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.GetItemWeightForm;
020import com.echothree.control.user.item.common.result.ItemResultFactory;
021import com.echothree.model.control.item.server.control.ItemControl;
022import com.echothree.model.control.item.server.logic.ItemLogic;
023import com.echothree.model.control.item.server.logic.ItemWeightTypeLogic;
024import com.echothree.model.control.uom.server.logic.UnitOfMeasureTypeLogic;
025import com.echothree.util.common.command.BaseResult;
026import com.echothree.util.common.message.ExecutionErrors;
027import com.echothree.util.common.validation.FieldDefinition;
028import com.echothree.util.common.validation.FieldType;
029import com.echothree.util.server.control.BaseSimpleCommand;
030import java.util.List;
031import javax.enterprise.context.Dependent;
032import javax.inject.Inject;
033
034@Dependent
035public class GetItemWeightCommand
036        extends BaseSimpleCommand<GetItemWeightForm> {
037
038    // No COMMAND_SECURITY_DEFINITION, anyone may execute this command.
039    private final static List<FieldDefinition> FORM_FIELD_DEFINITIONS;
040    
041    static {
042        FORM_FIELD_DEFINITIONS = List.of(
043                new FieldDefinition("ItemName", FieldType.ENTITY_NAME, true, null, null),
044                new FieldDefinition("UnitOfMeasureTypeName", FieldType.ENTITY_NAME, true, null, null),
045                new FieldDefinition("ItemWeightTypeName", FieldType.ENTITY_NAME, true, null, null)
046        );
047    }
048
049    @Inject
050    ItemControl itemControl;
051
052    @Inject
053    ItemLogic itemLogic;
054
055    @Inject
056    ItemWeightTypeLogic itemWeightTypeLogic;
057
058    @Inject
059    UnitOfMeasureTypeLogic unitOfMeasureTypeLogic;
060
061
062    /** Creates a new instance of GetItemWeightCommand */
063    public GetItemWeightCommand() {
064        super(null, FORM_FIELD_DEFINITIONS, false);
065    }
066
067    @Override
068    protected BaseResult execute() {
069        var result = ItemResultFactory.getGetItemWeightResult();
070        var itemName = form.getItemName();
071        var item = itemLogic.getItemByName(this, itemName);
072
073        if(!hasExecutionErrors()) {
074            var unitOfMeasureTypeName = form.getUnitOfMeasureTypeName();
075            var unitOfMeasureKind = item.getLastDetail().getUnitOfMeasureKind();
076            var unitOfMeasureType = unitOfMeasureTypeLogic.getUnitOfMeasureTypeByName(this, unitOfMeasureKind, unitOfMeasureTypeName);
077
078            if(!hasExecutionErrors()) {
079                var itemWeightType = itemWeightTypeLogic.getItemWeightTypeByName(this, form.getItemWeightTypeName());
080
081                if(!hasExecutionErrors()) {
082                    var itemWeight = itemControl.getItemWeight(item, unitOfMeasureType, itemWeightType);
083
084                    if(itemWeight != null) {
085                        result.setItemWeight(itemControl.getItemWeightTransfer(getUserVisit(), itemWeight));
086                    } else {
087                        addExecutionError(ExecutionErrors.UnknownItemWeight.name(), item.getLastDetail().getItemName(),
088                                unitOfMeasureType.getLastDetail().getUnitOfMeasureTypeName(),
089                                itemWeightType.getLastDetail().getItemWeightTypeName());
090                    }
091                }
092            }
093        }
094
095        return result;
096    }
097    
098}