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