(****
 *
 * Module ManageQuestion has all the operations and objects that have to do with 
 * the question such as AddQuestion, EditQuestion, and DeleteQuestion.
 *
 *)
--module ManageQuestion;

--  from Bank import QuestionBank;
--  export Question, QuestionText, Type, Answer, Difficulty, Time, ClassName;

  operation AddQuestion is
    inputs: Question and QuestionBank; 
    outputs: QuestionBank;
    description: (*
        Object AddQuestion is the window where you enter all the information
        about the new question for the question bank.
    *);
  end AddQuestion;
 
  object Question is
    components: QuestionText and Type and Answer and Difficulty and Time and ClassName;
    operations: SeeText, SeeHTML;
    description: (*
        Object Question is the text of the actual question. You can switch between
        raw text and HTML.
    *);
  end Question;
  object QuestionText is string;
  

  object Type is
    components: MultipleChoice or MultipleAnswer or TrueFalse or Matching or Code or Essay;
    description: (*
        Object Type hold the type of the question. It can be any of the above types
        of questions.
    *);
  end Type;

  obj MultipleChoice;
  obj MultipleAnswer;
  obj TrueFalse;
  obj Matching;
  obj Code;
  obj Essay;

  object Difficulty is number;

  object Time is number
    description:(*  Object Time is the time it takes to complete the question. Time is specified
        in minutes. The time can be incremented and decremented by buttons on the side.
    *);
  end Time;

  object ClassList is
    components: ClassName*;
    description: (*
        Object Class is a pull down menu with all the classes that are in the question
        bank already. There is an option of "Others". You can add another class by
        clicking on "Others" (OtherClass).
    *);
  end ClassList;

  object ClassName is string;

  object Answer is
    components: MatchingAnswer or MultipleChoiceAnswer or MultipleAnswerAnswer or EssayAnswer or CodeAnswer
                or TrueFalseAnswer;
    description: (*
        Object Answer holds the answer of the actual question. It could have text, 
        matching fields, multiple choice fields, or partial credit percentages.
    *);
  end Answer;

  object MatchingAnswer is MatchingPair*;

  object MatchingPair is LeftColumn and RightColumn;

  obj LeftColumn is string;
  obj RightColumn is string;

  object MultipleChoiceAnswer is MultipleChoiceOptions*;

  object MultipleChoiceOptions is MultipleChoiceText and IsCorrect;

  obj IsCorrect is boolean;
  obj MultipleChoiceText is string;

  obj EssayAnswer is string;
  obj CodeAnswer is string;

  obj MultipleAnswerAnswer is ...;

  obj TrueFalseAnswer is True or False;

  obj True;
  obj False;

  operation EditQuestion is
    inputs: Question and Question and QuestionBank;
    outputs: QuestionBank;
    description: (*
        Object EditQuestion is the window where you edit all the information
        about the question from the question bank.
    *);
  end EditQuestion;

  operation DeleteQuestion is
    inputs: Question and QuestionBank;
    outputs: QuestionBank;
    description:;
  end DeleteQuestion;

--end ManageQuestion;