feat: launch programm

.vscode/launch.json

@@ -17,6 +17,12 @@
             "request": "launch",
             "program": "development/actual_donwload.py",
             "console": "integratedTerminal"
+        },
+        {
+            "name": "Python Debugger: Music Kraken",
+            "type": "debugpy",
+            "request": "launch", // run the module
+            "program": "${workspaceFolder}/.vscode/run_script.py",
         }
     ]
 }

.vscode/run_script.py

@@ -0,0 +1,3 @@
+from music_kraken.__main__ import cli
+
+cli()

music_kraken/cli/main_downloader.py

@@ -1,89 +1,25 @@
 import random
-from typing import Set, Type, Dict, List
-from pathlib import Path
 import re
+from pathlib import Path
+from typing import Dict, Generator, List, Set, Type, Union
 
-from .utils import cli_function
+from .. import console
-from .options.first_config import initial_config
+from ..download import Downloader, Page, components
-
+from ..download.results import GoToResults
-from ..utils import output, BColors
+from ..download.results import Option as ResultOption
-from ..utils.config import write_config, main_settings
+from ..download.results import PageResults, Results
-from ..utils.shared import URL_PATTERN
+from ..objects import Album, Artist, DatabaseObject, Song
-from ..utils.string_processing import fit_to_file_system
+from ..utils import BColors, output
-from ..utils.support_classes.query import Query
+from ..utils.config import main_settings, write_config
-from ..utils.support_classes.download_result import DownloadResult
+from ..utils.enums.colors import BColors
 from ..utils.exception import MKInvalidInputException
 from ..utils.exception.download import UrlNotFoundException
-from ..utils.enums.colors import BColors
+from ..utils.shared import HELP_MESSAGE, URL_PATTERN
-from .. import console
+from ..utils.string_processing import fit_to_file_system
-
+from ..utils.support_classes.download_result import DownloadResult
-from ..download.results import Results, Option, PageResults, GoToResults
+from ..utils.support_classes.query import Query
-from ..download.page_attributes import Pages
+from .options.first_config import initial_config
-from ..pages import Page
+from .utils import ask_for_bool, cli_function
-from ..objects import Song, Album, Artist, DatabaseObject
-
-"""
-This is the implementation of the Shell
-
-# Behaviour
-
-## Searching
-
-```mkshell
-> s: {querry or url}
-
-# examples
-> s: https://musify.club/release/some-random-release-183028492
-> s: r: #a an Artist #r some random Release
-```
-
-Searches for an url, or an query
-
-### Query Syntax
-
-```
-#a {artist} #r {release} #t {track}
-```
-
-You can escape stuff like `#` doing this: `\#`
-
-## Downloading
-
-To download something, you either need a direct link, or you need to have already searched for options
-
-```mkshell
-> d: {option ids or direct url}
-
-# examples
-> d: 0, 3, 4
-> d: 1
-> d: https://musify.club/release/some-random-release-183028492
-```
-
-## Misc
-
-### Exit
-
-```mkshell
-> q
-> quit
-> exit
-> abort
-```
-
-### Current Options
-
-```mkshell
-> .
-```
-
-### Previous Options
-
-```
-> ..
-```
-
-"""
 
 EXIT_COMMANDS = {"q", "quit", "exit", "abort"}
 ALPHABET = "abcdefghijklmnopqrstuvwxyz"
@@ -91,59 +27,40 @@ PAGE_NAME_FILL = "-"
 MAX_PAGE_LEN = 21
 
 
-def get_existing_genre() -> List[str]:
+class GenreIO(components.HumanIO):
-    """
+    @staticmethod
-    gets the name of all subdirectories of shared.MUSIC_DIR,
+    def ask_to_create(option: components.Option) -> bool:
-    but filters out all directories, where the name matches with any patern
+        output()
-    from shared.NOT_A_GENRE_REGEX.
+        return ask_for_bool(f"create the genre {BColors.OKBLUE.value}{option.value}{BColors.ENDC.value}")
-    """
-    existing_genres: List[str] = []
 
-    # get all subdirectories of MUSIC_DIR, not the files in the dir.
+    @staticmethod
-    existing_subdirectories: List[Path] = [f for f in main_settings["music_directory"].iterdir() if f.is_dir()]
+    def not_found(key: str) -> None:
-
+        output(f"\ngenre {BColors.BOLD.value}{key}{BColors.ENDC.value} not found\n", color=BColors.FAIL)
-    for subdirectory in existing_subdirectories:
-        name: str = subdirectory.name
-
-        if not any(re.match(regex_pattern, name) for regex_pattern in main_settings["not_a_genre_regex"]):
-            existing_genres.append(name)
-
-    existing_genres.sort()
-
-    return existing_genres
 
 
 def get_genre():
-    existing_genres = get_existing_genre()
+    select_genre = components.GenreSelect()
-    for i, genre_option in enumerate(existing_genres):
+    select_genre.human_io = GenreIO
-        print(f"{i + 1:0>2}: {genre_option}")
 
-    while True:
+    genre: Optional[components.Option] = None
-        genre = input("Id or new genre: ")
 
-        if genre.isdigit():
+    while genre is None:
-            genre_id = int(genre) - 1
+        print(select_genre.pprint())
-            if genre_id >= len(existing_genres):
+        print()
-                print(f"No genre under the id {genre_id + 1}.")
-                continue
 
-            return existing_genres[genre_id]
+        genre = select_genre.choose(input("> "))
 
-        new_genre = fit_to_file_system(genre)
+    return genre.value
-
-        agree_inputs = {"y", "yes", "ok"}
-        verification = input(f"create new genre \"{new_genre}\"? (Y/N): ").lower()
-        if verification in agree_inputs:
-            return new_genre
 
 
 def help_message():
+    print(HELP_MESSAGE)
     print()
     print(random.choice(main_settings["happy_messages"]))
     print()
 
 
-class Downloader:
+class CliDownloader:
     def __init__(
             self,
             exclude_pages: Set[Type[Page]] = None,
@@ -153,7 +70,7 @@ class Downloader:
             genre: str = None,
             process_metadata_anyway: bool = False,
     ) -> None:
-        self.pages: Pages = Pages(exclude_pages=exclude_pages, exclude_shady=exclude_shady)
+        self.downloader: Downloader = Downloader(exclude_pages=exclude_pages, exclude_shady=exclude_shady)
 
         self.page_dict: Dict[str, Type[Page]] = dict()
 
