/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * Copyright (C) 2017 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 org.apache.http.HttpResponse
import groovy.xml.XmlUtil
import groovy.json.*

import org.openecomp.mso.bpmn.core.domain.ServiceDecomposition
import org.openecomp.mso.bpmn.core.domain.ServiceInstance
import org.openecomp.mso.bpmn.core.domain.ModelInfo
import org.openecomp.mso.bpmn.core.domain.Resource
import org.openecomp.mso.bpmn.core.domain.AllottedResource
import org.openecomp.mso.bpmn.core.domain.NetworkResource
import org.openecomp.mso.bpmn.core.domain.VnfResource
import org.openecomp.mso.bpmn.common.recipe.ResourceInput
import org.openecomp.mso.bpmn.common.resource.ResourceRequestBuilder;
import org.openecomp.mso.bpmn.common.recipe.BpmnRestClient
import org.openecomp.mso.bpmn.core.json.JsonUtils
import org.openecomp.mso.bpmn.common.scripts.AaiUtil
import org.openecomp.mso.bpmn.common.scripts.AbstractServiceTaskProcessor
import org.openecomp.mso.bpmn.common.scripts.ExceptionUtil
import org.openecomp.mso.bpmn.common.scripts.SDNCAdapterUtils
import org.openecomp.mso.bpmn.common.scripts.CatalogDbUtils;
import org.openecomp.mso.bpmn.core.RollbackData
import org.openecomp.mso.bpmn.core.WorkflowException
import org.openecomp.mso.rest.APIResponse;
import org.openecomp.mso.rest.RESTClient
import org.openecomp.mso.rest.RESTConfig
import org.openecomp.mso.bpmn.infrastructure.workflow.service.ServicePluginFactory

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

import org.camunda.bpm.engine.delegate.BpmnError
import org.camunda.bpm.engine.delegate.DelegateExecution
import org.json.JSONObject;
import org.json.JSONArray;
import org.apache.commons.lang3.*
import org.apache.commons.codec.binary.Base64;
import org.springframework.web.util.UriUtils;

/**
 * This groovy class supports the <class>DoCreateServiceInstance.bpmn</class> process.
 *
 * Inputs:
 * @param - msoRequestId
 * @param - globalSubscriberId
 * @param - subscriptionServiceType
 * @param - serviceInstanceId
 * @param - serviceInstanceName - O
 * @param - serviceModelInfo
 * @param - productFamilyId
 * @param - disableRollback
 * @param - failExists - TODO
 * @param - serviceInputParams (should contain aic_zone for serviceTypes TRANSPORT,ATM)
 * @param - sdncVersion ("1610")
 * @param - serviceDecomposition - Decomposition for R1710 
 * (if macro provides serviceDecompsition then serviceModelInfo, serviceInstanceId & serviceInstanceName will be ignored)
 *
 * Outputs:
 * @param - rollbackData (localRB->null)
 * @param - rolledBack (no localRB->null, localRB F->false, localRB S->true)
 * @param - WorkflowException
 * @param - serviceInstanceName - (GET from AAI if null in input)
 *
 */
public class DoCreateE2EServiceInstance extends AbstractServiceTaskProcessor {

	String Prefix="DCRESI_"
	ExceptionUtil exceptionUtil = new ExceptionUtil()
	JsonUtils jsonUtil = new JsonUtils()
	CatalogDbUtils cutils = new CatalogDbUtils()

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

		try {
			execution.setVariable("prefix", Prefix)
			//Inputs
			//requestDetails.subscriberInfo. for AAI GET & PUT & SDNC assignToplology
			String globalSubscriberId = execution.getVariable("globalSubscriberId") //globalCustomerId
			utils.log("INFO"," ***** globalSubscriberId *****" + globalSubscriberId,  isDebugEnabled)
			//requestDetails.requestParameters. for AAI PUT & SDNC assignTopology
			String serviceType = execution.getVariable("serviceType")
			utils.log("INFO"," ***** serviceType *****" + serviceType,  isDebugEnabled)
			//requestDetails.requestParameters. for SDNC assignTopology
			String productFamilyId = execution.getVariable("productFamilyId") //AAI productFamilyId

			if (isBlank(globalSubscriberId)) {
				msg = "Input globalSubscriberId is null"
				utils.log("INFO", msg, isDebugEnabled)
				exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			}
			
			if (isBlank(serviceType)) {
				msg = "Input serviceType is null"
				utils.log("INFO", msg, isDebugEnabled)
				exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			}
			
			if (productFamilyId == null) {
				execution.setVariable("productFamilyId", "")
			}
			
