package com.zcxk.util;

import com.aliyuncs.CommonRequest;
import com.aliyuncs.CommonResponse;
import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;
import com.aliyuncs.http.MethodType;
import com.aliyuncs.profile.DefaultProfile;
import lombok.extern.slf4j.Slf4j;

import java.awt.*;
import java.awt.image.BufferedImage;
import java.util.Random;
@Slf4j
public class VerifyCodeUtil {
    /**
     * 验证码类型为仅数字,即0~9
     */
    public static final int TYPE_NUM_ONLY = 0;

    /**
     * 验证码类型为仅字母,即大小写字母混合
     */
    public static final int TYPE_LETTER_ONLY = 1;

    /**
     * 验证码类型为数字和大小写字母混合
     */
    public static final int TYPE_ALL_MIXED = 2;

    /**
     * 验证码类型为数字和大写字母混合
     */
    public static final int TYPE_NUM_UPPER = 3;

    /**
     * 验证码类型为数字和小写字母混合
     */
    public static final int TYPE_NUM_LOWER = 4;

    /**
     * 验证码类型为仅大写字母
     */
    public static final int TYPE_UPPER_ONLY = 5;

    /**
     * 验证码类型为仅小写字母
     */
    public static final int TYPE_LOWER_ONLY = 6;
    
  /*  public static final String FONT_TYPE_DEFAULT="Default";
    
    public static final String FONT_TYPE_TIMES_NEW_ROMAN="Times New Roman";*/

    private VerifyCodeUtil() {
    }

    /**
     * 生成随机颜色
     */
    private static Color generateRandomColor() {
        Random random = new Random();
        return new Color(random.nextInt(255), random.nextInt(255), random.nextInt(255));
    }


    /**
     * 生成图片验证码
     *
     * @param type           验证码类型,参见本类的静态属性
     * @param length         验证码字符长度,要求大于0的整数
     * @param excludeString  需排除的特殊字符
     * @param width          图片宽度(注意此宽度若过小,容易造成验证码文本显示不全,如4个字符的文本可使用85到90的宽度)
     * @param height         图片高度
     * @param interLine      图片中干扰线的条数
     * @param randomLocation 每个字符的高低位置是否随机
     * @param backColor      图片颜色,若为null则表示采用随机颜色
     * @param foreColor      字体颜色,若为null则表示采用随机颜色
     * @param lineColor      干扰线颜色,若为null则表示采用随机颜色
     * @param fontType       字体类型
     * @return 图片缓存对象
     */
    public static BufferedImage generateImageCode(int type, int length, String excludeString, int width, int height, int interLine, boolean randomLocation, Color backColor, Color foreColor, Color lineColor, String fontType) {
        String textCode = generateTextCode(type, length, excludeString);
        return generateImageCode(textCode, width, height, interLine, randomLocation, backColor, foreColor, lineColor, fontType);
    }


    /**
     * 生成验证码字符串
     *
     * @param type          验证码类型,参见本类的静态属性
     * @param length        验证码长度,要求大于0的整数
     * @param excludeString 需排除的特殊字符（无需排除则为null）
     * @return 验证码字符串
     */
    public static String generateTextCode(int type, int length, String excludeString) {
        if (length <= 0) {
            return "";
        }
        StringBuffer verifyCode = new StringBuffer();
        int i = 0;
        Random random = new Random();
        switch (type) {
            case TYPE_NUM_ONLY:
                while (i < length) {
                    int t = random.nextInt(10);
                    //排除特殊字符
                    if (null == excludeString || excludeString.indexOf(t + "") < 0) {
                        verifyCode.append(t);
                        i++;
                    }
                }
                break;
            case TYPE_LETTER_ONLY:
                while (i < length) {
                    int t = random.nextInt(123);
                    if ((t >= 97 || (t >= 65 && t <= 90)) && (null == excludeString || excludeString.indexOf((char) t) < 0)) {
                        verifyCode.append((char) t);
                        i++;
                    }
                }
                break;
            case TYPE_ALL_MIXED:
                while (i < length) {
                    int t = random.nextInt(123);
                    if ((t >= 97 || (t >= 65 && t <= 90) || (t >= 48 && t <= 57)) && (null == excludeString || excludeString.indexOf((char) t) < 0)) {
                        verifyCode.append((char) t);
                        i++;
                    }
                }
                break;
            case TYPE_NUM_UPPER:
                while (i < length) {
                    int t = random.nextInt(91);
                    if ((t >= 65 || (t >= 48 && t <= 57)) && (null == excludeString || excludeString.indexOf((char) t) < 0)) {
                        verifyCode.append((char) t);
                        i++;
                    }
                }
                break;
            case TYPE_NUM_LOWER:
                while (i < length) {
                    int t = random.nextInt(123);
                    if ((t >= 97 || (t >= 48 && t <= 57)) && (null == excludeString || excludeString.indexOf((char) t) < 0)) {
                        verifyCode.append((char) t);
                        i++;
                    }
                }
                break;
            case TYPE_UPPER_ONLY:
                while (i < length) {
                    int t = random.nextInt(91);
                    if ((t >= 65) && (null == excludeString || excludeString.indexOf((char) t) < 0)) {
                        verifyCode.append((char) t);
                        i++;
                    }
                }
                break;
            case TYPE_LOWER_ONLY:
                while (i < length) {
                    int t = random.nextInt(123);
                    if ((t >= 97) && (null == excludeString || excludeString.indexOf((char) t) < 0)) {
                        verifyCode.append((char) t);
                        i++;
                    }
                }
                break;
            default:
                break;
        }
        return verifyCode.toString();
    }

