# Methods added to this helper will be available to all templates in the
# application.
module ApplicationHelper

  include PermissionName

  include LightboxHelper

  include ThickboxHelper

  include BoxesHelper

  include FormsHelper

  include AssetsHelper

  include BlockHelper

  include DatesHelper

  include FolderHelper

  include ProfileEditorHelper

  include DisplayHelper

  include AccountHelper

  def locale
    FastGettext.locale
  end

  def load_web2_conf
    if File.exists?( RAILS_ROOT + '/config/web2.0.yml')
      YAML.load_file( RAILS_ROOT + '/config/web2.0.yml' )
    else
      {}
    end
  end
  def web2_conf
    @web_conf ||= load_web2_conf
  end

  # Displays context help. You can pass the content of the help message as the
  # first parameter or using template code inside a block passed to this
  # method. *Note*: the block is ignored if <tt>content</tt> is not
  # <tt>nil</tt>
  #
  # The method returns the text generated, so you can also use it inside a
  #  <%= ... %>
  #
  # Follow some examples ...
  #
  # Passing the text as argument:
  #
  #  <% help 'This your help message' %>
  #
  # Using a block:
  #
  #  <% help do %>
  #    This is the help message to be displayed. It can contain any HTML you
  #    want: <strong>bold</strong>, <em>italic</em>. It can also contain calls
  #    to any Rails helper, like <%= link_to 'home', :controller => 'home' %>.
  #  <% end %>
  #
  # You can also pass an optional argument to force the use of textile in your
  # help message:
  #
  #  <% help nil, :textile do %>
  #    You can also use *textile*!
  #  <% end %>
  #
  # or, using the return of the method:
  #
  #  <%= help 'this is your help message' %>
  #
  # Formally, the <tt>type</tt> argument can be <tt>:html</tt> (i.e. no
  # conversion of the input) or <tt>:textile</tt> (converts the message, in
  # textile, into HTML). It defaults to <tt>:html</tt>.
  #
  # TODO: implement correcly the 'Help' button click
  def help(content = nil, link_name = nil, options = {}, &block)

    link_name ||= _('Help')

    @help_message_id ||= 1
    help_id = "help_message_#{@help_message_id}"

    if content.nil?
      return '' if block.nil?
      content = capture(&block)
    end

    if options[:type] == :textile
      content = RedCloth.new(content).to_html
    end

    options[:class] = '' if ! options[:class]
    options[:class] += ' button icon-help' # with-text

    # TODO: implement this button, and add style='display: none' to the help
    # message DIV
    button = link_to_function(content_tag('span', link_name), "Element.show('#{help_id}')", options )
    close_button = content_tag("div", link_to_function(_("Close"), "Element.hide('#{help_id}')", :class => 'close_help_button'))

    text = content_tag('div', button + content_tag('div', content_tag('div', content) + close_button, :class => 'help_message', :id => help_id, :style => 'display: none;'), :class => 'help_box')

    unless block.nil?
      concat(text, block.binding)
    end

    text
  end

  # alias for <tt>help(content, :textile)</tt>. You can pass a block in the
  # same way you would do if you called <tt>help</tt> directly.
  def help_textile(content = nil, link_name = nil, options = {}, &block)
    options[:type] = :textile
    help(content, link_name, options, &block)
  end

  # TODO: do something more useful here
  # TODO: test this helper
  # TODO: add an icon?
  # TODO: the command rake test:rcov didn't works because of this method. See what it's the problem
  def environment_identification
    content_tag('div', @environment.name, :id => 'environment_identification')
  end

  def link_to_cms(text, profile = nil, options = {})
    profile ||= current_user.login
    link_to text, myprofile_path(:controller => 'cms', :profile => profile), options
  end

  def link_to_profile(text, profile = nil, options = {})
    profile ||= current_user.login
    link_to text, profile_path(:profile => profile) , options
  end

  def link_to_homepage(text, profile = nil, options = {})
    p = if profile
          Profile[profile]
        else
          user
        end

    link_to text, p.url, options
  end

  def link_if_permitted(link, permission = nil, target = nil)
    if permission.nil? || current_user.person.has_permission?(permission, target)
      link
    else
      nil
    end
  end

  def footer
    # FIXME: add some information from the environment
    [
      content_tag('div', _('This is %s, version %s') % [ link_to(Noosfero::PROJECT, 'http://www.noosfero.com.br/'), Noosfero::VERSION]),
    ].join("\n")
  end

  # returns the current profile beign viewed.
  #
  # Make sure that you use this helper method only in contexts where there
  # should be a current profile (i.e. while viewing some profile's pages, or the
  # profile info, etc), because if there is no profile an exception is thrown.
  def profile
    @controller.send(:profile)
  end

  def category_color
    if @category.nil?
      ""
    else
      @category.top_ancestor.display_color
    end
  end

  def text_editor(object, method, filter_type_method = nil, options = {})
    text_area(object, method, { :rows => 10, :cols => 64 }.merge(options))
  end

  def hide(id)
    "Element.hide(#{id.inspect});"
  end

  def show(id)
    "Element.show(#{id.inspect});"
  end

  def toggle_panel(hide_label, show_label, id)
    hide_button_id = id + "-hide"
    show_button_id = id + "-show"

    result = ""
    result << button_to_function('open', show_label, show(id) + show(hide_button_id) + hide(show_button_id), :id => show_button_id, :class => 'show-button with-text', :style => 'display: none;' )

    result < " "
    result << button_to_function('close', hide_label, hide(id) + hide(hide_button_id) + show(show_button_id), :id => hide_button_id, :class => 'hide-button with-text')

