<?php
/*PLEASE DO NOT EDIT THIS CODE*/
/*This code was generated using the UMPLE 1.33.0.6934.a386b0a58 modeling language!*/

class Mentor
{

  //------------------------
  // MEMBER VARIABLES
  //------------------------

  //Mentor Attributes
  private $name;
  private $studentsPriority;

  //Mentor Associations
  private $students;

  //------------------------
  // CONSTRUCTOR
  //------------------------

  public function __construct($aName)
  {
    $this->name = $aName;
    $this->studentsPriority = 
      function($x, $y)
      {
        return $x->getId() -
               $y->getId();
      };
    $this->students = array();
  }

  //------------------------
  // INTERFACE
  //------------------------

  public function setName($aName)
  {
    $wasSet = false;
    $this->name = $aName;
    $wasSet = true;
    return $wasSet;
  }

  public function setStudentsPriority($aStudentsPriority)
  {
    $wasSet = false;
    $this->studentsPriority = $aStudentsPriority;
    $wasSet = true;
    return $wasSet;
  }

  public function getName()
  {
    return $this->name;
  }

  public function getStudentsPriority()
  {
    return $this->studentsPriority;
  }

  public function getStudent_index($index)
  {
    $aStudent = $this->students[$index];
    return $aStudent;
  }

  public function getStudents()
  {
    $newStudents = $this->students;
    return $newStudents;
  }

  public function numberOfStudents()
  {
    $number = count($this->students);
    return $number;
  }

  public function hasStudents()
  {
    $has = $this->numberOfStudents() > 0;
    return $has;
  }

  public function indexOfStudent($aStudent)
  {
    $wasFound = false;
    $index = 0;
    foreach($this->students as $student)
    {
      if ($student->equals($aStudent))
      {
        $wasFound = true;
        break;
      }
      $index += 1;
    }
    $index = $wasFound ? $index : -1;
    return $index;
  }

  public static function minimumNumberOfStudents()
  {
    return 0;
  }

  public function addStudent($aStudent)
  {
    $wasAdded = false;
    if ($this->indexOfStudent($aStudent) !== -1) { return false; }
    $this->students[] = $aStudent;
    if ($aStudent->indexOfMentor($this) != -1)
    {
      $wasAdded = true;
    }
    else
    {
      $wasAdded = $aStudent->addMentor($this);
      if (!$wasAdded)
      {
        array_pop($this->students);
      }
    }
      if(wasAdded)
          usort($this->students, $this->studentsPriority);
      
    return $wasAdded;
  }

  public function removeStudent($aStudent)
  {
    $wasRemoved = false;
    if ($this->indexOfStudent($aStudent) == -1)
    {
      return $wasRemoved;
    }

    $oldIndex = $this->indexOfStudent($aStudent);
    unset($this->students[$oldIndex]);
    if ($aStudent->indexOfMentor($this) == -1)
    {
      $wasRemoved = true;
    }
    else
    {
      $wasRemoved = $aStudent->removeMentor($this);
      if (!$wasRemoved)
      {
        $this->students[$oldIndex] = $aStudent;
        ksort($this->students);
      }
    }
    $this->students = array_values($this->students);
    return $wasRemoved;
  }

  public function equals($compareTo)
  {
    return $this == $compareTo;
  }

  public function delete()
  {
    $copyOfStudents = $this->students;
    $this->students = array();
    foreach ($copyOfStudents as $aStudent)
    {
      $aStudent->removeMentor($this);
    }
  }

}
?>
<?php
/*PLEASE DO NOT EDIT THIS CODE*/
/*This code was generated using the UMPLE 1.33.0.6934.a386b0a58 modeling language!*/

class Student
{

  //------------------------
  // MEMBER VARIABLES
  //------------------------

  //Student Attributes
  private $id;
  private $mentorsPriority;

  //Student Associations
  private $mentors;

  //------------------------
  // CONSTRUCTOR
  //------------------------

  public function __construct($aId)
  {
    $this->id = $aId;
    $this->mentorsPriority = 
      function($x, $y)
      {
        return $x->getName() -
               $y->getName();
      };
    $this->mentors = array();
  }

  //------------------------
  // INTERFACE
  //------------------------

  public function setId($aId)
  {
    $wasSet = false;
    $this->id = $aId;
    $wasSet = true;
    return $wasSet;
  }

  public function setMentorsPriority($aMentorsPriority)
  {
    $wasSet = false;
    $this->mentorsPriority = $aMentorsPriority;
    $wasSet = true;
    return $wasSet;
  }

  public function getId()
  {
    return $this->id;
  }

  public function getMentorsPriority()
  {
    return $this->mentorsPriority;
  }

  public function getMentor_index($index)
  {
    $aMentor = $this->mentors[$index];
    return $aMentor;
  }

  public function getMentors()
  {
    $newMentors = $this->mentors;
    return $newMentors;
  }

  public function numberOfMentors()
  {
    $number = count($this->mentors);
    return $number;
  }

  public function hasMentors()
  {
    $has = $this->numberOfMentors() > 0;
    return $has;
  }

  public function indexOfMentor($aMentor)
  {
    $wasFound = false;
    $index = 0;
    foreach($this->mentors as $mentor)
    {
      if ($mentor->equals($aMentor))
      {
        $wasFound = true;
        break;
      }
      $index += 1;
    }
    $index = $wasFound ? $index : -1;
    return $index;
  }

  public static function minimumNumberOfMentors()
  {
    return 0;
  }

  public function addMentor($aMentor)
  {
    $wasAdded = false;
    if ($this->indexOfMentor($aMentor) !== -1) { return false; }
    $this->mentors[] = $aMentor;
    if ($aMentor->indexOfStudent($this) != -1)
    {
      $wasAdded = true;
    }
    else
    {
      $wasAdded = $aMentor->addStudent($this);
      if (!$wasAdded)
      {
        array_pop($this->mentors);
      }
    }
      if(wasAdded)
          usort($this->mentors, $this->mentorsPriority);
      
    return $wasAdded;
  }

  public function removeMentor($aMentor)
  {
    $wasRemoved = false;
    if ($this->indexOfMentor($aMentor) == -1)
    {
      return $wasRemoved;
    }

    $oldIndex = $this->indexOfMentor($aMentor);
    unset($this->mentors[$oldIndex]);
    if ($aMentor->indexOfStudent($this) == -1)
    {
      $wasRemoved = true;
    }
    else
    {
      $wasRemoved = $aMentor->removeStudent($this);
      if (!$wasRemoved)
      {
        $this->mentors[$oldIndex] = $aMentor;
        ksort($this->mentors);
      }
    }
    $this->mentors = array_values($this->mentors);
    return $wasRemoved;
  }

  public function equals($compareTo)
  {
    return $this == $compareTo;
  }

  public function delete()
  {
    $copyOfMentors = $this->mentors;
    $this->mentors = array();
    foreach ($copyOfMentors as $aMentor)
    {
      $aMentor->removeStudent($this);
    }
  }

}
?>