"""Plugin platform base classes and registry."""

from abc import ABC, abstractmethod
from typing import List

from django.conf import settings
from django.urls import URLPattern


class Plugin(ABC):
    id: str = ''
    version: str = '1.0.0'
    min_core_version: str = '1.0.0'
    permissions: List[str] = []

    @abstractmethod
    def urlpatterns(self) -> List[URLPattern]:
        pass

    def installed_apps(self) -> List[str]:
        return []


_REGISTRY: dict[str, Plugin] = {}


def register_plugin(plugin: Plugin) -> None:
    _REGISTRY[plugin.id] = plugin


def get_plugin(plugin_id: str) -> Plugin | None:
    return _REGISTRY.get(plugin_id)


def get_enabled_plugins() -> List[Plugin]:
    enabled = getattr(settings, 'ENABLED_PLUGINS', [])
    return [_REGISTRY[pid] for pid in enabled if pid in _REGISTRY]


def plugin_urlpatterns() -> List[URLPattern]:
    from django.urls import path, include

    patterns: List[URLPattern] = []
    for plugin in get_enabled_plugins():
        patterns.append(
            path(f'plugins/{plugin.id}/', include((plugin.urlpatterns(), plugin.id)))
        )
    return patterns