package com.fs.until;

import cn.hutool.http.HttpException;
import cn.hutool.http.HttpRequest;
import cn.hutool.json.JSONUtil;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.fs.common.core.domain.AjaxResult;
import com.fs.common.utils.ParseUtils;
import com.fs.common.utils.StringUtils;
import com.fs.system.domain.SysConfig;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Component;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import java.util.Base64;

import static com.fs.common.core.domain.AjaxResult.CODE_TAG;
import static com.fs.common.core.domain.AjaxResult.DATA_TAG;

@Slf4j
@Component
public class PhoneUtil {

    /**
     * 2025-9-3 需求替换新 key
     */
    private static String OLD_KEY = "2c8d1a7f4e9b3c6ae6d5c4b3a291f8c9";

    private static String USE_KEY = "AESAabCdeREssREA";


    //外部刷新方法
    public static void refreshKeyExternal(SysConfig config) {
        String configValue = config.getConfigValue();
        if (null != configValue) {
            JSONObject jsonObject = JSON.parseObject(configValue);
            if (jsonObject.containsKey("useKey") && jsonObject.containsKey("oldKey")) {
                USE_KEY = jsonObject.getString("useKey");
                OLD_KEY = jsonObject.getString("oldKey");
            }
        }
    }

    /**
     * 加密
     */
    public static String encryptPhone(String text) {

        try {
            String encryptedText = null;
            String url = "http://42.194.147.226:8000/app/common/genEncryption";
            // 构建请求体 JSON
            JSONObject jsonBody = new JSONObject();
            jsonBody.put("content", text);

            String result = HttpRequest.post(url).body(jsonBody.toString()).execute().body();
            //解析返回
            AjaxResult ajaxResult = JSONUtil.toBean(result, AjaxResult.class);

            //取值返回参数
            Object codeValue = ajaxResult.get(CODE_TAG);
            Object dataValue = ajaxResult.get(DATA_TAG);

            //判断是否成功
            if ("200".equals(String.valueOf(codeValue))) {
                encryptedText = String.valueOf(dataValue);
            } else {
                log.error("请求失败，状态码: " + codeValue);
                return "";
            }
            return encryptedText;
        } catch (HttpException e) {
            throw new RuntimeException(e);
        }

    }


    /**
     * 解密
     */
    public static String decryptPhone(String encryptedText) {

        try {
            String text = null;
            String url = "http://42.194.147.226:8000/app/common/genDecryption";
            // 构建请求体 JSON
            JSONObject jsonBody = new JSONObject();
            jsonBody.put("content", encryptedText);

            String result = HttpRequest.post(url).body(jsonBody.toString()).execute().body();
            //解析返回
            AjaxResult ajaxResult = JSONUtil.toBean(result, AjaxResult.class);

            //取值返回参数
            Object codeValue = ajaxResult.get(CODE_TAG);
            Object dataValue = ajaxResult.get(DATA_TAG);

            //判断是否成功
            if ("200".equals(String.valueOf(codeValue))) {
                text = String.valueOf(dataValue);
            } else {
                log.error("请求失败，状态码: " + codeValue);
                return "";
            }
            return text;
        } catch (HttpException e) {
            throw new RuntimeException(e);
        }
    }


    /**
     * 用于查询 使用老的数据加密
     *
     * @param text
     * @return
     */
    public static String encryptPhoneOldKey(String text) {
        String encryptedText = null;
        try {
            SecretKeySpec secretKey = new SecretKeySpec(OLD_KEY.getBytes(), "AES");
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            // Encryption
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
            byte[] encryptedBytes = cipher.doFinal(text.getBytes());
            encryptedText = Base64.getEncoder().encodeToString(encryptedBytes);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return encryptedText;
    }

    //
    public static void main(String[] args) {

        String text = null;
        String url = "http://172.16.0.114:8000/app/common/genEncryption";
        // 构建请求体 JSON
        JSONObject jsonBody = new JSONObject();
        jsonBody.put("content", "17749925835");

        String result = HttpRequest.post(url)
                .body(jsonBody.toString())
                .execute()
                .body();
        AjaxResult ajaxResult = JSONUtil.toBean(result, AjaxResult.class);
        System.out.println("完整响应: " + ajaxResult);

        Object codeValue = ajaxResult.get(CODE_TAG);
        Object dataValue = ajaxResult.get(DATA_TAG);

        System.out.println("code原始值: '" + codeValue + "'");
        System.out.println("data原始值: '" + dataValue + "'");

