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.GetMessagesForm;
020import com.echothree.control.user.message.common.result.MessageResultFactory;
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 GetMessagesCommand
034        extends BaseSimpleCommand<GetMessagesForm> {
035    
036    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
037    
038    static {
039        FORM_FIELD_DEFINITIONS = List.of(
040            new FieldDefinition("ComponentVendorName", FieldType.ENTITY_NAME, true, null, null),
041            new FieldDefinition("EntityTypeName", FieldType.ENTITY_TYPE_NAME, true, null, null),
042            new FieldDefinition("MessageTypeName", FieldType.ENTITY_NAME, true, null, null)
043        );
044    }
045    
046    /** Creates a new instance of GetMessagesCommand */
047    public GetMessagesCommand() {
048        super(null, FORM_FIELD_DEFINITIONS, true);
049    }
050    
051    @Override
052    protected BaseResult execute() {
053        var result = MessageResultFactory.getGetMessagesResult();
054        var componentVendorName = form.getComponentVendorName();
055        var componentVendor = componentControl.getComponentVendorByName(componentVendorName);
056        
057        if(componentVendor != null) {
058            var userVisit = getUserVisit();
059            var entityTypeName = form.getEntityTypeName();
060            var entityType = entityTypeControl.getEntityTypeByName(componentVendor, entityTypeName);
061            
062            result.setComponentVendor(componentControl.getComponentVendorTransfer(userVisit, componentVendor));
063            
064            if(entityType != null) {
065                var messageControl = Session.getModelController(MessageControl.class);
066                var messageTypeName = form.getMessageTypeName();
067                var messageType = messageControl.getMessageTypeByName(entityType, messageTypeName);
068                
069                result.setEntityType(entityTypeControl.getEntityTypeTransfer(userVisit, entityType));
070                
071                if(messageType != null) {
072                    result.setMessageType(messageControl.getMessageTypeTransfer(userVisit, messageType));
073                    result.setMessages(messageControl.getMessageTransfers(userVisit, messageType));
074                } else {
075                    addExecutionError(ExecutionErrors.UnknownMessageTypeName.name(), messageTypeName);
076                }
077            } else {
078                addExecutionError(ExecutionErrors.UnknownEntityTypeName.name(), entityTypeName);
079            }
080        } else {
081            addExecutionError(ExecutionErrors.UnknownComponentVendorName.name(), componentVendorName);
082        }
083        
084        return result;
085    }
086    
087}