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"""errors and exceptions."""
from __future__ import annotations
from flask.wrappers import Response
from werkzeug import exceptions
from .wrappers import Limit
class RateLimitExceeded(exceptions.TooManyRequests):
"""Exception raised when a rate limit is hit."""
def __init__(self, limit: Limit, response: Response | None = None) -> None:
"""
:param limit: The actual rate limit that was hit.
Used to construct the default response message
:param response: Optional pre constructed response. If provided
it will be rendered by flask instead of the default error response
of :class:`~werkzeug.exceptions.HTTPException`
"""
self.limit = limit
self.response = response
if limit.error_message:
description = (
limit.error_message
if not callable(limit.error_message)
else limit.error_message()
)
else:
description = str(limit.limit)
super().__init__(description=description, response=response)
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