From 0f528254747546fabc80371be057f131ed207335 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?=
 <41315874+fumiama@users.noreply.github.com>
Date: Mon, 22 Dec 2025 00:31:08 +0800
Subject: [PATCH] feat(model): add Cloner to Protocol

---
 model/api.go    | 5 +++++
 model/genai.go  | 9 +++++++++
 model/ollama.go | 8 ++++++++
 model/openai.go | 8 ++++++++
 4 files changed, 30 insertions(+)

diff --git a/model/api.go b/model/api.go
index fa35faa..44834a2 100644
--- a/model/api.go
+++ b/model/api.go
@@ -21,6 +21,10 @@ type Requester interface {
 	Header(key string, h http.Header) // Header decorator
 }
 
+type Cloner interface {
+	Clone() Cloner
+}
+
 type MessageBuilder[T any] interface {
 	System(prompt string) T
 	User(prompt ...Content) T
@@ -32,4 +36,5 @@ type Protocol interface {
 	Outputer
 	Requester
 	MessageBuilder[Protocol]
+	Cloner
 }
diff --git a/model/genai.go b/model/genai.go
index 1c5c718..4984fa3 100644
--- a/model/genai.go
+++ b/model/genai.go
@@ -188,3 +188,12 @@ func (opai *GenAI) Assistant(prompt ...Content) Protocol {
 	})
 	return opai
 }
+
+func (opai *GenAI) Clone() Cloner {
+	x := new(GenAI)
+	*x = *opai
+	x.SystemInstruction = nil
+	x.Contents = nil
+	x.Candidates = nil
+	return x
+}
diff --git a/model/ollama.go b/model/ollama.go
index afd25fa..0a4ba25 100644
--- a/model/ollama.go
+++ b/model/ollama.go
@@ -101,3 +101,11 @@ func (ollm *OLLaMA) Assistant(prompt ...Content) Protocol {
 	})
 	return ollm
 }
+
+func (ollm *OLLaMA) Clone() Cloner {
+	x := new(OLLaMA)
+	*x = *ollm
+	x.Messages = nil
+	x.Message = nil
+	return x
+}
diff --git a/model/openai.go b/model/openai.go
index 121d9ae..d044902 100644
--- a/model/openai.go
+++ b/model/openai.go
@@ -155,3 +155,11 @@ func (opai *OpenAI) User(prompt ...Content) Protocol {
 func (opai *OpenAI) Assistant(prompt ...Content) Protocol {
 	return opai.normal("assistant", prompt...)
 }
+
+func (opai *OpenAI) Clone() Cloner {
+	x := new(OpenAI)
+	*x = *opai
+	x.Choices = nil
+	x.Messages = nil
+	return x
+}