import JSEncrypt from 'jsencrypt/bin/jsencrypt.min'

// 密钥对生成 http://web.chacuo.net/netrsakeypair
const publicKey1 = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCsiWEvEwTJxDsLqfHJaxeXvLL200H7NiMdQ1GK+OGst3NZHX4fjYnyDkc6QCK0CgTJeNO1/UZ26Pv55C98gXH0uzitoT2XGfJY5WDISvpv9vdOBCd60urdsaW9mrst4YxUjZO5nljlWnImnpa+vmS5NHWGNZdsUvMWGEWLM/kijwIDAQAB";
const privateKey1 = "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";
const publicKey2 = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDR8l+B4jG6mEyMW8LYoNwMAUGnbZzDoKBSB1N4o19NscpyOA5m5Yyy2PDeja+iRNOwC7KTmKynd0Qzt8kwVnZHxA+oeKpNpepMS/+felan/QDgUD3u0Tix/sxuZ7GVB2h4X39wJTfgItNC7IK1qNQSZMkBfPhSQKQktkIlPU78BwIDAQAB";
const privateKey2 = "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";
// 加密
function encrypt(txt) {
	// console.log(txt.length)
  const encryptor = new JSEncrypt()
  encryptor.setPublicKey(publicKey2) // 设置公钥
  const res=encryptor.encrypt(txt)
  // var buf = hexToBytes(res);
  // console.log(buf.length,res.length);
  
  return res // 对数据进行加密
}

// 解密
function decrypt(txt) {
  const encryptor = new JSEncrypt()
  encryptor.setPrivateKey(privateKey2) // 设置私钥
  return encryptor.decrypt(txt) // 对数据进行解密
}


//分段加解密---------------------------------
function hexToBytes(hex) {//字符转字节
	for (var bytes = [], c = 0; c < hex.length; c += 2)
		bytes.push(parseInt(hex.substr(c, 2), 16));
	return bytes;
}
function bytesToHex(bytes) {//字节转字符
	for (var hex = [], i = 0; i < bytes.length; i++) {
		hex.push((bytes[i] >>> 4).toString(16));
		hex.push((bytes[i] & 0xF).toString(16));
	}
	return hex.join("");
}

//方法2
export function encryptLong2(string){
    // console.log(string)
    // var lt = "";
    var ct = "";
    //RSA每次加密117bytes，需要辅助方法判断字符串截取位置
    //1.获取字符串截取点
    var bytes = new Array();
    bytes.push(0);
    var byteNo = 0;
    var len, c;
    len = string.length;
    var temp = 0;
    for (var i = 0; i < len; i++) {
        c = string.charCodeAt(i);
        if (c >= 0x010000 && c <= 0x10FFFF) {
            byteNo += 4;
        } else if (c >= 0x000800 && c <= 0x00FFFF) {
            byteNo += 3;
        } else if (c >= 0x000080 && c <= 0x0007FF) {
            byteNo += 2;
        } else {
            byteNo += 1;
        }
        if ((byteNo % 117) >= 114 || (byteNo % 117) == 0) {
            if (byteNo - temp >= 114) {
                bytes.push(i);
                temp = byteNo;
            }
        }
    }
	//console.log(bytes);
    //2.截取字符串并分段加密
    if (bytes.length > 1) {
        for (var i = 0; i < bytes.length - 1; i++) {
            var str;
            if (i == 0) {
                str = string.substring(0, bytes[i + 1] + 1);
            } else {
                str = string.substring(bytes[i] + 1, bytes[i + 1] + 1);
            }
			// console.log(str)
            var t1 = encrypt(str);
            ct += t1;
			//console.log(ct)
        }
        ;
        if (bytes[bytes.length - 1] != string.length - 1) {
            var lastStr = string.substring(bytes[bytes.length - 1] + 1);
			// console.log(lastStr)
			var t1 = encrypt(lastStr);
            ct += t1;
			//console.log(ct)
        }
    	// console.log(ct)
        return ct;
    }
    var t = encrypt(string);
    return t;
};

export function decryptLong2(string) {
	if(!string){
		return '';
	}
	// console.log(string);
	//return decrypt(string);
    // var maxLength = ((k.n.bitLength()+7)>>3);
    var MAX_DECRYPT_BLOCK = 172;
    var ct = "";
    var t1;
    var bufTmp;
    var hexTmp;
    
    var buf = string;//hexToBytes(string);
	// console.log(buf.length);
	// console.log(buf);
    var inputLen = buf.length;
    //开始长度
    var offSet = 0;
    //结束长度
    var endOffSet = MAX_DECRYPT_BLOCK;
    
    //分段解密
    while (inputLen - offSet > 0) {
        if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
            bufTmp = buf.substr(offSet, MAX_DECRYPT_BLOCK);
            //hexTmp = bytesToHex(bufTmp);
            t1 = decrypt(bufTmp);
            if(t1){
            	ct += t1;
            }
            else{
            	return null;
            }
            
        } else {
            bufTmp = buf.slice(offSet, inputLen);
            //hexTmp = bytesToHex(bufTmp);
			//console.log(hexTmp);
            t1 = decrypt(bufTmp);
			if(t1){
				ct += t1;
			}
			else{
				return null;
			}
            
        }
        offSet += MAX_DECRYPT_BLOCK;
        endOffSet += MAX_DECRYPT_BLOCK;
    }
    //console.log(ct);
    return ct;
};