/*
 * 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", the "GNU Affero General Public License v3.0 only", 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", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.datastreams.lifecycle.action;

import org.elasticsearch.action.ActionType;
import org.elasticsearch.action.IndicesRequest;
import org.elasticsearch.action.support.IndicesOptions;
import org.elasticsearch.action.support.master.AcknowledgedRequest;
import org.elasticsearch.action.support.master.AcknowledgedResponse;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.core.TimeValue;

import java.io.IOException;
import java.util.Arrays;
import java.util.Objects;

/**
 * Removes the data stream lifecycle configuration from the requested data streams.
 */
public class DeleteDataStreamLifecycleAction {

    public static final ActionType<AcknowledgedResponse> INSTANCE = new ActionType<>("indices:admin/data_stream/lifecycle/delete");

    private DeleteDataStreamLifecycleAction() {/* no instances */}

    public static final class Request extends AcknowledgedRequest<Request> implements IndicesRequest.Replaceable {

        private String[] names;
        private IndicesOptions indicesOptions = IndicesOptions.builder()
            .concreteTargetOptions(IndicesOptions.ConcreteTargetOptions.ERROR_WHEN_UNAVAILABLE_TARGETS)
            .wildcardOptions(
                IndicesOptions.WildcardOptions.builder()
                    .matchOpen(true)
                    .matchClosed(true)
                    .includeHidden(false)
                    .resolveAliases(false)
                    .allowEmptyExpressions(true)
                    .build()
            )
            .gatekeeperOptions(
                IndicesOptions.GatekeeperOptions.builder()
                    .allowAliasToMultipleIndices(false)
                    .allowClosedIndices(true)
                    .ignoreThrottled(false)
                    .allowSelectors(false)
                    .build()
            )
            .build();

        public Request(StreamInput in) throws IOException {
            super(in);
            this.names = in.readOptionalStringArray();
            this.indicesOptions = IndicesOptions.readIndicesOptions(in);
        }

        @Override
        public void writeTo(StreamOutput out) throws IOException {
            super.writeTo(out);
            out.writeOptionalStringArray(names);
            indicesOptions.writeIndicesOptions(out);
        }

        public Request(TimeValue masterNodeTimeout, TimeValue ackTimeout, String[] names) {
            super(masterNodeTimeout, ackTimeout);
            this.names = names;
        }

        public String[] getNames() {
            return names;
        }

        @Override
        public String[] indices() {
            return names;
        }

        @Override
        public IndicesOptions indicesOptions() {
            return indicesOptions;
        }

        public Request indicesOptions(IndicesOptions indicesOptions) {
            this.indicesOptions = indicesOptions;
            return this;
        }

        @Override
        public boolean includeDataStreams() {
            return true;
        }

        @Override
        public boolean equals(Object o) {
            if (this == o) return true;
            if (o == null || getClass() != o.getClass()) return false;
            Request request = (Request) o;
            return Arrays.equals(names, request.names) && Objects.equals(indicesOptions, request.indicesOptions);
        }

        @Override
        public int hashCode() {
            int result = Objects.hash(indicesOptions);
            result = 31 * result + Arrays.hashCode(names);
            return result;
        }

        @Override
        public IndicesRequest indices(String... indices) {
            this.names = indices;
            return this;
        }
    }
}