Pass version layout filepath to wowza

Author: jcoyne

app/models/stacks_file.rb

@@ -49,6 +49,18 @@ def cantaloupe_identifier
     CGI.escape(storage_root.relative_path)
   end
 
+  def wowza_identifier
+    file_path = storage_root.relative_path
+    streaming_url_file_segment = case File.extname(file_name)
+                                 when '.mp3'
+                                   "mp3:#{File.basename(file_path)}"
+                                 else
+                                   "mp4:#{File.basename(file_path)}"
+                                 end
+
+    "#{File.dirname(file_path)}/#{streaming_url_file_segment}"
+  end
+
   def storage_root
     @storage_root ||= StorageRoot.new(cocina:, file_name:)
   end

app/models/stacks_media_stream.rb

@@ -15,18 +15,6 @@ def initialize(stacks_file:)
            :embargo_release_date, :location, :world_viewable?, :no_download?, to: :stacks_rights
 
   def streaming_url
-    file_path = "#{stacks_file.storage_root.treeified_id.delete_prefix('/')}/#{streaming_url_file_segment}"
-    WowzaSecureToken.new(file_path:).streaming_url
-  end
-
-  private
-
-  def streaming_url_file_segment
-    case File.extname(file_name)
-    when '.mp3'
-      "mp3:#{file_name}"
-    else
-      "mp4:#{file_name}"
-    end
+    WowzaSecureToken.new(file_path: stacks_file.wowza_identifier).streaming_url
   end
 end

spec/requests/iiif/auth/v2/probe_service_spec.rb

@@ -214,7 +214,7 @@
                                                 "status" => 302
                                               })
       location = response.parsed_body.dig('location', 'id')
-      expect(location).to start_with 'https://sul-mediaserver.stanford.edu/stacks/_definst_/bb/000/cr/7262/mp4:SC0193_1982-013_b06_f01_1981-09-29.mp4/playlist.m3u8?wowzatokenendtime='
+      expect(location).to start_with 'https://sul-mediaserver.stanford.edu/stacks/_definst_/bb/000/cr/7262/bb000cr7262/content/mp4:8ff299eda08d7c506273840d52a03bf3/playlist.m3u8?wowzatokenendtime='
       expect(location).to end_with('=') # Token is md5 encoded
     end
   end