@@ -171,13 +88,16 @@ class Downloader:
         output()
 
     def print_current_options(self):
-        self.page_dict = dict()
 
         print()
+        print(self.current_results.pprint())
+
+        """
+        self.page_dict = dict()
         
         page_count = 0
         for option in self.current_results.formatted_generator():
-            if isinstance(option, Option):
+            if isinstance(option, ResultOption):
                 r = f"{BColors.GREY.value}{option.index:0{self.option_digits}}{BColors.ENDC.value} {option.music_object.option_string}"
                 print(r)
             else:
@@ -189,10 +109,13 @@ class Downloader:
                 self.page_dict[option.__name__] = option
 
                 page_count += 1
+        """
 
         print()
 
-    def set_current_options(self, current_options: Results):
+    def set_current_options(self, current_options: Union[Generator[DatabaseObject, None, None], components.Select]):
+        current_options = current_options if isinstance(current_options, components.Select) else components.DataObjectSelect(current_options)
+
         if main_settings["result_history"]:
             self._result_history.append(current_options)
 
@@ -242,7 +165,7 @@ class Downloader:
     def search(self, query: str):
         if re.match(URL_PATTERN, query) is not None:
             try:
-                page, data_object = self.pages.fetch_url(query)
+                data_object = self.downloader.fetch_url(query)
             except UrlNotFoundException as e:
                 print(f"{e.url} could not be attributed/parsed to any yet implemented site.\n"
                       f"PR appreciated if the site isn't implemented.\n"
@@ -296,15 +219,17 @@ class Downloader:
 
         parsed_query: Query = self._process_parsed(key_text, query)
 
-        self.set_current_options(self.pages.search(parsed_query))
+        self.set_current_options(self.downloader.search(parsed_query))
         self.print_current_options()
 
-    def goto(self, data_object: DatabaseObject):
+    def goto(self, data_object: Union[DatabaseObject, components.Select]):
         page: Type[Page]
 
-        self.pages.fetch_details(data_object, stop_at_level=1)
+        if isinstance(data_object, components.Select):
-
+            self.set_current_options(data_object)
-        self.set_current_options(GoToResults(data_object.options, max_items_per_page=self.max_displayed_options))
+        else:
+            self.downloader.fetch_details(data_object, stop_at_level=1)
+            self.set_current_options(data_object.options)
 
         self.print_current_options()
 
@@ -316,7 +241,7 @@ class Downloader:
         _result_map: Dict[DatabaseObject, DownloadResult] = dict()
 
         for database_object in data_objects:
-            r = self.pages.download(
+            r = self.downloader.download(
                 data_object=database_object, 
                 genre=self.genre, 
                 **kwargs
@@ -371,24 +296,15 @@ class Downloader:
 
                 indices = []
                 for possible_index in q.split(","):
-                    possible_index = possible_index.strip()
                     if possible_index == "":
                         continue
 
-                    i = 0
+                    if possible_index not in self.current_results:
-                    try:
+                        raise MKInvalidInputException(message=f"The index \"{possible_index}\" is not in the current options.")
-                        i = int(possible_index)
-                    except ValueError:
-                        raise MKInvalidInputException(message=f"The index \"{possible_index}\" is not a number.")
                     
-                    if i < 0 or i >= len(self.current_results):
+                    yield self.current_results[possible_index]
-                        raise MKInvalidInputException(message=f"The index \"{i}\" is not within the bounds of 0-{len(self.current_results) - 1}.")
 
-                    indices.append(i)
+            selected_objects = list(get_selected_objects(query))
-
-                return [self.current_results[i] for i in indices]
-
-            selected_objects = get_selected_objects(query)
 
             if do_merge:
                 old_selected_objects = selected_objects
@@ -403,19 +319,19 @@ class Downloader:
 
             if do_fetch:
                 for data_object in selected_objects:
-                    self.pages.fetch_details(data_object)
+                    self.downloader.fetch_details(data_object)
 
                 self.print_current_options()
                 return False
 
             if do_download:
-                self.download(selected_objects)
+                self.download(list(o.value for o in selected_objects))
                 return False
 
             if len(selected_objects) != 1:
                 raise MKInvalidInputException(message="You can only go to one object at a time without merging.")
 
-            self.goto(selected_objects[0])
+            self.goto(selected_objects[0].value)
             return False
         except MKInvalidInputException as e:
             output("\n" + e.message + "\n", color=BColors.FAIL)
@@ -446,7 +362,7 @@ def download(
         else:
             print(f"{BColors.FAIL.value}Something went wrong configuring.{BColors.ENDC.value}")
 
-    shell = Downloader(genre=genre, process_metadata_anyway=process_metadata_anyway)
+    shell = CliDownloader(genre=genre, process_metadata_anyway=process_metadata_anyway)
 
     if command_list is not None:
         for command in command_list:

music_kraken/cli/utils.py

@@ -1,3 +1,4 @@
+from ..utils import BColors
 from ..utils.shared import get_random_message
 
 
@@ -39,4 +40,8 @@ def print_cute_message():
         print(message)
 
 
+AGREE_INPUTS = {"y", "yes", "ok"}
+def ask_for_bool(msg: str) -> bool:
+    i = input(f"{msg} ({BColors.OKGREEN.value}Y{BColors.ENDC.value}/{BColors.FAIL.value}N{BColors.ENDC.value})? ").lower()
+    return i in AGREE_INPUTS
     

music_kraken/download/__init__.py

@@ -1,8 +1,36 @@
-from dataclasses import dataclass, field
+from __future__ import annotations
-from typing import Set
 
-from ..utils.config import main_settings
+import logging
+import random
+import re
+from collections import defaultdict
+from copy import copy
+from dataclasses import dataclass, field
+from pathlib import Path
+from string import Formatter
+from typing import (TYPE_CHECKING, Any, Callable, Dict, Generator, List,
+                    Optional, Set, Tuple, Type, TypedDict, Union)
+
+import requests
+from bs4 import BeautifulSoup
+
+from ..audio import correct_codec, write_metadata_to_target
+from ..connection import Connection
+from ..objects import Album, Artist, Collection
+from ..objects import DatabaseObject as DataObject
+from ..objects import Label, Options, Song, Source, Target
+from ..utils import BColors, output, trace
+from ..utils.config import main_settings, youtube_settings
+from ..utils.enums import ALL_SOURCE_TYPES, SourceType
 from ..utils.enums.album import AlbumType
+from ..utils.exception import MKComposeException, MKMissingNameException
+from ..utils.exception.download import UrlNotFoundException
+from ..utils.path_manager import LOCATIONS
+from ..utils.shared import DEBUG_PAGES
+from ..utils.string_processing import fit_to_file_system
+from ..utils.support_classes.download_result import DownloadResult
+from ..utils.support_classes.query import Query
+from .results import SearchResults
 
