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106 lines
3.4 KiB
Python
106 lines
3.4 KiB
Python
from __future__ import annotations
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import re
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from typing import List, Set, TypeAlias
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from pony import orm
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from ...models import MediaCollection, MediaCollectionLink, MediaElement
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from ..generic import (
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ChangedReport,
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ExtractedDataOnline,
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ExtractedDataOffline,
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SuitableLevel,
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)
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from .base import CollectionExtractor
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DataType: TypeAlias = List[List[MediaElement]]
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class AggregatedCollectionExtractor(CollectionExtractor[DataType]):
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__uri_regex = re.compile(r"^aggregated:///(?P<id>\d+(,\d+)*)")
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@classmethod
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def __get_id(cls, uri: str) -> List[int]:
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m = cls.__uri_regex.search(uri)
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if not m:
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raise Exception(f"Failed to parse aggregated collection uri {uri!r}")
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return [int(i) for i in m.group("id").split(",")]
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@classmethod
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def __get_collections(cls, uri: str) -> List[MediaCollection]:
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aggregate_ids = cls.__get_id(uri)
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colls = [MediaCollection[i] for i in aggregate_ids]
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return colls
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def __init__(self) -> None:
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super().__init__(
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key=".extractor/.aggregated",
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long_name="Aggregated Lists",
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name="aggregated",
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)
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def uri_suitable(self, uri: str) -> SuitableLevel:
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return SuitableLevel.always_or_no(self.__uri_regex.match(uri) is not None)
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def can_extract_offline(self, uri: str) -> bool:
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return True
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def _cache_expired(self, object: MediaCollection) -> bool:
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colls = self.__get_collections(object.primary_uri)
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for c in colls:
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if c.last_updated is None or object.last_updated <= c.last_updated:
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return True
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return False
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def _extract_offline(self, uri: str) -> ExtractedDataOffline[DataType]:
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coll_id = ",".join(str(i) for i in self.__get_id(uri))
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return ExtractedDataOffline[DataType](
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extractor_name=self.name,
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object_key=coll_id,
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object_uri=uri,
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)
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def _extract_online(self, uri: str) -> ExtractedDataOnline[DataType]:
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colls = self.__get_collections(uri)
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coll_id = ",".join(str(c.id) for c in colls)
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return ExtractedDataOnline[DataType](
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extractor_name=self.name,
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object_key=coll_id,
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object_uri=uri,
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data=[
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[
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l.element
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for l in orm.select(l for l in c.media_links).order_by(
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MediaCollectionLink.sort_key
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)
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]
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for c in colls
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],
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)
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def _update_object_raw(
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self,
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object: MediaCollection,
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data: DataType,
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) -> ChangedReport:
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if object.title is None or "[aggregated]" not in object.title:
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object.title = f"[aggregated] {object.primary_uri}"
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object.creator = None
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object.set_watch_in_order_auto(True)
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all_links: Set[int] = set(
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orm.select(link.element.id for link in object.media_links)
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)
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for season, media_list in enumerate(data):
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for episode, media in enumerate(media_list):
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all_links.discard(media.id)
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object.add_episode(
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media=media,
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season=season + 1,
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episode=episode + 1,
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)
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orm.delete(link for link in object.media_links if link.element.id in all_links)
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object.set_as_only_uri(object.primary_uri)
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return ChangedReport.ChangedSome # TODO improve
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