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.DeleteMessageForm;
020import com.echothree.model.control.message.server.control.MessageControl;
021import com.echothree.model.data.user.common.pk.UserVisitPK;
022import com.echothree.util.common.command.BaseResult;
023import com.echothree.util.common.message.ExecutionErrors;
024import com.echothree.util.common.validation.FieldDefinition;
025import com.echothree.util.common.validation.FieldType;
026import com.echothree.util.server.control.BaseSimpleCommand;
027import java.util.List;
028import javax.enterprise.context.Dependent;
029import javax.inject.Inject;
030
031@Dependent
032public class DeleteMessageCommand
033        extends BaseSimpleCommand<DeleteMessageForm> {
034    
035    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
036    
037    static {
038        FORM_FIELD_DEFINITIONS = List.of(
039                new FieldDefinition("ComponentVendorName", FieldType.ENTITY_NAME, true, null, null),
040                new FieldDefinition("EntityTypeName", FieldType.ENTITY_TYPE_NAME, true, null, null),
041                new FieldDefinition("MessageTypeName", FieldType.ENTITY_NAME, true, null, null),
042                new FieldDefinition("MessageName", FieldType.ENTITY_NAME, true, null, null)
043        );
044    }
045
046    @Inject
047    MessageControl messageControl;
048
049    
050    /** Creates a new instance of DeleteMessageCommand */
051    public DeleteMessageCommand() {
052        super(null, FORM_FIELD_DEFINITIONS, false);
053    }
054    
055    @Override
056    protected BaseResult execute() {
057        var componentVendorName = form.getComponentVendorName();
058        var componentVendor = componentControl.getComponentVendorByName(componentVendorName);
059        
060        if(componentVendor != null) {
061            var entityTypeName = form.getEntityTypeName();
062            var entityType = entityTypeControl.getEntityTypeByName(componentVendor, entityTypeName);
063            
064            if(entityType != null) {
065                var messageTypeName = form.getMessageTypeName();
066                var messageType = messageControl.getMessageTypeByNameForUpdate(entityType, messageTypeName);
067                
068                if(messageType != null) {
069                    var messageName = form.getMessageName();
070                    var message = messageControl.getMessageByNameForUpdate(messageType, messageName);
071                    
072                    if(message != null) {
073                        messageControl.deleteMessage(message, getPartyPK());
074                    } else {
075                        addExecutionError(ExecutionErrors.UnknownMessageName.name(), messageName);
076                    }
077                } else {
078                    addExecutionError(ExecutionErrors.UnknownMessageTypeName.name(), messageTypeName);
079                }
080            } else {
081                addExecutionError(ExecutionErrors.UnknownEntityTypeName.name(), entityTypeName);
082            }
083        } else {
084            addExecutionError(ExecutionErrors.UnknownComponentVendorName.name(), componentVendorName);
085        }
086        
087        return null;
088    }
089    
090}