class Standard
  # @!group CoilCoolingWaterToAirHeatPumpEquationFit

  # Finds capacity in W
  #
  # @return [Double] capacity in W to be used for find object
  def coil_cooling_water_to_air_heat_pump_find_capacity(coil_cooling_water_to_air_heat_pump)
    capacity_w = nil
    if coil_cooling_water_to_air_heat_pump.ratedTotalCoolingCapacity.is_initialized
      capacity_w = coil_cooling_water_to_air_heat_pump.ratedTotalCoolingCapacity.get
    elsif coil_cooling_water_to_air_heat_pump.autosizedRatedTotalCoolingCapacity.is_initialized
      capacity_w = coil_cooling_water_to_air_heat_pump.autosizedRatedTotalCoolingCapacity.get
    else
      OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.CoilCoolingWaterToAirHeatPumpEquationFit', "For #{coil_cooling_water_to_air_heat_pump.name} capacity is not available, cannot apply efficiency standard.")
      return 0.0
    end

    return capacity_w
  end

  # Finds lookup object in standards and return efficiency
  #
  # @param rename [Bool] if true, object will be renamed to include capacity and efficiency level
  # @return [Double] full load efficiency (COP)
  def coil_cooling_water_to_air_heat_pump_standard_minimum_cop(coil_cooling_water_to_air_heat_pump, rename = false)
    search_criteria = {}
    search_criteria['template'] = template
    capacity_w = coil_cooling_water_to_air_heat_pump_find_capacity(coil_cooling_water_to_air_heat_pump)
    capacity_btu_per_hr = OpenStudio.convert(capacity_w, 'W', 'Btu/hr').get
    capacity_kbtu_per_hr = OpenStudio.convert(capacity_w, 'W', 'kBtu/hr').get

    # Look up the efficiency characteristics
    coil_props = model_find_object(standards_data['water_source_heat_pumps'], search_criteria, capacity_btu_per_hr, Date.today)

    # Check to make sure properties were found
    if coil_props.nil?
      OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.CoilCoolingWaterToAirHeatPumpEquationFit', "For #{coil_cooling_water_to_air_heat_pump.name}, cannot find efficiency info using #{search_criteria}, cannot apply efficiency standard.")
      successfully_set_all_properties = false
      return successfully_set_all_properties
    end

    # Get the minimum efficiency standards
    cop = nil

    # If specified as EER (heat pump)
    unless coil_props['minimum_full_load_efficiency'].nil?
      min_eer = coil_props['minimum_full_load_efficiency']
      cop = eer_to_cop(min_eer, capacity_w = nil)
      new_comp_name = "#{coil_cooling_water_to_air_heat_pump.name} #{capacity_kbtu_per_hr.round}kBtu/hr #{min_eer}EER"
      OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.CoilCoolingWaterToAirHeatPumpEquationFit', "For #{template}: #{coil_cooling_water_to_air_heat_pump.name}: Capacity = #{capacity_kbtu_per_hr.round}kBtu/hr; EER = #{min_eer}")
    end

    # Rename
    if rename
      coil_cooling_water_to_air_heat_pump.setName(new_comp_name)
    end

    return cop
  end

  # Applies the standard efficiency ratings and typical performance curves to this object.
  #
  # @return [Bool] true if successful, false if not
  def coil_cooling_water_to_air_heat_pump_apply_efficiency_and_curves(coil_cooling_water_to_air_heat_pump, sql_db_vars_map)
    successfully_set_all_properties = true

    # Get the search criteria
    search_criteria = {}
    search_criteria['template'] = template
    capacity_w = coil_cooling_water_to_air_heat_pump_find_capacity(coil_cooling_water_to_air_heat_pump)
    capacity_btu_per_hr = OpenStudio.convert(capacity_w, 'W', 'Btu/hr').get

    # Look up the efficiency characteristics
    coil_props = model_find_object(standards_data['water_source_heat_pumps'], search_criteria, capacity_btu_per_hr, Date.today)

    # Check to make sure properties were found
    if coil_props.nil?
      OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.CoilCoolingWaterToAirHeatPumpEquationFit', "For #{coil_cooling_water_to_air_heat_pump.name}, cannot find efficiency info using #{search_criteria}, cannot apply efficiency standard.")
      successfully_set_all_properties = false
      return sql_db_vars_map
    end

    # TODO: Add methods to set coefficients, and add coefficients to data spreadsheet
    # using OS defaults for now
    # tot_cool_cap_coeff1 = coil_props['tot_cool_cap_coeff1']
    # if tot_cool_cap_coeff1
    #   coil_cooling_water_to_air_heat_pump.setTotalCoolingCapacityCoefficient1(tot_cool_cap_coeff1)
    # else
    #   OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.CoilCoolingWaterToAirHeatPumpEquationFit', "For #{coil_cooling_water_to_air_heat_pump.name}, cannot find tot_cool_cap_coeff1, will not be set.")
    #   successfully_set_all_properties = false
    # end

    # Preserve the original name
    orig_name = coil_cooling_water_to_air_heat_pump.name.to_s

    # Find the minimum COP and rename with efficiency rating
    cop = coil_cooling_water_to_air_heat_pump_standard_minimum_cop(coil_cooling_water_to_air_heat_pump, true)

    # Map the original name to the new name
    sql_db_vars_map[coil_cooling_water_to_air_heat_pump.name.to_s] = orig_name

    # Set the efficiency values
    unless cop.nil?
      coil_cooling_water_to_air_heat_pump.setRatedCoolingCoefficientofPerformance(cop)
    end

    return sql_db_vars_map
  end
end