Miscellaneous bug fixes and format cleanupmisc-changes

3 files changed, 14 insertions, 15 deletions

diff --git a/src/openvic-simulation/dataloader/Dataloader.cpp b/src/openvic-simulation/dataloader/Dataloader.cpp
index 6a2a3bb..cce766f 100644
--- a/src/openvic-simulation/dataloader/Dataloader.cpp
+++ b/src/openvic-simulation/dataloader/Dataloader.cpp
@@ -109,10 +109,7 @@ fs::path Dataloader::lookup_image_file(std::string_view path) const {
 	return lookup_file(path);
 }
 
-template<typename _DirIterator, typename _UniqueKey>
-requires requires (_UniqueKey const& unique_key, std::string_view path) {
-	{ unique_key(path) } -> std::convertible_to<std::string_view>;
-}
+template<typename _DirIterator, UniqueFileKey _UniqueKey>
 Dataloader::path_vector_t Dataloader::_lookup_files_in_dir(
 	std::string_view path, fs::path const& extension, _UniqueKey const& unique_key
 ) const {
@@ -129,7 +126,7 @@ Dataloader::path_vector_t Dataloader::_lookup_files_in_dir(
 		for (fs::directory_entry const& entry : _DirIterator { root / dirpath, ec }) {
 			if (entry.is_regular_file()) {
 				fs::path file = entry;
-				if ((extension.empty() || file.extension() == extension)) {
+				if (extension.empty() || file.extension() == extension) {
 					const std::string full_path = file.string();
 					std::string_view relative_path = full_path;
 					relative_path.remove_prefix(root_len);
@@ -142,7 +139,7 @@ Dataloader::path_vector_t Dataloader::_lookup_files_in_dir(
 							ret.emplace_back(std::move(file));
 						} else if (it->second.root == &root) {
 							Logger::warning(
-								"Files in the same directory with conflicting keys: ", it->first, " - ", it->second.file,
+								"Files under the same root with conflicting keys: ", it->first, " - ", it->second.file,
 								" (accepted) and ", key, " - ", file, " (rejected)"
 							);
 						}
diff --git a/src/openvic-simulation/dataloader/Dataloader.hpp b/src/openvic-simulation/dataloader/Dataloader.hpp
index de72fcd..31e0904 100644
--- a/src/openvic-simulation/dataloader/Dataloader.hpp
+++ b/src/openvic-simulation/dataloader/Dataloader.hpp
@@ -11,6 +11,11 @@ namespace OpenVic {
 	struct GameManager;
 	class UIManager;
 
+	template<typename _UniqueFileKey>
+	concept UniqueFileKey = requires(_UniqueFileKey const& unique_key, std::string_view path) {
+		requires std::same_as<std::remove_cvref_t<decltype(unique_key(path))>, std::string_view>;
+	};
+
 	class Dataloader {
 	public:
 		using path_vector_t = std::vector<fs::path>;
@@ -34,10 +39,7 @@ namespace OpenVic {
 		/* _DirIterator is fs::directory_iterator or fs::recursive_directory_iterator. _UniqueKey is the type of a callable
 		 * which converts a string_view filepath with root removed into a string_view unique key. Any path whose key is empty
 		 * or matches an earlier found path's key is discarded, ensuring each looked up path's key is non-empty and unique. */
-		template<typename _DirIterator, typename _UniqueKey>
-		requires requires (_UniqueKey const& unique_key, std::string_view path) {
-			{ unique_key(path) } -> std::convertible_to<std::string_view>;
-		}
+		template<typename _DirIterator, UniqueFileKey _UniqueKey>
 		path_vector_t _lookup_files_in_dir(
 			std::string_view path, fs::path const& extension, _UniqueKey const& unique_key
 		) const;
diff --git a/src/openvic-simulation/dataloader/NodeTools.hpp b/src/openvic-simulation/dataloader/NodeTools.hpp
index 4b33c6d..0845e6c 100644
--- a/src/openvic-simulation/dataloader/NodeTools.hpp
+++ b/src/openvic-simulation/dataloader/NodeTools.hpp
@@ -357,17 +357,17 @@ namespace OpenVic {
 		}
 
 		template<typename... Args>
-		bool warn_or_error(bool warn, Args... args) {
+		bool warn_or_error(bool warn, Args&&... args) {
 			if (warn) {
-				Logger::warning(args...);
+				Logger::warning(std::forward<Args>(args)...);
 				return true;
 			} else {
-				Logger::error(args...);
+				Logger::error(std::forward<Args>(args)...);
 				return false;
 			}
 		}
 
-		template<typename T, typename U, typename...SetArgs>
+		template<typename T, typename U, typename... SetArgs>
 		Callback<T> auto set_callback(tsl::ordered_set<U, SetArgs...>& set, bool warn = false) {
 			return [&set, warn](T val) -> bool {
 				if (set.emplace(std::move(val)).second) {
@@ -377,7 +377,7 @@ namespace OpenVic {
 			};
 		}
 
-		template<std::derived_from<HasIdentifier> T, typename...SetArgs>
+		template<std::derived_from<HasIdentifier> T, typename... SetArgs>
 		Callback<T const&> auto set_callback_pointer(tsl::ordered_set<T const*, SetArgs...>& set, bool warn = false) {
 			return [&set, warn](T const& val) -> bool {
 				if (set.emplace(&val).second) {