feat: removed legacy key

Reviewed-on: #38

.vscode/settings.json

@@ -25,6 +25,7 @@
         "encyclopaedia",
         "ENDC",
         "Gitea",
+        "iframe",
         "isrc",
         "levenshtein",
         "metallum",

development/actual_donwload.py

@@ -6,8 +6,9 @@ logging.getLogger().setLevel(logging.DEBUG)
 
 if __name__ == "__main__":
     commands = [
-        "s: #a Crystal F",
-        "d: 20",
+        "s: #a I'm in a coffin",
+        "0",
+        "d: 0",
     ]
 
     

development/objects_collection.py

@@ -13,7 +13,7 @@ if __name__ == "__main__":
 
     song_2 = Song(
         title = "song",
-        main_artist_list=[other_artist]
+        artist_list=[other_artist]
     )
 
     other_artist.name = "main_artist"
@@ -21,5 +21,5 @@ if __name__ == "__main__":
     song_1.merge(song_2)
 
     print("#" * 120)
-    print("main", *song_1.main_artist_collection)
+    print("main", *song_1.artist_collection)
     print("feat", *song_1.feature_artist_collection)

music_kraken/audio/codec.py

@@ -10,12 +10,12 @@ from ..objects import Target
 LOGGER = logging_settings["codex_logger"]
 
 
-def correct_codec(target: Target, bitrate_kb: int = main_settings["bitrate"], audio_format: str = main_settings["audio_format"], interval_list: List[Tuple[float, float]] = None):
+def correct_codec(target: Target, bitrate_kb: int = main_settings["bitrate"], audio_format: str = main_settings["audio_format"], skip_intervals: List[Tuple[float, float]] = None):
     if not target.exists:
         LOGGER.warning(f"Target doesn't exist: {target.file_path}")
         return
     
-    interval_list = interval_list or []
+    skip_intervals = skip_intervals or []
 
     bitrate_b = int(bitrate_kb / 1024)
 
@@ -29,7 +29,7 @@ def correct_codec(target: Target, bitrate_kb: int = main_settings["bitrate"], au
     
     start = 0
     next_start = 0
-    for end, next_start in interval_list:
+    for end, next_start in skip_intervals:
         aselect_list.append(f"between(t,{start},{end})")
         start = next_start
     aselect_list.append(f"gte(t,{next_start})")

music_kraken/cli/main_downloader.py

@@ -178,8 +178,6 @@ class Downloader:
         page_count = 0
         for option in self.current_results.formatted_generator():
             if isinstance(option, Option):
-                _downloadable = self.pages.is_downloadable(option.music_object)
-
                 r = f"{BColors.GREY.value}{option.index:0{self.option_digits}}{BColors.ENDC.value} {option.music_object.option_string}"
                 print(r)
             else:
@@ -228,7 +226,7 @@ class Downloader:
             if album is not None:
                 song.album_collection.append(album)
             if artist is not None:
-                song.main_artist_collection.append(artist)
+                song.artist_collection.append(artist)
             return Query(raw_query=query, music_object=song)
 
         if album is not None:
@@ -319,7 +317,7 @@ class Downloader:
 
         for database_object in data_objects:
             r = self.pages.download(
-                music_object=database_object, 
+                data_object=database_object, 
                 genre=self.genre, 
                 **kwargs
             )
@@ -356,37 +354,41 @@ class Downloader:
                 command, query = _[0], ":".join(_[1:])
 
             do_search = "s" in command
+            do_fetch = "f" in command
             do_download = "d" in command
             do_merge = "m" in command
 
-            if do_search and do_download:
-                raise MKInvalidInputException(message="You can't search and download at the same time.")
-
-            if do_search and do_merge:
-                raise MKInvalidInputException(message="You can't search and merge at the same time.")
+            if do_search and (do_download or do_fetch or do_merge):
+                raise MKInvalidInputException(message="You can't search and do another operation at the same time.")
 
             if do_search:
                 self.search(":".join(input_str.split(":")[1:]))
                 return False
 
-            indices = []
-            for possible_index in query.split(","):
-                possible_index = possible_index.strip()
-                if possible_index == "":
-                    continue
-                
-                i = 0
-                try:
-                    i = int(possible_index)
-                except ValueError:
-                    raise MKInvalidInputException(message=f"The index \"{possible_index}\" is not a number.")
+            def get_selected_objects(q: str):
+                if q.strip().lower() == "all":
+                    return list(self.current_results)
 
-                if i < 0 or i >= len(self.current_results):
-                    raise MKInvalidInputException(message=f"The index \"{i}\" is not within the bounds of 0-{len(self.current_results) - 1}.")
-                
-                indices.append(i)
+                indices = []
+                for possible_index in q.split(","):
+                    possible_index = possible_index.strip()
+                    if possible_index == "":
+                        continue
+                    
+                    i = 0
+                    try:
+                        i = int(possible_index)
+                    except ValueError:
+                        raise MKInvalidInputException(message=f"The index \"{possible_index}\" is not a number.")
 
-            selected_objects = [self.current_results[i] for i in indices]
+                    if i < 0 or i >= len(self.current_results):
+                        raise MKInvalidInputException(message=f"The index \"{i}\" is not within the bounds of 0-{len(self.current_results) - 1}.")
+                    
+                    indices.append(i)
+
+                return [self.current_results[i] for i in indices]
+
+            selected_objects = get_selected_objects(query)
 
             if do_merge:
                 old_selected_objects = selected_objects
@@ -399,6 +401,13 @@ class Downloader:
 
                 selected_objects = [a]
 
+            if do_fetch:
+                for data_object in selected_objects:
+                    self.pages.fetch_details(data_object)
+
+                self.print_current_options()
+                return False
+
             if do_download:
                 self.download(selected_objects)
                 return False

music_kraken/connection/cache.py

@@ -6,6 +6,7 @@ from typing import List, Optional
 from functools import lru_cache
 import logging
 
+from ..utils import output, BColors
 from ..utils.config import main_settings
 from ..utils.string_processing import fit_to_file_system
 
@@ -204,9 +205,12 @@ class Cache:
         for path in self._dir.iterdir():
             if path.is_dir():
                 for file in path.iterdir():
+                    output(f"Deleting file {file}", color=BColors.GREY)
                     file.unlink()
+                output(f"Deleting folder {path}", color=BColors.HEADER)
                 path.rmdir()
             else:
+                output(f"Deleting folder {path}", color=BColors.HEADER)
                 path.unlink()
 
         self.cached_attributes.clear()

music_kraken/connection/connection.py

@@ -317,7 +317,7 @@ class Connection:
             name = kwargs.pop("description")
 
         if progress > 0:
-            headers = dict() if headers is None else headers
+            headers = kwargs.get("headers", dict())
             headers["Range"] = f"bytes={target.size}-"
 
         r = self.request(
@@ -366,6 +366,7 @@ class Connection:
             if retry:
                 self.LOGGER.warning(f"Retrying stream...")
                 accepted_response_codes.add(206)
+                stream_kwargs["progress"] = progress
                 return Connection.stream_into(**stream_kwargs)
 
             return DownloadResult()

music_kraken/download/__init__.py

@@ -1,4 +1,5 @@
 from dataclasses import dataclass, field
+from typing import Set
 
 from ..utils.config import main_settings
 from ..utils.enums.album import AlbumType

music_kraken/download/page_attributes.py

@@ -2,6 +2,7 @@ from typing import Tuple, Type, Dict, Set, Optional, List
 from collections import defaultdict
 from pathlib import Path
 import re
+import logging
 
 from . import FetchOptions, DownloadOptions
 from .results import SearchResults
@@ -16,10 +17,12 @@ from ..objects import (
     Artist,
     Label,
 )
+from ..audio import write_metadata_to_target, correct_codec
+from ..utils import output, BColors
 from ..utils.string_processing import fit_to_file_system
 from ..utils.config import youtube_settings, main_settings
 from ..utils.path_manager import LOCATIONS
-from ..utils.enums import SourceType
+from ..utils.enums import SourceType, ALL_SOURCE_TYPES
 from ..utils.support_classes.download_result import DownloadResult
 from ..utils.support_classes.query import Query
 from ..utils.support_classes.download_result import DownloadResult
@@ -68,6 +71,8 @@ if DEBUG_PAGES:
 
 class Pages:
     def __init__(self, exclude_pages: Set[Type[Page]] = None, exclude_shady: bool = False, download_options: DownloadOptions = None, fetch_options: FetchOptions = None):
+        self.LOGGER = logging.getLogger("download")
+        
         self.download_options: DownloadOptions = download_options or DownloadOptions()
         self.fetch_options: FetchOptions = fetch_options or FetchOptions()
 