        // 使用 String.valueOf 确保类型安全
        if ("200".equals(String.valueOf(codeValue))) {
            text = String.valueOf(dataValue);
            System.out.println("加密结果: " + text);
        } else {
            System.out.println("请求失败，状态码: " + codeValue);
        }
    }


    /**
     * 解密加*
     */
    public static String decryptPhoneMk(String encryptedText) {
        String text = null;
        try {
            text = decryptPhone(encryptedText);
            text = text.replaceAll("(\\d{3})\\d*(\\d{4})", "$1****$2");
        } catch (Exception e) {
            log.warn("decryptPhoneMk 解密失败 text: {}, msg: {}", encryptedText, e.getMessage(), e);
            text = encryptedText;
        }
        return text;
    }

    public static String decryptAutoPhoneMk(String encryptedText) {
        String text = null;
        if (encryptedText != null && encryptedText != "") {
            if (encryptedText.length() > 11) {
                try {
                    text = decryptPhone(encryptedText);
                    text = text.replaceAll("(\\d{3})\\d*(\\d{4})", "$1****$2");
                } catch (Exception e) {
                    log.warn("decryptAutoPhoneMk 解密失败 text: {}, msg: {}", encryptedText, e.getMessage(), e);
                    text = encryptedText;
                }
            } else {
                text = ParseUtils.parsePhone(encryptedText);
            }
        }

        return text;
    }

    /**
     * 手机号加密 *
     *
     * @param text 手机号
     * @return 加密后手机号
     */
    public static String hiddenPhone(String text) {
        if (StringUtils.isBlank(text)) {
            return text;
        }

        return "***********";
    }

    /**
     * 显示前3位
     *
     * @param text 手机号
     * @return 加密后手机号
     */
    public static String displayPre3Phone(String text) {
        if (StringUtils.isBlank(text)) {
            return text;
        }

        text = text.trim();
        if (text.length() > 11) {
            text = decryptPhone(text);
        }

        return text.replaceAll("(\\d{3})\\d*", "$1********");
    }


    /**
     * 判断文本中是否存在手机号
     *
     * @param text 原始文本
     * @return 是否存在手机号
     */
    private static boolean containsPhoneNumber(String text) {
        if (text == null || text.trim().isEmpty()) {
            return false;
        }

        // 手机号正则
        String phoneRegex = "1[3-9]\\d{9}";
        java.util.regex.Pattern pattern = java.util.regex.Pattern.compile(phoneRegex);
        java.util.regex.Matcher matcher = pattern.matcher(text);

        return matcher.find();
    }

    private static final String PUBLIC_KEY_STR = "ylrz112233";

    /**
     * XOR 加密（返回 Base64）（对于解析后的电话明文加密，适用于前端解密）
     *
     * @param data 明文电话
     * @return String 密文
     */
    public static String xorEncrypt(String data) {
        byte[] dataBytes = data.getBytes(java.nio.charset.StandardCharsets.UTF_8);
        byte[] keyBytes = PUBLIC_KEY_STR.getBytes(java.nio.charset.StandardCharsets.UTF_8);
        byte[] result = new byte[dataBytes.length];
        for (int i = 0; i < dataBytes.length; i++) {
            result[i] = (byte) (dataBytes[i] ^ keyBytes[i % keyBytes.length]);
        }
        return Base64.getEncoder().encodeToString(result);
    }


    /**
     * XOR 解密
     *
     * @param base64Str  Base64 编码的密文
     * @param privateKey 私钥字符串（如 "ylrz987654321"）
     * @return 解密后的明文字符串
     */
    public static String xorDecrypt(String base64Str, String privateKey) {
        // 1. Base64 解码为字节数组
        byte[] encryptedBytes = Base64.getDecoder().decode(base64Str);
        // 2. 私钥字符串转字节数组（UTF-8 编码）
        byte[] keyBytes = privateKey.getBytes(java.nio.charset.StandardCharsets.UTF_8);
        // 3. 逐字节异或
        byte[] resultBytes = new byte[encryptedBytes.length];
        for (int i = 0; i < encryptedBytes.length; i++) {
            resultBytes[i] = (byte) (encryptedBytes[i] ^ keyBytes[i % keyBytes.length]);
        }
        // 4. 将字节数组按 UTF-8 解码为字符串
        return new String(resultBytes, java.nio.charset.StandardCharsets.UTF_8);
    }
}