 
 @dataclass
@@ -19,3 +47,402 @@ class DownloadOptions:
     download_again_if_found: bool = False
     process_audio_if_found: bool = False
     process_metadata_if_found: bool = True
+
+
+fetch_map = {
+    Song: "fetch_song",
+    Album: "fetch_album",
+    Artist: "fetch_artist",
+    Label: "fetch_label",
+}
+
+
+class Downloader:
+    def __init__(
+        self, 
+        auto_register_pages: bool = True, 
+        download_options: DownloadOptions = None, 
+        fetch_options: FetchOptions = None, 
+        **kwargs
+    ):
+        self.LOGGER = logging.getLogger("download")
+        
+        self.download_options: DownloadOptions = download_options or DownloadOptions()
+        self.fetch_options: FetchOptions = fetch_options or FetchOptions()
+
+        self._registered_pages: Dict[Type[Page], Set[Page]] = defaultdict(set)
+        if auto_register_pages:
+            self.scan_for_pages(**kwargs)
+
+    def register_page(self, page_type: Type[Page], **kwargs):
+        if page_type in self._registered_pages:
+            return
+
+        self._registered_pages[page_type].add(page_type(
+            download_options=self.download_options, 
+            fetch_options=self.fetch_options, 
+            **kwargs
+        ))
+
+    def deregister_page(self, page_type: Type[Page]):
+        if page_type not in _registered_pages:
+            return
+
+        for p in self._registered_pages[page_type]:
+            p.__del__()
+        del self._registered_pages[page_type]
+
+    def scan_for_pages(self, **kwargs):
+        # assuming the wanted pages are the leaf classes of the interface
+        from .. import pages
+        
+        leaf_classes = []
+
+        class_list = [Page]
+        while len(class_list):
+            _class = class_list.pop()
+            class_subclasses = _class.__subclasses__()
+
+            if len(class_subclasses) == 0:
+                if _class.REGISTER:
+                    leaf_classes.append(_class)
+            else:
+                class_list.extend(class_subclasses)
+
+        if Page in leaf_classes:
+            self.LOGGER.warn("couldn't find any data source")
+            return
+        for leaf_class in leaf_classes:
+            self.register_page(leaf_class, **kwargs)
+
+    def get_pages(self, *page_types: List[Type[Page]]) -> Generator[Page, None, None]:
+        if len(page_types) == 0:
+            page_types = self._registered_pages.keys()
+
+        for page_type in page_types:
+            yield from self._registered_pages[page_type]
+
+    def search(self, query: Query) -> Generator[DataObject, None, None]:
+        for page in self.get_pages():
+            yield from page.search(query=query)
+    
+    def fetch_details(self, data_object: DataObject, stop_at_level: int = 1, **kwargs) -> DataObject:
+        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)
+
+        return data_object
+
+    def fetch_from_source(self, source: Source, **kwargs) -> Optional[DataObject]:
+        if not source.has_page:
+            return None
+        
+        source_type = source.page.get_source_type(source=source)
+        if source_type is None:
+            self.LOGGER.debug(f"Could not determine source type for {source}.")
+            return None
+
+        func = getattr(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
+
+    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 _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
+        
+        return False
+
+    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, **kwargs) -> DataObject:
+        source = Source.match_url(url, ALL_SOURCE_TYPES.MANUAL)
+        
+        if source is None or source.page is None:
+            raise UrlNotFoundException(url=url)
+        
+        return source.page.fetch_object_from_source(source=source, **kwargs)
+
+
+class Page:
+    REGISTER = True
+    SOURCE_TYPE: SourceType
+    LOGGER: logging.Logger
+
+    def __new__(cls, *args, **kwargs):
+        cls.LOGGER = logging.getLogger(cls.__name__)
+        return super().__new__(cls)
+
+    @classmethod
+    def is_leaf_page(cls) -> bool:
+        return len(cls.__subclasses__()) == 0
+
+    def __init__(self, download_options: DownloadOptions = None, fetch_options: FetchOptions = None, **kwargs):
+        self.SOURCE_TYPE.register_page(self)
+        
+        self.download_options: DownloadOptions = download_options or DownloadOptions()
+        self.fetch_options: FetchOptions = fetch_options or FetchOptions()
+
+    def __del__(self):
+        self.SOURCE_TYPE.deregister_page()
+
+    def _search_regex(self, pattern, string, default=None, fatal=True, flags=0, group=None):
+        """
+        Perform a regex search on the given string, using a single or a list of
+        patterns returning the first matching group.
+        In case of failure return a default value or raise a WARNING or a
+        RegexNotFoundError, depending on fatal, specifying the field name.
+        """
+
+        if isinstance(pattern, str):
+            mobj = re.search(pattern, string, flags)
+        else:
+            for p in pattern:
+                mobj = re.search(p, string, flags)
+                if mobj:
+                    break
+
+        if mobj:
+            if group is None:
+                # return the first matching group
+                return next(g for g in mobj.groups() if g is not None)
+            elif isinstance(group, (list, tuple)):
+                return tuple(mobj.group(g) for g in group)
+            else:
+                return mobj.group(group)
+
+        return default
+
+    def get_source_type(self, source: Source) -> Optional[Type[DataObject]]:
+        return None
+
+    def get_soup_from_response(self, r: requests.Response) -> BeautifulSoup:
+        return BeautifulSoup(r.content, "html.parser")
+
+    # to search stuff
+    def search(self, query: Query) -> List[DataObject]:
+        music_object = query.music_object
+
+        search_functions = {
+            Song: self.song_search,
+            Album: self.album_search,
+            Artist: self.artist_search,
+            Label: self.label_search
+        }
+
+        if type(music_object) in search_functions:
+            r = search_functions[type(music_object)](music_object)
+            if r is not None and len(r) > 0:
+                return r
+
+        r = []
+        for default_query in query.default_search:
+            for single_option in self.general_search(default_query):
+                r.append(single_option)
+
+        return r
+
+    def general_search(self, search_query: str) -> List[DataObject]:
+        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 []
+
+    # to fetch stuff
+    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()
+
+    # to download stuff
+    def get_skip_intervals(self, song: Song, source: Source) -> List[Tuple[float, float]]:
+        return []
+
+    def post_process_hook(self, song: Song, temp_target: Target, **kwargs):
+        pass
+
+    def download_song_to_target(self, source: Source, target: Target, desc: str = None) -> DownloadResult:
+        return DownloadResult()

