/*
 * Created on 10/Set/2003, 18:36:21
 * changed on 4/Jan/2004, 19:45:11 (generalize for any execution course)
 * changed on 13/Out/2004 20:12:33 (changed servlet output, giving more information)
 *By Goncalo Luiz gedl [AT] rnl [DOT] ist [DOT] utl [DOT] pt
 */

package net.sourceforge.fenixedu.presentationTier.Action.publico;

import java.io.IOException;
import java.util.Calendar;
import java.util.Collection;
import java.util.Iterator;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sourceforge.fenixedu.domain.Attends;
import net.sourceforge.fenixedu.domain.CurricularCourse;
import net.sourceforge.fenixedu.domain.ExecutionCourse;
import net.sourceforge.fenixedu.domain.Grouping;
import net.sourceforge.fenixedu.domain.Lesson;
import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.domain.StudentGroup;
import net.sourceforge.fenixedu.presentationTier.Action.exceptions.FenixActionException;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

/**
 * @author Goncalo Luiz gedl [AT] rnl [DOT] ist [DOT] utl [DOT] pt
 * 
 * 
 *         Created at 10/Set/2003, 18:36:21
 * 
 */

public class ShowStudentGroupInfo extends Action {
    public String buildInfo(Integer executionCourseID, String username, String password, String requestURL) {
	String result = new String();
	if (username == null)
	    return new String();

	try {
	    ExecutionCourse executionCourse = RootDomainObject.getInstance().readExecutionCourseByOID(executionCourseID);
	    Collection<Grouping> groupings = executionCourse.getGroupings();

	    if (executionCourse == null || groupings == null)
		return "-1";

	    for (Iterator iterGroupings = groupings.iterator(); iterGroupings.hasNext();) {
		Grouping grouping = (Grouping) iterGroupings.next();

		if (grouping != null) {

		    for (StudentGroup studentGroup : grouping.getStudentGroups()) {
			for (Attends searchingAttendsSet : studentGroup.getAttends()) {
			    if (searchingAttendsSet.getRegistration().getPerson().hasUsername(username)) {
				result = executionCourse.getNome() + "(";
				Collection<CurricularCourse> curricularCourses = executionCourse.getAssociatedCurricularCourses();
				boolean firstCurricularCourse = true;
				for (CurricularCourse course : curricularCourses) {
				    if (!firstCurricularCourse)
					result += ",";
				    result += course.getDegreeCurricularPlan().getName();
				}
				result += ")\n";
				result += grouping.getName() + "\n";
				int remainingStudents = grouping.getMaximumCapacity().intValue();
				for (Attends attends : studentGroup.getAttends()) {
				    result += attends.getRegistration().getNumber();
				    result += "-";
				    result += attends.getRegistration().getActiveStudentCurricularPlan()
					    .getDegreeCurricularPlan().getName()
					    + "\n";
				    remainingStudents--;
				}
				while (remainingStudents > 0) {
				    remainingStudents--;
				    result += "N/A\n";
				}

				result += studentGroup.getGroupNumber() + "\n" + studentGroup.getShift().getNome() + "\n";
				for (Lesson lesson : studentGroup.getShift().getAssociatedLessons()) {
				    result += lesson.getDiaSemana().toString() + " "
					    + lesson.getInicio().get(Calendar.HOUR_OF_DAY);
				    int minute = lesson.getInicio().get(Calendar.MINUTE);
				    result += ":";
				    if (minute < 10)
					result += "0";
				    result += minute + "\n\n";
				}

			    }
			}
		    }
		}
	    }
	} catch (Exception e) {
	    e.printStackTrace();
	    result = "-1";
	}

	return result;
    }

    public ActionForward execute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response)
	    throws FenixActionException {

	String result = new String();

	if (!request.getScheme().equalsIgnoreCase("https")) {
	    result = "-1";
	} else {

	    String studentUsername = request.getParameter("username");
	    String studentPassword = request.getParameter("password");
	    String idsString = request.getParameter("ids");
	    final String requestURL = request.getRequestURL().toString();

	    Integer[] coursesIds = { Integer.valueOf(34811), Integer.valueOf(34661), Integer.valueOf(34950) };
	    if (idsString != null) {
		String[] ids = idsString.split(",");
		coursesIds = new Integer[ids.length];
		for (int i = 0; i < ids.length; i++)
		    coursesIds[i] = Integer.valueOf(ids[i]);

	    }

	    for (int i = 0; i < coursesIds.length; i++) {

		result += this.buildInfo(coursesIds[i], studentUsername, studentPassword, requestURL);
	    }
	    if (result.equals(""))
		result = "-1";
	}
	try {
	    ServletOutputStream writer = response.getOutputStream();
	    response.setContentType("text/plain");
	    writer.print(result);
	    writer.flush();
	    response.flushBuffer();
	} catch (IOException ex) {
	    throw new FenixActionException();
	}
	return null;
    }
}