Add mutex to event

event.go

@@ -3,6 +3,7 @@ package events
 import (
 	"fmt"
 	"log/slog"
+	"sync"
 
 	"github.com/google/uuid"
 	"golang.org/x/xerrors"
@@ -26,6 +27,7 @@ var (
 
 type Event struct {
 	attrs map[string]slog.Value
+	mutex sync.RWMutex
 
 	baseLogger *slog.Logger
 }
@@ -44,11 +46,17 @@ func NewEvent(logger *slog.Logger) *Event {
 }
 
 func (e *Event) SetAttr(key string, value any) {
+	e.mutex.Lock()
 	e.attrs[key] = slog.AnyValue(value)
+	e.mutex.Unlock()
 }
 
 func (e *Event) GetAttr(key string) any {
-	return e.attrs[key].Any()
+	e.mutex.RLock()
+	value := e.attrs[key].Any()
+	e.mutex.RUnlock()
+
+	return value
 }
 
 func (e *Event) SetError(err error) {
@@ -64,6 +72,8 @@ func (e *Event) SetError(err error) {
 }
 
 func (e *Event) Logger() *slog.Logger {
+	e.mutex.RLock()
+
 	attrs := make([]any, 0, len(e.attrs))
 
 	for key, value := range e.attrs {
@@ -73,5 +83,7 @@ func (e *Event) Logger() *slog.Logger {
 		})
 	}
 
+	e.mutex.RUnlock()
+
 	return e.baseLogger.With(attrs...)
 }