module Linkr::Helpers
  include Linkr::Models
  include Linkr::Controllers
    
  def current_user
    @env[Linkr.remote_user_property_name] || 'anonymous'
  end
  def markup(body)
    text RedCloth.new(h(body), [:hard_breaks]).to_html
  end
  def h(str)
    str.gsub("<", "&lt;").gsub(">", "&gt;")
  end
  def ago(from)
    #stolen from Rails DateHelper
    t = (((Time.now - from).abs)/60).round
    case t
      when 0..1            then 'less than a minute'
      when 2..44           then "#{t} minutes"
      when 45..89          then 'about 1 hour'
      when 90..1439        then "about #{(t.to_f / 60.0).round} hours"
      when 1440..2879      then '1 day'
      else                      "#{(t / 1440).round} days"
    end + ' ago'
  end
  def link_to_vote(link, dir, active)
    a :id => "vote_#{link.id}_#{dir}", :href => 'javascript:void(0);',
      :class => "arrow #{dir} #{active ? 'active' : ''}",
      :onclick => "vote('#{link.id}', '#{dir}')"
  end
  def pluralize(count, word)
    case count
    when 0 then "no #{word}"
    when 1 then "1 #{word}"
    else        "#{count} #{word.pluralize}"
    end
  end
  def text_field(object, method, options={})
    label method.to_s + (options.delete(:optional) ? ' (optional)' : ''), :for => "#{object}_#{method}"; br
    input({ :id => "#{object}_#{method}", :type => 'text', :name => method.to_s,
            :value => eval("@#{object}.#{method}") }.merge(options))
  end
  def per_page
    Link::PER_PAGE
  end
end