/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.internal.kernel.api.security;

public class RelTypeSegment implements Segment {
    private final String relType;

    public RelTypeSegment(String relType) {
        this.relType = relType;
    }

    public String getRelType() {
        return relType;
    }

    @Override
    public int hashCode() {
        return relType != null ? relType.hashCode() : 0;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj instanceof RelTypeSegment other) {
            if (this.relType == null) {
                return other.relType == null;
            } else {
                return this.relType.equals(other.getRelType());
            }
        }
        return false;
    }

    @Override
    public String toString() {
        return String.format("RELATIONSHIP %s", relType == null ? "*" : relType);
    }

    @Override
    public boolean satisfies(Segment segment) {
        if (segment instanceof RelTypeSegment other) {
            return relType == null || relType.equals(other.relType);
        }
        return false;
    }

    public static final RelTypeSegment ALL = new RelTypeSegment(null);
}
