package net.sourceforge.fenixedu.presentationTier.renderers;

import net.sourceforge.fenixedu.domain.student.Student;
import net.sourceforge.fenixedu.renderers.NumberInputRenderer;
import net.sourceforge.fenixedu.renderers.components.HtmlComponent;
import net.sourceforge.fenixedu.renderers.components.converters.ConversionException;
import net.sourceforge.fenixedu.renderers.components.converters.Converter;
import net.sourceforge.fenixedu.renderers.converters.IntegerNumberConverter;

public class StudentByNumberInputRenderer extends NumberInputRenderer {

    @Override
    public HtmlComponent render(Object targetObject, Class type) {
        if (targetObject == null) {
            return super.render(null, type);
        }
        else {
            Student student = (Student) targetObject;
            return super.render(student.getNumber(), type);
        }
    }

    @Override
    protected Converter getConverter() {
        return new StudentNumberConverter();
    }

    public static class StudentNumberConverter extends Converter {

        /**
         * Default Serial id. 
         */
        private static final long serialVersionUID = 1L;

        @Override
        public Object convert(Class type, Object value) {
            try {
                IntegerNumberConverter converter = new IntegerNumberConverter();
                Integer studentNumber = (Integer) converter.convert(type, value);
                
                return Student.readStudentByNumber(studentNumber);
            } catch (ConversionException e) {
                return null;
            }
        }
        
    }
}