6 files changed, 50 insertions, 4 deletions
diff --git a/src/utils/is_one_of.hpp b/src/utils/is_one_of.hpp
new file mode 100644
index 0000000..4d6770e
--- /dev/null
+++ b/src/utils/is_one_of.hpp
@@ -0,0 +1,17 @@
+#pragma once
+
+#include <type_traits>
+
+template <typename...>
+struct is_one_of_implem {
+    static constexpr bool value = false;
+};
+
+template <typename F, typename S, typename... T>
+struct is_one_of_implem<F, S, T...> {
+    static constexpr bool value =
+        std::is_same<F, S>::value || is_one_of_implem<F, T...>::value;
+};
+
+template<typename... T>
+constexpr bool is_one_of = is_one_of_implem<T...>::value;
diff --git a/src/utils/optional_bool.cpp b/src/utils/optional_bool.cpp
new file mode 100644
index 0000000..56fdca2
--- /dev/null
+++ b/src/utils/optional_bool.cpp
@@ -0,0 +1,8 @@
+#include <utils/optional_bool.hpp>
+
+
+std::ostream& operator<<(std::ostream& os, const OptionalBool& o)
+{
+  os << o.to_string();
+  return os;
+}
diff --git a/src/utils/optional_bool.hpp b/src/utils/optional_bool.hpp
index 59bbbab..867aca2 100644
--- a/src/utils/optional_bool.hpp
+++ b/src/utils/optional_bool.hpp
@@ -20,7 +20,7 @@ struct OptionalBool
     this->is_set = false;
   }
 
-  std::string to_string()
+  std::string to_string() const
   {
     if (this->is_set == false)
       return "unset";
@@ -33,3 +33,5 @@ struct OptionalBool
   bool is_set{false};
   bool value{false};
 };
+
+std::ostream& operator<<(std::ostream& os, const OptionalBool& o);
diff --git a/src/utils/scopetimer.hpp b/src/utils/scopetimer.hpp
new file mode 100644
index 0000000..7d3db9b
--- /dev/null
+++ b/src/utils/scopetimer.hpp
@@ -0,0 +1,17 @@
+#include <utils/scopeguard.hpp>
+
+#include <chrono>
+
+#include <logger/logger.hpp>
+
+template <typename Callback>
+auto make_scope_timer(Callback cb)
+{
+  const auto start_time = std::chrono::steady_clock::now();
+  return utils::make_scope_guard([start_time, cb = std::move(cb)]()
+                                 {
+                                   const auto now = std::chrono::steady_clock::now();
+                                   const auto elapsed = now - start_time;
+                                   cb(elapsed);
+                                 });
+}
diff --git a/src/utils/time.cpp b/src/utils/time.cpp
index bc2c18d..71306fd 100644
--- a/src/utils/time.cpp
+++ b/src/utils/time.cpp
@@ -9,9 +9,10 @@
 
 namespace utils
 {
-std::string to_string(const std::time_t& timestamp)
+std::string to_string(const std::chrono::system_clock::time_point::rep& time)
 {
   constexpr std::size_t stamp_size = 21;
+  const std::time_t timestamp = static_cast<std::time_t>(time);
   char date_buf[stamp_size];
   if (std::strftime(date_buf, stamp_size, "%FT%TZ", std::gmtime(&timestamp)) != stamp_size - 1)
     return "";
diff --git a/src/utils/time.hpp b/src/utils/time.hpp
index c71cd9c..4b19634 100644
--- a/src/utils/time.hpp
+++ b/src/utils/time.hpp
@@ -2,9 +2,10 @@
 
 #include <ctime>
 #include <string>
+#include <chrono>
 
 namespace utils
 {
-std::string to_string(const std::time_t& timestamp);
+std::string to_string(const std::chrono::system_clock::time_point::rep& timestamp);
 std::time_t parse_datetime(const std::string& stamp);
-}
-\ No newline at end of file
+}