Merge pull request 'fix/clean_feature_artists' (#38) from fix/clean_feature_artists into experimental

Reviewed-on: #38

.vscode/launch.json

@@ -0,0 +1,22 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python Debugger: Current File",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "${file}",
+            "console": "integratedTerminal"
+        },
+        {
+            "name": "Python Debugger: Download script",
+            "type": "debugpy",
+            "request": "launch",
+            "program": "development/actual_donwload.py",
+            "console": "integratedTerminal"
+        }
+    ]
+}

.vscode/settings.json

@@ -19,14 +19,20 @@
         "albumsort",
         "APIC",
         "Bandcamp",
+        "bitrate",
+        "DEEZER",
         "dotenv",
         "encyclopaedia",
         "ENDC",
         "Gitea",
+        "iframe",
+        "isrc",
         "levenshtein",
         "metallum",
+        "MUSICBRAINZ",
         "musify",
         "OKBLUE",
+        "OKGREEN",
         "pathvalidate",
         "Referer",
         "sponsorblock",

development/actual_donwload.py

@@ -6,9 +6,9 @@ logging.getLogger().setLevel(logging.DEBUG)
 
 if __name__ == "__main__":
     commands = [
-        "s: #a Crystal F",
-        "10",
-        "2",
+        "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})")
@@ -47,7 +47,7 @@ def correct_codec(target: Target, bitrate_kb: int = main_settings["bitrate"], au
 
     # run the ffmpeg command with a progressbar
     ff = FfmpegProgress(ffmpeg_command)
-    with tqdm(total=100, desc=f"removing {len(interval_list)} segments") as pbar:
+    with tqdm(total=100, desc=f"processing") as pbar:
         for progress in ff.run_command_with_progress():
             pbar.update(progress-pbar.n)
 

music_kraken/audio/metadata.py

@@ -1,5 +1,5 @@
 import mutagen
-from mutagen.id3 import ID3, Frame, APIC
+from mutagen.id3 import ID3, Frame, APIC, USLT
 from pathlib import Path
 from typing import List
 import logging
@@ -7,6 +7,7 @@ from PIL import Image
 
 from ..utils.config import logging_settings, main_settings
 from ..objects import Song, Target, Metadata
+from ..objects.metadata import Mapping
 from ..connection import Connection
 
 LOGGER = logging_settings["tagging_logger"]
@@ -105,8 +106,11 @@ def write_metadata_to_target(metadata: Metadata, target: Target, song: Song):
                 data=converted_target.read_bytes(),
             )
         )
-
-        mutagen_file = mutagen.File(target.file_path)
+        id3_object.frames.delall("USLT")
+        uslt_val = metadata.get_id3_value(Mapping.UNSYNCED_LYRICS)
+        id3_object.frames.add(
+            USLT(encoding=3, lang=u'eng', desc=u'desc', text=uslt_val)
+        )
 
     id3_object.add_metadata(metadata)
     id3_object.save()

music_kraken/cli/main_downloader.py

@@ -166,9 +166,9 @@ class Downloader:
         self.genre = genre or get_genre()
         self.process_metadata_anyway = process_metadata_anyway
 
-        print()
-        print(f"Downloading to: \"{self.genre}\"")
-        print()
+        output()
+        output(f"Downloading to: \"{self.genre}\"", color=BColors.HEADER)
+        output()
 
     def print_current_options(self):
         self.page_dict = dict()
@@ -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:
@@ -312,16 +310,14 @@ class Downloader:
 
     def download(self, data_objects: List[DatabaseObject], **kwargs) -> bool:
         output()
-        if len(data_objects) == 1:
-            output(f"Downloading {data_objects[0].option_string}...", color=BColors.BOLD)
-        else:
-            output(f"Downloading {len(data_objects)} objects...", *("- " + o.option_string for o in data_objects), color=BColors.BOLD, sep="\n")
+        if len(data_objects) > 1:
+            output(f"Downloading  {len(data_objects)} objects...", *("- " + o.option_string for o in data_objects), color=BColors.BOLD, sep="\n")
 
         _result_map: Dict[DatabaseObject, DownloadResult] = dict()
 
         for database_object in data_objects:
             r = self.pages.download(
-                music_object=database_object, 
+                data_object=database_object, 
                 genre=self.genre, 
                 **kwargs
             )
@@ -358,37 +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
@@ -401,6 +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/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

@@ -0,0 +1,21 @@
+from dataclasses import dataclass, field
+from typing import Set
+
+from ..utils.config import main_settings
+from ..utils.enums.album import AlbumType
+
+
+@dataclass
+class FetchOptions:
+    download_all: bool = False
+    album_type_blacklist: Set[AlbumType] = field(default_factory=lambda: set(AlbumType(a) for a in main_settings["album_type_blacklist"]))
+
+
+@dataclass
+class DownloadOptions:
+    download_all: bool = False
+    album_type_blacklist: Set[AlbumType] = field(default_factory=lambda: set(AlbumType(a) for a in main_settings["album_type_blacklist"]))
+
+    download_again_if_found: bool = False
+    process_audio_if_found: bool = False
+    process_metadata_if_found: bool = True

music_kraken/download/page_attributes.py

@@ -1,12 +1,32 @@
-from typing import Tuple, Type, Dict, Set
+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
-from ..objects import DatabaseObject, Source
-
-from ..utils.config import youtube_settings
-from ..utils.enums.source import SourcePages
+from ..objects import (
+    DatabaseObject as DataObject,
+    Collection,
+    Target,
+    Source,
+    Options,
+    Song,
+    Album,
+    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, 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
+from ..utils.exception import MKMissingNameException
 from ..utils.exception.download import UrlNotFoundException
 from ..utils.shared import DEBUG_PAGES
 
@@ -34,6 +54,13 @@ SHADY_PAGES: Set[Type[Page]] = {
     Musify,
 }
 
+fetch_map = {
+    Song: "fetch_song",
+    Album: "fetch_album",
+    Artist: "fetch_artist",
+    Label: "fetch_label",
+}
+
 if DEBUG_PAGES:
     DEBUGGING_PAGE = Bandcamp
     print(f"Only downloading from page {DEBUGGING_PAGE}.")
@@ -43,10 +70,15 @@ if DEBUG_PAGES:
 
 
 class Pages:
-    def __init__(self, exclude_pages: Set[Type[Page]] = None, exclude_shady: bool = False) -> None:
+    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()
+
         # initialize all page instances
         self._page_instances: Dict[Type[Page], Page] = dict()
-        self._source_to_page: Dict[SourcePages, Type[Page]] = dict()
+        self._source_to_page: Dict[SourceType, Type[Page]] = dict()
         
         exclude_pages = exclude_pages if exclude_pages is not None else set()
         
