Merge pull request 'fix/reindex_before_collection' (#21) from fix/reindex_before_collection into experimental

Reviewed-on: #21

.vscode/settings.json

@@ -16,6 +16,7 @@
     },
     "python.formatting.provider": "none",
     "cSpell.words": [
+        "albumsort",
         "APIC",
         "Bandcamp",
         "dotenv",
@@ -28,9 +29,11 @@
         "pathvalidate",
         "Referer",
         "sponsorblock",
+        "tracklist",
         "tracksort",
         "translit",
         "unmap",
-        "youtube"
+        "youtube",
+        "youtubei"
     ]
 }

development/actual_donwload.py

@@ -6,8 +6,8 @@ logging.getLogger().setLevel(logging.DEBUG)
 
 if __name__ == "__main__":
     commands = [
-        "s: #a Crystal F",
+        "s: #a Psychonaut 4",
-        "d: 20",
+        "d: 0"
     ]
 
     

development/objects_collection.py

@@ -2,30 +2,24 @@ import music_kraken
 from music_kraken.objects import Song, Album, Artist, Collection
 
 if __name__ == "__main__":
-    album_1 = Album(
+    song_1 = Song(
-        title="album",
+        title="song",
-        song_list=[
+        feature_artist_list=[Artist(
-            Song(title="song", main_artist_list=[Artist(name="artist")]),
+            name="main_artist"
-        ],
+        )]
-        artist_list=[
-            Artist(name="artist 3"),
-        ]
     )
 
-    album_2 = Album(
+    other_artist = Artist(name="other_artist")
-        title="album",
+
-        song_list=[
+    song_2 = Song(
-            Song(title="song", main_artist_list=[Artist(name="artist 2")]),
+        title = "song",
-        ],
+        main_artist_list=[other_artist]
-        artist_list=[
-            Artist(name="artist"),
-        ]
     )
 
-    album_1.merge(album_2)
+    other_artist.name = "main_artist"
 
-    print()
+    song_1.merge(song_2)
-    print(*(f"{a.title_string} ; {a.id}" for a in album_1.artist_collection.data), sep=" | ")
 
-    print(id(album_1.artist_collection), id(album_2.artist_collection))
+    print("#" * 120)
-    print(id(album_1.song_collection[0].main_artist_collection), id(album_2.song_collection[0].main_artist_collection))
+    print("main", *song_1.main_artist_collection)
+    print("feat", *song_1.feature_artist_collection)

music_kraken/audio/metadata.py

@@ -79,7 +79,7 @@ def write_metadata_to_target(metadata: Metadata, target: Target, song: Song):
         with temp_target.open("wb") as f:
             f.write(r.content)
 
-        converted_target: Target = Target.temp(name=f"{song.title}.jpeg")
+        converted_target: Target = Target.temp(name=f"{song.title.replace('/', '_')}")
         with Image.open(temp_target.file_path) as img:
             # crop the image if it isn't square in the middle with minimum data loss
             width, height = img.size

music_kraken/objects/artwork.py

@@ -53,9 +53,9 @@ class Artwork:
     def get_variant_name(self, variant: ArtworkVariant) -> str:
         return f"artwork_{variant['width']}x{variant['height']}_{hash_url(variant['url']).replace('/', '_')}"
 
-    def __merge__(self, other: Artwork, override: bool = False) -> None:
+    def __merge__(self, other: Artwork, **kwargs) -> None:
         for key, value in other._variant_mapping.items():
-            if key not in self._variant_mapping or override:
+            if key not in self._variant_mapping:
                 self._variant_mapping[key] = value
 
     def __eq__(self, other: Artwork) -> bool:

music_kraken/objects/collection.py

@@ -1,9 +1,10 @@
 from __future__ import annotations
 
 from collections import defaultdict
-from typing import TypeVar, Generic, Dict, Optional, Iterable, List, Iterator, Tuple, Generator, Union, Any
+from typing import TypeVar, Generic, Dict, Optional, Iterable, List, Iterator, Tuple, Generator, Union, Any, Set
 from .parents import OuterProxy
 from ..utils import object_trace
+from ..utils import output, BColors
 
 T = TypeVar('T', bound=OuterProxy)
 
@@ -13,8 +14,8 @@ class Collection(Generic[T]):
 
     _data: List[T]
 
-    _indexed_values: Dict[str, set]
+    _indexed_from_id: Dict[int, Dict[str, Any]]
-    _indexed_to_objects: Dict[any, list]
+    _indexed_values: Dict[str, Dict[Any, T]]
 
     shallow_list = property(fget=lambda self: self.data)
 
@@ -36,8 +37,8 @@ class Collection(Generic[T]):
         self.append_object_to_attribute: Dict[str, T] = append_object_to_attribute or {}
         self.extend_object_to_attribute: Dict[str, Collection[T]] = extend_object_to_attribute or {}
         self.sync_on_append: Dict[str, Collection] = sync_on_append or {}
-
+        self.pull_from: List[Collection] = []
-        self._id_to_index_values: Dict[int, set] = defaultdict(set)
+        self.push_to: List[Collection] = []
 
         # This is to cleanly unmap previously mapped items by their id
         self._indexed_from_id: Dict[int, Dict[str, Any]] = defaultdict(dict)
@@ -47,9 +48,10 @@ class Collection(Generic[T]):
         self.extend(data)
 
     def __repr__(self) -> str:
-        return f"Collection({id(self)})"
+        return f"Collection({' | '.join(self._collection_for.values())} {id(self)})"
 
-    def _map_element(self, __object: T, from_map: bool = False):
+    def _map_element(self, __object: T, no_unmap: bool = False, **kwargs):
+        if not no_unmap:
             self._unmap_element(__object.id)
 
         self._indexed_from_id[__object.id]["id"] = __object.id
@@ -74,73 +76,129 @@ class Collection(Generic[T]):
 
         del self._indexed_from_id[obj_id]
 
-    def _find_object(self, __object: T) -> Optional[T]:
+    def _remap(self):
+        # reinitialize the mapping to clean it without time consuming operations
+        self._indexed_from_id: Dict[int, Dict[str, Any]] = defaultdict(dict)
+        self._indexed_values: Dict[str, Dict[Any, T]] = defaultdict(dict)
+
+        for e in self._data:
+            self._map_element(e, no_unmap=True)
+
+
+    def _find_object(self, __object: T, **kwargs) -> Optional[T]:
+        self._remap()
+
+        if __object.id in self._indexed_from_id:
+            return self._indexed_values["id"][__object.id]
+
         for name, value in __object.indexing_values:
             if value in self._indexed_values[name]:
                 return self._indexed_values[name][value]
 
-    def append(self, __object: Optional[T], already_is_parent: bool = False, from_map: bool = False):
+        return None
+    
+    def _append_new_object(self, other: T, **kwargs):
+        """
+        This function appends the other object to the current collection.
+        This only works if not another object, which represents the same real life object exists in the collection.
+        """
+        
+        self._data.append(other)
+
+        # all of the existing hooks to get the defined datastructure
+        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)
+            if a is b:
+                continue
+
+            object_trace(f"Syncing [{a}] = [{b}]")
+
+            b_data = b.data.copy()
+            b_collection_for = b._collection_for.copy()
+
+            del b
+
+            for synced_with, key in b_collection_for.items():
+                synced_with.__setattr__(key, a)
+                a._collection_for[synced_with] = key
+
+            a.extend(b_data, **kwargs)
+
+    def append(self, other: Optional[T], **kwargs):
         """
         If an object, that represents the same entity exists in a relevant collection,
         merge into this object. (and remap)
         Else append to this collection.
 
