package net.sourceforge.fenixedu.predicates;

import net.sourceforge.fenixedu.domain.AcademicProgram;
import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.Person;
import net.sourceforge.fenixedu.domain.StudentCurricularPlan;
import net.sourceforge.fenixedu.domain.accessControl.academicAdministration.AcademicAuthorizationGroup;
import net.sourceforge.fenixedu.domain.accessControl.academicAdministration.AcademicOperationType;
import net.sourceforge.fenixedu.domain.organizationalStructure.Party;
import net.sourceforge.fenixedu.domain.person.RoleType;
import net.sourceforge.fenixedu.injectionCode.AccessControl;
import net.sourceforge.fenixedu.injectionCode.AccessControlPredicate;

public class StudentCurricularPlanPredicates {

    static public final AccessControlPredicate<StudentCurricularPlan> ENROL =
            new AccessControlPredicate<StudentCurricularPlan>() {

                @Override
                public boolean evaluate(StudentCurricularPlan studentCurricularPlan) {
                    final Person person = AccessControl.getPerson();
                    return person.hasRole(RoleType.STUDENT)
                            || hasAuthorization(person, AcademicOperationType.STUDENT_ENROLMENTS,
                                    studentCurricularPlan.getDegree())
                            || person.hasRole(RoleType.MANAGER)
                            || person.hasRole(RoleType.INTERNATIONAL_RELATION_OFFICE)
                            /*
                             * used in PhdIndividualProgramProcess enrolments management
                             */
                            || person.isCoordinatorFor(studentCurricularPlan.getDegreeCurricularPlan(),
                                    ExecutionYear.readCurrentExecutionYear());
                }
            };

    static public final AccessControlPredicate<StudentCurricularPlan> ENROL_IN_AFFINITY_CYCLE =
            new AccessControlPredicate<StudentCurricularPlan>() {
                @Override
                public boolean evaluate(StudentCurricularPlan studentCurricularPlan) {
                    final Person person = AccessControl.getPerson();

                    if (person.hasRole(RoleType.MANAGER)) {
                        return true;
                    }

                    if (!studentCurricularPlan.isConclusionProcessed()) {
                        return person.hasRole(RoleType.STUDENT)
                                || hasAuthorization(person, AcademicOperationType.STUDENT_ENROLMENTS,
                                        studentCurricularPlan.getDegree())
                                || person.hasRole(RoleType.INTERNATIONAL_RELATION_OFFICE);
                    }

                    if (studentCurricularPlan.isEmptyDegree()) {
                        return true;
                    }

                    return hasAuthorization(person, AcademicOperationType.UPDATE_REGISTRATION_AFTER_CONCLUSION,
                            studentCurricularPlan.getDegree());
                }
            };

    static public AccessControlPredicate<StudentCurricularPlan> ENROL_WITHOUT_RULES =
            new AccessControlPredicate<StudentCurricularPlan>() {

                @Override
                public boolean evaluate(final StudentCurricularPlan studentCurricularPlan) {
                    final Person person = AccessControl.getPerson();

                    if (person.hasRole(RoleType.MANAGER)) {
                        return true;
                    }

                    return hasAuthorization(person, AcademicOperationType.ENROLMENT_WITHOUT_RULES,
                            studentCurricularPlan.getDegree());
                }
            };

    static public final AccessControlPredicate<StudentCurricularPlan> MOVE_CURRICULUM_LINES =
            new AccessControlPredicate<StudentCurricularPlan>() {

                @Override
                public boolean evaluate(StudentCurricularPlan studentCurricularPlan) {
                    final Person person = AccessControl.getPerson();
                    return hasAuthorization(person, AcademicOperationType.STUDENT_ENROLMENTS, studentCurricularPlan.getDegree())
                            || person.hasRole(RoleType.MANAGER);
                }
            };

    static public AccessControlPredicate<StudentCurricularPlan> MOVE_CURRICULUM_LINES_WITHOUT_RULES =
            new AccessControlPredicate<StudentCurricularPlan>() {

                @Override
                public boolean evaluate(StudentCurricularPlan studentCurricularPlan) {
                    final Person person = AccessControl.getPerson();

                    if (person.hasRole(RoleType.MANAGER)) {
                        return true;
                    }

                    return hasAuthorization(person, AcademicOperationType.MOVE_CURRICULUM_LINES_WITHOUT_RULES,
                            studentCurricularPlan.getDegree());
                }

            };

    static private boolean hasAuthorization(Party party, AcademicOperationType operation, AcademicProgram program) {
        return AcademicAuthorizationGroup.getProgramsForOperation(party, operation).contains(program);
    }

}