@@ -61,14 +93,19 @@ class Pages:
         
         self._pages_set: Set[Type[Page]] = ALL_PAGES.difference(exclude_pages)
         self.pages: Tuple[Type[Page], ...] = _set_to_tuple(self._pages_set)
-                                                           
+
         self._audio_pages_set: Set[Type[Page]] = self._pages_set.intersection(AUDIO_PAGES)
         self.audio_pages: Tuple[Type[Page], ...] = _set_to_tuple(self._audio_pages_set)
         
         for page_type in self.pages:
-            self._page_instances[page_type] = page_type()
+            self._page_instances[page_type] = page_type(fetch_options=self.fetch_options, download_options=self.download_options)
             self._source_to_page[page_type.SOURCE_TYPE] = page_type
-            
+
+    def _get_page_from_enum(self, source_page: SourceType) -> Page:
+        if source_page not in self._source_to_page:
+            return None
+        return self._page_instances[self._source_to_page[source_page]]
+
     def search(self, query: Query) -> SearchResults:
         result = SearchResults()
         
@@ -80,54 +117,211 @@ class Pages:
             
         return result
     
-    def fetch_details(self, music_object: DatabaseObject, stop_at_level: int = 1) -> DatabaseObject:
-        if not isinstance(music_object, INDEPENDENT_DB_OBJECTS):
-            return music_object
+    def fetch_details(self, data_object: DataObject, stop_at_level: int = 1, **kwargs) -> DataObject:
+        if not isinstance(data_object, INDEPENDENT_DB_OBJECTS):
+            return data_object
         
-        for source_page in music_object.source_collection.source_pages:
-            if source_page not in self._source_to_page:
-                continue
+        source: Source
+        for source in data_object.source_collection.get_sources(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)
 
-            page_type = self._source_to_page[source_page]
-            
-            if page_type in self._pages_set:
-                music_object.merge(self._page_instances[page_type].fetch_details(music_object=music_object, stop_at_level=stop_at_level))
+        return data_object
+
+    def fetch_from_source(self, source: Source, **kwargs) -> Optional[DataObject]:
+        if not source.has_page:
+            return None
         
-        return music_object
+        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
 
-    def is_downloadable(self, music_object: DatabaseObject) -> 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])
+        func = getattr(source.page, fetch_map[source_type])
+        
+        # fetching the data object and marking it as fetched
+        data_object: DataObject = func(source=source, **kwargs)
+        data_object.mark_as_fetched(source.hash_url)
+        return data_object
 
-        audio_pages = self._audio_pages_set.intersection(_page_types)
-        return len(audio_pages) > 0
+    def fetch_from_url(self, url: str) -> Optional[DataObject]:
+        source = Source.match_url(url, ALL_SOURCE_TYPES.MANUAL)
+        if source is None:
+            return None
+        
+        return self.fetch_from_source(source=source)
     
-    def download(self, music_object: DatabaseObject, genre: str, download_all: bool = False, process_metadata_anyway: bool = False) -> DownloadResult:
-        if not isinstance(music_object, INDEPENDENT_DB_OBJECTS):
-            return DownloadResult(error_message=f"{type(music_object).__name__} can't be downloaded.")
-
-        self.fetch_details(music_object)
-
-        _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)
+    def _skip_object(self, data_object: DataObject) -> bool:
+        if isinstance(data_object, Album):
+            if not self.download_options.download_all and data_object.album_type in self.download_options.album_type_blacklist:
+                return True
         
-        for download_page in audio_pages:
-            return self._page_instances[download_page].download(music_object=music_object, genre=genre, download_all=download_all, process_metadata_anyway=process_metadata_anyway)
-        
-        return DownloadResult(error_message=f"No audio source has been found for {music_object}.")
+        return False
 
-    def fetch_url(self, url: str, stop_at_level: int = 2) -> Tuple[Type[Page], DatabaseObject]:
-        source = Source.match_url(url, SourcePages.MANUAL)
+    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):
+            to_fetch: List[DataObject] = [data_object]
+
+            while len(to_fetch) > 0:
+                new_to_fetch = []
+                for d in to_fetch:
+                    if self._skip_object(d):
+                        continue
+
+                    self.fetch_details(d)
+
+                    for c in d.get_parent_collections():
+                        new_to_fetch.extend(c)
+
+                to_fetch = new_to_fetch
+            
+            kwargs["fetched_upwards"] = True
+        
+        # download all children
+        download_result: DownloadResult = DownloadResult()
+        for c in data_object.get_child_collections():
+            for d in c:
+                if self._skip_object(d):
+                    continue
+
+                download_result.merge(self.download(d, genre, **kwargs))
+
+        # actually download if the object is a song
+        if isinstance(data_object, Song):
+            """
+            TODO
+            add the traced artist and album to the naming.
+            I am able to do that, because duplicate values are removed later on.
+            """
+
+            self._download_song(data_object, naming={
+                "genre": [genre],
+                "audio_format": [main_settings["audio_format"]],
+            })
+
+        return download_result
+
+    def _extract_fields_from_template(self, path_template: str) -> Set[str]:
+        return set(re.findall(r"{([^}]+)}", path_template))
+
+    def _parse_path_template(self, path_template: str, naming: Dict[str, List[str]]) -> str:
+        field_names: Set[str] = self._extract_fields_from_template(path_template)
+        
+        for field in field_names:
+            if len(naming[field]) == 0:
+                raise MKMissingNameException(f"Missing field for {field}.")
+
+            path_template = path_template.replace(f"{{{field}}}", naming[field][0])
+
+        return path_template
+
+    def _download_song(self, song: Song, naming: dict) -> DownloadOptions:
+        """
+        TODO
+        Search the song in the file system.
+        """
+        r = DownloadResult(total=1)
+        
+        # pre process the data recursively
+        song.compile()
+        
+        # manage the naming
+        naming: Dict[str, List[str]] = defaultdict(list, naming)
+        naming["song"].append(song.title_value)
+        naming["isrc"].append(song.isrc)
+        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.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_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(value))
+        song.genre = naming["genre"][0]
+
+        # manage the targets
+        tmp: Target = Target.temp(file_extension=main_settings["audio_format"])
+
+        song.target_collection.append(Target(
+            relative_to_music_dir=True,
+            file_path=Path(
+                self._parse_path_template(main_settings["download_path"], naming=naming), 
+                self._parse_path_template(main_settings["download_file"], naming=naming),
+            )
+        ))
+        for target in song.target_collection:
+            if target.exists:
+                output(f'{target.file_path} {BColors.OKGREEN.value}[already exists]', color=BColors.GREY)
+                r.found_on_disk += 1
+
+                if not self.download_options.download_again_if_found:
+                    target.copy_content(tmp)
+            else:
+                target.create_path()
+                output(f'{target.file_path}', color=BColors.GREY)
+
+        # 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, ALL_SOURCE_TYPES.MANUAL)
         
         if source is None:
             raise UrlNotFoundException(url=url)
         
