module OrbitBackendHelper

#========================================================================================================================
# from bulletin_helper.rb
#========================================================================================================================  

  def show_reject_reason(object)
    by_object = object.is_rejected
    by_user = (((object.create_user_id == current_user.id) rescue nil) or is_manager? or is_admin?)
    by_object && by_user
  end

  def show_form_status_field(object)
    #by_object = (!object.is_expired? and object.is_pending?)
    by_user = ((object.send(@category_field).authed_users('fact_check').include?(current_user) rescue nil) or is_manager? or is_admin?)
    by_user
  end

  def show_approval_link(object)
    by_object = (!object.is_expired? and object.is_pending?)
    by_user = ((object.send(@category_field).authed_users('fact_check').include?(current_user) rescue nil) or is_manager? or is_admin?)
    by_object and  by_user
  end

  def show_delete_link(object)
    if !current_user.nil?
      by_object = (object.create_user_id == current_user.id ) 
      by_user = (is_manager? or is_admin?)
      by_object or  by_user  
    else
      false
    end
    
  end

  # def show_bulletin_title_at_index (bulletin)
  #   if bulletin.is_checked?
  #     link_to bulletin.title, panel_announcement_front_end_bulletin_path(bulletin, :category_id => bulletin.bulletin_category.id) rescue ''
  #   else
  #     bulletin.title
  #   end  
  # end

#========================================================================================================================
#========================================================================================================================
#========================================================================================================================
#========================================================================================================================
#========================================================================================================================
#========================================================================================================================
#========================================================================================================================

  def is_filter_active?(type, id)
    ' active' if (@filter[type].include?(id.to_s) rescue nil)
  end

  def is_sort_active?(field)
    res = t(field[:translation])
    if params[:sort].eql?(field[:sort])
      res << " " + content_tag(:b, nil, class: (params[:direction].eql?('asc') ? "icons-arrow-up-3" : "icons-arrow-down-4 "))
    end
    res.html_safe
  end

  def show_toggle_archive_btn(object)
    object.disable ? t(:disable) : t(:enable) 
  end

  def sortable_options(column)
    direction = (column == params[:sort] && params[:direction] == "asc") ? "desc" : "asc"
    {:sort => column, :direction => direction}
  end


  # ===============================================================
  # associated:
  #   
  # TODO: link for other types
  # ===============================================================
  def get_value(object, field)
    authorization = !@authorization || (@authorization && is_authorized(object))
    approvable = !@approvable || (@approvable && is_approvable(object))
    res = ''
    case field[:type]
    when 'associated'
      res << object.send(field[:db_field]).send(field[:associated_value]) rescue ''
    when 'date'
      res << (object.send(field[:db_field]) ? display_date_time(object.send(field[:db_field])) : t(:no_date))
    when 'field'
      res << with_link?(field, object, object.send(field[:db_field]))
      if field[:quick_edit]
        res << (content_tag :div, class: "quick-edit" do
                  content_tag :ul, class: "nav nav-pills" do
                    @quick_edit.each do |quick|
                      concat get_quick_link(quick, object, authorization, approvable)
                    end
                  end
                end)
      end
    when 'status'
      if object.is_top?
        res << content_tag(:span, t(:top), class: "label label-success")
      end
      if object.is_hot?
        res << content_tag(:span, t(:hot), class: "label label-important")
      end
      if object.is_hidden?
        res << content_tag(:span, t(:hidden), class: "label")
      end
      if object.is_pending?
        res << content_tag(:span, t(:pending), class: "label")
      end
      if object.is_checked?
        res << content_tag(:span, t(:passed), class: "label")
      end
      if object.is_rejected?
        res << content_tag(:span, t(:rejected), class: "label")
      end
    when 'tags'
      object.sorted_tags.each do |tag|
        res << content_tag(:span, tag.name, class: "label label-warning")
      end if object.tags
      res.html_safe
    when 'id'
      res << field[:id_model].constantize.find(object.send(field[:db_field])).name rescue ''
    end
    res.html_safe
  end

  def index_table
    content_tag :table, class: "table main-list" do
      concat (content_tag :thead do
        (content_tag :tr, class: "sort-header" do
          @fields.each do |field|
            concat (content_tag :th, "data-hide" => field[:hide], class: ('active' if params[:sort].eql?(field[:sort])) do
              if @sortable
                link_to is_sort_active?(field), url_for({:filter => @filter}.merge(sortable_options(field[:sort]).merge(:sort_options => field[:db_field])))
              else
                t(field[:translation])
              end
            end)
          end
        end)
      end)
      concat (content_tag :tbody do
        (@objects.each do |object|
          concat (content_tag :tr do
            (@fields.each do |field|
              concat(content_tag :td, get_value(object, field))
            end)
          end)
        end)
      end)
    end
  end

