Refactor the page to be the base class

lib/dimples/page.rb

@@ -1,8 +1,59 @@
 # frozen_string_literal: true
 
-require_relative 'document'
-
 module Dimples
-  class Page < Document
+  # A single page on a site.
+  class Page
+    attr_accessor :metadata, :contents, :path, :rendered_contents
+
+    def initialize(path, config)
+      @path = File.expand_path(path)
+      @config = config
+      @metadata, @contents = Dimples::FrontMatter.parse(File.read(@path))
+    end
+
+    def filename
+      "#{basename}.#{extension}"
+    end
+
+    def basename
+      @metadata.fetch(:filename, 'index')
+    end
+
+    def extension
+      @metadata.fetch(:extension, 'html')
+    end
+
+    def layout
+      @metadata.fetch(:layout, nil)
+    end
+
+    def slug
+      @metadata.fetch(:slug, File.basename(@path, File.extname(@path)))
+    end
+
+    def template
+      @template ||= template_class.new(nil, 1, template_options) { @contents }
+    end
+
+    def output_directory
+      @output_directory ||= File.dirname(@path).gsub(@config[:sources][:pages], '') << '/'
+    end
+
+    def url
+      @url ||= String.new.tap do |url|
+        url << output_directory unless output_directory == '/'
+        url << ('/' + filename) unless basename == 'index'
+      end
+    end
+
+    private
+
+    def template_class
+      Tilt::ErbTemplate
+    end
+
+    def template_options
+      {}
+    end
   end
 end