Storyboards: Move parser to its own file

src/invidious/videos.cr

@@ -177,65 +177,8 @@ struct Video
   # Misc. methods
 
   def storyboards
-    storyboards = info.dig?("storyboards", "playerStoryboardSpecRenderer", "spec")
+    container = info.dig?("storyboards") || JSON::Any.new("{}")
-      .try &.as_s.split("|")
+    return IV::Videos::Storyboard.from_yt_json(container)
-
-    if !storyboards
-      if storyboard = info.dig?("storyboards", "playerLiveStoryboardSpecRenderer", "spec").try &.as_s
-        return [{
-          url:               storyboard.split("#")[0],
-          width:             106,
-          height:            60,
-          count:             -1,
-          interval:          5000,
-          storyboard_width:  3,
-          storyboard_height: 3,
-          storyboard_count:  -1,
-        }]
-      end
-    end
-
-    items = [] of NamedTuple(
-      url: String,
-      width: Int32,
-      height: Int32,
-      count: Int32,
-      interval: Int32,
-      storyboard_width: Int32,
-      storyboard_height: Int32,
-      storyboard_count: Int32)
-
-    return items if !storyboards
-
-    url = URI.parse(storyboards.shift)
-    params = HTTP::Params.parse(url.query || "")
-
-    storyboards.each_with_index do |sb, i|
-      width, height, count, storyboard_width, storyboard_height, interval, _, sigh = sb.split("#")
-      params["sigh"] = sigh
-      url.query = params.to_s
-
-      width = width.to_i
-      height = height.to_i
-      count = count.to_i
-      interval = interval.to_i
-      storyboard_width = storyboard_width.to_i
-      storyboard_height = storyboard_height.to_i
-      storyboard_count = (count / (storyboard_width * storyboard_height)).ceil.to_i
-
-      items << {
-        url:               url.to_s.sub("$L", i).sub("$N", "M$M"),
-        width:             width,
-        height:            height,
-        count:             count,
-        interval:          interval,
-        storyboard_width:  storyboard_width,
-        storyboard_height: storyboard_height,
-        storyboard_count:  storyboard_count,
-      }
-    end
-
-    items
   end
 
   def paid

src/invidious/videos/storyboard.cr

@@ -0,0 +1,69 @@
+require "uri"
+require "http/params"
+
+module Invidious::Videos
+  struct Storyboard
+    # Parse the JSON structure from Youtube
+    def self.from_yt_json(container : JSON::Any)
+      storyboards = container.dig?("playerStoryboardSpecRenderer", "spec")
+        .try &.as_s.split("|")
+
+      if !storyboards
+        if storyboard = container.dig?("playerLiveStoryboardSpecRenderer", "spec").try &.as_s
+          return [{
+            url:               storyboard.split("#")[0],
+            width:             106,
+            height:            60,
+            count:             -1,
+            interval:          5000,
+            storyboard_width:  3,
+            storyboard_height: 3,
+            storyboard_count:  -1,
+          }]
+        end
+      end
+
+      items = [] of NamedTuple(
+        url: String,
+        width: Int32,
+        height: Int32,
+        count: Int32,
+        interval: Int32,
+        storyboard_width: Int32,
+        storyboard_height: Int32,
+        storyboard_count: Int32)
+
+      return items if !storyboards
+
+      url = URI.parse(storyboards.shift)
+      params = HTTP::Params.parse(url.query || "")
+
+      storyboards.each_with_index do |sb, i|
+        width, height, count, storyboard_width, storyboard_height, interval, _, sigh = sb.split("#")
+        params["sigh"] = sigh
+        url.query = params.to_s
+
+        width = width.to_i
+        height = height.to_i
+        count = count.to_i
+        interval = interval.to_i
+        storyboard_width = storyboard_width.to_i
+        storyboard_height = storyboard_height.to_i
+        storyboard_count = (count / (storyboard_width * storyboard_height)).ceil.to_i
+
+        items << {
+          url:               url.to_s.sub("$L", i).sub("$N", "M$M"),
+          width:             width,
+          height:            height,
+          count:             count,
+          interval:          interval,
+          storyboard_width:  storyboard_width,
+          storyboard_height: storyboard_height,
+          storyboard_count:  storyboard_count,
+        }
+      end
+
+      items
+    end
+  end
+end