-        _actual_page = self._source_to_page[source.page_enum]
+        _actual_page = self._source_to_page[source.source_type]
         
         return _actual_page, self._page_instances[_actual_page].fetch_object_from_source(source=source, stop_at_level=stop_at_level)

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 SourcePages
 from ..pages import Page, EncyclopaediaMetallum, Musify
 
 

music_kraken/objects/__init__.py

@@ -3,7 +3,7 @@ from .option import Options
 
 from .metadata import Metadata, Mapping as ID3Mapping, ID3Timestamp
 
-from .source import Source, SourcePages, SourceTypes
+from .source import Source, SourceType
 
 from .song import (
     Song,
@@ -24,4 +24,4 @@ from .parents import OuterProxy
 
 from .artwork import Artwork
 
-DatabaseObject = TypeVar('T', bound=OuterProxy)
+DatabaseObject = OuterProxy

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,
@@ -153,11 +153,14 @@ class Collection(Generic[T]):
 
         if other is None:
             return
+        if not other._inner._has_data:
+            return
         if other.id in self._indexed_from_id:
             return
 
         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

@@ -32,14 +32,19 @@ class FormattedText:
         if self.is_empty and other.is_empty:
             return True
 
-        return self.doc == other.doc
+        return self.html == other.html
 
     @property
     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/metadata.py

@@ -92,7 +92,7 @@ class Mapping(Enum):
         key = attribute.value
 
         if key[0] == 'T':
-            # a text fiel
+            # a text field
             return cls.get_text_instance(key, value)
         if key[0] == "W":
             # an url field
@@ -355,7 +355,12 @@ class Metadata:
             return None
 
         list_data = self.id3_dict[field]
-
+        #correct duplications
+        correct_list_data = list()
+        for data in list_data:
+            if data not in correct_list_data:
+                correct_list_data.append(data)
+        list_data = correct_list_data
         # convert for example the time objects to timestamps
         for i, element in enumerate(list_data):
             # for performance’s sake I don't do other checks if it is already the right type
@@ -368,7 +373,7 @@ class Metadata:
             if type(element) == ID3Timestamp:
                 list_data[i] = element.timestamp
                 continue
-
+            
         """
         Version 2.4 of the specification prescribes that all text fields (the fields that start with a T, except for TXXX) can contain multiple values separated by a null character. 
         Thus if above conditions are met, I concatenate the list,
@@ -376,7 +381,7 @@ class Metadata:
         """
         if field.value[0].upper() == "T" and field.value.upper() != "TXXX":
             return self.NULL_BYTE.join(list_data)
-
+        
         return list_data[0]
 
     def get_mutagen_object(self, field):
@@ -395,6 +400,5 @@ class Metadata:
         """
         # set the tagging timestamp to the current time
         self.__setitem__(Mapping.TAGGING_TIME, [ID3Timestamp.now()])
-
         for field in self.id3_dict:
             yield self.get_mutagen_object(field)

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
@@ -30,6 +31,8 @@ class InnerData:
 
     _refers_to_instances: set = None
     _is_in_collection: set = None
+
+    _has_data: bool = False
     """
     Attribute versions keep track, of if the attribute has been changed.
     """
@@ -48,9 +51,19 @@ class InnerData:
         for key, value in kwargs.items():
             if hasattr(value, "__is_collection__"):
                 value._collection_for[self] = key
-                
+            
             self.__setattr__(key, value)
 
+            if self._has_data:
+                continue
+    
+    def __setattr__(self, key: str, value):
+        if self._has_data or not hasattr(self, "_default_values"):
+            return super().__setattr__(key, value)
+        
+        super().__setattr__("_has_data", not (key in self._default_values and self._default_values[key] == value))
+        return super().__setattr__(key, value)
+
     def __hash__(self):
         return self.id
 
@@ -87,7 +100,9 @@ class OuterProxy:
     Wraps the inner data, and provides apis, to naturally access those values.
     """
 
-    _default_factories: dict = {}
+    source_collection: SourceCollection
+
+    _default_factories: dict = {"source_collection": SourceCollection}
     _outer_attribute: Set[str] = {"options", "metadata", "indexing_values", "option_string"}
 
     DOWNWARDS_COLLECTION_STRING_ATTRIBUTES = tuple()
@@ -191,6 +206,7 @@ class OuterProxy:
         if __other is None:
             return
 
+        a_id = self.id
 
         a = self
         b = __other
@@ -213,6 +229,8 @@ class OuterProxy:
         a._inner.__merge__(old_inner, **kwargs)
         del old_inner
 
+        self.id = a_id
+
     def __merge__(self, __other: Optional[OuterProxy], **kwargs):
         self.merge(__other, **kwargs)
 
@@ -289,10 +307,49 @@ class OuterProxy:
 
         return r
 
+    @property
+    def root_collections(self) -> List[Collection]:
+        if len(self.UPWARDS_COLLECTION_STRING_ATTRIBUTES) == 0:
+            return [self]
+
+        r = []
+        for collection_string_attribute in self.UPWARDS_COLLECTION_STRING_ATTRIBUTES:
+            r.extend(self.__getattribute__(collection_string_attribute))
+
+        return r
+
+    def _compile(self, **kwargs):
+        pass
+
+    def compile(self, from_root=False, **kwargs):
+        # compile from the root
+        if not from_root:
+            for c in self.root_collections:
+                c.compile(from_root=True, **kwargs)
+            return
+
+        self._compile(**kwargs)
+
+        for c_attribute in self.DOWNWARDS_COLLECTION_STRING_ATTRIBUTES:
+            for c in self.__getattribute__(c_attribute):
+                c.compile(from_root=True, **kwargs)
+
     TITEL = "id"
     @property
     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})"
+
+    def get_child_collections(self):
+        for collection_string_attribute in self.DOWNWARDS_COLLECTION_STRING_ATTRIBUTES:
+            yield self.__getattribute__(collection_string_attribute)
+
+    def get_parent_collections(self):
+        for collection_string_attribute in self.UPWARDS_COLLECTION_STRING_ATTRIBUTES:
+            yield self.__getattribute__(collection_string_attribute)

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]
 
@@ -107,11 +107,11 @@ class Song(Base):
         "lyrics_collection": Collection,
         "artwork": Artwork,
 
-        "main_artist_collection": Collection,
         "album_collection": Collection,
+        "artist_collection": Collection,
         "feature_artist_collection": Collection,
 
-        "title": lambda: "",
+        "title": lambda: None,
         "unified_title": lambda: None,
         "isrc": lambda: None,
         "genre": 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
@@ -368,14 +370,37 @@ 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:
             r += f" with {len(self.song_collection)} songs"
         return r
 
