from django.conf import settings
from django.utils.decorators import method_decorator
from django.views.decorators.cache import cache_page, never_cache

from drf_spectacular.views import SpectacularJSONAPIView as ParentSpectacularJSONAPIView


@method_decorator(
    cache_page(60 * 60 * 24 * 7) if not settings.DEBUG else never_cache, name="dispatch"
)
class CachedSpectacularJSONAPIView(ParentSpectacularJSONAPIView):
    """
    The spectacular view is cached because it contains a memory leak, and because
    it's quite heavy to generate the JSON spec.

    The cache timeout is set at 7 days because if the user updates to another Baserow
    version, the older cache entries must not be left dangling. The response is only
    cached if settings.DEBUG is False, because it can be confusing for other devs if
    their changes are not applied in the schema.
    """