package net.sourceforge.fenixedu.predicates;

import net.sourceforge.fenixedu.applicationTier.IUserView;
import net.sourceforge.fenixedu.domain.person.RoleType;
import net.sourceforge.fenixedu.domain.research.result.ResearchResult;
import net.sourceforge.fenixedu.domain.research.result.ResearchResultDocumentFile;
import net.sourceforge.fenixedu.domain.research.result.ResultParticipation;
import net.sourceforge.fenixedu.domain.research.result.ResultUnitAssociation;
import net.sourceforge.fenixedu.injectionCode.AccessControl;
import net.sourceforge.fenixedu.injectionCode.AccessControlPredicate;

public class ResultPredicates {

    /**
     * Predicates to access Result objects.
     */
    public static final AccessControlPredicate<ResearchResult> createPredicate = new AccessControlPredicate<ResearchResult>() {
	public boolean evaluate(ResearchResult result) {
	    final IUserView userView = AccessControl.getUserView();
	    if (userView != null
		    && (userView.hasRoleType(RoleType.SCIENTIFIC_COUNCIL) || (userView.hasRoleType(RoleType.RESEARCHER) && !result
			    .hasAnyResultParticipations()))) {
		return true;
	    }
	    return false;
	}
    };

    public static final AccessControlPredicate<ResearchResult> writePredicate = new AccessControlPredicate<ResearchResult>() {
	public boolean evaluate(ResearchResult result) {
	    return result.isEditableByCurrentUser();
	}
    };

    /**
     * Predicates to access ResultUnitAssociation objects.
     */
    public static final AccessControlPredicate<ResultUnitAssociation> unitWritePredicate = new AccessControlPredicate<ResultUnitAssociation>() {
	public boolean evaluate(ResultUnitAssociation association) {
	    return writePredicate.evaluate(association.getResult());
	}
    };

    /**
     * Predicates to access ResultParticipation objects.
     */
    public static final AccessControlPredicate<ResultParticipation> participationWritePredicate = new AccessControlPredicate<ResultParticipation>() {
	public boolean evaluate(ResultParticipation participation) {
	    return writePredicate.evaluate(participation.getResult());
	}
    };

    /**
     * Predicates to access ResultDocumentFile objects.
     */
    public static final AccessControlPredicate<ResearchResultDocumentFile> documentFileWritePredicate = new AccessControlPredicate<ResearchResultDocumentFile>() {
	public boolean evaluate(ResearchResultDocumentFile documentFile) {
	    return writePredicate.evaluate(documentFile.getResult());
	}
    };
}