allow game log to be configured using command line flags

1 files changed, 26 insertions, 4 deletions

diff --git a/go/log/log.go b/go/log/log.go
index ff090425..dbe3af66 100644
--- a/go/log/log.go
+++ b/go/log/log.go
@@ -8,18 +8,32 @@ import (
 	"os"
 )
 
-const GameLogLevel = 99
+var GameLogLevel slog.Level = 99
+
+var Logger *slog.Logger
 
 var handleGameRecord func(any)
 
+// RegisterGameRecordHandler registers a callback for game records.
+// The registered callback can be used by the game's UI to present game log entries to the user.
+func RegisterGameRecordHandler(handler func(any)) {
+	handleGameRecord = handler
+}
+
 func init() {
-	// TODO: allow to specify the value and the file
-	l := slog.New(slog.NewTextHandler(
+	Logger = slog.New(slog.NewTextHandler(
 		os.Stdout,
 		&slog.HandlerOptions{AddSource: true}))
-	slog.SetDefault(l)
+	slog.SetDefault(Logger)
+}
+
+// Configure controls the logging behavior of the default logger.
+func Configure(files []string, opts *slog.HandlerOptions) {
+	Logger = slog.New(NewGameLogHandler(files, opts))
+	slog.SetDefault(Logger)
 }
 
+// Game calls the registered handleGameRecord callback and [Logger.Log] on the default logger.
 func Game(obj any) {
 	if handleGameRecord != nil {
 		handleGameRecord(obj)
@@ -28,34 +42,42 @@ func Game(obj any) {
 	slog.Log(context.Background(), GameLogLevel, msg)
 }
 
+// Debug calls [Logger.Debug] on the default logger.
 func Debug(msg string, args ...any) {
 	slog.Debug(msg, args...)
 }
 
+// Info calls [Logger.Info] on the default logger.
 func Info(msg string, args ...any) {
 	slog.Info(msg, args...)
 }
 
+// Warn calls [Logger.Warn] on the default logger.
 func Warn(msg string, args ...any) {
 	slog.Warn(msg, args...)
 }
 
+// Error calls [Logger.Error] on the default logger.
 func Error(msg string, args ...any) {
 	slog.Error(msg, args...)
 }
 
+// Fatal calls [log.Fatal].
 func Fatal(args ...any) {
 	log.Fatal(args...)
 }
 
+// Fatalf calls [log.Fatalf].
 func Fatalf(msg string, args ...any) {
 	log.Fatalf(msg, args...)
 }
 
+// Panic calls [log.Panic].
 func Panic(args ...any) {
 	log.Panic(args...)
 }
 
+// Panicf calls [log.Panicf].
 func Panicf(msg string, args ...any) {
 	log.Panicf(msg, args...)
 }