music_kraken/download/components.py

@@ -0,0 +1,303 @@
+from __future__ import annotations
+
+import re
+from collections import defaultdict
+from pathlib import Path
+from typing import Any, Callable, Dict, Generator, List, Optional
+
+from ..objects import OuterProxy as DataObject
+from ..utils import BColors
+from ..utils.config import main_settings
+from ..utils.enums import SourceType
+from ..utils.exception import MKComposeException
+from ..utils.shared import ALPHABET
+from ..utils.string_processing import unify
+
+
+class HumanIO:
+    @staticmethod
+    def ask_to_create(option: Option) -> bool:
+        return True
+
+    @staticmethod
+    def not_found(key: Any) -> None:
+        return None
+
+
+class Option:
+    """
+    This could represent a data object, a string or a page.
+    """
+
+    def __init__(
+        self, 
+        value: Any, 
+        text: Optional[str] = None, 
+        keys: List[Any] = None, 
+        hidden: bool = False, 
+        parse_key: Callable[[Any], Any] = lambda x: x,
+        index: int = None,
+    ):
+        self._parse_key: Callable[[Any], Any] = parse_key
+        
+        self._index = index
+        self.value = value
+        self._text = text or str(value)
+        self.hidden = hidden
+
+        self._raw_keys = set(keys or [])
+        self._raw_keys.add(self.text)
+        try:
+            self._raw_keys.add(self.value)
+        except TypeError:
+            pass
+        self._raw_keys.add(str(self.value))
+        self._raw_keys.add(self._index)
+        self.keys = set(self.parse_key(key) for key in self._raw_keys)
+
+    @property
+    def text(self) -> str:
+        return self._text.replace("{index}", str(self.index))
+    
+    @text.setter
+    def text(self, value: str):
+        self._text = value
+
+    @property
+    def index(self) -> int:
+        return self._index
+
+    @index.setter
+    def index(self, value: int):
+        p = self._parse_key(self._index)
+        if p in self.keys:
+            self.keys.remove(p)
+        self._index = value
+        self.keys.add(p)
+    
+    def register_key(self, key: Any):
+        self._raw_keys.add(key)
+        self.keys.add(self._parse_key(key))
+
+    @property
+    def parse_key(self) -> Callable[[Any], Any]:
+        return self._parse_key
+
+    @parse_key.setter
+    def parse_key(self, value: Callable[[Any], Any]):
+        self._parse_key = value
+        self.keys = set(self._parse_key(key) for key in self._raw_keys)
+
+    def __str__(self):
+        return self.text
+
+
+class Select:
+    def __init__(
+        self, 
+        options: Generator[Option, None, None] = None, 
+        option_factory: Callable[[Any], Option] = None,
+        raw_options: List[Any] = None,
+        parse_option_key: Callable[[Any], Any] = lambda x: x,
+        human_io: HumanIO = HumanIO,
+        sort: bool = False,
+        **kwargs
+    ):
+        self._parse_option_key: Callable[[Any], Any] = parse_option_key
+        self.human_io: HumanIO = human_io
+
+        self._key_to_option: Dict[Any, Option] = dict()
+        self._options: List[Option] = []
+
+        options = options or []
+        self.option_factory: Optional[Callable[[Any], Option]] = option_factory
+        if self.can_create_options:
+            _raw_options = raw_options or []
+            if sort:
+                _raw_options = sorted(_raw_options)
+
+            for raw_option in _raw_options:
+                self.append(self.option_factory(raw_option))
+        elif raw_options is not None:
+            raise MKComposeException("Cannot create options without a factory.")
+
+        self.extend(options)
+
+    @property
+    def can_create_options(self) -> bool:
+        return self.option_factory is not None
+
+    def append(self, option: Option):
+        option.parse_key = self._parse_option_key
+        self._options.append(option)
+        for key in option.keys:
+            self._key_to_option[key] = option
+
+    def _remap(self):
+        self._key_to_option = dict()
+        for option in self._options:
+            for key in option.keys:
+                self._key_to_option[key] = option
+
+    def extend(self, options: List[Option]):
+        for option in options:
+            self.append(option)
+
+    def __iter__(self) -> Generator[Option, None, None]:
+        for option in self._options:
+            if option.hidden:
+                continue
+            
+            yield option
+
+    def __contains__(self, key: Any) -> bool:
+        return self._parse_option_key(key) in self._key_to_option
+
+    def __getitem__(self, key: Any) -> Option:
+        r = self._key_to_option[self._parse_option_key(key)]
+        if callable(r):
+            r = r()
+        if callable(r.value):
+            r.value = r.value()
+        return r
+
+    def create_option(self, key: Any, **kwargs) -> Option:
+        if not self.can_create_options:
+            raise MKComposeException("Cannot create options without a factory.")
+
+        option = self.option_factory(key, **kwargs)
+        self.append(option)
+        return option
+
+    def choose(self, key: Any) -> Optional[Option]:
+        if key not in self:
+            if self.can_create_options:
+                c = self.create_option(key)
+                if self.human_io.ask_to_create(c):
+                    return c
+            
+            self.human_io.not_found(key)
+            return None
+
+        return self[key]
+
+    def pprint(self) -> str:
+        return "\n".join(str(option) for option in self)
+
+
+
+class StringSelect(Select):
+    def __init__(self, **kwargs):
+        self._current_index = 0
+        kwargs["option_factory"] = self.next_option
+        kwargs["parse_option_key"] = lambda x: unify(str(x))
+
+        super().__init__(**kwargs)
+
+    def next_option(self, value: Any) -> Optional[Option]:
+        o = Option(value=value, keys=[self._current_index], text=f"{BColors.BOLD.value}{self._current_index: >2}{BColors.ENDC.value}: {value}")
+        self._current_index += 1
+        return o
+
+
+class GenreSelect(StringSelect):
+    @staticmethod
+    def is_valid_genre(genre: Path) -> bool:
+        """
+        gets the name of all subdirectories of shared.MUSIC_DIR,
+        but filters out all directories, where the name matches with any Patern
+        from shared.NOT_A_GENRE_REGEX.
+        """
+        if not genre.is_dir():
+            return False
+
+        if any(re.match(regex_pattern, genre.name) for regex_pattern in main_settings["not_a_genre_regex"]):
+            return False
+
+        return True
+
+    def __init__(self):
+        super().__init__(sort=True, raw_options=(genre.name for genre in filter(self.is_valid_genre, main_settings["music_directory"].iterdir())))
+
+
+
+class SourceTypeToOption(dict):
+    def __init__(self, callback):
+        super().__init__()
+        
+        self.callback = callback
+
+    def __missing__(self, key):
+        self[key] = self.callback(key)
+        return self[key]
+
+
+class DataObjectSelect(Select):
+    def __init__(self, data_objects: Generator[DataObject]):
+        self._source_type_to_data_objects: Dict[SourceType, List[Option]] = defaultdict(list)
+        self._source_type_to_option: Dict[SourceType, Option] = SourceTypeToOption(self.option_from_source_type)
+
+        self._data_object_index: int = 0
+        self._source_type_index: int = 0
+
+        super().__init__(
+            parse_option_key=lambda x: unify(str(x)),
+        )
+
+        self.extend(data_objects)
+
+    def option_from_data_object(self, data_object: DataObject) -> Option:
+        index = self._data_object_index
+        self._data_object_index += 1
+
+        return Option(
+            value=data_object,
+            keys=[index, data_object.option_string, data_object.title_string],
+            text=f"{BColors.BOLD.value}{{index}}{BColors.ENDC.value}: {data_object.option_string}",
+            index=index,
+        )
+
+    def option_from_source_type(self, source_type: SourceType) -> Option:
+        index = ALPHABET[self._source_type_index % len(ALPHABET)]
+        self._source_type_index += 1
+
+        o = Option(
+            value=lambda: DataObjectSelect(self._source_type_to_data_objects[source_type]),
+            keys=[index, source_type],
+            text=f"{BColors.HEADER.value}({index}) --------------------------------{source_type.name:{'-'}<{21}}--------------------{BColors.ENDC.value}",
+        )
+
+        super().append(o)
+
+        return o
+
+    def append(self, option: Union[Option, DataObject]):
+        if isinstance(option, DataObject):
+            data_object = option
+            option = self.option_from_data_object(data_object)
+        else:
+            data_object = option.value
+
+        for source_type in data_object.source_collection.source_types(only_with_page=True):
+            self._source_type_to_data_objects[source_type].append(option)
+
+        super().append(option)
+
+    def __iter__(self):
+        source_types = list(sorted(self._source_type_to_data_objects.keys(), key=lambda x: x.name))
+        single_source = len(source_types) > 1
+
+        j = 0
+        for st in source_types:
+            if single_source:
+                yield self._source_type_to_option[st]
+
+            limit = min(15, len(self._source_type_to_data_objects[st])) if single_source else len(self._source_type_to_data_objects[st])
+
+            for i in range(limit):
+                o = self._source_type_to_data_objects[st][i]
+                o.index = j
+                yield o
+                j += 1
+
+        self._remap()

