/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate licenses
 * this file to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.  You may
 * obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.sql.tree;

import com.google.common.base.MoreObjects;
import com.google.common.base.Objects;

import java.util.List;
import java.util.Optional;

public class CreateAnalyzer extends Statement {

    private final String ident;
    private final Optional<String> extendedAnalyzer;
    private final List<AnalyzerElement> elements;

    public CreateAnalyzer(String ident, Optional<String> extendedAnalyzer, List<AnalyzerElement> elements) {
        this.ident = ident;
        this.extendedAnalyzer = extendedAnalyzer;
        this.elements = elements;
    }

    public String ident() {
        return ident;
    }

    public Optional<String> extendedAnalyzer() {
        return extendedAnalyzer;
    }

    public boolean isExtending() {
        return extendedAnalyzer.isPresent();
    }

    public List<AnalyzerElement> elements() {
        return elements;
    }

    @Override
    public int hashCode() {
        return Objects.hashCode(ident, extendedAnalyzer, elements);
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;

        CreateAnalyzer that = (CreateAnalyzer) o;

        if (!elements.equals(that.elements)) return false;
        if (!extendedAnalyzer.equals(that.extendedAnalyzer)) return false;
        if (!ident.equals(that.ident)) return false;

        return true;
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(this)
            .add("ident", ident)
            .add("extends", extendedAnalyzer)
            .add("elements", elements)
            .toString();
    }

    @Override
    public <R, C> R accept(AstVisitor<R, C> visitor, C context) {
        return visitor.visitCreateAnalyzer(this, context);
    }
}