@@ -117,7 +122,9 @@ class Pages:
             return data_object
         
         source: Source
-        for source in data_object.source_collection.get_sources():
+        for source in data_object.source_collection.get_sources(source_type_sorting={
+            "only_with_page": True,
+        }):
             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)
@@ -125,36 +132,27 @@ class Pages:
         return data_object
 
     def fetch_from_source(self, source: Source, **kwargs) -> Optional[DataObject]:
-        page: Page = self._get_page_from_enum(source.source_type)
-        if page is None:
+        if not source.has_page:
             return None
         
-        # getting the appropriate function for the page and the object type
-        source_type = page.get_source_type(source)
-        if not hasattr(page, fetch_map[source_type]):
+        source_type = source.page.get_source_type(source=source)
+        if source_type is None:
+            self.LOGGER.debug(f"Could not determine source type for {source}.")
             return None
-        func = getattr(page, fetch_map[source_type])(source=source, **kwargs)
+
+        func = getattr(source.page, fetch_map[source_type])
         
         # fetching the data object and marking it as fetched
-        data_object: DataObject = func(source=source)
+        data_object: DataObject = func(source=source, **kwargs)
         data_object.mark_as_fetched(source.hash_url)
         return data_object
 
     def fetch_from_url(self, url: str) -> Optional[DataObject]:
-        source = Source.match_url(url, SourceType.MANUAL)
+        source = Source.match_url(url, ALL_SOURCE_TYPES.MANUAL)
         if source is None:
             return None
         
         return self.fetch_from_source(source=source)
-
-    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:
-                _page_types.add(self._source_to_page[src])
-
-        audio_pages = self._audio_pages_set.intersection(_page_types)
-        return len(audio_pages) > 0
     
     def _skip_object(self, data_object: DataObject) -> bool:
         if isinstance(data_object, Album):
@@ -166,6 +164,7 @@ class Pages:
     def download(self, data_object: DataObject, genre: str, **kwargs) -> DownloadResult:
         # fetch the given object
         self.fetch_details(data_object)
+        output(f"\nDownloading {data_object.option_string}...", color=BColors.BOLD)
         
         # fetching all parent objects (e.g. if you only download a song)
         if not kwargs.get("fetched_upwards", False):
@@ -188,7 +187,7 @@ class Pages:
         
         # download all children
         download_result: DownloadResult = DownloadResult()
-        for c in data_object.get_children():
+        for c in data_object.get_child_collections():
             for d in c:
                 if self._skip_object(d):
                     continue
@@ -205,7 +204,7 @@ class Pages:
 
             self._download_song(data_object, naming={
                 "genre": [genre],
-                "audio_format": main_settings["audio_format"],
+                "audio_format": [main_settings["audio_format"]],
             })
 
         return download_result
@@ -222,12 +221,7 @@ class Pages:
 
             path_template = path_template.replace(f"{{{field}}}", naming[field][0])
 
-        return possible_parts
-
-    def _get_pages_with_source(self, data_object: DataObject, sort_by_attribute: str = "DOWNLOAD_PRIORITY") -> List[Page]:
-        pages = [self._get_page_from_enum(s.source_type) for s in data_object.source_collection.get_sources()]
-        pages.sort(key=lambda p: getattr(p, sort_by_attribute), reverse=True)
-        return list(pages)
+        return path_template
 
     def _download_song(self, song: Song, naming: dict) -> DownloadOptions:
         """
@@ -241,23 +235,22 @@ class Pages:
         
         # manage the naming
         naming: Dict[str, List[str]] = defaultdict(list, naming)
-        naming["song"].append(song.title_string)
-        naming["genre"].append(song.genre)
+        naming["song"].append(song.title_value)
         naming["isrc"].append(song.isrc)
-        naming["album"].extend(a.title_string for a in song.album_collection)
+        naming["album"].extend(a.title_value for a in song.album_collection)
         naming["album_type"].extend(a.album_type.value for a in song.album_collection)
-        naming["artist"].extend(a.name for a in song.main_artist_collection)
+        naming["artist"].extend(a.name for a in song.artist_collection)
         naming["artist"].extend(a.name for a in song.feature_artist_collection)
         for a in song.album_collection:
-            naming["label"].extend([l.title_string for l in a.label_collection])
+            naming["label"].extend([l.title_value for l in a.label_collection])
         # removing duplicates from the naming, and process the strings
         for key, value in naming.items():
             # https://stackoverflow.com/a/17016257
-            naming[key] = list(dict.fromkeys(items))
+            naming[key] = list(dict.fromkeys(value))
+        song.genre = naming["genre"][0]
 
         # manage the targets
         tmp: Target = Target.temp(file_extension=main_settings["audio_format"])
-        found_on_disc = False
 
         song.target_collection.append(Target(
             relative_to_music_dir=True,
@@ -267,24 +260,64 @@ class Pages:
             )
         ))
         for target in song.target_collection:
-            if target.exists():
-                output(f'- {target.file_path} {BColors.OKGREEN.value}[already exists]', color=BColors.GREY)
-
-                found_on_disc = True
+            if target.exists:
+                output(f'{target.file_path} {BColors.OKGREEN.value}[already exists]', color=BColors.GREY)
                 r.found_on_disk += 1
-                target.copy_content(tmp)
+
+                if not self.download_options.download_again_if_found:
+                    target.copy_content(tmp)
             else:
-                target.create_parent_directories()
-                output(f'- {target.file_path}', color=BColors.GREY)
+                target.create_path()
+                output(f'{target.file_path}', color=BColors.GREY)
 
-        # actually download
-        for page in self._get_pages_with_source(song, sort_by_attribute="DOWNLOAD_PRIORITY"):
-            r = page.download_song_to_target(song, tmp, r)
+        # this streams from every available source until something succeeds, setting the skip intervals to the values of the according source
+        used_source: Optional[Source] = None
+        skip_intervals: List[Tuple[float, float]] = []
+        for source in song.source_collection.get_sources(source_type_sorting={
+            "only_with_page": True,
+            "sort_key": lambda page: page.download_priority,
+            "reverse": True,
+        }):
+            if tmp.exists:
+                break
 
+            used_source = source
+            streaming_results = source.page.download_song_to_target(source=source, target=tmp, desc="download")
+            skip_intervals = source.page.get_skip_intervals(song=song, source=source)
+
+            # if something has been downloaded but it somehow failed, delete the file
+            if streaming_results.is_fatal_error and tmp.exists:
+                tmp.delete()
+
+        # if everything went right, the file should exist now
+        if not tmp.exists:
+            if used_source is None:
+                r.error_message = f"No source found for {song.option_string}."
+            else:
+                r.error_message = f"Something went wrong downloading {song.option_string}."
+            return r
+
+        # post process the audio
+        found_on_disk = used_source is None
+        if not found_on_disk or self.download_options.process_audio_if_found:
+            correct_codec(target=tmp, skip_intervals=skip_intervals)
+            r.sponsor_segments = len(skip_intervals)
+
+        if used_source is not None:
+            used_source.page.post_process_hook(song=song, temp_target=tmp)
+
+        if not found_on_disk or self.download_options.process_metadata_if_found:
+            write_metadata_to_target(metadata=song.metadata, target=tmp, song=song)
+
+        # copy the tmp target to the final locations
+        for target in song.target_collection:
+            tmp.copy_content(target)
+
+        tmp.delete()
         return r
 
     def fetch_url(self, url: str, stop_at_level: int = 2) -> Tuple[Type[Page], DataObject]:
-        source = Source.match_url(url, SourceType.MANUAL)
+        source = Source.match_url(url, ALL_SOURCE_TYPES.MANUAL)
         
         if source is None:
             raise UrlNotFoundException(url=url)

music_kraken/download/results.py

@@ -2,7 +2,6 @@ from typing import Tuple, Type, Dict, List, Generator, Union
 from dataclasses import dataclass
 
 from ..objects import DatabaseObject
-from ..utils.enums.source import SourceType
 from ..pages import Page, EncyclopaediaMetallum, Musify
 
 

music_kraken/objects/collection.py

@@ -115,13 +115,6 @@ class Collection(Generic[T]):
         self._data.append(other)
         other._inner._is_in_collection.add(self)
 
