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/*
 * Copyright (C) 2020 Graylog, Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the Server Side Public License, version 1,
 * as published by MongoDB, Inc.
 *
 * 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
 * Server Side Public License for more details.
 *
 * You should have received a copy of the Server Side Public License
 * along with this program. If not, see
 * .
 */
package org.graylog2.plugin.configuration.fields;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.stream.Collectors;

public class ListField extends AbstractConfigurationField {
    public static final String FIELD_TYPE = "list";

    public enum Attribute {
        ALLOW_CREATE,
    }

    private List defaultValue;
    private Map values;
    private List attributes;

    public ListField(String name, String humanName, List defaultValue, String description, Optional isOptional) {
        this(name, humanName, defaultValue, Collections.emptyMap(), description, isOptional);
    }

    public ListField(String name, String humanName, List defaultValue, Map values, String description, Optional isOptional, Attribute... attributes) {
        super(FIELD_TYPE, name, humanName, description, isOptional);
        this.defaultValue = defaultValue;
        this.values = values;
        this.attributes = Arrays.stream(attributes)
                .map(attribute -> attribute.toString().toLowerCase(Locale.ENGLISH))
                .collect(Collectors.toList());
    }

    public ListField(String name, String humanName, List defaultValue, Map values, String description, Optional isOptional, int position, Attribute... attributes) {
        this(name, humanName, defaultValue, values, description, isOptional, attributes);
        this.position = position;
    }

    @Override
    public Object getDefaultValue() {
        return defaultValue;
    }

    @Override
    public void setDefaultValue(Object defaultValue) {
        if (defaultValue instanceof List) {
            final List defaultValueList = (List) defaultValue;
            this.defaultValue = defaultValueList.stream()
                    .filter(o -> o instanceof String)
                    .map(String::valueOf)
                    .collect(Collectors.toList());
        }
    }

    @Override
    public Map> getAdditionalInformation() {
        return Collections.singletonMap("values", values);
    }

    @Override
    public List getAttributes() {
        return attributes;
    }
}