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package in.shop2020.support.controllers;

import in.shop2020.model.v1.order.EbayOrder;
import in.shop2020.model.v1.order.Order;
import in.shop2020.model.v1.order.OrderStatus;
import in.shop2020.model.v1.order.Transaction;
import in.shop2020.model.v1.order.TransactionService;
import in.shop2020.model.v1.user.User;
import in.shop2020.payments.Payment;
import in.shop2020.payments.PaymentException;
import in.shop2020.payments.PaymentStatus;
import in.shop2020.support.utils.ReportsUtils;
import in.shop2020.thrift.clients.PaymentClient;
import in.shop2020.thrift.clients.TransactionClient;
import in.shop2020.thrift.clients.UserClient;

import java.io.File;
import java.io.FileInputStream;
import java.util.Collection;
import java.util.Date;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.commons.io.FileUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.struts2.convention.annotation.InterceptorRef;
import org.apache.struts2.convention.annotation.InterceptorRefs;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.convention.annotation.Results;
import org.apache.struts2.interceptor.ServletRequestAware;
import org.apache.thrift.TException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings("serial")
@InterceptorRefs({
    @InterceptorRef("defaultStack"),
    @InterceptorRef("login")
})
@Results({
    @Result(name="authfail", type="redirectAction", params = {"actionName" , "reports"})
})
public class EbayPsOrderUpdateController extends ActionSupport implements ServletRequestAware {
        
        private static Logger logger = LoggerFactory.getLogger(EbayPsOrderUpdateController.class);
        
        private HttpServletRequest request;
    private HttpSession session;
    
    private static final int EBAY_SOURCE_ID = 6;
    
    private static final int SALES_RECORD_NUM_INDEX = 0;
    private static final int BUYER_NAME_INDEX = 2;
    private static final int EMAIL_INDEX = 4;
    private static final int ADDR1_INDEX = 5;
    private static final int ADDR2_INDEX = 6;
    private static final int CITY_INDEX = 7;
    private static final int STATE_INDEX = 8;
    private static final int PINCODE_INDEX = 9;
    private static final int EBAY_LISTINGID_INDEX = 11;
    private static final int TRANSACTION_ID_INDEX = 31;
    
    private File orderDataFile;
    private String orderDataFileName;
    private String errorMsg = "";
    private Long rowId = 0L;
        
    public String create() throws TException {
        File fileToCreate = null;
        orderDataFileName = "OrderSheet_"+EBAY_SOURCE_ID+"_"+(new Date().toString());
        try {
            fileToCreate = new File("/tmp/", this.orderDataFileName);
            FileUtils.copyFile(this.orderDataFile, fileToCreate);
        } catch (Exception e) {
           logger.error("Error while writing order data file to the local file system for Ebay", e);
           addActionError("Error while writing order data file to the local file system");
           setErrorMsg(getErrorMsg() + "Error in opening File for Order creation");
        }
        
        
        if(checkForErrors())
            return "authsuccess";
        
        //Parse the file and submit the data for update to the transaction service
        Workbook wb = null;
        try {
            wb = new HSSFWorkbook(new FileInputStream(fileToCreate));
        } catch (Exception e) {
            logger.error("Unable to open the File for Order Creation for Ebay ", e);
            addActionError("Unable to open the File for Order creation");
            setErrorMsg(getErrorMsg() + "Error in opening File for Order creation");
        }
        if(checkForErrors())
            return "authsuccess";
        
        TransactionService.Client tsc = null;
        try {
            tsc = new TransactionClient().getClient();
        } catch (Exception e) {
            logger.error("Unable to establish connection to the transaction service", e);
            addActionError("Unable to establish connection to the transaction service");
            setErrorMsg(getErrorMsg() + "Error in connecting to Order Service");
                }
        
        if(checkForErrors())
            return "authsuccess";
        
        if(checkForErrors())
            return "authsuccess";
        
        Sheet sheet = wb.getSheetAt(0);
        Row firstRow = sheet.getRow(0);
        for (Row row : sheet) {
                User user = null;
                rowId++;
                long orderCountForRow = 0;
            if(row.equals(firstRow))
                continue;
            try { 
                    Order order = null;
                    Transaction transaction = null;
                    try {
                        tsc = new TransactionClient().getClient();
                        row.getCell(EBAY_LISTINGID_INDEX).setCellType(Cell.CELL_TYPE_STRING);
                            EbayOrder ebayOrder = tsc.getEbayOrder(new Double(row.getCell(SALES_RECORD_NUM_INDEX).getNumericCellValue()).longValue(), 
                                        row.getCell(EBAY_LISTINGID_INDEX).getStringCellValue(), null).get(0);
                            row.getCell(TRANSACTION_ID_INDEX).setCellType(Cell.CELL_TYPE_STRING);
                            ebayOrder.setTransactionId(row.getCell(TRANSACTION_ID_INDEX).getStringCellValue());
                            tsc.updateEbayOrder(ebayOrder);
                            order = tsc.getOrder(ebayOrder.getOrderId());
                            if(order.getStatus() != OrderStatus.PAYMENT_PENDING) {
                                setErrorMsg(getErrorMsg() + "<br>Order for row number " + rowId + " has been already processed");
                                continue;
                            }
                            transaction = tsc.getTransaction(order.getTransactionId());
                    } catch (Exception e) {
                        logger.error("Unable to get EbayOrder for row number " + rowId, e);
                        addActionError("Unable to get EbayOrder for row number " + rowId);
                        setErrorMsg(getErrorMsg() + "<br>Unable to get EbayOrder for row number " + rowId);
                        continue;
                    }
        