-        :param __object:
+        :param other:
-        :param already_is_parent:
-        :param from_map:
         :return:
         """
 
-        if __object is None:
+        if other is None:
+            return
+        if other.id in self._indexed_from_id:
             return
 
-        existing_object = self._find_object(__object)
+        object_trace(f"Appending {other.option_string} to {self}")
+
+        
+        for c in self.pull_from:
+            r = c._find_object(other)
+            if r is not None:
+                output("found pull from", r, other, self, color=BColors.RED, sep="\t")
+                other.merge(r, **kwargs)
+                c.remove(r, existing=r, **kwargs)
+                break
+
+        existing_object = self._find_object(other)
+
+        # switching collection in the case of push to
+        for c in self.push_to:
+            r = c._find_object(other)
+            if r is not None:
+                output("found push to", r, other, self, color=BColors.RED, sep="\t")
+                return c.append(other, **kwargs)
         
         if existing_object is None:
-            # append
+            self._append_new_object(other, **kwargs)
-            self._data.append(__object)
+        else:
-            self._map_element(__object)
+            existing_object.merge(other, **kwargs)
 
-            for collection_attribute, child_collection in self.extend_object_to_attribute.items():
+    def remove(self, *other_list: List[T], silent: bool = False, existing: Optional[T] = None, **kwargs):
-                __object.__getattribute__(collection_attribute).extend(child_collection)
+        for other in other_list:
+            existing: Optional[T] = existing or self._indexed_values["id"].get(other.id, None)
+            if existing is None:
+                if not silent:
+                    raise ValueError(f"Object {other} not found in {self}")
+                return other
+
+            """
+            for collection_attribute, generator in self.extend_object_to_attribute.items():
+                other.__getattribute__(collection_attribute).remove(*generator, silent=silent, **kwargs)
 
             for attribute, new_object in self.append_object_to_attribute.items():
-                __object.__getattribute__(attribute).append(new_object)
+                other.__getattribute__(attribute).remove(new_object, silent=silent, **kwargs)
+            """ 
 
-            # only modify collections if the object actually has been appended
+            self._data.remove(existing)
-            for attribute, a in self.sync_on_append.items():
+            self._unmap_element(existing)
-                b = __object.__getattribute__(attribute)
-                object_trace(f"Syncing [{a}{id(a)}] = [{b}{id(b)}]")
 
-                data_to_extend = b.data
+    def contains(self, __object: T) -> bool:
+        return self._find_object(__object) is not None
 
-                a._collection_for.update(b._collection_for)
+    def extend(self, other_collections: Optional[Generator[T, None, None]], **kwargs):
-                for synced_with, key in b._collection_for.items():
+        if other_collections is None:
-                    synced_with.__setattr__(key, a)
-
-                a.extend(data_to_extend)
-
-
-        else:
-            # merge only if the two objects are not the same
-            if existing_object.id == __object.id:
             return
 
-            old_id = existing_object.id
+        for other_object in other_collections:
-
+            self.append(other_object, **kwargs)
-            existing_object.merge(__object)
-
-            if existing_object.id != old_id:
-                self._unmap_element(old_id)
-
-            self._map_element(existing_object)            
-
-    def extend(self, __iterable: Optional[Generator[T, None, None]]):
-        if __iterable is None:
-            return
-
-        for __object in __iterable:
-            self.append(__object)
 
     @property
     def data(self) -> List[T]:
@@ -156,8 +214,9 @@ class Collection(Generic[T]):
     def __iter__(self) -> Iterator[T]:
         yield from self._data
 
-    def __merge__(self, __other: Collection, override: bool = False):
+    def __merge__(self, other: Collection, **kwargs):
-        self.extend(__other)
+        object_trace(f"merging {str(self)} | {str(other)}")
+        self.extend(other, **kwargs)
 
     def __getitem__(self, item: int):
         return self._data[item]
@@ -166,3 +225,9 @@ class Collection(Generic[T]):
         if item >= len(self._data):
             return default
         return self._data[item]
+
+    def __eq__(self, other: Collection) -> bool:
+        if self.empty and other.empty:
+            return True
+        
+        return self._data == other._data

music_kraken/objects/parents.py

@@ -9,9 +9,9 @@ from pathlib import Path
 import inspect
 
 from .metadata import Metadata
-from ..utils import get_unix_time, object_trace
+from ..utils import get_unix_time, object_trace, generate_id
 from ..utils.config import logging_settings, main_settings
-from ..utils.shared import HIGHEST_ID
+from ..utils.shared import HIGHEST_ID, DEBUG_PRINT_ID
 from ..utils.hacking import MetaClass
 
 LOGGER = logging_settings["object_logger"]
@@ -29,6 +29,9 @@ class InnerData:
     """
 
     _refers_to_instances: set = None
+    """
+    Attribute versions keep track, of if the attribute has been changed.
+    """
 
     def __init__(self, object_type, **kwargs):
         self._refers_to_instances = set()
@@ -42,21 +45,28 @@ class InnerData:
         for key, value in kwargs.items():
             if hasattr(value, "__is_collection__"):
                 value._collection_for[self] = key
+                
             self.__setattr__(key, value)
 
     def __hash__(self):
         return self.id
 
-    def __merge__(self, __other: InnerData, override: bool = False):
+    def __merge__(self, __other: InnerData, **kwargs):
         """
         :param __other:
-        :param override:
         :return:
         """
 
         self._fetched_from.update(__other._fetched_from)
 
         for key, value in __other.__dict__.copy().items():
+            if key.startswith("_"):
+                continue
+
+            if hasattr(value, "__is_collection__") and key in self.__dict__:
+                self.__getattribute__(key).__merge__(value, **kwargs)
+                continue
+
             # just set the other value if self doesn't already have it
             if key not in self.__dict__ or (key in self.__dict__ and self.__dict__[key] == self._default_values.get(key)):
                 self.__setattr__(key, value)
@@ -64,13 +74,8 @@ class InnerData:
 
             # if the object of value implemented __merge__, it merges
             existing = self.__getattribute__(key)
-            if hasattr(type(existing), "__merge__"):
+            if hasattr(existing, "__merge__"):
-                existing.__merge__(value, override)
+                existing.__merge__(value, **kwargs)
-                continue
-
-            # override the existing value if requested
-            if override:
-                self.__setattr__(key, value)
 
 
 class OuterProxy:
@@ -84,8 +89,6 @@ class OuterProxy:
     DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = tuple()
     UPWARDS_COLLECTION_STRING_ATTRIBUTES = tuple()
 
-    TITEL = "id"
-
     def __init__(self, _id: int = None, dynamic: bool = False, **kwargs):
         _automatic_id: bool = False
 
@@ -94,7 +97,7 @@ class OuterProxy:
             generates a random integer id
             the range is defined in the config
             """
-            _id = random.randint(0, HIGHEST_ID)
+            _id = generate_id()
             _automatic_id = True
 
         kwargs["automatic_id"] = _automatic_id
@@ -116,7 +119,7 @@ class OuterProxy:
         self._inner: InnerData = InnerData(type(self), **kwargs)
         self._inner._refers_to_instances.add(self)
 
-        object_trace(f"creating {type(self).__name__} [{self.title_string}]")
+        object_trace(f"creating {type(self).__name__} [{self.option_string}]")
 
         self.__init_collections__()
 
@@ -173,13 +176,12 @@ class OuterProxy:
     def __eq__(self, other: Any):
         return self.__hash__() == other.__hash__()
 
-    def merge(self, __other: Optional[OuterProxy], override: bool = False):
+    def merge(self, __other: Optional[OuterProxy], **kwargs):
         """
         1. merges the data of __other in self
         2. replaces the data of __other with the data of self
 
         :param __other:
-        :param override:
         :return:
         """
         if __other is None:
@@ -196,7 +198,7 @@ class OuterProxy:
         if len(b._inner._refers_to_instances) > len(a._inner._refers_to_instances):
             a, b = b, a
 
-        object_trace(f"merging {type(a).__name__} [{a.title_string} | {a.id}] with {type(b).__name__} [{b.title_string} | {b.id}]")
+        object_trace(f"merging {a.option_string} | {b.option_string}")
 
         old_inner = b._inner
 
@@ -204,11 +206,11 @@ class OuterProxy:
             instance._inner = a._inner
             a._inner._refers_to_instances.add(instance)
 
-        a._inner.__merge__(old_inner, override=override)
+        a._inner.__merge__(old_inner, **kwargs)
         del old_inner
 
-    def __merge__(self, __other: Optional[OuterProxy], override: bool = False):
+    def __merge__(self, __other: Optional[OuterProxy], **kwargs):
-        self.merge(__other, override)
+        self.merge(__other, **kwargs)
 
     def mark_as_fetched(self, *url_hash_list: List[str]):
         for url_hash in url_hash_list:
@@ -235,7 +237,23 @@ class OuterProxy:
 
     @property
     def options(self) -> List[P]:
-        return [self]
+        r = []
+
+        for collection_string_attribute in self.UPWARDS_COLLECTION_STRING_ATTRIBUTES:
+            r.extend(self.__getattribute__(collection_string_attribute))
+
+        r.append(self)
+
+        for collection_string_attribute in self.DOWNWARDS_COLLECTION_STRING_ATTRIBUTES:
+            r.extend(self.__getattribute__(collection_string_attribute))
+
+        return r
+
+    @property
+    def option_string(self) -> str:
+        return self.title_string
+
+    INDEX_DEPENDS_ON: List[str] = []
 
