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

import java.util.List;

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

import net.sourceforge.fenixedu.domain.Degree;
import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.Person;
import net.sourceforge.fenixedu.domain.accessControl.DelegatesGroup;
import net.sourceforge.fenixedu.domain.organizationalStructure.FunctionType;
import net.sourceforge.fenixedu.domain.organizationalStructure.PersonFunction;
import net.sourceforge.fenixedu.domain.student.Student;
import net.sourceforge.fenixedu.injectionCode.IGroup;
import net.sourceforge.fenixedu.presentationTier.Action.cms.messaging.mailSender.MailBean;
import net.sourceforge.fenixedu.presentationTier.Action.cms.messaging.mailSender.SimpleMailSenderAction;

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

public class SendEmailToDelegates extends SimpleMailSenderAction {
	
	public Student getDelegate(HttpServletRequest request) {
    	final Person person = getLoggedPerson(request);
    	return person.getStudent();
    }
	
	@Override
    protected List<IGroup> getPossibleReceivers(HttpServletRequest request) {
		List<IGroup> groups = super.getPossibleReceivers(request);
		
		final Person person = getLoggedPerson(request);
		
		PersonFunction delegateFunction = null;
		if(person.hasStudent()) {
			final Student delegate = person.getStudent(); 
			final Degree degree = delegate.getLastActiveRegistration().getDegree();
			delegateFunction = degree.getMostSignificantDelegateFunctionForStudent(delegate);
			
			/* All other delegates from delegate degree */
			groups.add(new DelegatesGroup(degree));
			
			/* All delegates with same delegate function from other degrees */
			if(delegateFunction != null && !delegateFunction.getFunction().getFunctionType().equals(FunctionType.DELEGATE_OF_YEAR)) {
				for(PersonFunction function : delegate.getAllActiveDelegateFunctions()) {
					groups.add(new DelegatesGroup(function.getFunction().getFunctionType()));
				}
			}
			
			/* A student can have a GGAE delegate role too  */
			if(person.getActiveGGAEDelegatePersonFunction() != null) {
				groups.add(new DelegatesGroup(person.getActiveGGAEDelegatePersonFunction().getFunction().getFunctionType()));
			}
		}
		else {
			delegateFunction = person.getActiveGGAEDelegatePersonFunction();	
			groups.add(new DelegatesGroup(delegateFunction.getFunction().getFunctionType()));
		}

        return groups;
    }  
	
	@Override
	protected MailBean createMailBean(HttpServletRequest request) {
		MailBean bean = new MailBean();
        
        Person person = getLoggedPerson(request);
        bean.setFromName(person.getName());
        bean.setFromAddress(person.getEmail());
     
        bean.setReceiversOptions(getPossibleReceivers(request));

        return bean;
	}
	
	@Override
	public ActionForward prepare(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response) throws Exception {
		request.setAttribute("currentExecutionYear", ExecutionYear.readCurrentExecutionYear());
		
		MailBean bean = createMailBean(request);
        request.setAttribute("mailBean", bean);
		
		return mapping.findForward("compose-mail");
	}
	
	
	@Override
	public ActionForward send(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response) throws Exception {
		request.setAttribute("currentExecutionYear", ExecutionYear.readCurrentExecutionYear());
		
		return super.send(mapping, actionForm, request, response);
	}
	
	@Override
	public ActionForward sendInvalid(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response) throws Exception {
		MailBean bean = createMailBean(request);
        request.setAttribute("mailBean", bean);
        return mapping.findForward("compose-mail");
	}
}