music_kraken/download/page_attributes.py

@@ -1,328 +0,0 @@
-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 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
-
-from ..pages import Page, EncyclopaediaMetallum, Musify, YouTube, YoutubeMusic, Bandcamp, Genius, INDEPENDENT_DB_OBJECTS
-
-
-ALL_PAGES: Set[Type[Page]] = {
-    # EncyclopaediaMetallum,
-    Genius,
-    Musify,
-    YoutubeMusic,
-    Bandcamp
-}
-
-if youtube_settings["use_youtube_alongside_youtube_music"]:
-    ALL_PAGES.add(YouTube)
-
-AUDIO_PAGES: Set[Type[Page]] = {
-    Musify,
-    YouTube,
-    YoutubeMusic,
-    Bandcamp
-}
-
-SHADY_PAGES: Set[Type[Page]] = {
-    Musify,
-}
-
-fetch_map = {
-    Song: "fetch_song",
-    Album: "fetch_album",
-    Artist: "fetch_artist",
-    Label: "fetch_label",
-}
-
-if DEBUG_PAGES:
-    DEBUGGING_PAGE = Bandcamp
-    print(f"Only downloading from page {DEBUGGING_PAGE}.")
-
-    ALL_PAGES = {DEBUGGING_PAGE}
-    AUDIO_PAGES = ALL_PAGES.union(AUDIO_PAGES)
-
-
-class Pages:
-    def __init__(self, exclude_pages: Set[Type[Page]] = None, exclude_shady: bool = False, download_options: DownloadOptions = None, fetch_options: FetchOptions = None):
-        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[SourceType, Type[Page]] = dict()
-        
-        exclude_pages = exclude_pages if exclude_pages is not None else set()
-        
-        if exclude_shady:
-            exclude_pages = exclude_pages.union(SHADY_PAGES)
-        
-        if not exclude_pages.issubset(ALL_PAGES):
-            raise ValueError(f"The excluded pages have to be a subset of all pages: {exclude_pages} | {ALL_PAGES}")
-        
-        def _set_to_tuple(page_set: Set[Type[Page]]) -> Tuple[Type[Page], ...]:
-            return tuple(sorted(page_set, key=lambda page: page.__name__))
-        
-        self._pages_set: Set[Type[Page]] = ALL_PAGES.difference(exclude_pages)
-        self.pages: Tuple[Type[Page], ...] = _set_to_tuple(self._pages_set)
-
-        self._audio_pages_set: Set[Type[Page]] = self._pages_set.intersection(AUDIO_PAGES)
-        self.audio_pages: Tuple[Type[Page], ...] = _set_to_tuple(self._audio_pages_set)
-        
-        for page_type in self.pages:
-            self._page_instances[page_type] = page_type(fetch_options=self.fetch_options, download_options=self.download_options)
-            self._source_to_page[page_type.SOURCE_TYPE] = page_type
-
-    def _get_page_from_enum(self, source_page: SourceType) -> Page:
-        if source_page not in self._source_to_page:
-            return None
-        return self._page_instances[self._source_to_page[source_page]]
-
-    def search(self, query: Query) -> SearchResults:
-        result = SearchResults()
-        
-        for page_type in self.pages:
-            result.add(
-                page=page_type,
-                search_result=self._page_instances[page_type].search(query=query)
-            )
-            
-        return result
-    
-    def fetch_details(self, data_object: DataObject, stop_at_level: int = 1, **kwargs) -> DataObject:
-        if not isinstance(data_object, INDEPENDENT_DB_OBJECTS):
-            return data_object
-        
-        source: Source
-        for source in data_object.source_collection.get_sources(source_type_sorting={
-            "only_with_page": True,
-        }):
-            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)
-
-        return data_object
-
-    def fetch_from_source(self, source: Source, **kwargs) -> Optional[DataObject]:
-        if not source.has_page:
-            return None
-        
-        source_type = source.page.get_source_type(source=source)
-        if source_type is None:
-            self.LOGGER.debug(f"Could not determine source type for {source}.")
-            return None
-
-        func = getattr(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
-
-    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 _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
-        
-        return False
-
-    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.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