+    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
+        if len(self.song_collection) == 1:
+            self.album_type = AlbumType.SINGLE
+            return
+
+        # if the album already has an album type, we don't need to do anything
+        if self.album_type is not AlbumType.OTHER:
+            return
+
+        # for information on EP's I looked at https://www.reddit.com/r/WeAreTheMusicMakers/comments/a354ql/whats_the_cutoff_length_between_ep_and_album/
+        if len(self.song_collection) < 9:
+            self.album_type = AlbumType.EP
+            return
+
     def update_tracksort(self):
         """
         This updates the tracksort attributes, of the songs in
@@ -401,6 +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:
@@ -445,8 +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 = {
@@ -460,8 +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,
     }
@@ -482,7 +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:
@@ -492,18 +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
         }
@@ -511,33 +540,32 @@ 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:
             self.label_collection.extend(object_list)
             return
 
+    def _compile(self):
+        self.update_albumsort()
+
     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.
 
         :return:
         """
-        if len(self.main_album_collection) <= 0:
-            return
-
         type_section: Dict[AlbumType, int] = defaultdict(lambda: 2, {
             AlbumType.OTHER: 0,  # if I don't know it, I add it to the first section
             AlbumType.STUDIO_ALBUM: 0,
@@ -549,7 +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:
@@ -580,7 +608,7 @@ class Artist(Base):
             album_list.extend(sections[section_index])
 
         # replace the old collection with the new one
-        self.main_album_collection: Collection = Collection(data=album_list, element_type=Album)
+        self.album_collection._data = album_list
 
     INDEX_DEPENDS_ON = ("name", "source_collection", "contact_collection")
     @property
@@ -602,15 +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
@@ -697,4 +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

@@ -2,40 +2,48 @@ 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.source import SourcePages, SourceTypes
+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
 
 
 
 @dataclass
 class Source:
-    page_enum: SourcePages
+    source_type: SourceType
     url: str
-    referrer_page: SourcePages = None
+    referrer_page: SourceType = None
     audio_url: Optional[str] = None
 
     additional_data: dict = field(default_factory=dict)
 
     def __post_init__(self):
-        self.referrer_page = self.referrer_page or self.page_enum
-    
-    @property
-    def parsed_url(self) -> ParseResult:
-        return urlparse(self.url)
+        self.referrer_page = self.referrer_page or self.source_type
 
     @classmethod
-    def match_url(cls, url: str, referrer_page: SourcePages) -> Optional[Source]:
+    def match_url(cls, url: str, referrer_page: SourceType) -> Optional[Source]:
         """
         this shouldn't be used, unless you are not certain what the source is for
         the reason is that it is more inefficient
@@ -44,38 +52,50 @@ class Source:
         url = parsed_url.geturl()
         
         if "musify" in parsed_url.netloc:
-            return cls(SourcePages.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(SourcePages.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(SourcePages.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(SourcePages.SPOTIFY, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.SPOTIFY, url, referrer_page=referrer_page)
 
         if "bandcamp" in url:
-            return cls(SourcePages.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(SourcePages.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(SourcePages.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(SourcePages.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(SourcePages.INSTAGRAM, url, referrer_page=referrer_page)
+            return cls(ALL_SOURCE_TYPES.INSTAGRAM, url, referrer_page=referrer_page)
 
         if url.startswith("https://twitter"):
-            return cls(SourcePages.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(SourcePages.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:
@@ -89,37 +109,82 @@ class Source:
         return r
 
     def __repr__(self) -> str:
-        return f"Src({self.page_enum.value}: {shorten_display_url(self.url)})"
+        return f"Src({self.source_type.value}: {shorten_display_url(self.url)})"
 
     def __merge__(self, other: Source, **kwargs):
         if self.audio_url is None:
             self.audio_url = other.audio_url
         self.additional_data.update(other.additional_data)
 
-    page_str = property(fget=lambda self: self.page_enum.value)
+    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[SourcePages, 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: SourcePages) -> 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.page_enum].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[SourcePages]:
-        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/objects/target.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from pathlib import Path
-from typing import List, Tuple, TextIO, Union
+from typing import List, Tuple, TextIO, Union, Optional
 import logging
 import random
 import requests
@@ -31,7 +31,10 @@ class Target(OuterProxy):
     }
 
     @classmethod
-    def temp(cls, name: str = str(random.randint(0, HIGHEST_ID))) -> P:
+    def temp(cls, name: str = str(random.randint(0, HIGHEST_ID)), file_extension: Optional[str] = None) -> P:
+        if file_extension is not None:
+            name = f"{name}.{file_extension}"
+
         return cls(main_settings["temp_directory"] / name)
 
     # This is automatically generated

music_kraken/pages/abstract.py

@@ -3,8 +3,9 @@ import random
 import re
 from copy import copy
 from pathlib import Path
-from typing import Optional, Union, Type, Dict, Set, List, Tuple
+from typing import Optional, Union, Type, Dict, Set, List, Tuple, TypedDict
 from string import Formatter
+from dataclasses import dataclass, field
 
 import requests
 from bs4 import BeautifulSoup
@@ -21,85 +22,45 @@ from ..objects import (
     Collection,
     Label,
 )
-from ..utils.enums.source import SourcePages
+from ..utils.enums import SourceType
 from ..utils.enums.album import AlbumType
 from ..audio import write_metadata_to_target, correct_codec
 from ..utils.config import main_settings
 from ..utils.support_classes.query import Query
 from ..utils.support_classes.download_result import DownloadResult
 from ..utils.string_processing import fit_to_file_system
-from ..utils import trace
+from ..utils import trace, output, BColors
 
 INDEPENDENT_DB_OBJECTS = Union[Label, Album, Artist, Song]
 INDEPENDENT_DB_TYPES = Union[Type[Song], Type[Album], Type[Artist], Type[Label]]
 
+@dataclass
+class FetchOptions:
+    download_all: bool = False
+    album_type_blacklist: Set[AlbumType] = field(default_factory=lambda: set(AlbumType(a) for a in main_settings["album_type_blacklist"]))
 
