package net.sourceforge.fenixedu.domain.phd;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.ResourceBundle;

import net.sourceforge.fenixedu.domain.phd.candidacy.PhdProgramCandidacyProcess;
import pt.utl.ist.fenix.tools.util.i18n.Language;

public enum PhdProgramCandidacyProcessState implements PhdProcessStateType {

    PRE_CANDIDATE,

    STAND_BY_WITH_MISSING_INFORMATION,

    STAND_BY_WITH_COMPLETE_INFORMATION,

    PENDING_FOR_COORDINATOR_OPINION,

    REJECTED,

    WAITING_FOR_SCIENTIFIC_COUNCIL_RATIFICATION,

    RATIFIED_BY_SCIENTIFIC_COUNCIL,

    CONCLUDED;

    @Override
    public String getName() {
	return name();
    }

    @Override
    public String getLocalizedName() {
	return getLocalizedName(Language.getLocale());
    }

    @Override
    public String getLocalizedName(final Locale locale) {
	return ResourceBundle.getBundle("resources.PhdResources", locale).getString(getQualifiedName());
    }

    private String getQualifiedName() {
	return getClass().getSimpleName() + "." + name();
    }

    public static List<PhdProgramCandidacyProcessState> getPossibleNextStates(final PhdProgramCandidacyProcess process) {
	PhdProgramCandidacyProcessState type = process.getActiveState();
	return getPossibleNextStates(type);
    }

    public static List<PhdProgramCandidacyProcessState> getPossibleNextStates(final PhdProgramCandidacyProcessState type) {
	if (type == null) {
	    return Arrays.asList(PRE_CANDIDATE, STAND_BY_WITH_MISSING_INFORMATION, STAND_BY_WITH_COMPLETE_INFORMATION);
	}

	switch (type) {
	case PRE_CANDIDATE:
	    return Arrays.asList(STAND_BY_WITH_COMPLETE_INFORMATION, PENDING_FOR_COORDINATOR_OPINION, REJECTED);
	case STAND_BY_WITH_MISSING_INFORMATION:
	    return Arrays.asList(PENDING_FOR_COORDINATOR_OPINION, REJECTED);
	case STAND_BY_WITH_COMPLETE_INFORMATION:
	    return Arrays.asList(PENDING_FOR_COORDINATOR_OPINION, REJECTED);
	case PENDING_FOR_COORDINATOR_OPINION:
	    return Arrays.asList(WAITING_FOR_SCIENTIFIC_COUNCIL_RATIFICATION, REJECTED);
	case WAITING_FOR_SCIENTIFIC_COUNCIL_RATIFICATION:
	    return Arrays.asList(PENDING_FOR_COORDINATOR_OPINION, REJECTED, RATIFIED_BY_SCIENTIFIC_COUNCIL);
	case RATIFIED_BY_SCIENTIFIC_COUNCIL:
	    return Arrays.asList(CONCLUDED, REJECTED);
	case CONCLUDED:
	    return Arrays.asList(RATIFIED_BY_SCIENTIFIC_COUNCIL, REJECTED);
	case REJECTED:
	    return Arrays.asList(PENDING_FOR_COORDINATOR_OPINION);
	}

	return Collections.EMPTY_LIST;
    }

}