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package edu.stanford.protege.webprotege.perspective;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.google.auto.value.AutoValue;
import edu.stanford.protege.webprotege.common.ProjectId;
import edu.stanford.protege.webprotege.common.UserId;
import edu.stanford.protege.webprotege.project.WithProjectId;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Optional;

/**
 * Matthew Horridge
 * Stanford Center for Biomedical Informatics Research
 * 2020-08-31
 */
@AutoValue

public abstract class PerspectiveCoordinates implements WithProjectId {

    public static final String PROJECT_ID = "projectId";

    public static final String USER_ID = "userId";

    public static final String PERSPECTIVE_ID = "perspectiveId";

    @Nonnull
    public static PerspectiveCoordinates get(@Nonnull ProjectId projectId, @Nonnull UserId userId, @Nonnull PerspectiveId perspectiveId) {
        return getInternal(projectId, userId, perspectiveId);
    }

    @Nonnull
    public static PerspectiveCoordinates get(@Nonnull ProjectId projectId, @Nonnull PerspectiveId perspectiveId) {
        return getInternal(projectId, null, perspectiveId);
    }

    @Nonnull
    public static PerspectiveCoordinates get(@Nonnull PerspectiveId perspectiveId) {
        return getInternal(null, null, perspectiveId);
    }

    @Nonnull
    protected static PerspectiveCoordinates getInternal(@JsonProperty(PROJECT_ID) @Nullable ProjectId projectId,
                                                 @JsonProperty(USER_ID) @Nullable UserId userId,
                                                 @JsonProperty(PERSPECTIVE_ID) @Nullable PerspectiveId perspectiveId) {
        return new AutoValue_PerspectiveCoordinates(projectId, userId, perspectiveId);
    }

    @Override
    public PerspectiveCoordinates withProjectId(@Nonnull ProjectId projectId) {
        if(getProjectId().isPresent() && getProjectId().get().equals(projectId)) {
            return this;
        }
        return getInternal(getProjectIdInternal(),
                           getUserIdInternal(),
                           getPerspectiveId());
    }

    @JsonProperty(PROJECT_ID)
    @Nullable
    protected abstract ProjectId getProjectIdInternal();


    @JsonIgnore
    @Nonnull
    public Optional getProjectId() {
        return Optional.ofNullable(getProjectIdInternal());
    }

    @JsonProperty(PROJECT_ID)
    @Nullable
    protected abstract UserId getUserIdInternal();

    @JsonIgnore
    @Nonnull
    public Optional getUserId() {
        return Optional.ofNullable(getUserIdInternal());
    }

    @JsonProperty(PERSPECTIVE_ID)
    @Nonnull
    public abstract PerspectiveId getPerspectiveId();


}