001// --------------------------------------------------------------------------------
002// Copyright 2002-2024 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.model.control.uom.server.util;
018
019import com.echothree.model.control.uom.server.control.UomControl;
020import com.echothree.model.data.uom.server.entity.UnitOfMeasureEquivalent;
021import com.echothree.model.data.uom.server.entity.UnitOfMeasureKind;
022import com.echothree.model.data.uom.server.entity.UnitOfMeasureType;
023import com.echothree.util.server.string.UnitOfMeasureUtils;
024import java.util.Iterator;
025import java.util.List;
026
027public class Conversion {
028    
029    private UomControl uomControl;
030    private UnitOfMeasureKind unitOfMeasureKind;
031    private UnitOfMeasureType unitOfMeasureType;
032    private long quantity;
033    
034    /** Creates a new instance of Conversion */
035    public Conversion(UomControl uomControl, UnitOfMeasureKind unitOfMeasureKind, Long quantity) {
036        this.uomControl = uomControl;
037        this.unitOfMeasureKind = unitOfMeasureKind;
038        this.quantity = quantity;
039    }
040    
041    /** Creates a new instance of Conversion */
042    public Conversion(UomControl uomControl, UnitOfMeasureType unitOfMeasureType, Long quantity) {
043        this.uomControl = uomControl;
044        this.unitOfMeasureType = unitOfMeasureType;
045        this.quantity = quantity;
046    }
047    
048    
049    private void convertToHighestUnitOfMeasureType(UnitOfMeasureType unitOfMeasureType, long measure) {
050        List<UnitOfMeasureEquivalent> unitOfMeasureEquivalents = uomControl.getUnitOfMeasureEquivalentsByToUnitOfMeasureType(unitOfMeasureType);
051        UnitOfMeasureType attemptUnitOfMeasureType = unitOfMeasureType;
052        long attemptMeasure = measure;
053        
054        if(!unitOfMeasureEquivalents.isEmpty()) {
055            for(var unitOfMeasureEquivalent : unitOfMeasureEquivalents) {
056                long toQuantity = unitOfMeasureEquivalent.getToQuantity();
057                
058                // If there's no remainder, then check to see if its lower than the existing attemptMeasure
059                if(measure % toQuantity == 0) {
060                    long trialMeasure = measure / toQuantity;
061                    
062                    if(trialMeasure < attemptMeasure) {
063                        attemptUnitOfMeasureType = unitOfMeasureEquivalent.getFromUnitOfMeasureType();
064                        attemptMeasure = trialMeasure;
065                    }
066                }
067            }
068            
069            if(attemptMeasure != measure) {
070                convertToHighestUnitOfMeasureType(attemptUnitOfMeasureType, attemptMeasure);
071            }
072        }
073        
074        if(this.unitOfMeasureType == null) {
075            this.unitOfMeasureType = attemptUnitOfMeasureType;
076            quantity = attemptMeasure;
077        }
078    }
079    
080    public Conversion convertToHighestUnitOfMeasureType() {
081        convertToHighestUnitOfMeasureType(UnitOfMeasureUtils.getInstance().getLowestUnitOfMeasureType(uomControl, unitOfMeasureKind), quantity);
082        
083        return this;
084    }
085    
086    public Conversion convertToLowestUnitOfMeasureType() {
087        List<UnitOfMeasureEquivalent> unitOfMeasureEquivalents = uomControl.getUnitOfMeasureEquivalentsByFromUnitOfMeasureType(unitOfMeasureType);
088        
089        while(!unitOfMeasureEquivalents.isEmpty()) {
090            Iterator<UnitOfMeasureEquivalent> iter = unitOfMeasureEquivalents.iterator();
091            UnitOfMeasureEquivalent unitOfMeasureEquivalent = iter.next();
092            
093            unitOfMeasureType = unitOfMeasureEquivalent.getToUnitOfMeasureType();
094            quantity = quantity * unitOfMeasureEquivalent.getToQuantity();
095            
096            unitOfMeasureEquivalents = uomControl.getUnitOfMeasureEquivalentsByFromUnitOfMeasureType(unitOfMeasureType);
097        }
098        
099        return this;
100    }
101    
102    public UnitOfMeasureKind getUnitOfMeasureKind() {
103        return unitOfMeasureKind;
104    }
105    
106    public void setUnitOfMeasureKind(UnitOfMeasureKind unitOfMeasureKind) {
107        this.unitOfMeasureKind = unitOfMeasureKind;
108    }
109    
110    public UnitOfMeasureType getUnitOfMeasureType() {
111        return unitOfMeasureType;
112    }
113    
114    public void setUnitOfMeasureType(UnitOfMeasureType unitOfMeasureType) {
115        this.unitOfMeasureType = unitOfMeasureType;
116    }
117    
118    public Long getQuantity() {
119        return quantity;
120    }
121    
122    public void setQuantity(Long quantity) {
123        this.quantity = quantity;
124    }
125    
126}