package com.stylefeng.guns.modular.system.controller;

import com.google.code.kaptcha.Constants;
import com.google.code.kaptcha.Producer;
import com.google.code.kaptcha.impl.DefaultKaptcha;
import com.google.code.kaptcha.util.Config;
import com.google.code.kaptcha.util.Configurable;
import com.stylefeng.guns.config.properties.GunsProperties;
import com.stylefeng.guns.core.util.FileUtil;
import com.stylefeng.guns.modular.system.util.RedisUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.imageio.ImageIO;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Properties;

/**
 * 验证码生成
 *
 * @author fengshuonan
 * @date 2017-05-05 23:10
 */
@Controller
@RequestMapping("/base/kaptcha")
public class KaptchaController {

    @Autowired
    private GunsProperties gunsProperties;

    @Autowired
    private Producer producer;


    @Autowired
    private RedisUtil redisUtil;

    /**
     * 生成验证码
     */
    @RequestMapping("")
    public void index(HttpServletRequest request, HttpServletResponse response,String phone) {
        String substring = phone.substring(0, 1);
        if("0".equals(substring)){
            phone = "233" + phone.substring(1);
        }
        if(phone.indexOf("233") < 0){
            phone = "233" + phone;
        }

        HttpSession session = request.getSession();

        response.setDateHeader("Expires", 0);

        // Set standard HTTP/1.1 no-cache headers.
        response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");

        // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
        response.addHeader("Cache-Control", "post-check=0, pre-check=0");

        // Set standard HTTP/1.0 no-cache header.
        response.setHeader("Pragma", "no-cache");

        // return a jpeg
        response.setContentType("image/jpeg");

        // create the text for the image
        String capText = producer.createText();

        // store the text in the session
        session.setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
        redisUtil.setStrValue(phone+"_Code",capText);

        // create the image with the text
        Properties properties = new Properties();
        // 设置边框
        properties.setProperty("kaptcha.border", "no");
        // 设置颜色
        properties.setProperty("kaptcha.border.color", "105,179,90");
        // 设置字体颜色
        properties.setProperty("kaptcha.textproducer.font.color", "blue");
        // 设置宽度
        properties.setProperty("kaptcha.image.width", "125");
        // 高度
        properties.setProperty("kaptcha.image.height", "42");
        // 设置session.key
        properties.setProperty("kaptcha.session.key", "code");
        // 设置文本长度
        properties.setProperty("kaptcha.textproducer.char.length", "4");
        // 设置字体
        properties.setProperty("kaptcha.textproducer.font.names", "宋体,楷体,微软雅黑");
        //字体大小
        properties.setProperty("kaptcha.textproducer.font.size", "35");

        Config config = new Config(properties);
        DefaultKaptcha defaultKaptcha = new DefaultKaptcha();
        defaultKaptcha.setConfig(config);
        BufferedImage bi = defaultKaptcha.createImage(capText);
        ServletOutputStream out = null;
        try {
            out = response.getOutputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }

        // write the data out
        try {
            ImageIO.write(bi, "jpg", out);
        } catch (IOException e) {
            e.printStackTrace();
        }
        try {
            try {
                out.flush();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } finally {
            try {
                out.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    /**
     * 返回图片
     *
     * @author stylefeng
     * @Date 2017/5/24 23:00
     */
    @RequestMapping("/{pictureId}")
    public void renderPicture(@PathVariable("pictureId") String pictureId, HttpServletResponse response) {
        String path = gunsProperties.getFileUploadPath() + pictureId;
        try {
            byte[] bytes = FileUtil.toByteArray(path);
            response.getOutputStream().write(bytes);
        } catch (Exception e) {
            //如果找不到图片就返回一个默认图片
            try {
                response.sendRedirect("/static/img/girl.gif");
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
    }
}