require_relative 'rails_base'
require 'github/markup'
require 'nokogiri'
require 'ro_html_handler'

module RoCommands

  class PostCell
    include Celluloid

    def handle_single(p)
      tag_name = File.dirname(p)
      title, content = if p.match(%r{\.md$})
                         handle_markdown(p)
                       elsif p.match(%r{(.+)\.html$})
                         handle_html(p)
                       end
      return {title: title, content: content}
      #post.tags.create name: tag_name
    end

    private
    def handle_markdown(p)
      title = File.basename(p).gsub(%r{\.\w+$}, "")
      content = GitHub::Markup::Markdown.new.render(RoFile.read(p))
      return title, content
    end

    def handle_html(p)
      origin = RoFile.read(p)
      title = get_title(origin)
      content = get_smth_in_html(origin, 'inner_html')
      return title, content
    end

    def get_title(html)
      doc(html) do |d|
        d.css('title').text
      end
    end

    def get_smth_in_html(html, smth)
      doc(html) do |d|
        d.css("body").send(:"#{smth}")
      end
    end


    private

    include RoHtmlHandler

  end

  class PostHandler < RailsBase
    desc usage("handle"), ""

    def handle
      path = File.join(::Rails.root, 'posts')
      futures = []
      ::Find.find(path) do |p|
        if test(?f, p) and p.match(%r{(.+)\.(html|md)})
          futures << PostCell.new.future.handle_single(p)
        end
      end

      futures.map(&:value).each do |record|
        post_create(record)
      end
    end

    private
    def post_create(attrs={})
      if attrs[:title]
        Out.table("creating a record", attrs[:title], "file:#{File.basename __FILE__} line:#{__LINE__}")

        post = Post.find_or_initialize_by(title: attrs[:title])
        post.update(attrs)
        post
      else
        raise "create a post must be has a title"
      end
    end
  end
end