修补选中聊天不更换角色bug

backend/api/route.py

@@ -1,18 +1,20 @@
 from fastapi import APIRouter
 from ..core.items import ChatRequest
 from ..tools.get_all_role_and_chat import get_all_role_and_chat
-from ..tools.save_input_to_json import save_input_to_json
+from ..core.models import chat_history
 
 router = APIRouter()
 
-# 1. 将输入内容持久化存储到本地jsonl方便前端读
-@router.post("/generate_reply")
-async def save_chat_to_json(chat_request: ChatRequest):
-    # 调用实际的保存函数
-    return await save_input_to_json(chat_request)
-
-# 2. 从本地jsonl中读取历史对话
+# 1. 从本地读取所有的data内容
 @router.get("/tool_bar/get_all_role_and_chat")
 def get_all_role_and_chat_endpoint():
     # 正确调用函数并返回结果
     return get_all_role_and_chat()
+
+# 2. 根据rolename和chatname读取特定聊天记录
+@router.post("/chat_box/get_chat_history")
+async def get_chat_history_endpoint(role_name: str, chat_name: str):
+    # 实例化工具类
+    reader = chat_history.load_from_file(role_name, chat_name)
+
+    return reader.to_chatbox_format()