#pragma once
#include <exception>
#include <functional>
#include <string>
namespace drogon
{
namespace nosql
{
enum class RedisErrorCode
{
    kNone = 0,
    kUnknown,
    kConnectionBroken,
    kNoConnectionAvailable,
    kRedisError,
    kInternalError,
    kTransactionCancelled,
    kBadType,
    kTimeout
};
class RedisException final : public std::exception
{
  public:
    const char *what() const noexcept override
    {
        return message_.data();
    }
    RedisErrorCode code() const
    {
        return code_;
    }
    RedisException(RedisErrorCode code, const std::string &message)
        : message_(message), code_(code)
    {
    }
    RedisException(RedisErrorCode code, std::string &&message)
        : message_(std::move(message)), code_(code)
    {
    }
    RedisException() = delete;
  private:
    std::string message_;
    RedisErrorCode code_{RedisErrorCode::kNone};
};
using RedisExceptionCallback = std::function<void(const RedisException &)>;
}  
}