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support/include/utils/time.hpp

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+/*
+  Copyright <2018-2025> <scott.e.graves@protonmail.com>
+
+  Permission is hereby granted, free of charge, to any person obtaining a copy
+  of this software and associated documentation files (the "Software"), to deal
+  in the Software without restriction, including without limitation the rights
+  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+  copies of the Software, and to permit persons to whom the Software is
+  furnished to do so, subject to the following conditions:
+
+  The above copyright notice and this permission notice shall be included in all
+  copies or substantial portions of the Software.
+
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+  SOFTWARE.
+*/
+#ifndef FIFTHGRID_INCLUDE_UTILS_TIME_HPP_
+#define FIFTHGRID_INCLUDE_UTILS_TIME_HPP_
+
+#include "utils/config.hpp"
+
+namespace fifthgrid::utils::time {
+inline constexpr auto NANOS_PER_SECOND{1000000000ULL};
+inline constexpr auto WIN32_TIME_CONVERSION{116444736000000000ULL};
+inline constexpr auto WIN32_TIME_NANOS_PER_TICK{100ULL};
+
+#if defined(PROJECT_ENABLE_SPDLOG) || defined(PROJECT_ENABLE_FMT)
+[[nodiscard]] inline auto convert_to_utc(time_t time) -> std::time_t {
+  auto calendar_time = fmt::gmtime(time);
+  return std::mktime(&calendar_time);
+}
+#endif // defined(PROJECT_ENABLE_SPDLOG) || defined(PROJECT_ENABLE_FMT)
+
+#if defined(PROJECT_ENABLE_SPDLOG) || defined(PROJECT_ENABLE_FMT)
+[[nodiscard]] inline auto get_current_time_utc() -> std::time_t {
+  auto calendar_time = fmt::gmtime(std::time(nullptr));
+  return std::mktime(&calendar_time);
+}
+#endif // defined(PROJECT_ENABLE_SPDLOG) || defined(PROJECT_ENABLE_FMT)
+
+void get_local_time_now(struct tm &local_time);
+
+[[nodiscard]] auto get_time_now() -> std::uint64_t;
+
+#if defined(_WIN32)
+auto strptime(const char *s, const char *f, struct tm *tm) -> const char *;
+
+[[nodiscard]] auto unix_time_to_filetime(std::uint64_t unix_time) -> FILETIME;
+
+[[nodiscard]] auto
+windows_file_time_to_unix_time(FILETIME win_time) -> std::uint64_t;
+
+[[nodiscard]] auto
+windows_time_t_to_unix_time(__time64_t win_time) -> std::uint64_t;
+#endif // defined(_WIN32)
+
+[[nodiscard]] auto
+unix_time_to_windows_time(std::uint64_t unix_time) -> std::uint64_t;
+
+[[nodiscard]] auto
+windows_time_to_unix_time(std::uint64_t win_time) -> std::uint64_t;
+} // namespace fifthgrid::utils::time
+
+#endif // FIFTHGRID_INCLUDE_UTILS_TIME_HPP_