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package in.shop2020.support.controllers;

import java.io.File;
import java.io.FileInputStream;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Collections;
import java.util.Date;
import java.util.List;

import in.shop2020.logistics.DeliveryType;
import in.shop2020.logistics.LogisticsInfo;
import in.shop2020.logistics.LogisticsService;
import in.shop2020.logistics.PickUpType;
import in.shop2020.model.v1.catalog.CatalogService;
import in.shop2020.model.v1.catalog.CatalogServiceException;
import in.shop2020.model.v1.catalog.EbayItem;
import in.shop2020.model.v1.catalog.Item;
import in.shop2020.model.v1.inventory.InventoryService;
import in.shop2020.model.v1.inventory.InventoryServiceException;
import in.shop2020.model.v1.inventory.InventoryType;
import in.shop2020.model.v1.inventory.VendorItemPricing;
import in.shop2020.model.v1.inventory.Warehouse;
import in.shop2020.model.v1.inventory.WarehouseType;
import in.shop2020.model.v1.order.EbayOrder;
import in.shop2020.model.v1.order.LineItem;
import in.shop2020.model.v1.order.Order;
import in.shop2020.model.v1.order.OrderSource;
import in.shop2020.model.v1.order.OrderStatus;
import in.shop2020.model.v1.order.OrderType;
import in.shop2020.model.v1.order.SourceDetail;
import in.shop2020.model.v1.order.Transaction;
import in.shop2020.model.v1.order.TransactionStatus;
import in.shop2020.model.v1.order.TransactionService.Client;
import in.shop2020.model.v1.user.Address;
import in.shop2020.model.v1.user.User;
import in.shop2020.payments.Attribute;
import in.shop2020.payments.PaymentException;
import in.shop2020.payments.PaymentStatus;
import in.shop2020.thrift.clients.CatalogClient;
import in.shop2020.thrift.clients.InventoryClient;
import in.shop2020.thrift.clients.LogisticsClient;
import in.shop2020.thrift.clients.PaymentClient;
import in.shop2020.thrift.clients.TransactionClient;
import in.shop2020.thrift.clients.UserClient;
import in.shop2020.support.utils.ReportsUtils;

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 EbayNormalOrderCreatorController extends ActionSupport implements ServletRequestAware {
        
        private static Logger logger = LoggerFactory.getLogger(EbayNormalOrderCreatorController.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 CUST_MOBILE_INDEX = 3;
    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 QUANTITY_INDEX = 14;
    private static final int AMOUNT_INDEX = 15;
    private static final int TRANSACTION_DATE_INDEX = 21;
    private static final int PAISAPAY_ID_INDEX = 28;
    private static final int TRANSACTION_ID_INDEX = 31;
    
    private static final int SHIP_DATE_INDEX = 24;
    private static final int WAREHOUSE_ID_INDEX = 34;
    private static final int OVERRIDE_BILLING_PRICE_INDEX = 35;
    
    private static final int EBAY_GATEWAY_ID = 16;
    
    private SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yy");
    private SimpleDateFormat sdf2 = new SimpleDateFormat("dd-MMM-yyyy");
    
    private File orderDataFile;
    private String orderDataFileName;
    private String transactionId;
    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");
        }
        
        
        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");
        }
        if(checkForErrors())
            return "authsuccess";
        
        SourceDetail sourceDetail = null;
        User user = null;
        TransactionClient tsc = null;
        try {
            tsc = new TransactionClient();
                        sourceDetail = tsc.getClient().getSourceDetail(EBAY_SOURCE_ID);
        } catch (Exception e) {
            logger.error("Unable to establish connection to the transaction service", e);
            addActionError("Unable to establish connection to the transaction service");
                }
        
        if(checkForErrors())
            return "authsuccess";
        
        in.shop2020.model.v1.user.UserContextService.Client userClient = null;
            try {   
                userClient = new UserClient().getClient();
            } catch (Exception e) {
                logger.error("Unable to establish connection to the User service", e);
                addActionError("Unable to establish connection to the User service");
                }

        if(checkForErrors())
            return "authsuccess";
        
