package com.xwad.os.utils;

import android.util.Log;

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.HashMap;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;

public class JxwUtils {
    private static final String TAG = "JxwUtils";

    static {
        System.loadLibrary("xuewang"); // 加载 libjniutils.so
    }

    // 声明为Native方法
    public static native String getAppId();

    public static native String getAppSecret();

    public static String getSignature(Map<String, String> paramMap) {
        long timeStamp = System.currentTimeMillis();
        //用于获取signature
        SortedMap<String, String> items = new TreeMap<>();
        items.put("nonce", "X6SH3YeRTs");
        items.put("appId", JxwUtils.getAppId());
        items.put("appsecret", JxwUtils.getAppSecret());
        items.put("timestamp", String.valueOf(timeStamp));
//        items.putAll(paramMap);

//        items.put("其它参数", "其它参数的值");
        String signature = signature(items);
        Log.e(TAG, "userScore: " + signature);


//        //请求参数设置
//        Map<String, String> paramMap = new HashMap<>();
//        paramMap.put("nonce", "X6SH3YeRTs");
//        paramMap.put("appId", JxwUtils.getAppId());
//        paramMap.put("signature", signature);
//        paramMap.put("timestamp", String.valueOf(timeStamp));
////        paramMap.put("其它参数", "其它参数的值");

        return signature;
    }

    public static String signature(SortedMap<String, String> items) {
        StringBuilder forSign = new StringBuilder();

        for (String key : items.keySet()) {
            forSign.append(key).append("=").append(items.get(key)).append("&");
        }

        forSign.setLength(forSign.length() - 1);

        return encryptSHA1(forSign.toString());
    }

    public static String encryptSHA1(String content) {
        try {
            MessageDigest digest = MessageDigest.getInstance("SHA-1");
            digest.update(content.getBytes(StandardCharsets.UTF_8));
            byte[] messageDigest = digest.digest();
            StringBuilder hexString = new StringBuilder();

            for (byte b : messageDigest) {
                String shaHex = Integer.toHexString(b & 0xFF);

                if (shaHex.length() < 2) {
                    hexString.append(0);
                }

                hexString.append(shaHex);
            }

            return hexString.toString();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return null;
    }

}