@@ -1,8 +1,12 @@
-from typing import Tuple, Type, Dict, List, Generator, Union
+from __future__ import annotations
+
 from dataclasses import dataclass
+from typing import TYPE_CHECKING, Dict, Generator, List, Tuple, Type, Union
 
 from ..objects import DatabaseObject
-from ..pages import Page, EncyclopaediaMetallum, Musify
+
+if TYPE_CHECKING:
+    from . import Page
 
 
 @dataclass

music_kraken/pages/__init__.py

@@ -1,8 +1,52 @@
-from .encyclopaedia_metallum import EncyclopaediaMetallum
+import importlib
-from .musify import Musify
+import inspect
-from .youtube import YouTube
+import logging
-from .youtube_music import YoutubeMusic
+import pkgutil
-from .bandcamp import Bandcamp
+import sys
-from .genius import Genius
+from collections import defaultdict
+from copy import copy
+from pathlib import Path
+from typing import Dict, Generator, List, Set, Type
 
-from .abstract import Page, INDEPENDENT_DB_OBJECTS
+from ._bandcamp import Bandcamp
+from ._encyclopaedia_metallum import EncyclopaediaMetallum
+from ._genius import Genius
+from ._musify import Musify
+from ._youtube import YouTube
+from ._youtube_music import YoutubeMusic
+
+
+def import_children():
+    _page_directory = Path(__file__).parent
+    _stem_blacklist = set(["__pycache__", "__init__"])
+
+    for _file in _page_directory.iterdir():
+        if _file.stem in _stem_blacklist:
+            continue
+        
+        logging.debug(f"importing {_file.absolute()}")
+        exec(f"from . import {_file.stem}")
+
+# module_blacklist = set(sys.modules.keys())
+import_children()
+
+"""
+classes = set()
+
+print(__name__)
+for module_name, module in sys.modules.items():
+    if module_name in module_blacklist or not module_name.startswith(__name__):
+        continue
+
+    print("scanning module", module_name)
+    for name, obj in inspect.getmembers(module, predicate=inspect.isclass):
+        _module = obj.__module__
+        if _module.startswith(__name__) and hasattr(obj, "SOURCE_TYPE"):
+            print("checking object", name, obj.__module__)
+            classes.add(obj)
+    print()
+
+print(*(c.__name__ for c in classes), sep=",\t")
+
+__all__ = [c.__name__ for c in classes]
+"""

music_kraken/pages/_bandcamp.py

@@ -1,33 +1,22 @@
-from typing import List, Optional, Type
-from urllib.parse import urlparse, urlunparse
 import json
 from enum import Enum
-from bs4 import BeautifulSoup
+from typing import List, Optional, Type
-import pycountry
+from urllib.parse import urlparse, urlunparse
+
+import pycountry
+from bs4 import BeautifulSoup
 
-from ..objects import Source, DatabaseObject
-from .abstract import Page
-from ..objects import (
-    Artist,
-    Source,
-    SourceType,
-    Song,
-    Album,
-    Label,
-    Target,
-    Contact,
-    ID3Timestamp,
-    Lyrics,
-    FormattedText,
-    Artwork,
-)
 from ..connection import Connection
+from ..download import Page
+from ..objects import (Album, Artist, Artwork, Contact, DatabaseObject,
+                       FormattedText, ID3Timestamp, Label, Lyrics, Song,
+                       Source, SourceType, Target)
 from ..utils import dump_to_file
-from ..utils.enums import SourceType, ALL_SOURCE_TYPES
+from ..utils.config import logging_settings, main_settings
-from ..utils.support_classes.download_result import DownloadResult
+from ..utils.enums import ALL_SOURCE_TYPES, SourceType
-from ..utils.string_processing import clean_song_title
-from ..utils.config import main_settings, logging_settings
 from ..utils.shared import DEBUG
+from ..utils.string_processing import clean_song_title
+from ..utils.support_classes.download_result import DownloadResult
 
 if DEBUG:
     from ..utils import dump_to_file

music_kraken/pages/_encyclopaedia_metallum.py

@@ -1,31 +1,20 @@
 from collections import defaultdict
-from typing import List, Optional, Dict, Type, Union
+from typing import Dict, List, Optional, Type, Union
-from bs4 import BeautifulSoup
+from urllib.parse import urlencode, urlparse
+
 import pycountry
-from urllib.parse import urlparse, urlencode
+from bs4 import BeautifulSoup
 
 from ..connection import Connection
-from ..utils.config import logging_settings
+from ..download import Page
-from .abstract import Page
+from ..objects import (Album, Artist, DatabaseObject, FormattedText,
-from ..utils.enums import SourceType, ALL_SOURCE_TYPES
+                       ID3Timestamp, Label, Lyrics, Options, Song, Source)
-from ..utils.enums.album import AlbumType
-from ..utils.support_classes.query import Query
-from ..objects import (
-    Lyrics,
-    Artist,
-    Source,
-    Song,
-    Album,
-    ID3Timestamp,
-    FormattedText,
-    Label,
-    Options,
-    DatabaseObject
-)
-from ..utils.shared import DEBUG
 from ..utils import dump_to_file
-
+from ..utils.config import logging_settings
-
+from ..utils.enums import ALL_SOURCE_TYPES, SourceType
+from ..utils.enums.album import AlbumType
+from ..utils.shared import DEBUG
+from ..utils.support_classes.query import Query
 
 ALBUM_TYPE_MAP: Dict[str, AlbumType] = defaultdict(lambda: AlbumType.OTHER, {
     "Full-length": AlbumType.STUDIO_ALBUM,
@@ -207,6 +196,7 @@ def create_grid(
 
 
 class EncyclopaediaMetallum(Page):
+    REGISTER = False
     SOURCE_TYPE = ALL_SOURCE_TYPES.ENCYCLOPAEDIA_METALLUM
     LOGGER = logging_settings["metal_archives_logger"]
     

music_kraken/pages/_genius.py

@@ -1,33 +1,22 @@
-from typing import List, Optional, Type
-from urllib.parse import urlparse, urlunparse, urlencode
 import json
 from enum import Enum
-from bs4 import BeautifulSoup
+from typing import List, Optional, Type
-import pycountry
+from urllib.parse import urlencode, urlparse, urlunparse
+
+import pycountry
+from bs4 import BeautifulSoup
 
