API: Add a 'published' video parameter for related videos

src/invidious/jsonify/api_v1/video_json.cr

@@ -245,6 +245,12 @@ module Invidious::JSONify::APIv1
                 json.field "lengthSeconds", rv["length_seconds"]?.try &.to_i
                 json.field "viewCountText", rv["short_view_count"]?
                 json.field "viewCount", rv["view_count"]?.try &.empty? ? nil : rv["view_count"].to_i64
+                json.field "published", rv["published"]?
+                if !rv["published"]?.nil?
+                  json.field "publishedText", translate(locale, "`x` ago", recode_date(Time.parse_rfc3339(rv["published"].to_s), locale))
+                else
+                  json.field "publishedText", ""
+                end
               end
             end
           end

src/invidious/videos/parser.cr

@@ -36,6 +36,13 @@ def parse_related_video(related : JSON::Any) : Hash(String, JSON::Any)?
 
   LOGGER.trace("parse_related_video: Found \"watchNextEndScreenRenderer\" container")
 
+  if published_time_text = related["publishedTimeText"]?
+    decoded_time = decode_date(published_time_text["simpleText"].to_s)
+    published = decoded_time.to_rfc3339.to_s
+  else
+    published = nil
+  end
+
   # TODO: when refactoring video types, make a struct for related videos
   # or reuse an existing type, if that fits.
   return {
@@ -47,6 +54,7 @@ def parse_related_video(related : JSON::Any) : Hash(String, JSON::Any)?
     "view_count"       => JSON::Any.new(view_count || "0"),
     "short_view_count" => JSON::Any.new(short_view_count || "0"),
     "author_verified"  => JSON::Any.new(author_verified),
+    "published"        => JSON::Any.new(published || ""),
   }
 end