-class NamingDict(dict):
-    CUSTOM_KEYS: Dict[str, str] = {
-        "label": "label.name",
-        "artist": "artist.name",
-        "song": "song.title",
-        "isrc": "song.isrc",
-        "album": "album.title",
-        "album_type": "album.album_type_string"
-    }
-
-    def __init__(self, values: dict, object_mappings: Dict[str, DatabaseObject] = None):
-        self.object_mappings: Dict[str, DatabaseObject] = object_mappings or dict()
-
-        super().__init__(values)
-        self["audio_format"] = main_settings["audio_format"]
-
-    def add_object(self, music_object: DatabaseObject):
-        self.object_mappings[type(music_object).__name__.lower()] = music_object
-
-    def copy(self) -> dict:
-        return type(self)(super().copy(), self.object_mappings.copy())
-
-    def __getitem__(self, key: str) -> str:
-        return fit_to_file_system(super().__getitem__(key))
-
-    def default_value_for_name(self, name: str) -> str:
-        return f'Various {name.replace("_", " ").title()}'
-
-    def __missing__(self, key: str) -> str:
-        if "." not in key:
-            if key not in self.CUSTOM_KEYS:
-                return self.default_value_for_name(key)
-
-            key = self.CUSTOM_KEYS[key]
-
-        frag_list = key.split(".")
-
-        object_name = frag_list[0].strip().lower()
-        attribute_name = frag_list[-1].strip().lower()
-
-        if object_name not in self.object_mappings:
-            return self.default_value_for_name(attribute_name)
-
-        music_object = self.object_mappings[object_name]
-        try:
-            value = getattr(music_object, attribute_name)
-            if value is None:
-                return self.default_value_for_name(attribute_name)
-
-            return str(value)
-
-        except AttributeError:
-            return self.default_value_for_name(attribute_name)
+@dataclass
+class DownloadOptions:
+    download_all: bool = False
+    album_type_blacklist: Set[AlbumType] = field(default_factory=lambda: set(AlbumType(a) for a in main_settings["album_type_blacklist"]))
 
+    process_audio_if_found: bool = False
+    process_metadata_if_found: bool = True
 
 class Page:
-    """
-    This is an abstract class, laying out the 
-    functionality for every other class fetching something
-    """
+    SOURCE_TYPE: SourceType
+    LOGGER: logging.Logger
 
-    SOURCE_TYPE: SourcePages
-    LOGGER = logging.getLogger("this shouldn't be used")
+    def __new__(cls, *args, **kwargs):
+        cls.LOGGER = logging.getLogger(cls.__name__)
 
-    # set this to true, if all song details can also be fetched by fetching album details
-    NO_ADDITIONAL_DATA_FROM_SONG = False
+        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()
 
     def _search_regex(self, pattern, string, default=None, fatal=True, flags=0, group=None):
         """
@@ -172,106 +133,7 @@ class Page:
     def song_search(self, song: Song) -> List[Song]:
         return []
 
-    def fetch_details(
-        self, 
-        music_object: DatabaseObject, 
-        stop_at_level: int = 1,
-        post_process: bool = True
-    ) -> DatabaseObject:
-        """
-        when a music object with lacking data is passed in, it returns
-        the SAME object **(no copy)** with more detailed data.
-        If you for example put in, an album, it fetches the tracklist
-
-        :param music_object:
-        :param stop_at_level: 
-        This says the depth of the level the scraper will recurse to.
-        If this is for example set to 2, then the levels could be:
-        1. Level: the album
-        2. Level: every song of the album + every artist of the album
-        If no additional requests are needed to get the data one level below the supposed stop level
-        this gets ignored
-        :return detailed_music_object: IT MODIFIES THE INPUT OBJ
-        """
-        # creating a new object, of the same type
-        new_music_object: Optional[DatabaseObject] = None
-        fetched_from_url: List[str] = []
-
-        # only certain database objects, have a source list
-        if isinstance(music_object, INDEPENDENT_DB_OBJECTS):
-            source: Source
-            for source in music_object.source_collection.get_sources(self.SOURCE_TYPE):
-                if music_object.already_fetched_from(source.hash_url):
-                    continue
-
-                tmp = self.fetch_object_from_source(
-                    source=source,
-                    enforce_type=type(music_object),
-                    stop_at_level=stop_at_level,
-                    post_process=False,
-                    type_string=type(music_object).__name__,
-                    entity_string=music_object.option_string,
-                )
-
-                if new_music_object is None:
-                    new_music_object = tmp
-                else:
-                    new_music_object.merge(tmp)
-                fetched_from_url.append(source.hash_url)
-
-        if new_music_object is not None:
-            music_object.merge(new_music_object)
-
-        music_object.mark_as_fetched(*fetched_from_url)
-        return music_object
-
-    def fetch_object_from_source(
-        self, 
-        source: Source, 
-        stop_at_level: int = 2,
-        enforce_type: Type[DatabaseObject] = None, 
-        post_process: bool = True,
-        type_string: str = "",
-        entity_string: str = "",
-    ) -> Optional[DatabaseObject]:
-
-        obj_type = self.get_source_type(source)
-
-        if obj_type is None:
-            return None
-
-        if enforce_type != obj_type and enforce_type is not None:
-            self.LOGGER.warning(f"Object type isn't type to enforce: {enforce_type}, {obj_type}")
-            return None
-
-        music_object: DatabaseObject = None
-
-        fetch_map = {
-            Song: self.fetch_song,
-            Album: self.fetch_album,
-            Artist: self.fetch_artist,
-            Label: self.fetch_label
-        }
-
-        if obj_type in fetch_map:
-            music_object = fetch_map[obj_type](source, stop_at_level=stop_at_level)
-        else:
-            self.LOGGER.warning(f"Can't fetch details of type: {obj_type}")
-            return None
-
-        if stop_at_level > 0:
-            trace(f"fetching {type_string} [{entity_string}] [stop_at_level={stop_at_level}]")
-
-            collection: Collection
-            for collection_str in music_object.DOWNWARDS_COLLECTION_STRING_ATTRIBUTES:
-                collection = music_object.__getattribute__(collection_str)
-
-                for sub_element in collection:
-                    sub_element.merge(
-                        self.fetch_details(sub_element, stop_at_level=stop_at_level - 1, post_process=False))
-
-        return music_object
-
+    # to fetch stuff
     def fetch_song(self, source: Source, stop_at_level: int = 1) -> Song:
         return Song()
 
