module Jitai
  require 'jitai/railtie.rb' if defined?(Rails)

  class FontManager
    attr_accessor :moz_path, :ie_path, :cwd
    
    def initialize(path= "public")
      @moz_path = "#{path}/stylesheets/fonts_moz.css"
      @ie_path = "#{path}/stylesheets/fonts_ie.css"
      @cwd = "public/fonts/"
    end

    def refresh
      Dir.mkdir(@cwd) if !(File.directory? @cwd)
      Dir.foreach(@cwd) do |font_file|
        if !(File.directory?(font_file))
          # Search for two different formats                                                                                                                           
          conversion_type = (File.extname(font_file).downcase.eql? ".ttf")? ".eot" : ".ttf"
          other_basename = font_file.split(".")[0] + conversion_type
          other_file = "./#{@cwd}#{other_basename}"
          file = "./#{@cwd}#{font_file}"
          
          # TODO edit ttf2eot so that it's actually installed in the system
          if !File.exists?(other_file)
            puts "===== #{conversion_type.upcase} format not found for #{font_file}.  Attempting to convert... ====="

            # TODO fix incredibly bad hack
            curr_dir = Dir.getwd + "/"
            ttf2eot_dir = "/usr/lib/ruby/gems/1.8/gems/jitai-0.3.0/lib/ttf2eot/"
            %x{cd #{ttf2eot_dir} && ./ttf2eot < #{curr_dir + @cwd + font_file} > #{curr_dir + @cwd + font_file.split(".")[0] + conversion_type} && cd #{curr_dir}}
          end
          
          # Rename files, account for conventions.                                                                                                                   
          %x{mv #{other_file} #{other_file.downcase}} if !(File.exists?(other_file.downcase))
          %x{mv #{file} #{file.downcase}} if !(File.exists?(file.downcase))
          
          font = Jitai::Font.new(font_file)
          font.to_css
        end
      end
    end
  end

  class Font
    attr_accessor :name, :path

    def initialize(path)
      @name = path.downcase.split(".")[0]
      @path = path
    end

    def to_css
      # TODO make configurable for sinatra apps, etc
      moz = "@font-face {font-family:'#{@name}'; src:url('/fonts/#{name}.ttf');}"
      ie = "@font-face {font-family:'#{@name}'; src:url('/fonts/#{name}.eot');}"
      manager = Jitai::FontManager.new
      find_font(manager.moz_path, moz)
      find_font(manager.ie_path, ie)
    end

    def find_font(file, search_font)
      File.open(file, "w") if !File.exists?(file) # touch file

      in_file = false
      File.open(file) do |font|
        test = font.gets
        if !test.nil?
          return (in_file = true) if search_font.eql? test.strip
        end
      end

      unless in_file
        File.open(file, "a") do |f|
          f.puts search_font
          puts search_font
          puts "Was added to #{file}"
        end
      end
    end
  end
end