Initial commit: AI Interview System

backend/app/routers/chat.py

@@ -0,0 +1,48 @@
+"""
+文本对话接口（文字面试模式）
+"""
+from fastapi import APIRouter, HTTPException
+from loguru import logger
+
+from app.schemas import ApiResponse, ChatRequest, ChatResponse
+from app.services.coze_service import coze_service
+
+router = APIRouter()
+
+
+@router.post("/chat", response_model=ApiResponse)
+async def chat(request: ChatRequest):
+    """
+    文本对话（文字面试模式）
+    
+    使用 /v3/chat API 与 Chatflow 对话。
+    session_id 通过 user_id 传递，工作流从 USER_INPUT 获取。
+    """
+    try:
+        logger.info(f"Chat request: session_id={request.sessionId}, conv_id={request.conversationId}, message={request.message[:50]}...")
+        
+        # 使用 /v3/chat API（Chatflow 对话）
+        # session_id 作为 user_id 传递，工作流从 {{USER_INPUT}} 获取
+        result = await coze_service.chat(
+            message=request.message,
+            user_id=request.sessionId,  # session_id 作为 user_id
+            conversation_id=request.conversationId,
+        )
+        
+        response_data = ChatResponse(
+            reply=result.get("reply", ""),
+            conversationId=result.get("conversation_id", ""),
+            debugInfo=result.get("debug_info"),
+        )
+        
+        logger.info(f"Chat response: {response_data.reply[:50] if response_data.reply else 'empty'}...")
+        
+        return ApiResponse(
+            code=0,
+            message="success",
+            data=response_data
+        )
+        
+    except Exception as e:
+        logger.error(f"Chat error: {e}")
+        raise HTTPException(status_code=500, detail=str(e))