done??

src/ytdl_sub/prebuilt_presets/helpers/url_categorized.yaml

@@ -0,0 +1,69 @@
+presets:
+  # Preset for categorizing URls like so
+  #
+  # subscription_name:
+  #   category_1:
+  #     - https://...1
+  #     - https://...2
+  #   category_2:
+  #     - url: https://...1
+  #       metadata_field_1: 2011
+  #       metadata_field_2: 'abc"
+  #   ...
+  #
+  # Metadata field of `url` must exist, other ones can be anything.
+  # Only supports a single level of nesting.
+  _url_categorized:
+    overrides:
+
+      # Parameters:
+      #   $0: url string or map containing url + metadata fields
+      #   $1: category key
+      #
+      # Output:
+      #  Map containing { url: ..., category: ..., metadata_field_1: ... }
+      "%flat_array__url_to_map_format": >-
+        {
+          %if(
+            %is_map($0),
+            %map_extend( $0, { "category": $1 } ),
+            { "url": $0, "category": $1 }
+        }
+
+      # Parameters:
+      #  $0: category key
+      #  $1: array of URLs in either string or map form
+      #
+      # Output:
+      #   Array containing [{ url: ..., category: ... }, ... ]
+      "%flat_array__category_to_map_format": >-
+        { %array_apply_fixed( $1, $0, %flat_array__url_to_map_format ) }
+
+      # Parameters:
+      #  $0: map containing fields { url: <url_value>, category: ... }
+      #
+      # Output:
+      #  Nested map containing { <url_value>: { url: <url_value>, category: ... } }
+      "%flat_array__url_keyed_map_format": >-
+        { { %map_get($0, "url"): $0 } }
+
+      # Creates an array in the form of [ { url: ..., category: ..., metadata_field_1: ... }, ... ]
+      category_url_array: >-
+        { %map_apply( subscription_dict, %flat_array__category_to_map_format ) }
+
+      # Creates a map in the form of { <url value>: { category: ..., metadata_field_1: ... }, ... }
+      category_url_map: >-
+        {
+          %array_reduce(
+            %array_apply( category_array, %flat_array__url_keyed_map_format ),
+            %map_extend
+          )
+        }
+
+      # Parameters:
+      #   $0: metadata field to fetch for the current url
+      #
+      # Output:
+      #   Metadata field value. Empty string/null if it does not exist
+      "%get_url_field": >-
+        { %map_get( %map_get( category_url_map, ytdl_sub_input_url, {} ), $0, null ) }