        Sheet sheet = wb.getSheetAt(0);
        Row firstRow = sheet.getRow(0);
        logger.info("Last row number is:" + sheet.getLastRowNum());
        for (Row row : sheet) {
                rowId++;
                long orderCountForRow = 0;
            if(row.equals(firstRow))
                continue;
            
            try {
                    //TODO Get this user from a different method
                    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 mobileNumber for customer
                                //TODO set password for user;
                                user.setIsAnonymous(false);
                                user = userClient.createUser(user);
                        }
            } catch(Exception e) {
                        logger.error("Unable to establish connection to the User service for row number " + (rowId + 1), e);
                addActionError("Unable to establish connection to the User service for row number " + (rowId + 1));
                return "authsuccess";
                }
            Transaction txn = new Transaction();
            txn.setShoppingCartid(user.getActiveCartId());
            txn.setCustomer_id(user.getUserId());
            txn.setCreatedOn(new Date().getTime());
            txn.setTransactionStatus(TransactionStatus.INIT);
            txn.setStatusDescription("Order for Ebay ");
            
            List<Order> orders = new ArrayList<Order>();
            
            double listingPrice = 0;
                double overriddenPrice = 0;
                double totalPrice = 0;
            
            row.getCell(EBAY_LISTINGID_INDEX).setCellType(Cell.CELL_TYPE_STRING);
            String ebayListingId = row.getCell(EBAY_LISTINGID_INDEX).getStringCellValue();
                CatalogService.Client catalogClient = new CatalogClient().getClient();
                EbayItem ebayItem = catalogClient.getEbayItem(ebayListingId);
                long quantity = new Double(row.getCell(QUANTITY_INDEX).getNumericCellValue()).longValue();
                Cell overriddenPriceCell = row.getCell(OVERRIDE_BILLING_PRICE_INDEX);
                if(overriddenPriceCell  != null && overriddenPriceCell .getCellType() != Cell.CELL_TYPE_BLANK) {
                        overriddenPrice = row.getCell(OVERRIDE_BILLING_PRICE_INDEX).getNumericCellValue();
                }
                String totalPriceString = row.getCell(AMOUNT_INDEX).getStringCellValue();
                if(overriddenPrice>=1) {
                        totalPrice = overriddenPrice*quantity;
                        listingPrice = (Double.parseDouble(totalPriceString.substring(3).replace(",","")))/quantity;
                } else {
                        totalPrice = Double.parseDouble(totalPriceString.substring(3).replace(",",""));
                        listingPrice = totalPrice/quantity;
                }
                LineItem lineItem = null;
                try {
                        lineItem = createLineItem(ebayItem.getItemId(), quantity, totalPrice);
                        Double salesRecordNumber = row.getCell(SALES_RECORD_NUM_INDEX).getNumericCellValue();
                        row.getCell(PAISAPAY_ID_INDEX).setCellType(Cell.CELL_TYPE_STRING);
                String paisaPayId = row.getCell(PAISAPAY_ID_INDEX).getStringCellValue();
                        lineItem.setExtra_info("PaisaPayId = " + paisaPayId + " SalesRecordNumber = " + salesRecordNumber);
                } catch (Exception tex) {
                        logger.error("Unable to establish connection to the Catalog service", tex);
                addActionError("Unable to establish connection to the Catalog service");
                return "authsuccess";
                }
            Order order = new Order();
            order.setCustomer_id(user.getUserId());
            order.setCustomer_email(user.getEmail());
                order.setCustomer_name(user.getName());
            try {
                order.setCustomer_mobilenumber(new Double(row.getCell(CUST_MOBILE_INDEX).getNumericCellValue()).toString());
            } catch (Exception e) {
                addActionError("Error in reading mobile Number for rowNumber " + row.getRowNum());
                logger.error("Error in reading mobile Number for rowNumber " + row.getRowNum());
            }
            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_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.setTotal_amount(totalPrice);            
            order.setTotal_weight(lineItem.getTotal_weight());
            order.setLineitems(Collections.singletonList(lineItem));            
            order.setStatus(OrderStatus.SUBMITTED_FOR_PROCESSING);
            order.setStatusDescription("In Process");
            order.setCreated_timestamp(new Date().getTime());
            order.setCod(false);
            try {
                //Date shippingDate = interchangeDateAndMonth(row.getCell(SHIP_DATE_INDEX).getDateCellValue());
                Date shippingDate = row.getCell(SHIP_DATE_INDEX).getDateCellValue();
                order.setPromised_shipping_time(shippingDate.getTime());
                order.setExpected_shipping_time(shippingDate.getTime());
                //order.setPromised_shipping_time(sdf.parse(row.getCell(SHIP_DATE_INDEX).getStringCellValue()).getTime());
                //order.setExpected_shipping_time(sdf.parse(row.getCell(SHIP_DATE_INDEX).getStringCellValue()).getTime());
                Calendar time = Calendar.getInstance();
                time.setTimeInMillis(order.getExpected_shipping_time());
                time.add(Calendar.DAY_OF_MONTH, 3);
                order.setPromised_delivery_time(time.getTimeInMillis());
                order.setExpected_delivery_time(time.getTimeInMillis());
            } catch(Exception e) {
                addActionError("Error in updating Shipping Time for row number " + (rowId + 1));
                logger.error("Error in updating Shipping Time for row number " + (rowId + 1),e);
                continue;
            }
            
