require 'html_helper'

module ApplicationHelper
  include HtmlHelper
  
  def display_standard_flashes(message = 'There were some problems with your submission:')
    if flash[:notice]
      flash_to_display, level = flash[:notice], 'notice'
    elsif flash[:warning]
      flash_to_display, level = flash[:warning], 'warning'
    elsif flash[:error]
      level = 'error'
      if flash[:error].instance_of? ActiveRecord::Errors
        flash_to_display = message
        flash_to_display << activerecord_error_list(flash[:error])
      else
        flash_to_display = flash[:error]
      end
    else
      return
    end
    content_tag 'div', flash_to_display, :class => "flash #{level}"
  end

  def activerecord_error_list(errors)
    error_list = '<ul class="error_list">'
    error_list << errors.collect do |e, m|
      "<li>#{e.humanize unless e == "base"} #{m}</li>"
    end.to_s << '</ul>'
    error_list
  end
  
  def plugin_meta(label, attribute, opts={})
    return if attribute.to_s.empty?
    opts.reverse_merge!(:link => false, :html => {})
    unless attribute.blank?
      if opts[:link]
        content_tag('li', content_tag('span', label, :class => 'label') << '<br />' << content_tag('a', attribute, :href => attribute), opts[:html])
      else
        content_tag('li', content_tag('span', label, :class => 'label') << '<br />' << attribute.to_s, opts[:html])
      end
    end
  end
  
  def plugin_install_tool_name
    'RaPT'
  end

  def labelled_form_field(object, attribute, label_text, form_field, helper_text = nil)
    label_content = label_text
    label_content << error_list_for(object, attribute) if object.errors.on(attribute)
    label = content_tag('label', label_content)
    field = form_field << tag('br')
    helper = ''; helper << content_tag('span', helper_text, :class => 'field_helper') unless helper_text.nil?
    label << field << helper
  end
  
  def error_list_for(object, attribute)
    error_list = object.errors[attribute].collect { |e| 
      content_tag('li', Inflector::humanize(attribute.to_s) + " " + e)
    }
    content_tag('ul', error_list, :class => 'field_errors')
  end
end