    result
  end

  def button(type, label, url, html_options = {})
    the_class = 'with-text'
    if html_options.has_key?(:class)
      the_class << ' ' << html_options[:class]
    end
    button_without_text type, label, url, html_options.merge(:class => the_class)
  end

  def button_without_text(type, label, url, html_options = {})
    the_class = "button icon-#{type}"
    if html_options.has_key?(:class)
      the_class << ' ' << html_options[:class]
    end
    the_title = html_options[:title] || label
    link_to('&nbsp;'+content_tag('span', label), url, html_options.merge(:class => the_class, :title => the_title))
  end

  def button_to_function(type, label, js_code, html_options = {}, &block)
    html_options[:class] = "button with-text" unless html_options[:class]
    html_options[:class] << " icon-#{type}"
    link_to_function(label, js_code, html_options, &block)
  end

  def button_to_function_without_text(type, label, js_code, html_options = {}, &block)
    html_options[:class] = "" unless html_options[:class]
    html_options[:class] << " button icon-#{type}"
    link_to_function(content_tag('span', label), js_code, html_options, &block)
  end

  def button_to_remote(type, label, options, html_options = {})
    html_options[:class] = "button with-text" unless html_options[:class]
    html_options[:class] << " icon-#{type}"
    link_to_remote(label, options, html_options)
  end

  def button_to_remote_without_text(type, label, options, html_options = {})
    html_options[:class] = "" unless html_options[:class]
    html_options[:class] << " button icon-#{type}"
    link_to_remote(content_tag('span', label), options, html_options.merge(:title => label))
  end

  def icon(icon_name, html_options = {})
    the_class = "button #{icon_name}"
    if html_options.has_key?(:class)
      the_class << ' ' << html_options[:class]
    end
    content_tag('div', '', html_options.merge(:class => the_class))
  end

  def icon_button(type, text, url, html_options = {})
    the_class = "button icon-button icon-#{type}"
    if html_options.has_key?(:class)
      the_class << ' ' << html_options[:class]
    end

    link_to(content_tag('span', text), url, html_options.merge(:class => the_class, :title => text))
  end

  def button_bar(options = {}, &block)
    concat(content_tag('div', capture(&block) + tag('br', :style => 'clear: left;'), { :class => 'button-bar' }.merge(options)), block.binding)
  end

  def partial_for_class(klass)
    if klass.nil?
      raise ArgumentError, 'No partial for object. Is there a partial for any class in the inheritance hierarchy?'
    end

    name = klass.name.underscore
    if File.exists?(File.join(RAILS_ROOT, 'app', 'views', params[:controller], "_#{name}.rhtml"))
      name
    else
      partial_for_class(klass.superclass)
    end
  end

  def user
    @controller.send(:user)
  end

  # DEPRECATED. Do not use this.
  def stylesheet_import(*sources)
    options = sources.last.is_a?(Hash) ? sources.pop : { }
    themed_source = options.delete(:themed_source)
    content_tag(
      'style',
      "\n" +
      sources.flatten.map do |source|
        filename = filename_for_stylesheet(source.to_s, themed_source)
        if File.exists?(File.join(RAILS_ROOT, 'public', filename))
          "@import url(#{filename});\n"
        else
          "/* Not included: url(#{filename}) */\n"
        end
      end.join(),
      { "type" => "text/css" }.merge(options)
    )
  end

  # DEPRECATED. Do not use this.
  def filename_for_stylesheet(name, in_theme)
    result = ''
    if in_theme
      result << theme_path
    end
    name += '.css'  if ( name[-4..-1] != '.css' )
    if ( name[0..0] == '/' )
      result << name
    else
      result << '/stylesheets/' << name
    end
  end

  def theme_path
    if session[:theme]
      '/user_themes/' + current_theme
    else
      '/designs/themes/' + current_theme
    end
  end

  def theme_stylesheet_path
    theme_path + '/style.css'
  end

  def current_theme
    @current_theme ||=
      begin
        if (session[:theme])
          session[:theme]
        else
          # utility for developers: set the theme to 'random' in development mode and
          # you will get a different theme every request. This is interesting for
          # testing
          if ENV['RAILS_ENV'] == 'development' && environment.theme == 'random'
            @random_theme ||= Dir.glob('public/designs/themes/*').map { |f| File.basename(f) }.rand
            @random_theme
          elsif ENV['RAILS_ENV'] == 'development' && params[:theme]
            params[:theme]
          else
            if profile && !profile.theme.nil?
              profile.theme
            elsif environment
              environment.theme
            else
              if logger
                logger.warn("No environment found. This is weird.")
                logger.warn("Request environment: %s" % request.env.inspect)
                logger.warn("Request parameters: %s" % params.inspect)
              end

              # could not determine the theme, so return the default one
              'default'
            end
          end
        end
      end
  end

  def theme_include(template)
    ['.rhtml', '.html.erb'].each do |ext|
      file = (RAILS_ROOT + '/public' + theme_path + '/' + template  + ext)
      if File.exists?(file)
        return render :file => file, :use_full_path => false
      end
    end
    nil
  end

  def theme_favicon
    return '/designs/themes/' + current_theme + '/favicon.ico' if profile.nil? || profile.theme.nil?
    if File.exists?(File.join(RAILS_ROOT, 'public', theme_path, 'favicon.ico'))
      '/designs/themes/' + profile.theme + '/favicon.ico'
    else
      favicon = profile.articles.find_by_path('favicon.ico')
      if favicon
        favicon.public_filename
      else
        '/designs/themes/' + environment.theme + '/favicon.ico'
      end
    end
  end

