get_report_chart_data.rb

  def get_teams_and_departments_for_compare_time_series(teams, departments, company, minimum_employees)
    team_names = teams ? teams : company.filled_teams(minimum_employees)
    department_names = departments ? departments : company.filled_departments(minimum_employees)

    combined = [team_names.map{|t| {t: t}}, department_names.map{|d| {d: d} }].zip.flatten.compact.first(4)

    selected_teams = combined.select { |obj| obj.has_key? :t }.map { |obj| obj[:team] }
    selected_departments = combined.select { |obj| obj.has_key? :d }.map { |obj| obj[:department] }

    return selected_teams, selected_departments
  end