#pragma once

#include <cstdint>
#include <expected>
#include <string>
#include <utility>

#include <modulus.hpp>


namespace vamp_zero {

enum class error_code : std::int32_t {
  OK = 0,
  INVALID_ARGUMENT = 1,
  NOT_FOUND = 2,
  UNAVAILABLE = 3,
  PERSISTENCE = 4,
  CONFLICT = 5,
  INTERNAL = 6,
};

auto make_error(vamp_zero::error_code code, std::string message, modulus::source_location location = modulus::source_location(__builtin_FILE(), __builtin_LINE(), __builtin_FUNCTION())) -> modulus::error;
auto fail_void(vamp_zero::error_code code, std::string message, modulus::source_location location = modulus::source_location(__builtin_FILE(), __builtin_LINE(), __builtin_FUNCTION())) -> std::expected<void, modulus::error>;

template <typename VALUE>
auto fail(vamp_zero::error_code code, std::string message, modulus::source_location location = modulus::source_location(__builtin_FILE(), __builtin_LINE(), __builtin_FUNCTION())) -> std::expected<VALUE, modulus::error>;

}

template <typename VALUE>
auto vamp_zero::fail(vamp_zero::error_code code, std::string message, modulus::source_location location) -> std::expected<VALUE, modulus::error> {
  return modulus::fail<VALUE>(vamp_zero::make_error(code, std::move(message), location));
}