  def set_default_index(&block)
    @approvable = false
    @authorization = false
    @categories = []
    @category_field = nil
    @fields = []
    @filterable = false
    @index_footer = nil
    @quick_edit = []
    @sortable = false
    block.call
  end

  protected

  def approvable
    @approvable = true
  end

  def authorization
    @authorization = true
  end

  def category_field(name)
    @category_field = name
  end

  # ===============================================================
  # type:
  #   check "get_value"
  # associated_value:
  #   check "get_value"
  # db_field:
  #   name of the field(s) in the database
  # translation:
  #   key in the yml translation files
  # hide:
  #   - no value: always shown
  #   - all: alway hidden
  #   - phone: hidden for phone
  # sort:
  #   unique value used for keeping the sorted column
  # link:
  #   if provided, the values will be shown as link
  #   (only available for type 'field' for now)
  # ===============================================================
  def field(args={})
    @fields << args if !args.blank? && args[:type] && args[:translation] && args[:db_field]
  end

  def filterable(categories)
    @filterable = true
    @categories = categories
  end

  # ===============================================================
  # args:
  #   - paginate: default true, there'es no need to specify it
  #   - link: path to the new action
  # TODO: links to other actions
  # ===============================================================
  def footer(args={})
    paginate = args.has_key?(:paginate) ? args[:paginate] : true
    link = (is_manager? || is_sub_manager? rescue nil) && args.has_key?(:link) ? true : false
    if paginate || link
      @index_footer = content_tag :div, class: "bottomnav clearfix" do
        concat content_tag :div, link_to(content_tag(:i, nil, :class => 'icon-plus') + ' ' + t(:add), send(args[:link]), :class => 'btn btn-primary' ), class: "action pull-right" if link
        concat content_tag :div, paginate(@objects, :params => {:direction => params[:direction], :sort => params[:sort], :filter => @filter, :new_filter => nil, :sort_options => params[:sort_options]}), class: "pagination pagination-centered" if paginate
      end
    end
  end

  def get_quick_link(quick, object, authorization, approvable)
    case quick[:type]
    when 'approval'
      if show_approval_link(object)
        content_tag :li, link_to(t(quick[:translation] || :approval_), eval("#{quick[:link]}('#{object.id}')"), class: "preview_trigger #{quick[:class]}")
      end
    when 'edit'
      if authorization && approvable
        content_tag :li, link_to(t(quick[:translation] || :edit), eval("#{quick[:link]}('#{object.id}')"), class: quick[:class])
      end
    when 'delete'
      if show_delete_link(object)
        content_tag :li, link_to(t(quick[:translation] || :delete_), '#', rel: eval("#{quick[:link]}('#{object.id}')"), class: "delete_link #{quick[:class] || 'text-error'}")
      end
    when 'detail'
      content_tag :li, link_to(t(quick[:translation] || :detail), '#', class: (quick[:class] || "detail-row"))
    when 'reject_reason'
      if show_reject_reason(object)
        content_tag :li, link_to(t(quick[:translation] || :rejected_reason) + ' ' + truncate(object.not_checked_reason, :length => 10), '#', rel: "tooltip", 'data-original-title' => (wrap_string_with(object.not_checked_reason, :line_width => 24)), class: "reject_info #{quick[:class]}")
      end
    else
      content_tag :li, link_to(t(quick[:translation]), eval("#{quick[:link]}('#{object.id}')"), class: quick[:class])
    end
  end

  def is_approvable(object)
    current_or_guest_user.admin? || (!object.is_rejected? && !object.is_checked?)
  end

  def is_authorized(object)
    # TODO: refactor category code and replace following 'bulletin_category'
    at_least_module_manager || object.send(@category_field).cur_user_is_sub_manager_of(:submit)
  end

  def quick_edit_link(args)
    @quick_edit << args
  end

  def objects(objects)
    @objects = objects
  end

  def sortable
    @sortable = true
  end

  def with_link?(field, object, value)
    if field[:link] && @approvable
      if object.class.instance_methods.include?(:is_checked?) && object.is_checked?
        link_to(value, eval("#{field[:link]}('#{object.id}')"))
        # link_to bulletin.title, panel_announcement_front_end_bulletin_path(bulletin, :category_id => bulletin.bulletin_category.id) rescue ''
      else
        value
      end  
    elsif field[:link]
      link_to(value, eval("#{field[:link]}('#{object.id}')"))
    else
      value
    end
  end

end