// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.model.application.validation.change;

import com.yahoo.config.application.api.ValidationId;
import com.yahoo.config.model.api.ConfigChangeReindexAction;
import com.yahoo.config.model.api.ServiceInfo;
import com.yahoo.config.provision.ClusterSpec;

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

/**
 * Represents an action to re-index a document type in order to handle a config change.
 *
 * @author bjorncs
 */
public class VespaReindexAction extends VespaConfigChangeAction implements ConfigChangeReindexAction {

    /**
     * The name of this action, which must be a valid ValidationId. This is a string here because
     * the validation ids belong to the Vespa model while these names are exposed to the config server,
     * which is model version independent.
     */
    private final ValidationId validationId;
    private final String documentType;

    private VespaReindexAction(ClusterSpec.Id id, ValidationId validationId, String message, List<ServiceInfo> services, String documentType) {
        super(id, message, services);
        this.validationId = validationId;
        this.documentType = documentType;
    }

    public static VespaReindexAction of(ClusterSpec.Id id, ValidationId validationId, String message) {
        return new VespaReindexAction(id, validationId, message, List.of(), /*documentType*/null);
    }

    public static VespaReindexAction of(
            ClusterSpec.Id id, ValidationId validationId, String message,
            List<ServiceInfo> services, String documentType) {
        return new VespaReindexAction(id, validationId, message, services, documentType);
    }

    @Override
    public VespaConfigChangeAction modifyAction(String newMessage, List<ServiceInfo> newServices, String documentType) {
        return new VespaReindexAction(clusterId(), validationId, newMessage, newServices, documentType);
    }

    @Override public Optional<ValidationId> validationId() { return Optional.ofNullable(validationId); }
    @Override public String getDocumentType() { return documentType; }
    @Override public boolean ignoreForInternalRedeploy() { return false; }
    @Override public String toString() { return super.toString() + ", documentType='" + documentType + "'"; }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        if (!super.equals(o)) return false;
        VespaReindexAction that = (VespaReindexAction) o;
        return Objects.equals(validationId, that.validationId) &&
               Objects.equals(documentType, that.documentType);
    }

    @Override public int hashCode() { return Objects.hash(super.hashCode(), validationId, documentType); }

}