     @property
     def indexing_values(self) -> List[Tuple[str, object]]:
@@ -267,9 +285,10 @@ class OuterProxy:
 
         return r
 
+    TITEL = "id"
     @property
     def title_string(self) -> str:
-        return str(self.__getattribute__(self.TITEL))
+        return str(self.__getattribute__(self.TITEL)) + (f" {self.id}" if DEBUG_PRINT_ID else "")
 
     def __repr__(self):
         return f"{type(self).__name__}({self.title_string})"

music_kraken/objects/song.py

@@ -22,6 +22,7 @@ from .parents import OuterProxy, P
 from .source import Source, SourceCollection
 from .target import Target
 from .country import Language, Country
+from ..utils.shared import DEBUG_PRINT_ID
 from ..utils.string_processing import unify
 
 from .parents import OuterProxy as Base
@@ -43,7 +44,8 @@ def get_collection_string(
     template: str, 
     ignore_titles: Set[str] = None,
     background: BColors = OPTION_BACKGROUND, 
-    foreground: BColors = OPTION_FOREGROUND
+    foreground: BColors = OPTION_FOREGROUND,
+    add_id: bool = DEBUG_PRINT_ID,
 ) -> str:
     if collection.empty:
         return ""
@@ -55,8 +57,15 @@ def get_collection_string(
 
     r = background
 
+    def get_element_str(element) -> str:
+        nonlocal add_id
+        r = element.title_string.strip()
+        if add_id and False:
+            r += " " + str(element.id)
+        return r
+
     element: Base
-    titel_list: List[str] = [element.title_string.strip() for element in collection if element.title_string not in ignore_titles]
+    titel_list: List[str] = [get_element_str(element) for element in collection if element.title_string not in ignore_titles]
 
     for i, titel in enumerate(titel_list):
         delimiter = ", "
@@ -117,7 +126,7 @@ class Song(Base):
 
         Base.__init__(**locals())
 
-    UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("album_collection", "main_artist_collection", "feature_artist_collection")
+    UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("main_artist_collection", "feature_artist_collection", "album_collection")
     TITEL = "title"
 
     def __init_collections__(self) -> None:
@@ -135,6 +144,9 @@ class Song(Base):
             "feature_song_collection": self
         }
 
+        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
@@ -144,20 +156,21 @@ class Song(Base):
             return
 
         if isinstance(object_list, Artist):
-            self.main_artist_collection.extend(object_list)
+            self.feature_artist_collection.extend(object_list)
             return
 
         if isinstance(object_list, Album):
             self.album_collection.extend(object_list)
             return
 
+    INDEX_DEPENDS_ON = ("title", "isrc", "source_collection")
+
     @property
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
-            ('id', self.id),
             ('title', unify(self.title)),
             ('isrc', self.isrc),
-            *[('url', source.url) for source in self.source_collection]
+            *self.source_collection.indexing_values(),
         ]
 
     @property
@@ -169,6 +182,8 @@ class Song(Base):
             id3Mapping.GENRE: [self.genre],
             id3Mapping.TRACKNUMBER: [self.tracksort_str],
             id3Mapping.COMMENT: [self.note.markdown],
+            id3Mapping.FILE_WEBPAGE_URL: self.source_collection.url_list,
+            id3Mapping.SOURCE_WEBPAGE_URL: self.source_collection.homepage_list,
         })
 
         # metadata.merge_many([s.get_song_metadata() for s in self.source_collection])  album sources have no relevant metadata for id3
@@ -189,7 +204,7 @@ class Song(Base):
 
     @property
     def option_string(self) -> str:
-        r = OPTION_FOREGROUND.value + self.title + BColors.ENDC.value + OPTION_BACKGROUND.value
+        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. {}")
@@ -269,7 +284,7 @@ class Album(Base):
                          **kwargs)
 
     DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = ("song_collection",)
-    UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("artist_collection", "label_collection")
+    UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("label_collection", "artist_collection")
 
     def __init_collections__(self):
         self.song_collection.append_object_to_attribute = {
@@ -302,13 +317,14 @@ class Album(Base):
             self.label_collection.extend(object_list)
             return
 
+    INDEX_DEPENDS_ON = ("title", "barcode", "source_collection")
+
     @property
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
-            ('id', self.id),
             ('title', unify(self.title)),
             ('barcode', self.barcode),
-            *[('url', source.url) for source in self.source_collection]
+            *self.source_collection.indexing_values(),
         ]
 
     @property
@@ -333,7 +349,7 @@ class Album(Base):
 
     @property
     def option_string(self) -> str:
-        r = OPTION_FOREGROUND.value + self.title + BColors.ENDC.value + OPTION_BACKGROUND.value
+        r = OPTION_FOREGROUND.value + self.title_string + BColors.ENDC.value + OPTION_BACKGROUND.value
         r += get_collection_string(self.artist_collection, " by {}")
         r += get_collection_string(self.label_collection, " under {}")
 
@@ -341,12 +357,6 @@ class Album(Base):
             r += f" with {len(self.song_collection)} songs"
         return r
 
-    @property
-    def options(self) -> List[P]:
-        options = [*self.artist_collection, self, *self.song_collection]
-
-        return options
-
     def update_tracksort(self):
         """
         This updates the tracksort attributes, of the songs in
@@ -372,18 +382,6 @@ class Album(Base):
                 tracksort_map[i] = existing_list.pop(0)
                 tracksort_map[i].tracksort = i
 
-    def compile(self, merge_into: bool = False):
-        """
-        compiles the recursive structures,
-        and does depending on the object some other stuff.
-
-        no need to override if only the recursive structure should be built.
-        override self.build_recursive_structures() instead
-        """
-
-        self.update_tracksort()
-        self._build_recursive_structures(build_version=random.randint(0, 99999), merge=merge_into)
-
     @property
     def copyright(self) -> str:
         if self.date is None:
@@ -429,7 +427,7 @@ class Artist(Base):
     lyrical_themes: List[str]
 
     general_genre: str
-    unformated_location: str
+    unformatted_location: str
 
     source_collection: SourceCollection
     contact_collection: Collection[Contact]
@@ -442,7 +440,7 @@ class Artist(Base):
         "name": str,
         "unified_name": lambda: None,
         "country": lambda: None,
-        "unformated_location": lambda: None,
+        "unformatted_location": lambda: None,
 
         "formed_in": ID3Timestamp,
         "notes": FormattedText,
@@ -461,17 +459,17 @@ class Artist(Base):
     # This is automatically generated
     def __init__(self, name: str = "", unified_name: str = None, country: Country = None,
                  formed_in: ID3Timestamp = None, notes: FormattedText = None, lyrical_themes: List[str] = None,
-                 general_genre: str = None, unformated_location: str = None, source_list: List[Source] = None,
+                 general_genre: str = None, unformatted_location: str = None, source_list: List[Source] = None,
                  contact_list: List[Contact] = None, feature_song_list: List[Song] = None,
                  main_album_list: List[Album] = None, label_list: List[Label] = None, **kwargs) -> None:
         
         super().__init__(name=name, unified_name=unified_name, country=country, formed_in=formed_in, notes=notes,
                          lyrical_themes=lyrical_themes, general_genre=general_genre,
-                         unformated_location=unformated_location, source_list=source_list, contact_list=contact_list,
+                         unformatted_location=unformatted_location, source_list=source_list, contact_list=contact_list,
                          feature_song_list=feature_song_list, main_album_list=main_album_list, label_list=label_list,
                          **kwargs)
 
-    DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = ("feature_song_collection", "main_album_collection")
+    DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = ("main_album_collection", "feature_song_collection")
     UPWARDS_COLLECTION_STRING_ATTRIBUTES = ("label_collection",)
 
     def __init_collections__(self):
@@ -504,12 +502,6 @@ class Artist(Base):
             self.label_collection.extend(object_list)
             return
 
-    @property
-    def options(self) -> List[P]:
-        options = [self, *self.main_album_collection.shallow_list, *self.feature_album]
-        print(options)
-        return options
-
     def update_albumsort(self):
         """
         This updates the albumsort attributes, of the albums in
@@ -567,40 +559,27 @@ class Artist(Base):
         # replace the old collection with the new one
         self.main_album_collection: Collection = Collection(data=album_list, element_type=Album)
 
+    INDEX_DEPENDS_ON = ("name", "source_collection", "contact_collection")
     @property
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
-            ('id', self.id),
             ('name', unify(self.name)),
-            *[('url', source.url) for source in self.source_collection],
+            *[('contact', contact.value) for contact in self.contact_collection],
-            *[('contact', contact.value) for contact in self.contact_collection]
+            *self.source_collection.indexing_values(),
         ]
 
