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