package quizz.factory;

import java.io.*;

public class QuestionnaireFactory {

    public static final QuestionnaireFactory FACTORY = new QuestionnaireFactory ( );

    private QuestionnaireFactory () {}

    public Question createQuestion(String text, String answer, String points) throws IOException, Exception {
        int nbPoints = Integer.parseInt(points);
        try {
            return new Question(text, AnswerFactory.getInstance().buildAnswer(answer, text), nbPoints);
        }catch(IOException io){
            throw new Exception("bad format");
        }
    }

    public Quizz createQuestionnaire (String fileName) throws IOException {
        Quizz questionnaire = new Quizz();
        File source = new File ( fileName );
        BufferedReader in = null ;
        try {
            in = new BufferedReader(new FileReader( source ) );
            String text ;
            while (( text = in . readLine())!= null ) {
                String answer = in . readLine ( );
                String nbPoints = in . readLine ( );
                if(answer == null || nbPoints == null ) {
                    throw new IOException("bad format");
                }
                questionnaire.addQuestion(this.createQuestion(text,answer,nbPoints));
            }
        } catch (FileNotFoundException e) {
            throw new IOException(e );
        }
        finally {
            in.close();
        }
        return questionnaire ;
    }
}