added a new custom exception, and an api, to fetch direct url

src/music_kraken/download/download.py

@@ -1,6 +1,6 @@
 from typing import Optional, Tuple, Type, Set, Union, List
 
-from . import page_attributes
+from .page_attributes import Pages
 from ..pages import Page
 from ..objects import Song, Album, Artist, Label, Source
 
@@ -10,29 +10,11 @@ MusicObject = Union[Song, Album, Artist, Label]
 class Download:
     def __init__(
             self,
-            pages: Tuple[Page] = page_attributes.ALL_PAGES,
+            exclude_pages: Set[Type[Page]] = None, 
-            exclude_pages=None,
+            exclude_shady: bool = False
-            exclude_shady: bool = False,
     ) -> None:
-        if exclude_pages is None:
-            exclude_pages = set()
 
-        _page_list: List[Page] = []
+        self.pages: Pages = Pages(exclude_pages=exclude_pages, exclude_shady=exclude_shady)
-        _audio_page_list: List[Page] = []
-
-        for page in pages:
-            if exclude_shady and page in page_attributes.SHADY_PAGES:
-                continue
-            if page in exclude_pages:
-                continue
-
-            _page_list.append(page)
-
-            if page in page_attributes.AUDIO_PAGES:
-                _audio_page_list.append(page)
-
-        self.pages: Tuple[Page] = tuple(_page_list)
-        self.audio_pages: Tuple[Page] = tuple(_audio_page_list)
 
     def fetch_details(self, music_object: MusicObject) -> MusicObject:
         for page in self.pages:

src/music_kraken/download/page_attributes.py

@@ -1,9 +1,10 @@
 from typing import Tuple, Type, Dict, List, Set
 
 from .results import SearchResults
-from ..objects import DatabaseObject
+from ..objects import DatabaseObject, Source
 from ..utils.enums.source import SourcePages
 from ..utils.support_classes import Query, DownloadResult
+from ..utils.exception.download import UrlNotFoundException
 from ..pages import Page, EncyclopaediaMetallum, Musify, INDEPENDENT_DB_OBJECTS
 
 ALL_PAGES: Set[Type[Page]] = {
@@ -83,15 +84,13 @@ class Pages:
         
         return DownloadResult(error_message=f"No audio source has been found for {music_object}.")
 
+    def fetch_url(self, url: str, stop_at_level: int = 2) -> DatabaseObject:
+        source = Source.match_url(url, SourcePages.MANUAL)
         
-"""
+        if source is None:
-# this needs to be case-insensitive
+            raise UrlNotFoundException(url=url)
-SHORTHANDS = ('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z')
-for i, page in enumerate(ALL_PAGES):
-    NAME_PAGE_MAP[type(page).__name__.lower()] = page
-    NAME_PAGE_MAP[SHORTHANDS[i].lower()] = page
         
-    PAGE_NAME_MAP[type(page)] = SHORTHANDS[i]
+        _actual_page = self._source_to_page[source.page_enum]
         
-    SOURCE_PAGE_MAP[page.SOURCE_TYPE] = page
+        
-"""
+        return self._page_instances[_actual_page].fetch_object_from_source(source=source, stop_at_level=stop_at_level)

src/music_kraken/download/results.py

@@ -16,6 +16,11 @@ class SearchResults:
         self.results = Dict[Type[Page], List[DatabaseObject]] = {}
         
     def add(self, page: Type[Page], search_result: List[DatabaseObject]):
+        """
+        adds a list of found music objects to the according page
+        WARNING: if a page already has search results, they are just gonna be overwritten
+        """
+        
         self.results[page] = search_result
         
     def __str__(self) -> str:

src/music_kraken/utils/exception/download.py

@@ -0,0 +1,11 @@
+class DownloadException(Exception):
+    pass
+
+
+class UrlNotFoundException(DownloadException):
+    def __init__(self, url: str, *args: object) -> None:
+        self.url = url
+        super().__init__(*args)
+        
+    def __str__(self) -> str:
+        return f"Couldn't find the page of {self.url}"