  def theme_site_title
    theme_include('site_title')
  end

  def theme_header
    theme_include('header')
  end

  def theme_footer
    theme_include('footer')
  end

  def theme_extra_navigation
    theme_include('navigation')
  end

  def is_testing_theme
    !@controller.session[:theme].nil?
  end

  def theme_owner
    Theme.find(current_theme).owner.identifier
  end

  # generates a image tag for the profile.
  #
  # If the profile has no image set yet, then a default image is used.
  def profile_image(profile, size=:portrait, opt={})
    return '' if profile.nil?
    opt[:alt]   ||= profile.name()
    opt[:title] ||= ''
    opt[:class] ||= ''
    opt[:class] += ( profile.class == Person ? ' photo' : ' logo' )
    image_tag(profile_icon(profile, size), opt )
  end

  def profile_icon( profile, size=:portrait, return_mimetype=false )
    filename, mimetype = '', 'image/png'
    if profile.image
      filename = profile.image.public_filename( size )
      mimetype = profile.image.content_type
    else
      icon =
        if profile.organization?
          if profile.kind_of?(Community)
            '/images/icons-app/community-'+ size.to_s() +'.png'
          else
            '/images/icons-app/enterprise-'+ size.to_s() +'.png'
          end
        else
          '/images/icons-app/person-'+ size.to_s() +'.png'
        end
      filename = default_or_themed_icon(icon)
    end
    return_mimetype ? [filename, mimetype] : filename
  end

  def default_or_themed_icon(icon)
    if File.exists?(File.join(Rails.root, 'public', theme_path, icon))
      theme_path + icon
    else
      icon
    end
  end

  def profile_sex_icon( profile )
    return '' unless profile.is_a?(Person)
    return '' unless !environment.enabled?('disable_gender_icon')
    sex = ( profile.sex ? profile.sex.to_s() : 'undef' )
    title = ( sex == 'undef' ? _('non registered gender') : ( sex == 'male' ? _('Male') : _('Female') ) )
    sex = content_tag 'span',
                      content_tag( 'span', sex ),
                      :class => 'sex-'+sex,
                      :title => title
    sex
  end

  def profile_cat_icons( profile )
    if profile.class == Enterprise
      icons =
        profile.product_categories.map{ |c| c.size > 1 ? c[1] : nil }.
          compact.uniq.map{ |c|
            cat_name = c.gsub( /[-_\s,.;'"]+/, '_' )
            cat_icon = "/images/icons-cat/#{cat_name}.png"
            if ! File.exists? RAILS_ROOT.to_s() + '/public/' + cat_icon
              cat_icon = '/images/icons-cat/undefined.png'
            end
            content_tag 'span',
                        content_tag( 'span', c ),
                        :title => c,
                        :class => 'product-cat-icon cat_icon_' + cat_name,
                        :style => "background-image:url(#{cat_icon})"
          }.join "\n"
      content_tag 'div',
                  content_tag( 'span', _('Principal Product Categories'), :class => 'header' ) +"\n"+ icons,
                  :class => 'product-category-icons'
    else
      ''
    end
  end

  # displays a link to add the profile with its image (as generated by
  # #profile_image) or only its name below.
  def profile_add_link( profile, image=false, size=:portrait, tag='li')
    the_class = profile.members.include?(user) ? 'profile_member' : ''
    name = h(profile.short_name)
    if image
      display = content_tag( 'span', profile_image( profile, size ), :class => 'profile-image' ) +
                content_tag( 'span', name, :class => 'org' ) +
                profile_cat_icons( profile )
      the_class << ' vcard'
    else
      display = content_tag( 'span', name, :class => 'org' )
    end
    content_tag tag,
        link_to_remote( display,
	    :update => 'search-results-and-pages',
            :url => {:controller => 'account', :action => 'profile_details', :profile => profile.identifier},
            :onclick => 'document.location.href = this.href', # work-arround for ie.
            :class => 'profile_link url',
            :help => _('Click on this icon to add <b>%s</b> to your network') % profile.name,
            :title => profile.name ),
        :class => the_class
  end

  def links_for_balloon(profile)
    if environment.enabled?(:show_balloon_with_profile_links_when_clicked)
      if profile.kind_of?(Person)
        [
          {_('Wall') => {:href => url_for(profile.public_profile_url)}},
          {_('Friends') => {:href => url_for(:controller => :profile, :action => :friends, :profile => profile.identifier)}},
          {_('Communities') => {:href => url_for(:controller => :profile, :action => :communities, :profile => profile.identifier)}},
          {_('Send an e-mail') => {:href => url_for(:profile => profile.identifier, :controller => 'contact', :action => 'new'), :class => 'send-an-email', :style => 'display: none'}},
          {_('Add') => {:href => url_for(profile.add_url), :class => 'add-friend', :style => 'display: none'}}
        ]
      elsif profile.kind_of?(Community)
        [
          {_('Wall') => {:href => url_for(profile.public_profile_url)}},
          {_('Members') => {:href => url_for(:controller => :profile, :action => :members, :profile => profile.identifier)}},
          {_('Agenda') => {:href => url_for(:controller => :profile, :action => :events, :profile => profile.identifier)}},
          {_('Join') => {:href => url_for(profile.join_url), :class => 'join-community', :style => 'display: none'}},
          {_('Leave') => {:href => url_for(profile.leave_url), :class => 'leave-community', :style => 'display:  none'}},
          {_('Send an e-mail') => {:href => url_for(:profile => profile.identifier, :controller => 'contact', :action => 'new'), :class => 'send-an-email', :style => 'display: none'}}
        ]
      elsif profile.kind_of?(Enterprise)
        [
          {_('Products') => {:href => catalog_path(profile.identifier)}},
          {_('Members') => {:href => url_for(:controller => :profile, :action => :members, :profile => profile.identifier)}},
          {_('Agenda') => {:href => url_for(:controller => :profile, :action => :events, :profile => profile.identifier)}},
          {_('Send an e-mail') => {:href => url_for(:profile => profile.identifier, :controller => 'contact', :action => 'new'), :class => 'send-an-email', :style => 'display: none'}},
        ]
      else
        []
      end
    end
  end