@@ -284,163 +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, 
-        download_all: bool = False,
-        process_metadata_anyway: bool = True
-    ) -> 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, download_all, process_metadata_anyway=process_metadata_anyway)
-
-    def _download(
-        self, 
-        music_object: DatabaseObject, 
-        naming_dict: NamingDict, 
-        download_all: bool = False,
-        skip_details: bool = False, 
-        process_metadata_anyway: bool = True
-    ) -> DownloadResult:
-        trace(f"downloading {type(music_object).__name__} [{music_object.option_string}]")
-        skip_next_details = skip_details
-
-        # Skips all releases, that are defined in shared.ALBUM_TYPE_BLACKLIST, if download_all is False
-        if isinstance(music_object, Album):
-            if self.NO_ADDITIONAL_DATA_FROM_SONG:
-                skip_next_details = True
-
-            if not download_all and music_object.album_type.value in main_settings["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, process_metadata_anyway=process_metadata_anyway)
-
-        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(), download_all,
-                                                     skip_details=skip_next_details,
-                                                     process_metadata_anyway=process_metadata_anyway))
-
-        return download_result
-
-    def _download_song(self, song: Song, naming_dict: NamingDict, process_metadata_anyway: bool = True):
-        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)
-
-        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)
-
-        temp_target: Target = Target(
-            relative_to_music_dir=False,
-            file_path=Path(
-                main_settings["temp_directory"],
-                str(song.id)
-            )
-        )
-
-        r = DownloadResult(1)
-
-        found_on_disc = False
-        target: Target
-        for target in song.target_collection:
-            if target.exists:
-                if process_metadata_anyway:
-                    target.copy_content(temp_target)
-                found_on_disc = True
-
-                r.found_on_disk += 1
-                r.add_target(target)
-
-        if found_on_disc and not process_metadata_anyway:
-            self.LOGGER.info(f"{song.option_string} already exists, thus not downloading again.")
-            return r
-
-        skip_intervals = []
-        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:
-                    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,
-            ))
-
-        return r
-
-    def _post_process_targets(self, song: Song, temp_target: Target, interval_list: List) -> DownloadResult:
-        correct_codec(temp_target, interval_list=interval_list)
-
-        self.post_process_hook(song, temp_target)
-
-        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

@@ -10,7 +10,7 @@ from .abstract import Page
 from ..objects import (
     Artist,
     Source,
-    SourcePages,
+    SourceType,
     Song,
     Album,
     Label,
@@ -22,6 +22,8 @@ from ..objects import (
     Artwork,
 )
 from ..connection import Connection
+from ..utils import dump_to_file
+from ..utils.enums import SourceType, ALL_SOURCE_TYPES
 from ..utils.support_classes.download_result import DownloadResult
 from ..utils.string_processing import clean_song_title
 from ..utils.config import main_settings, logging_settings
@@ -48,9 +50,7 @@ class BandcampTypes(Enum):
 
 
 class Bandcamp(Page):
-    # CHANGE
-    SOURCE_TYPE = SourcePages.BANDCAMP
-    LOGGER = logging_settings["bandcamp_logger"]
+    SOURCE_TYPE = ALL_SOURCE_TYPES.BANDCAMP
 
     def __init__(self, *args, **kwargs):
         self.connection: Connection = Connection(
@@ -62,8 +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
@@ -118,7 +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=[
@@ -238,7 +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"]
@@ -247,7 +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)
                 )
 
@@ -371,7 +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 SourcePages
+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(SourcePages.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(SourcePages.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(SourcePages.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 = SourcePages.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
 
@@ -832,7 +832,7 @@ class EncyclopaediaMetallum(Page):
         )
 
     def get_source_type(self, source: Source):
-        if self.SOURCE_TYPE != source.page_enum:
+        if self.SOURCE_TYPE != source.source_type:
             return None
         
         url = source.url

music_kraken/pages/musify.py

@@ -9,7 +9,7 @@ from bs4 import BeautifulSoup
 
 from ..connection import Connection
 from .abstract import Page
-from ..utils.enums.source import SourcePages
+from ..utils.enums import SourceType, ALL_SOURCE_TYPES
 from ..utils.enums.album import AlbumType, AlbumStatus
 from ..objects import (
     Artist,
@@ -111,9 +111,7 @@ def parse_url(url: str) -> MusifyUrl:
 
 
 class Musify(Page):
-    # CHANGE
-    SOURCE_TYPE = SourcePages.MUSIFY
-    LOGGER = logging_settings["musify_logger"]
+    SOURCE_TYPE = ALL_SOURCE_TYPES.MUSIFY
     
     HOST = "https://musify.club"
     
@@ -418,6 +416,10 @@ class Musify(Page):
             
             href = artist_soup["href"]
             if href is not None:
+                href_parts = href.split("/")
+                if len(href_parts) <= 1 or href_parts[-2] != "artist":
+                    return
+
                 artist_src_list.append(Source(self.SOURCE_TYPE, self.HOST + href))
 
             name_elem: BeautifulSoup = artist_soup.find("span", {"itemprop": "name"})
@@ -500,9 +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(
-                    SourcePages.YOUTUBE,
-                    iframe["src"],
+                    ALL_SOURCE_TYPES.YOUTUBE,
+                    f"https://music.youtube.com/watch?v={path_parts[1]}",
                     referrer_page=self.SOURCE_TYPE
                 ))
         
@@ -681,17 +692,20 @@ class Musify(Page):
             anchor: BeautifulSoup = artist_crumb.find("a")
             if anchor is not None:
                 href = anchor.get("href")
-                artist_source_list: List[Source] = []
 
-                if href is not None:
-                    artist_source_list.append(Source(self.SOURCE_TYPE, self.HOST + href.strip()))
+                href_parts = href.split("/")
+                if not(len(href_parts) <= 1 or href_parts[-2] != "artist"):
+                    artist_source_list: List[Source] = []
 
-                span: BeautifulSoup = anchor.find("span")
-                if span is not None:
-                    artist_list.append(Artist(
-                        name=span.get_text(strip=True),
-                        source_list=artist_source_list
-                    ))
+                    if href is not None:
+                        artist_source_list.append(Source(self.SOURCE_TYPE, self.HOST + href.strip()))
+
+                    span: BeautifulSoup = anchor.find("span")
+                    if span is not None:
+                        artist_list.append(Artist(
+                            name=span.get_text(strip=True),
+                            source_list=artist_source_list
+                        ))
         else:
             self.LOGGER.debug("there are not 4 breadcrumb items, which shouldn't be the case")
 
@@ -938,10 +952,10 @@ class Musify(Page):
         album_status_id = album_card.get("data-type")
         if album_status_id.isdigit():
             album_status_id = int(album_status_id)
-        album_type = ALBUM_TYPE_MAP[album_status_id]
+        album_kwargs["album_type"] = ALBUM_TYPE_MAP[album_status_id]
 
         if album_status_id == 5:
-            album_status = AlbumStatus.BOOTLEG
+            album_kwargs["album_status"] = AlbumStatus.BOOTLEG
 
         def parse_release_anchor(_anchor: BeautifulSoup, text_is_name=False):
             nonlocal album_kwargs
@@ -1037,10 +1051,10 @@ class Musify(Page):
 
         for card_soup in soup.find_all("div", {"class": "card"}):
             album = self._parse_album_card(card_soup, artist_name, **kwargs)
-            if album.album_type in _album_type_blacklist:
+            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/preset.py

