init

services/app_errors.py

@@ -0,0 +1,30 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from enum import Enum
+from typing import Any, Dict, Optional
+
+
+class ErrorCode(str, Enum):
+    INVALID_WORKFLOW_TYPE = "INVALID_WORKFLOW_TYPE"
+    SQL_GENERATION_FAILED = "SQL_GENERATION_FAILED"
+    TABLE_MATCH_FAILED = "TABLE_MATCH_FAILED"
+    SQL_EXECUTION_FAILED = "SQL_EXECUTION_FAILED"
+    RAGFLOW_RETRIEVE_FAILED = "RAGFLOW_RETRIEVE_FAILED"
+    CONFIG_INVALID = "CONFIG_INVALID"
+    INTERNAL_ERROR = "INTERNAL_ERROR"
+
+
+@dataclass
+class AppError(Exception):
+    code: ErrorCode
+    message: str
+    status_code: int = 500
+    detail: Optional[Dict[str, Any]] = None
+
+    def to_dict(self) -> Dict[str, Any]:
+        return {
+            "code": self.code.value,
+            "message": self.message,
+            "detail": self.detail or {},
+        }