chore: move the go code into a subfolder

apps/api/internal/domain/saml_error_reason.go

@@ -0,0 +1,41 @@
+package domain
+
+import (
+	"github.com/zitadel/saml/pkg/provider"
+)
+
+type SAMLErrorReason int32
+
+const (
+	SAMLErrorReasonUnspecified SAMLErrorReason = iota
+	SAMLErrorReasonVersionMissmatch
+	SAMLErrorReasonAuthNFailed
+	SAMLErrorReasonInvalidAttrNameOrValue
+	SAMLErrorReasonInvalidNameIDPolicy
+	SAMLErrorReasonRequestDenied
+	SAMLErrorReasonRequestUnsupported
+	SAMLErrorReasonUnsupportedBinding
+)
+
+func SAMLErrorReasonToString(reason SAMLErrorReason) string {
+	switch reason {
+	case SAMLErrorReasonUnspecified:
+		return "unspecified error"
+	case SAMLErrorReasonVersionMissmatch:
+		return provider.StatusCodeVersionMissmatch
+	case SAMLErrorReasonAuthNFailed:
+		return provider.StatusCodeAuthNFailed
+	case SAMLErrorReasonInvalidAttrNameOrValue:
+		return provider.StatusCodeInvalidAttrNameOrValue
+	case SAMLErrorReasonInvalidNameIDPolicy:
+		return provider.StatusCodeInvalidNameIDPolicy
+	case SAMLErrorReasonRequestDenied:
+		return provider.StatusCodeRequestDenied
+	case SAMLErrorReasonRequestUnsupported:
+		return provider.StatusCodeRequestUnsupported
+	case SAMLErrorReasonUnsupportedBinding:
+		return provider.StatusCodeUnsupportedBinding
+	default:
+		return "unspecified error"
+	}
+}