cpp/include/utils/exceptions.hpp

/**
 * @file exceptions.hpp
 * @brief Custom exception hierarchy.
 */

#pragma once

#include <stdexcept>
#include <string>

namespace app::utils {

class AppException : public std::runtime_error {
public:
    AppException(const std::string& msg, int code = 500)
        : std::runtime_error(msg), status_code_(code) {}

    int status_code() const noexcept { return status_code_; }

private:
    int status_code_;
};

class ValidationError : public AppException {
public:
    explicit ValidationError(const std::string& msg)
        : AppException(msg, 400) {}
};

class NotFoundError : public AppException {
public:
    explicit NotFoundError(const std::string& resource)
        : AppException(resource + " not found", 404) {}
};

class AuthenticationError : public AppException {
public:
    AuthenticationError()
        : AppException("Authentication failed", 401) {}
};

} // namespace app::utils