/**

  * Copyright 2010 The Kuali Foundation Licensed under the

  * Educational Community 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.osedu.org/licenses/ECL-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.

  */

 package org.kuali.student.core.proposal.service.impl;

 import java.util.ArrayList;

 import java.util.List;

 import javax.persistence.NoResultException;

 import org.kuali.student.core.dto.ReferenceTypeInfo;

 import org.kuali.student.core.exceptions.DoesNotExistException;

 import org.kuali.student.core.exceptions.InvalidParameterException;

 import org.kuali.student.core.exceptions.VersionMismatchException;

 import org.kuali.student.core.proposal.dao.ProposalDao;

 import org.kuali.student.core.proposal.dto.ProposalInfo;

 import org.kuali.student.core.proposal.dto.ProposalTypeInfo;

 import org.kuali.student.core.proposal.entity.Proposal;

 import org.kuali.student.core.proposal.entity.ProposalAttribute;

 import org.kuali.student.core.proposal.entity.ProposalOrg;

 import org.kuali.student.core.proposal.entity.ProposalPerson;

 import org.kuali.student.core.proposal.entity.ProposalReference;

 import org.kuali.student.core.proposal.entity.ProposalReferenceType;

 import org.kuali.student.core.proposal.entity.ProposalType;

 import org.kuali.student.core.service.impl.BaseAssembler;

 import org.springframework.beans.BeanUtils;

 /**

  * Convert between DTO and enties

  *

  * @author Kuali Rice Team (kuali-rice@googlegroups.com)

  *

  */

 public class ProposalAssembler extends BaseAssembler {

     public static List<ProposalInfo> toProposalInfos(List<Proposal> entities) {

         List<ProposalInfo> dtos = new ArrayList<ProposalInfo>(entities.size());

         for (Proposal entity : entities) {

             dtos.add(toProposalInfo(entity));

         }

         return dtos;

     }

     public static ProposalInfo toProposalInfo(Proposal entity) {

         ProposalInfo dto = new ProposalInfo();

         BeanUtils.copyProperties(entity, dto,

                 new String[] { "proposerPerson", "proposerOrg", "proposalReferenceType", "proposalReference", "attributes", "type" });

         if (entity.getProposerPerson() != null) {

             List<String> personIds = new ArrayList<String>(entity.getProposerPerson().size());

             for (ProposalPerson person : entity.getProposerPerson()) {

                 personIds.add(person.getPersonId());

             }

             dto.setProposerPerson(personIds);

         }

         if (entity.getProposerOrg() != null) {

             List<String> orgIds = new ArrayList<String>(entity.getProposerOrg().size());

             for (ProposalOrg org : entity.getProposerOrg()) {

                 orgIds.add(org.getOrgId());

             }

             dto.setProposerOrg(orgIds);

         }

         if (entity.getProposalReference() != null){

             if (entity.getProposalReference().size() > 0){

                 dto.setProposalReferenceType(entity.getProposalReference().get(0).getType().getId());

             }

             List<String> objectIds = new ArrayList<String>(entity.getProposalReference().size());

             for (ProposalReference object : entity.getProposalReference()) {

                 objectIds.add(object.getObjectReferenceId());

             }

             dto.setProposalReference(objectIds);

         }

         dto.setAttributes(toAttributeMap(entity.getAttributes()));

         dto.setMetaInfo(toMetaInfo(entity.getMeta(), entity.getVersionNumber()));

         dto.setType(entity.getType().getId());

         return dto;

     }

     public static List<ProposalTypeInfo> toProposalTypeInfos(List<ProposalType> entities) {

         List<ProposalTypeInfo> dtos = new ArrayList<ProposalTypeInfo>(entities.size());

         for (ProposalType entity : entities) {

             dtos.add(toProposalTypeInfo(entity));

         }

         return dtos;

     }

     public static ProposalTypeInfo toProposalTypeInfo(ProposalType entity) {

         ProposalTypeInfo dto = new ProposalTypeInfo();

         BeanUtils.copyProperties(entity, dto,

                 new String[] { "attributes" });

         dto.setDesc(entity.getDescr());

         dto.setAttributes(toAttributeMap(entity.getAttributes()));

         return dto;

     }

     public static List<ReferenceTypeInfo> toReferenceTypeInfos(List<ProposalReferenceType> entities) {

