feat: implemented the new page mechanics in the downloader

music_kraken/download/page_attributes.py

@@ -30,31 +30,9 @@ from ..utils.exception import MKMissingNameException
 from ..utils.exception.download import UrlNotFoundException
 from ..utils.shared import DEBUG_PAGES
 
-from ..pages import Page, EncyclopaediaMetallum, Musify, YouTube, YoutubeMusic, Bandcamp, Genius, INDEPENDENT_DB_OBJECTS
+from ..pages import scan_for_pages, get_pages
 
 
-ALL_PAGES: Set[Type[Page]] = {
-    # EncyclopaediaMetallum,
-    Genius,
-    Musify,
-    YoutubeMusic,
-    Bandcamp
-}
-
-if youtube_settings["use_youtube_alongside_youtube_music"]:
-    ALL_PAGES.add(YouTube)
-
-AUDIO_PAGES: Set[Type[Page]] = {
-    Musify,
-    YouTube,
-    YoutubeMusic,
-    Bandcamp
-}
-
-SHADY_PAGES: Set[Type[Page]] = {
-    Musify,
-}
-
 fetch_map = {
     Song: "fetch_song",
     Album: "fetch_album",
@@ -62,66 +40,28 @@ fetch_map = {
     Label: "fetch_label",
 }
 
-if DEBUG_PAGES:
-    DEBUGGING_PAGE = Bandcamp
-    print(f"Only downloading from page {DEBUGGING_PAGE}.")
-
-    ALL_PAGES = {DEBUGGING_PAGE}
-    AUDIO_PAGES = ALL_PAGES.union(AUDIO_PAGES)
-
 
 class Pages:
-    def __init__(self, exclude_pages: Set[Type[Page]] = None, exclude_shady: bool = False, download_options: DownloadOptions = None, fetch_options: FetchOptions = None):
+    def __init__(self, download_options: DownloadOptions = None, fetch_options: FetchOptions = None, **kwargs):
         self.LOGGER = logging.getLogger("download")
         
         self.download_options: DownloadOptions = download_options or DownloadOptions()
         self.fetch_options: FetchOptions = fetch_options or FetchOptions()
 
-        # initialize all page instances
+        scan_for_pages()
-        self._page_instances: Dict[Type[Page], Page] = dict()
-        self._source_to_page: Dict[SourceType, Type[Page]] = dict()
-        
-        exclude_pages = exclude_pages if exclude_pages is not None else set()
-        
-        if exclude_shady:
-            exclude_pages = exclude_pages.union(SHADY_PAGES)
-        
-        if not exclude_pages.issubset(ALL_PAGES):
-            raise ValueError(f"The excluded pages have to be a subset of all pages: {exclude_pages} | {ALL_PAGES}")
-        
-        def _set_to_tuple(page_set: Set[Type[Page]]) -> Tuple[Type[Page], ...]:
-            return tuple(sorted(page_set, key=lambda page: page.__name__))
-        
-        self._pages_set: Set[Type[Page]] = ALL_PAGES.difference(exclude_pages)
-        self.pages: Tuple[Type[Page], ...] = _set_to_tuple(self._pages_set)
-
-        self._audio_pages_set: Set[Type[Page]] = self._pages_set.intersection(AUDIO_PAGES)
-        self.audio_pages: Tuple[Type[Page], ...] = _set_to_tuple(self._audio_pages_set)
-        
-        for page_type in self.pages:
-            self._page_instances[page_type] = page_type(fetch_options=self.fetch_options, download_options=self.download_options)
-            self._source_to_page[page_type.SOURCE_TYPE] = page_type
-
-    def _get_page_from_enum(self, source_page: SourceType) -> Page:
-        if source_page not in self._source_to_page:
-            return None
-        return self._page_instances[self._source_to_page[source_page]]
 
     def search(self, query: Query) -> SearchResults:
         result = SearchResults()
         
-        for page_type in self.pages:
+        for page in get_pages():
             result.add(
-                page=page_type,
+                page=type(page),
-                search_result=self._page_instances[page_type].search(query=query)
+                search_result=page.search(query=query)
             )
             
         return result
     
     def fetch_details(self, data_object: DataObject, stop_at_level: int = 1, **kwargs) -> DataObject:
-        if not isinstance(data_object, INDEPENDENT_DB_OBJECTS):
-            return data_object
-        
         source: Source
         for source in data_object.source_collection.get_sources(source_type_sorting={
             "only_with_page": True,
@@ -317,12 +257,10 @@ class Pages:
         tmp.delete()
         return r
 
-    def fetch_url(self, url: str, stop_at_level: int = 2) -> Tuple[Type[Page], DataObject]:
+    def fetch_url(self, url: str, **kwargs) -> DataObject:
         source = Source.match_url(url, ALL_SOURCE_TYPES.MANUAL)
         
-        if source is None:
+        if source is None or source.page is None:
             raise UrlNotFoundException(url=url)
         
-        _actual_page = self._source_to_page[source.source_type]
+        return source.page.fetch_object_from_source(source=source, **kwargs)
-        
-        return _actual_page, self._page_instances[_actual_page].fetch_object_from_source(source=source, stop_at_level=stop_at_level)