			String sdncCallbackUrl = execution.getVariable('URN_mso_workflow_sdncadapter_callback')
			if (isBlank(sdncCallbackUrl)) {
				msg = "URN_mso_workflow_sdncadapter_callback is null"
				utils.log("INFO", msg, isDebugEnabled)
				exceptionUtil.buildAndThrowWorkflowException(execution, 500, msg)
			}
			execution.setVariable("sdncCallbackUrl", sdncCallbackUrl)
			utils.log("INFO","SDNC Callback URL: " + sdncCallbackUrl, isDebugEnabled)

			//requestDetails.modelInfo.for AAI PUT servieInstanceData 			
			//requestDetails.requestInfo. for AAI GET/PUT serviceInstanceData 
			String serviceInstanceName = execution.getVariable("serviceInstanceName")
			String serviceInstanceId = execution.getVariable("serviceInstanceId")
			String uuiRequest = execution.getVariable("uuiRequest")
			String modelInvariantUuid = jsonUtil.getJsonValue(uuiRequest, "service.serviceInvariantUuid")
			String modelUuid = jsonUtil.getJsonValue(uuiRequest, "service.serviceUuid")
			String serviceModelName = jsonUtil.getJsonValue(uuiRequest, "service.parameters.templateName")
			execution.setVariable("serviceModelName", serviceModelName)
			//aai serviceType and Role can be setted as fixed value now.
			String aaiServiceType = "E2E Service"
			String aaiServiceRole = "E2E Service"
			
			execution.setVariable("modelInvariantUuid", modelInvariantUuid)
			execution.setVariable("modelUuid", modelUuid)

			//AAI PUT
			String oStatus = execution.getVariable("initialStatus") ?: ""
			if ("TRANSPORT".equalsIgnoreCase(serviceType))
			{
				oStatus = "Created"
			}

			String statusLine = isBlank(oStatus) ? "" : "<orchestration-status>${oStatus}</orchestration-status>"
				
			AaiUtil aaiUriUtil = new AaiUtil(this)
			String aai_uri = aaiUriUtil.getBusinessCustomerUri(execution)
			String namespace = aaiUriUtil.getNamespaceFromUri(aai_uri)
			String serviceInstanceData =
					"""<service-instance xmlns=\"${namespace}\">
			        <service-instance-id>${serviceInstanceId}</service-instance-id>
			        <service-instance-name>${serviceInstanceName}</service-instance-name>
					<service-type>${aaiServiceType}</service-type>
					<service-role>${aaiServiceRole}</service-role>
					${statusLine}
				    <model-invariant-id>${modelInvariantUuid}</model-invariant-id>
				    <model-version-id>${modelUuid}</model-version-id>
					</service-instance>""".trim()					
			execution.setVariable("serviceInstanceData", serviceInstanceData)
			utils.logAudit(serviceInstanceData)
			utils.log("INFO", " aai_uri " + aai_uri + " namespace:" + namespace, isDebugEnabled)
			utils.log("INFO", " 'payload' to create Service Instance in AAI - " + "\n" + serviceInstanceData, isDebugEnabled)

		} 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 prepareDecomposeService(DelegateExecution execution) {
        def isDebugEnabled=execution.getVariable("isDebugLogEnabled")

        try {
            utils.log("INFO", " ***** Inside prepareDecomposeService of create generic e2e service ***** ", isDebugEnabled)
            String modelInvariantUuid = execution.getVariable("modelInvariantUuid")
            String modelUuid = execution.getVariable("modelUuid")
            //here modelVersion is not set, we use modelUuid to decompose the service.
            String serviceModelInfo = """{
            "modelInvariantUuid":"${modelInvariantUuid}",
            "modelUuid":"${modelUuid}",
            "modelVersion":""
             }"""
            execution.setVariable("serviceModelInfo", serviceModelInfo)

