/*
 * The Kuali Financial System, a comprehensive financial management system for higher education.
 * 
 * Copyright 2005-2014 The Kuali Foundation
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.kuali.kfs.module.purap.document.validation.impl;

import org.kuali.kfs.module.purap.PurapKeyConstants;
import org.kuali.kfs.module.purap.PurapPropertyConstants;
import org.kuali.kfs.module.purap.businessobject.CreditMemoItem;
import org.kuali.kfs.module.purap.document.VendorCreditMemoDocument;
import org.kuali.kfs.sys.KFSPropertyConstants;
import org.kuali.kfs.sys.document.validation.GenericValidation;
import org.kuali.kfs.sys.document.validation.event.AttributedDocumentEvent;
import org.kuali.rice.core.api.util.type.KualiDecimal;
import org.kuali.rice.kns.service.DataDictionaryService;
import org.kuali.rice.krad.util.GlobalVariables;

public class VendorCreditMemoItemExtendedPriceValidation extends GenericValidation {

    private DataDictionaryService dataDictionaryService;
    private CreditMemoItem itemForValidation;

    public boolean validate(AttributedDocumentEvent event) {
        boolean valid = true;
        VendorCreditMemoDocument cmDocument = (VendorCreditMemoDocument)event.getDocument();
        
        String errorKeyPrefix = KFSPropertyConstants.DOCUMENT + "." + PurapPropertyConstants.ITEM + "[" + (itemForValidation.getItemLineNumber() - 1) + "].";
        String errorKey = errorKeyPrefix + PurapPropertyConstants.EXTENDED_PRICE;
        
        if (itemForValidation.getExtendedPrice() != null) {
            if (itemForValidation.getExtendedPrice().isNegative()) {
                String label = dataDictionaryService.getAttributeErrorLabel(CreditMemoItem.class, PurapPropertyConstants.EXTENDED_PRICE);
                GlobalVariables.getMessageMap().putError(errorKey, PurapKeyConstants.ERROR_CREDIT_MEMO_ITEM_AMOUNT_NONPOSITIVE, label);
                valid = false;
            }
            if (!cmDocument.isSourceVendor()) {
                // check cm extended price is not greater than total invoiced amount
                KualiDecimal invoicedAmount = null;
                if (cmDocument.isSourceDocumentPurchaseOrder()) {
                    invoicedAmount = itemForValidation.getPoTotalAmount();
                }
                else {
                    invoicedAmount = itemForValidation.getPreqTotalAmount();
                }

                if (invoicedAmount == null) {
                    invoicedAmount = KualiDecimal.ZERO;
                }

                if (itemForValidation.getTotalAmount().isGreaterThan(invoicedAmount)) {
                    GlobalVariables.getMessageMap().putError(errorKey, PurapKeyConstants.ERROR_CREDIT_MEMO_ITEM_EXTENDEDPRICE_TOOMUCH);
                    valid = false;
                }
            }

        }

        return valid;
    }

    public DataDictionaryService getDataDictionaryService() {
        return dataDictionaryService;
    }

    public void setDataDictionaryService(DataDictionaryService dataDictionaryService) {
        this.dataDictionaryService = dataDictionaryService;
    }

    public CreditMemoItem getItemForValidation() {
        return itemForValidation;
    }

    public void setItemForValidation(CreditMemoItem itemForValidation) {
        this.itemForValidation = itemForValidation;
    }

}