From 5bd5ee10e644d55d96ed756453d7f5782a7f865e Mon Sep 17 00:00:00 2001
From: Qudix <17361645+Qudix@users.noreply.github.com>
Date: Wed, 13 Sep 2023 21:05:00 -0500
Subject: [PATCH] feat: add default logger (#41)

When SFSE::Init is used, it will now initialize a default spdlog logger.
---
 CommonLibSF/include/SFSE/API.h        |  2 +-
 CommonLibSF/include/SFSE/Interfaces.h |  2 ++
 CommonLibSF/include/SFSE/Logger.h     |  1 +
 CommonLibSF/src/SFSE/API.cpp          |  5 ++++-
 CommonLibSF/src/SFSE/Interfaces.cpp   |  9 +++++----
 CommonLibSF/src/SFSE/Logger.cpp       | 29 +++++++++++++++++++++++++++
 6 files changed, 42 insertions(+), 6 deletions(-)

diff --git a/CommonLibSF/include/SFSE/API.h b/CommonLibSF/include/SFSE/API.h
index 74227313..e83bc981 100644
--- a/CommonLibSF/include/SFSE/API.h
+++ b/CommonLibSF/include/SFSE/API.h
@@ -9,7 +9,7 @@
 
 namespace SFSE
 {
-	void Init(const LoadInterface* a_intfc) noexcept;
+	void Init(const LoadInterface* a_intfc, bool a_log = true) noexcept;
 	void RegisterForAPIInitEvent(std::function<void()> a_fn);
 
 	PluginHandle GetPluginHandle() noexcept;
diff --git a/CommonLibSF/include/SFSE/Interfaces.h b/CommonLibSF/include/SFSE/Interfaces.h
index c8b25a54..eecd8795 100644
--- a/CommonLibSF/include/SFSE/Interfaces.h
+++ b/CommonLibSF/include/SFSE/Interfaces.h
@@ -134,6 +134,8 @@ namespace SFSE
 
 		constexpr void MinimumRequiredXSEVersion(REL::Version a_version) noexcept { xseMinimum = a_version.pack(); }
 
+		[[nodiscard]] static const PluginVersionData* GetSingleton() noexcept;
+
 		const std::uint32_t dataVersion{ kVersion };
 		std::uint32_t       pluginVersion = 0;
 		char                pluginName[256] = {};
diff --git a/CommonLibSF/include/SFSE/Logger.h b/CommonLibSF/include/SFSE/Logger.h
index 00c0332d..61fd47b6 100644
--- a/CommonLibSF/include/SFSE/Logger.h
+++ b/CommonLibSF/include/SFSE/Logger.h
@@ -23,6 +23,7 @@ namespace SFSE::log
 	SFSE_MAKE_SOURCE_LOGGER(critical, critical);
 
 	[[nodiscard]] std::optional<std::filesystem::path> log_directory();
+	void init();
 }  // namespace SFSE::log
 
 #undef SFSE_MAKE_SOURCE_LOGGER
diff --git a/CommonLibSF/src/SFSE/API.cpp b/CommonLibSF/src/SFSE/API.cpp
index a6e1b054..be33e530 100644
--- a/CommonLibSF/src/SFSE/API.cpp
+++ b/CommonLibSF/src/SFSE/API.cpp
@@ -47,10 +47,13 @@ namespace SFSE
 		}
 	}  // namespace detail
 
-	void Init(const LoadInterface* a_intfc) noexcept
+	void Init(const LoadInterface* a_intfc, bool a_log) noexcept
 	{
 		stl_assert(a_intfc, "interface is null"sv);
 
+		if (a_log)
+			log::init();
+
 		(void)REL::Module::get();
 
 		auto&       storage = detail::APIStorage::get();
diff --git a/CommonLibSF/src/SFSE/Interfaces.cpp b/CommonLibSF/src/SFSE/Interfaces.cpp
index 12654367..4fbf0916 100644
--- a/CommonLibSF/src/SFSE/Interfaces.cpp
+++ b/CommonLibSF/src/SFSE/Interfaces.cpp
@@ -2,10 +2,6 @@
 #include "SFSE/API.h"
 #include "SFSE/Logger.h"
 
-#include <Windows.h>
-
-EXTERN_C IMAGE_DOS_HEADER __ImageBase;
-
 namespace SFSE
 {
 	REL::Version QueryInterface::RuntimeVersion() const
@@ -71,4 +67,9 @@ namespace SFSE
 		assert(this);
 		return reinterpret_cast<const detail::SFSETrampolineInterface*>(this);
 	}
+
+	const PluginVersionData* PluginVersionData::GetSingleton() noexcept
+	{
+		return reinterpret_cast<const PluginVersionData*>(WinAPI::GetProcAddress(WinAPI::GetCurrentModule(), "SFSEPlugin_Version"));
+	}
 }  // namespace SFSE
diff --git a/CommonLibSF/src/SFSE/Logger.cpp b/CommonLibSF/src/SFSE/Logger.cpp
index 005683ba..7fa31801 100644
--- a/CommonLibSF/src/SFSE/Logger.cpp
+++ b/CommonLibSF/src/SFSE/Logger.cpp
@@ -1,6 +1,9 @@
 #include "SFSE/Logger.h"
 #include "SFSE/API.h"
 
+#include <spdlog/sinks/basic_file_sink.h>
+#include <spdlog/sinks/msvc_sink.h>
+
 #include <ShlObj.h>
 
 namespace SFSE
@@ -21,5 +24,31 @@ namespace SFSE
 			path /= "My Games\\Starfield\\SFSE\\Logs";
 			return path;
 		}
+
+		void init()
+		{
+			auto path = log_directory();
+			if (!path)
+				return;
+			
+			const auto data = PluginVersionData::GetSingleton();
+			*path /= std::format("{}.log", data->GetPluginName());
+
+			std::vector<spdlog::sink_ptr> sinks{
+				std::make_shared<spdlog::sinks::basic_file_sink_mt>(path->string(), true), 
+				std::make_shared<spdlog::sinks::msvc_sink_mt>()
+			};
+
+			auto logger = std::make_shared<spdlog::logger>("global", sinks.begin(), sinks.end());
+#ifndef NDEBUG
+			logger->set_level(spdlog::level::debug);
+			logger->flush_on(spdlog::level::debug);
+#else
+			logger->set_level(spdlog::level::info);
+			logger->flush_on(spdlog::level::info);
+#endif
+			spdlog::set_default_logger(std::move(logger));
+			spdlog::set_pattern("[%T.%e] [%=5t] [%L] %v");
+		}
 	}  // namespace log
 }  // namespace SFSE