-from ..objects import Source, DatabaseObject
-from .abstract import Page
-from ..objects import (
-    Artist,
-    Source,
-    SourceType,
-    Song,
-    Album,
-    Label,
-    Target,
-    Contact,
-    ID3Timestamp,
-    Lyrics,
-    FormattedText,
-    Artwork,
-)
 from ..connection import Connection
+from ..download import Page
+from ..objects import (Album, Artist, Artwork, Contact, DatabaseObject,
+                       FormattedText, ID3Timestamp, Label, Lyrics, Song,
+                       Source, SourceType, Target)
 from ..utils import dump_to_file, traverse_json_path
-from ..utils.enums import SourceType, ALL_SOURCE_TYPES
+from ..utils.config import logging_settings, main_settings
-from ..utils.support_classes.download_result import DownloadResult
+from ..utils.enums import ALL_SOURCE_TYPES, SourceType
-from ..utils.string_processing import clean_song_title
-from ..utils.config import main_settings, logging_settings
 from ..utils.shared import DEBUG
+from ..utils.string_processing import clean_song_title
+from ..utils.support_classes.download_result import DownloadResult
 
 if DEBUG:
     from ..utils import dump_to_file

music_kraken/pages/_musify.py

@@ -1,34 +1,23 @@
 from collections import defaultdict
 from dataclasses import dataclass
 from enum import Enum
-from typing import List, Optional, Type, Union, Generator, Dict, Any
+from typing import Any, Dict, Generator, List, Optional, Type, Union
 from urllib.parse import urlparse
 
 import pycountry
 from bs4 import BeautifulSoup
 
 from ..connection import Connection
-from .abstract import Page
+from ..download import Page
-from ..utils.enums import SourceType, ALL_SOURCE_TYPES
+from ..objects import (Album, Artist, Artwork, DatabaseObject, FormattedText,
-from ..utils.enums.album import AlbumType, AlbumStatus
+                       ID3Timestamp, Label, Lyrics, Song, Source, Target)
-from ..objects import (
+from ..utils import shared, string_processing
-    Artist,
-    Source,
-    Song,
-    Album,
-    ID3Timestamp,
-    FormattedText,
-    Label,
-    Target,
-    DatabaseObject,
-    Lyrics,
-    Artwork
-)
 from ..utils.config import logging_settings, main_settings
-from ..utils import string_processing, shared
+from ..utils.enums import ALL_SOURCE_TYPES, SourceType
+from ..utils.enums.album import AlbumStatus, AlbumType
 from ..utils.string_processing import clean_song_title
-from ..utils.support_classes.query import Query
 from ..utils.support_classes.download_result import DownloadResult
+from ..utils.support_classes.query import Query
 
 """
 https://musify.club/artist/ghost-bath-280348?_pjax=#bodyContent

music_kraken/pages/_youtube.py

@@ -1,29 +1,19 @@
-from typing import List, Optional, Type, Tuple
-from urllib.parse import urlparse, urlunparse, parse_qs
 from enum import Enum
+from typing import List, Optional, Tuple, Type
+from urllib.parse import parse_qs, urlparse, urlunparse
 
 import python_sponsorblock
 
-from ..objects import Source, DatabaseObject, Song, Target
-from .abstract import Page
-from ..objects import (
-    Artist,
-    Source,
-    Song,
-    Album,
-    Label,
-    Target,
-    FormattedText,
-    ID3Timestamp
-)
 from ..connection import Connection
+from ..download import Page
+from ..objects import (Album, Artist, DatabaseObject, FormattedText,
+                       ID3Timestamp, Label, Song, Source, Target)
+from ..utils.config import logging_settings, main_settings, youtube_settings
+from ..utils.enums import ALL_SOURCE_TYPES, SourceType
 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
+from ._youtube_music.super_youtube import (SuperYouTube, YouTubeUrl,
-
+                                           YouTubeUrlType, get_invidious_url)
-from .youtube_music.super_youtube import SuperYouTube, YouTubeUrl, get_invidious_url, YouTubeUrlType
-
 
 """
 - https://yt.artemislena.eu/api/v1/search?q=Zombiez+-+Topic&page=1&date=none&type=channel&duration=none&sort=relevance
@@ -38,7 +28,7 @@ def get_piped_url(path: str = "", params: str = "", query: str = "", fragment: s
 
 
 class YouTube(SuperYouTube):
-    # CHANGE
+    REGISTER = youtube_settings["use_youtube_alongside_youtube_music"]
     SOURCE_TYPE = ALL_SOURCE_TYPES.YOUTUBE
 
     def __init__(self, *args, **kwargs):

music_kraken/pages/_youtube_music/_list_render.py

@@ -3,7 +3,6 @@ from enum import Enum
 
 from ...utils.config import logging_settings
 from ...objects import Source, DatabaseObject
-from ..abstract import Page
 from ...objects import (
     Artist,
     Source,

music_kraken/pages/_youtube_music/_music_object_render.py

@@ -6,7 +6,6 @@ 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,

music_kraken/pages/_youtube_music/super_youtube.py

@@ -1,26 +1,17 @@
-from typing import List, Optional, Type, Tuple
-from urllib.parse import urlparse, urlunparse, parse_qs
 from enum import Enum
-import requests
+from typing import List, Optional, Tuple, Type
+from urllib.parse import parse_qs, urlparse, urlunparse
 
 import python_sponsorblock
+import requests
 
-from ...objects import Source, DatabaseObject, Song, Target
-from ..abstract import Page
-from ...objects import (
-    Artist,
-    Source,
-    Song,
-    Album,
-    Label,
-    Target,
-    FormattedText,
-    ID3Timestamp
-)
 from ...connection import Connection
+from ...download import Page
+from ...objects import (Album, Artist, DatabaseObject, FormattedText,
+                        ID3Timestamp, Label, Song, Source, Target)
+from ...utils.config import logging_settings, main_settings, youtube_settings
+from ...utils.enums import ALL_SOURCE_TYPES, SourceType
 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:

music_kraken/pages/_youtube_music/youtube_music.py

@@ -1,46 +1,33 @@
-from __future__ import unicode_literals, annotations
+from __future__ import annotations, unicode_literals
 