            //TODO Delivery time
            InventoryService.Client inventoryClient = null;
            Warehouse fulfillmentWarehouse= null; 
            try {
                inventoryClient = new InventoryClient().getClient();
                Cell warehouseCell = row.getCell(WAREHOUSE_ID_INDEX);
                if(warehouseCell != null && warehouseCell.getCellType() != Cell.CELL_TYPE_BLANK) { 
                        fulfillmentWarehouse = inventoryClient.getWarehouse(new Double(row.getCell(WAREHOUSE_ID_INDEX).getNumericCellValue()).longValue());
                        
                } else if (ebayItem.getDefaultWarehouseId()!=0 ){
                        fulfillmentWarehouse = inventoryClient.getWarehouse(ebayItem.getDefaultWarehouseId());
                } else {
                        List<Long> itemAvailability = inventoryClient.getItemAvailabilityAtLocation(ebayItem.getItemId(), 1);
                        fulfillmentWarehouse = inventoryClient.getWarehouse(itemAvailability.get(0));
                }
                order.setFulfilmentWarehouseId(fulfillmentWarehouse.getId());
                        
                                long billingWarehouseId = 0;
                                if(fulfillmentWarehouse.getBillingWarehouseId()== 0) {
                                        inventoryClient = new InventoryClient().getClient();
                                        List<Warehouse> warehouses = inventoryClient.getWarehouses(WarehouseType.OURS, InventoryType.GOOD, fulfillmentWarehouse.getVendor().getId(), 0, 0);
                                        for(Warehouse warehouse : warehouses) {
                                                if(warehouse.getBillingWarehouseId()!=0) {
                                                        billingWarehouseId = warehouse.getBillingWarehouseId();
                                        break;
                                                }
                                        }
                                }else {
                                        billingWarehouseId = fulfillmentWarehouse.getBillingWarehouseId();
                                }
                                
