/**
 * Copyright 2004-2014 The Kuali Foundation
 *
 * Licensed under the Educational Community License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.opensource.org/licenses/ecl2.php
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.kuali.kpme.core.paystep;

import java.math.BigDecimal;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.kuali.kpme.core.api.paystep.PayStep;
import org.kuali.kpme.core.api.paystep.PayStepContract;
import org.kuali.kpme.core.bo.HrBusinessObject;
import org.kuali.kpme.core.util.HrConstants;
import org.kuali.rice.core.api.mo.ModelObjectUtils;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;

public class PayStepBo extends HrBusinessObject implements Comparable, PayStepContract {

        static class KeyFields {
                private static final String PAY_STEP = "payStep";
        }

        /*
         * convert bo to immutable
         *
         * Can be used with ModelObjectUtils:
         *
         * org.kuali.rice.core.api.mo.ModelObjectUtils.transform(listOfPayStepBo, PayStepBo.toImmutable);
         */
        public static final ModelObjectUtils.Transformer<PayStepBo, PayStep> toImmutable =
                        new ModelObjectUtils.Transformer<PayStepBo, PayStep>() {
                public PayStep transform(PayStepBo input) {
                        return PayStepBo.to(input);
                };
        };

        /*
         * convert immutable to bo
         * 
         * Can be used with ModelObjectUtils:
         * 
         * org.kuali.rice.core.api.mo.ModelObjectUtils.transform(listOfPayStep, PayStepBo.toBo);
         */
        public static final ModelObjectUtils.Transformer<PayStep, PayStepBo> toBo =
                        new ModelObjectUtils.Transformer<PayStep, PayStepBo>() {
                public PayStepBo transform(PayStep input) {
                        return PayStepBo.from(input);
                };
        };

        private static final Logger LOG = Logger.getLogger(PayStepBo.class);
        //KPME-2273/1965 Primary Business Keys List.    
        public static final ImmutableList<String> BUSINESS_KEYS = new ImmutableList.Builder<String>()
                        .add(KeyFields.PAY_STEP)
                        .build();

        private static final long serialVersionUID = 1L;

        private String pmPayStepId;
        private String payStep;
        private String salaryGroup;
        private String payGrade;
        private int stepNumber;
        private BigDecimal compRate;
        private int serviceAmount;
        private String serviceUnit;

        @Override
        public ImmutableMap<String, Object> getBusinessKeyValuesMap() {
                return  new ImmutableMap.Builder<String, Object>()
                                .put(KeyFields.PAY_STEP, this.getPayStep())
                                .build();
        }

        @Override
        public boolean isActive() {
                return super.isActive();
        }

        @Override
        public void setActive(boolean active) {
                super.setActive(active);
        }

        @Override
        public String getObjectId() {
                return super.getObjectId();
        }

        @Override
        public Long getVersionNumber() {
                return super.getVersionNumber();
        }

        @Override
        public int compareTo(Object o) {
                if(o instanceof PayStepBo) {
                        PayStepBo s = (PayStepBo) o;
                        if(StringUtils.equals(s.salaryGroup,salaryGroup)
                                        && StringUtils.equals(s.payGrade,payGrade)) {

                                Integer otherServiceTime = 0;
                                if(StringUtils.equals(s.serviceUnit,HrConstants.SERVICE_TIME_YEAR))
                                        otherServiceTime = s.getServiceAmount() * 12;
                                else
                                        otherServiceTime = s.getServiceAmount();

                                Integer thisServiceTime = 0;
                                if(StringUtils.equals(serviceUnit, HrConstants.SERVICE_TIME_YEAR))
                                        thisServiceTime = serviceAmount * 12;
                                else
                                        thisServiceTime = serviceAmount;

                                return otherServiceTime.compareTo(thisServiceTime);
                        }
                        else 
                                //      throw new IllegalArgumentException("pay step must be within the same salary group and pay grade");
                                LOG.error("pay step must be within the same salary group and pay grade");
                }

                return 0;
        }

        public String getPayStep() {
                return payStep;
        }

        public void setPayStep(String payStep) {
                this.payStep = payStep;
        }

        public String getSalaryGroup() {
                return salaryGroup;
        }

        public void setSalaryGroup(String salaryGroup) {
                this.salaryGroup = salaryGroup;
        }

        public String getPayGrade() {
                return payGrade;
        }

        public void setPayGrade(String payGrade) {
                this.payGrade = payGrade;
        }

        public int getStepNumber() {
                return stepNumber;
        }

        public void setStepNumber(int stepNumber) {
                this.stepNumber = stepNumber;
        }

        public BigDecimal getCompRate() {
                return compRate;
        }

        public void setCompRate(BigDecimal compRate) {
                this.compRate = compRate;
        }

        public int getServiceAmount() {
                return serviceAmount;
        }

        public void setServiceAmount(int serviceInterval) {
                this.serviceAmount = serviceInterval;
        }

        public String getServiceUnit() {
                return serviceUnit;
        }

        public void setServiceUnit(String serviceUnit) {
                this.serviceUnit = serviceUnit;
        }

        @Override
        public String getId() {
                return pmPayStepId;
        }

        @Override
        public void setId(String id) {
                pmPayStepId = id;
        }

        @Override
        protected String getUniqueKey() {
                return getPmPayStepId();
        }

        public String getPmPayStepId() {
                return pmPayStepId;
        }

        public void setPmPayStepId(String pmPayStepId) {
                this.pmPayStepId = pmPayStepId;
        }

        public static PayStepBo from(PayStep im) {
                if (im == null) {
                        return null;
                }
                PayStepBo ps = new PayStepBo();
                ps.setPmPayStepId(im.getPmPayStepId());
                ps.setPayStep(im.getPayStep());
                ps.setSalaryGroup(im.getSalaryGroup());
                ps.setPayGrade(im.getPayGrade());
                ps.setStepNumber(im.getStepNumber());
                ps.setCompRate(im.getCompRate());
                ps.setServiceAmount(im.getServiceAmount());
                ps.setServiceUnit(im.getServiceUnit());

                // finally copy over the common fields into ps from im
                copyCommonFields(ps, im);

                return ps;
        }

        public static PayStep to(PayStepBo bo) {
                if (bo == null) {
                        return null;
                }
                return PayStep.Builder.create(bo).build();
        }
}