/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * Copyright (C) 2018 Huawei Technologies Co., Ltd. All rights reserved. 
 * ================================================================================
 * Licensed 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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.mso.bpmn.infrastructure.scripts;

import static org.apache.commons.lang3.StringUtils.*;
import groovy.xml.XmlUtil
import groovy.json.*
import org.openecomp.mso.bpmn.common.scripts.AbstractServiceTaskProcessor
import org.openecomp.mso.bpmn.common.scripts.ExceptionUtil

import org.openecomp.mso.bpmn.core.WorkflowException
import org.openecomp.mso.bpmn.core.json.JsonUtils
import org.openecomp.mso.rest.APIResponse

import java.util.List;
import java.util.UUID;

import org.camunda.bpm.engine.delegate.BpmnError
import org.camunda.bpm.engine.runtime.Execution
import org.apache.commons.lang3.*
import org.apache.commons.codec.binary.Base64;
import org.springframework.web.util.UriUtils

/**
 * This groovy class supports the <class>UpdateCustomE2EServiceInstance.bpmn</class> process.
 * AlaCarte flow for 1702 ServiceInstance Update
 *
 */
public class UpdateCustomE2EServiceInstance extends AbstractServiceTaskProcessor {
	String Prefix="UPDSI_"
	ExceptionUtil exceptionUtil = new ExceptionUtil()
	JsonUtils jsonUtil = new JsonUtils()


	public void preProcessRequest (Execution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		execution.setVariable("prefix",Prefix)
		String msg = ""
		utils.log("INFO", " *** preProcessRequest() *** ", isDebugEnabled)

		try {

			String siRequest = execution.getVariable("bpmnRequest")
			utils.logAudit(siRequest)

			String requestId = execution.getVariable("mso-request-id")
			execution.setVariable("msoRequestId", requestId)
			utils.log("INFO", "Input Request:" + siRequest + " reqId:" + requestId, isDebugEnabled)

			String serviceInstanceId = execution.getVariable("serviceInstanceId")
			if (isBlank(serviceInstanceId)) {
				msg = "Input serviceInstanceId' is null"
				exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			}
						
			//subscriberInfo
			String globalSubscriberId = jsonUtil.getJsonValue(siRequest, "requestDetails.subscriberInfo.globalSubscriberId")
			if (isBlank(globalSubscriberId)) {
				msg = "Input globalSubscriberId' is null"
				exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			} else {
				execution.setVariable("globalSubscriberId", globalSubscriberId)
			}

			//requestInfo
			execution.setVariable("source", jsonUtil.getJsonValue(siRequest, "requestDetails.requestInfo.source"))
			execution.setVariable("serviceInstanceName", jsonUtil.getJsonValue(siRequest, "requestDetails.requestInfo.instanceName"))
			execution.setVariable("disableRollback", jsonUtil.getJsonValue(siRequest, "requestDetails.requestInfo.suppressRollback"))
			String productFamilyId = jsonUtil.getJsonValue(siRequest, "requestDetails.requestInfo.productFamilyId")
			if (isBlank(productFamilyId))
			{
				msg = "Input productFamilyId is null"
				utils.log("INFO", msg, isDebugEnabled)
				//exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			} else {
				execution.setVariable("productFamilyId", productFamilyId)
			}
	         String userParams = jsonUtil.getJsonValue(siRequest, "requestDetails.requestParameters.userParams")      
             utils.log("INFO", "userParams:" + userParams, isDebugEnabled)
	         List<String> paramList = jsonUtil.StringArrayToList(execution, userParams)
	         String uuiRequest = jsonUtil.getJsonValue(paramList.get(0), "UUIRequest")
			//modelInfo
			if (isBlank(uuiRequest)) {
				msg = "Input uuiRequest is null"
				utils.log("INFO", msg, isDebugEnabled)
				exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			} else
			{
				execution.setVariable("uuiRequest", uuiRequest)
			}

			utils.log("INFO", "uuiRequest:\n" + uuiRequest,  isDebugEnabled)

			//requestParameters
			String serviceType = jsonUtil.getJsonValue(uuiRequest, "service.parameters.serviceType")
			if (isBlank(serviceType)) {
				msg = "Input serviceType is null"
				utils.log("INFO", msg, isDebugEnabled)
				exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			} else {
				execution.setVariable("serviceType", serviceType)
			}
			
			//operationId
			String operationId = jsonUtil.getJsonValue(siRequest, "operationId")
		 	if (isBlank(operationId)) {
		 		operationId = UUID.randomUUID().toString()
		 	 }   
			execution.setVariable("operationId", operationId) 
			execution.setVariable("operationType", "UPDATE")
			
			execution.setVariable("URN_mso_adapters_openecomp_db_endpoint","http://mso.mso.testlab.openecomp.org:8080/dbadapters/RequestsDbAdapter")

		} catch (BpmnError e) {
			throw e;
		} catch (Exception ex){
			msg = "Exception in preProcessRequest " + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
			exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
		}
		utils.log("INFO"," ***** Exit preProcessRequest *****",  isDebugEnabled)
	}

	public void sendSyncResponse (Execution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO", " *** sendSyncResponse *** ", isDebugEnabled)

		try {
			String operationId = execution.getVariable("operationId")
			String serviceInstanceId = execution.getVariable("serviceInstanceId")
			// RESTResponse for API Handler (APIH) Reply Task
			String updateServiceRestRequest = """{"service":{"serviceId":"${serviceInstanceId}","operationId":"${operationId}"}}""".trim()
			utils.log("INFO", " sendSyncResponse to APIH:" + "\n" + updateServiceRestRequest, isDebugEnabled)
			sendWorkflowResponse(execution, 202, updateServiceRestRequest)
			execution.setVariable("sentSyncResponse", true)