            utils.log("DEBUG", " ***** Completed prepareDecomposeService of  create generic e2e service ***** ", isDebugEnabled)
        } catch (Exception ex) {
            // try error in method block
            String exceptionMessage = "Bpmn error encountered in  create generic e2e service flow. Unexpected Error from method prepareDecomposeService() - " + ex.getMessage()
            exceptionUtil.buildAndThrowWorkflowException(execution, 7000, exceptionMessage)
        }
     }

    public void processDecomposition(DelegateExecution execution) {
        def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
    
        utils.log("INFO", " ***** Inside processDecomposition() of  create generic e2e service flow ***** ", isDebugEnabled)
        try {
            ServiceDecomposition serviceDecomposition = execution.getVariable("serviceDecomposition")
        } catch (Exception ex) {
            String exceptionMessage = "Bpmn error encountered in  create generic e2e service flow. processDecomposition() - " + ex.getMessage()
            utils.log("INFO", exceptionMessage, isDebugEnabled)
            exceptionUtil.buildAndThrowWorkflowException(execution, 7000, exceptionMessage)
        }
    }
    
    public void doServicePreOperation(DelegateExecution execution){
       //we need a service plugin platform here. 
    	ServiceDecomposition serviceDecomposition = execution.getVariable("serviceDecomposition")
    	String uuiRequest = execution.getVariable("uuiRequest")		
    	String newUuiRequest = ServicePluginFactory.getInstance().preProcessService(serviceDecomposition, uuiRequest);
    	execution.setVariable("uuiRequest", newUuiRequest)	
    }
    
    public void doServiceHoming(DelegateExecution execution) {
    	//we need a service plugin platform here. 
    	ServiceDecomposition serviceDecomposition = execution.getVariable("serviceDecomposition")
    	String uuiRequest = execution.getVariable("uuiRequest")		
    	String newUuiRequest = ServicePluginFactory.getInstance().doServiceHoming(serviceDecomposition, uuiRequest);
    	execution.setVariable("uuiRequest", newUuiRequest)	
    }
    
	public void postProcessAAIGET(DelegateExecution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO"," ***** postProcessAAIGET ***** ", isDebugEnabled)
		String msg = ""

		try {
			String serviceInstanceName = execution.getVariable("serviceInstanceName")
			boolean succInAAI = execution.getVariable("GENGS_SuccessIndicator")
			if(!succInAAI){
				utils.log("INFO","Error getting Service-instance from AAI", + serviceInstanceName, isDebugEnabled)
				WorkflowException workflowException = execution.getVariable("WorkflowException")
				utils.logAudit("workflowException: " + workflowException)
				if(workflowException != null){
					exceptionUtil.buildAndThrowWorkflowException(execution, workflowException.getErrorCode(), workflowException.getErrorMessage())
				}
				else
				{
					msg = "Failure in postProcessAAIGET GENGS_SuccessIndicator:" + succInAAI
					utils.log("INFO", msg, isDebugEnabled)
					exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
				}
			}
			else
			{
				boolean foundInAAI = execution.getVariable("GENGS_FoundIndicator")
				if(foundInAAI){
					utils.log("INFO","Found Service-instance in AAI", isDebugEnabled)
					msg = "ServiceInstance already exists in AAI:" + serviceInstanceName
					utils.log("INFO", msg, isDebugEnabled)
					exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
				}
			}
		} catch (BpmnError e) {
			throw e;
		} catch (Exception ex) {
			msg = "Exception in DoCreateServiceInstance.postProcessAAIGET. " + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
			exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
		}
		utils.log("INFO"," *** Exit postProcessAAIGET *** ", isDebugEnabled)
	}

	public void postProcessAAIPUT(DelegateExecution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO"," ***** postProcessAAIPUT ***** ", isDebugEnabled)
		String msg = ""
		try {
			String serviceInstanceId = execution.getVariable("serviceInstanceId")
			boolean succInAAI = execution.getVariable("GENPS_SuccessIndicator")
			if(!succInAAI){
				utils.log("INFO","Error putting Service-instance in AAI", + serviceInstanceId, isDebugEnabled)
				WorkflowException workflowException = execution.getVariable("WorkflowException")
				utils.logAudit("workflowException: " + workflowException)
				if(workflowException != null){
					exceptionUtil.buildAndThrowWorkflowException(execution, workflowException.getErrorCode(), workflowException.getErrorMessage())
				}
			}
			else
			{
				//start rollback set up
				RollbackData rollbackData = new RollbackData()
				def disableRollback = execution.getVariable("disableRollback")
				rollbackData.put("SERVICEINSTANCE", "disableRollback", disableRollback.toString())
				rollbackData.put("SERVICEINSTANCE", "rollbackAAI", "true")
				rollbackData.put("SERVICEINSTANCE", "serviceInstanceId", serviceInstanceId)
				rollbackData.put("SERVICEINSTANCE", "subscriptionServiceType", execution.getVariable("subscriptionServiceType"))
				rollbackData.put("SERVICEINSTANCE", "globalSubscriberId", execution.getVariable("globalSubscriberId"))
				execution.setVariable("rollbackData", rollbackData)
			}

