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/*******************************************************************************
 *   © 2019-2024 SAP SE or an SAP affiliate company. All rights reserved.
 ******************************************************************************/
package com.sap.cloud.mt.subscription;

import com.sap.cloud.mt.subscription.exceptions.InternalError;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.HashMap;
import java.util.Map;

public class HanaEncryptionTool {
	private static final Logger logger = LoggerFactory.getLogger(HanaEncryptionTool.class);

	private HanaEncryptionTool() {
	}

	public static void addEncryptionParameter(ServiceCreateOptions serviceCreateOptions, DbEncryptionMode encryptionMode,
											  SubscriptionPayloadAccess payloadAccess) throws InternalError {
		if (encryptionMode == null) {
			logger.debug("No Hana encryption mode specified");
			return;
		}
		logger.debug("Hana encryption mode {} specified", encryptionMode.getValue());
		if (serviceCreateOptions == null) {
			throw new InternalError("Instance create options is initial");
		}
		var parameters = new HashMap();
		if (serviceCreateOptions.getProvisioningParameters() != null) {
			parameters.putAll(serviceCreateOptions.getProvisioningParameters());
		}
		Map dataEncryption = new HashMap<>();
		dataEncryption.put("mode", encryptionMode.getValue());
		parameters.put("dataEncryption", dataEncryption);
		Map subscriptionContext = new HashMap<>();
		subscriptionContext.put("globalAccountID", payloadAccess.getGlobalAccountId());
		subscriptionContext.put("subAccountID", payloadAccess.getSubAccountId());
		subscriptionContext.put("applicationName", payloadAccess.getApplicationName());
		parameters.put("subscriptionContext", subscriptionContext);
		parameters.put("enableTenant", "true");
		serviceCreateOptions.withProvisioningParameters(parameters);
	}

	public enum DbEncryptionMode {
		DEDICATED_KEY("DEDICATED_KEY"), MANAGED_KEY("MANAGED_KEY"), AUTO_DETECT("AUTO_DETECT");
		private final String value;

		DbEncryptionMode(String value) {
			this.value = value;
		}

		public String getValue() {
			return value;
		}
	}
}