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package com.yahoo.vespa.config.server.session;

import com.yahoo.component.Version;
import com.yahoo.config.FileReference;
import com.yahoo.config.model.api.Quota;
import com.yahoo.config.model.api.TenantSecretStore;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.AthenzDomain;
import com.yahoo.config.provision.CloudAccount;
import com.yahoo.config.provision.DataplaneToken;
import com.yahoo.config.provision.DockerImage;
import com.yahoo.slime.Cursor;
import com.yahoo.slime.Slime;
import com.yahoo.slime.SlimeUtils;
import com.yahoo.vespa.config.server.tenant.DataplaneTokenSerializer;
import com.yahoo.vespa.config.server.tenant.OperatorCertificateSerializer;
import com.yahoo.vespa.config.server.tenant.TenantSecretStoreSerializer;

import java.io.IOException;
import java.security.cert.X509Certificate;
import java.util.List;
import java.util.Optional;

/**
 * Data class for session information, typically parameters supplied in a deployment request that needs
 * to be persisted in ZooKeeper. These will be used when creating a new session based on an existing one.
 *
 * @author hmusum
 */
public record SessionData(ApplicationId applicationId,
                          FileReference applicationPackageReference,
                          Version version,
                          Optional<DockerImage> dockerImageRepository,
                          Optional<AthenzDomain> athenzDomain,
                          Optional<Quota> quota,
                          List<TenantSecretStore> tenantSecretStores,
                          List<X509Certificate> operatorCertificates,
                          Optional<CloudAccount> cloudAccount,
                          List<DataplaneToken> dataplaneTokens) {

    // NOTE: Any state added here MUST also be propagated in com.yahoo.vespa.config.server.deploy.Deployment.prepare()
    static final String APPLICATION_ID_PATH = "applicationId";
    static final String APPLICATION_PACKAGE_REFERENCE_PATH = "applicationPackageReference";
    static final String VERSION_PATH = "version";
    static final String CREATE_TIME_PATH = "createTime";
    static final String DOCKER_IMAGE_REPOSITORY_PATH = "dockerImageRepository";
    static final String ATHENZ_DOMAIN = "athenzDomain";
    static final String QUOTA_PATH = "quota";
    static final String TENANT_SECRET_STORES_PATH = "tenantSecretStores";
    static final String OPERATOR_CERTIFICATES_PATH = "operatorCertificates";
    static final String CLOUD_ACCOUNT_PATH = "cloudAccount";
    static final String DATAPLANE_TOKENS_PATH = "dataplaneTokens";
    static final String SESSION_DATA_PATH = "sessionData";

    public byte[] toJson() {
        try {
            Slime slime = new Slime();
            toSlime(slime.setObject());
            return SlimeUtils.toJsonBytes(slime);
        }
        catch (IOException e) {
            throw new RuntimeException("Serialization of session data to json failed", e);
        }
    }

    private void toSlime(Cursor object) {
        object.setString(APPLICATION_ID_PATH, applicationId.serializedForm());
        object.setString(APPLICATION_PACKAGE_REFERENCE_PATH, applicationPackageReference.value());
        object.setString(VERSION_PATH, version.toString());
        object.setLong(CREATE_TIME_PATH, System.currentTimeMillis());
        dockerImageRepository.ifPresent(image -> object.setString(DOCKER_IMAGE_REPOSITORY_PATH, image.asString()));
        athenzDomain.ifPresent(domain -> object.setString(ATHENZ_DOMAIN, domain.value()));
        quota.ifPresent(q -> object.setString(QUOTA_PATH, q.toString()));

        Cursor tenantSecretStoresArray = object.setArray(TENANT_SECRET_STORES_PATH);
        TenantSecretStoreSerializer.toSlime(tenantSecretStores, tenantSecretStoresArray);

        Cursor operatorCertificatesArray = object.setArray(OPERATOR_CERTIFICATES_PATH);
        OperatorCertificateSerializer.toSlime(operatorCertificates, operatorCertificatesArray);

        cloudAccount.ifPresent(account -> object.setString(CLOUD_ACCOUNT_PATH, account.value()));

        Cursor dataplaneTokensArray = object.setArray(DATAPLANE_TOKENS_PATH);
        DataplaneTokenSerializer.toSlime(dataplaneTokens, dataplaneTokensArray);
    }

}