-        # all of the existing hooks to get the defined datastructures
-        for collection_attribute, generator in self.extend_object_to_attribute.items():
-            other.__getattribute__(collection_attribute).extend(generator, **kwargs)
-
-        for attribute, new_object in self.append_object_to_attribute.items():
-            other.__getattribute__(attribute).append(new_object, **kwargs)
-
         for attribute, a in self.sync_on_append.items():
             # syncing two collections by reference
             b = other.__getattribute__(attribute)
@@ -141,6 +134,13 @@ class Collection(Generic[T]):
 
             a.extend(b_data, **kwargs)
 
+        # all of the existing hooks to get the defined datastructures
+        for collection_attribute, generator in self.extend_object_to_attribute.items():
+            other.__getattribute__(collection_attribute).extend(generator, **kwargs)
+
+        for attribute, new_object in self.append_object_to_attribute.items():
+            other.__getattribute__(attribute).append(new_object, **kwargs)
+
     def append(self, other: Optional[T], **kwargs):
         """
         If an object, that represents the same entity exists in a relevant collection,
@@ -160,6 +160,7 @@ class Collection(Generic[T]):
 
         object_trace(f"Appending {other.option_string} to {self}")
 
+
         # switching collection in the case of push to
         for c in self.push_to:
             r = c._find_object(other)

music_kraken/objects/formatted_text.py

@@ -38,8 +38,13 @@ class FormattedText:
     def markdown(self) -> str:
         return md(self.html).strip()
 
+    @property
+    def plain(self) -> str:
+        md = self.markdown
+        return md.replace("\n\n", "\n")
+
     def __str__(self) -> str:
         return self.markdown
 
-    plaintext = markdown
+    plaintext = plain
     

music_kraken/objects/lyrics.py

@@ -34,6 +34,6 @@ class Lyrics(OuterProxy):
     @property
     def metadata(self) -> Metadata:
         return Metadata({
-            id3Mapping.UNSYNCED_LYRICS: [self.text.markdown]
+            id3Mapping.UNSYNCED_LYRICS: [self.text.plaintext]
         })
 

music_kraken/objects/parents.py

@@ -8,6 +8,7 @@ from typing import Optional, Dict, Tuple, List, Type, Generic, Any, TypeVar, Set
 from pathlib import Path
 import inspect
 
+from .source import SourceCollection
 from .metadata import Metadata
 from ..utils import get_unix_time, object_trace, generate_id
 from ..utils.config import logging_settings, main_settings
@@ -338,6 +339,10 @@ class OuterProxy:
     def title_string(self) -> str:
         return str(self.__getattribute__(self.TITEL)) + (f" {self.id}" if DEBUG_PRINT_ID else "")
 
+    @property
+    def title_value(self) -> str:
+        return str(self.__getattribute__(self.TITEL))
+
     def __repr__(self):
         return f"{type(self).__name__}({self.title_string})"
 

music_kraken/objects/song.py

@@ -95,7 +95,7 @@ class Song(Base):
     target_collection: Collection[Target]
     lyrics_collection: Collection[Lyrics]
 
-    main_artist_collection: Collection[Artist]
+    artist_collection: Collection[Artist]
     feature_artist_collection: Collection[Artist]
     album_collection: Collection[Album]
 
@@ -107,8 +107,8 @@ class Song(Base):
         "lyrics_collection": Collection,
         "artwork": Artwork,
 
-        "main_artist_collection": Collection,
         "album_collection": Collection,
+        "artist_collection": Collection,
         "feature_artist_collection": Collection,
 
         "title": lambda: None,
@@ -129,7 +129,7 @@ class Song(Base):
         source_list: List[Source] = None,
         target_list: List[Target] = None, 
         lyrics_list: List[Lyrics] = None,
-        main_artist_list: List[Artist] = None, 
+        artist_list: List[Artist] = None, 
         feature_artist_list: List[Artist] = None,
         album_list: List[Album] = None, 
         tracksort: int = 0, 
@@ -141,27 +141,27 @@ class Song(Base):
 
         Base.__init__(**real_kwargs)
 
-    UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("main_artist_collection", "feature_artist_collection", "album_collection")
+    UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("artist_collection", "feature_artist_collection", "album_collection")
     TITEL = "title"
 
     def __init_collections__(self) -> None:
+        self.feature_artist_collection.push_to = [self.artist_collection]
+        self.artist_collection.pull_from = [self.feature_artist_collection]
+
         self.album_collection.sync_on_append = {
-            "artist_collection": self.main_artist_collection,
+            "artist_collection": self.artist_collection,
         }
 
         self.album_collection.append_object_to_attribute = {
             "song_collection": self,
         }
-        self.main_artist_collection.extend_object_to_attribute = {
-            "main_album_collection": self.album_collection
+        self.artist_collection.extend_object_to_attribute = {
+            "album_collection": self.album_collection
         }
-        self.feature_artist_collection.append_object_to_attribute = {
-            "feature_song_collection": self
+        self.feature_artist_collection.extend_object_to_attribute = {
+            "album_collection": self.album_collection
         }
 
-        self.feature_artist_collection.push_to = [self.main_artist_collection]
-        self.main_artist_collection.pull_from = [self.feature_artist_collection]
-
     def _add_other_db_objects(self, object_type: Type[OuterProxy], object_list: List[OuterProxy]):
         if object_type is Song:
             return
@@ -203,14 +203,14 @@ class Song(Base):
 
         # metadata.merge_many([s.get_song_metadata() for s in self.source_collection])  album sources have no relevant metadata for id3
         metadata.merge_many([a.metadata for a in self.album_collection])
-        metadata.merge_many([a.metadata for a in self.main_artist_collection])
+        metadata.merge_many([a.metadata for a in self.artist_collection])
         metadata.merge_many([a.metadata for a in self.feature_artist_collection])
         metadata.merge_many([lyrics.metadata for lyrics in self.lyrics_collection])
 
         return metadata
 
     def get_artist_credits(self) -> str:
-        main_artists = ", ".join([artist.name for artist in self.main_artist_collection])
+        main_artists = ", ".join([artist.name for artist in self.artist_collection])
         feature_artists = ", ".join([artist.name for artist in self.feature_artist_collection])
 
         if len(feature_artists) == 0:
@@ -219,10 +219,11 @@ class Song(Base):
 
     @property
     def option_string(self) -> str:
-        r = OPTION_FOREGROUND.value + self.title_string + BColors.ENDC.value + OPTION_BACKGROUND.value
+        r = "song "
+        r += OPTION_FOREGROUND.value + self.title_string + BColors.ENDC.value + OPTION_BACKGROUND.value
         r += get_collection_string(self.album_collection, " from {}", ignore_titles={self.title})
-        r += get_collection_string(self.main_artist_collection, " by {}")
-        r += get_collection_string(self.feature_artist_collection, " feat. {}")
+        r += get_collection_string(self.artist_collection, " by {}")
+        r += get_collection_string(self.feature_artist_collection, " feat. {}" if len(self.artist_collection) > 0 else " by {}")
         return r
 
     @property
@@ -237,11 +238,6 @@ class Song(Base):
         return f"{self.tracksort}/{len(self.album_collection[0].song_collection) or 1}"
 
 
-"""
-All objects dependent on Album
-"""
-
-
 class Album(Base):
     title: str
     unified_title: str
@@ -255,8 +251,9 @@ class Album(Base):
 
     source_collection: SourceCollection
 
-    artist_collection: Collection[Artist]
     song_collection: Collection[Song]
+    artist_collection: Collection[Artist]
+    feature_artist_collection: Collection[Artist]
     label_collection: Collection[Label]
 
     _default_factories = {
@@ -272,8 +269,10 @@ class Album(Base):
         "notes": FormattedText,
 
         "source_collection": SourceCollection,
-        "artist_collection": Collection,
+
         "song_collection": Collection,
+        "artist_collection": Collection,
+        "feature_artist_collection": Collection,
         "label_collection": Collection,
     }
 
@@ -306,15 +305,18 @@ class Album(Base):
     UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("label_collection", "artist_collection")
 
     def __init_collections__(self):
+        self.feature_artist_collection.push_to = [self.artist_collection]
+        self.artist_collection.pull_from = [self.feature_artist_collection]
+
         self.song_collection.append_object_to_attribute = {
             "album_collection": self
         }
         self.song_collection.sync_on_append = {
-            "main_artist_collection": self.artist_collection
+            "artist_collection": self.artist_collection
         }
 
         self.artist_collection.append_object_to_attribute = {
-            "main_album_collection": self
+            "album_collection": self
         }
         self.artist_collection.extend_object_to_attribute = {
             "label_collection": self.label_collection
@@ -368,8 +370,11 @@ class Album(Base):
 