     @property
     def metadata(self) -> Metadata:
         metadata = Metadata({
-            id3Mapping.ARTIST: [self.name]
+            id3Mapping.ARTIST: [self.name],
+            id3Mapping.ARTIST_WEBPAGE_URL: self.source_collection.url_list,
         })
-        metadata.merge_many([s.get_artist_metadata() for s in self.source_collection])
 
         return metadata
 
-    """
-    def __str__(self, include_notes: bool = False):
-        string = self.name or ""
-        if include_notes:
-            plaintext_notes = self.notes.get_plaintext()
-            if plaintext_notes is not None:
-                string += "\n" + plaintext_notes
-        return string
-    """
-
-    def __repr__(self):
-        return f"Artist(\"{self.name}\")"
-
     @property
     def option_string(self) -> str:
-        r = OPTION_FOREGROUND.value + self.name + BColors.ENDC.value + OPTION_BACKGROUND.value
+        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
@@ -613,43 +592,6 @@ class Artist(Base):
 
         return r
 
-    @property
-    def options(self) -> List[P]:
-        options = [self]
-        options.extend(self.main_album_collection)
-        options.extend(self.feature_song_collection)
-        return options
-
-    @property
-    def feature_album(self) -> Album:
-        return Album(
-            title="features",
-            album_status=AlbumStatus.UNRELEASED,
-            album_type=AlbumType.COMPILATION_ALBUM,
-            is_split=True,
-            albumsort=666,
-            dynamic=True,
-            song_list=self.feature_song_collection.shallow_list
-        )
-
-    def get_all_songs(self) -> List[Song]:
-        """
-        returns a list of all Songs.
-        probably not that useful, because it is unsorted
-        """
-        collection = self.feature_song_collection.copy()
-        for album in self.discography:
-            collection.extend(album.song_collection)
-
-        return collection
-
-    @property
-    def discography(self) -> List[Album]:
-        flat_copy_discography = self.main_album_collection.copy()
-        flat_copy_discography.append(self.feature_album)
-
-        return flat_copy_discography
-
 
 """
 Label
@@ -702,7 +644,6 @@ class Label(Base):
     @property
     def indexing_values(self) -> List[Tuple[str, object]]:
         return [
-            ('id', self.id),
             ('name', unify(self.name)),
             *[('url', source.url) for source in self.source_collection]
         ]

music_kraken/objects/source.py

@@ -2,142 +2,176 @@ from __future__ import annotations
 
 from collections import defaultdict
 from enum import Enum
-from typing import List, Dict, Set, Tuple, Optional, Iterable
+from typing import List, Dict, Set, Tuple, Optional, Iterable, Generator
-from urllib.parse import urlparse
+from urllib.parse import urlparse, ParseResult
+from dataclasses import dataclass, field
+from functools import cached_property
 
+from ..utils import generate_id
 from ..utils.enums.source import SourcePages, SourceTypes
 from ..utils.config import youtube_settings
-from ..utils.string_processing import hash_url
+from ..utils.string_processing import hash_url, shorten_display_url
 
 from .metadata import Mapping, Metadata
 from .parents import OuterProxy
 from .collection import Collection
 
 
-class Source(OuterProxy):
-    url: str
 
+@dataclass
+class Source:
     page_enum: SourcePages
-    referer_page: SourcePages
+    url: str
+    referrer_page: SourcePages = None
+    audio_url: Optional[str] = None
 
-    audio_url: str
+    additional_data: dict = field(default_factory=dict)
 
-    _default_factories = {
+    def __post_init__(self):
-        "audio_url": lambda: None,
+        self.referrer_page = self.referrer_page or self.page_enum
-    }
     
-    # This is automatically generated
+    @property
-    def __init__(self, page_enum: SourcePages, url: str, referer_page: SourcePages = None, audio_url: str = None,
+    def parsed_url(self) -> ParseResult:
-                 **kwargs) -> None:
+        return urlparse(self.url)
-
-        if referer_page is None:
-            referer_page = page_enum
-
-        super().__init__(url=url, page_enum=page_enum, referer_page=referer_page, audio_url=audio_url, **kwargs)
 
     @classmethod
-    def match_url(cls, url: str, referer_page: SourcePages) -> Optional["Source"]:
+    def match_url(cls, url: str, referrer_page: SourcePages) -> Optional[Source]:
         """
-        this shouldn't be used, unlesse you are not certain what the source is for
+        this shouldn't be used, unless you are not certain what the source is for
         the reason is that it is more inefficient
         """
-        parsed = urlparse(url)
+        parsed_url = urlparse(url)
-        url = parsed.geturl()
+        url = parsed_url.geturl()
         
-        if "musify" in parsed.netloc:
+        if "musify" in parsed_url.netloc:
-            return cls(SourcePages.MUSIFY, url, referer_page=referer_page)
+            return cls(SourcePages.MUSIFY, url, referrer_page=referrer_page)
 
-        if parsed.netloc in [_url.netloc for _url in youtube_settings['youtube_url']]:
+        if parsed_url.netloc in [_url.netloc for _url in youtube_settings['youtube_url']]:
-            return cls(SourcePages.YOUTUBE, url, referer_page=referer_page)
+            return cls(SourcePages.YOUTUBE, url, referrer_page=referrer_page)
 
         if url.startswith("https://www.deezer"):
-            return cls(SourcePages.DEEZER, url, referer_page=referer_page)
+            return cls(SourcePages.DEEZER, url, referrer_page=referrer_page)
         
         if url.startswith("https://open.spotify.com"):
-            return cls(SourcePages.SPOTIFY, url, referer_page=referer_page)
+            return cls(SourcePages.SPOTIFY, url, referrer_page=referrer_page)
 
         if "bandcamp" in url:
-            return cls(SourcePages.BANDCAMP, url, referer_page=referer_page)
+            return cls(SourcePages.BANDCAMP, url, referrer_page=referrer_page)
 
-        if "wikipedia" in parsed.netloc:
+        if "wikipedia" in parsed_url.netloc:
-            return cls(SourcePages.WIKIPEDIA, url, referer_page=referer_page)
+            return cls(SourcePages.WIKIPEDIA, url, referrer_page=referrer_page)
 
         if url.startswith("https://www.metal-archives.com/"):
-            return cls(SourcePages.ENCYCLOPAEDIA_METALLUM, url, referer_page=referer_page)
+            return cls(SourcePages.ENCYCLOPAEDIA_METALLUM, url, referrer_page=referrer_page)
 
         # the less important once
         if url.startswith("https://www.facebook"):
-            return cls(SourcePages.FACEBOOK, url, referer_page=referer_page)
+            return cls(SourcePages.FACEBOOK, url, referrer_page=referrer_page)
 
         if url.startswith("https://www.instagram"):
-            return cls(SourcePages.INSTAGRAM, url, referer_page=referer_page)
+            return cls(SourcePages.INSTAGRAM, url, referrer_page=referrer_page)
 
         if url.startswith("https://twitter"):
-            return cls(SourcePages.TWITTER, url, referer_page=referer_page)
+            return cls(SourcePages.TWITTER, url, referrer_page=referrer_page)
 
         if url.startswith("https://myspace.com"):
-            return cls(SourcePages.MYSPACE, url, referer_page=referer_page)
+            return cls(SourcePages.MYSPACE, url, referrer_page=referrer_page)
-
-    def get_song_metadata(self) -> Metadata:
-        return Metadata({
-            Mapping.FILE_WEBPAGE_URL: [self.url],
-            Mapping.SOURCE_WEBPAGE_URL: [self.homepage]
-        })
-
-    def get_artist_metadata(self) -> Metadata:
-        return Metadata({
-            Mapping.ARTIST_WEBPAGE_URL: [self.url]
-        })
 
     @property
     def hash_url(self) -> str:
         return hash_url(self.url)
 
     @property
-    def metadata(self) -> Metadata:
+    def indexing_values(self) -> list:
-        return self.get_song_metadata()
+        r = [hash_url(self.url)]
-
+        if self.audio_url:
-    @property
+            r.append(hash_url(self.audio_url))
-    def indexing_values(self) -> List[Tuple[str, object]]:
+        return r
-        return [
-            ('id', self.id),
-            ('url', self.url),
-            ('audio_url', self.audio_url),
-        ]
-        
-    def __str__(self):
-        return self.__repr__()
 
     def __repr__(self) -> str:
-        return f"Src({self.page_enum.value}: {self.url}, {self.audio_url})"
+        return f"Src({self.page_enum.value}: {shorten_display_url(self.url)})"
 
-    @property
+    def __merge__(self, other: Source, **kwargs):
-    def title_string(self) -> str:
+        if self.audio_url is None:
-        return self.url
+            self.audio_url = other.audio_url
+        self.additional_data.update(other.additional_data)
 
     page_str = property(fget=lambda self: self.page_enum.value)
-    type_str = property(fget=lambda self: self.type_enum.value)
-    homepage = property(fget=lambda self: SourcePages.get_homepage(self.page_enum))
 
 
-class SourceCollection(Collection):
+class SourceCollection:
+    __change_version__ = generate_id()
+
+    _indexed_sources: Dict[str, Source]
+    _page_to_source_list: Dict[SourcePages, List[Source]]
+
     def __init__(self, data: Optional[Iterable[Source]] = None, **kwargs):
-        self._page_to_source_list: Dict[SourcePages, List[Source]] = defaultdict(list)
+        self._page_to_source_list = defaultdict(list)
+        self._indexed_sources = {}
 
-        super().__init__(data=data, **kwargs)
+        self.extend(data or [])
 
-    def _map_element(self, __object: Source, **kwargs):
+    def has_source_page(self, *source_pages: SourcePages) -> bool:
-        super()._map_element(__object, **kwargs)
+        return any(source_page in self._page_to_source_list for source_page in source_pages)
 