		} catch (Exception ex) {
			String msg = "Exceptuion in sendSyncResponse:" + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
			exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
		}
		utils.log("INFO"," ***** Exit sendSyncResopnse *****",  isDebugEnabled)
	}


	public void sendSyncError (Execution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO", " *** sendSyncError *** ", isDebugEnabled)

		try {
			String errorMessage = ""
			if (execution.getVariable("WorkflowException") instanceof WorkflowException) {
				WorkflowException wfe = execution.getVariable("WorkflowException")
				errorMessage = wfe.getErrorMessage()
			} else {
				errorMessage = "Sending Sync Error."
			}

			String buildworkflowException =
					"""<aetgt:WorkflowException xmlns:aetgt="http://org.openecomp/mso/workflow/schema/v1">
					<aetgt:ErrorMessage>${errorMessage}</aetgt:ErrorMessage>
					<aetgt:ErrorCode>7000</aetgt:ErrorCode>
				   </aetgt:WorkflowException>"""

			utils.logAudit(buildworkflowException)
			sendWorkflowResponse(execution, 500, buildworkflowException)

		} catch (Exception ex) {
			utils.log("INFO", " Sending Sync Error Activity Failed. " + "\n" + ex.getMessage(), isDebugEnabled)
		}

	}

	public void prepareCompletionRequest (Execution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO", " *** prepareCompletion *** ", isDebugEnabled)

		try {
			String requestId = execution.getVariable("msoRequestId")
			String serviceInstanceId = execution.getVariable("serviceInstanceId")
			String source = execution.getVariable("source")
			
			String msoCompletionRequest =
					"""<aetgt:MsoCompletionRequest xmlns:aetgt="http://org.openecomp/mso/workflow/schema/v1"
								xmlns:ns="http://org.openecomp/mso/request/types/v1">
						<request-info xmlns="http://org.openecomp/mso/infra/vnf-request/v1">
							<request-id>${requestId}</request-id>
							<action>UPDATE</action>
							<source>${source}</source>
			   			</request-info>
						<status-message>Service Instance was updated successfully.</status-message>
						<serviceInstanceId>${serviceInstanceId}</serviceInstanceId>
			   			<mso-bpel-name>UpdateGenericALaCarteServiceInstance</mso-bpel-name>
					</aetgt:MsoCompletionRequest>"""

			// Format Response
			String xmlMsoCompletionRequest = utils.formatXml(msoCompletionRequest)

			execution.setVariable("completionRequest", xmlMsoCompletionRequest)
			utils.log("INFO", " Overall SUCCESS Response going to CompleteMsoProcess - " + "\n" + xmlMsoCompletionRequest, isDebugEnabled)

		} catch (Exception ex) {
			String msg = " Exception in prepareCompletion:" + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
			exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
		}
		utils.log("INFO", "*** Exit prepareCompletionRequest ***", isDebugEnabled)
	}

	public void prepareFalloutRequest(Execution execution){
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO", " *** prepareFalloutRequest *** ", isDebugEnabled)

		try {
			WorkflowException wfex = execution.getVariable("WorkflowException")
			utils.log("INFO", " Input Workflow Exception: " + wfex.toString(), isDebugEnabled)
			String requestId = execution.getVariable("msoRequestId")
			String source = execution.getVariable("source")
			String requestInfo =
					"""<request-info xmlns="http://org.openecomp/mso/infra/vnf-request/v1">
					<request-id>${requestId}</request-id>
					<action>UPDATE</action>
					<source>${source}</source>
				   </request-info>"""

			String falloutRequest = exceptionUtil.processMainflowsBPMNException(execution, requestInfo)
			execution.setVariable("falloutRequest", falloutRequest)
		} catch (Exception ex) {
			utils.log("INFO", "Exception prepareFalloutRequest:" + ex.getMessage(), isDebugEnabled)
			String errorException = "  Bpmn error encountered in UpdateGenericALaCarteServiceInstance flow. FalloutHandlerRequest,  buildErrorResponse() - " + ex.getMessage()
			String requestId = execution.getVariable("msoRequestId")
			String falloutRequest =
					"""<aetgt:FalloutHandlerRequest xmlns:aetgt="http://org.openecomp/mso/workflow/schema/v1"
					                             xmlns:ns="http://org.openecomp/mso/request/types/v1"
					                             xmlns:wfsch="http://org.openecomp/mso/workflow/schema/v1">
					   <request-info xmlns="http://org.openecomp/mso/infra/vnf-request/v1">
					      <request-id>${requestId}</request-id>
					      <action>UPDATE</action>
					      <source>UUI</source>
					   </request-info>
						<aetgt:WorkflowException xmlns:aetgt="http://org.openecomp/mso/workflow/schema/v1">
							<aetgt:ErrorMessage>${errorException}</aetgt:ErrorMessage>
							<aetgt:ErrorCode>7000</aetgt:ErrorCode>
						</aetgt:WorkflowException>
					</aetgt:FalloutHandlerRequest>"""

			execution.setVariable("falloutRequest", falloutRequest)
		}
		utils.log("INFO", "*** Exit prepareFalloutRequest ***", isDebugEnabled)
	}	
}