package com.pure.web.spring.manager;

import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.validation.BindException;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.SimpleFormController;

import com.pure.domain.Admin;
import com.pure.domain.logic.AdminFacade;
import com.pure.util.PureUtil;
import com.pure.web.spring.AdminSession;
import com.pure.web.spring.manager.member.MemberValidator;

public class AdminLoginController extends SimpleFormController {
	protected final Log logger = LogFactory.getLog(getClass());

	private AdminFacade adminFacade;

	public AdminFacade getAdminFacade() {
		return adminFacade;
	}

	public void setAdminFacade(AdminFacade adminFacade) {
		this.adminFacade = adminFacade;
	}

	/**
	 * 初始化表單數據
	 */
	protected Object formBackingObject(HttpServletRequest request)
			throws Exception {
		Admin admin = new Admin();
		return admin;
	}

	/**
	 * 處理表單提交事件
	 */
	protected ModelAndView onSubmit(HttpServletRequest request,
			HttpServletResponse response, Object command, BindException errors)
			throws Exception {
		HttpSession session = request.getSession();
		Admin admin = (Admin) command;
		/**
		 * 此參數從login.jsp頁面表單hidden對象傳入，保存為用戶登陸前所請求的地址。
		 */
		String forwardAction = request.getParameter("forwardAction");
		
		/**
		 * 登陸必填項未填寫或失敗時仍需將請求地址保存，以便登陸成功后跳轉。
		 * </P>
		 * 由于在表單hidden中使用了<code><c:url value="${signonForwardAction}"/></code>，所以下面需要處理去掉上下文環境。
		 */
		Map model = new HashMap();
		if(null!=forwardAction)
			model.put("signonForwardAction",forwardAction.replace(request.getContextPath(),""));
		
		if ("".equals(admin.getName())) {
			errors.rejectValue("name", "LOGIN FAIL", AdminValidator.adornMsg("對不起！用戶名是必須的! "));
			return showForm(request, response, errors,model);
		}

		if ("".equals(admin.getPassword())) {
			errors.rejectValue("password", "LOGIN FAIL", AdminValidator.adornMsg("對不起！登錄密碼是必須的! "));
			return showForm(request, response, errors,model);
		}

		Admin loginAdmin = getAdminFacade().login(admin);
		if (null != loginAdmin) {
			session.setAttribute("adminSession",new AdminSession(loginAdmin));
			loginAdmin.setLoginip(request.getRemoteHost());
			loginAdmin.setLogintime(PureUtil.getDateFormatStr("yyyy-MM-dd HH:mm:ss"));
			Integer count = loginAdmin.getLogincount();
			// TODO Integer相加？
			if (count == null) {
				loginAdmin.setLogincount(new Integer(1));
			} else {
				loginAdmin.setLogincount(new Integer(Integer.parseInt(String.valueOf(count)) + 1));
			}
			getAdminFacade().update(loginAdmin);
		} else {
			errors.reject("LOGIN FAIL", MemberValidator.adornMsg("對不起！登陸失敗!請檢查你的用戶名及密碼! "));
			return showForm(request, response, errors,model);
		}
		
		if (forwardAction != null) {
			response.sendRedirect(forwardAction);
			return null;
		} else {
			return new ModelAndView(getSuccessView());
		}
	}
}