		} catch (BpmnError e) {
			throw e;
		} catch (Exception ex) {
			msg = "Exception in DoCreateServiceInstance.postProcessAAIDEL. " + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
			exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
		}
		utils.log("INFO"," *** Exit postProcessAAIPUT *** ", isDebugEnabled)
	}
	
	public void postProcessAAIGET2(DelegateExecution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO"," ***** postProcessAAIGET2 ***** ", isDebugEnabled)
		String msg = ""

		try {
			String serviceInstanceName = execution.getVariable("serviceInstanceName")
			boolean succInAAI = execution.getVariable("GENGS_SuccessIndicator")
			if(!succInAAI){
				utils.log("INFO","Error getting Service-instance from AAI in postProcessAAIGET2", + serviceInstanceName, isDebugEnabled)
				WorkflowException workflowException = execution.getVariable("WorkflowException")
				utils.logAudit("workflowException: " + workflowException)
				if(workflowException != null){
					exceptionUtil.buildAndThrowWorkflowException(execution, workflowException.getErrorCode(), workflowException.getErrorMessage())
				}
				else
				{
					msg = "Failure in postProcessAAIGET2 GENGS_SuccessIndicator:" + succInAAI
					utils.log("INFO", msg, isDebugEnabled)
					exceptionUtil.buildAndThrowWorkflowException(execution, 2500, msg)
				}
			}
			else
			{
				boolean foundInAAI = execution.getVariable("GENGS_FoundIndicator")
				if(foundInAAI){
					String aaiService = execution.getVariable("GENGS_service")
					if (!isBlank(aaiService) && (utils.nodeExists(aaiService, "service-instance-name"))) {
						execution.setVariable("serviceInstanceName",  utils.getNodeText1(aaiService, "service-instance-name"))
						utils.log("INFO","Found Service-instance in AAI.serviceInstanceName:" + execution.getVariable("serviceInstanceName"), isDebugEnabled)
					}
				}
			}
		} catch (BpmnError e) {
			throw e;
		} catch (Exception ex) {
			msg = "Exception in DoCreateServiceInstance.postProcessAAIGET2 " + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
			exceptionUtil.buildAndThrowWorkflowException(execution, 7000, msg)
		}
		utils.log("INFO"," *** Exit postProcessAAIGET2 *** ", isDebugEnabled)
	}

	public void preProcessRollback (DelegateExecution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO"," ***** preProcessRollback ***** ", isDebugEnabled)
		try {
			
			Object workflowException = execution.getVariable("WorkflowException");

			if (workflowException instanceof WorkflowException) {
				utils.log("INFO", "Prev workflowException: " + workflowException.getErrorMessage(), isDebugEnabled)
				execution.setVariable("prevWorkflowException", workflowException);
				//execution.setVariable("WorkflowException", null);
			}
		} catch (BpmnError e) {
			utils.log("INFO", "BPMN Error during preProcessRollback", isDebugEnabled)
		} catch(Exception ex) {
			String msg = "Exception in preProcessRollback. " + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
		}
		utils.log("INFO"," *** Exit preProcessRollback *** ", isDebugEnabled)
	}

	public void postProcessRollback (DelegateExecution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO"," ***** postProcessRollback ***** ", isDebugEnabled)
		String msg = ""
		try {
			Object workflowException = execution.getVariable("prevWorkflowException");
			if (workflowException instanceof WorkflowException) {
				utils.log("INFO", "Setting prevException to WorkflowException: ", isDebugEnabled)
				execution.setVariable("WorkflowException", workflowException);
			}
			execution.setVariable("rollbackData", null)
		} catch (BpmnError b) {
			utils.log("INFO", "BPMN Error during postProcessRollback", isDebugEnabled)
			throw b;
		} catch(Exception ex) {
			msg = "Exception in postProcessRollback. " + ex.getMessage()
			utils.log("INFO", msg, isDebugEnabled)
		}
		utils.log("INFO"," *** Exit postProcessRollback *** ", isDebugEnabled)
	}

