refactor logging setup and split local/remote close APIs

utils/utils_test.go

@@ -0,0 +1,34 @@
+package utils
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"git.nix13.pw/scuroneko/slog"
+)
+
+func TestCreateFileLoggerWritesToConfiguredFile(t *testing.T) {
+	logPath := filepath.Join(t.TempDir(), "main.log")
+
+	logger, err := CreateFileLogger("TEST", slog.DEBUG, logPath)
+	if err != nil {
+		t.Fatalf("CreateFileLogger returned error: %v", err)
+	}
+	logger.Infoln("hello from file logger")
+	if err := logger.Close(); err != nil {
+		t.Fatalf("Close returned error: %v", err)
+	}
+
+	data, err := os.ReadFile(logPath)
+	if err != nil {
+		t.Fatalf("ReadFile returned error: %v", err)
+	}
+	if !strings.Contains(string(data), "hello from file logger") {
+		t.Fatalf("expected log message in file, got %q", string(data))
+	}
+	if !strings.Contains(string(data), "[TEST]") {
+		t.Fatalf("expected prefix in file, got %q", string(data))
+	}
+}