  # displays a link to the profile homepage with its image (as generated by
  # #profile_image) and its name below it.
  def profile_image_link( profile, size=:portrait, tag='li', extra_info = nil )
    name = profile.short_name
    if profile.person?
      city = content_tag 'span', content_tag( 'span', profile.city, :class => 'locality' ), :class => 'adr'
      url = url_for(profile.check_friendship_url)
      trigger_class = 'person-trigger'
    else
      city = ''
      url = url_for(profile.check_membership_url)
      if profile.community?
        trigger_class = 'community-trigger'
      elsif profile.enterprise?
        trigger_class = 'enterprise-trigger'
      end
    end
    extra_info = extra_info.nil? ? '' : content_tag( 'span', extra_info, :class => 'extra_info' )
    links = links_for_balloon(profile)
    content_tag tag,
        (environment.enabled?(:show_balloon_with_profile_links_when_clicked) ? link_to( content_tag( 'span', _('Profile links')), '#', :onclick => "toggleSubmenu(this, '#{profile.short_name}', #{links.to_json}); return false", :class => "menu-submenu-trigger #{trigger_class}", :url => url) : "") +
        link_to(
            content_tag( 'span', profile_image( profile, size ), :class => 'profile-image' ) +
            content_tag( 'span', h(name), :class => ( profile.class == Person ? 'fn' : 'org' ) ) +
            city + extra_info + profile_sex_icon( profile ) + profile_cat_icons( profile ),
            profile.url,
            :onclick => 'document.location.href = this.href', # work-arround for ie.
            :class => 'profile_link url',
            :help => _('Click on this icon to go to the <b>%s</b>\'s home page') % profile.name,
            :title => profile.name ),
        :class => 'vcard'
  end

  # displays a link to the community homepage with its image (as generated by
  # #profile_image) and its name and number of members beside it.
  def community_image_link( profile, size=:portrait, tag='li' )
    name = h(profile.name)
    links = links_for_balloon(profile)
    url = url_for(profile.check_membership_url)
    content_tag tag,
        (environment.enabled?(:show_balloon_with_profile_links_when_clicked) ? link_to( content_tag( 'span', _('Profile links')), '#', :onclick => "toggleSubmenu(this, '#{profile.short_name}', #{links.to_json}); return false", :class => 'menu-submenu-trigger community-trigger', :url => url) : "") +
        link_to(
            content_tag( 'span', profile_image( profile, size ), :class => 'profile-image' ) +
            content_tag( 'span', name, :class => 'org' ) +
            content_tag( 'span', n_('1 member', '%s members', profile.members.count) % profile.members.count, :class => 'community-member-count' ),
            profile.url,
            :onclick => 'document.location.href = this.href', # work-arround for ie.
            :class => 'profile_link url',
            :help => _('Click on this icon to go to the <b>%s</b>\'s home page') % profile.name,
            :title => profile.name ) +
            '<br class="may-clear"/>',
        :class => 'vcard'
  end

  def gravatar_url_for(email, options = {})
    # Ta dando erro de roteamento
    url_for( { :gravatar_id => Digest::MD5.hexdigest(email),
               :host => 'www.gravatar.com',
               :protocol => 'http://',
               :only_path => false,
               :controller => 'avatar.php',
               :d => web2_conf['gravatar'] ? web2_conf['gravatar']['default'] : nil
             }.merge(options) )
  end

  def str_gravatar_url_for(email, options = {})
    default = web2_conf['gravatar'] ? web2_conf['gravatar']['default'] : nil
    url = 'http://www.gravatar.com/avatar.php?gravatar_id=' +
           Digest::MD5.hexdigest(email)
    {
      :only_path => false,
      :d => default
    }.merge(options).each { |k,v|
      url += ( '&%s=%s' % [ k,v ] )
    }
    url
  end

  attr_reader :environment
  def select_categories(object_name, title=nil, title_size=4)
    return nil if environment.enabled?(:disable_categories)
    if title.nil?
      title = _('Categories')
    end

    object = instance_variable_get("@#{object_name}")

    result = content_tag 'h'+title_size.to_s(), title
    result << javascript_tag( 'function open_close_cat( link ) {
      var div = link.parentNode.getElementsByTagName("div")[0];
      var end = function(){
        if ( div.style.display == "none" ) {
          this.link.className="button icon-button icon-down"
        } else {
          this.link.className="button icon-button icon-up-red"
        }
      }
      Effect.toggle( div, "slide", { link:link, div:div, afterFinish:end } )
    }')
    environment.top_level_categories.select{|i| !i.children.empty?}.each do |toplevel|
      next unless object.accept_category?(toplevel)
      # FIXME
      ([toplevel] + toplevel.children_for_menu).each do |cat|
        if cat.top_level?
          result << '<div class="categorie_box">'
          result << icon_button( :down, _('open'), '#', :onclick => 'open_close_cat(this); return false' )
          result << content_tag('h5', toplevel.name)
          result << '<div style="display:none"><ul class="categories">'
        else
          checkbox_id = "#{object_name}_#{cat.full_name.downcase.gsub(/\s+|\//, '_')}"
          result << content_tag('li', labelled_check_box(
                      cat.full_name_without_leading(1, " &rarr; "),
                      "#{object_name}[category_ids][]", cat.id,
                      object.category_ids.include?(cat.id), :id => checkbox_id,
                      :onchange => 'this.parentNode.className=(this.checked?"cat_checked":"")' ),
                    :class => ( object.category_ids.include?(cat.id) ? 'cat_checked' : '' ) ) + "\n"
        end
      end
      result << '</ul></div></div>'
    end