-        self._page_to_source_list[__object.page_enum].append(__object)
+    def get_sources(self, *source_pages: List[Source]) -> Generator[Source]:
+        if not len(source_pages):
+            source_pages = self.source_pages
+
+        for page in source_pages:
+            yield from self._page_to_source_list[page]
+
+    def append(self, source: Source):
+        if source is None:
+            return
+
+        existing_source = None
+        for key in source.indexing_values:
+            if key in self._indexed_sources:
+                existing_source = self._indexed_sources[key]
+                break
+
+        if existing_source is not None:
+            existing_source.__merge__(source)
+            source = existing_source
+        else:
+            self._page_to_source_list[source.page_enum].append(source)
+
+        changed = False
+        for key in source.indexing_values:
+            if key not in self._indexed_sources:
+                changed = True
+            self._indexed_sources[key] = source
+
+        if changed:
+            self.__change_version__ = generate_id()
+
+    def extend(self, sources: Iterable[Source]):
+        for source in sources:
+            self.append(source)
+
+    def __iter__(self):
+        yield from self.get_sources()
+
+    def __merge__(self, other: SourceCollection, **kwargs):
+        self.extend(other)
         
     @property
-    def source_pages(self) -> Set[SourcePages]:
+    def source_pages(self) -> Iterable[SourcePages]:
-        return set(source.page_enum for source in self._data)
+        return sorted(self._page_to_source_list.keys(), key=lambda page: page.value)
 
-    def get_sources_from_page(self, source_page: SourcePages) -> List[Source]:
+    @property
-        """
+    def hash_url_list(self) -> List[str]:
-        getting the sources for a specific page like
+        return [hash_url(source.url) for source in self.get_sources()]
-        YouTube or musify
+
-        """
+    @property
-        return self._page_to_source_list[source_page].copy()
+    def url_list(self) -> List[str]:
+        return [source.url for source in self.get_sources()]
+
+    @property
+    def homepage_list(self) -> List[str]:
+        return [source.homepage for source in self.source_pages]
+
+    def indexing_values(self) -> Generator[Tuple[str, str], None, None]:
+        for index in self._indexed_sources:
+            yield "url", index

music_kraken/pages/abstract.py

@@ -89,52 +89,6 @@ class NamingDict(dict):
             return self.default_value_for_name(attribute_name)
 
 
-def _clean_music_object(music_object: INDEPENDENT_DB_OBJECTS, collections: Dict[INDEPENDENT_DB_TYPES, Collection]):
-    if type(music_object) == Label:
-        return _clean_label(label=music_object, collections=collections)
-    if type(music_object) == Artist:
-        return _clean_artist(artist=music_object, collections=collections)
-    if type(music_object) == Album:
-        return _clean_album(album=music_object, collections=collections)
-    if type(music_object) == Song:
-        return _clean_song(song=music_object, collections=collections)
-
-
-def _clean_collection(collection: Collection, collection_dict: Dict[INDEPENDENT_DB_TYPES, Collection]):
-    if collection.element_type not in collection_dict:
-        return
-
-    for i, element in enumerate(collection):
-        r = collection_dict[collection.element_type].append(element, merge_into_existing=True)
-        collection[i] = r.current_element
-
-        if not r.was_the_same:
-            _clean_music_object(r.current_element, collection_dict)
-
-
-def _clean_label(label: Label, collections: Dict[INDEPENDENT_DB_TYPES, Collection]):
-    _clean_collection(label.current_artist_collection, collections)
-    _clean_collection(label.album_collection, collections)
-
-
-def _clean_artist(artist: Artist, collections: Dict[INDEPENDENT_DB_TYPES, Collection]):
-    _clean_collection(artist.main_album_collection, collections)
-    _clean_collection(artist.feature_song_collection, collections)
-    _clean_collection(artist.label_collection, collections)
-
-
-def _clean_album(album: Album, collections: Dict[INDEPENDENT_DB_TYPES, Collection]):
-    _clean_collection(album.label_collection, collections)
-    _clean_collection(album.song_collection, collections)
-    _clean_collection(album.artist_collection, collections)
-
-
-def _clean_song(song: Song, collections: Dict[INDEPENDENT_DB_TYPES, Collection]):
-    _clean_collection(song.album_collection, collections)
-    _clean_collection(song.feature_artist_collection, collections)
-    _clean_collection(song.main_artist_collection, collections)
-
-
 class Page:
     """
     This is an abstract class, laying out the 
@@ -246,7 +200,7 @@ class Page:
         # 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_from_page(self.SOURCE_TYPE):
+            for source in music_object.source_collection.get_sources(self.SOURCE_TYPE):
                 if music_object.already_fetched_from(source.hash_url):
                     continue
 
@@ -419,9 +373,10 @@ class Page:
         if song.target_collection.empty:
             song.target_collection.append(new_target)
 
-        sources = song.source_collection.get_sources_from_page(self.SOURCE_TYPE)
+        if not song.source_collection.has_source_page(self.SOURCE_TYPE):
-        if len(sources) == 0:
+            return DownloadResult(error_message=f"No {self.__class__.__name__} source found for {song.option_string}.")
-            return DownloadResult(error_message=f"No source found for {song.title} as {self.__class__.__name__}.")
+
+        sources = song.source_collection.get_sources(self.SOURCE_TYPE)
 
         temp_target: Target = Target(
             relative_to_music_dir=False,
@@ -448,14 +403,19 @@ class Page:
             self.LOGGER.info(f"{song.option_string} already exists, thus not downloading again.")
             return r
 
-        source = sources[0]
-
         if not found_on_disc:
+            for source in sources:
                 r = self.download_song_to_target(source=source, target=temp_target, desc=song.option_string)
 
                 if not r.is_fatal_error:
-            r.merge(self._post_process_targets(song, temp_target,
+                    break
-                                               [] if found_on_disc else self.get_skip_intervals(song, source)))
+        
+        if temp_target.exists:
+            r.merge(self._post_process_targets(
+                song=song, 
+                temp_target=temp_target,
+                interval_list=[] if found_on_disc else self.get_skip_intervals(song, source)
+            ))
 
         return r
 

music_kraken/pages/bandcamp.py

@@ -185,7 +185,7 @@ class Bandcamp(Page):
                 if li is None and li['href'] is not None:
                     continue
 
-                source_list.append(Source.match_url(_parse_artist_url(li['href']), referer_page=self.SOURCE_TYPE))
+                source_list.append(Source.match_url(_parse_artist_url(li['href']), referrer_page=self.SOURCE_TYPE))
 
         return Artist(
             name=name,

music_kraken/pages/encyclopaedia_metallum.py

@@ -486,7 +486,7 @@ class EncyclopaediaMetallum(Page):
 
                 href = anchor["href"]
                 if href is not None:
-                    source_list.append(Source.match_url(href, referer_page=self.SOURCE_TYPE))
+                    source_list.append(Source.match_url(href, referrer_page=self.SOURCE_TYPE))
 
         # The following code is only legacy code, which I just kep because it doesn't harm.
         # The way ma returns sources changed.
@@ -504,7 +504,7 @@ class EncyclopaediaMetallum(Page):
                 if url is None:
                     continue
 
-                source_list.append(Source.match_url(url, referer_page=self.SOURCE_TYPE))
+                source_list.append(Source.match_url(url, referrer_page=self.SOURCE_TYPE))
                 
         return source_list
 

music_kraken/pages/musify.py

@@ -503,7 +503,7 @@ class Musify(Page):
                 source_list.append(Source(
                     SourcePages.YOUTUBE,
                     iframe["src"],
-                    referer_page=self.SOURCE_TYPE
+                    referrer_page=self.SOURCE_TYPE
                 ))
         
         return Song(
@@ -690,13 +690,6 @@ class Musify(Page):
                 new_song = self._parse_song_card(card_soup)
                 album.song_collection.append(new_song)
         
-        if stop_at_level > 1:
-            song: Song
-            for song in album.song_collection:
-                sources = song.source_collection.get_sources_from_page(self.SOURCE_TYPE)
-                for source in sources:
-                    song.merge(self.fetch_song(source=source))
-        
         album.update_tracksort()
 
         return album
@@ -812,7 +805,7 @@ class Musify(Page):
                 href = additional_source.get("href")
                 if href is None:
                     continue
-                new_src = Source.match_url(href, referer_page=self.SOURCE_TYPE)
+                new_src = Source.match_url(href, referrer_page=self.SOURCE_TYPE)
                 if new_src is None:
                     continue
                 source_list.append(new_src)

music_kraken/pages/youtube_music/_list_render.py

@@ -25,7 +25,6 @@ def music_card_shelf_renderer(renderer: dict) -> List[DatabaseObject]:
         results.extend(parse_renderer(sub_renderer))
     return results
 
-
 def music_responsive_list_item_flex_column_renderer(renderer: dict) -> List[DatabaseObject]:
     return parse_run_list(renderer.get("text", {}).get("runs", []))
 
