[DD-542] Inline API v1 resources (circleci#6716)

* Try: middleman inline plugin.

* Inline all the things!

* Add: correct jquery verison and missing toc code.

* Clean: gemfile changes / js changes.

* Clean: remove unused code.

Author: teesloane

src-api/config.rb

@@ -44,6 +44,7 @@
   # out the following two lines has been known to help
   activate :minify_css
   activate :minify_javascript
+  activate :inline
   # activate :relative_assets
   # activate :asset_hash
   # activate :gzip
@@ -55,4 +56,5 @@
 
 helpers do
   require './lib/toc_data.rb'
+  require './lib/middleman-inline.rb'
 end

src-api/lib/middleman-inline.rb

@@ -0,0 +1,31 @@
+require "middleman-core"
+
+# original code: https://github.com/miloshadzic/middleman-inline/blob/master/lib/middleman-inline/extension.rb
+# I'm vendoring this because I couldn't get the gem working.
+class MiddlemanInline < ::Middleman::Extension
+  helpers do
+    def inline_css(*args)
+      args.map do |arg|
+        "<style type='text/css'>#{render_resource(fname(arg, '.css'))}</style>"
+      end.join("\n")
+    end
+
+    private
+
+    def fname(str, ext)
+      str.concat(ext) unless str.match(ext)
+      str
+    end
+
+    def render_resource(fname)
+      x = sitemap.resources.find { |res| res.source_file.match(fname) }
+      x.render()
+    end
+  end
+end
+
+Middleman::Extensions.register :inline do
+  MiddlemanInline
+end
+
+