    content_tag('div', result)
  end

  def select_folder(label, object, method, collection, html_options = {}, js_options = {})
    labelled_form_field(label, select(object, method, collection.map {|f| [ profile.identifier + '/' + f.full_name, f.id ] }, html_options.merge({:include_blank => "#{profile.identifier}"}), js_options))
  end

  def theme_option(opt = nil)
    conf = RAILS_ROOT.to_s() +
           '/public' + theme_path +
           '/theme.yml'
    if File.exists?(conf)
      opt ? YAML.load_file(conf)[opt.to_s()] : YAML.load_file(conf)
    else
      nil
    end
  end

  def theme_opt_menu_search
    opt = theme_option( :menu_search )
    if    opt == 'none'
      ""
    elsif opt == 'simple_search'
      s = _('Search...')
      "<form action=\"#{url_for(:controller => 'search', :action => 'index')}\" id=\"simple-search\" class=\"focus-out\""+
      ' help="'+_('This is a search box. Click, write your query, and press enter to find')+'"'+
      ' title="'+_('Click, write and press enter to find')+'">'+
      '<input name="query" value="'+s+'"'+
      ' onfocus="if(this.value==\''+s+'\'){this.value=\'\'} this.form.className=\'focus-in\'"'+
      ' onblur="if(/^\s*$/.test(this.value)){this.value=\''+s+'\'} this.form.className=\'focus-out\'">'+
      '</form>'
    else #opt == 'lightbox_link' is default
      lightbox_link_to '<span class="icon-menu-search"></span>'+ _('Search'), {
                       :controller => 'search',
                       :action => 'popup',
                       :category_path => (@category ? @category.explode_path : []) },
                       :id => 'open_search'
    end
  end

  def theme_javascript
    option = theme_option(:js)
    return if option.nil?
    html = []
    option.each do |file|
      file = theme_path +
             '/javascript/'+ file +'.js'
      if File.exists? RAILS_ROOT.to_s() +'/public'+ file
        html << javascript_src_tag( file, {} )
      else
        html << '<!-- Not included: '+ file +' -->'
      end
    end
    html.join "\n"
  end

  def theme_javascript_ng
    script = File.join(theme_path, 'theme.js')
    if File.exists?(File.join(Rails.root, 'public', script))
      javascript_include_tag script
    else
      nil
    end
  end

  def file_field_or_thumbnail(label, image, i)
    display_form_field label, (
      render :partial => (image && image.valid? ? 'shared/show_thumbnail' : 'shared/change_image'),
      :locals => { :i => i, :image => image }
      )
  end

  def rolename_for(profile, resource)
    role = profile.role_assignments.find_by_resource_id(resource.id).role
    content_tag('span', role.name, :style => "color: #{role_color(role, resource.environment.id)}")
  end

  def role_color(role, env_id)
    case role
      when Profile::Roles.admin(env_id)
        'blue'
      when Profile::Roles.member(env_id)
        'green'
      when Profile::Roles.moderator(env_id)
        'gray'
      else
        'black'
    end
  end

  # Should be on the forms_helper file but when its there the translation of labels doesn't work
  class NoosferoFormBuilder < ActionView::Helpers::FormBuilder
  extend ActionView::Helpers::TagHelper

    def self.output_field(text, field_html, field_id = nil)
      # try to guess an id if none given
      if field_id.nil?
        field_html =~ /id=['"]([^'"]*)['"]/
        field_id = $1
      end
      field_html =~ /type=['"]([^'"]*)['"]/
      field_html =~ /<(\w*)/ unless $1
      field_type = $1
      field_class = 'formfield type-' + field_type if field_type

      label_html = content_tag('label', gettext(text), :class => 'formlabel', :for => field_id)
      control_html = content_tag('div', field_html, :class => field_class )

      content_tag('div', label_html + control_html, :class => 'formfieldline' )
    end

    (field_helpers - %w(hidden_field)).each do |selector|
      src = <<-END_SRC
        def #{selector}(field, *args, &proc)
          text = object.class.human_attribute_name(field.to_s)
          NoosferoFormBuilder::output_field(text, super)
        end
      END_SRC
      class_eval src, __FILE__, __LINE__
    end

