package com.fdkankan.ucenter.common;

import com.fdkankan.common.util.DateEditor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.propertyeditors.StringTrimmerEditor;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.domain.Sort.Direction;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.Date;

public class BaseController {

    @Autowired
    protected HttpServletRequest request;

    @Autowired
    protected HttpServletResponse response;

    @InitBinder
    protected void initBinder(WebDataBinder webDataBinder) {
        webDataBinder.registerCustomEditor(String.class, new StringTrimmerEditor(true));
        webDataBinder.registerCustomEditor(Date.class, new DateEditor(true));
    }

    /**
     * 带参重定向
     *
     * @param path
     * @return
     */
    protected String redirect(String path) {
        return "redirect:" + path;
    }

    /**
     * 不带参重定向
     *
     * @param response
     * @param path
     * @return
     */
    protected String redirect(HttpServletResponse response, String path) {
        try {
            response.sendRedirect(path);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }



    public static void output(HttpServletResponse resp, File file) {
        OutputStream os = null;
        BufferedInputStream bis = null;
        byte[] buff = new byte[1024];
        try {
            os = resp.getOutputStream();
            bis = new BufferedInputStream(new FileInputStream(file));
            int i = 0;
            while ((i = bis.read(buff)) != -1) {
                os.write(buff, 0, i);
                os.flush();
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                bis.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    protected String getToken(){
        return request.getHeader("token");
    }

}