         List<ReferenceTypeInfo> dtos = new ArrayList<ReferenceTypeInfo>(entities.size());

         for (ProposalReferenceType entity : entities) {

             dtos.add(toReferenceTypeInfo(entity));

         }

         return dtos;

     }

     public static ReferenceTypeInfo toReferenceTypeInfo(ProposalReferenceType entity) {

         ReferenceTypeInfo dto = new ReferenceTypeInfo();

         BeanUtils.copyProperties(entity, dto,

                 new String[] { "attributes" });

         dto.setAttributes(toAttributeMap(entity.getAttributes()));

         return dto;

     }

     public static Proposal toProposal(String proposalTypeKey, ProposalInfo  proposalInfo, ProposalDao dao) throws DoesNotExistException, VersionMismatchException, InvalidParameterException {

         Proposal proposal;

         if (proposalInfo.getId() != null && !proposalInfo.getId().isEmpty()) {

             proposal = dao.fetch(Proposal.class, proposalInfo.getId());

             if (!String.valueOf(proposal.getVersionNumber()).equals(proposalInfo.getMetaInfo().getVersionInd())){

                 throw new VersionMismatchException("Proposal to be updated is not the current version");

             }

         } else {

             proposal = new Proposal();

             proposal.setProposerPerson(new ArrayList<ProposalPerson>(0));

             proposal.setProposerOrg(new ArrayList<ProposalOrg>(0));

         }

         // Copy all basic properties

         BeanUtils.copyProperties(proposalInfo, proposal, new String[] { "id", "type",

                 "attributes", "metaInfo", "proposerPerson", "proposerOrg", "proposalReference" });

         // Copy Attributes

         proposal.setAttributes(toGenericAttributes(ProposalAttribute.class, proposalInfo.getAttributes(), proposal, dao));

         // TODO Rework when JPA gets cascading deletes (2.0)

         List<ProposalPerson> persons = proposal.getProposerPerson();

         for (ProposalPerson person : persons) {

             dao.getEm().remove(person);

         }

         List<ProposalOrg> orgs = proposal.getProposerOrg();

         for (ProposalOrg org : orgs) {

             dao.getEm().remove(org);

         }

         persons.clear();

         orgs.clear();

         if (proposalInfo.getProposerPerson() != null) {

             // Copy ProposerPersons

             for (String proposer : proposalInfo.getProposerPerson()) {

                 ProposalPerson person;

                 try {

                     person = dao.getProposalPerson(proposer);

                 } catch (NoResultException e) {

                     person = new ProposalPerson();

                     person.setPersonId(proposer);

                     person.setProposal(proposal);

                 }

                 persons.add(person);

             }

         }

         if (proposalInfo.getProposerOrg() != null) {

             // Copy ProposerPersons

             for (String proposer : proposalInfo.getProposerOrg()) {

                 ProposalOrg org;

                 try {

                     org = dao.getProposalOrg(proposer);

                 } catch (NoResultException e) {

                     ProposalOrg proposerOrg = new ProposalOrg();

                     proposerOrg.setOrgId(proposer);

                     proposerOrg.setProposal(proposal);

                     org = dao.create(proposerOrg);

                 }

                 orgs.add(org);

             }

             proposal.setProposerOrg(orgs);

         }

         if (proposalInfo.getProposalReference() != null) {

             // Copy propsal references

             List<ProposalReference> references = new ArrayList<ProposalReference>(proposalInfo.getProposalReference().size());

             for (String objectReferenceId : proposalInfo.getProposalReference()) {

                 ProposalReference ref;

                 try {

                     ref = dao.getObjectReference(objectReferenceId, proposalInfo.getProposalReferenceType());

                 } catch (NoResultException e) {

                     ProposalReference objectReference = new ProposalReference();

                     objectReference.setObjectReferenceId(objectReferenceId);

                     ProposalReferenceType refType = dao.fetch(ProposalReferenceType.class, proposalInfo.getProposalReferenceType());

                     objectReference.setType(refType);

                     ref = dao.create(objectReference);

                 }

                 references.add(ref);

             }

             proposal.setProposalReference(references);

         }

         ProposalType proposalType = dao.fetch(ProposalType.class, proposalTypeKey);

         proposal.setType(proposalType);

         return proposal;

     }

 }