#

 # Author: Brandon Mathis

 # A full rewrite based on the work of: Josediaz Gonzalez - https://github.com/josegonzalez/josediazgonzalez.com/blob/master/_plugins/blockquote.rb

 #

 # Outputs a string with a given attribution as a quote
 #

 #   {% blockquote Bobby Willis http://google.com/search?q=pants the search for bobby's pants %}

 #   Wheeee!
 #   {% endblockquote %}
 #   ...
 #   <blockquote>
 #     <p>Wheeee!</p>
 #     <footer>

 #     <strong>Bobby Willis</strong><cite><a href="http://google.com/search?q=pants">The Search For Bobby's Pants</a>

 #   </blockquote>
 #

 require './plugins/titlecase.rb'
 

 module Jekyll
 
   class Blockquote < Liquid::Block

     FullCiteWithTitle = /(\S.*)\s+(https?:\/\/)(\S+)\s+(.+)/i
     FullCite = /(\S.*)\s+(https?:\/\/)(\S+)/i
     Author =  /(.+)/

 
     def initialize(tag_name, markup, tokens)
       @by = nil
       @source = nil
       @title = nil
       if markup =~ FullCiteWithTitle
         @by = $1
         @source = $2 + $3
         @title = $4.titlecase
       elsif markup =~ FullCite
         @by = $1
         @source = $2 + $3
       elsif markup =~ Author

         if $1 =~ /([^,]+),([^,]+)/
           @by = $1
           @title = $2.titlecase
         else
           @by = $1
         end

       end
       super
     end
 
     def render(context)

       quote = paragraphize(super.map(&:strip).join)
       author = "<strong>#{@by.strip}</strong>" if @by

       if @source
         url = @source.match(/https?:\/\/(.+)/)[1].split('/')
         parts = []
         url.each do |part|
           if (parts + [part]).join('/').length < 32
             parts << part
           end
         end
         source = parts.join('/')
         source << '/&hellip;' unless source == @source
       end

       if !@source.nil?
         cite = "<cite><a href='#{@source}'>#{(@title || source)}</a></cite>"
       elsif !@title.nil?
         cite = "<cite>#{@title}</cite>"
       end
       blockquote = if @by.nil?

         quote

       elsif cite

         "#{quote}<footer>#{author + cite}</footer>"

       else

         "#{quote}<footer>#{author}</footer>"

       end

       "<blockquote>#{blockquote}</blockquote>"

     end

 
     def paragraphize(input)
       "<p>#{input.gsub(/\n\n/, '</p><p>').gsub(/\n/, '<br/>')}</p>"
     end

   end
 end
 
 Liquid::Template.register_tag('blockquote', Jekyll::Blockquote)