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.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.Arrays;
035import java.util.Collections;
036import java.util.List;
037import javax.enterprise.context.RequestScoped;
038
039@RequestScoped
040public class DeleteRelatedItemCommand
041        extends BaseSimpleCommand<DeleteRelatedItemForm> {
042
043    private final static CommandSecurityDefinition COMMAND_SECURITY_DEFINITION;
044    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
045    
046    static {
047        COMMAND_SECURITY_DEFINITION = new CommandSecurityDefinition(Collections.unmodifiableList(Arrays.asList(
048                new PartyTypeDefinition(PartyTypes.UTILITY.name(), null),
049                new PartyTypeDefinition(PartyTypes.EMPLOYEE.name(), Collections.unmodifiableList(Arrays.asList(
050                        new SecurityRoleDefinition(SecurityRoleGroups.RelatedItem.name(), SecurityRoles.Delete.name())
051                )))
052        )));
053
054        FORM_FIELD_DEFINITIONS = Collections.unmodifiableList(Arrays.asList(
055                new FieldDefinition("RelatedItemTypeName", FieldType.ENTITY_NAME, true, null, null),
056                new FieldDefinition("FromItemName", FieldType.ENTITY_NAME, true, null, null),
057                new FieldDefinition("ToItemName", FieldType.ENTITY_NAME, true, null, null)
058                ));
059    }
060    
061    /** Creates a new instance of DeleteRelatedItemCommand */
062    public DeleteRelatedItemCommand() {
063        super(COMMAND_SECURITY_DEFINITION, FORM_FIELD_DEFINITIONS, false);
064    }
065    
066    @Override
067    protected BaseResult execute() {
068        var itemControl = Session.getModelController(ItemControl.class);
069        var relatedItemTypeName = form.getRelatedItemTypeName();
070        var relatedItemType = itemControl.getRelatedItemTypeByName(relatedItemTypeName);
071        
072        if(relatedItemType != null) {
073            var fromItemName = form.getFromItemName();
074            var fromItem = itemControl.getItemByName(fromItemName);
075            
076            if(fromItem != null) {
077                var toItemName = form.getToItemName();
078                var toItem = itemControl.getItemByName(toItemName);
079                
080                if(toItem != null) {
081                    var relatedItem = itemControl.getRelatedItemForUpdate(relatedItemType, fromItem, toItem);
082                    
083                    if(relatedItem != null) {
084                        itemControl.deleteRelatedItem(relatedItem, getPartyPK());
085                    } else {
086                        addExecutionError(ExecutionErrors.UnknownRelatedItem.name(), relatedItemTypeName, fromItemName, toItemName);
087                    }
088                } else {
089                    addExecutionError(ExecutionErrors.UnknownToItemName.name(), toItemName);
090                }
091            } else {
092                addExecutionError(ExecutionErrors.UnknownFromItemName.name(), fromItemName);
093            }
094        } else {
095            addExecutionError(ExecutionErrors.UnknownRelatedItemTypeName.name(), relatedItemTypeName);
096        }
097        
098        return null;
099    }
100    
101}