Subversion Repositories SmartDukaan

package in.shop2020.support.services;

import in.shop2020.model.v1.order.LineItem;

import in.shop2020.model.v1.order.Order;

import in.shop2020.model.v1.order.OrderStatus;

import in.shop2020.model.v1.order.TransactionServiceException;

import in.shop2020.payments.Attribute;

import in.shop2020.payments.Constants;

import in.shop2020.payments.Payment;

import in.shop2020.payments.PaymentException;

import in.shop2020.payments.PaymentGateway;

import in.shop2020.payments.PaymentStatus;

import in.shop2020.thrift.clients.PaymentClient;

import in.shop2020.thrift.clients.TransactionClient;

import in.shop2020.thrift.clients.UserClient;

import java.io.ByteArrayOutputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.text.DateFormat;

import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import org.apache.poi.hssf.usermodel.HSSFWorkbook;

import org.apache.poi.ss.usermodel.Cell;

import org.apache.poi.ss.usermodel.CellStyle;

import org.apache.poi.ss.usermodel.DataFormat;

import org.apache.poi.ss.usermodel.Font;

import org.apache.poi.ss.usermodel.Row;

import org.apache.poi.ss.usermodel.Sheet;

import org.apache.poi.ss.usermodel.Workbook;

import org.apache.poi.ss.util.CellRangeAddress;

import org.apache.thrift.TException;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class PaymentDetailsGenerator {

    private static Logger logger = LoggerFactory.getLogger(PaymentDetailsGenerator.class);

    private static final int S_NO = 0, PAYMENT_ID = 1, GATEWAY = 2, PAYMENT_METHOD = 3, TXN_ID = 4, AMOUNT = 5, PAY_STATUS = 6, 

    PAY_STATUS_DESC = 7, TXN_STATUS = 8, REF_CODE = 9, TXN_TIME = 10, CUST_ID = 11, NAME = 12, 

    MOB_NO = 13, ADDR = 14, PINCODE = 15, CITY = 16, STATE = 17, EMAIL = 18, ORDER_ID = 19, ORDER_STATUS = 20, 

    ORDER_STATUS_DESC = 21, ITEM_ID = 22, PROD_GRP = 23, BRAND = 24, MOD_NAME = 25, MOD_NUM = 26, QTY = 27;

    TransactionClient tsc;

    in.shop2020.model.v1.order.TransactionService.Client tClient;

    PaymentClient psc;

    in.shop2020.payments.PaymentService.Client pClient;

    UserClient usc;

    in.shop2020.model.v1.user.UserContextService.Client uClient;

    Map<Long, PaymentGateway> gateWays = new HashMap<Long, PaymentGateway>(4);

    public PaymentDetailsGenerator() {

        try {

            tsc = new TransactionClient();

            tClient = tsc.getClient();

            psc = new PaymentClient();

            pClient = psc.getClient();

            usc = new UserClient();

            uClient = usc.getClient();

        } catch (Exception e) {

            logger.error("Error establishing connection to one of txn, payment or user service", e);

        }

    }

    /**

     * This method is used in PaymentDetailsController.

     * If any pending or failed payment exists between given date range, it returns ByteArrayOutputStream,

     * otherwise it returns null.

     * @param startDate

     * @param endDate

     * @param status 0 --> user input: Successful  1: Failed & pending

     * @return

     */

    public ByteArrayOutputStream generatePaymentDetailsReport(Date startDate, Date endDate, int status) {

        // Retrieving all the payments between start and end dates with status

        // as FAILED or INIT and for gateway Id = 1 (HDFC)

        List<Payment> payments = null;

        List<Payment> pendingPayments = null;

        try {

            if(status == 0) {

                payments = pClient.getPayments(startDate.getTime(), endDate.getTime(), PaymentStatus.SUCCESS, 0);

            } else {

                payments = pClient.getPayments(startDate.getTime(), endDate.getTime(), PaymentStatus.FAILED, 0);

                pendingPayments = pClient.getPayments(startDate.getTime(), endDate.getTime(), PaymentStatus.INIT, 0);

                if (payments != null && pendingPayments != null) {

                    payments.addAll(pendingPayments);

                } else if (pendingPayments != null){

                    payments = pendingPayments;

                }

            }

        } catch (PaymentException e) {

            logger.error("Error in payment service while getting payments", e);

        } catch (TException e) {

            logger.error("Error getting info from payment service", e);

        }

        if (payments == null || payments.isEmpty()) {

            return null;

        }

        // Preparing XLS file for output

        return getSpreadSheetData(payments);

    }

    // Prepares the XLS worksheet object and fills in the data with proper

    // formatting

    private ByteArrayOutputStream getSpreadSheetData(List<Payment> payments) {

        ByteArrayOutputStream baosXLS = new ByteArrayOutputStream();

        Workbook wb = new HSSFWorkbook();

        Font font = wb.createFont();

        font.setBoldweight(Font.BOLDWEIGHT_BOLD);

        CellStyle style = wb.createCellStyle();

        style.setFont(font);

        CellStyle styleWT = wb.createCellStyle();

        styleWT.setWrapText(true);

        DataFormat format = wb.createDataFormat();

        CellStyle styleAmount = wb.createCellStyle();

        styleAmount.setDataFormat(format.getFormat("#,##0.00"));

        Sheet paymentSheet = wb.createSheet("Payment");

        short paymentSerialNo = 0;

        Row titleRow = paymentSheet.createRow(paymentSerialNo++);

        Cell titleCell = titleRow.createCell(0);

        titleCell.setCellValue("Payment Details");

        titleCell.setCellStyle(style);

        paymentSheet.addMergedRegion(new CellRangeAddress(0, 0, 0, 6));

        paymentSheet.createRow(paymentSerialNo++);

        Row headerRow = paymentSheet.createRow(paymentSerialNo++);

        headerRow.createCell(S_NO).setCellValue("S.No");

        headerRow.createCell(PAYMENT_ID).setCellValue("Payment Id");

        headerRow.createCell(GATEWAY).setCellValue("Gateway");

        headerRow.createCell(PAYMENT_METHOD).setCellValue("Payment Method");

        headerRow.getCell(PAYMENT_METHOD).setCellStyle(styleWT);

        headerRow.createCell(TXN_ID).setCellValue("Txn Id");

        headerRow.createCell(AMOUNT).setCellValue("Amount");

        headerRow.createCell(PAY_STATUS).setCellValue("Payment Status");

        headerRow.createCell(PAY_STATUS_DESC).setCellValue("Payment Status Description");

        headerRow.getCell(PAY_STATUS_DESC).setCellStyle(styleWT);

        headerRow.createCell(TXN_STATUS).setCellValue("Gateway Txn Status");

        headerRow.createCell(REF_CODE).setCellValue("Reference Code");

        headerRow.createCell(TXN_TIME).setCellValue("Transaction Time");

        headerRow.createCell(CUST_ID).setCellValue("Customer Id");

        headerRow.createCell(NAME).setCellValue("Name");

        headerRow.createCell(MOB_NO).setCellValue("MobileNo");

        headerRow.createCell(ADDR).setCellValue("Address");

        headerRow.getCell(ADDR).setCellStyle(styleWT);

        headerRow.createCell(PINCODE).setCellValue("Pincode");

        headerRow.createCell(CITY).setCellValue("City");

        headerRow.createCell(STATE).setCellValue("State");

        headerRow.createCell(EMAIL).setCellValue("Login Email");

        headerRow.createCell(ORDER_ID).setCellValue("Order Id");

        headerRow.createCell(ORDER_STATUS).setCellValue("Order Status");

        headerRow.createCell(ORDER_STATUS_DESC).setCellValue("Order Status Description");

        headerRow.createCell(ITEM_ID).setCellValue("Item Id");

        headerRow.createCell(PROD_GRP).setCellValue("Product Group");

        headerRow.createCell(BRAND).setCellValue("Brand");

        headerRow.createCell(MOD_NAME).setCellValue("Model Name");

        headerRow.createCell(MOD_NUM).setCellValue("Model Number");

        headerRow.createCell(QTY).setCellValue("Qty");

        int paymethodColWidth = 25, statusDescWidth = 25, addrColWidth = 35;

        paymentSheet.setColumnWidth(PAYMENT_METHOD, 256 * paymethodColWidth); // set width of payment method column

        paymentSheet.setColumnWidth(PAY_STATUS_DESC, 256 * statusDescWidth); // set width of payment status description column

        paymentSheet.setColumnWidth(ADDR, 256 * addrColWidth); // set width of address column

        List<Order> orders;

        long txnId;

        Row contentRow;

        Calendar calendar = Calendar.getInstance();

        DateFormat formatter = new SimpleDateFormat("EEE, dd-MMM-yyyy hh:mm a");

        float rowHeight = paymentSheet.getDefaultRowHeightInPoints();

        int sNo = 0;

        for (Payment payment : payments) {

            float newRowHeight = paymentSheet.getDefaultRowHeightInPoints();;

            try {

                paymentSerialNo++;

                contentRow = paymentSheet.createRow(paymentSerialNo);

                sNo++;

                contentRow.createCell(S_NO).setCellValue(sNo);

                contentRow.createCell(PAYMENT_ID).setCellValue(payment.getPaymentId());

                PaymentGateway gateway = gateWays.get(payment.getGatewayId());

                if(gateway == null) {

                    try {

                        gateway = pClient.getPaymentGateway(payment.getGatewayId());

                        gateWays.put(payment.getGatewayId(), gateway);

                    } catch (Exception e) {

                        logger.error("Error gerring payment gateway info from payment service", e);

                    }

                }

                contentRow.createCell(GATEWAY).setCellValue(gateway != null ? gateway.getName() : payment.getGatewayId()+"");

                //contentRow.createCell(GATEWAY).setCellValue(payment.getGatewayId());

                String paymentMethod = getPaymentMethod(payment.getAttributes());

                contentRow.createCell(PAYMENT_METHOD).setCellValue(paymentMethod);

                contentRow.getCell(PAYMENT_METHOD).setCellStyle(styleWT);

                if(paymentMethod.length() > paymethodColWidth) {

                    newRowHeight = Math.max(newRowHeight, (paymentMethod.length() / paymethodColWidth + 1) * rowHeight);

                }

                contentRow.createCell(TXN_ID).setCellValue(payment.getMerchantTxnId());

                contentRow.createCell(AMOUNT).setCellValue(payment.getAmount());

                contentRow.getCell(AMOUNT).setCellStyle(styleAmount);

                contentRow.createCell(PAY_STATUS).setCellValue(payment.getStatus().name());

                String desc = payment.getDescription();

                contentRow.createCell(PAY_STATUS_DESC).setCellValue(desc);

                contentRow.getCell(PAY_STATUS_DESC).setCellStyle(styleWT);

                if(desc != null && desc.length() > statusDescWidth) {

                    newRowHeight = Math.max(newRowHeight, (desc.length() / statusDescWidth + 1) * rowHeight);

                }

                contentRow.createCell(TXN_STATUS).setCellValue(payment.getGatewayTxnStatus());

                contentRow.createCell(REF_CODE).setCellValue(payment.getReferenceCode());

                calendar.setTimeInMillis(payment.getInitTimestamp());

                contentRow.createCell(TXN_TIME).setCellValue(formatter.format(calendar.getTime()));

                txnId = tClient.getTransaction(payment.getMerchantTxnId()).getId();

                orders = tClient.getOrdersForTransaction(txnId, payment.getUserId());

                List<LineItem> lineItems;

                String address = "";

                if (orders == null || orders.isEmpty()) {

                    continue;

                }

                contentRow.createCell(CUST_ID).setCellValue(orders.get(0).getCustomer_id());

                contentRow.createCell(NAME).setCellValue(orders.get(0).getCustomer_name());

                contentRow.createCell(MOB_NO).setCellValue(orders.get(0).getCustomer_mobilenumber());

                address = orders.get(0).getCustomer_address1() + ", " + orders.get(0).getCustomer_address2();

                contentRow.createCell(ADDR).setCellValue(address);

                contentRow.getCell(ADDR).setCellStyle(styleWT);

                if(address.length() > addrColWidth) {

                    newRowHeight = Math.max(newRowHeight, (address.length() / addrColWidth + 1) * rowHeight);

                }

                contentRow.setHeightInPoints(newRowHeight);

                contentRow.createCell(PINCODE).setCellValue(orders.get(0).getCustomer_pincode());

                contentRow.createCell(CITY).setCellValue(orders.get(0).getCustomer_city());

                contentRow.createCell(STATE).setCellValue(orders.get(0).getCustomer_state());

                contentRow.createCell(EMAIL).setCellValue(orders.get(0).getCustomer_email());

                boolean firstOrder = true;

                for (Order o : orders) {

                    if(o.getStatus() == OrderStatus.SALES_RET_RESHIPPED || o.getStatus() == OrderStatus.DOA_RESHIPPED || o.getStatus() == OrderStatus.DOA_INVALID_RESHIPPED)

                        continue;

                    if(firstOrder) {

                        firstOrder = false;

                    } else {

                        paymentSerialNo++;

                        contentRow = paymentSheet.createRow(paymentSerialNo);

                    }

                    contentRow.createCell(ORDER_ID).setCellValue(o.getId());

                    contentRow.createCell(ORDER_STATUS).setCellValue(o.getStatus().name());

                    contentRow.createCell(ORDER_STATUS_DESC).setCellValue(o.getStatusDescription());

                    lineItems = tClient.getLineItemsForOrder(o.getId());

                    for (LineItem i : lineItems) {

                        /*

                         * Right now there can be only one line item in an

                         * order. So putting line item details in the same

                         * row as order details. Commenting below 2 lines

                         * for this.

                         */

                        // paymentSerialNo++;

                        // contentRow =

                        // paymentSheet.createRow(paymentSerialNo);

                        contentRow.createCell(ITEM_ID).setCellValue(i.getId());

                        contentRow.createCell(PROD_GRP).setCellValue(i.getProductGroup());

                        contentRow.createCell(BRAND).setCellValue(i.getBrand());

                        contentRow.createCell(MOD_NAME).setCellValue(i.getModel_name());

                        contentRow.createCell(MOD_NUM).setCellValue(i.getModel_number());

                        contentRow.createCell(QTY).setCellValue(i.getQuantity());

                    }

                }

            } catch (TransactionServiceException e) {

                logger.error("Error in transaction service while getting orders", e);

            } catch (TException e) {

                logger.error("Error getting info from transaction service", e);

            }

        }

        for (int i = 0; i <= QTY; i++) {

            if (i == PAYMENT_METHOD || i == PAY_STATUS_DESC || i == ADDR) // Address Column is of fixed size with wrap text style

                continue;

            paymentSheet.autoSizeColumn(i);

        }

        // Write the workbook to the output stream

        try {

            wb.write(baosXLS);

            baosXLS.close();

        } catch (IOException e) {

            logger.error("Error while streaming payment details report", e);

        }

        return baosXLS;

    }

    public String getPaymentMethod(List<Attribute> paymentAttributes) {

        String paymentMethod = null;

        if(paymentAttributes == null || paymentAttributes.isEmpty()) {

            return "N/A";

        }

        for(Attribute a : paymentAttributes) {

            if("payMethod".equals(a.getName())) {

                paymentMethod = Constants.PAYMENT_METHOD.get(a.getValue());

                break;

            }

        }

        return paymentMethod != null ? paymentMethod : "N/A";

    }

    public static void main(String[] args) {

        DateFormat df = new SimpleDateFormat("MM/dd/yyyy");

        Date startDate = null, endDate = null;

        try {

            startDate = df.parse("01/01/2011");

            endDate = df.parse("06/30/2011");

            Calendar cal = Calendar.getInstance();

            cal.setTime(endDate);

            cal.add(Calendar.DATE, 1);

            endDate.setTime(cal.getTimeInMillis());

        } catch (ParseException pe) {

            logger.error("Error parsing the supplied date", pe);

        }

        PaymentDetailsGenerator pdg = new PaymentDetailsGenerator();

        try {

            String userHome = System.getProperty("user.home");

            FileOutputStream f = new FileOutputStream(userHome + "/payment-details-report.xls");

            ByteArrayOutputStream baosXLS = pdg.generatePaymentDetailsReport(startDate, endDate, 1);

            baosXLS.writeTo(f);

            f.close();

        } catch (FileNotFoundException e) {

            logger.error("Error creating payment details report", e);

        } catch (IOException e) {

            logger.error("IO error while creating payment details report", e);

        }

        System.out.println("Successfully generated the payment details report");

    }

}