Add RED4ext logging shim

red4ext/EdgeWeightGPS/src/Main.cpp

@@ -0,0 +1,103 @@
+#include <RED4ext/Api/ApiVersion.hpp>
+#include <RED4ext/Api/v1/EMainReason.hpp>
+#include <RED4ext/Api/v1/PluginHandle.hpp>
+#include <RED4ext/Api/v1/PluginInfo.hpp>
+#include <RED4ext/Api/v1/Runtime.hpp>
+#include <RED4ext/Api/v1/Version.hpp>
+#include <RED4ext/Common.hpp>
+
+#include <windows.h>
+
+#include <chrono>
+#include <filesystem>
+#include <fstream>
+#include <iomanip>
+#include <mutex>
+#include <sstream>
+#include <string_view>
+
+namespace RED4ext::v1
+{
+struct Sdk;
+}
+
+namespace
+{
+HMODULE gModule = nullptr;
+std::mutex gLogMutex;
+
+std::filesystem::path GetLogPath()
+{
+    wchar_t modulePath[MAX_PATH]{};
+    if (gModule && GetModuleFileNameW(gModule, modulePath, MAX_PATH) > 0)
+    {
+        auto path = std::filesystem::path(modulePath);
+        return path.parent_path() / L"EdgeWeightGPS.log";
+    }
+
+    return std::filesystem::path(L"red4ext") / L"plugins" / L"EdgeWeightGPS" / L"EdgeWeightGPS.log";
+}
+
+void Log(std::string_view aMessage)
+{
+    std::lock_guard lock(gLogMutex);
+
+    auto now = std::chrono::system_clock::now();
+    auto time = std::chrono::system_clock::to_time_t(now);
+    std::tm localTime{};
+    localtime_s(&localTime, &time);
+
+    std::ofstream out(GetLogPath(), std::ios::app);
+    if (!out)
+    {
+        return;
+    }
+
+    out << std::put_time(&localTime, "%Y-%m-%d %H:%M:%S") << " " << aMessage << "\n";
+}
+
+const char* ReasonToString(RED4ext::v1::EMainReason aReason)
+{
+    switch (aReason)
+    {
+    case RED4ext::v1::EMainReason::Load:
+        return "Load";
+    case RED4ext::v1::EMainReason::Unload:
+        return "Unload";
+    }
+
+    return "Unknown";
+}
+}
+
+BOOL APIENTRY DllMain(HMODULE aModule, DWORD aReason, LPVOID)
+{
+    if (aReason == DLL_PROCESS_ATTACH)
+    {
+        gModule = aModule;
+    }
+    return TRUE;
+}
+
+RED4EXT_C_EXPORT bool RED4EXT_CALL Main(RED4ext::v1::PluginHandle aHandle, RED4ext::v1::EMainReason aReason,
+                                        const RED4ext::v1::Sdk* aSdk)
+{
+    std::ostringstream line;
+    line << "EdgeWeightGPS Main reason=" << ReasonToString(aReason) << " handle=" << aHandle << " sdk=" << aSdk;
+    Log(line.str());
+    return true;
+}
+
+RED4EXT_C_EXPORT void RED4EXT_CALL Query(RED4ext::v1::PluginInfo* aInfo)
+{
+    aInfo->name = L"EdgeWeightGPS";
+    aInfo->author = L"salt+Codex";
+    aInfo->version = RED4ext::v1::SemVer{0, 1, 0, {0, 0}};
+    aInfo->runtime = RED4ext::v1::FileVer{3, 0, 80, 51928};
+    aInfo->sdk = RED4ext::v1::SemVer{RED4EXT_VER_MAJOR, RED4EXT_VER_MINOR, RED4EXT_VER_PATCH, {0, 0}};
+}
+
+RED4EXT_C_EXPORT uint32_t RED4EXT_CALL Supports()
+{
+    return RED4EXT_API_VERSION_1;
+}