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/*
 * SPDX-License-Identifier: Apache-2.0
 *
 * The OpenSearch Contributors require contributions made to
 * this file be licensed under the Apache-2.0 license or a
 * compatible open source license.
 */

/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
 */
/*
 * Modifications Copyright OpenSearch Contributors. See
 * GitHub history for details.
 */

package org.opensearch.client.tasks;

import org.opensearch.client.Validatable;
import org.opensearch.common.unit.TimeValue;

import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.Optional;

public class CancelTasksRequest implements Validatable {

    private final List nodes = new ArrayList<>();
    private final List actions = new ArrayList<>();
    private Optional timeout = Optional.empty();
    private Optional parentTaskId = Optional.empty();
    private Optional taskId = Optional.empty();
    private Boolean waitForCompletion;

    CancelTasksRequest() {}

    void setNodes(List nodes) {
        this.nodes.addAll(nodes);
    }

    public List getNodes() {
        return nodes;
    }

    void setTimeout(TimeValue timeout) {
        this.timeout = Optional.of(timeout);
    }

    public Optional getTimeout() {
        return timeout;
    }

    void setActions(List actions) {
        this.actions.addAll(actions);
    }

    public List getActions() {
        return actions;
    }

    void setParentTaskId(TaskId parentTaskId) {
        this.parentTaskId = Optional.of(parentTaskId);
    }

    public Optional getParentTaskId() {
        return parentTaskId;
    }

    void setTaskId(TaskId taskId) {
        this.taskId = Optional.of(taskId);
    }

    public Optional getTaskId() {
        return taskId;
    }

    public Boolean getWaitForCompletion() {
        return waitForCompletion;
    }

    public void setWaitForCompletion(boolean waitForCompletion) {
        this.waitForCompletion = waitForCompletion;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (!(o instanceof CancelTasksRequest)) return false;
        CancelTasksRequest that = (CancelTasksRequest) o;
        return Objects.equals(getNodes(), that.getNodes())
            && Objects.equals(getActions(), that.getActions())
            && Objects.equals(getTimeout(), that.getTimeout())
            && Objects.equals(getParentTaskId(), that.getParentTaskId())
            && Objects.equals(getTaskId(), that.getTaskId())
            && Objects.equals(waitForCompletion, that.waitForCompletion);
    }

    @Override
    public int hashCode() {
        return Objects.hash(getNodes(), getActions(), getTimeout(), getParentTaskId(), getTaskId(), waitForCompletion);
    }

    @Override
    public String toString() {
        return "CancelTasksRequest{"
            + "nodes="
            + nodes
            + ", actions="
            + actions
            + ", timeout="
            + timeout
            + ", parentTaskId="
            + parentTaskId
            + ", taskId="
            + taskId
            + ", waitForCompletion="
            + waitForCompletion
            + '}';
    }

    public static class Builder {
        private Optional timeout = Optional.empty();
        private Optional taskId = Optional.empty();
        private Optional parentTaskId = Optional.empty();
        private List actionsFilter = new ArrayList<>();
        private List nodesFilter = new ArrayList<>();
        private Boolean waitForCompletion;

        public Builder withTimeout(TimeValue timeout) {
            this.timeout = Optional.of(timeout);
            return this;
        }

        public Builder withTaskId(TaskId taskId) {
            this.taskId = Optional.of(taskId);
            return this;
        }

        public Builder withParentTaskId(TaskId taskId) {
            this.parentTaskId = Optional.of(taskId);
            return this;
        }

        public Builder withActionsFiltered(List actions) {
            this.actionsFilter.clear();
            this.actionsFilter.addAll(actions);
            return this;
        }

        public Builder withNodesFiltered(List nodes) {
            this.nodesFilter.clear();
            this.nodesFilter.addAll(nodes);
            return this;
        }

        public Builder withWaitForCompletion(boolean waitForCompletion) {
            this.waitForCompletion = waitForCompletion;
            return this;
        }

        public CancelTasksRequest build() {
            CancelTasksRequest request = new CancelTasksRequest();
            timeout.ifPresent(request::setTimeout);
            taskId.ifPresent(request::setTaskId);
            parentTaskId.ifPresent(request::setParentTaskId);
            request.setNodes(nodesFilter);
            request.setActions(actionsFilter);
            if (waitForCompletion != null) {
                request.setWaitForCompletion(waitForCompletion);
            }
            return request;
        }
    }
}