feat: migrated fetch details and from source

music_kraken/download/page_attributes.py

@@ -1,7 +1,7 @@
-from typing import Tuple, Type, Dict, Set
+from typing import Tuple, Type, Dict, Set, Optional
 
 from .results import SearchResults
-from ..objects import DatabaseObject, Source
+from ..objects import DatabaseObject as DataObject, Source
 
 from ..utils.config import youtube_settings
 from ..utils.enums.source import SourcePages
@@ -34,6 +34,13 @@ SHADY_PAGES: Set[Type[Page]] = {
     Musify,
 }
 
+fetch_map = {
+    Song: "fetch_song",
+    Album: "fetch_album",
+    Artist: "fetch_artist",
+    Label: "fetch_label",
+}
+
 if DEBUG_PAGES:
     DEBUGGING_PAGE = Bandcamp
     print(f"Only downloading from page {DEBUGGING_PAGE}.")
@@ -69,6 +76,11 @@ class Pages:
             self._page_instances[page_type] = page_type()
             self._source_to_page[page_type.SOURCE_TYPE] = page_type
 
+    def _get_page_from_enum(self, source_page: SourcePages) -> 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()
         
@@ -80,22 +92,33 @@ class Pages:
             
         return result
     
-    def fetch_details(self, music_object: DatabaseObject, stop_at_level: int = 1) -> DatabaseObject:
-        if not isinstance(music_object, INDEPENDENT_DB_OBJECTS):
-            return music_object
+    def fetch_details(self, data_object: DataObject, stop_at_level: int = 1) -> DataObject:
+        if not isinstance(data_object, INDEPENDENT_DB_OBJECTS):
+            return data_object
         
-        for source_page in music_object.source_collection.source_pages:
-            if source_page not in self._source_to_page:
-                continue
+        source: Source
+        for source in data_object.source_collection.get_sources():
+            new_data_object = self.fetch_from_source(source=source, stop_at_level=stop_at_level)
+            if new_data_object is not None:
+                data_object.merge(new_data_object)
 
-            page_type = self._source_to_page[source_page]
+        return data_object
 
-            if page_type in self._pages_set:
-                music_object.merge(self._page_instances[page_type].fetch_details(music_object=music_object, stop_at_level=stop_at_level))
+    def fetch_from_source(self, source: Source, **kwargs) -> Optional[DataObject]:
+        page: Page = self._get_page_from_enum(source.page_enum)
+        if page is None:
+            return None
         
-        return music_object
+        source_type = page.get_source_type(source)
+        if not hasattr(page, fetch_map[source_type]):
+            return None
 
-    def is_downloadable(self, music_object: DatabaseObject) -> bool:
+        func = getattr(page, fetch_map[source_type])(source=source, **kwargs)
+        data_object: DataObject = func(source=source)
+        data_object.mark_as_fetched(source.hash_url)
+        return data_object
+
+    def is_downloadable(self, music_object: DataObject) -> bool:
         _page_types = set(self._source_to_page)
         for src in music_object.source_collection.source_pages:
             if src in self._source_to_page:
@@ -104,7 +127,7 @@ class Pages:
         audio_pages = self._audio_pages_set.intersection(_page_types)
         return len(audio_pages) > 0
     
-    def download(self, music_object: DatabaseObject, genre: str, download_all: bool = False, process_metadata_anyway: bool = False) -> DownloadResult:
+    def download(self, music_object: DataObject, genre: str, download_all: bool = False, process_metadata_anyway: bool = False) -> DownloadResult:
         if not isinstance(music_object, INDEPENDENT_DB_OBJECTS):
             return DownloadResult(error_message=f"{type(music_object).__name__} can't be downloaded.")
 
@@ -122,7 +145,7 @@ class Pages:
         
         return DownloadResult(error_message=f"No audio source has been found for {music_object}.")
 
