001// --------------------------------------------------------------------------------
002// Copyright 2002-2025 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.DeleteEntityBlobAttributeForm;
020import com.echothree.model.control.core.server.control.EntityInstanceControl;
021import com.echothree.model.control.party.common.PartyTypes;
022import com.echothree.model.control.party.server.control.PartyControl;
023import com.echothree.model.data.user.common.pk.UserVisitPK;
024import com.echothree.util.common.command.BaseResult;
025import com.echothree.util.common.message.ExecutionErrors;
026import com.echothree.util.common.validation.FieldDefinition;
027import com.echothree.util.common.validation.FieldType;
028import com.echothree.util.server.control.BaseSimpleCommand;
029import com.echothree.util.server.control.CommandSecurityDefinition;
030import com.echothree.util.server.control.PartyTypeDefinition;
031import com.echothree.util.server.persistence.Session;
032import java.util.Arrays;
033import java.util.Collections;
034import java.util.List;
035import javax.enterprise.context.RequestScoped;
036
037@RequestScoped
038public class DeleteEntityBlobAttributeCommand
039        extends BaseSimpleCommand<DeleteEntityBlobAttributeForm> {
040
041    private final static CommandSecurityDefinition COMMAND_SECURITY_DEFINITION;
042    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
043    
044    static {
045        COMMAND_SECURITY_DEFINITION = new CommandSecurityDefinition(List.of(
046                new PartyTypeDefinition(PartyTypes.UTILITY.name(), null),
047                new PartyTypeDefinition(PartyTypes.EMPLOYEE.name(), null)
048        ));
049
050        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
051                new FieldDefinition("EntityRef", FieldType.ENTITY_REF, true, null, null),
052                new FieldDefinition("EntityAttributeName", FieldType.ENTITY_NAME, true, null, null),
053                new FieldDefinition("LanguageIsoName", FieldType.ENTITY_NAME, true, null, null)
054                ));
055    }
056    
057    /** Creates a new instance of DeleteEntityBlobAttributeCommand */
058    public DeleteEntityBlobAttributeCommand() {
059        super(COMMAND_SECURITY_DEFINITION, FORM_FIELD_DEFINITIONS, false);
060    }
061    
062    @Override
063    protected BaseResult execute() {
064        var entityInstanceControl = Session.getModelController(EntityInstanceControl.class);
065        var entityRef = form.getEntityRef();
066        var entityInstance = entityInstanceControl.getEntityInstanceByEntityRef(entityRef);
067        
068        if(entityInstance != null) {
069            var entityAttributeName = form.getEntityAttributeName();
070            var entityAttribute = coreControl.getEntityAttributeByName(entityInstance.getEntityType(), entityAttributeName);
071            
072            if(entityAttribute != null) {
073                var partyControl = Session.getModelController(PartyControl.class);
074                var languageIsoName = form.getLanguageIsoName();
075                var language = partyControl.getLanguageByIsoName(languageIsoName);
076                
077                if(language != null) {
078                    var entityBlobAttribute = coreControl.getEntityBlobAttributeForUpdate(entityAttribute, entityInstance, language);
079                    
080                    if(entityBlobAttribute != null) {
081                        coreControl.deleteEntityBlobAttribute(entityBlobAttribute, getPartyPK());
082                    } else {
083                        addExecutionError(ExecutionErrors.UnknownEntityBlobAttribute.name());
084                    }
085                } else {
086                    addExecutionError(ExecutionErrors.UnknownLanguageIsoName.name(), languageIsoName);
087                }
088            } else {
089                var entityTypeDetail = entityInstance.getEntityType().getLastDetail();
090                
091                addExecutionError(ExecutionErrors.UnknownEntityAttributeName.name(), entityTypeDetail.getComponentVendor().getLastDetail().getComponentVendorName(),
092                        entityTypeDetail.getEntityTypeName(), entityAttributeName);
093            }
094        } else {
095            addExecutionError(ExecutionErrors.UnknownEntityRef.name(), entityRef);
096        }
097        
098        return null;
099    }
100    
101}