001// --------------------------------------------------------------------------------
002// Copyright 2002-2024 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.core.server.entity.ComponentVendor;
022import com.echothree.model.data.core.server.entity.EntityType;
023import com.echothree.model.data.message.server.entity.Message;
024import com.echothree.model.data.message.server.entity.MessageType;
025import com.echothree.model.data.user.common.pk.UserVisitPK;
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.common.command.BaseResult;
030import com.echothree.util.server.control.BaseSimpleCommand;
031import com.echothree.util.server.persistence.Session;
032import java.util.Arrays;
033import java.util.Collections;
034import java.util.List;
035
036public class DeleteMessageCommand
037        extends BaseSimpleCommand<DeleteMessageForm> {
038    
039    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
040    
041    static {
042        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
043            new FieldDefinition("ComponentVendorName", FieldType.ENTITY_NAME, true, null, null),
044            new FieldDefinition("EntityTypeName", FieldType.ENTITY_TYPE_NAME, true, null, null),
045            new FieldDefinition("MessageTypeName", FieldType.ENTITY_NAME, true, null, null),
046            new FieldDefinition("MessageName", FieldType.ENTITY_NAME, true, null, null)
047        ));
048    }
049    
050    /** Creates a new instance of DeleteMessageCommand */
051    public DeleteMessageCommand(UserVisitPK userVisitPK, DeleteMessageForm form) {
052        super(userVisitPK, form, null, FORM_FIELD_DEFINITIONS, false);
053    }
054    
055    @Override
056    protected BaseResult execute() {
057        var coreControl = getCoreControl();
058        String componentVendorName = form.getComponentVendorName();
059        ComponentVendor componentVendor = coreControl.getComponentVendorByName(componentVendorName);
060        
061        if(componentVendor != null) {
062            String entityTypeName = form.getEntityTypeName();
063            EntityType entityType = coreControl.getEntityTypeByName(componentVendor, entityTypeName);
064            
065            if(entityType != null) {
066                var messageControl = Session.getModelController(MessageControl.class);
067                String messageTypeName = form.getMessageTypeName();
068                MessageType messageType = messageControl.getMessageTypeByNameForUpdate(entityType, messageTypeName);
069                
070                if(messageType != null) {
071                    String messageName = form.getMessageName();
072                    Message message = messageControl.getMessageByNameForUpdate(messageType, messageName);
073                    
074                    if(message != null) {
075                        messageControl.deleteMessage(message, getPartyPK());
076                    } else {
077                        addExecutionError(ExecutionErrors.UnknownMessageName.name(), messageName);
078                    }
079                } else {
080                    addExecutionError(ExecutionErrors.UnknownMessageTypeName.name(), messageTypeName);
081                }
082            } else {
083                addExecutionError(ExecutionErrors.UnknownEntityTypeName.name(), entityTypeName);
084            }
085        } else {
086            addExecutionError(ExecutionErrors.UnknownComponentVendorName.name(), componentVendorName);
087        }
088        
089        return null;
090    }
091    
092}