-from typing import Dict, List, Optional, Set, Type
+import json
-from urllib.parse import urlparse, urlunparse, quote, parse_qs, urlencode
 import logging
 import random
-import json
-from dataclasses import dataclass
 import re
-from functools import lru_cache
 from collections import defaultdict
+from dataclasses import dataclass
+from functools import lru_cache
+from typing import Dict, List, Optional, Set, Type
+from urllib.parse import parse_qs, quote, urlencode, urlparse, urlunparse
 
 import youtube_dl
 from youtube_dl.extractor.youtube import YoutubeIE
 from youtube_dl.utils import DownloadError
 
+from ...connection import Connection
+from ...download import Page
+from ...objects import Album, Artist, Artwork
+from ...objects import DatabaseObject as DataObject
+from ...objects import (FormattedText, ID3Timestamp, Label, Lyrics, Song,
+                        Source, Target)
+from ...utils import dump_to_file, get_current_millis, traverse_json_path
+from ...utils.config import logging_settings, main_settings, youtube_settings
+from ...utils.enums import ALL_SOURCE_TYPES, SourceType
+from ...utils.enums.album import AlbumType
 from ...utils.exception.config import SettingValueError
-from ...utils.config import main_settings, youtube_settings, logging_settings
 from ...utils.shared import DEBUG, DEBUG_YOUTUBE_INITIALIZING
 from ...utils.string_processing import clean_song_title
-from ...utils import get_current_millis, traverse_json_path
-
-from ...utils import dump_to_file
-
-from ..abstract import Page
-from ...objects import (
-    DatabaseObject as DataObject,
-    Source,
-    FormattedText,
-    ID3Timestamp,
-    Artwork,
-    Artist,
-    Song,
-    Album,
-    Label,
-    Target,
-    Lyrics,
-)
-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
-
 from ._list_render import parse_renderer
 from ._music_object_render import parse_run_element
 from .super_youtube import SuperYouTube

music_kraken/pages/abstract.py

@@ -1,157 +0,0 @@
-import logging
-import random
-import re
-from copy import copy
-from pathlib import Path
-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
-
-from ..connection import Connection
-from ..objects import (
-    Song,
-    Source,
-    Album,
-    Artist,
-    Target,
-    DatabaseObject,
-    Options,
-    Collection,
-    Label,
-)
-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, 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"]))
-
-@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:
-    SOURCE_TYPE: SourceType
-    LOGGER: logging.Logger
-
-    def __new__(cls, *args, **kwargs):
-        cls.LOGGER = logging.getLogger(cls.__name__)
-
-        return super().__new__(cls)
-
-    def __init__(self, download_options: DownloadOptions = None, fetch_options: FetchOptions = None):
-        self.SOURCE_TYPE.register_page(self)
-        
-        self.download_options: DownloadOptions = download_options or DownloadOptions()
-        self.fetch_options: FetchOptions = fetch_options or FetchOptions()
-
-    def _search_regex(self, pattern, string, default=None, fatal=True, flags=0, group=None):
-        """
-        Perform a regex search on the given string, using a single or a list of
-        patterns returning the first matching group.
-        In case of failure return a default value or raise a WARNING or a
-        RegexNotFoundError, depending on fatal, specifying the field name.
-        """
-
-        if isinstance(pattern, str):
-            mobj = re.search(pattern, string, flags)
-        else:
-            for p in pattern:
-                mobj = re.search(p, string, flags)
-                if mobj:
-                    break
-
-        if mobj:
-            if group is None:
-                # return the first matching group
-                return next(g for g in mobj.groups() if g is not None)
-            elif isinstance(group, (list, tuple)):
-                return tuple(mobj.group(g) for g in group)
-            else:
-                return mobj.group(group)
-
-        return default
-
-    def get_source_type(self, source: Source) -> Optional[Type[DatabaseObject]]:
-        return None
-
-    def get_soup_from_response(self, r: requests.Response) -> BeautifulSoup:
-        return BeautifulSoup(r.content, "html.parser")
-
-    # to search stuff
-    def search(self, query: Query) -> List[DatabaseObject]:
-        music_object = query.music_object
-
-        search_functions = {
-            Song: self.song_search,
-            Album: self.album_search,
-            Artist: self.artist_search,
-            Label: self.label_search
-        }
-
-        if type(music_object) in search_functions:
-            r = search_functions[type(music_object)](music_object)
-            if r is not None and len(r) > 0:
-                return r
-
-        r = []
-        for default_query in query.default_search:
-            for single_option in self.general_search(default_query):
-                r.append(single_option)
-
-        return r
-
-    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 []
-
-    # to fetch stuff
-    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()
-
-    # to download stuff
-    def get_skip_intervals(self, song: Song, source: Source) -> List[Tuple[float, float]]:
-        return []
-
-    def post_process_hook(self, song: Song, temp_target: Target, **kwargs):
-        pass
-
-    def download_song_to_target(self, source: Source, target: Target, desc: str = None) -> DownloadResult:
-        return DownloadResult()

music_kraken/utils/enums/__init__.py

@@ -17,6 +17,9 @@ class SourceType:
     def register_page(self, page: Page):
         self.page = page
 
+    def deregister_page(self):
+        self.page = None
+
     def __hash__(self):
         return hash(self.name)
 

music_kraken/utils/exception/__init__.py

@@ -3,6 +3,9 @@ class MKBaseException(Exception):
         self.message = message
         super().__init__(message, **kwargs)
 
+# Compose exceptions. Those usually mean a bug on my side.
+class MKComposeException(MKBaseException):
+    pass
 
 # Downloading
 class MKDownloadException(MKBaseException):

music_kraken/utils/shared.py

@@ -1,11 +1,11 @@
-import random
-from dotenv import load_dotenv
-from pathlib import Path
 import os
+import random
+from pathlib import Path
 
+from dotenv import load_dotenv
 
-from .path_manager import LOCATIONS
 from .config import main_settings
+from .path_manager import LOCATIONS
 
 if not load_dotenv(Path(__file__).parent.parent.parent / ".env"):
     load_dotenv(Path(__file__).parent.parent.parent / ".env.example")
@@ -51,3 +51,6 @@ have fun :3""".strip()
 URL_PATTERN = r"https?://(?:[-\w.]|(?:%[\da-fA-F]{2}))+"
 INT_PATTERN = r"^\d*$"
 FLOAT_PATTERN = r"^[\d|\,|\.]*$"
+
+
+ALPHABET = "abcdefghijklmnopqrstuvwxyz"