    # Create a formatable radio collection
    # Tha values parameter is a array of [value, label] arrays like this:
    # [ ['en',_('English')], ['pt',_('Portuguese')], ['es',_('Spanish')] ]
    # The option :size will set how many radios will be showed in each line
    # Example: use :size => 3 as option if you want 3 radios by line
    def radio_group( object_name, method, values, options = {} )
      line_size = options[:size] || 0
      line_item = 0
      html = "\n"
      values.each { |val, h_val|
        id = object_name.to_s() +'_'+ method.to_s() +'_'+ val.to_s()
        # Não está apresentando o sexo selecionado ao revisitar
        # http://localhost:3000/myprofile/manuel/profile_editor/edit  :-(
        html += self.class.content_tag( 'span',
            @template.radio_button( object_name, method, val,
                                    :id => id, :object => @object ) +
            self.class.content_tag( 'label', h_val, :for => id ),
            :class => 'lineitem' + (line_item+=1).to_s() ) +"\n"
        if line_item == line_size
          line_item = 0
          html += "<br />\n"
        end
      }
      html += "<br />\n"  if line_size == 0 || ( values.size % line_size ) > 0
      column = object.class.columns_hash[method.to_s]
      text =
        ( column ?
          column.human_name :
          _(method.to_s.humanize)
        )
      label_html = self.class.content_tag 'label', text,
                                        :class => 'formlabel'
      control_html = self.class.content_tag 'div', html,
                                        :class => 'formfield type-radio '+
                                        'fieldgroup linesize'+line_size.to_s()

      self.class.content_tag 'div', label_html + control_html,
                                          :class => 'formfieldline'
    end

  end

  # create a form field structure (as if it were generated with
  # labelled_form_for), but with a customized control and label.
  #
  # If +field_id+ is not given, the underlying implementation will try to guess
  # it from +field_html+ using a regular expression. In this case, make sure
  # that the first ocurrance of id=['"]([^'"]*)['"] in +field_html+ if the one
  # you want (i.e. the correct id for the control )
  def labelled_form_field(label, field_html, field_id = nil)
    NoosferoFormBuilder::output_field(label, field_html, field_id)
  end

  alias_method :display_form_field, :labelled_form_field

  def labelled_fields_for(name, object = nil, options = {}, &proc)
    object ||= instance_variable_get("@#{name}")
    fields_for(name, object, { :builder => NoosferoFormBuilder }.merge(options), &proc)
  end

  def labelled_form_for(name, object = nil, options = {}, &proc)
    object ||= instance_variable_get("@#{name}")
    form_for(name, object, { :builder => NoosferoFormBuilder }.merge(options), &proc)
  end

  def optional_field(profile, name, field_html = nil, only_required = false, &block)
    result = ""

    is_required = false
    if profile.required_fields.include?(name)
      is_required = true
    else
      return result if only_required
    end

    if block
      field_html ||= ''
      field_html += capture(&block)
    end

    if controller.action_name == 'signup' || controller.action_name == 'new_community' || (controller.controller_name == "enterprise_registration" && controller.action_name == 'index')
      if profile.signup_fields.include?(name)
        result = field_html
      end
    else
      if profile.active_fields.include?(name)
        result = field_html
      end
    end

    if is_required
      result = required(result)
    end

    if block
      concat(result, block.binding)
    end

    result
  end

  def search_page_title(title, options={})
    title = "<h1>" + title + "</h1>"
    title += "<h2 class='query'>" + _("Searched for '%s'") % options[:query] + "</h2>" if !options[:query].blank?
    title += "<h2 class='query'>" + _("In category %s") % options[:category] + "</h2>" if !options[:category].blank?
    title += "<h2 class='query'>" + _("within %d km from %s") % [options[:distance], options[:region]] + "</h2>" if !options[:distance].blank? && !options[:region].blank?
    title += "<h2 class='query'>" + _("%d results found") % options[:total_results] + "</h2>" if !options[:total_results].blank?
    title
  end

  def search_page_link_to_all(options={})
    if options[:category]
      title = "<div align='center'>" + _('In all categories') + "</div>"
      link_to title, :action => 'assets', :asset => options[:asset], :category_path => []
    end
  end

  def template_stylesheet_path
    if profile.nil?
      '/designs/templates/default/stylesheets/style.css'
    else
      "/designs/templates/#{profile.layout_template}/stylesheets/style.css"
    end
  end

  def login_url
    options = Noosfero.url_options.merge({ :controller => 'account', :action => 'login' })
    if environment.enable_ssl && (ENV['RAILS_ENV'] != 'development')
      options.merge!(:protocol => 'https://', :host => ssl_hostname)
    end
    url_for(options)
  end

  def ssl_hostname
    environment.default_hostname
  end

  def base_url
    environment.top_url(request.ssl?)
  end

  def helper_for_article(article)
    article_helper = ActionView::Base.new
    article_helper.extend ArticleHelper
    begin
      class_name = article.class.name + 'Helper'
      klass = class_name.constantize
      article_helper.extend klass
    rescue
    end
    article_helper
  end

  def label_for_new_article(article)
    article_helper = helper_for_article(!article.nil? && !article.parent.nil? ? article.parent : article)
    article_helper.cms_label_for_new_children
  end

  def label_for_edit_article(article)
    article_helper = helper_for_article(article)
    article_helper.cms_label_for_edit
  end

  def add_rss_feed_to_head(title, url)
    content_for :feeds do
      tag(:link, :rel => 'alternate', :type => 'application/rss+xml', :title => title, :href => url_for(url))
    end
  end

  def icon_theme_stylesheet_path
    icon_themes = []
    theme_icon_themes = theme_option(:icon_theme) || []
    for icon_theme in theme_icon_themes do
      theme_path = "/designs/icons/#{icon_theme}/style.css"
      if File.exists?(File.join(RAILS_ROOT, 'public', theme_path))
        icon_themes << theme_path
      end
    end
    icon_themes
  end

  def page_title
    (@page ? @page.title + ' - ' : '') +
    (profile ? profile.short_name + ' - ' : '') +
    (@topic ? @topic.title + ' - ' : '') +
    (@section ? @section.title + ' - ' : '') +
    (@toc ? _('Online Manual') + ' - ' : '') +
    (@controller.controller_name == 'chat' ? _('Chat') + ' - ' : '') +
    environment.name +
    (@category ? " - #{@category.full_name}" : '')
  end

  def noosfero_javascript
    render :file =>  'layouts/_javascript'
  end

  def noosfero_stylesheets
    [
      'application',
      'thickbox',
      'lightbox',
      'colorpicker',
      pngfix_stylesheet_path,
    ]
  end

