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/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the Elastic License
 * 2.0 and the Server Side Public License, v 1; you may not use this file except
 * in compliance with, at your election, the Elastic License 2.0 or the Server
 * Side Public License, v 1.
 */
package org.elasticsearch.client.indices;

import org.elasticsearch.xcontent.XContentParser;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import java.util.Objects;

public class GetIndexTemplatesResponse {

    @Override
    public String toString() {
        List thisList = new ArrayList<>(this.indexTemplates);
        thisList.sort(Comparator.comparing(IndexTemplateMetadata::name));
        return "GetIndexTemplatesResponse [indexTemplates=" + thisList + "]";
    }

    private final List indexTemplates;

    GetIndexTemplatesResponse() {
        indexTemplates = new ArrayList<>();
    }

    GetIndexTemplatesResponse(List indexTemplates) {
        this.indexTemplates = indexTemplates;
    }

    public List getIndexTemplates() {
        return indexTemplates;
    }

    public static GetIndexTemplatesResponse fromXContent(XContentParser parser) throws IOException {
        final List templates = new ArrayList<>();
        for (XContentParser.Token token = parser.nextToken(); token != XContentParser.Token.END_OBJECT; token = parser.nextToken()) {
            if (token == XContentParser.Token.FIELD_NAME) {
                final IndexTemplateMetadata templateMetadata = IndexTemplateMetadata.Builder.fromXContent(parser, parser.currentName());
                templates.add(templateMetadata);
            }
        }
        return new GetIndexTemplatesResponse(templates);
    }

    @Override
    public int hashCode() {
        List sortedList = new ArrayList<>(this.indexTemplates);
        sortedList.sort(Comparator.comparing(IndexTemplateMetadata::name));
        return Objects.hash(sortedList);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (obj == null) return false;
        if (getClass() != obj.getClass()) return false;
        // To compare results we need to make sure the templates are listed in the same order
        GetIndexTemplatesResponse other = (GetIndexTemplatesResponse) obj;
        List thisList = new ArrayList<>(this.indexTemplates);
        List otherList = new ArrayList<>(other.indexTemplates);
        thisList.sort(Comparator.comparing(IndexTemplateMetadata::name));
        otherList.sort(Comparator.comparing(IndexTemplateMetadata::name));
        return Objects.equals(thisList, otherList);
    }

}