module Booky::Textile
  class Source
    include Booky::Textile::Precompiler
    
    EXTENSIONS = {
      '.txt'    => 'text',
      '.rb'     => 'ruby',
      '.java'   => 'java',
      '.html'   => 'html',
      '.htm'    => 'html',
      '.js'     => 'javascript',
      '.coffee' => 'javascript',
      '.css'    => 'css',
      '.c'      => 'c',
      '.cpp'    => 'cpp',
      '.pl'     => 'perl',
      '.py'     => 'python',
      '.php'    => 'php',
      '.sql'    => 'sql'
    }
    
    # Does the current line need to be precompiled?
    def matches line
      return false unless line.match /^source/
      line.gsub(/^source/, "").strip
    end
    
    # Replace the path with the contents of the file
    def compile_to options
      begin
        options = parse(options)
        if @lang = language("#{File.dirname(Booky.source)}/#{options[:file]}")
          @output = "bc{name: #{options[:name]};language: #{@lang}}.. "
        else
          @output = "bc{name: #{options[:name]};}.. "
        end
        @output += File.open("#{File.dirname(Booky.source)}/#{options[:file]}", 'rb:UTF-8') { |f| f.read }
        @output += "\n\np. \n"
        @output
      rescue
        raise "Couldn't find source file: #{File.dirname(Booky.source)}/#{options[:name]}".red
      end
    end
    
    # Parses the options for a name and the file
    def parse options
      if name_match = options.match(/{(.*?)}/)
        options = options.gsub(name_match[0], "")
        name = name_match[1]
      end
      
      file = options[1..-1].strip
      #name = File.basename("#{File.dirname(Booky.source)}/#{file}") unless name
      
      { :name => name, :file => file }
    end
    
    # Returns the language from the file extension
    def language file
      EXTENSIONS[File.extname(file)] rescue nil
    end
    
  end  
end