Subversion Repositories SmartDukaan

package in.shop2020.support.controllers;

import in.shop2020.support.services.PaymentDetailsGenerator;

import in.shop2020.support.utils.ReportsUtils;

import java.io.ByteArrayOutputStream;

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 javax.servlet.ServletContext;

import javax.servlet.ServletOutputStream;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import org.apache.struts2.interceptor.ServletRequestAware;

import org.apache.struts2.interceptor.ServletResponseAware;

import org.apache.struts2.util.ServletContextAware;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

public class PaymentReconciliationController implements ServletRequestAware, ServletResponseAware, ServletContextAware {

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

    private HttpServletRequest request;

    private HttpSession session;

    private HttpServletResponse response;

    private ServletContext context;

    private String errorMsg = "";

    private final String authsuccess = "authsuccess";

    public PaymentReconciliationController() {

    }

    public String index() {

        if(!ReportsUtils.canAccessReport((Long)session.getAttribute(ReportsUtils.ROLE), request.getServletPath())) {

            return "authfail";

        }

        return authsuccess;

    }

    // Handles the POST request (Form Submission)

    public String create() {

        // Formatting Form input parameters

        String startDateStr = request.getParameter("startDate");

        String endDateStr = request.getParameter("endDate");

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

        Date startDate = null, endDate = null;

        try {

            startDate = df.parse(startDateStr);

            endDate = df.parse(endDateStr);

            Calendar cal = Calendar.getInstance();

            cal.setTime(endDate);

            cal.add(Calendar.DATE, 1);

            endDate.setTime(cal.getTimeInMillis());

        } catch (ParseException pe) {

            errorMsg = "Please enter start and end dates in format dd/MM/yyyy";

            return authsuccess;

        } catch (NumberFormatException nfe) {

            errorMsg = "Please select payment status";

            return authsuccess;

        }

        PaymentDetailsGenerator paymentDetailGenerator = new PaymentDetailsGenerator();

        ByteArrayOutputStream baos = paymentDetailGenerator.generatePaymentReconciliationReport(startDate, endDate);

        if (baos == null) {

            errorMsg = "No payments were captured in the given date range";

            return authsuccess;

        } else {

            errorMsg = "Generating report...";

        }

        // Preparing XLS file for output

		DateFormat dateFormatForFile = new SimpleDateFormat("dd.MM.yyyy");

        response.setContentType("application/vnd.ms-excel");

        response.setHeader("Content-disposition", "inline; filename=payments-reconciliation-" + dateFormatForFile.format(startDate) + "-" + dateFormatForFile.format(endDate) + ".xls");

        ServletOutputStream sos;

        try {

            sos = response.getOutputStream();

            baos.writeTo(sos);

            sos.flush();

            errorMsg = "Report generated";

        } catch (IOException e) {

            errorMsg = "Failed to write to response.";

            logger.error("Unable to stream the payment details report", e);

        }

        return authsuccess;

    }

    public String getErrorMsg() {

        return errorMsg;

    }

    @Override

    public void setServletRequest(HttpServletRequest req) {

        this.request = req;

        this.session = req.getSession();        

    }

    @Override

    public void setServletResponse(HttpServletResponse res) {

        this.response = res;

    }

    @Override

    public void setServletContext(ServletContext context) {

        this.context = context;

    }

    public String getServletContextPath() {

        return context.getContextPath();

    }

}