require 'time'

class FrenchPress
  class Post
    # Represents a generic post (i.e. a text post)
    class Generic
      attr_reader :file_name
      attr_writer :parent_blog

      def initialize(content, file_type = nil)
        title = (rand(36**9) + rand(36**10)).to_s(36) # Random title
        assign_variables(:@content => content,
                         :@blog => FrenchPress.working,
                         :@date => Time.now,
                         :@title => title,
                         :@file_type => file_type)
        derive_variables
      end

      def assign_variables(args)
        args.each(&method(:instance_variable_set)) # Thanks, SO
      end

      def derive_variables
        @file_name = @date.strftime '%Y-%m-%d' + '-' + @title
        @file_suffix = 'jpeg' if @file_suffix == 'jpg'
        @file_suffix ||= 'html'
      end

      def tags
        [
          '---',
          "type: #{@type}",
          "date: #{@date.strftime '%Y-%m-%d %H:%M:%S'}",
          'layout: post',
          "title: #{@title}",
          '---'
        ]
      end

      def render
        @content
      end

      def render_as_quote
        "<a href=\"#{@parent_blog[:url]}\" class=\"quote-attr\">" \
          "#{@parent_blog[:host]}</a>\n" \
          "<blockquote>#{render}</blockquote>"
      end

      def render_with_tags
        (tags << render).join("\n")
      end
    end
  end
end