package log

//const (
//	maximumCallerDepth int = 25
//	knownLoggingFrames int = 4
//)

//var (
//	callerInitOnce     sync.Once
//	loggerPackage      string
//	minimumCallerDepth int
//)

//func getCaller() *runtime.Frame {
//	// cache this package's fully-qualified name
//	callerInitOnce.Do(func() {
//		pcs := make([]uintptr, maximumCallerDepth)
//		_ = runtime.Callers(0, pcs)
//
//		// dynamic get the package name and the minimum caller depth
//		for i := 0; i < maximumCallerDepth; i++ {
//			funcName := runtime.FuncForPC(pcs[i]).Name()
//			if strings.Contains(funcName, "getCaller") {
//				loggerPackage = getPackageName(funcName)
//				break
//			}
//		}
//
//		minimumCallerDepth = knownLoggingFrames
//	})
//
//	// Restrict the lookback frames to avoid runaway lookups
//	pcs := make([]uintptr, maximumCallerDepth)
//	depth := runtime.Callers(minimumCallerDepth, pcs)
//	frames := runtime.CallersFrames(pcs[:depth])
//
//	for f, again := frames.Next(); again; f, again = frames.Next() {
//		pkg := getPackageName(f.Function)
//
//		// If the caller isn't part of this package, we're done
//		if pkg != loggerPackage {
//			return &f //nolint:scopelint
//		}
//	}
//
//	// if we got here, we failed to find the caller's context
//	return nil
//}
//
//func getPackageName(f string) string {
//	for {
//		lastPeriod := strings.LastIndex(f, ".")
//		lastSlash := strings.LastIndex(f, "/")
//		if lastPeriod > lastSlash {
//			f = f[:lastPeriod]
//		} else {
//			break
//		}
//	}
//	return f
//}