $images = array_values(array_unique($url_matches[1]));


    $_SESSION['backgroundURL'] = $images[0];


    header("Location: character.php");
  }

  if (isset($_POST['name'])) {
    $_SESSION['name1'] = $_POST['name1'];
    $_SESSION['name2'] = $_POST['name2'];
    $_SESSION['name3'] = $_POST['name3'];
    $_SESSION['name4'] = $_POST['name4'];
    header("Location: questions.php");
  }

  if (isset($_POST['quest'])) {
    $_SESSION['question1'] = $_POST['question1'];
    $_SESSION['question2'] = $_POST['question2'];
    $_SESSION['question3'] = $_POST['question3'];
    $_SESSION['question4'] = $_POST['question4'];
    $_SESSION['question5'] = $_POST['question5'];
    header("Location: answer1.php");
  }

  if (isset($_POST['ans1'])) {
    $_SESSION['answer1for1'] = $_POST['answer1'];
    $_SESSION['answer2for1'] = $_POST['answer2'];
    $_SESSION['answer3for1'] = $_POST['answer3'];
    $_SESSION['answer4for1'] = $_POST['answer4'];
    header("Location: answer2.php");
  }

  if (isset($_POST['ans2'])) {
    $_SESSION['answer1for2'] = $_POST['answer1'];
    $_SESSION['answer2for2'] = $_POST['answer2'];
    $_SESSION['answer3for2'] = $_POST['answer3'];
    $_SESSION['answer4for2'] = $_POST['answer4'];
    header("Location: answer3.php");
  }

  if (isset($_POST['ans3'])) {
    $_SESSION['answer1for3'] = $_POST['answer1'];
    $_SESSION['answer2for3'] = $_POST['answer2'];
    $_SESSION['answer3for3'] = $_POST['answer3'];
    $_SESSION['answer4for3'] = $_POST['answer4'];
    header("Location: answer4.php");
  }

  if (isset($_POST['ans4'])) {
    $_SESSION['answer1for4'] = $_POST['answer1'];
    $_SESSION['answer2for4'] = $_POST['answer2'];
    $_SESSION['answer3for4'] = $_POST['answer3'];
    $_SESSION['answer4for4'] = $_POST['answer4'];
    header("Location: answer5.php");
  }

  if (isset($_POST['ans5'])) {
    $_SESSION['answer1for5'] = $_POST['answer1'];
    $_SESSION['answer2for5'] = $_POST['answer2'];
    $_SESSION['answer3for5'] = $_POST['answer3'];
    $_SESSION['answer4for5'] = $_POST['answer4'];
    header("Location: ready.php");
  }

  if (isset($_POST['readyYes'])) {
    $questionTrav = array(
      "takeQuizQ1.php",
      "takeQuizQ2.php",
      "takeQuizQ3.php",
      "takeQuizQ4.php",
      "takeQuizQ5.php"
    );
    $_SESSION['qTraversal'] = 0;
    $_SESSION['resultChr1'] = 0;
    $_SESSION['resultChr2'] = 0;
    $_SESSION['resultChr3'] = 0;
    $_SESSION['resultChr4'] = 0;
    shuffle($questionTrav);
    $_SESSION['shuffledarray'] = $questionTrav;
    $_SESSION['shuffledarray'][5] = "processResult.php";


    header("Location: " . $_SESSION['shuffledarray'][$_SESSION['qTraversal']]);
  }

  if (isset($_POST['readyNo'])) {

    header("Location: edit.php");
  }

  if (isset($_POST['chooseChar1'])) {
    $_SESSION['qTraversal']++;
    $_SESSION['resultChr1']++;
    header("Location: " . $_SESSION['shuffledarray'][$_SESSION['qTraversal']]);
  }
  if (isset($_POST['chooseChar2'])) {
    $_SESSION['qTraversal']++;
    $_SESSION['resultChr2']++;
    header("Location: " . $_SESSION['shuffledarray'][$_SESSION['qTraversal']]);
  }
  if (isset($_POST['chooseChar3'])) {
    $_SESSION['qTraversal']++;
    $_SESSION['resultChr3']++;
    header("Location: " . $_SESSION['shuffledarray'][$_SESSION['qTraversal']]);
  }
  if (isset($_POST['chooseChar4'])) {
    $_SESSION['qTraversal']++;
    $_SESSION['resultChr4']++;
    header("Location: " . $_SESSION['shuffledarray'][$_SESSION['qTraversal']]);
  }


  ?>
</body>

</html>