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.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 com.echothree.util.server.persistence.Session;
028import java.util.Arrays;
029import java.util.Collections;
030import java.util.List;
031import javax.enterprise.context.RequestScoped;
032
033@RequestScoped
034public class DeleteMessageCommand
035        extends BaseSimpleCommand<DeleteMessageForm> {
036    
037    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
038    
039    static {
040        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
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.ENTITY_NAME, true, null, null)
045        ));
046    }
047    
048    /** Creates a new instance of DeleteMessageCommand */
049    public DeleteMessageCommand() {
050        super(null, FORM_FIELD_DEFINITIONS, false);
051    }
052    
053    @Override
054    protected BaseResult execute() {
055        var componentVendorName = form.getComponentVendorName();
056        var componentVendor = componentControl.getComponentVendorByName(componentVendorName);
057        
058        if(componentVendor != null) {
059            var entityTypeName = form.getEntityTypeName();
060            var entityType = entityTypeControl.getEntityTypeByName(componentVendor, entityTypeName);
061            
062            if(entityType != null) {
063                var messageControl = Session.getModelController(MessageControl.class);
064                var messageTypeName = form.getMessageTypeName();
065                var messageType = messageControl.getMessageTypeByNameForUpdate(entityType, messageTypeName);
066                
067                if(messageType != null) {
068                    var messageName = form.getMessageName();
069                    var message = messageControl.getMessageByNameForUpdate(messageType, messageName);
070                    
071                    if(message != null) {
072                        messageControl.deleteMessage(message, getPartyPK());
073                    } else {
074                        addExecutionError(ExecutionErrors.UnknownMessageName.name(), messageName);
075                    }
076                } else {
077                    addExecutionError(ExecutionErrors.UnknownMessageTypeName.name(), messageTypeName);
078                }
079            } else {
080                addExecutionError(ExecutionErrors.UnknownEntityTypeName.name(), entityTypeName);
081            }
082        } else {
083            addExecutionError(ExecutionErrors.UnknownComponentVendorName.name(), componentVendorName);
084        }
085        
086        return null;
087    }
088    
089}