                                order.setWarehouse_id(billingWarehouseId);
                //order.setWarehouse_id(fulfillmentWarehouse.getBillingWarehouseId());
                        VendorItemPricing vendorItemPricing = inventoryClient.getItemPricing(lineItem.getItem_id(), fulfillmentWarehouse.getVendor().getId());
                        order.getLineitems().get(0).setTransfer_price(vendorItemPricing.getTransferPrice());
                        order.getLineitems().get(0).setNlc(vendorItemPricing.getNlc());
                        } catch (InventoryServiceException e) {
                                addActionError("Error in updating WarehouseId for row number " + rowId + 1);
                logger.error("Error in updating WarehouseId for row number " + (rowId + 1),e);
                continue;
                        }
            
            order.setTotal_amount(totalPrice);
            order.setSource(EBAY_SOURCE_ID);
            orders.add(order);
            orderCountForRow++;
            
            txn.setOrders(orders);
            Client transaction_client = new TransactionClient().getClient();
            try {
                long salesRecNumber = new Double(row.getCell(SALES_RECORD_NUM_INDEX).getNumericCellValue()).longValue();
                if(transaction_client.ebayOrderExists(salesRecNumber, ebayItem.getEbayListingId())) {
                        setErrorMsg(getErrorMsg() + "<br>Duplicate order for salesRecNumber " + salesRecNumber + " and listingId " + ebayItem.getEbayListingId() + " for row number  " + rowId);
                        logger.error("Duplicate order for salesRecNumber " + salesRecNumber + " and listingId " + ebayItem.getEbayListingId());
                        continue;
                }
                try {   
                        LogisticsService.Client logisticsClient = new LogisticsClient().getClient();
                        LogisticsInfo logisticsInfo = logisticsClient.getLogisticsInfo(order.getCustomer_pincode(), 
                                        new Double(order.getLineitems().get(0).getItem_id()).longValue(), DeliveryType.PREPAID, PickUpType.COURIER);
                        if(logisticsInfo.getProviderId()<7) {
                                String airwaybillNo= logisticsClient.getEmptyAWB(logisticsInfo.getProviderId(), DeliveryType.PREPAID);
                                order.setAirwaybill_no(airwaybillNo);
                                order.setTracking_id(airwaybillNo);
                        }
                        order.setLogistics_provider_id(logisticsInfo.getProviderId());
                } catch (Exception e) {
                        logger.error("Error while setting logistics provider for order for rowId " + rowId, e);
                    addActionError("Error while setting logistics provider for order for rowId " + rowId);
                    setErrorMsg(getErrorMsg() + "<br>Error while setting logistics provider for order for rowId " + rowId);
                    continue;
                }
                transactionId =  String.valueOf(transaction_client.createTransaction(txn));
                row.getCell(PAISAPAY_ID_INDEX).setCellType(Cell.CELL_TYPE_STRING);
                String paisaPayId = row.getCell(PAISAPAY_ID_INDEX).getStringCellValue();
                long paymentId = createPayment(user, paisaPayId, totalPrice);
                
                //TODO
                /*in.shop2020.model.v1.order.Attribute orderAttribute = new in.shop2020.model.v1.order.Attribute();
                orderAttribute.setName("tinNumber");
                orderAttribute.setValue(sourceDetail.getTinNumber());

                if(!sourceDetail.getTinNumber().equals("") && !(sourceDetail.getTinNumber() == null)) {
                        transaction_client.setOrderAttributeForTransaction(Long.parseLong(transactionId), orderAttribute);
                }*/
                //source
                //transaction_client.changeTransactionStatus(Long.valueOf(transactionId), TransactionStatus.AUTHORIZED, "Ebay Order", 0L, OrderType.B2C, OrderSource.EBAY);
                //transaction_client.changeTransactionStatus(Long.valueOf(transactionId), TransactionStatus.IN_PROCESS, "Ebay Order", 0L, OrderType.B2C, OrderSource.EBAY);
                logger.info("Successfully created transaction: " + transactionId + " for amount: " + totalPrice);
                