@@ -54,19 +53,11 @@ def music_responsive_list_item_renderer(renderer: dict) -> List[DatabaseObject]:
     for result in results:
         _map[type(result)].append(result)
 
-    for song in song_list:
+    if len(song_list) == 1:
+        song = song_list[0]
+        song.feature_artist_collection.extend(artist_list)
         song.album_collection.extend(album_list)
-        song.main_artist_collection.extend(artist_list)
+        return [song]
-
-    for album in album_list:
-        album.artist_collection.extend(artist_list)
-
-    if len(song_list) > 0:
-        return song_list
-    if len(album_list) > 0:
-        return album_list
-    if len(artist_list) > 0:
-        return artist_list
 
     return results
 

music_kraken/pages/youtube_music/_music_object_render.py

@@ -40,7 +40,7 @@ def parse_run_element(run_element: dict) -> Optional[DatabaseObject]:
     _temp_nav = run_element.get("navigationEndpoint", {})
     is_video = "watchEndpoint" in _temp_nav
 
-    navigation_endpoint = _temp_nav.get("watchEndpoint" if is_video else "browseEndpoint", {})
+    navigation_endpoint = _temp_nav.get("watchEndpoint", _temp_nav.get("browseEndpoint", {}))
     
     element_type = PageType.SONG
     page_type_string = navigation_endpoint.get("watchEndpointMusicSupportedConfigs", {}).get("watchEndpointMusicConfig", {}).get("musicVideoType", "")
@@ -51,7 +51,7 @@ def parse_run_element(run_element: dict) -> Optional[DatabaseObject]:
     except ValueError:
         return
     
-    element_id = navigation_endpoint.get("videoId" if is_video else "browseId")
+    element_id = navigation_endpoint.get("videoId", navigation_endpoint.get("browseId"))
     element_text =  run_element.get("text")
 
     if element_id is None or element_text is None:
@@ -60,7 +60,11 @@ def parse_run_element(run_element: dict) -> Optional[DatabaseObject]:
     
     if element_type == PageType.SONG or (element_type == PageType.VIDEO and not youtube_settings["youtube_music_clean_data"]) or (element_type == PageType.OFFICIAL_MUSIC_VIDEO and not youtube_settings["youtube_music_clean_data"]):
         source = Source(SOURCE_PAGE, f"https://music.youtube.com/watch?v={element_id}")
-        return Song(title=clean_song_title(element_text), source_list=[source])
+    
+        return Song(
+            title=clean_song_title(element_text), 
+            source_list=[source]
+        )
 
     if element_type == PageType.ARTIST or (element_type == PageType.CHANNEL and not youtube_settings["youtube_music_clean_data"]):
         source = Source(SOURCE_PAGE, f"https://music.youtube.com/channel/{element_id}")

music_kraken/pages/youtube_music/youtube_music.py

@@ -8,6 +8,7 @@ import json
 from dataclasses import dataclass
 import re
 from functools import lru_cache
+from collections import defaultdict
 
 import youtube_dl
 from youtube_dl.extractor.youtube import YoutubeIE
@@ -17,7 +18,7 @@ from ...utils.exception.config import SettingValueError
 from ...utils.config import main_settings, youtube_settings, logging_settings
 from ...utils.shared import DEBUG, DEBUG_YOUTUBE_INITIALIZING
 from ...utils.string_processing import clean_song_title
-from ...utils import get_current_millis
+from ...utils import get_current_millis, traverse_json_path
 
 from ...utils import dump_to_file
 
@@ -30,12 +31,16 @@ from ...objects import (
     Song,
     Album,
     Label,
-    Target
+    Target,
+    Lyrics,
+    FormattedText
 )
 from ...connection import Connection
+from ...utils.enums.album import AlbumType
 from ...utils.support_classes.download_result import DownloadResult
 
 from ._list_render import parse_renderer
+from ._music_object_render import parse_run_element
 from .super_youtube import SuperYouTube
 
 
@@ -162,6 +167,12 @@ class MusicKrakenYoutubeIE(YoutubeIE):
 
 
 
+ALBUM_TYPE_MAP = {
+    "Single": AlbumType.SINGLE,
+    "Album": AlbumType.STUDIO_ALBUM,
+    "EP": AlbumType.EP,
+}
+
 
 class YoutubeMusic(SuperYouTube):
     # CHANGE
@@ -401,7 +412,7 @@ class YoutubeMusic(SuperYouTube):
         return results
 
     def fetch_artist(self, source: Source, stop_at_level: int = 1) -> Artist:
-        artist = Artist()
+        artist = Artist(source_list=[source])
 
         # construct the request
         url = urlparse(source.url)
@@ -421,6 +432,19 @@ class YoutubeMusic(SuperYouTube):
         if DEBUG:
             dump_to_file(f"{browse_id}.json", r.text, is_json=True, exit_after_dump=False)
 
+        # artist details
+        data: dict = r.json()
+        header = data.get("header", {})
+        musicDetailHeaderRenderer = header.get("musicDetailHeaderRenderer", {})
+        
+        title_runs: List[dict] = musicDetailHeaderRenderer.get("title", {}).get("runs", [])
+        subtitle_runs: List[dict] = musicDetailHeaderRenderer.get("subtitle", {}).get("runs", [])
+
+        if len(title_runs) > 0:
+            artist.name = title_runs[0].get("text", artist.name)
+
+
+        # fetch discography
         renderer_list = r.json().get("contents", {}).get("singleColumnBrowseResultsRenderer", {}).get("tabs", [{}])[
             0].get("tabRenderer", {}).get("content", {}).get("sectionListRenderer", {}).get("contents", [])
 
@@ -465,6 +489,46 @@ class YoutubeMusic(SuperYouTube):
         if DEBUG:
             dump_to_file(f"{browse_id}.json", r.text, is_json=True, exit_after_dump=False)
 
+        data = r.json()
+
+        # album details
+        header = data.get("header", {})
+        musicDetailHeaderRenderer = header.get("musicDetailHeaderRenderer", {})
+        
+        title_runs: List[dict] = musicDetailHeaderRenderer.get("title", {}).get("runs", [])
+        subtitle_runs: List[dict] = musicDetailHeaderRenderer.get("subtitle", {}).get("runs", [])
+
+        if len(title_runs) > 0:
+            album.title = title_runs[0].get("text", album.title)
+
+        def other_parse_run(run: dict) -> str:
+            nonlocal album
+
+            if "text" not in run:
+                return
+            text = run["text"]
+
+            is_text_field = len(run.keys()) == 1
+
+            # regex that text is a year
+            if is_text_field and re.match(r"\d{4}", text):
+                album.date = ID3Timestamp.strptime(text, "%Y")
+                return
+
+            if text in ALBUM_TYPE_MAP:
+                album.album_type = ALBUM_TYPE_MAP[text]
+                return
+
+            if not is_text_field:
+                r = parse_run_element(run)
+                if r is not None:
+                    album.add_list_of_other_objects([r])
+                return
+
+        for _run in subtitle_runs:
+            other_parse_run(_run)
+
+        # tracklist
         renderer_list = r.json().get("contents", {}).get("singleColumnBrowseResultsRenderer", {}).get("tabs", [{}])[
             0].get("tabRenderer", {}).get("content", {}).get("sectionListRenderer", {}).get("contents", [])
 
@@ -472,20 +536,67 @@ class YoutubeMusic(SuperYouTube):
             for i, content in enumerate(renderer_list):
                 dump_to_file(f"{i}-album-renderer.json", json.dumps(content), is_json=True, exit_after_dump=False)
 
-        results = []
-
-        """
-        cant use fixed indices, because if something has no entries, the list dissappears
-        instead I have to try parse everything, and just reject community playlists and profiles.
-        """
 
         for renderer in renderer_list:
-            results.extend(parse_renderer(renderer))
+            album.add_list_of_other_objects(parse_renderer(renderer))
 
