/**
 *
 * Copyright
 * 2009-2015 Jayway Products AB
 * 2016-2017 Föreningen Sambruk
 *
 * Licensed under AGPL, Version 3.0 (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.gnu.org/licenses/agpl.txt
 *
 * 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 se.streamsource.streamflow.web.context.administration.surface.emailaccesspoints;

import org.qi4j.api.common.Optional;
import org.qi4j.api.constraint.Name;
import org.qi4j.api.entity.EntityReference;
import org.qi4j.api.injection.scope.Structure;
import org.qi4j.api.specification.Specification;
import org.qi4j.api.structure.Module;
import org.qi4j.api.util.Iterables;
import org.qi4j.api.value.ValueBuilder;
import org.qi4j.library.constraints.annotation.MaxLength;
import se.streamsource.dci.api.DeleteContext;
import se.streamsource.dci.api.IndexContext;
import se.streamsource.dci.api.RoleMap;
import se.streamsource.dci.value.link.LinkValue;
import se.streamsource.streamflow.api.administration.surface.EmailAccessPointDTO;
import se.streamsource.streamflow.web.domain.Removable;
import se.streamsource.streamflow.web.domain.entity.organization.EmailAccessPointEntity;
import se.streamsource.streamflow.web.domain.entity.project.ProjectEntity;
import se.streamsource.streamflow.web.domain.structure.casetype.CaseType;
import se.streamsource.streamflow.web.domain.structure.casetype.SelectedCaseTypes;
import se.streamsource.streamflow.web.domain.structure.organization.AccessPointSettings;
import se.streamsource.streamflow.web.domain.structure.organization.EmailAccessPoint;
import se.streamsource.streamflow.web.domain.structure.organization.EmailAccessPoints;
import se.streamsource.streamflow.web.domain.structure.organization.EmailTemplates;
import se.streamsource.streamflow.web.domain.structure.project.Project;

import java.io.IOException;
import java.util.Collections;
import java.util.List;

import static org.qi4j.api.query.QueryExpressions.*;
import static se.streamsource.dci.api.RoleMap.*;

/**
 * TODO
 */
public class EmailAccessPointAdministrationContext
        implements IndexContext<EmailAccessPointDTO>, DeleteContext
{
   @Structure
   Module module;

   public void changedescription( @MaxLength(50) @Name("name") String name )
         throws IllegalArgumentException
   {
      // check if the new description is valid
      EmailAccessPoints.Data accessPoints = RoleMap.role( EmailAccessPoints.Data.class );
      List<EmailAccessPoint> accessPointsList = accessPoints.emailAccessPoints().toList();
      for (EmailAccessPoint accessPoint : accessPointsList)
      {
         if (accessPoint.getDescription().equalsIgnoreCase( name ))
         {
            throw new IllegalArgumentException( "accesspoint_already_exists" );
         }
      }

      RoleMap.role( EmailAccessPoint.class ).changeDescription( name );

   }


   public void delete() throws IOException
   {
      role(EmailAccessPoints.class).removeEmailAccessPoint(role(EmailAccessPoint.class));
   }

   public Iterable<? extends Project> possibleprojects()
   {
      return module.queryBuilderFactory().newQueryBuilder(ProjectEntity.class).
              where(eq(templateFor(Removable.Data.class).removed(), false)).
              newQuery(module.unitOfWorkFactory().currentUnitOfWork());
   }

   public void changeproject(@Name("entity") Project project)
   {
      role(AccessPointSettings.class).changedProject(project);
   }

   public Iterable<CaseType> possiblecasetypes()
   {
      Project project = RoleMap.role( AccessPointSettings.Data.class ).project().get();

      if (project != null)
      {
         SelectedCaseTypes.Data data = (SelectedCaseTypes.Data) project;

         return Iterables.filter(new Specification<CaseType>()
         {
            public boolean satisfiedBy( CaseType item )
            {
               if(item.equals( role( AccessPointSettings.Data.class ).caseType().get() ) )
                  return false;
               return true;
            }
         }, data.selectedCaseTypes());
      } else
         return Collections.emptyList();
   }

   public void changecasetype(@Name("entity") CaseType caseType)
   {
      role(AccessPointSettings.class).changedCaseType(caseType);
   }

   public void changesubject(@Name("subject") String subject)
   {
      role(EmailTemplates.class).changeSubject(subject);
   }

   public void changetemplate(@Name("key") String key, @Optional @Name("template") String template)
   {
      role(EmailTemplates.class).changeTemplate(key, template);
   }

   public EmailAccessPointDTO index()
   {
      EmailAccessPointEntity eap = role(EmailAccessPointEntity.class);

      ValueBuilder<EmailAccessPointDTO> builder = module.valueBuilderFactory().newValueBuilder(EmailAccessPointDTO.class);
      ValueBuilder<LinkValue> linkValueBuilder = module.valueBuilderFactory().newValueBuilder( LinkValue.class );

      builder.prototype().subject().set(eap.subject().get());
      builder.prototype().email().set(eap.getDescription());
      CaseType caseType = eap.caseType().get();
      if( caseType != null )
      {
         linkValueBuilder.prototype().id().set( EntityReference.getEntityReference( caseType ).identity() );
         linkValueBuilder.prototype().text().set( caseType.getDescription() );
         linkValueBuilder.prototype().href().set( "removecasetype" );
         builder.prototype().caseType().set( linkValueBuilder.newInstance() );
      }
      Project project = eap.project().get();
      builder.prototype().project().set(project == null ? null : project.getDescription());

      builder.prototype().messages().set(eap.emailTemplates().get());

      return builder.newInstance();
   }

   public void removecasetype()
   {
      role(AccessPointSettings.class).removeCaseType();
   }
}