cpp

jtlsrv-cpp/src/log.cpp

@@ -0,0 +1,45 @@
+#include "log.hpp"
+#include <chrono>
+#include <cstdio>
+#include <cstdarg>
+#include <ctime>
+
+namespace logc {
+
+static const char* level_label(Level l) {
+    switch (l) {
+        case Level::Info:    return "\033[36mINFO\033[0m";
+        case Level::Success: return "\033[32mOK  \033[0m";
+        case Level::Warn:    return "\033[33mWARN\033[0m";
+        case Level::Error:   return "\033[31mERROR\033[0m";
+    }
+    return "????";
+}
+
+static FILE* log_stream(Level l) {
+    return (l == Level::Warn || l == Level::Error) ? stderr : stdout;
+}
+
+void write(Level level, const char* fmt, ...) {
+    // ISO-8601 timestamp
+    auto now = std::chrono::system_clock::now();
+    std::time_t t = std::chrono::system_clock::to_time_t(now);
+    std::tm tm_buf{};
+    localtime_r(&t, &tm_buf);
+
+    char ts[32];
+    std::strftime(ts, sizeof(ts), "%Y-%m-%dT%H:%M:%S", &tm_buf);
+
+    FILE* out = log_stream(level);
+    fprintf(out, "\033[90m%s\033[0m %s ", ts, level_label(level));
+
+    va_list args;
+    va_start(args, fmt);
+    vfprintf(out, fmt, args);
+    va_end(args);
+
+    fprintf(out, "\n");
+    fflush(out);
+}
+
+} // namespace logc