-        album.add_list_of_other_objects(results)
+        for song in album.song_collection:
+            for song_source in song.source_collection:
+                song_source.additional_data["playlist_id"] = browse_id
 
         return album
 
+    def fetch_lyrics(self, video_id: str, playlist_id: str = None) -> str:
+        request_data = {
+            "context": {**self.credentials.context, "adSignalsInfo": {"params": []}},
+            "videoId": video_id,
+        }
+        if playlist_id is not None:
+            request_data["playlistId"] = playlist_id
+        
+        tab_request = self.yt_music_connection.post(
+            url=get_youtube_url(path="/youtubei/v1/next", query=f"prettyPrint=false"),
+            json=request_data,
+            name=f"fetch_song_tabs_{video_id}.json",
+        )
+
+        if tab_request is None:
+            return None
+        
+        dump_to_file(f"fetch_song_tabs_{video_id}.json", tab_request.text, is_json=True, exit_after_dump=False)
+
+        tab_data: dict = tab_request.json()
+
+        tabs = traverse_json_path(tab_data, "contents.singleColumnMusicWatchNextResultsRenderer.tabbedRenderer.watchNextTabbedResultsRenderer.tabs", default=[])
+        browse_id = None
+        for tab in tabs:
+            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 None:
+            return None
+
+
+        r = self.yt_music_connection.post(
+            url=get_youtube_url(path="/youtubei/v1/browse", query=f"prettyPrint=false"),
+            json={
+                "browseId": browse_id,
+                "context": {**self.credentials.context, "adSignalsInfo": {"params": []}}
+            },
+            name=f"fetch_song_lyrics_{video_id}.json"
+        )
+
+        dump_to_file(f"fetch_song_lyrics_{video_id}.json", r.text, is_json=True, exit_after_dump=False)
+
+        data = r.json()
+        lyrics_text = traverse_json_path(data, "contents.sectionListRenderer.contents[0].musicDescriptionShelfRenderer.description.runs[0].text", default=None)
+        if lyrics_text is None:
+            return None
+        
+        return Lyrics(FormattedText(plain=lyrics_text))
+
 
     def fetch_song(self, source: Source, stop_at_level: int = 1) -> Song:
         ydl_res: dict = {}
@@ -498,7 +609,19 @@ class YoutubeMusic(SuperYouTube):
 
         self.fetch_media_url(source=source, ydl_res=ydl_res)
 
-        artist_name = ydl_res.get("artist", ydl_res.get("uploader", "")).rstrip(" - Topic")
+        artist_names = []
+        uploader = ydl_res.get("uploader", "")
+        if uploader.endswith(" - Topic"):
+            artist_names = [uploader.rstrip(" - Topic")]
+
+        artist_list = [
+            Artist(
+                name=name,
+                source_list=[Source(
+                    SourcePages.YOUTUBE_MUSIC, 
+                    f"https://music.youtube.com/channel/{ydl_res.get('channel_id', ydl_res.get('uploader_id', ''))}"
+            )]
+        ) for name in artist_names]
 
         album_list = []
         if "album" in ydl_res:
@@ -507,25 +630,57 @@ class YoutubeMusic(SuperYouTube):
                 date=ID3Timestamp.strptime(ydl_res.get("upload_date"), "%Y%m%d"),
             ))
 
-        return Song(
+        artist_name = artist_names[0] if len(artist_names) > 0 else None
+        song = Song(
             title=ydl_res.get("track", clean_song_title(ydl_res.get("title"), artist_name=artist_name)),
             note=ydl_res.get("descriptions"),
             album_list=album_list,
             length=int(ydl_res.get("duration", 0)) * 1000,
             artwork=Artwork(*ydl_res.get("thumbnails", [])),
-            main_artist_list=[Artist(
+            main_artist_list=artist_list,
-                name=artist_name,
-                source_list=[Source(
-                    SourcePages.YOUTUBE_MUSIC, 
-                    f"https://music.youtube.com/channel/{ydl_res.get('channel_id', ydl_res.get('uploader_id', ''))}"
-                )]
-            )],
             source_list=[Source(
                 SourcePages.YOUTUBE_MUSIC,
                 f"https://music.youtube.com/watch?v={ydl_res.get('id')}"
             ), source],
         )
 
+        # other song details
+        parsed_url = urlparse(source.url)
+        browse_id = parse_qs(parsed_url.query)['v'][0]
+        request_data = {
+            "captionParams": {},
+            "context": {**self.credentials.context, "adSignalsInfo": {"params": []}},
+            "videoId": browse_id,
+        }
+        if "playlist_id" in source.additional_data:
+            request_data["playlistId"] = source.additional_data["playlist_id"]
+        
+        initial_details = self.yt_music_connection.post(
+            url=get_youtube_url(path="/youtubei/v1/player", query=f"prettyPrint=false"),
+            json=request_data,
+            name=f"fetch_song_{browse_id}.json",
+        )
+
+        if initial_details is None:
+            return song
+
+        dump_to_file(f"fetch_song_{browse_id}.json", initial_details.text, is_json=True, exit_after_dump=False)
+        
+        data = initial_details.json()
+        video_details = data.get("videoDetails", {})
+
+        browse_id = video_details.get("videoId", browse_id)
+        song.title = video_details.get("title", song.title)
+        if video_details.get("isLiveContent", False):
+            for album in song.album_list:
+                album.album_type = AlbumType.LIVE_ALBUM
+        for thumbnail in video_details.get("thumbnails", []):
+            song.artwork.append(**thumbnail)
+
+        song.lyrics_collection.append(self.fetch_lyrics(browse_id, playlist_id=request_data.get("playlistId")))
+
+        return song
+
 
     def fetch_media_url(self, source: Source, ydl_res: dict = None) -> dict:
         def _get_best_format(format_list: List[Dict]) -> dict:

music_kraken/utils/__init__.py

@@ -3,24 +3,30 @@ from pathlib import Path
 import json
 import logging
 import inspect
+from typing import List, Union
 
 from .shared import DEBUG, DEBUG_LOGGING, DEBUG_DUMP, DEBUG_TRACE, DEBUG_OBJECT_TRACE, DEBUG_OBJECT_TRACE_CALLSTACK
 from .config import config, read_config, write_config
 from .enums.colors import BColors
 from .path_manager import LOCATIONS
+from .hacking import merge_args
 
 """
 IO functions
 """
 
 def _apply_color(msg: str, color: BColors) -> str:
+    if not isinstance(msg, str):
+        msg = str(msg)
+
     if color is BColors.ENDC:
         return msg
     return color.value + msg + BColors.ENDC.value
 
 
-def output(msg: str, color: BColors = BColors.ENDC):
+@merge_args(print)
-    print(_apply_color(msg, color))
+def output(*msg: List[str], color: BColors = BColors.ENDC, **kwargs):
+    print(*(_apply_color(s, color) for s in msg), **kwargs)
 
 
 def user_input(msg: str, color: BColors = BColors.ENDC):
@@ -71,6 +77,43 @@ def object_trace(obj):
 misc functions
 """
 
+def traverse_json_path(data, path: Union[str, List[str]], default=None):
+    """
+    Path parts are concatenated with . or wrapped with [""] for object keys and wrapped in [] for array indices.
+    """
+
+    if isinstance(path, str):
+        path = path.replace('["', '.').replace('"]', '.').replace("[", ".").replace("]", ".")
+        path = [p for p in path.split(".") if len(p) > 0]
+
+    if len(path) <= 0:
+        return data
+
+    current = path[0]
+    path = path[1:]
+
+    new_data = None
+
+    if isinstance(data, dict):        
+        new_data = data.get(current)
+
+    elif isinstance(data, list):
+        try:
+            new_data = data[int(current)]
+        except (IndexError, ValueError):
+            pass
+
+    if new_data is None:
+        return default
+
+    return traverse_json_path(data=new_data, path=path, default=default)
+
+_auto_increment = 0
+def generate_id() -> int:
+    global _auto_increment
+    _auto_increment += 1
+    return _auto_increment
+    
 def get_current_millis() -> int:
     dt = datetime.now()
     return int(dt.microsecond / 1_000)

music_kraken/utils/enums/source.py

@@ -9,42 +9,32 @@ class SourceTypes(Enum):
 
 
 class SourcePages(Enum):
-    YOUTUBE = "youtube"
+    YOUTUBE = "youtube", "https://www.youtube.com/"
-    MUSIFY = "musify"
+    MUSIFY = "musify", "https://musify.club/"
-    YOUTUBE_MUSIC = "youtube music"
+    YOUTUBE_MUSIC = "youtube music", "https://music.youtube.com/"
-    GENIUS = "genius"
+    GENIUS = "genius", "https://genius.com/"
-    MUSICBRAINZ = "musicbrainz"
+    MUSICBRAINZ = "musicbrainz", "https://musicbrainz.org/"
     ENCYCLOPAEDIA_METALLUM = "encyclopaedia metallum"
-    BANDCAMP = "bandcamp"
+    BANDCAMP = "bandcamp", "https://bandcamp.com/"
-    DEEZER = "deezer"
+    DEEZER = "deezer", "https://www.deezer.com/"
-    SPOTIFY = "spotify"
+    SPOTIFY = "spotify", "https://open.spotify.com/"
 
     # This has nothing to do with audio, but bands can be here
-    WIKIPEDIA = "wikipedia"
+    WIKIPEDIA = "wikipedia", "https://en.wikipedia.org/wiki/Main_Page"
-    INSTAGRAM = "instagram"
+    INSTAGRAM = "instagram", "https://www.instagram.com/"
-    FACEBOOK = "facebook"
+    FACEBOOK = "facebook", "https://www.facebook.com/"
-    TWITTER = "twitter"     # I will use nitter though lol
+    TWITTER = "twitter", "https://twitter.com/"
-    MYSPACE = "myspace"     # Yes somehow this ancient site is linked EVERYWHERE
+    MYSPACE = "myspace", "https://myspace.com/"     # Yes somehow this ancient site is linked EVERYWHERE
 
