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CADDesigner-Code-main/web_interface/error_handlers.py

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+"""
+Error handling module.
+"""
+from fastapi import Request
+from fastapi.responses import JSONResponse
+
+from .models import ErrorResponse, ErrorDetail
+
+
+def create_error_response(
+    message: str,
+    error_type: str = "invalid_request",
+    param: str = None,
+    code: str = None,
+    status_code: int = 400,
+) -> JSONResponse:
+    """Create a standard error response."""
+    error_detail = ErrorDetail(message=message, type=error_type, param=param, code=code)
+    error_response = ErrorResponse(error=error_detail)
+    return JSONResponse(status_code=status_code, content=error_response.model_dump())
+
+
+async def not_found_handler(request: Request, exc):
+    """404 error handler."""
+    return create_error_response(
+        message=f"Not found: {request.url.path}",
+        error_type="not_found",
+        status_code=404,
+    )
+
+
+async def internal_error_handler(request: Request, exc):
+    """500 error handler."""
+    return create_error_response(
+        message="Internal server error",
+        error_type="server_error",
+        status_code=500
+    )