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