refactor: simplify io code and make utils module independent

internal/notif/config.go

@@ -2,7 +2,7 @@ package notif
 
 import (
 	"github.com/yusing/go-proxy/internal/gperr"
-	"github.com/yusing/go-proxy/internal/utils"
+	"github.com/yusing/go-proxy/internal/serialization"
 )
 
 type NotificationConfig struct {
@@ -46,5 +46,5 @@ func (cfg *NotificationConfig) UnmarshalMap(m map[string]any) (err gperr.Error)
 			Withf("expect %s or %s", ProviderWebhook, ProviderGotify)
 	}
 
-	return utils.MapUnmarshalValidate(m, cfg.Provider)
+	return serialization.MapUnmarshalValidate(m, cfg.Provider)
 }

internal/notif/config_test.go

@@ -4,7 +4,7 @@ import (
 	"net/http"
 	"testing"
 
-	"github.com/yusing/go-proxy/internal/utils"
+	"github.com/yusing/go-proxy/internal/serialization"
 	. "github.com/yusing/go-proxy/internal/utils/testing"
 )
 
@@ -181,7 +181,7 @@ func TestNotificationConfig(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			var cfg NotificationConfig
 			provider := tt.cfg["provider"]
-			err := utils.MapUnmarshalValidate(tt.cfg, &cfg)
+			err := serialization.MapUnmarshalValidate(tt.cfg, &cfg)
 			if tt.wantErr {
 				ExpectHasError(t, err)
 			} else {

internal/notif/providers.go

@@ -10,12 +10,12 @@ import (
 
 	"github.com/yusing/go-proxy/internal/gperr"
 	"github.com/yusing/go-proxy/internal/logging"
-	"github.com/yusing/go-proxy/internal/utils"
+	"github.com/yusing/go-proxy/internal/serialization"
 )
 
 type (
 	Provider interface {
-		utils.CustomValidator
+		serialization.CustomValidator
 
 		GetName() string
 		GetURL() string