test in tv show collection

src/ytdl_sub/downloaders/url/downloader.py

@@ -25,6 +25,7 @@ from ytdl_sub.entries.script.variable_definitions import VARIABLES
 from ytdl_sub.entries.script.variable_definitions import VariableDefinitions
 from ytdl_sub.utils.file_handler import FileHandler
 from ytdl_sub.utils.logger import Logger
+from ytdl_sub.utils.script import ScriptUtils
 from ytdl_sub.utils.thumbnail import ThumbnailTypes
 from ytdl_sub.utils.thumbnail import download_and_convert_url_thumbnail
 from ytdl_sub.utils.thumbnail import try_convert_download_thumbnail
@@ -245,9 +246,13 @@ class MultiUrlDownloader(SourcePlugin[MultiUrlValidator]):
             .to_dict()
         )
 
-    @property
-    def metadata_ytdl_options(self) -> Dict:
+    def metadata_ytdl_options(self, scrape_reverse: bool) -> Dict:
         """
+        Parameters
+        ----------
+        scrape_reverse
+            Whether to scrape in reverse order
+
         Returns
         -------
         YTDL options dict for fetching metadata
@@ -255,6 +260,7 @@ class MultiUrlDownloader(SourcePlugin[MultiUrlValidator]):
         return (
             self._metadata_ytdl_options_builder.clone()
             .add(self.ytdl_option_defaults(), before=True)
+            .add({"playlistreverse": scrape_reverse} if scrape_reverse else None, before=True)
             .to_dict()
         )
 
@@ -390,16 +396,19 @@ class MultiUrlDownloader(SourcePlugin[MultiUrlValidator]):
                 yield entry_child
 
     def _download_url_metadata(
-        self, url: str, include_sibling_metadata: bool
+        self, url: str, include_sibling_metadata: bool, scrape_reverse: bool
     ) -> Tuple[List[EntryParent], List[Entry]]:
         """
         Downloads only info.json files and forms EntryParent trees
         """
+
         with self._separate_download_archives():
             entry_dicts = YTDLP.extract_info_via_info_json(
                 working_directory=self.working_directory,
-                ytdl_options_overrides=self.metadata_ytdl_options,
-                log_prefix_on_info_json_dl="Downloading metadata for",
+                ytdl_options_overrides=self.metadata_ytdl_options(scrape_reverse=scrape_reverse),
+                log_prefix_on_info_json_dl=(
+                    f"Downloading metadata {'in reverse ' if scrape_reverse else ''}for"
+                ),
                 url=url,
             )
 
@@ -448,7 +457,11 @@ class MultiUrlDownloader(SourcePlugin[MultiUrlValidator]):
                 continue
 
             parents, orphan_entries = self._download_url_metadata(
-                url=url, include_sibling_metadata=collection_url.include_sibling_metadata
+                url=url,
+                include_sibling_metadata=collection_url.include_sibling_metadata,
+                scrape_reverse=ScriptUtils.bool_formatter_output(
+                    self.overrides.apply_formatter(collection_url.scrape_reverse)
+                ),
             )
 
             # TODO: Encapsulate this logic into its own class
@@ -462,7 +475,9 @@ class MultiUrlDownloader(SourcePlugin[MultiUrlValidator]):
             for entry in self._iterate_entries(
                 parents=parents,
                 orphans=orphan_entries,
-                download_reversed=collection_url.download_reverse,
+                download_reversed=ScriptUtils.bool_formatter_output(
+                    self.overrides.apply_formatter(collection_url.download_reverse)
+                ),
             ):
                 entry.initialize_script(self.overrides).add(
                     {v.ytdl_sub_input_url: self.overrides.apply_formatter(collection_url.url)}

