Subversion Repositories SmartDukaan

/**

 * 

 */

package in.shop2020.inventory.controllers;

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

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

import in.shop2020.thrift.clients.TransactionClient;

import java.io.BufferedInputStream;

import java.io.BufferedWriter;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileWriter;

import java.io.InputStream;

import java.text.SimpleDateFormat;

import java.util.Calendar;

import java.util.Date;

import java.util.List;

import javax.servlet.ServletOutputStream;

import org.apache.commons.lang.StringUtils;

/**

 * @author mandeep

 * 

 */

public class SaleReportController extends BaseController {

    private String startDate;

    private String endDate;

    private SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");

    public Date getNextDay(Date date) {

        Calendar calendar = Calendar.getInstance();

        calendar.setTime(date);

        calendar.add(Calendar.DAY_OF_MONTH, 1);

        return calendar.getTime();

    }

    public String create() {

        try {

            Client transactionClient = new TransactionClient().getClient();

            List<Order> orders = transactionClient.getBilledOrdersForVendor(0,

                    sdf.parse(startDate).getTime(), getNextDay(sdf.parse(endDate))

                            .getTime());

            byte[] buffer = null;

            File file = createFile(orders);

            buffer = new byte[(int) file.length()];

            InputStream input = null;

            try {

                int totalBytesRead = 0;

                input = new BufferedInputStream(new FileInputStream(file));

                while (totalBytesRead < buffer.length) {

                    int bytesRemaining = buffer.length - totalBytesRead;

                    // input.read() returns -1, 0, or more :

                    int bytesRead = input.read(buffer, totalBytesRead,

                            bytesRemaining);

                    if (bytesRead > 0) {

                        totalBytesRead = totalBytesRead + bytesRead;

                    }

                }

                /*

                 * the above style is a bit tricky: it places bytes into the

                 * 'buffer' array; 'buffer' is an output parameter; the while

                 * loop usually has a single iteration only.

                 */

            } finally {

                input.close();

            }

            response.setHeader("Content-disposition", "inline; filename="

                    + file.getName());

            ServletOutputStream sos = response.getOutputStream();

            sos.write(buffer);

            sos.flush();

        } catch (Exception e) {

        }

        return EDIT_NEW;

    }

    /**

     * @param orders

     * @return

     */

    private File createFile(List<Order> orders) {

        try {

            File file = new File("Sale-" + startDate + "-to-" + endDate

                    + ".xls");

            BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(

                    file));

            bufferedWriter.write(StringUtils.join(new String[] { "Order Id",

                    "Customer Name", "Customer City", "Invoice Number",

                    "Billing Date", "Unit Price", "Quantity", "Net Amount",

                    "VAT", "Total Amount", "Brand", "Model Number", "Status" },

                    '\t'));

            for (Order order : orders) {

                if (order.getWarehouse_id() != 7) {

                    continue;

                }

                bufferedWriter.newLine();

                in.shop2020.model.v1.order.LineItem lineitem = order.getLineitems().get(0);

                double vatFactor = 5;

                if (lineitem.getUnit_price() >= 10000) {

                    vatFactor = 12.5;

                }

                bufferedWriter.write(StringUtils.join(

                        new String[] {

                                String.valueOf(order.getId()),

                                order.getCustomer_name(),

                                order.getCustomer_city(),

                                order.getInvoice_number(),

                                sdf.format(new Date(order

                                        .getBilling_timestamp())),

                                String.valueOf(lineitem.getUnit_price()),

                                String.valueOf(lineitem.getQuantity()),

                                String.valueOf(order.getTotal_amount() * 100

                                        / (100 + vatFactor)),

                                String.valueOf(order.getTotal_amount()

                                        * vatFactor / (100 + vatFactor)),

                                String.valueOf(order.getTotal_amount()),

                                lineitem.getBrand(),

                                lineitem.getModel_number(),

                                order.getStatusDescription() }, '\t'));

            }

            bufferedWriter.close();

            return file;

        } catch (Exception e) {

            return null;

        }

    }

    public String getStartDate() {

        return startDate;

    }

    public void setStartDate(String startDate) {

        this.startDate = startDate;

    }

    public String getEndDate() {

        return endDate;

    }

    public void setEndDate(String endDate) {

        this.endDate = endDate;

    }

}