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.message.server.command;
018
019import com.echothree.control.user.message.common.form.DeleteEntityMessageForm;
020import com.echothree.model.control.core.server.control.EntityInstanceControl;
021import com.echothree.model.control.message.server.control.MessageControl;
022import com.echothree.model.data.user.common.pk.UserVisitPK;
023import com.echothree.util.common.command.BaseResult;
024import com.echothree.util.common.message.ExecutionErrors;
025import com.echothree.util.common.validation.FieldDefinition;
026import com.echothree.util.common.validation.FieldType;
027import com.echothree.util.server.control.BaseSimpleCommand;
028import com.echothree.util.server.persistence.Session;
029import java.util.List;
030import javax.enterprise.context.Dependent;
031
032@Dependent
033public class DeleteEntityMessageCommand
034        extends BaseSimpleCommand<DeleteEntityMessageForm> {
035    
036    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
037    
038    static {
039        FORM_FIELD_DEFINITIONS = List.of(
040            new FieldDefinition("EntityRef", FieldType.ENTITY_REF, true, null, null),
041            new FieldDefinition("ComponentVendorName", FieldType.ENTITY_NAME, true, null, null),
042            new FieldDefinition("EntityTypeName", FieldType.ENTITY_TYPE_NAME, true, null, null),
043            new FieldDefinition("MessageTypeName", FieldType.ENTITY_NAME, true, null, null),
044            new FieldDefinition("MessageName", FieldType.TAG, true, null, null)
045        );
046    }
047    
048    /** Creates a new instance of DeleteEntityMessageCommand */
049    public DeleteEntityMessageCommand() {
050        super(null, FORM_FIELD_DEFINITIONS, false);
051    }
052    
053    @Override
054    protected BaseResult execute() {
055        var entityInstanceControl = Session.getModelController(EntityInstanceControl.class);
056        var entityRef = form.getEntityRef();
057        var entityInstance = entityInstanceControl.getEntityInstanceByEntityRef(entityRef);
058        
059        if(entityInstance != null) {
060            var componentVendorName = form.getComponentVendorName();
061            var componentVendor = componentControl.getComponentVendorByName(componentVendorName);
062            
063            if(componentVendor != null) {
064                var entityTypeName = form.getEntityTypeName();
065                var entityType = entityTypeControl.getEntityTypeByName(componentVendor, entityTypeName);
066                
067                if(entityType != null) {
068                    var messageControl = Session.getModelController(MessageControl.class);
069                    var messageTypeName = form.getMessageTypeName();
070                    var messageType = messageControl.getMessageTypeByName(entityType, messageTypeName);
071                    
072                    if(messageType != null) {
073                        var messageName = form.getMessageName();
074                        var message = messageControl.getMessageByName(messageType, messageName);
075                        
076                        if(message != null) {
077                            var entityMessage = messageControl.getEntityMessageForUpdate(entityInstance, message);
078                            
079                            if(entityMessage != null) {
080                                messageControl.deleteEntityMessage(entityMessage, getPartyPK());
081                            } else {
082                                addExecutionError(ExecutionErrors.UnknownEntityMessage.name());
083                            }
084                        } else {
085                            addExecutionError(ExecutionErrors.UnknownMessageName.name(), messageName);
086                        }
087                    } else {
088                        addExecutionError(ExecutionErrors.UnknownMessageTypeName.name(), messageTypeName);
089                    }
090                } else {
091                    addExecutionError(ExecutionErrors.UnknownEntityTypeName.name(), entityTypeName);
092                }
093            } else {
094                addExecutionError(ExecutionErrors.UnknownComponentVendorName.name(), componentVendorName);
095            }
096        } else {
097            addExecutionError(ExecutionErrors.UnknownEntityRef.name(), entityRef);
098        }
099        
100        return null;
101    }
102    
103}