@@ -1,65 +0,0 @@
-from typing import List, Optional, Type
-from urllib.parse import urlparse
-import logging
-
-
-from ..objects import Source, DatabaseObject
-from .abstract import Page
-from ..objects import (
-    Artist,
-    Source,
-    SourcePages,
-    Song,
-    Album,
-    Label,
-    Target
-)
-from ..connection import Connection
-from ..utils.support_classes.query import Query
-from ..utils.support_classes.download_result import DownloadResult
-
-class Preset(Page):
-    # CHANGE
-    SOURCE_TYPE = SourcePages.PRESET
-    LOGGER = logging.getLogger("preset")
-
-    def __init__(self, *args, **kwargs):
-        self.connection: Connection = Connection(
-            host="https://www.preset.cum/",
-            logger=self.LOGGER
-        )
-        
-        super().__init__(*args, **kwargs)
-
-    def get_source_type(self, source: Source) -> Optional[Type[DatabaseObject]]:
-        return super().get_source_type(source)
-    
-    def general_search(self, search_query: str) -> List[DatabaseObject]:
-        return []
-    
-    def label_search(self, label: Label) -> List[Label]:
-        return []
-    
-    def artist_search(self, artist: Artist) -> List[Artist]:
-        return []
-    
-    def album_search(self, album: Album) -> List[Album]:
-        return []
-    
-    def song_search(self, song: Song) -> List[Song]:
-        return []
-    
-    def fetch_song(self, source: Source, stop_at_level: int = 1) -> Song:
-        return Song()
-
-    def fetch_album(self, source: Source, stop_at_level: int = 1) -> Album:
-        return Album()
-
-    def fetch_artist(self, source: Source, stop_at_level: int = 1) -> Artist:
-        return Artist()
-
-    def fetch_label(self, source: Source, stop_at_level: int = 1) -> Label:
-        return Label()
-
-    def download_song_to_target(self, source: Source, target: Target, desc: str = None) -> DownloadResult:
-        return DownloadResult()

music_kraken/pages/youtube.py

@@ -9,7 +9,6 @@ from .abstract import Page
 from ..objects import (
     Artist,
     Source,
-    SourcePages,
     Song,
     Album,
     Label,
@@ -19,6 +18,7 @@ from ..objects import (
 )
 from ..connection import Connection
 from ..utils.string_processing import clean_song_title
+from ..utils.enums import SourceType, ALL_SOURCE_TYPES
 from ..utils.support_classes.download_result import DownloadResult
 from ..utils.config import youtube_settings, main_settings, logging_settings
 
@@ -39,10 +39,7 @@ def get_piped_url(path: str = "", params: str = "", query: str = "", fragment: s
 
 class YouTube(SuperYouTube):
     # CHANGE
-    SOURCE_TYPE = SourcePages.YOUTUBE
-    LOGGER = logging_settings["youtube_logger"]
-
-    NO_ADDITIONAL_DATA_FROM_SONG = True
+    SOURCE_TYPE = ALL_SOURCE_TYPES.YOUTUBE
 
     def __init__(self, *args, **kwargs):
         self.connection: Connection = Connection(
@@ -146,7 +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:
@@ -287,7 +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

@@ -7,7 +7,6 @@ from ..abstract import Page
 from ...objects import (
     Artist,
     Source,
-    SourcePages,
     Song,
     Album,
     Label,
@@ -59,6 +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/_music_object_render.py

@@ -3,12 +3,13 @@ from enum import Enum
 
 from ...utils.config import youtube_settings, logging_settings
 from ...utils.string_processing import clean_song_title
+from ...utils.enums import SourceType, ALL_SOURCE_TYPES
+
 from ...objects import Source, DatabaseObject
 from ..abstract import Page
 from ...objects import (
     Artist,
     Source,
-    SourcePages,
     Song,
     Album,
     Label,
@@ -18,7 +19,7 @@ from ...objects import (
 LOGGER = logging_settings["youtube_music_logger"]
 
 
-SOURCE_PAGE = SourcePages.YOUTUBE_MUSIC
+SOURCE_PAGE = ALL_SOURCE_TYPES.YOUTUBE
 
 
 class PageType(Enum):

music_kraken/pages/youtube_music/super_youtube.py

@@ -10,7 +10,6 @@ from ..abstract import Page
 from ...objects import (
     Artist,
     Source,
-    SourcePages,
     Song,
     Album,
     Label,
@@ -21,6 +20,7 @@ from ...objects import (
 from ...connection import Connection
 from ...utils.support_classes.download_result import DownloadResult
 from ...utils.config import youtube_settings, logging_settings, main_settings
+from ...utils.enums import SourceType, ALL_SOURCE_TYPES
 
 
 def get_invidious_url(path: str = "", params: str = "", query: str = "", fragment: str = "") -> str:
@@ -50,7 +50,7 @@ class YouTubeUrl:
     """
     
     def __init__(self, url: str) -> None:
-        self.SOURCE_TYPE = SourcePages.YOUTUBE
+        self.SOURCE_TYPE = ALL_SOURCE_TYPES.YOUTUBE
 
         """
         Raises Index exception for wrong url, and value error for not found enum type
@@ -58,9 +58,6 @@ class YouTubeUrl:
         self.id = ""
         parsed = urlparse(url=url)
 
-        if parsed.netloc == "music.youtube.com":
-            self.SOURCE_TYPE = SourcePages.YOUTUBE_MUSIC
-        
         self.url_type: YouTubeUrlType
         
         type_frag_list = parsed.path.split("/")
@@ -124,8 +121,7 @@ class YouTubeUrl:
 
 class SuperYouTube(Page):
     # CHANGE
-    SOURCE_TYPE = SourcePages.YOUTUBE
-    LOGGER = logging_settings["youtube_logger"]
+    SOURCE_TYPE = ALL_SOURCE_TYPES.YOUTUBE
 
     NO_ADDITIONAL_DATA_FROM_SONG = False
 
@@ -145,6 +141,8 @@ class SuperYouTube(Page):
         _sponsorblock_connection: Connection = Connection()
         self.sponsorblock = python_sponsorblock.SponsorBlock(silent=True, session=_sponsorblock_connection.session)
 
+        super().__init__(*args, **kwargs)
+
     def get_source_type(self, source: Source) -> Optional[Type[DatabaseObject]]:
         _url_type = {
             YouTubeUrlType.CHANNEL: Artist,

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,
-    SourcePages,
+    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 = SourcePages.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(
@@ -193,8 +194,7 @@ class YoutubeMusic(SuperYouTube):
 
         self.start_millis = get_current_millis()
 
-        if self.credentials.api_key == "" or DEBUG_YOUTUBE_INITIALIZING:
-            self._fetch_from_main_page()
+        self._fetch_from_main_page()
 
         SuperYouTube.__init__(self, *args, **kwargs)
 
@@ -215,6 +215,8 @@ class YoutubeMusic(SuperYouTube):
         self.download_values_by_url: dict = {}
         self.not_download: Dict[str, DownloadError] = {}
 
