From 4e301c1fcf4a0b6e2e797acaa3169d5ff4fe92f5 Mon Sep 17 00:00:00 2001
From: zhaoqingang <zhaoqg0118@163.com>
Date: 星期三, 08 一月 2025 13:50:52 +0800
Subject: [PATCH] sse

---
 app/service/v2/chat.py |   77 ++++++++++++++++++++++++++++++++------
 1 files changed, 64 insertions(+), 13 deletions(-)

diff --git a/app/service/v2/chat.py b/app/service/v2/chat.py
index df8cb0f..982ed43 100644
--- a/app/service/v2/chat.py
+++ b/app/service/v2/chat.py
@@ -1,19 +1,70 @@
+import json
+
+from Log import logger
+from app.config.agent_base_url import RG_CHAT_DIALOG
+from app.config.config import settings
+from app.config.const import max_chunk_size
+from app.models.v2.session_model import ChatSessionDao
+from app.service.v2.app_driver.chat_dialog import ChatDialog
 
 
-async def service_chat_dialog(question: str, session_id: str):
-
-    if session_id:
-        ...
-
-
-
+async def service_chat_dialog(db, chat_id:str, question: str, session_id: str, user_id):
+    token = "ragflow-YzMzE1NDRjYzMyZjExZWY5ZjkxMDI0Mm"
+    url = settings.fwr_base_url+RG_CHAT_DIALOG.format(chat_id)
+    chat = ChatDialog(token)
+    request_data = {
+        "question": question,
+        "stream": True,
+        "session_id": session_id
+    }
+    headers = {
+        'Content-Type': 'application/json',
+        'Authorization': f"Bearer {token}"
+    }
     try:
-        for ans in chat(dia, msg, True, **req):
-
-            yield "data:" + json.dumps({"code": 0, "message": "", "data": ans}, ensure_ascii=False) + "\n\n"
-        ConversationService.update_by_id(conv.id, conv.to_dict())
+        await ChatSessionDao(db).update_or_insert_by_id(
+            session_id=session_id,
+            name=question[:255],
+            agent_id=chat_id,
+            agent_type=1,
+            tenant_id=user_id,
+            message={"role": "user", "content": question},
+            conversation_id=session_id,
+            event_type="message"
+        )
     except Exception as e:
-        yield "data:" + json.dumps({"code": 500, "message": str(e),
+        logger.error(e)
+    try:
+        message = {"role": "assistant","answer":"", "reference": {}}
+        async for ans in chat.chat_completions(url, request_data, headers):
+            if ans.get("code", None) == 102:
+                error = ans.get("message", "璇疯緭鍏ヤ綘鐨勯棶棰橈紒")
+                data = {"answer":error}
+                event = "message"
+            else:
+                if isinstance(ans.get("data"), bool) and ans.get("data") is True:
+                    data = {}
+                    event = "message_end"
+                else:
+                    data = ans.get("data", {})
+                    message = ans.get("data", {})
+                    event = "message"
+            message_str = "data: " + json.dumps({"event": event, "data": data}, ensure_ascii=False) + "\n\n"
+            for i in range(0, len(message_str), max_chunk_size):
+                chunk = message_str[i:i + max_chunk_size]
+                # print(chunk)
+                yield chunk  # 鍙戦�佸垎鍧楁秷鎭�
+        await ChatSessionDao(db).update_session_by_id(
+            session_id=session_id,
+            session=None,
+            message=message
+        )
+    except Exception as e:
+        logger.error(e)
+        yield "data: " + json.dumps({"message": "message",
                                     "data": {"answer": "**ERROR**: " + str(e), "reference": []}},
                                    ensure_ascii=False) + "\n\n"
-    yield "data:" + json.dumps({"code": 0, "message": "", "data": True}, ensure_ascii=False) + "\n\n"
\ No newline at end of file
+
+        yield "data: " + json.dumps({"message": "message_end",
+                                    "data": {}},
+                                   ensure_ascii=False) + "\n\n"
\ No newline at end of file

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