                Transaction transaction = transaction_client.getTransaction(Long.parseLong(transactionId));
                order = transaction.getOrders().get(0);
                inventoryClient.reserveItemInWarehouse(ebayItem.getItemId(), fulfillmentWarehouse.getId(), 1, 
                                order.getId(), order.getCreated_timestamp(), order.getPromised_shipping_time(), order.getLineitems().get(0).getQuantity());
                transaction_client.updateOrderForEbay(order);
                EbayOrder ebayOrder = new EbayOrder();
                ebayOrder.setEbayListingId(ebayItem.getEbayListingId());
                ebayOrder.setSalesRecordNumber(new Double(row.getCell(SALES_RECORD_NUM_INDEX).getNumericCellValue()).longValue());
                row.getCell(TRANSACTION_ID_INDEX).setCellType(Cell.CELL_TYPE_STRING);
                ebayOrder.setTransactionId(row.getCell(TRANSACTION_ID_INDEX).getStringCellValue());
                try {
                        //Date ebayTransactionDate = interchangeDateAndMonth(row.getCell(TRANSACTION_DATE_INDEX).getDateCellValue());
                        Date ebayTransactionDate = row.getCell(TRANSACTION_DATE_INDEX).getDateCellValue();
                        ebayOrder.setEbayTxnDate(ebayTransactionDate.getTime());
                        //ebayOrder.setEbayTxnDate(sdf2.parse(row.getCell(TRANSACTION_DATE_INDEX).getStringCellValue()).getTime());
                        //ebayOrder.setEbayTxnDate(sdf.parse(row.getCell(TRANSACTION_DATE_INDEX).getStringCellValue()).getTime());
                } catch (Exception e) {
                        logger.error("Error in setting transaction date for Ebay Order with OrderId : " + order.getId());
                }
                ebayOrder.setOrderId(transaction.getOrders().get(0).getId());
                ebayOrder.setPaisaPayId(paisaPayId);
                ebayOrder.setSubsidyAmount(ebayItem.getSubsidy()*quantity);
                ebayOrder.setListingName(ebayItem.getListingName());
                ebayOrder.setListingPrice(listingPrice);
                transaction_client.createEbayOrder(ebayOrder);
                in.shop2020.payments.PaymentService.Client client = new PaymentClient().getClient();
                client.updatePaymentDetails(paymentId, null, null, null, null, null, null, paisaPayId, null, PaymentStatus.SUCCESS, null, null);
            } catch (Exception e) {
                logger.error("Error while creating order for rowId " + rowId, e);
                addActionError("Error while creating order for rowId " + rowId);
                setErrorMsg(getErrorMsg() + "<br>Error while creating order for row number " + rowId);
                continue;
                }
        }
        
        checkForErrors();
        return "authsuccess";
    }
    
    /*private Date interchangeDateAndMonth(Date date) {
                Date updatedDate = new Date(date.getTime());
                updatedDate.setDate(date.getMonth() + 1);
                updatedDate.setMonth(date.getDate() - 1);
                return updatedDate;
        }*/
    
    private LineItem createLineItem(long itemId, long quantity, double amount) throws CatalogServiceException, TException {
        LineItem lineItem = new LineItem();
        CatalogService.Client catalogClient = new CatalogClient().getClient();
        Item item = catalogClient.getItem(itemId);
        
        lineItem.setProductGroup(item.getProductGroup());
        lineItem.setBrand(item.getBrand());
        lineItem.setModel_number(item.getModelNumber());
        lineItem.setModel_name(item.getModelName());
        lineItem.setExtra_info(item.getFeatureDescription());
        lineItem.setQuantity(quantity);
        lineItem.setItem_id(item.getId());
        lineItem.setUnit_weight(item.getWeight());
        lineItem.setTotal_weight(item.getWeight()*quantity);
        lineItem.setUnit_price(amount/quantity);
        lineItem.setTotal_price(amount);

        if (item.getColor() == null || "NA".equals(item.getColor())) {
            lineItem.setColor("");
        } else {
            lineItem.setColor(item.getColor());
        }
        return lineItem;
        }
    
    private long createPayment(User user, String paisaPayId, double amount) throws NumberFormatException, PaymentException, TException {
        in.shop2020.payments.PaymentService.Client client = new PaymentClient().getClient();
        return client.createPayment(user.getUserId(), amount, EBAY_GATEWAY_ID, Long.valueOf(transactionId), false);
    }   
    
        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;
        }
        
}