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.item.server.command;
018
019import com.echothree.control.user.item.common.form.DeleteRelatedItemForm;
020import com.echothree.model.control.item.server.control.ItemControl;
021import com.echothree.model.control.party.common.PartyTypes;
022import com.echothree.model.control.security.common.SecurityRoleGroups;
023import com.echothree.model.control.security.common.SecurityRoles;
024import com.echothree.model.data.user.common.pk.UserVisitPK;
025import com.echothree.util.common.message.ExecutionErrors;
026import com.echothree.util.common.validation.FieldDefinition;
027import com.echothree.util.common.validation.FieldType;
028import com.echothree.util.common.command.BaseResult;
029import com.echothree.util.server.control.BaseSimpleCommand;
030import com.echothree.util.server.control.CommandSecurityDefinition;
031import com.echothree.util.server.control.PartyTypeDefinition;
032import com.echothree.util.server.control.SecurityRoleDefinition;
033import com.echothree.util.server.persistence.Session;
034import java.util.List;
035import javax.enterprise.context.Dependent;
036
037@Dependent
038public class DeleteRelatedItemCommand
039        extends BaseSimpleCommand<DeleteRelatedItemForm> {
040
041    private final static CommandSecurityDefinition COMMAND_SECURITY_DEFINITION;
042    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
043    
044    static {
045        COMMAND_SECURITY_DEFINITION = new CommandSecurityDefinition(List.of(
046                new PartyTypeDefinition(PartyTypes.UTILITY.name(), null),
047                new PartyTypeDefinition(PartyTypes.EMPLOYEE.name(), List.of(
048                        new SecurityRoleDefinition(SecurityRoleGroups.RelatedItem.name(), SecurityRoles.Delete.name())
049                ))
050        ));
051
052        FORM_FIELD_DEFINITIONS = List.of(
053                new FieldDefinition("RelatedItemTypeName", FieldType.ENTITY_NAME, true, null, null),
054                new FieldDefinition("FromItemName", FieldType.ENTITY_NAME, true, null, null),
055                new FieldDefinition("ToItemName", FieldType.ENTITY_NAME, true, null, null)
056                );
057    }
058    
059    /** Creates a new instance of DeleteRelatedItemCommand */
060    public DeleteRelatedItemCommand() {
061        super(COMMAND_SECURITY_DEFINITION, FORM_FIELD_DEFINITIONS, false);
062    }
063    
064    @Override
065    protected BaseResult execute() {
066        var itemControl = Session.getModelController(ItemControl.class);
067        var relatedItemTypeName = form.getRelatedItemTypeName();
068        var relatedItemType = itemControl.getRelatedItemTypeByName(relatedItemTypeName);
069        
070        if(relatedItemType != null) {
071            var fromItemName = form.getFromItemName();
072            var fromItem = itemControl.getItemByName(fromItemName);
073            
074            if(fromItem != null) {
075                var toItemName = form.getToItemName();
076                var toItem = itemControl.getItemByName(toItemName);
077                
078                if(toItem != null) {
079                    var relatedItem = itemControl.getRelatedItemForUpdate(relatedItemType, fromItem, toItem);
080                    
081                    if(relatedItem != null) {
082                        itemControl.deleteRelatedItem(relatedItem, getPartyPK());
083                    } else {
084                        addExecutionError(ExecutionErrors.UnknownRelatedItem.name(), relatedItemTypeName, fromItemName, toItemName);
085                    }
086                } else {
087                    addExecutionError(ExecutionErrors.UnknownToItemName.name(), toItemName);
088                }
089            } else {
090                addExecutionError(ExecutionErrors.UnknownFromItemName.name(), fromItemName);
091            }
092        } else {
093            addExecutionError(ExecutionErrors.UnknownRelatedItemTypeName.name(), relatedItemTypeName);
094        }
095        
096        return null;
097    }
098    
099}