"""
Custom throttle classes for user-related endpoints.
"""

from rest_framework.throttling import AnonRateThrottle, UserRateThrottle


class LoginRateThrottle(AnonRateThrottle):
    """
    Rate limit for login attempts.

    Stricter than general anonymous rate to prevent brute force attacks.
    """
    scope = 'login'


class RegisterRateThrottle(AnonRateThrottle):
    """
    Rate limit for registration attempts.

    Prevents automated account creation and abuse.
    """
    scope = 'register'


class SyncRateThrottle(UserRateThrottle):
    """
    Rate limit for sync endpoint.

    Prevents excessive sync requests that could overload the server.
    """
    scope = 'sync'