Lars Noack
6e354af0d1
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133 lines
5.1 KiB
Python
133 lines
5.1 KiB
Python
from typing import Tuple, Type, Dict, Set
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from .results import SearchResults
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from ..objects import DatabaseObject, Source
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from ..utils.config import youtube_settings
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from ..utils.enums.source import SourcePages
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from ..utils.support_classes.download_result import DownloadResult
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from ..utils.support_classes.query import Query
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from ..utils.exception.download import UrlNotFoundException
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from ..utils.shared import DEBUG_PAGES
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from ..pages import Page, EncyclopaediaMetallum, Musify, YouTube, YoutubeMusic, Bandcamp, INDEPENDENT_DB_OBJECTS
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ALL_PAGES: Set[Type[Page]] = {
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# EncyclopaediaMetallum,
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Musify,
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YoutubeMusic,
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Bandcamp
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}
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if youtube_settings["use_youtube_alongside_youtube_music"]:
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ALL_PAGES.add(YouTube)
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AUDIO_PAGES: Set[Type[Page]] = {
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Musify,
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YouTube,
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YoutubeMusic,
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Bandcamp
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}
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SHADY_PAGES: Set[Type[Page]] = {
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Musify,
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}
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if DEBUG_PAGES:
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DEBUGGING_PAGE = Bandcamp
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print(f"Only downloading from page {DEBUGGING_PAGE}.")
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ALL_PAGES = {DEBUGGING_PAGE}
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AUDIO_PAGES = ALL_PAGES.union(AUDIO_PAGES)
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class Pages:
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def __init__(self, exclude_pages: Set[Type[Page]] = None, exclude_shady: bool = False) -> None:
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# initialize all page instances
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self._page_instances: Dict[Type[Page], Page] = dict()
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self._source_to_page: Dict[SourcePages, Type[Page]] = dict()
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exclude_pages = exclude_pages if exclude_pages is not None else set()
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if exclude_shady:
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exclude_pages = exclude_pages.union(SHADY_PAGES)
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if not exclude_pages.issubset(ALL_PAGES):
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raise ValueError(f"The excluded pages have to be a subset of all pages: {exclude_pages} | {ALL_PAGES}")
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def _set_to_tuple(page_set: Set[Type[Page]]) -> Tuple[Type[Page], ...]:
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return tuple(sorted(page_set, key=lambda page: page.__name__))
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self._pages_set: Set[Type[Page]] = ALL_PAGES.difference(exclude_pages)
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self.pages: Tuple[Type[Page], ...] = _set_to_tuple(self._pages_set)
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self._audio_pages_set: Set[Type[Page]] = self._pages_set.intersection(AUDIO_PAGES)
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self.audio_pages: Tuple[Type[Page], ...] = _set_to_tuple(self._audio_pages_set)
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for page_type in self.pages:
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self._page_instances[page_type] = page_type()
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self._source_to_page[page_type.SOURCE_TYPE] = page_type
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def search(self, query: Query) -> SearchResults:
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result = SearchResults()
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for page_type in self.pages:
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result.add(
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page=page_type,
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search_result=self._page_instances[page_type].search(query=query)
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)
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return result
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def fetch_details(self, music_object: DatabaseObject, stop_at_level: int = 1) -> DatabaseObject:
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if not isinstance(music_object, INDEPENDENT_DB_OBJECTS):
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return music_object
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for source_page in music_object.source_collection.source_pages:
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if source_page not in self._source_to_page:
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continue
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page_type = self._source_to_page[source_page]
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if page_type in self._pages_set:
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music_object.merge(self._page_instances[page_type].fetch_details(music_object=music_object, stop_at_level=stop_at_level))
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return music_object
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def is_downloadable(self, music_object: DatabaseObject) -> bool:
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_page_types = set(self._source_to_page)
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for src in music_object.source_collection.source_pages:
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if src in self._source_to_page:
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_page_types.add(self._source_to_page[src])
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audio_pages = self._audio_pages_set.intersection(_page_types)
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return len(audio_pages) > 0
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def download(self, music_object: DatabaseObject, genre: str, download_all: bool = False, process_metadata_anyway: bool = False) -> DownloadResult:
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if not isinstance(music_object, INDEPENDENT_DB_OBJECTS):
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return DownloadResult(error_message=f"{type(music_object).__name__} can't be downloaded.")
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self.fetch_details(music_object)
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_page_types = set(self._source_to_page)
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for src in music_object.source_collection.source_pages:
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if src in self._source_to_page:
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_page_types.add(self._source_to_page[src])
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audio_pages = self._audio_pages_set.intersection(_page_types)
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for download_page in audio_pages:
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return self._page_instances[download_page].download(music_object=music_object, genre=genre)
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return DownloadResult(error_message=f"No audio source has been found for {music_object}.")
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def fetch_url(self, url: str, stop_at_level: int = 2) -> Tuple[Type[Page], DatabaseObject]:
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source = Source.match_url(url, SourcePages.MANUAL)
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if source is None:
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raise UrlNotFoundException(url=url)
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_actual_page = self._source_to_page[source.page_enum]
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return _actual_page, self._page_instances[_actual_page].fetch_object_from_source(source=source, stop_at_level=stop_at_level) |