-    def fetch_url(self, url: str, stop_at_level: int = 2) -> Tuple[Type[Page], DatabaseObject]:
+    def fetch_url(self, url: str, stop_at_level: int = 2) -> Tuple[Type[Page], DataObject]:
         source = Source.match_url(url, SourcePages.MANUAL)
         
         if source is None:

music_kraken/objects/__init__.py

@@ -24,4 +24,4 @@ from .parents import OuterProxy
 
 from .artwork import Artwork
 
-DatabaseObject = TypeVar('T', bound=OuterProxy)
+DatabaseObject = OuterProxy

music_kraken/objects/parents.py

@@ -99,7 +99,9 @@ class OuterProxy:
     Wraps the inner data, and provides apis, to naturally access those values.
     """
 
-    _default_factories: dict = {}
+    source_collection: SourceCollection
+
+    _default_factories: dict = {"source_collection": SourceCollection}
     _outer_attribute: Set[str] = {"options", "metadata", "indexing_values", "option_string"}
 
     DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = tuple()

music_kraken/pages/abstract.py

@@ -189,103 +189,7 @@ class Page:
     def song_search(self, song: Song) -> List[Song]:
         return []
 
-    def fetch_details(
-        self, 
-        music_object: DatabaseObject, 
-        stop_at_level: int = 1,
-    ) -> DatabaseObject:
-        """
-        when a music object with lacking data is passed in, it returns
-        the SAME object **(no copy)** with more detailed data.
-        If you for example put in, an album, it fetches the tracklist
-
-        :param music_object:
-        :param stop_at_level: 
-        This says the depth of the level the scraper will recurse to.
-        If this is for example set to 2, then the levels could be:
-        1. Level: the album
-        2. Level: every song of the album + every artist of the album
-        If no additional requests are needed to get the data one level below the supposed stop level
-        this gets ignored
-        :return detailed_music_object: IT MODIFIES THE INPUT OBJ
-        """
-        # creating a new object, of the same type
-        new_music_object: Optional[DatabaseObject] = None
-        fetched_from_url: List[str] = []
-
-        # only certain database objects, have a source list
-        if isinstance(music_object, INDEPENDENT_DB_OBJECTS):
-            source: Source
-            for source in music_object.source_collection.get_sources(self.SOURCE_TYPE):
-                if music_object.already_fetched_from(source.hash_url):
-                    continue
-
-                tmp = self.fetch_object_from_source(
-                    source=source,
-                    enforce_type=type(music_object),
-                    stop_at_level=stop_at_level,
-                    type_string=type(music_object).__name__,
-                    entity_string=music_object.option_string,
-                )
-
-                if new_music_object is None:
-                    new_music_object = tmp
-                else:
-                    new_music_object.merge(tmp)
-                fetched_from_url.append(source.hash_url)
-
-        if new_music_object is not None:
-            music_object.merge(new_music_object)
-
-        music_object.mark_as_fetched(*fetched_from_url)
-        return music_object
-
-    def fetch_object_from_source(
-        self, 
-        source: Source, 
-        stop_at_level: int = 2,
-        enforce_type: Type[DatabaseObject] = None, 
-        type_string: str = "",
-        entity_string: str = "",
-    ) -> Optional[DatabaseObject]:
-
-        obj_type = self.get_source_type(source)
-
-        if obj_type is None:
-            return None
-
-        if enforce_type != obj_type and enforce_type is not None:
-            self.LOGGER.warning(f"Object type isn't type to enforce: {enforce_type}, {obj_type}")
-            return None
-
-        music_object: DatabaseObject = None
-
-        fetch_map = {
-            Song: self.fetch_song,
-            Album: self.fetch_album,
-            Artist: self.fetch_artist,
-            Label: self.fetch_label
-        }
-
-        if obj_type in fetch_map:
-            music_object = fetch_map[obj_type](source, stop_at_level=stop_at_level)
-        else:
-            self.LOGGER.warning(f"Can't fetch details of type: {obj_type}")
-            return None
-
-        if stop_at_level > 0:
-            trace(f"fetching {type_string} [{entity_string}] [stop_at_level={stop_at_level}]")
-
-            collection: Collection
-            for collection_str in music_object.DOWNWARDS_COLLECTION_STRING_ATTRIBUTES:
-                collection = music_object.__getattribute__(collection_str)
-
-                for sub_element in collection:
-                    sub_element.merge(
-                        self.fetch_details(sub_element, stop_at_level=stop_at_level - 1))
-
-        return music_object
-
+    # to fetch stuff
     def fetch_song(self, source: Source, stop_at_level: int = 1) -> Song:
         return Song()