/**
 * This file is part of Graylog.
 *
 * Graylog 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.
 *
 * Graylog 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 Graylog.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.graylog2.inputs;

import org.graylog2.database.NotFoundException;
import org.graylog2.plugin.database.PersistedService;
import org.graylog2.plugin.database.ValidationException;
import org.graylog2.plugin.inputs.Extractor;
import org.graylog2.plugin.inputs.MessageInput;
import org.graylog2.shared.inputs.NoSuchInputTypeException;

import java.util.List;
import java.util.Map;

public interface InputService extends PersistedService {
    List<Input> all();

    List<Input> allOfThisNode(String nodeId);

    Input create(String id, Map<String, Object> fields);

    Input create(Map<String, Object> fields);

    Input find(String id) throws NotFoundException;

    Input findForThisNode(String nodeId, String id) throws NotFoundException;

    Input findForThisNodeOrGlobal(String nodeId, String id) throws NotFoundException;

    /**
     * @return the total number of inputs in the cluster (including global inputs).
     */
    long totalCount();

    /**
     * @return the number of global inputs in the cluster.
     */
    long globalCount();

    /**
     * @return the number of node-specific inputs in the cluster.
     */
    long localCount();

    /**
     * @return the total number of inputs in the cluster grouped by type.
     */
    Map<String, Long> totalCountByType();

    /**
     * @param nodeId the node ID to query
     * @return the number of inputs on the specified node
     */
    long localCountForNode(String nodeId);

    /**
     * @param nodeId the node ID to query
     * @return the number of inputs on the specified node (including global inputs)
     */
    long totalCountForNode(String nodeId);

    /**
     * @return the total number of extractors in the cluster (including global inputs).
     */
    long totalExtractorCount();

    /**
     * @return the total number of extractors in the cluster (including global inputs) grouped by type.
     */
    Map<Extractor.Type, Long> totalExtractorCountByType();

    void addExtractor(Input input, Extractor extractor) throws ValidationException;

    void addStaticField(Input input, String key, String value) throws ValidationException;

    List<Extractor> getExtractors(Input input);

    Extractor getExtractor(Input input, String extractorId) throws NotFoundException;

    void removeExtractor(Input input, String extractorId);

    void removeStaticField(Input input, String key);

    MessageInput getMessageInput(Input io) throws NoSuchInputTypeException;

    List<Map.Entry<String, String>> getStaticFields(Input input);
}