    /**
     * 已有验证码,生成验证码图片
     *
     * @param textCode       文本验证码
     * @param width          图片宽度(注意此宽度若过小,容易造成验证码文本显示不全,如4个字符的文本可使用85到90的宽度)
     * @param height         图片高度
     * @param interLine      图片中干扰线的条数
     * @param randomLocation 每个字符的高低位置是否随机
     * @param backColor      图片颜色,若为null则表示采用随机颜色
     * @param foreColor      字体颜色,若为null则表示采用随机颜色
     * @param lineColor      干扰线颜色,若为null则表示采用随机颜色
     * @param fontType       字体类型
     * @return 图片缓存对象
     */
    public static BufferedImage generateImageCode(String textCode, int width, int height, int interLine, boolean randomLocation, Color backColor, Color foreColor, Color lineColor, String fontType) {
        //创建内存图像
        BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        //获取图形上下文
        Graphics graphics = bufferedImage.getGraphics();
        //画背景图
        graphics.setColor(null == backColor ? generateRandomColor() : backColor);
        graphics.fillRect(0, 0, width, height);
        //画干扰线
        Random random = new Random();
        if (interLine > 0) {
            int x = 0, y = 0, x1 = width, y1 = 0;
            for (int i = 0; i < interLine; i++) {
                graphics.setColor(null == lineColor ? generateRandomColor() : lineColor);
                y = random.nextInt(height);
                y1 = random.nextInt(height);
                graphics.drawLine(x, y, x1, y1);
            }
        }
        //字体大小为图片高度的80%
        int fsize = (int) (height * 0.8);
        int fx = height - fsize;
        int fy = fsize;
        //设定字体  
        graphics.setFont(new Font("".equals(fontType) ? "Default" : fontType, Font.PLAIN, fsize));
        //写验证码字符
        for (int i = 0; i < textCode.length(); i++) {
            fy = randomLocation ? (int) ((Math.random() * 0.3 + 0.6) * height) : fy;
            graphics.setColor(null == foreColor ? generateRandomColor() : foreColor);
            //将验证码字符显示到图象中
            graphics.drawString(textCode.charAt(i) + "", fx, fy);
            fx += fsize * 0.9;
        }
        graphics.dispose();
        return bufferedImage;
    }

    /**
     * 发送短信验证码
     * @param phoneNumber
     * @param code
     */
    public static void sendVerificationCodeSms(String phoneNumber, String code) {
        DefaultProfile profile = DefaultProfile.getProfile("cn-hangzhou", "LTAI9bq4vr6ClPGW", "hKYWEneQH2hQOs2DnG4PsAUqk4Thps");
        IAcsClient client = new DefaultAcsClient(profile);

        CommonRequest request = new CommonRequest();
        request.setMethod(MethodType.POST);
        request.setDomain("dysmsapi.aliyuncs.com");
        request.setVersion("2017-05-25");
        request.setAction("SendSms");
        request.putQueryParameter("RegionId", "cn-hangzhou");
        request.putQueryParameter("PhoneNumbers", phoneNumber);
        request.putQueryParameter("SignName", "中城信科");
        request.putQueryParameter("TemplateCode", "SMS_174812471");
        request.putQueryParameter("TemplateParam", "{\"code\":\""+code+"\"}");
        try {
            CommonResponse response = client.getCommonResponse(request);
            log.info("sendSms redutl:" + response.getData());
        } catch (ServerException e) {
            log.error("短信发送失败",e);
            e.printStackTrace();
        } catch (ClientException e) {
            e.printStackTrace();
        }

    }
}