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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.graylog.plugins.views.search.views;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnore;
import com.fasterxml.jackson.annotation.JsonValue;
import com.google.auto.value.AutoValue;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;

@AutoValue
public abstract class Titles {
    private static final String KEY_WIDGETS = "widget";

    @JsonValue
    public abstract Map> titles();

    @JsonCreator
    public static Titles of(Map> titles) {
        return new AutoValue_Titles(titles);
    }

    public static Titles withWidgetTitle(Map widgetTitleMap) {
        final Map> titlesMap = new HashMap<>(1);
        titlesMap.put(KEY_WIDGETS, widgetTitleMap);
        return of(titlesMap);
    }

    public static Titles empty() {
        return of(Collections.emptyMap());
    }

    public Optional widgetTitle(String widgetId) {
        return Optional.ofNullable(titles().getOrDefault(KEY_WIDGETS, Collections.emptyMap()).get(widgetId));
    }
}