src/ytdl_sub/downloaders/url/validators.py

@@ -8,6 +8,7 @@ from ytdl_sub.config.validators.options import OptionsValidator
 from ytdl_sub.script.parser import parse
 from ytdl_sub.validators.strict_dict_validator import StrictDictValidator
 from ytdl_sub.validators.string_formatter_validators import DictFormatterValidator
+from ytdl_sub.validators.string_formatter_validators import OverridesBooleanFormatterValidator
 from ytdl_sub.validators.string_formatter_validators import OverridesStringFormatterValidator
 from ytdl_sub.validators.string_formatter_validators import StringFormatterValidator
 from ytdl_sub.validators.validators import BoolValidator
@@ -49,6 +50,7 @@ class UrlValidator(StrictDictValidator):
         "source_thumbnails",
         "playlist_thumbnails",
         "download_reverse",
+        "scrape_reverse",
         "include_sibling_metadata",
     }
 
@@ -77,7 +79,10 @@ class UrlValidator(StrictDictValidator):
             key="playlist_thumbnails", validator=UrlThumbnailListValidator, default=[]
         )
         self._download_reverse = self._validate_key(
-            key="download_reverse", validator=BoolValidator, default=True
+            key="download_reverse", validator=OverridesBooleanFormatterValidator, default="True"
+        )
+        self._scrape_reverse = self._validate_key(
+            key="scrape_reverse", validator=OverridesBooleanFormatterValidator, default="False"
         )
         self._include_sibling_metadata = self._validate_key(
             key="include_sibling_metadata", validator=BoolValidator, default=False
@@ -148,12 +153,20 @@ class UrlValidator(StrictDictValidator):
         return self._source_thumbnails
 
     @property
-    def download_reverse(self) -> bool:
+    def download_reverse(self) -> OverridesBooleanFormatterValidator:
         """
         Optional. Whether to download entries in the reverse order of the metadata downloaded.
         Defaults to True.
         """
-        return self._download_reverse.value
+        return self._download_reverse
+
+    @property
+    def scrape_reverse(self) -> OverridesBooleanFormatterValidator:
+        """
+        Optional. Whether to scrape entry metadata in the reverse order.
+        Defaults to False.
+        """
+        return self._scrape_reverse
 
     @property
     def include_sibling_metadata(self) -> bool:

src/ytdl_sub/entries/script/custom_functions.py

@@ -30,6 +30,11 @@ class CustomFunctions:
         Queries a playlist-based URL using yt-dlp to see if it is ordered from newest
         (lower playlist number) to oldest.
         """
+        # Top-level allow-list of notorious playlists that can be
+        # ordered in either direction
+        if not any(["youtube.com/playlist" in url.value]):
+            return Boolean("True")
+
         info_only_kwargs = {
             "skip_download": True,
             "writethumbnail": False,
@@ -47,7 +52,7 @@ class CustomFunctions:
             if (
                 not isinstance(url_info, dict)
                 or not isinstance(url_info.get("entries"), list)
-                or not len(url_info["entries"])
+                or len(url_info["entries"]) == 0
             ):
                 return Boolean(False)
 
@@ -66,7 +71,7 @@ class CustomFunctions:
 
             return Boolean(True)
 
-        except Exception:
+        except Exception:  # pylint: disable=broad-except
             return Boolean(False)
 
     @staticmethod

src/ytdl_sub/entries/script/function_scripts.py

@@ -5,6 +5,7 @@ from ytdl_sub.entries.script.variable_definitions import VariableDefinitions
 
 v: VariableDefinitions = VARIABLES
 
+# TODO: Make this a proper class with docstrings
 CUSTOM_FUNCTION_SCRIPTS: Dict[str, str] = {
     #############################################################################################
     # SIBLING GETTER

src/ytdl_sub/prebuilt_presets/tv_show/tv_show_collection.yaml

@@ -38,6 +38,10 @@ presets:
             uid: "avatar_uncropped"
           - name: "{tv_show_fanart_file_name}"
             uid: "banner_uncropped"
+        scrape_reverse: >-
+          { %not( %is_playlist_ordered_by_newest( collection_season_1_url )) }
+        download_reverse: >-
+          { %is_playlist_ordered_by_newest( collection_season_1_url ) }
 
     output_directory_nfo_tags:
       tags: