class Standard
  # @!group Sizing System

  # Prototype SizingSystem object
  #
  # @param air_loop_hvac [OpenStudio::Model::AirLoopHVAC] air loop
  # @param dsgn_temps [Hash] a hash of design temperature lookups from standard_design_sizing_temperatures
  # @return [OpenStudio::Model::SizingSystem] sizing system object
  def adjust_sizing_system(air_loop_hvac,
                           dsgn_temps,
                           type_of_load_sizing: 'Sensible',
                           min_sys_airflow_ratio: 0.3,
                           sizing_option: 'Coincident')

    # adjust sizing system defaults
    sizing_system = air_loop_hvac.sizingSystem
    sizing_system.setTypeofLoadtoSizeOn(type_of_load_sizing)
    sizing_system.autosizeDesignOutdoorAirFlowRate
    sizing_system.setPreheatDesignTemperature(dsgn_temps['prehtg_dsgn_sup_air_temp_c'])
    sizing_system.setPrecoolDesignTemperature(dsgn_temps['preclg_dsgn_sup_air_temp_c'])
    sizing_system.setCentralCoolingDesignSupplyAirTemperature(dsgn_temps['clg_dsgn_sup_air_temp_c'])
    sizing_system.setCentralHeatingDesignSupplyAirTemperature(dsgn_temps['htg_dsgn_sup_air_temp_c'])
    sizing_system.setPreheatDesignHumidityRatio(0.008)
    sizing_system.setPrecoolDesignHumidityRatio(0.008)
    sizing_system.setCentralCoolingDesignSupplyAirHumidityRatio(0.0085)
    sizing_system.setCentralHeatingDesignSupplyAirHumidityRatio(0.0080)
    if air_loop_hvac.model.version < OpenStudio::VersionString.new('2.7.0')
      sizing_system.setMinimumSystemAirFlowRatio(min_sys_airflow_ratio)
    else
      sizing_system.setCentralHeatingMaximumSystemAirFlowRatio(min_sys_airflow_ratio)
    end
    sizing_system.setSizingOption(sizing_option)
    sizing_system.setAllOutdoorAirinCooling(false)
    sizing_system.setAllOutdoorAirinHeating(false)
    sizing_system.setSystemOutdoorAirMethod('ZoneSum')
    sizing_system.setCoolingDesignAirFlowMethod('DesignDay')
    sizing_system.setHeatingDesignAirFlowMethod('DesignDay')

    return sizing_system
  end

  # adjust the outdoor air sizing to the use the ventilation rate procedure
  # @todo this needs to be changed in both the sizing system and controller mechanical ventilation objects
  #
  # @param air_loop_hvac [OpenStudio::Model::AirLoopHVAC] air loop
  # @return [Bool] returns true if successful, false if not
  def model_system_outdoor_air_sizing_vrp_method(air_loop_hvac)
    # Do not apply the adjustment to some of the system in
    # the hospital and outpatient which have their minimum
    # damper position determined based on AIA 2001 ventilation
    # requirements
    if (@instvarbuilding_type == 'Hospital' && (air_loop_hvac.name.to_s.include?('VAV_ER') || air_loop_hvac.name.to_s.include?('VAV_ICU') ||
       air_loop_hvac.name.to_s.include?('VAV_OR') || air_loop_hvac.name.to_s.include?('VAV_LABS') ||
       air_loop_hvac.name.to_s.include?('VAV_PATRMS'))) ||
       (@instvarbuilding_type == 'Outpatient' && air_loop_hvac.name.to_s.include?('Outpatient F1'))
      return true
    end

    sizing_system = air_loop_hvac.sizingSystem
    sizing_system.setSystemOutdoorAirMethod('VentilationRateProcedure')
    # Set the minimum zone ventilation efficiency to be 0.6
    air_loop_hvac.thermalZones.sort.each do |zone|
      sizing_zone = zone.sizingZone
      if air_loop_hvac.model.version < OpenStudio::VersionString.new('3.0.0')
        OpenStudio.logFree(OpenStudio::Warn, 'openstudio.prototype.SizingSystem', "The design minimum zone ventilation efficiency cannot be set for #{sizing_system.name.to_s}. It can only be set OpenStudio 3.0.0 and later.")
      else
        sizing_zone.setDesignMinimumZoneVentilationEfficiency(0.6)
      end
    end

    return true
  end
end