     @property
     def option_string(self) -> str:
-        r = OPTION_FOREGROUND.value + self.title_string + BColors.ENDC.value + OPTION_BACKGROUND.value
+        r = "album "
+        r += OPTION_FOREGROUND.value + self.title_string + BColors.ENDC.value + OPTION_BACKGROUND.value
         r += get_collection_string(self.artist_collection, " by {}")
+        if len(self.artist_collection) <= 0:
+            r += get_collection_string(self.feature_artist_collection, " by {}")
         r += get_collection_string(self.label_collection, " under {}")
 
         if len(self.song_collection) > 0:
@@ -379,6 +384,7 @@ class Album(Base):
     def _compile(self):
         self.analyze_implied_album_type()
         self.update_tracksort()
+        self.fix_artist_collection()
 
     def analyze_implied_album_type(self):
         # if the song collection has only one song, it is reasonable to assume that it is a single
@@ -420,6 +426,16 @@ class Album(Base):
                 tracksort_map[i] = existing_list.pop(0)
                 tracksort_map[i].tracksort = i
 
+    def fix_artist_collection(self):
+        """
+        I add artists, that could only be feature artists to the feature artist collection.
+        They get automatically moved to main artist collection, if a matching artist exists in the main artist collection or is appended to it later on.
+        If I am not sure for any artist, I try to analyze the most common artist in the song collection of one album.
+        """
+
+        # move all artists that are in all feature_artist_collections, of every song, to the artist_collection
+        pass
+
     @property
     def copyright(self) -> str:
         if self.date is None:
@@ -464,8 +480,7 @@ class Artist(Base):
     source_collection: SourceCollection
     contact_collection: Collection[Contact]
 
-    feature_song_collection: Collection[Song]
-    main_album_collection: Collection[Album]
+    album_collection: Collection[Album]
     label_collection: Collection[Label]
 
     _default_factories = {
@@ -479,8 +494,7 @@ class Artist(Base):
         "general_genre": lambda: "",
 
         "source_collection": SourceCollection,
-        "feature_song_collection": Collection,
-        "main_album_collection": Collection,
+        "album_collection": Collection,
         "contact_collection": Collection,
         "label_collection": Collection,
     }
@@ -501,7 +515,7 @@ class Artist(Base):
         source_list: List[Source] = None,
         contact_list: List[Contact] = None, 
         feature_song_list: List[Song] = None,
-        main_album_list: List[Album] = None, 
+        album_list: List[Album] = None, 
         label_list: List[Label] = None, 
         **kwargs
     ) -> None:
@@ -511,18 +525,14 @@ class Artist(Base):
         Base.__init__(**real_kwargs)
 
 
-    DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = ("main_album_collection", "feature_song_collection")
+    DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = ("album_collection",)
     UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("label_collection",)
 
     def __init_collections__(self):
-        self.feature_song_collection.append_object_to_attribute = {
+        self.album_collection.append_object_to_attribute = {
             "feature_artist_collection": self
         }
 
-        self.main_album_collection.append_object_to_attribute = {
-            "artist_collection": self
-        }
-
         self.label_collection.append_object_to_attribute = {
             "current_artist_collection": self
         }
@@ -530,14 +540,13 @@ class Artist(Base):
     def _add_other_db_objects(self, object_type: Type[OuterProxy], object_list: List[OuterProxy]):
         if object_type is Song:
             # this doesn't really make sense
-            # self.feature_song_collection.extend(object_list)
             return
 
         if object_type is Artist:
             return
 
         if object_type is Album:
-            self.main_album_collection.extend(object_list)
+            self.album_collection.extend(object_list)
             return
 
         if object_type is Label:
@@ -550,7 +559,7 @@ class Artist(Base):
     def update_albumsort(self):
         """
         This updates the albumsort attributes, of the albums in
-        `self.main_album_collection`, and sorts the albums, if possible.
+        `self.album_collection`, and sorts the albums, if possible.
 
         It is advised to only call this function, once all the albums are
         added to the artist.
@@ -568,7 +577,7 @@ class Artist(Base):
 
         # order albums in the previously defined section
         album: Album
-        for album in self.main_album_collection:
+        for album in self.album_collection:
             sections[type_section[album.album_type]].append(album)
 
         def sort_section(_section: List[Album], last_albumsort: int) -> int:
@@ -599,7 +608,7 @@ class Artist(Base):
             album_list.extend(sections[section_index])
 
         # replace the old collection with the new one
-        self.main_album_collection._data = album_list
+        self.album_collection._data = album_list
 
     INDEX_DEPENDS_ON = ("name", "source_collection", "contact_collection")
     @property
@@ -621,15 +630,14 @@ class Artist(Base):
 
     @property
     def option_string(self) -> str:
-        r = OPTION_FOREGROUND.value + self.title_string + BColors.ENDC.value + OPTION_BACKGROUND.value
+        r = "artist "
+        r += OPTION_FOREGROUND.value + self.title_string + BColors.ENDC.value + OPTION_BACKGROUND.value
         r += get_collection_string(self.label_collection, " under {}")
         
         r += OPTION_BACKGROUND.value
-        if len(self.main_album_collection) > 0:
-            r += f" with {len(self.main_album_collection)} albums"
+        if len(self.album_collection) > 0:
+            r += f" with {len(self.album_collection)} albums"
         
-        if len(self.feature_song_collection) > 0:
-            r += f" featured in {len(self.feature_song_collection)} songs"
         r += BColors.ENDC.value
 
         return r
@@ -716,4 +724,4 @@ class Label(Base):
 
     @property
     def option_string(self):
-        return OPTION_FOREGROUND.value + self.name + BColors.ENDC.value
+        return "label " + OPTION_FOREGROUND.value + self.name + BColors.ENDC.value

music_kraken/objects/source.py

@@ -2,19 +2,31 @@ from __future__ import annotations
 
 from collections import defaultdict
 from enum import Enum
-from typing import List, Dict, Set, Tuple, Optional, Iterable, Generator
+from typing import (
+    List, 
+    Dict, 
+    Set, 
+    Tuple, 
+    Optional, 
+    Iterable, 
+    Generator, 
+    TypedDict, 
+    Callable, 
+    Any,
+    TYPE_CHECKING
+)
 from urllib.parse import urlparse, ParseResult
 from dataclasses import dataclass, field
 from functools import cached_property
 
 from ..utils import generate_id
-from ..utils.enums import SourceType
+from ..utils.enums import SourceType, ALL_SOURCE_TYPES
 from ..utils.config import youtube_settings
 from ..utils.string_processing import hash_url, shorten_display_url
 
 from .metadata import Mapping, Metadata
-from .parents import OuterProxy
-from .collection import Collection
+if TYPE_CHECKING:
+    from ..pages.abstract import Page
 
 
 
@@ -29,10 +41,6 @@ class Source:
 
     def __post_init__(self):
         self.referrer_page = self.referrer_page or self.source_type
-    
-    @property
-    def parsed_url(self) -> ParseResult:
-        return urlparse(self.url)
 
     @classmethod
     def match_url(cls, url: str, referrer_page: SourceType) -> Optional[Source]:
@@ -44,38 +52,50 @@ class Source:
         url = parsed_url.geturl()
         
         if "musify" in parsed_url.netloc:
-            return cls(SourceType.MUSIFY, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.MUSIFY, url, referrer_page=referrer_page)
 
         if parsed_url.netloc in [_url.netloc for _url in youtube_settings['youtube_url']]:
-            return cls(SourceType.YOUTUBE, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.YOUTUBE, url, referrer_page=referrer_page)
 
         if url.startswith("https://www.deezer"):
-            return cls(SourceType.DEEZER, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.DEEZER, url, referrer_page=referrer_page)
         
         if url.startswith("https://open.spotify.com"):
-            return cls(SourceType.SPOTIFY, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.SPOTIFY, url, referrer_page=referrer_page)
 
         if "bandcamp" in url:
-            return cls(SourceType.BANDCAMP, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.BANDCAMP, url, referrer_page=referrer_page)
 
         if "wikipedia" in parsed_url.netloc:
-            return cls(SourceType.WIKIPEDIA, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.WIKIPEDIA, url, referrer_page=referrer_page)
 
         if url.startswith("https://www.metal-archives.com/"):
-            return cls(SourceType.ENCYCLOPAEDIA_METALLUM, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.ENCYCLOPAEDIA_METALLUM, url, referrer_page=referrer_page)
 
