From 7b1ed4bd956a7db7bdc49972e24f3554367c857a Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Wed, 6 Aug 2025 17:54:24 +0300
Subject: [PATCH] Make util::make_uuid use md5 hash

---
 libs/util/include/psemek/util/uuid.hpp | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/libs/util/include/psemek/util/uuid.hpp b/libs/util/include/psemek/util/uuid.hpp
index 9170f956..3987444f 100644
--- a/libs/util/include/psemek/util/uuid.hpp
+++ b/libs/util/include/psemek/util/uuid.hpp
@@ -1,6 +1,7 @@
 #pragma once
 
 #include <psemek/util/hash.hpp>
+#include <psemek/util/md5_inl.hpp>
 
 #include <cstdint>
 #include <string_view>
@@ -46,18 +47,14 @@ namespace psemek::util
 	// TODO: use SHA-1 or something like that?
 	constexpr uuid make_uuid(std::string_view str)
 	{
-		struct char_hash
-		{
-			constexpr std::size_t operator()(char c) const noexcept
-			{
-				return static_cast<std::size_t>(c);
-			}
-		};
+		auto md5_result = md5_inl::hash(str);
+
+		uuid result;
+		result.values[0] = static_cast<std::uint64_t>(md5_result[0]) | (static_cast<std::uint64_t>(md5_result[1]) << 32);
+		result.values[1] = static_cast<std::uint64_t>(md5_result[2]) | (static_cast<std::uint64_t>(md5_result[3]) << 32);
 
-		uuid result{0x6eb49abceae6db24ull, 0x476c4c69fd7925a7ull};
-		hash_sequence(result[0], str.begin(), str.end(), char_hash{});
-		hash_sequence(result[1], str.begin(), str.end(), char_hash{});
 		make_rfc_4122(result);
+
 		return result;
 	}