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.uom.server.command;
018
019import com.echothree.control.user.uom.common.form.DeleteUnitOfMeasureEquivalentForm;
020import com.echothree.model.control.uom.server.control.UomControl;
021import com.echothree.model.data.user.common.pk.UserVisitPK;
022import com.echothree.util.common.message.ExecutionErrors;
023import com.echothree.util.common.validation.FieldDefinition;
024import com.echothree.util.common.validation.FieldType;
025import com.echothree.util.common.command.BaseResult;
026import com.echothree.util.server.control.BaseSimpleCommand;
027import java.util.List;
028import javax.enterprise.context.Dependent;
029import javax.inject.Inject;
030
031@Dependent
032public class DeleteUnitOfMeasureEquivalentCommand
033        extends BaseSimpleCommand<DeleteUnitOfMeasureEquivalentForm> {
034    
035    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
036    
037    static {
038        FORM_FIELD_DEFINITIONS = List.of(
039                new FieldDefinition("UnitOfMeasureKindName", FieldType.ENTITY_NAME, true, null, null),
040                new FieldDefinition("FromUnitOfMeasureTypeName", FieldType.ENTITY_NAME, true, null, null),
041                new FieldDefinition("ToUnitOfMeasureTypeName", FieldType.ENTITY_NAME, true, null, null)
042        );
043    }
044
045    @Inject
046    UomControl uomControl;
047
048    
049    /** Creates a new instance of DeleteUnitOfMeasureEquivalentCommand */
050    public DeleteUnitOfMeasureEquivalentCommand() {
051        super(null, FORM_FIELD_DEFINITIONS, false);
052    }
053    
054    @Override
055    protected BaseResult execute() {
056        var unitOfMeasureKindName = form.getUnitOfMeasureKindName();
057        var unitOfMeasureKind = uomControl.getUnitOfMeasureKindByName(unitOfMeasureKindName);
058        
059        if(unitOfMeasureKind != null) {
060            var fromUnitOfMeasureTypeName = form.getFromUnitOfMeasureTypeName();
061            var fromUnitOfMeasureType = uomControl.getUnitOfMeasureTypeByName(unitOfMeasureKind, fromUnitOfMeasureTypeName);
062            
063            if(fromUnitOfMeasureType != null) {
064                var toUnitOfMeasureTypeName = form.getToUnitOfMeasureTypeName();
065                var toUnitOfMeasureType = uomControl.getUnitOfMeasureTypeByName(unitOfMeasureKind, toUnitOfMeasureTypeName);
066                
067                if(toUnitOfMeasureType != null) {
068                    var unitOfMeasureEquivalent = uomControl.getUnitOfMeasureEquivalentForUpdate(fromUnitOfMeasureType, toUnitOfMeasureType);
069                    
070                    if(unitOfMeasureEquivalent != null) {
071                        var inUseError = uomControl.countUnitOfMeasureKindUsesByUnitOfMeasureKind(unitOfMeasureKind) != 0;
072                        
073                        if(!inUseError) {
074                            uomControl.deleteUnitOfMeasureEquivalent(unitOfMeasureEquivalent, getPartyPK());
075                        } else {
076                            addExecutionError(ExecutionErrors.CannotDeleteUnitOfMeasureKindInUse.name());
077                        }
078                    } else {
079                        addExecutionError(ExecutionErrors.UnknownUnitOfMeasureEquivalent.name());
080                    }
081                } else {
082                    addExecutionError(ExecutionErrors.UnknownToUnitOfMeasureTypeName.name(), toUnitOfMeasureTypeName);
083                }
084            } else {
085                addExecutionError(ExecutionErrors.UnknownFromUnitOfMeasureTypeName.name(), fromUnitOfMeasureTypeName);
086            }
087        } else {
088            addExecutionError(ExecutionErrors.UnknownUnitOfMeasureKindName.name(), unitOfMeasureKindName);
089        }
090        
091        return null;
092    }
093    
094}