         # the less important once
         if url.startswith("https://www.facebook"):
-            return cls(SourceType.FACEBOOK, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.FACEBOOK, url, referrer_page=referrer_page)
 
         if url.startswith("https://www.instagram"):
-            return cls(SourceType.INSTAGRAM, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.INSTAGRAM, url, referrer_page=referrer_page)
 
         if url.startswith("https://twitter"):
-            return cls(SourceType.TWITTER, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.TWITTER, url, referrer_page=referrer_page)
 
         if url.startswith("https://myspace.com"):
-            return cls(SourceType.MYSPACE, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.MYSPACE, url, referrer_page=referrer_page)
+
+    @property
+    def has_page(self) -> bool:
+        return self.source_type.page is not None
+    
+    @property
+    def page(self) -> Page:
+        return self.source_type.page
+
+    @property
+    def parsed_url(self) -> ParseResult:
+        return urlparse(self.url)
 
     @property
     def hash_url(self) -> str:
@@ -99,27 +119,72 @@ class Source:
     page_str = property(fget=lambda self: self.source_type.value)
 
 
+class SourceTypeSorting(TypedDict):
+    sort_key: Callable[[SourceType], Any]
+    reverse: bool
+    only_with_page: bool
+
+
 class SourceCollection:
     __change_version__ = generate_id()
 
     _indexed_sources: Dict[str, Source]
-    _page_to_source_list: Dict[SourceType, List[Source]]
+    _sources_by_type: Dict[SourceType, List[Source]]
 
     def __init__(self, data: Optional[Iterable[Source]] = None, **kwargs):
-        self._page_to_source_list = defaultdict(list)
+        self._sources_by_type = defaultdict(list)
         self._indexed_sources = {}
 
         self.extend(data or [])
 
-    def has_source_page(self, *source_pages: SourceType) -> bool:
-        return any(source_page in self._page_to_source_list for source_page in source_pages)
+    def source_types(
+        self, 
+        only_with_page: bool = False, 
+        sort_key = lambda page: page.name, 
+        reverse: bool = False
+    ) -> Iterable[SourceType]:
+        """
+        Returns a list of all source types contained in this source collection.
 
-    def get_sources(self, *source_pages: List[Source]) -> Generator[Source]:
-        if not len(source_pages):
-            source_pages = self.source_pages
+        Args:
+            only_with_page (bool, optional): If True, only returns source types that have a page, meaning you can download from them.
+            sort_key (function, optional): A function that defines the sorting key for the source types. Defaults to lambda page: page.name.
+            reverse (bool, optional): If True, sorts the source types in reverse order. Defaults to False.
 
-        for page in source_pages:
-            yield from self._page_to_source_list[page]
+        Returns:
+            Iterable[SourceType]: A list of source types.
+        """
+
+        source_types: List[SourceType] = self._sources_by_type.keys()
+        if only_with_page:
+            source_types = filter(lambda st: st.has_page, source_types)
+
+        return sorted(
+            source_types, 
+            key=sort_key, 
+            reverse=reverse
+        )
+
+    def get_sources(self, *source_types: List[SourceType], source_type_sorting: SourceTypeSorting = None) -> Generator[Source]:
+            """
+            Retrieves sources based on the provided source types and source type sorting.
+
+            Args:
+                *source_types (List[Source]): Variable number of source types to filter the sources.
+                source_type_sorting (SourceTypeSorting): Sorting criteria for the source types. This is only relevant if no source types are provided.
+
+            Yields:
+                Generator[Source]: A generator that yields the sources based on the provided filters.
+
+            Returns:
+                None
+            """
+            if not len(source_types):
+                source_type_sorting = source_type_sorting or {}
+                source_types = self.source_types(**source_type_sorting)
+
+            for source_type in source_types:
+                yield from self._sources_by_type[source_type]
 
     def append(self, source: Source):
         if source is None:
@@ -135,7 +200,7 @@ class SourceCollection:
             existing_source.__merge__(source)
             source = existing_source
         else:
-            self._page_to_source_list[source.source_type].append(source)
+            self._sources_by_type[source.source_type].append(source)
 
         changed = False
         for key in source.indexing_values:
@@ -156,10 +221,6 @@ class SourceCollection:
     def __merge__(self, other: SourceCollection, **kwargs):
         self.extend(other)
         
-    @property
-    def source_pages(self) -> Iterable[SourceType]:
-        return sorted(self._page_to_source_list.keys(), key=lambda page: page.value)
-
     @property
     def hash_url_list(self) -> List[str]:
         return [hash_url(source.url) for source in self.get_sources()]
@@ -170,7 +231,7 @@ class SourceCollection:
 
     @property
     def homepage_list(self) -> List[str]:
-        return [source.homepage for source in self.source_pages]
+        return [source_type.homepage for source_type in self._sources_by_type.keys()]
 
     def indexing_values(self) -> Generator[Tuple[str, str], None, None]:
         for index in self._indexed_sources:

music_kraken/pages/abstract.py

@@ -49,15 +49,16 @@ class DownloadOptions:
 
 class Page:
     SOURCE_TYPE: SourceType
-    LOGGER: LOGGER
+    LOGGER: logging.Logger
 
     def __new__(cls, *args, **kwargs):
-        cls.SOURCE_TYPE.register_page(cls)
         cls.LOGGER = logging.getLogger(cls.__name__)
 
         return super().__new__(cls)
 
     def __init__(self, download_options: DownloadOptions = None, fetch_options: FetchOptions = None):
+        self.SOURCE_TYPE.register_page(self)
+        
         self.download_options: DownloadOptions = download_options or DownloadOptions()
         self.fetch_options: FetchOptions = fetch_options or FetchOptions()
 
@@ -145,153 +146,7 @@ class Page:
     def fetch_label(self, source: Source, stop_at_level: int = 1) -> Label:
         return Label()
 
-    def download(
-        self, 
-        music_object: DatabaseObject, 
-        genre: str, 
-    ) -> DownloadResult:
-        naming_dict: NamingDict = NamingDict({"genre": genre})
-
-        def fill_naming_objects(naming_music_object: DatabaseObject):
-            nonlocal naming_dict
-
-            for collection_name in naming_music_object.UPWARDS_COLLECTION_STRING_ATTRIBUTES:
-                collection: Collection = getattr(naming_music_object, collection_name)
-
-                if collection.empty:
-                    continue
-                
-                dom_ordered_music_object: DatabaseObject = collection[0]
-                naming_dict.add_object(dom_ordered_music_object)
-                return fill_naming_objects(dom_ordered_music_object)
-
-        fill_naming_objects(music_object)
-
-        return self._download(music_object, naming_dict)
-
-    def _download(
-        self, 
-        music_object: DatabaseObject, 
-        naming_dict: NamingDict, 
-        **kwargs
-    ) -> DownloadResult:
-        if isinstance(music_object, Song):
-            output(f"Downloading {music_object.option_string} to:", color=BColors.BOLD)
-        else:
-            output(f"Downloading {music_object.option_string}...", color=BColors.BOLD)
-
-        # Skips all releases, that are defined in shared.ALBUM_TYPE_BLACKLIST, if download_all is False
-        if isinstance(music_object, Album):
-            if not self.download_options.download_all and music_object.album_type in self.download_options.album_type_blacklist:
-                return DownloadResult()
-
-        if not (isinstance(music_object, Song) and self.NO_ADDITIONAL_DATA_FROM_SONG):
-            self.fetch_details(music_object=music_object, stop_at_level=1)
-
-        if isinstance(music_object, Album):
-            music_object.update_tracksort()
-            
-        naming_dict.add_object(music_object)
-
-        if isinstance(music_object, Song):
-            return self._download_song(music_object, naming_dict)
-
-        download_result: DownloadResult = DownloadResult()
-
-        for collection_name in music_object.DOWNWARDS_COLLECTION_STRING_ATTRIBUTES:
-            collection: Collection = getattr(music_object, collection_name)
-
-            sub_ordered_music_object: DatabaseObject
-            for sub_ordered_music_object in collection:
-                download_result.merge(self._download(sub_ordered_music_object, naming_dict.copy()))
-
-        return download_result
-
-    def _download_song(self, song: Song, naming_dict: NamingDict):
-        song.compile()
-        if "genre" not in naming_dict and song.genre is not None:
-            naming_dict["genre"] = song.genre
-
-        if song.genre is None:
-            song.genre = naming_dict["genre"]
-
-        path_parts = Formatter().parse(main_settings["download_path"])
-        file_parts = Formatter().parse(main_settings["download_file"])
-        new_target = Target(
-            relative_to_music_dir=True,
-            file_path=Path(
-                main_settings["download_path"].format(**{part[1]: naming_dict[part[1]] for part in path_parts}),
-                main_settings["download_file"].format(**{part[1]: naming_dict[part[1]] for part in file_parts})
-            )
-        )
-
-        if song.target_collection.empty:
-            song.target_collection.append(new_target)
-
-        r = DownloadResult(1)
-        temp_target: Target = Target.temp(file_extension=main_settings["audio_format"])
-
-        found_on_disc = False
-        target: Target
-        for target in song.target_collection:
-            current_exists = target.exists
-
-            if current_exists:
-                output(f'- {target.file_path} {BColors.OKGREEN.value}[already exists]', color=BColors.GREY)
-                target.copy_content(temp_target)
-                found_on_disc = True
-
-                r.found_on_disk += 1
-                r.add_target(target)
-            else:
-                output(f'- {target.file_path}', color=BColors.GREY)
-
-        if not song.source_collection.has_source_page(self.SOURCE_TYPE):
-            return DownloadResult(error_message=f"No {self.__class__.__name__} source found for {song.option_string}.")
-
-        sources = song.source_collection.get_sources(self.SOURCE_TYPE)
-
-        skip_intervals = []
-        if not found_on_disc:
-            for source in sources:
-                r = self.download_song_to_target(source=source, target=temp_target, desc="downloading")
-
-                if not r.is_fatal_error:
-                    skip_intervals = self.get_skip_intervals(song, source)
-                    break
-        
-        if temp_target.exists:
-            r.merge(self._post_process_targets(
-                song=song, 
-                temp_target=temp_target,
-                interval_list=skip_intervals,
-                found_on_disc=found_on_disc,
-            ))
-
-        return r
-
-    def _post_process_targets(self, song: Song, temp_target: Target, interval_list: List, found_on_disc: bool) -> DownloadResult:
-        if not found_on_disc or self.download_options.process_audio_if_found:
-            correct_codec(temp_target, interval_list=interval_list)
-
-        self.post_process_hook(song, temp_target)
-
-        if not found_on_disc or self.download_options.process_metadata_if_found:
-            write_metadata_to_target(song.metadata, temp_target, song)
-
-        r = DownloadResult()
-
-        target: Target
-        for target in song.target_collection:
-            if temp_target is not target:
-                temp_target.copy_content(target)
-            r.add_target(target)
-
-        temp_target.delete()
-        r.sponsor_segments += len(interval_list)
-
-        return r
-
+    # to download stuff
     def get_skip_intervals(self, song: Song, source: Source) -> List[Tuple[float, float]]:
         return []
 