-    MANUAL = "manual"
+    MANUAL = "manual", ""
     
-    PRESET = "preset"
+    PRESET = "preset", ""
+
+    def __new__(cls, value, homepage = None):
+        member = object.__new__(cls)
+    
+        member._value_ = value
+        member.homepage = homepage
+
+        return member
         
-    @classmethod
-    def get_homepage(cls, attribute) -> str:
-        homepage_map = {
-            cls.YOUTUBE: "https://www.youtube.com/",
-            cls.MUSIFY: "https://musify.club/",
-            cls.MUSICBRAINZ: "https://musicbrainz.org/",
-            cls.ENCYCLOPAEDIA_METALLUM: "https://www.metal-archives.com/",
-            cls.GENIUS: "https://genius.com/",
-            cls.BANDCAMP: "https://bandcamp.com/",
-            cls.DEEZER: "https://www.deezer.com/",
-            cls.INSTAGRAM: "https://www.instagram.com/",
-            cls.FACEBOOK: "https://www.facebook.com/",
-            cls.SPOTIFY: "https://open.spotify.com/",
-            cls.TWITTER: "https://twitter.com/",
-            cls.MYSPACE: "https://myspace.com/",
-            cls.WIKIPEDIA: "https://en.wikipedia.org/wiki/Main_Page"
-        }
-        return homepage_map[attribute]

music_kraken/utils/hacking.py

@@ -78,7 +78,14 @@ def _merge(
         drop_args = []
     if drop_kwonlyargs is None:
         drop_kwonlyargs = []
+
+    is_builtin = False
+    try:
         source_spec = inspect.getfullargspec(source)
+    except TypeError:
+        is_builtin = True
+        source_spec = inspect.FullArgSpec(type(source).__name__, [], [], [], [], [], [])
+
     dest_spec = inspect.getfullargspec(dest)
 
     if source_spec.varargs or source_spec.varkw:
@@ -128,13 +135,15 @@ def _merge(
             'co_kwonlyargcount': len(kwonlyargs_merged),
             'co_posonlyargcount': dest.__code__.co_posonlyargcount,
             'co_nlocals': len(args_all),
-            'co_flags': source.__code__.co_flags,
             'co_varnames': args_all,
             'co_filename': dest.__code__.co_filename,
             'co_name': dest.__code__.co_name,
             'co_firstlineno': dest.__code__.co_firstlineno,
         }
 
+        if hasattr(source, "__code__"):
+            replace_kwargs['co_flags'] = source.__code__.co_flags
+
         if PY310:
             replace_kwargs['co_linetable'] = dest.__code__.co_linetable
         else:
@@ -151,7 +160,7 @@ def _merge(
             len(kwonlyargs_merged),
             _blank.__code__.co_nlocals,
             _blank.__code__.co_stacksize,
-            source.__code__.co_flags,
+            source.__code__.co_flags if hasattr(source, "__code__") else dest.__code__.co_flags,
             _blank.__code__.co_code, (), (),
             args_all, dest.__code__.co_filename,
             dest.__code__.co_name,
@@ -171,6 +180,9 @@ def _merge(
         dest_ret = dest.__annotations__['return']
 
     for v in ('__kwdefaults__', '__annotations__'):
+        if not hasattr(source, v):
+            continue
+
         out = getattr(source, v)
         if out is None:
             out = {}

music_kraken/utils/shared.py

@@ -20,6 +20,7 @@ DEBUG_OBJECT_TRACE_CALLSTACK = DEBUG_OBJECT_TRACE and False
 DEBUG_YOUTUBE_INITIALIZING = DEBUG and False
 DEBUG_PAGES = DEBUG and False
 DEBUG_DUMP = DEBUG and False
+DEBUG_PRINT_ID = DEBUG and True
 
 if DEBUG:
     print("DEBUG ACTIVE")

music_kraken/utils/string_processing.py

@@ -6,6 +6,7 @@ from functools import lru_cache
 from transliterate.exceptions import LanguageDetectionError
 from transliterate import translit
 from pathvalidate import sanitize_filename
+from urllib.parse import urlparse, ParseResult, parse_qs
 
 
 COMMON_TITLE_APPENDIX_LIST: Tuple[str, ...] = (
@@ -21,6 +22,7 @@ def unify(string: str) -> str:
     returns a unified str, to make comparisons easy.
     a unified string has the following attributes:
     - is lowercase
+    - is transliterated to Latin characters from e.g. Cyrillic
     """
 
     if string is None:
@@ -31,7 +33,8 @@ def unify(string: str) -> str:
     except LanguageDetectionError:
         pass
     
-    return string.lower()
+    string = unify_punctuation(string)
+    return string.lower().strip()
 
 
 def fit_to_file_system(string: Union[str, Path], hidden_ok: bool = False) -> Union[str, Path]:
@@ -49,7 +52,14 @@ def fit_to_file_system(string: Union[str, Path], hidden_ok: bool = False) -> Uni
             string = string[1:]
 
         string = string.replace("/", "_").replace("\\", "_")
+
+        try:
+            string = translit(string, reversed=True)
+        except LanguageDetectionError:
+            pass
+        
         string = sanitize_filename(string)
+
         return string
 
     if isinstance(string, Path):
@@ -127,13 +137,45 @@ UNIFY_TO = " "
 ALLOWED_LENGTH_DISTANCE = 20
 
 
-def unify_punctuation(to_unify: str) -> str:
+def unify_punctuation(to_unify: str, unify_to: str = UNIFY_TO) -> str:
     for char in string.punctuation:
-        to_unify = to_unify.replace(char, UNIFY_TO)
+        to_unify = to_unify.replace(char, unify_to)
     return to_unify
 
-def hash_url(url: str) -> int:
+@lru_cache(maxsize=128)
-    return url.strip().lower().lstrip("https://").lstrip("http://")
+def hash_url(url: Union[str, ParseResult]) -> str:
+    if isinstance(url, str): 
+        url = urlparse(url)
+
+    unify_to = "-"
+
+    def unify_part(part: str) -> str:
+        nonlocal unify_to
+        return unify_punctuation(part.lower(), unify_to=unify_to).strip(unify_to)
+
+    # netloc
+    netloc = unify_part(url.netloc)
+    if netloc.startswith("www" + unify_to):
+        netloc = netloc[3 + len(unify_to):]
+
+    # query
+    query = url.query
+    query_dict: Optional[dict] = None
+    try:
+        query_dict: dict = parse_qs(url.query, strict_parsing=True)
+    except ValueError:
+        # the query couldn't be parsed
+        pass
+
+    if isinstance(query_dict, dict):
+        # sort keys alphabetically
+        query = ""
+        for key, value in sorted(query_dict.items(), key=lambda i: i[0]):
+            query += f"{key.strip()}-{''.join(i.strip() for i in value)}"
+
+    r = f"{netloc}_{unify_part(url.path)}_{unify_part(query)}"
+    r = r.lower().strip()
+    return r
 
 
 def remove_feature_part_from_track(title: str) -> str:

tests/test_hash_url.py

@@ -0,0 +1,35 @@
+import unittest
+
+from music_kraken.utils.string_processing import hash_url
+
+
+class TestCollection(unittest.TestCase):
+    def test_remove_schema(self):
+        self.assertFalse(hash_url("https://www.youtube.com/watch?v=3jZ_D3ELwOQ").startswith("https"))
+        self.assertFalse(hash_url("ftp://www.youtube.com/watch?v=3jZ_D3ELwOQ").startswith("https"))
+        self.assertFalse(hash_url("sftp://www.youtube.com/watch?v=3jZ_D3ELwOQ").startswith("https"))
+        self.assertFalse(hash_url("http://www.youtube.com/watch?v=3jZ_D3ELwOQ").startswith("https"))
+
+    def test_no_punctuation(self):
+        self.assertNotIn(hash_url("https://www.you_tube.com/watch?v=3jZ_D3ELwOQ"), "you_tube")
+        self.assertNotIn(hash_url("https://docs.gitea.com/next/install.ation/comparison"), ".")
+
+    def test_three_parts(self):
+        """
+        The url is parsed into three parts [netloc; path; query]
+        Which are then appended to each other with an underscore between.
+        """
+
+        self.assertTrue(hash_url("https://duckduckgo.com/?t=h_&q=dfasf&ia=web").count("_") == 2)
+
+    def test_sort_query(self):
+        """
+        The query is sorted alphabetically
+        """
+        hashed = hash_url("https://duckduckgo.com/?t=h_&q=dfasf&ia=web")
+        sorted_keys = ["ia-", "q-", "t-"]
+
+        self.assertTrue(hashed.index(sorted_keys[0]) < hashed.index(sorted_keys[1]) < hashed.index(sorted_keys[2]))
+
+if __name__ == "__main__":
+    unittest.main()