package com.example.spring.bank.web;

import java.io.IOException;
import java.math.BigDecimal;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;

import com.example.spring.bank.AccountManager;

/**
 * Servlet implementation class BankGateway
 */
public class BankGateway extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public BankGateway() {
        super();
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		getServletContext().getRequestDispatcher("/deposit.jsp").forward(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(getServletContext());
		AccountManager am = ctx.getBean("accountManager", AccountManager.class);
		
		int accountNumber = Integer.parseInt(request.getParameter("accountNumber"));
		BigDecimal amount = new BigDecimal(request.getParameter("amount"));
		
		// How to use a session scoped bean (Example only)
//		DepositForm form = (DepositForm) ctx.getBean("depositForm");
//		form.setAccountNumber(accountNumber);
//		form.setAmount(amount);
		// End of example
		
		
		am.deposit(accountNumber, amount);
		
		// We can dispatch to a success page if we prefer!
		getServletContext().getRequestDispatcher("/deposit.jsp").forward(request, response);
	}

}