package cn.com.blogonline;

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

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpSession;

public class AdminLinksAction extends HttpServlet {
    
	public void init(ServletConfig config) throws ServletException {
    }
    
    /*
     *  處理<GET> 請求方法.
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
    	//設置接收信息的字符集
    	request.setCharacterEncoding("UTF-8");
    	//接收瀏覽器端提交的信息
		String action = request.getParameter("action");		
		String name = request.getParameter("name");
		String url = request.getParameter("url");
		String id = request.getParameter("id");
		
        //利用hibernate查詢熱點博客和最新文章
		DbOperate	db=new DbOperate();
	    HttpSession session = request.getSession(true);
	    
		//設置輸出信息的格式及字符集        
        response.setContentType("text/xml; charset=UTF-8");
        response.setHeader("Cache-Control", "no-cache");
        //創建輸出流對象
        PrintWriter out = response.getWriter();
        //依據驗證結果輸出不同的數據信息
        out.println("<response>");		
		Blog blog = (Blog)session.getAttribute(Constants.LOGIN_USER_KEY);

        if ("load".equals(action)){
    		List linkList=db.getBlogLinks(blog.getId());
        	for (int i=0;i<linkList.size();i++){
        		Links link = (Links)linkList.get(i);
    	        out.println("<link>");		
    			out.println("<id>" + link.getId() + "</id>");
    			out.println("<name>" + link.getName() + "</name>");
    			out.println("<url>" + link.getUrl() + "</url>");
    	        out.println("</link>");		
     	    }
        }
        else if ("add".equals(action)){
        	Links link =new Links();
        	link.setName(name);
        	link.setUrl(url);
        	link.setBlogid(blog.getId());
    		db.save(link);
    		out.println("<id>" + link.getId() + "</id>");
    		out.println("<name>" + link.getName() + "</name>");
			out.println("<url>" + link.getUrl() + "</url>");
        }
        else if ("delete".equals(action)){
        	Links link = db.getLink(Integer.parseInt(id));
    		db.delete(link);
    		out.println("<id>" + link.getId() + "</id>");
        }
		out.println("</response>");
		out.close();
    }

	protected void doPost(HttpServletRequest arg0, HttpServletResponse arg1) throws ServletException, IOException {
		// TODO 自動生成方法存根
		this.doGet(arg0,arg1);
	}
    
    
}