namespace :doc do
  desc "Generate documentation for the application. Set custom template with TEMPLATE=/path/to/rdoc/template.rb or title with TITLE=\"Custom Title\""
  Rake::RDocTask.new("app") { |rdoc|
    rdoc.rdoc_dir = 'doc/app'
    rdoc.template = ENV['template'] if ENV['template']
    rdoc.title    = ENV['title'] || "Rails Application Documentation"
    rdoc.options << '--line-numbers' << '--inline-source'
    rdoc.options << '--charset' << 'utf-8'
    rdoc.rdoc_files.include('doc/README_FOR_APP')
    rdoc.rdoc_files.include('app/**/*.rb')
    rdoc.rdoc_files.include('lib/**/*.rb')
  }

  desc "Generate documentation for the Rails framework"
  Rake::RDocTask.new("rails") { |rdoc|
    rdoc.rdoc_dir = 'doc/api'
    rdoc.template = "#{ENV['template']}.rb" if ENV['template']
    rdoc.title    = "Rails Framework Documentation"
    rdoc.options << '--line-numbers' << '--inline-source'
    rdoc.rdoc_files.include('README')
    rdoc.rdoc_files.include('vendor/rails/railties/CHANGELOG')
    rdoc.rdoc_files.include('vendor/rails/railties/MIT-LICENSE')
    rdoc.rdoc_files.include('vendor/rails/railties/README')
    rdoc.rdoc_files.include('vendor/rails/railties/lib/{*.rb,commands/*.rb,rails_generator/*.rb}')
    rdoc.rdoc_files.include('vendor/rails/activerecord/README')
    rdoc.rdoc_files.include('vendor/rails/activerecord/CHANGELOG')
    rdoc.rdoc_files.include('vendor/rails/activerecord/lib/active_record/**/*.rb')
    rdoc.rdoc_files.exclude('vendor/rails/activerecord/lib/active_record/vendor/*')
    rdoc.rdoc_files.include('vendor/rails/activeresource/README')
    rdoc.rdoc_files.include('vendor/rails/activeresource/CHANGELOG')
    rdoc.rdoc_files.include('vendor/rails/activeresource/lib/active_resource.rb')
    rdoc.rdoc_files.include('vendor/rails/activeresource/lib/active_resource/*')
    rdoc.rdoc_files.include('vendor/rails/actionpack/README')
    rdoc.rdoc_files.include('vendor/rails/actionpack/CHANGELOG')
    rdoc.rdoc_files.include('vendor/rails/actionpack/lib/action_controller/**/*.rb')
    rdoc.rdoc_files.include('vendor/rails/actionpack/lib/action_view/**/*.rb')
    rdoc.rdoc_files.include('vendor/rails/actionmailer/README')
    rdoc.rdoc_files.include('vendor/rails/actionmailer/CHANGELOG')
    rdoc.rdoc_files.include('vendor/rails/actionmailer/lib/action_mailer/base.rb')
    rdoc.rdoc_files.include('vendor/rails/activesupport/README')
    rdoc.rdoc_files.include('vendor/rails/activesupport/CHANGELOG')
    rdoc.rdoc_files.include('vendor/rails/activesupport/lib/active_support/**/*.rb')
  }

  plugins = FileList['vendor/plugins/**'].collect { |plugin| File.basename(plugin) }

  desc "Generate documentation for all installed plugins"
  task :plugins => plugins.collect { |plugin| "doc:plugins:#{plugin}" }

  desc "Remove plugin documentation"
  task :clobber_plugins do 
    rm_rf 'doc/plugins' rescue nil
  end

  desc "Generate Rails guides"
  task :guides do
    source = File.join(RAILTIES_PATH, "doc/guides")
    destination = File.join(RAILS_ROOT, "doc/guides")
    FileUtils.rm_r(destination) if File.directory?(destination)
    FileUtils.mkdir(destination)

    FileUtils.cp_r File.join(source, 'html/.'), File.join(destination)
    # Copy images and css files to html directory. These dirs are in .gitigore and shouldn't be source controlled.
    FileUtils.cp_r File.join(source, 'source/images'), File.join(destination)
    FileUtils.cp_r File.join(source, 'source/stylesheets'), File.join(destination, 'stylesheets')
  end

  namespace :plugins do
    # Define doc tasks for each plugin
    plugins.each do |plugin|
      desc "Generate documentation for the #{plugin} plugin"
      task(plugin => :environment) do
        plugin_base   = "vendor/plugins/#{plugin}"
        options       = []
        files         = Rake::FileList.new
        options << "-o doc/plugins/#{plugin}"
        options << "--title '#{plugin.titlecase} Plugin Documentation'"
        options << '--line-numbers' << '--inline-source'
        options << '--charset' << 'utf-8'
        options << '-T html'

        files.include("#{plugin_base}/lib/**/*.rb")
        if File.exist?("#{plugin_base}/README")
          files.include("#{plugin_base}/README")    
          options << "--main '#{plugin_base}/README'"
        end
        files.include("#{plugin_base}/CHANGELOG") if File.exist?("#{plugin_base}/CHANGELOG")

        options << files.to_s

        sh %(rdoc #{options * ' '})
      end
    end
  end
end
