module IssuesHelper
  def reportable_url(reportable)
    class_name = reportable.class.name
    case class_name
    when "DiaryEntry"
      link_to reportable.title, :controller => reportable.class.name.underscore, :action => :view, :display_name => reportable.user.display_name, :id => reportable.id
    when "User"
      link_to reportable.display_name.to_s, :controller => reportable.class.name.underscore, :action => :view, :display_name => reportable.display_name
    when "DiaryComment"
      link_to "#{reportable.diary_entry.title}, Comment id ##{reportable.id}", :controller => reportable.diary_entry.class.name.underscore, :action => :view, :display_name => reportable.diary_entry.user.display_name, :id => reportable.diary_entry.id, :comment_id => reportable.id
    when "Changeset"
      link_to "Changeset ##{reportable.id}", :controller => :browse, :action => :changeset, :id => reportable.id
    when "Note"
      link_to "Note ##{reportable.id}", :controller => :browse, :action => :note, :id => reportable.id
    end
  end

  def reports_url(issue)
    class_name = issue.reportable.class.name
    case class_name
    when "DiaryEntry"
      link_to issue.reportable.title, issue
    when "User"
      link_to issue.reportable.display_name.to_s, issue
    when "DiaryComment"
      link_to "#{issue.reportable.diary_entry.title}, Comment id ##{issue.reportable.id}", issue
    when "Changeset"
      link_to "Changeset ##{issue.reportable.id}", issue
    when "Note"
      link_to "Note ##{issue.reportable.id}", issue
    end
  end

  def instance_url(reportable)
    class_name = reportable.class.name
    case class_name
    when "DiaryEntry"
      link_to "Show Instance", :controller => reportable.class.name.underscore, :action => :view, :display_name => reportable.user.display_name, :id => reportable.id
    when "User"
      link_to "Show Instance", :controller => reportable.class.name.underscore, :action => :view, :display_name => reportable.display_name
    when "DiaryComment"
      link_to "Show Instance", :controller => reportable.diary_entry.class.name.underscore, :action => :view, :display_name => reportable.diary_entry.user.display_name, :id => reportable.diary_entry.id, :comment_id => reportable.id
    when "Changeset"
      link_to "Show Instance", :controller => :browse, :action => :changeset, :id => reportable.id
    when "Note"
      link_to "Show Instance", :controller => :browse, :action => :note, :id => reportable.id
    end
  end

  def sortable(column, title = nil)
    title ||= column.titleize
    direction = column == sort_column && sort_direction == "asc" ? "desc" : "asc"
    if column == sort_column
      arrow = direction == "desc" ? ["25B2".hex].pack("U") : ["25BC".hex].pack("U")
      title += arrow
    end
    # FIXME: link_to title, params.merge(:sort => column, :direction => direction)
  end

  def report_type(report_class)
    case report_class
    when "DiaryEntry"
      t("activerecord.models.diary_entry")
    when "User"
      t("activerecord.models.user")
    when "DiaryComment"
      t("activerecord.models.diary_comment")
    when "Changeset"
      t("activerecord.models.changeset")
    when "Note"
      t("activerecord.models.note")
    end
  end
end