music_kraken/pages/bandcamp.py

@@ -51,7 +51,6 @@ class BandcampTypes(Enum):
 
 class Bandcamp(Page):
     SOURCE_TYPE = ALL_SOURCE_TYPES.BANDCAMP
-    LOGGER = logging_settings["bandcamp_logger"]
 
     def __init__(self, *args, **kwargs):
         self.connection: Connection = Connection(
@@ -63,8 +62,7 @@ class Bandcamp(Page):
         super().__init__(*args, **kwargs)
 
     def get_source_type(self, source: Source) -> Optional[Type[DatabaseObject]]:
-        parsed_url = urlparse(source.url)
-        path = parsed_url.path.replace("/", "")
+        path = source.parsed_url.path.replace("/", "")
 
         if path == "" or path.startswith("music"):
             return Artist
@@ -119,7 +117,7 @@ class Bandcamp(Page):
             return Song(
                 title=clean_song_title(name, artist_name=data["band_name"]),
                 source_list=source_list,
-                main_artist_list=[
+                artist_list=[
                     Artist(
                         name=data["band_name"],
                         source_list=[
@@ -239,7 +237,7 @@ class Bandcamp(Page):
         html_music_grid = soup.find("ol", {"id": "music-grid"})
         if html_music_grid is not None:
             for subsoup in html_music_grid.find_all("li"):
-                artist.main_album_collection.append(self._parse_album(soup=subsoup, initial_source=source))
+                artist.album_collection.append(self._parse_album(soup=subsoup, initial_source=source))
 
         for i, data_blob_soup in enumerate(soup.find_all("div", {"id": ["pagedata", "collectors-data"]})):
             data_blob = data_blob_soup["data-blob"]
@@ -248,7 +246,7 @@ class Bandcamp(Page):
                 dump_to_file(f"bandcamp_artist_data_blob_{i}.json", data_blob, is_json=True, exit_after_dump=False)
 
             if data_blob is not None:
-                artist.main_album_collection.extend(
+                artist.album_collection.extend(
                     self._parse_artist_data_blob(json.loads(data_blob), source.url)
                 )
 
@@ -372,7 +370,7 @@ class Bandcamp(Page):
                 date=ID3Timestamp.strptime(data["datePublished"], "%d %b %Y %H:%M:%S %Z"),
                 source_list=[Source(self.SOURCE_TYPE, album_data["@id"])]
             )],
-            main_artist_list=[Artist(
+            artist_list=[Artist(
                 name=artist_data["name"].strip(),
                 source_list=[Source(self.SOURCE_TYPE, _parse_artist_url(artist_data["@id"]))]
             )],

music_kraken/pages/encyclopaedia_metallum.py

@@ -7,7 +7,7 @@ from urllib.parse import urlparse, urlencode
 from ..connection import Connection
 from ..utils.config import logging_settings
 from .abstract import Page
-from ..utils.enums.source import SourceType
+from ..utils.enums import SourceType, ALL_SOURCE_TYPES
 from ..utils.enums.album import AlbumType
 from ..utils.support_classes.query import Query
 from ..objects import (
@@ -52,14 +52,14 @@ def _song_from_json(artist_html=None, album_html=None, release_type=None, title=
 
     return Song(
         title=title,
-        main_artist_list=[
+        artist_list=[
             _artist_from_json(artist_html=artist_html)
         ],
         album_list=[
             _album_from_json(album_html=album_html, release_type=release_type, artist_html=artist_html)
         ],
         source_list=[
-            Source(SourceType.ENCYCLOPAEDIA_METALLUM, song_id)
+            Source(ALL_SOURCE_TYPES.ENCYCLOPAEDIA_METALLUM, song_id)
         ]
     )
 
@@ -85,7 +85,7 @@ def _artist_from_json(artist_html=None, genre=None, country=None) -> Artist:
     return Artist(
         name=artist_name,
         source_list=[
-            Source(SourceType.ENCYCLOPAEDIA_METALLUM, artist_url)
+            Source(ALL_SOURCE_TYPES.ENCYCLOPAEDIA_METALLUM, artist_url)
         ]
     )
 
@@ -105,7 +105,7 @@ def _album_from_json(album_html=None, release_type=None, artist_html=None) -> Al
         title=album_name,
         album_type=album_type,
         source_list=[
-            Source(SourceType.ENCYCLOPAEDIA_METALLUM, album_url)
+            Source(ALL_SOURCE_TYPES.ENCYCLOPAEDIA_METALLUM, album_url)
         ],
         artist_list=[
             _artist_from_json(artist_html=artist_html)
@@ -207,7 +207,7 @@ def create_grid(
 
 
 class EncyclopaediaMetallum(Page):
-    SOURCE_TYPE = SourceType.ENCYCLOPAEDIA_METALLUM
+    SOURCE_TYPE = ALL_SOURCE_TYPES.ENCYCLOPAEDIA_METALLUM
     LOGGER = logging_settings["metal_archives_logger"]
     
     def __init__(self, **kwargs):
@@ -266,7 +266,7 @@ class EncyclopaediaMetallum(Page):
 
         song_title = song.title.strip()
         album_titles = ["*"] if song.album_collection.empty else [album.title.strip() for album in song.album_collection]
-        artist_titles = ["*"] if song.main_artist_collection.empty else [artist.name.strip() for artist in song.main_artist_collection]
+        artist_titles = ["*"] if song.artist_collection.empty else [artist.name.strip() for artist in song.artist_collection]
 
 
         search_results = []
@@ -663,7 +663,7 @@ class EncyclopaediaMetallum(Page):
             artist.notes = band_notes
 
         discography: List[Album] = self._fetch_artist_discography(artist_id)
-        artist.main_album_collection.extend(discography)
+        artist.album_collection.extend(discography)
 
         return artist
 

music_kraken/pages/musify.py

@@ -502,9 +502,18 @@ class Musify(Page):
         for video_container in video_container_list:
             iframe_list: List[BeautifulSoup] = video_container.findAll("iframe")
             for iframe in iframe_list:
+                """
+                the url could look like this
+                https://www.youtube.com/embed/sNObCkhzOYA?si=dNVgnZMBNVlNb0P_
+                """
+                parsed_url = urlparse(iframe["src"])
+                path_parts = parsed_url.path.strip("/").split("/")
+                if path_parts[0] != "embed" or len(path_parts) < 2:
+                    continue
+                
                 source_list.append(Source(
-                    SourceType.YOUTUBE,
-                    iframe["src"],
+                    ALL_SOURCE_TYPES.YOUTUBE,
+                    f"https://music.youtube.com/watch?v={path_parts[1]}",
                     referrer_page=self.SOURCE_TYPE
                 ))
         
