From 0ca6af14e07ad38244a49761b7139e26308e97c9 Mon Sep 17 00:00:00 2001
From: Ace Data Cloud Dev <dev@acedata.cloud>
Date: Mon, 13 Apr 2026 00:47:38 +0800
Subject: [PATCH] feat(chat): add tool-calling event support for aichat2

Update chat models and operator to support aichat2's tool-calling SSE
events. This prepares the data layer for the tool-calling UI components
(ToolCallBlock, ArtifactBlock, ThinkingBlock) added in PR #427.

Changes:
- IChatConversationResponse: add type, tool_id, tool_name,
  tool_display_name, input, output, is_error, duration_ms, content
- IChatConversationRequest: add tools_enabled, tools_filter
- chatOperator stream callback: forward all tool-calling event fields
---
 src/models/chat.ts    | 12 ++++++++++++
 src/operators/chat.ts | 12 +++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/src/models/chat.ts b/src/models/chat.ts
index ed151c29b..a5f2589c2 100644
--- a/src/models/chat.ts
+++ b/src/models/chat.ts
@@ -136,12 +136,24 @@ export interface IChatConversationRequest {
   messages?: IChatMessage[];
   action?: IChatConversationAction;
   model: IChatModelName;
+  tools_enabled?: boolean;
+  tools_filter?: string[];
 }
 
 export interface IChatConversationResponse {
   answer: string;
   delta_answer: string;
   id?: string;
+  // aichat2 tool-calling event fields
+  type?: string;
+  tool_id?: string;
+  tool_name?: string;
+  tool_display_name?: string;
+  input?: Record<string, unknown>;
+  output?: string;
+  is_error?: boolean;
+  duration_ms?: number;
+  content?: string;
 }
 
 export interface IChatConversationsResponse {
diff --git a/src/operators/chat.ts b/src/operators/chat.ts
index 8b136420c..39edcac98 100644
--- a/src/operators/chat.ts
+++ b/src/operators/chat.ts
@@ -79,7 +79,17 @@ class ChatOperator {
                   options.stream({
                     answer: finalAnswer,
                     delta_answer: json.delta_answer || '',
-                    id
+                    id,
+                    // Forward aichat2 event types for tool-calling UI
+                    type: json.type,
+                    tool_id: json.tool_id,
+                    tool_name: json.tool_name,
+                    tool_display_name: json.tool_display_name,
+                    input: json.input,
+                    output: json.output,
+                    is_error: json.is_error,
+                    duration_ms: json.duration_ms,
+                    content: json.content
                   });
                 }
               } catch (err) {