+        super().__init__(*args, **kwargs)
+
     def _fetch_from_main_page(self):
         """
         ===API=KEY===
@@ -347,10 +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(" ", "+"))
@@ -587,6 +589,8 @@ 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)
 
@@ -618,7 +622,7 @@ class YoutubeMusic(SuperYouTube):
             Artist(
                 name=name,
                 source_list=[Source(
-                    SourcePages.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]
@@ -637,9 +641,9 @@ 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(
-                SourcePages.YOUTUBE_MUSIC,
+                self.SOURCE_TYPE,
                 f"https://music.youtube.com/watch?v={ydl_res.get('id')}"
             ), source],
         )
@@ -736,8 +740,9 @@ class YoutubeMusic(SuperYouTube):
                 raw_headers=True,
                 disable_cache=True,
                 headers=media.get("headers", {}),
-                # chunk_size=media.get("chunk_size", main_settings["chunk_size"]),
+                chunk_size=main_settings["chunk_size"],
                 method="GET",
+                timeout=5,
             )
         else:
             result = DownloadResult(error_message=str(media.get("error") or self.not_download[source.hash_url]))

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

@@ -1 +1,54 @@
-from .source import SourcePages
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Optional, TYPE_CHECKING, Type
+if TYPE_CHECKING:
+    from ...pages.abstract import Page
+
+@dataclass
+class SourceType:
+    name: str
+    homepage: Optional[str] = None
+    download_priority: int = 0
+
+    page_type: Type[Page] = None
+    page: Page = None
+
+    def register_page(self, page: Page):
+        self.page = page
+
+    def __hash__(self):
+        return hash(self.name)
+
+    @property
+    def has_page(self) -> bool:
+        return self.page is not None
+
+    # for backwards compatibility
+    @property
+    def value(self) -> str:
+        return self.name
+
+
+class ALL_SOURCE_TYPES:
+    YOUTUBE = SourceType(name="youtube", homepage="https://music.youtube.com/")
+    BANDCAMP = SourceType(name="bandcamp", homepage="https://bandcamp.com/", download_priority=10)
+    MUSIFY = SourceType(name="musify", homepage="https://musify.club/", download_priority=7)
+    
+    GENIUS = SourceType(name="genius", homepage="https://genius.com/")
+    MUSICBRAINZ = SourceType(name="musicbrainz", homepage="https://musicbrainz.org/")
+    ENCYCLOPAEDIA_METALLUM = SourceType(name="encyclopaedia metallum")
+    DEEZER = SourceType(name="deezer", homepage="https://www.deezer.com/")
+    SPOTIFY = SourceType(name="spotify", homepage="https://open.spotify.com/")
+
+    # This has nothing to do with audio, but bands can be here
+    WIKIPEDIA = SourceType(name="wikipedia", homepage="https://en.wikipedia.org/wiki/Main_Page")
+    INSTAGRAM = SourceType(name="instagram", homepage="https://www.instagram.com/")
+    FACEBOOK = SourceType(name="facebook", homepage="https://www.facebook.com/")
+    TWITTER = SourceType(name="twitter", homepage="https://twitter.com/")
+    # Yes somehow this ancient site is linked EVERYWHERE
+    MYSPACE = SourceType(name="myspace", homepage="https://myspace.com/")     
+
+    MANUAL = SourceType(name="manual")
+    
+    PRESET = SourceType(name="preset")

music_kraken/utils/enums/source.py

@@ -1,40 +0,0 @@
-from enum import Enum
-
-
-class SourceTypes(Enum):
-    SONG = "song"
-    ALBUM = "album"
-    ARTIST = "artist"
-    LYRICS = "lyrics"
-
-
-class SourcePages(Enum):
-    YOUTUBE = "youtube", "https://www.youtube.com/"
-    MUSIFY = "musify", "https://musify.club/"
-    YOUTUBE_MUSIC = "youtube music", "https://music.youtube.com/"
-    GENIUS = "genius", "https://genius.com/"
-    MUSICBRAINZ = "musicbrainz", "https://musicbrainz.org/"
-    ENCYCLOPAEDIA_METALLUM = "encyclopaedia metallum"
-    BANDCAMP = "bandcamp", "https://bandcamp.com/"
-    DEEZER = "deezer", "https://www.deezer.com/"
-    SPOTIFY = "spotify", "https://open.spotify.com/"
-
-    # This has nothing to do with audio, but bands can be here
-    WIKIPEDIA = "wikipedia", "https://en.wikipedia.org/wiki/Main_Page"
-    INSTAGRAM = "instagram", "https://www.instagram.com/"
-    FACEBOOK = "facebook", "https://www.facebook.com/"
-    TWITTER = "twitter", "https://twitter.com/"
-    MYSPACE = "myspace", "https://myspace.com/"     # Yes somehow this ancient site is linked EVERYWHERE
-
-    MANUAL = "manual", ""
-    
-    PRESET = "preset", ""
-
-    def __new__(cls, value, homepage = None):
-        member = object.__new__(cls)
-    
-        member._value_ = value
-        member.homepage = homepage
-
-        return member
-        

music_kraken/utils/exception/__init__.py

@@ -4,8 +4,20 @@ class MKBaseException(Exception):
         super().__init__(message, **kwargs)
 
 
+# Downloading
+class MKDownloadException(MKBaseException):
+    pass
+
+
+class MKMissingNameException(MKDownloadException):
+    pass
+
+
+# Frontend
 class MKFrontendException(MKBaseException):
     pass
 
 class MKInvalidInputException(MKFrontendException):
     pass
+
+

music_kraken/utils/shared.py

@@ -15,7 +15,7 @@ __stage__ = os.getenv("STAGE", "prod")
 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/string_processing.py

@@ -116,10 +116,13 @@ def clean_song_title(raw_song_title: str, artist_name: Optional[str] = None) ->
 
         # Remove artist from the start of the title
         if raw_song_title.lower().startswith(artist_name.lower()):
-            raw_song_title = raw_song_title[len(artist_name):].strip()
 
-            if raw_song_title.startswith("-"):
-                raw_song_title = raw_song_title[1:].strip()
+            possible_new_name = raw_song_title[len(artist_name):].strip()
+
+            for char in ("-", "–", ":", "|"):
+                if possible_new_name.startswith(char):
+                    raw_song_title = possible_new_name[1:].strip()
+                    break
 
     return raw_song_title.strip()
 

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]

pyproject.toml

@@ -69,7 +69,7 @@ dependencies = [
     "toml~=0.10.2",
     "typing_extensions~=4.7.1",
 
-    "python-sponsorblock~=0.0.0",
+    "python-sponsorblock~=0.1",
     "youtube_dl",
 ]
 dynamic = [

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()