#pragma once

#include <string>
#include <vector>
#include <cstdint>

// 9.5.2_live
#define ACCESS_KEY "BGz7nwlRX8QP__fzvqrgpNRVqrlEyuY54vuGVAqDO_g="
#define KEY_ID "9.5.2_live"

/*
    hardcoded variables (they have been the same since like 2017)
*/
#define CDN_KEY_BASE64 "lEQWeCt51ET+MIuxdTs7Ig/gzVZP2vdkVZA1BDfz+L0="
#define CDN_UUID "6EF35759-454D-4EBC-8041-9A94CB99FD5D"

class DBDCrypt
{
    public:
        enum PayloadType
        {
            NONE = 0,
            TYPE_1, // compressed
            TYPE_2, // CDN
            TYPE_3  // dyn / accesskey
        };

        static std::string decrypt(const std::string& data, const std::string& accessKey,
                                   PayloadType* outType = nullptr);

        static std::string encrypt(const std::string& data, const std::string& accessKey, PayloadType type,
                                   std::string keyId);

    private:
        static std::string decType1(const std::string& data, const std::string& key, PayloadType* outType);
        static std::string decType2(const std::string& data, const std::string& key, PayloadType* outType);
        static std::string decType3(const std::string& data, const std::string& key, PayloadType* outType);

        static std::string aesECBDecrypt(const std::vector<uint8_t>& cipherText, const std::vector<uint8_t>& key);
        static std::string aesECBEncrypt(const std::vector<uint8_t>& plainText, const std::vector<uint8_t>& key);

        static std::vector<uint8_t> b64Dec(const std::string& input);
        static std::string b64Enc(const std::vector<uint8_t>& input);

        static std::string zlibDecompress(const std::vector<uint8_t>& compressed);
        static std::vector<uint8_t> zLibCompress(const std::string& data);

        static std::vector<uint8_t> transformCDNKey(const std::string& b64CDNKey);
        static std::string shiftKeyID(const std::string& id, int shift);
        static std::string utf16ToUtf8(const std::string& utf16);
        static std::string utf8ToUtf16(const std::string& utf8);
};