@@ -1045,7 +1054,7 @@ class Musify(Page):
             if not self.fetch_options.download_all and album.album_type in self.fetch_options.album_type_blacklist:
                 continue
 
-            artist.main_album_collection.append(album)
+            artist.album_collection.append(album)
 
     def fetch_artist(self, source: Source, **kwargs) -> Artist:
         """

music_kraken/pages/youtube.py

@@ -41,8 +41,6 @@ class YouTube(SuperYouTube):
     # CHANGE
     SOURCE_TYPE = ALL_SOURCE_TYPES.YOUTUBE
 
-    NO_ADDITIONAL_DATA_FROM_SONG = False
-
     def __init__(self, *args, **kwargs):
         self.connection: Connection = Connection(
             host=get_invidious_url(),
@@ -145,7 +143,7 @@ class YouTube(SuperYouTube):
                 self.SOURCE_TYPE, get_invidious_url(path="/watch", query=f"v={data['videoId']}")
             )],
             notes=FormattedText(html=data["descriptionHtml"] + f"\n<p>{license_str}</ p>" ),
-            main_artist_list=artist_list
+            artist_list=artist_list
         ), int(data["published"])
 
     def fetch_song(self, source: Source, stop_at_level: int = 1) -> Song:
@@ -286,7 +284,7 @@ class YouTube(SuperYouTube):
             self.LOGGER.warning(f"didn't found any playlists with piped, falling back to invidious. (it is unusual)")
             album_list, artist_name = self.fetch_invidious_album_list(parsed.id)
         
-        return Artist(name=artist_name, main_album_list=album_list, source_list=[source])
+        return Artist(name=artist_name, album_list=album_list, source_list=[source])
 
     def download_song_to_target(self, source: Source, target: Target, desc: str = None) -> DownloadResult:
         """

music_kraken/pages/youtube_music/_list_render.py

@@ -58,6 +58,19 @@ def music_responsive_list_item_renderer(renderer: dict) -> List[DatabaseObject]:
         song.album_collection.extend(album_list)
         return [song]
 
+    if len(album_list) == 1:
+        album = album_list[0]
+        album.artist_collection.extend(artist_list)
+        album.song_collection.extend(song_list)
+        return [album]
+
+    """
+    if len(artist_list) == 1:
+        artist = artist_list[0]
+        artist.main_album_collection.extend(album_list)
+        return [artist]
+    """
+
     return results
 
 

music_kraken/pages/youtube_music/youtube_music.py

@@ -22,20 +22,22 @@ from ...utils import get_current_millis, traverse_json_path
 
 from ...utils import dump_to_file
 
-from ...objects import Source, DatabaseObject, ID3Timestamp, Artwork
 from ..abstract import Page
 from ...objects import (
-    Artist,
+    DatabaseObject as DataObject,
     Source,
-    SourceType,
+    FormattedText,
+    ID3Timestamp,
+    Artwork,
+    Artist,
     Song,
     Album,
     Label,
     Target,
     Lyrics,
-    FormattedText
 )
 from ...connection import Connection
+from ...utils.enums import SourceType, ALL_SOURCE_TYPES
 from ...utils.enums.album import AlbumType
 from ...utils.support_classes.download_result import DownloadResult
 
@@ -176,8 +178,7 @@ ALBUM_TYPE_MAP = {
 
 class YoutubeMusic(SuperYouTube):
     # CHANGE
-    SOURCE_TYPE = SourceType.YOUTUBE_MUSIC
-    LOGGER = logging_settings["youtube_music_logger"]
+    SOURCE_TYPE = ALL_SOURCE_TYPES.YOUTUBE
 
     def __init__(self, *args, ydl_opts: dict = None, **kwargs):
         self.yt_music_connection: YoutubeMusicConnection = YoutubeMusicConnection(
@@ -348,10 +349,10 @@ class YoutubeMusic(SuperYouTube):
             default='{}'
         )) or {}
 
-    def get_source_type(self, source: Source) -> Optional[Type[DatabaseObject]]:
+    def get_source_type(self, source: Source) -> Optional[Type[DataObject]]:
         return super().get_source_type(source)
 
-    def general_search(self, search_query: str) -> List[DatabaseObject]:
+    def general_search(self, search_query: str) -> List[DataObject]:
         search_query = search_query.strip()
 
         urlescaped_query: str = quote(search_query.strip().replace(" ", "+"))
@@ -548,6 +549,11 @@ class YoutubeMusic(SuperYouTube):
         return album
 
     def fetch_lyrics(self, video_id: str, playlist_id: str = None) -> str:
+        """
+        1. fetches the tabs of a song, to get the browse id
+        2. finds the browse id of the lyrics
+        3. fetches the lyrics with the browse id
+        """
         request_data = {
             "context": {**self.credentials.context, "adSignalsInfo": {"params": []}},
             "videoId": video_id,
@@ -574,7 +580,8 @@ class YoutubeMusic(SuperYouTube):
             pageType = traverse_json_path(tab, "tabRenderer.endpoint.browseEndpoint.browseEndpointContextSupportedConfigs.browseEndpointContextMusicConfig.pageType", default="")
             if pageType in ("MUSIC_TAB_TYPE_LYRICS", "MUSIC_PAGE_TYPE_TRACK_LYRICS") or "lyrics" in pageType.lower():
                 browse_id = traverse_json_path(tab, "tabRenderer.endpoint.browseEndpoint.browseId", default=None)
-                break
+                if browse_id is not None:
+                    break
 
         if browse_id is None:
             return None
@@ -588,6 +595,8 @@ class YoutubeMusic(SuperYouTube):
             },
             name=f"fetch_song_lyrics_{video_id}.json"
         )
+        if r is None:
+            return None
 
         dump_to_file(f"fetch_song_lyrics_{video_id}.json", r.text, is_json=True, exit_after_dump=False)
 
@@ -619,7 +628,7 @@ class YoutubeMusic(SuperYouTube):
             Artist(
                 name=name,
                 source_list=[Source(
-                    SourceType.YOUTUBE_MUSIC, 
+                    self.SOURCE_TYPE, 
                     f"https://music.youtube.com/channel/{ydl_res.get('channel_id', ydl_res.get('uploader_id', ''))}"
             )]
         ) for name in artist_names]
@@ -638,9 +647,9 @@ class YoutubeMusic(SuperYouTube):
             album_list=album_list,
             length=int(ydl_res.get("duration", 0)) * 1000,
             artwork=Artwork(*ydl_res.get("thumbnails", [])),
-            main_artist_list=artist_list,
+            artist_list=artist_list,
             source_list=[Source(
-                SourceType.YOUTUBE_MUSIC,
+                self.SOURCE_TYPE,
                 f"https://music.youtube.com/watch?v={ydl_res.get('id')}"
             ), source],
         )
@@ -718,7 +727,6 @@ class YoutubeMusic(SuperYouTube):
 
         self.download_values_by_url[source.url] = {
             "url": _best_format.get("url"),
-            "chunk_size": _best_format.get("downloader_options", {}).get("http_chunk_size", main_settings["chunk_size"]),
             "headers": _best_format.get("http_headers", {}),
         }
 

music_kraken/utils/config/config_files/main_config.py

@@ -19,7 +19,7 @@ config = Config((
 You can use Audio formats which support ID3.2 and ID3.1,
 but you will have cleaner Metadata using ID3.2."""),
 
-    Attribute(name="result_history", default_value=False, description="""If enabled, you can go back to the previous results.
+    Attribute(name="result_history", default_value=True, description="""If enabled, you can go back to the previous results.
 The consequence is a higher meory consumption, because every result is saved."""),
     Attribute(name="history_length", default_value=8, description="""You can choose how far back you can go in the result history.
 The further you choose to be able to go back, the higher the memory usage.

