#include <chrono>
#include <string>

class Token {
  public:
    Token(const std::string &iTokenFilePath, const std::string &iUsername, const std::string &iPassword);
    std::string toString() const;

  private:
    const std::string mFilePath; //!< Path to the token file
    const std::string mUsername; //!< Username for Battle.net API
    const std::string mPassword; //!< Password for Battle.net API
    std::string mToken;          //!< Token value

    /**
     * @return A token that a user can use to perform API requests.
     * A new token might be computed if the current token lifetime expired.
     */
    std::string getValidToken();
    const bool hasTokenExpired() const;
    std::string writeNewTokenToLocalFile() const;
    std::string getTokenFromLocalFile() const;
    std::string getTokenWithApi() const;
    std::chrono::seconds getCurrentTime() const;
    std::string extractTokenWithRegex(const std::string &iText, const std::string &iRegex) const;
    static size_t curlCallbackStringOutput(void *iPtr, size_t iSize, size_t iNmemb, std::string *iUserData);

    friend class TokenTests;
};