app.rb

require "sinatra/base"
require "erubis"

module Brug

  class Application < Sinatra::Base

    set :public, File.expand_path('../public', __FILE__)
    set :views, File.expand_path('../views', __FILE__)

    set :environment, "production"

    enable :sessions

    # ToDo: well, this is not pretty
    before do
      if params[:lang]
        session[:lang] = params[:lang]
      end
      unless session[:lang]
        accept = ["cs", "en"]
        lang = env["HTTP_ACCEPT_LANGUAGE"]
        lang = "cs" unless lang
        lang.split(",").each do |l|
          if l.include?(";")
            l = l.split(";")[0]
          end
          if accept.include?(l)
            session[:lang] = l
            break
          else
            accept.each do |a|
              if l == a or l.match(/^#{a}-/)
                session[:lang] = a
                break
              end
            end
            break if session[:lang]
          end
        end
      end
    end

    get '/' do
      @menu = "about"
      erubis "about.#{session[:lang]}".to_sym, :layout => "layout.#{session[:lang]}".to_sym
    end

    get '/activities' do
      @menu = "activities"
      erubis "activities.#{session[:lang]}".to_sym, :layout => "layout.#{session[:lang]}".to_sym
    end

    get '/projects' do
      @menu = "projects"
      erubis "projects.#{session[:lang]}".to_sym, :layout => "layout.#{session[:lang]}".to_sym
    end

    get '/members' do
      @menu = "members"
      erubis "members.#{session[:lang]}".to_sym, :layout => "layout.#{session[:lang]}".to_sym
    end

    get '/blog' do
      @menu = "blog"
      erubis "blog.#{session[:lang]}".to_sym, :layout => "layout.#{session[:lang]}".to_sym
    end
    
  end

end