from django.urls import path, register_converter, reverse
from . import kinds
from .views import feeds, lists, perma
from lemoncurry import breadcrumbs as crumbs

register_converter(kinds.EntryKindConverter, "kind")


def to_pat(*args):
    return "^{0}$".format("".join(args))


def prefix(route):
    return app_name + ":" + route


id = r"/(?P<id>\d+)"
kind = r"(?P<kind>{0})".format("|".join(k.plural for k in kinds.all))
page = r"(?:/page/(?P<page>\d+))?"
slug = r"/(?P<slug>[^/]+)"

slug_opt = "(?:" + slug + ")?"

app_name = "entries"
urlpatterns = (
    path("atom", feeds.AtomHomeEntries(), name="atom"),
    path("rss", feeds.RssHomeEntries(), name="rss"),
    path("cats/<slug:slug>", lists.by_cat, name="cat"),
    path("cats/<slug:slug>/page/<int:page>", lists.by_cat, name="cat"),
    path("<kind:kind>", lists.by_kind, name="index"),
    path("<kind:kind>/page/<int:page>", lists.by_kind, name="index"),
    path("<kind:kind>/atom", feeds.AtomByKind(), name="atom_by_kind"),
    path("<kind:kind>/rss", feeds.RssByKind(), name="rss_by_kind"),
    path("<kind:kind>/<int:id>", perma.entry, name="entry"),
    path("<kind:kind>/<int:id>/<slug:slug>", perma.entry, name="entry"),
)


class IndexCrumb(crumbs.Crumb):
    def __init__(self):
        super().__init__(prefix("index"), parent="home:index")

    @property
    def kind(self):
        return self.match.kwargs["kind"]

    @property
    def label(self):
        return self.kind.plural

    @property
    def url(self):
        return reverse(prefix("index"), kwargs={"kind": self.kind})


crumbs.add(prefix("cat"), parent="home:index")
crumbs.add(IndexCrumb())
crumbs.add(prefix("entry"), parent=prefix("index"))