	public void preInitResourcesOperStatus(DelegateExecution execution){
        def isDebugEnabled = execution.getVariable("isDebugLogEnabled")

        utils.log("INFO", " ======== STARTED preInitResourcesOperStatus Process ======== ", isDebugEnabled)
        try{
            String serviceId = execution.getVariable("serviceInstanceId")
            String operationId = execution.getVariable("operationId")
            String operationType = execution.getVariable("operationType")
            String resourceTemplateUUIDs = ""
            String result = "processing"
            String progress = "0"
            String reason = ""
            String operationContent = "Prepare service creation"
            utils.log("INFO", "Generated new operation for Service Instance serviceId:" + serviceId + " operationId:" + operationId + " operationType:" + operationType, isDebugEnabled)
            serviceId = UriUtils.encode(serviceId,"UTF-8")
            execution.setVariable("serviceInstanceId", serviceId)
            execution.setVariable("operationId", operationId)
            execution.setVariable("operationType", operationType)
            ServiceDecomposition serviceDecomposition = execution.getVariable("serviceDecomposition")
            List<Resource>  resourceList = serviceDecomposition.getServiceResources()
            
            for(Resource resource : resourceList){
                    resourceTemplateUUIDs  = resourceTemplateUUIDs + resource.getModelInfo().getModelCustomizationUuid() + ":"
            }           

            def dbAdapterEndpoint = "http://mso.mso.testlab.openecomp.org:8080/dbadapters/RequestsDbAdapter"
            execution.setVariable("CVFMI_dbAdapterEndpoint", dbAdapterEndpoint)
            utils.log("INFO", "DB Adapter Endpoint is: " + dbAdapterEndpoint, isDebugEnabled)

            String payload =
                """<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
                        xmlns:ns="http://org.openecomp.mso/requestsdb">
                        <soapenv:Header/>
                        <soapenv:Body>
                            <ns:initResourceOperationStatus xmlns:ns="http://org.openecomp.mso/requestsdb">
								<serviceId>${serviceId}</serviceId>
								<operationId>${operationId}</operationId>
								<operationType>${operationType}</operationType>
								<resourceTemplateUUIDs>${resourceTemplateUUIDs}</resourceTemplateUUIDs>
                            </ns:initResourceOperationStatus>
                    	</soapenv:Body>
                	</soapenv:Envelope>"""

            payload = utils.formatXml(payload)
            execution.setVariable("CVFMI_initResOperStatusRequest", payload)
            utils.log("INFO", "Outgoing initResourceOperationStatus: \n" + payload, isDebugEnabled)
            utils.logAudit("CreateVfModuleInfra Outgoing initResourceOperationStatus Request: " + payload)

        }catch(Exception e){
            utils.log("ERROR", "Exception Occured Processing preInitResourcesOperStatus. Exception is:\n" + e, isDebugEnabled)
            execution.setVariable("CVFMI_ErrorResponse", "Error Occurred during preInitResourcesOperStatus Method:\n" + e.getMessage())
        }
        utils.log("INFO", "======== COMPLETED preInitResourcesOperStatus Process ======== ", isDebugEnabled)  
	}

	// prepare input param for using DoCreateResources.bpmn
	public void preProcessForAddResource(DelegateExecution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		utils.log("INFO", " ======== STARTED preProcessForAddResource Process ======== ", isDebugEnabled)
		
		ServiceDecomposition serviceDecomposition = execution.getVariable("serviceDecomposition")
		List<Resource> addResourceList = serviceDecomposition.getServiceResources()
		execution.setVariable("addResourceList", addResourceList)
		
		utils.log("INFO", "======== COMPLETED preProcessForAddResource Process ======== ", isDebugEnabled)
	}

	public void postProcessForAddResource(DelegateExecution execution) {
		def isDebugEnabled=execution.getVariable("isDebugLogEnabled")
		// do nothing now
	
	}

}