  # DEPRECATED. Do not use this·
  def import_controller_stylesheets(options = {})
    stylesheet_import( "controller_"+ @controller.controller_name(), options )
  end

  def pngfix_stylesheet_path
    'iepngfix/iepngfix.css'
  end

  def noosfero_layout_features
    render :file => 'shared/noosfero_layout_features'
  end

  def link_to_email(email)
    javascript_tag('var array = ' + email.split('@').to_json + '; document.write("<a href=\'mailto:" + array.join("@") + "\'>" + array.join("@") +  "</a>")')
  end

  def stylesheet(*args)
    content_for(:head) { stylesheet_link_tag(*args) }
  end

  def article_to_html(article, options = {})
    options.merge!(:page => params[:npage])
    content = article.to_html(options)
    return self.instance_eval(&content) if content.kind_of?(Proc)
    content
  end

  def colorpicker_field(object_name, method, options = {})
    text_field(object_name, method, options.merge(:class => 'colorpicker_field'))
  end

  def colorpicker_field_tag(name, value = nil, options = {})
    text_field_tag(name, value, options.merge(:class => 'colorpicker_field'))
  end

  def ui_icon(icon_class, extra_class = '')
    "<span class='ui-icon #{icon_class} #{extra_class}' style='float:left; margin-right:7px;'></span>"
  end

  def ui_button(label, url, html_options = {})
    link_to(label, url, html_options.merge(:class => 'ui_button fg-button'))
  end

  def ui_button_to_remote(label, options, html_options = {})
    link_to_remote(label, options, html_options.merge(:class => 'ui_button fg-button'))
  end

  def jquery_theme
    theme_option(:jquery_theme) || 'smoothness_mod'
  end

  def jquery_ui_theme_stylesheet_path
    'jquery.ui/' + jquery_theme + '/jquery-ui-1.8.2.custom'
  end

  def ui_error(message)
    content_tag('div', ui_icon('ui-icon-alert') + message, :class => 'alert fg-state-error ui-state-error')
  end

  def ui_highlight(message)
    content_tag('div', ui_icon('ui-icon-info') + message, :class => 'alert fg-state-highlight ui-state-highlight')
  end

  def float_to_currency(value)
    number_to_currency(value, :unit => environment.currency_unit, :separator => environment.currency_separator, :delimiter => environment.currency_delimiter, :format => "%u %n")
  end

  def collapsed_item_icon
    "<span class='ui-icon ui-icon-circlesmall-plus' style='float:left;'></span>"
  end
  def expanded_item_icon
    "<span class='ui-icon ui-icon-circlesmall-minus' style='float:left;'></span>"
  end
  def leaf_item_icon
    "<span class='ui-icon ui-icon-arrow-1-e' style='float:left;'></span>"
  end

  def display_category_menu(block, categories, root = true)
    categories = categories.sort{|x,y| x.name <=> y.name}
    return "" if categories.blank?
    content_tag(:ul,
      categories.map do |category|
        category_path = category.kind_of?(ProductCategory) ? {:controller => 'search', :action => 'assets', :asset => 'products', :product_category => category.id} : { :controller => 'search', :action => 'category_index', :category_path => category.explode_path }
        category.display_in_menu? ?
        content_tag(:li,
          ( !category.is_leaf_displayable_in_menu? ? content_tag(:a, collapsed_item_icon, :href => "#", :id => "block_#{block.id}_category_#{category.id}", :class => 'category-link-expand ' + (root ? 'category-root' : 'category-no-root'), :onclick => "expandCategory(#{block.id}, #{category.id}); return false", :style => 'display: none') : leaf_item_icon) +
          link_to(content_tag(:span, category.name, :class => 'category-name'), category_path, :class => ("category-leaf" if category.is_leaf_displayable_in_menu?)) +
          content_tag(:div, display_category_menu(block, category.children, false), :id => "block_#{block.id}_category_content_#{category.id}", :class => 'child-category')
        ) : ''
      end
    ) +
    content_tag(:p) +
    (root ? javascript_tag("
      jQuery('.child-category').hide();
      jQuery('.category-link-expand').show();
      var expanded_icon = \"#{ expanded_item_icon }\";
      var collapsed_icon = \"#{ collapsed_item_icon }\";
      var category_expanded = { 'block' : 0, 'category' : 0 };
    ") : '')
  end

  def browse_people_menu
     links = [
       {s_('people|More Recent') => url_for({:controller => 'browse', :action => 'people', :filter => 'more_recent'})},
       {s_('people|More Active') => url_for({:controller => 'browse', :action => 'people', :filter => 'more_active'})},
       {s_('people|More Popular') => url_for({:controller => 'browse', :action => 'people', :filter => 'more_popular'})}
     ]
     if logged_in?
       links.push(_('My friends') => url_for({:profile => current_user.login, :controller => 'friends'}))
       links.push(_('Invite friends') => url_for({:profile => current_user.login, :controller => 'invite', :action => 'friends'}))
     end

    link_to(content_tag(:span, _('People'), :class => 'icon-menu-people'), {:controller => "browse", :action => 'people'}, :id => 'submenu-people') +
    link_to(content_tag(:span, _('People Menu')), '#', :onclick => "toggleSubmenu(this,'',#{links.to_json}); return false", :class => 'menu-submenu-trigger up', :id => 'submenu-people-trigger')
  end

