001// --------------------------------------------------------------------------------
002// Copyright 2002-2026 Echo Three, LLC
003//
004// Licensed under the Apache License, Version 2.0 (the "License");
005// you may not use this file except in compliance with the License.
006// You may obtain a copy of the License at
007//
008//     http://www.apache.org/licenses/LICENSE-2.0
009//
010// Unless required by applicable law or agreed to in writing, software
011// distributed under the License is distributed on an "AS IS" BASIS,
012// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013// See the License for the specific language governing permissions and
014// limitations under the License.
015// --------------------------------------------------------------------------------
016
017package com.echothree.control.user.core.server.command;
018
019import com.echothree.control.user.core.common.form.DeleteEntityCollectionAttributeForm;
020import com.echothree.model.control.core.common.EntityAttributeTypes;
021import com.echothree.model.control.core.server.logic.EntityAttributeLogic;
022import com.echothree.model.control.core.server.logic.EntityInstanceLogic;
023import com.echothree.model.control.party.common.PartyTypes;
024import com.echothree.model.data.user.common.pk.UserVisitPK;
025import com.echothree.util.common.command.BaseResult;
026import com.echothree.util.common.message.ExecutionErrors;
027import com.echothree.util.common.validation.FieldDefinition;
028import com.echothree.util.common.validation.FieldType;
029import com.echothree.util.server.control.BaseSimpleCommand;
030import com.echothree.util.server.control.CommandSecurityDefinition;
031import com.echothree.util.server.control.PartyTypeDefinition;
032import java.util.List;
033import javax.enterprise.context.Dependent;
034import javax.inject.Inject;
035
036@Dependent
037public class DeleteEntityCollectionAttributeCommand
038        extends BaseSimpleCommand<DeleteEntityCollectionAttributeForm> {
039
040    private final static CommandSecurityDefinition COMMAND_SECURITY_DEFINITION;
041    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
042    
043    static {
044        COMMAND_SECURITY_DEFINITION = new CommandSecurityDefinition(List.of(
045                new PartyTypeDefinition(PartyTypes.UTILITY.name(), null),
046                new PartyTypeDefinition(PartyTypes.EMPLOYEE.name(), null)
047        ));
048
049        FORM_FIELD_DEFINITIONS = List.of(
050                new FieldDefinition("EntityRef", FieldType.ENTITY_REF, false, null, null),
051                new FieldDefinition("Uuid", FieldType.UUID, false, null, null),
052                new FieldDefinition("EntityAttributeName", FieldType.ENTITY_NAME, false, null, null),
053                new FieldDefinition("EntityAttributeUuid", FieldType.UUID, false, null, null),
054                new FieldDefinition("EntityRefAttribute", FieldType.ENTITY_REF, false, null, null),
055                new FieldDefinition("UuidAttribute", FieldType.UUID, false, null, null)
056        );
057    }
058
059    @Inject
060    EntityAttributeLogic entityAttributeLogic;
061
062    @Inject
063    EntityInstanceLogic entityInstanceLogic;
064
065    
066    /** Creates a new instance of DeleteEntityCollectionAttributeCommand */
067    public DeleteEntityCollectionAttributeCommand() {
068        super(COMMAND_SECURITY_DEFINITION, FORM_FIELD_DEFINITIONS, false);
069    }
070    
071    @Override
072    protected BaseResult execute() {
073        var entityInstance = entityInstanceLogic.getEntityInstance(this, form);
074
075        if(!hasExecutionErrors()) {
076            var entityAttribute = entityAttributeLogic.getEntityAttribute(this, entityInstance, form, form,
077                    EntityAttributeTypes.COLLECTION);
078
079            if(!hasExecutionErrors()) {
080                var entityInstanceAttribute = entityAttributeLogic.getEntityInstanceAttribute(this, form);
081
082                if(!hasExecutionErrors()) {
083                    var entityCollectionAttribute = coreControl.getEntityCollectionAttributeForUpdate(entityAttribute, entityInstance, entityInstanceAttribute);
084                    
085                    if(entityCollectionAttribute != null) {
086                        coreControl.deleteEntityCollectionAttribute(entityCollectionAttribute, getPartyPK());
087                    } else {
088                        addExecutionError(ExecutionErrors.UnknownEntityCollectionAttribute.name(),
089                                entityInstanceLogic.getEntityRefFromEntityInstance(entityInstance),
090                                entityAttribute.getLastDetail().getEntityAttributeName(),
091                                entityInstanceLogic.getEntityRefFromEntityInstance(entityInstanceAttribute));
092                    }
093                }
094            }
095        }
096        
097        return null;
098    }
099    
100}