                    try {   
                        in.shop2020.model.v1.user.UserContextService.Client userClient = new UserClient().getClient();
                        if (userClient.userExists(row.getCell(EMAIL_INDEX).getStringCellValue())) {
                                user = userClient.getUserByEmail(row.getCell(EMAIL_INDEX).getStringCellValue());
                        } else {
                                user = new User();
                                user.setName(row.getCell(BUYER_NAME_INDEX).getStringCellValue());
                                user.setEmail(row.getCell(EMAIL_INDEX).getStringCellValue());
                                user.setSourceId(EBAY_SOURCE_ID);
                                //TODO set password for user;
                                user.setIsAnonymous(false);
                                user = userClient.createUser(user);
                        }
                    } catch (Exception e) {
                        logger.error("Unable to get or create user for row number " + rowId, e);
                        addActionError("Unable to get or create user for row number " + rowId);
                        setErrorMsg(getErrorMsg() + "<br>Unable to get or create user for row number " + rowId);
                        continue;
                        }
                    
                    //TODO Shopping cart is not being set right now Will 
                    transaction.setShoppingCartid(user.getActiveCartId());
                    transaction.setCustomer_id(user.getUserId());
                    transaction.setCreatedOn(new Date().getTime());
                    
                    order.setCustomer_id(user.getUserId());
                    order.setCustomer_email(user.getEmail());
                        order.setCustomer_name(row.getCell(BUYER_NAME_INDEX).getStringCellValue());
                        if (order.getCustomer_mobilenumber()== null || order.getCustomer_mobilenumber() == "") {
                                order.setCustomer_mobilenumber(user.getMobileNumber());
                        }
                        order.setCustomer_address1(row.getCell(ADDR1_INDEX).getStringCellValue());
                        Cell address2Cell = row.getCell(ADDR2_INDEX);
                        if(address2Cell != null && address2Cell.getCellType() != Cell.CELL_TYPE_BLANK) {
                                order.setCustomer_address2(row.getCell(ADDR2_INDEX).getStringCellValue());
                        }
                        order.setCustomer_city(row.getCell(CITY_INDEX).getStringCellValue());
                        order.setCustomer_state(row.getCell(STATE_INDEX).getStringCellValue());
                        row.getCell(PINCODE_INDEX).setCellType(Cell.CELL_TYPE_STRING);
                        order.setCustomer_pincode(row.getCell(PINCODE_INDEX).getStringCellValue());
                        
                    order.setStatus(OrderStatus.SUBMITTED_FOR_PROCESSING);
                    order.setStatusDescription("IN Process");
                    order.setCreated_timestamp(new Date().getTime());
                    
                    orderCountForRow++;
                    try {
                        updatePayment(transaction.getId());
                    } catch (Exception e) {
                        logger.error("Unable to update payment for row number " + rowId, e);
                        addActionError("Unable to update payment for row number " + rowId);
                        setErrorMsg(getErrorMsg() + "<br>Unable to update payment for row number " + rowId);
                        continue;
                    }
                    try {
                        tsc.updateOrderForEbay(order);
                    } catch (Exception e) {
                        logger.error("Unable to update Ebay Order for row number " + rowId, e);
                        addActionError("Unable to update Ebay Order for row number " + rowId);
                        setErrorMsg(getErrorMsg() + "<br>Unable to update Ebay Order for row number " + rowId);
                        continue;
                        }
            } catch (Exception e) {
                logger.error("Unable to update Order for Ebay Order " + rowId, e);
                addActionError("Unable to update Order for Ebay Order " + rowId);
                setErrorMsg(getErrorMsg() + "<br>Unable to update Order for Ebay Order " + rowId);
                continue;
            }
        }
        
        checkForErrors();
        
        return "authsuccess";
    }
    
    private void updatePayment(long merchantTxnId) throws NumberFormatException, PaymentException, TException {
        in.shop2020.payments.PaymentService.Client client = new PaymentClient().getClient();
        Payment payment = client.getPaymentForTxnId(merchantTxnId).get(0);
        client.updatePaymentDetails(payment.getPaymentId(), null, null, null, null, null, null, payment.getReferenceCode(), null, PaymentStatus.AUTHORIZED, null, null);
    }   
    
        public String index() {
        if(!ReportsUtils.canAccessReport((Long)session.getAttribute(ReportsUtils.ROLE), "/ebay-dashboard"))
            return "authfail";
        checkForErrors();
        return "authsuccess";
    }
        
        private boolean checkForErrors(){
        Collection<String> actionErrors = getActionErrors();
        if(actionErrors != null && !actionErrors.isEmpty()){
            for (String str : actionErrors) {
                errorMsg += "<BR/>" + str;
            }
            return true;
        }
        return false;
    }
        
        @Override
        public void setServletRequest(HttpServletRequest request) {
                this.request = request;
        this.session = request.getSession();
        }

        public String getErrorMsg() {
                return errorMsg;
        }

        public void setErrorMsg(String errorMsg) {
                this.errorMsg = errorMsg;
        }

        public Long getRowId() {
                return rowId;
        }

        public void setRowId(Long rowId) {
                this.rowId = rowId;
        }

        public File getOrderDataFile() {
                return orderDataFile;
        }

        public void setOrderDataFile(File orderDataFile) {
                this.orderDataFile = orderDataFile;
        }
        
}