  def browse_communities_menu
     links = [
       {s_('communities|More Recent') => url_for({:controller => 'browse', :action => 'communities', :filter => 'more_recent'})},
       {s_('communities|More Active') => url_for({:controller => 'browse', :action => 'communities', :filter => 'more_active'})},
       {s_('communities|More Popular') => url_for({:controller => 'browse', :action => 'communities', :filter => 'more_popular'})}
     ]
     if logged_in?
       links.push(_('My communities') => url_for({:profile => current_user.login, :controller => 'memberships'}))
       links.push(_('New community') => url_for({:profile => current_user.login, :controller => 'memberships', :action => 'new_community'}))
     end

    link_to(content_tag(:span, _('Communities'), :class => 'icon-menu-community'), {:controller => "browse", :action => 'communities'}, :id => 'submenu-communities') +
    link_to(content_tag(:span, _('Communities Menu')), '#', :onclick => "toggleSubmenu(this,'',#{links.to_json}); return false", :class => 'menu-submenu-trigger up', :id => 'submenu-communities-trigger')
  end

  def pagination_links(collection, options={})
    options = {:prev_label => '&laquo; ' + _('Previous'), :next_label => _('Next') + ' &raquo;'}.merge(options)
    will_paginate(collection, options)
  end

  def usermenu_from_environment_features
    usermenu_html = ''
    environment.enabled_features.keys.each do |feature|
      file = File.join(@controller.view_paths, 'shared', 'usermenu', "#{feature}.rhtml")
      if File.exists?(file)
        usermenu_html << render(:file => file, :use_full_path => false)
      end
    end
    usermenu_html
  end

  def usermenu_logged_in
    (_('Welcome, %s') % link_to('<i></i><strong>%{login}</strong>', '/%{login}', :id => "homepage-link", :title => _('Go to your homepage'))) +
    usermenu_from_environment_features +
    link_to('<i class="icon-menu-admin"></i><strong>' + _('Administration') + '</strong>', { :controller => 'admin_panel', :action => 'index' }, :id => "controlpanel", :title => _("Configure the environment"), :class => 'admin-link', :style => 'display: none') +
    link_to('<i class="icon-menu-ctrl-panel"></i><strong>' + _('Control panel') + '</strong>', '/myprofile/%{login}', :id => "controlpanel", :title => _("Configure your personal account and content")) +
    link_to('<i class="icon-menu-logout"></i><strong>' + _('Logout') + '</strong>', { :controller => 'account', :action => 'logout'} , :id => "logout", :title => _("Leave the system"))
  end

  def limited_text_area(object_name, method, limit, text_area_id, options = {})
    content_tag(:div, [
      text_area(object_name, method, { :id => text_area_id, :onkeyup => "limited_text_area('#{text_area_id}', #{limit})" }.merge(options)),
      content_tag(:p, content_tag(:span, limit) + ' ' + _(' characters left'), :id => text_area_id + '_left'),
      content_tag(:p, _('Limit of characters reached'), :id => text_area_id + '_limit', :style => 'display: none')
    ], :class => 'limited-text-area')
  end

  def pluralize_without_count(count, singular, plural = nil)
    count == 1 ? singular : (plural || singular.pluralize)
  end

  def unique_with_count(list, connector = 'for')
    list.sort.inject(Hash.new(0)){|h,i| h[i] += 1; h }.collect{ |x, n| [n, connector, x].join(" ") }.sort
  end

  #FIXME Use time_ago_in_words instead of this method if you're using Rails 2.2+
  def time_ago_as_sentence(from_time, include_seconds = false)
    to_time = Time.now
    from_time = from_time.to_time if from_time.respond_to?(:to_time)
    to_time = to_time.to_time if to_time.respond_to?(:to_time)
    distance_in_minutes = (((to_time - from_time).abs)/60).round
    distance_in_seconds = ((to_time - from_time).abs).round
    case distance_in_minutes
      when 0..1
        return (distance_in_minutes == 0) ? _('less than a minute') : _('1 minute') unless include_seconds
        case distance_in_seconds
          when 0..4   then _('less than 5 seconds')
          when 5..9   then _('less than 10 seconds')
          when 10..19 then _('less than 20 seconds')
          when 20..39 then _('half a minute')
          when 40..59 then _('less than a minute')
          else             _('1 minute')
        end

      when 2..44           then _('%{distance} minutes') % { :distance => distance_in_minutes }
      when 45..89          then _('about 1 hour')
      when 90..1439        then _('about %{distance} hours') % { :distance => (distance_in_minutes.to_f / 60.0).round }
      when 1440..2879      then _('1 day')
      when 2880..43199     then _('%{distance} days') % { :distance => (distance_in_minutes / 1440).round }
      when 43200..86399    then _('about 1 month')
      when 86400..525599   then _('%{distance} months') % { :distance => (distance_in_minutes / 43200).round }
      when 525600..1051199 then _('about 1 year')
      else                      _('over %{distance} years') % { :distance => (distance_in_minutes / 525600).round }
    end
  end

  def comment_balloon(options = {}, &block)
    wrapper = content_tag(:div, capture(&block), :class => 'comment-balloon-content')
    (1..8).to_a.reverse.each { |i| wrapper = content_tag(:div, wrapper, :class => "comment-wrapper-#{i}") }
    classes = options.delete(:class) || options.delete("class") || ''
    concat(content_tag('div', wrapper + tag('br', :style => 'clear: both;'), { :class => 'comment-balloon ' + classes.to_s }.merge(options)), block.binding)
  end

end