From d1933075c30ef1ee980d829b5636351e1a54915b Mon Sep 17 00:00:00 2001
From: hkfires <10558748+hkfires@users.noreply.github.com>
Date: Thu, 9 Oct 2025 16:35:08 +0800
Subject: [PATCH] Revert "feat(translator): Pass through imageConfig"

---
 .../openai/chat-completions/cli_openai_request.go      | 10 ++--------
 .../openai/chat-completions/gemini_openai_request.go   |  8 +-------
 .../responses/gemini_openai-responses_request.go       |  8 +-------
 3 files changed, 4 insertions(+), 22 deletions(-)

diff --git a/internal/translator/gemini-cli/openai/chat-completions/cli_openai_request.go b/internal/translator/gemini-cli/openai/chat-completions/cli_openai_request.go
index 62231662..3d1152f5 100644
--- a/internal/translator/gemini-cli/openai/chat-completions/cli_openai_request.go
+++ b/internal/translator/gemini-cli/openai/chat-completions/cli_openai_request.go
@@ -79,20 +79,14 @@ func ConvertOpenAIRequestToGeminiCLI(modelName string, inputRawJSON []byte, _ bo
 		out, _ = sjson.SetBytes(out, "request.generationConfig.topK", tkr.Num)
 	}
 
-	// Image config passthrough (e.g., aspectRatio)
-	// If the input carries generationConfig.imageConfig, preserve it in the Gemini CLI request.
-	if imgCfg := gjson.GetBytes(rawJSON, "generationConfig.imageConfig"); imgCfg.Exists() && imgCfg.IsObject() {
-		out, _ = sjson.SetRawBytes(out, "request.generationConfig.imageConfig", []byte(imgCfg.Raw))
-	}
-
-	// OpenRouter-style image_config (snake_case) support
+	// OpenRouter-style image_config support
 	// If the input uses top-level image_config.aspect_ratio, map it into request.generationConfig.imageConfig.aspectRatio.
-
 	if imgCfg := gjson.GetBytes(rawJSON, "image_config"); imgCfg.Exists() && imgCfg.IsObject() {
 		if ar := imgCfg.Get("aspect_ratio"); ar.Exists() && ar.Type == gjson.String {
 			out, _ = sjson.SetBytes(out, "request.generationConfig.imageConfig.aspectRatio", ar.Str)
 		}
 	}
+
 	// messages -> systemInstruction + contents
 	messages := gjson.GetBytes(rawJSON, "messages")
 	if messages.IsArray() {
diff --git a/internal/translator/gemini/openai/chat-completions/gemini_openai_request.go b/internal/translator/gemini/openai/chat-completions/gemini_openai_request.go
index 77ef7dfa..075d2b55 100644
--- a/internal/translator/gemini/openai/chat-completions/gemini_openai_request.go
+++ b/internal/translator/gemini/openai/chat-completions/gemini_openai_request.go
@@ -79,13 +79,7 @@ func ConvertOpenAIRequestToGemini(modelName string, inputRawJSON []byte, _ bool)
 		out, _ = sjson.SetBytes(out, "generationConfig.topK", tkr.Num)
 	}
 
-	// Image config passthrough (e.g., aspectRatio)
-	// If the input carries generationConfig.imageConfig, preserve it in the Gemini request.
-	if imgCfg := gjson.GetBytes(rawJSON, "generationConfig.imageConfig"); imgCfg.Exists() && imgCfg.IsObject() {
-		out, _ = sjson.SetRawBytes(out, "generationConfig.imageConfig", []byte(imgCfg.Raw))
-	}
-
-	// OpenRouter-style image_config (snake_case) support
+	// OpenRouter-style image_config support
 	// If the input uses top-level image_config.aspect_ratio, map it into generationConfig.imageConfig.aspectRatio.
 	if imgCfg := gjson.GetBytes(rawJSON, "image_config"); imgCfg.Exists() && imgCfg.IsObject() {
 		if ar := imgCfg.Get("aspect_ratio"); ar.Exists() && ar.Type == gjson.String {
diff --git a/internal/translator/gemini/openai/responses/gemini_openai-responses_request.go b/internal/translator/gemini/openai/responses/gemini_openai-responses_request.go
index 3bc2ec98..842758ad 100644
--- a/internal/translator/gemini/openai/responses/gemini_openai-responses_request.go
+++ b/internal/translator/gemini/openai/responses/gemini_openai-responses_request.go
@@ -262,13 +262,7 @@ func ConvertOpenAIResponsesRequestToGemini(modelName string, inputRawJSON []byte
 		}
 	}
 
-	// Image config passthrough (e.g., aspectRatio)
-	// If the input carries generationConfig.imageConfig, preserve it in the Gemini request.
-	if imgCfg := root.Get("generationConfig.imageConfig"); imgCfg.Exists() && imgCfg.IsObject() {
-		out, _ = sjson.SetRaw(out, "generationConfig.imageConfig", imgCfg.Raw)
-	}
-
-	// OpenRouter-style image_config (snake_case) support at top-level
+	// OpenRouter-style image_config support at top-level
 	if imgCfg := root.Get("image_config"); imgCfg.Exists() && imgCfg.IsObject() {
 		if ar := imgCfg.Get("aspect_ratio"); ar.Exists() && ar.Type == gjson.String {
 			out, _ = sjson.Set(out, "generationConfig.imageConfig.aspectRatio", ar.String())