music_kraken/utils/enums/__init__.py

@@ -14,10 +14,11 @@ class SourceType:
     page_type: Type[Page] = None
     page: Page = None
 
+    def register_page(self, page: Page):
+        self.page = page
 
-    def register_page(self, page_type: Type[Page]):
-        self.page_type = page
-        self.page = page_type()
+    def __hash__(self):
+        return hash(self.name)
 
     @property
     def has_page(self) -> bool:

music_kraken/utils/shared.py

@@ -12,10 +12,10 @@ if not load_dotenv(Path(__file__).parent.parent.parent / ".env"):
 
 __stage__ = os.getenv("STAGE", "prod")
 
-DEBUG = (__stage__ == "dev") and False
+DEBUG = (__stage__ == "dev") and True
 DEBUG_LOGGING = DEBUG and False
 DEBUG_TRACE = DEBUG and True
-DEBUG_OBJECT_TRACE = DEBUG and False
+DEBUG_OBJECT_TRACE = DEBUG and True
 DEBUG_OBJECT_TRACE_CALLSTACK = DEBUG_OBJECT_TRACE and False
 DEBUG_YOUTUBE_INITIALIZING = DEBUG and False
 DEBUG_PAGES = DEBUG and False

music_kraken/utils/support_classes/query.py

@@ -24,7 +24,7 @@ class Query:
             return [self.music_object.name]
         
         if isinstance(self.music_object, Song):
-            return [f"{artist.name} - {self.music_object}" for artist in self.music_object.main_artist_collection]
+            return [f"{artist.name} - {self.music_object}" for artist in self.music_object.artist_collection]
         
         if isinstance(self.music_object, Album):
             return [f"{artist.name} - {self.music_object}" for artist in self.music_object.artist_collection]

tests/test_collection.py

@@ -3,96 +3,98 @@ import unittest
 from music_kraken.objects import Song, Album, Artist, Collection, Country
 
 class TestCollection(unittest.TestCase):
-    @staticmethod
-    def complicated_object() -> Artist:
-        return Artist(
-            name="artist",
-            country=Country.by_alpha_2("DE"),
-            main_album_list=[
-                Album(
-                    title="album",
-                    song_list=[
-                        Song(
-                            title="song",
-                            album_list=[
-                                Album(title="album", albumsort=123),
-                            ],
-                        ),
-                        Song(
-                            title="other_song",
-                            album_list=[
-                                Album(title="album", albumsort=423),
-                            ],
-                        ),
-                    ]
-                ),
-                Album(title="album", barcode="1234567890123"),
+    def test_song_contains_album(self):
+        """
+        Tests that every song contains the album it is added to in its album_collection
+        """
+
+        a_1 = Album(
+            title="album",
+            song_list= [
+                Song(title="song"),
             ]
         )
+        a_2 = a_1.song_collection[0].album_collection[0]
+        self.assertTrue(a_1.id == a_2.id)
 
-    def test_song_album_relation(self):
+    def test_album_contains_song(self):
         """
-        Tests that
-        album = album.any_song.one_album
-        is the same object
+        Tests that every album contains the song it is added to in its song_collection
+        """
+        s_1 = Song(
+            title="song",
+            album_list=[
+                Album(title="album"),
+            ]
+        )
+        s_2 = s_1.album_collection[0].song_collection[0]
+        self.assertTrue(s_1.id == s_2.id)
+
+
+    def test_auto_add_artist_to_album_feature_artist(self):
+        """
+        Tests that every artist is added to the album's feature_artist_collection per default
         """
 
-        a = self.complicated_object().main_album_collection[0]
-        b = a.song_collection[0].album_collection[0]
-        c = a.song_collection[1].album_collection[0]
-        d = b.song_collection[0].album_collection[0]
-        e = d.song_collection[0].album_collection[0]
-        f = e.song_collection[0].album_collection[0]
-        g = f.song_collection[0].album_collection[0]
-
-        self.assertTrue(a.id == b.id == c.id == d.id == e.id == f.id == g.id)
-        self.assertTrue(a.title == b.title == c.title == d.title == e.title == f.title == g.title == "album")
-        self.assertTrue(a.barcode == b.barcode == c.barcode == d.barcode == e.barcode == f.barcode == g.barcode == "1234567890123")
-        self.assertTrue(a.albumsort == b.albumsort == c.albumsort == d.albumsort == e.albumsort == f.albumsort == g.albumsort == 123)
-
-        d.title = "new_title"
-
-        self.assertTrue(a.title == b.title == c.title == d.title == e.title == f.title == g.title == "new_title")
-
-    def test_album_artist_relation(self):
-        """
-        Tests that
-        artist = artist.any_album.any_song.one_artist
-        is the same object
-        """
-
-        a = self.complicated_object()
-        b = a.main_album_collection[0].artist_collection[0]
-        c = b.main_album_collection[0].artist_collection[0]
-        d = c.main_album_collection[0].artist_collection[0]
-
-        self.assertTrue(a.id == b.id == c.id == d.id)
-        self.assertTrue(a.name == b.name == c.name == d.name == "artist")
-        self.assertTrue(a.country == b.country == c.country == d.country)
-
-    def test_artist_artist_relation(self):
-        artist = Artist(
+        a_1 = Artist(
             name="artist",
-            main_album_list=[
+            album_list=[
+                Album(title="album")
+            ]
+        )
+        a_2 = a_1.album_collection[0].feature_artist_collection[0]
+
+        self.assertTrue(a_1.id == a_2.id)
+    
+    def test_auto_add_artist_to_album_feature_artist_push(self):
+        """
+        Tests that every artist is added to the album's feature_artist_collection per default but pulled into the album's artist_collection if a merge exitst
+        """
+
+        a_1 = Artist(
+            name="artist",
+            album_list=[
                 Album(
                     title="album",
-                    song_list=[
-                        Song(title="song"),
-                    ],
                     artist_list=[
                         Artist(name="artist"),
                     ]
                 )
             ]
         )
+        a_2 = a_1.album_collection[0].artist_collection[0]
 
-        self.assertTrue(artist.id == artist.main_album_collection[0].song_collection[0].main_artist_collection[0].id)
+        self.assertTrue(a_1.id == a_2.id)
+
+
+    def test_artist_artist_relation(self):
+        """
+        Tests the proper syncing between album.artist_collection and song.artist_collection
+        """
+
+        album = Album(
+            title="album",
+            song_list=[
+                Song(title="song"),
+            ],
+            artist_list=[
+                Artist(name="artist"),
+            ]
+        )
+        a_1 = album.artist_collection[0]
+        a_2 = album.song_collection[0].artist_collection[0]
+
+        self.assertTrue(a_1.id == a_2.id)
 
     def test_artist_collection_sync(self):
+        """
+        tests the actual implementation of the test above
+        """
+
         album_1 = Album(
             title="album",
             song_list=[
-                Song(title="song", main_artist_list=[Artist(name="artist")]),
+                Song(title="song", artist_list=[Artist(name="artist")]),
             ],
             artist_list=[
                 Artist(name="artist"),
@@ -102,7 +104,7 @@ class TestCollection(unittest.TestCase):
         album_2 = Album(
             title="album",
             song_list=[
-                Song(title="song", main_artist_list=[Artist(name="artist")]),
+                Song(title="song", artist_list=[Artist(name="artist")]),
             ],
             artist_list=[
                 Artist(name="artist"),
@@ -111,17 +113,7 @@ class TestCollection(unittest.TestCase):
 
         album_1.merge(album_2)
 
-        self.assertTrue(id(album_1.artist_collection) == id(album_1.artist_collection) == id(album_1.song_collection[0].main_artist_collection) == id(album_1.song_collection[0].main_artist_collection))
-
-    def test_song_artist_relations(self):
-        a = self.complicated_object()
-        b = a.main_album_collection[0].song_collection[0].main_artist_collection[0]
-        c = b.main_album_collection[0].song_collection[0].main_artist_collection[0]
-        d = c.main_album_collection[0].song_collection[0].main_artist_collection[0]
-
-        self.assertTrue(a.id == b.id == c.id == d.id)
-        self.assertTrue(a.name == b.name == c.name == d.name == "artist")
-        self.assertTrue(a.country == b.country == c.country == d.country)
+        self.assertTrue(id(album_1.artist_collection) == id(album_1.artist_collection) == id(album_1.song_collection[0].artist_collection) == id(album_1.song_collection[0].artist_collection))
 
 if __name__ == "__main__":
     unittest.main()