Class: HeatingSystemCalculator::HeatingSystem

Inherits:
Object
  • Object
show all
Defined in:
app/services/heating_system_calculator/heating_system.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ HeatingSystem

Returns a new instance of HeatingSystem.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 6

def initialize(options = {})
  @heated_area = options[:heated_area]
  @room_configuration = options[:room_configuration]
  @room_configuration.present? ? pre_process_from_room(@room_configuration) : pre_process_from_options(options)
  @error = { error_status: :missing_catalog, error_message: 'Catalog is missing.' } if @catalog.nil?
  @error = { error_status: :missing_room_type, error_message: 'Room/Area type is missing.' } if @room_type.nil?
  if @room_type and @room_type.environment.downcase.index('indoor') and @sub_floor_type.nil?
    @error = { error_status: :missing_sub_floor_type,
               error_message: 'Sub Floor type is missing.' }
  end
  @error = { error_status: :missing_floor_type, error_message: 'Floor/Surface type is missing.' } if @floor_type.nil?
  @error = { error_status: :missing_heating_system, error_message: 'Heating System Type is missing.' } if @heating_system_product_line.nil?
  @heating_system_type_name = @heating_system_product_line.heating_system_type_name
  @use_in_stock_only = options[:use_in_stock_only]
  @membrane_recommended = options[:membrane_recommended]
  @membrane_type = options[:membrane_type]
end

Instance Attribute Details

#cable_spacing ⇒ Object (readonly)

Returns the value of attribute cable_spacing.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def cable_spacing
  @cable_spacing
end

#catalog ⇒ Object (readonly)

Returns the value of attribute catalog.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def catalog
  @catalog
end

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def error
  @error
end

#floor_type ⇒ Object (readonly)

Returns the value of attribute floor_type.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def floor_type
  @floor_type
end

#heating_system_product_line ⇒ Object (readonly)

Returns the value of attribute heating_system_product_line.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def heating_system_product_line
  @heating_system_product_line
end

#heating_system_type_name ⇒ Object (readonly)

Returns the value of attribute heating_system_type_name.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def heating_system_type_name
  @heating_system_type_name
end

#membrane_recommended ⇒ Object (readonly)

Returns the value of attribute membrane_recommended.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def membrane_recommended
  @membrane_recommended
end

#membrane_type ⇒ Object (readonly)

Returns the value of attribute membrane_type.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def membrane_type
  @membrane_type
end

#room_type ⇒ Object (readonly)

Returns the value of attribute room_type.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def room_type
  @room_type
end

#sub_floor_type ⇒ Object (readonly)

Returns the value of attribute sub_floor_type.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def sub_floor_type
  @sub_floor_type
end

#use_in_stock_only ⇒ Object (readonly)

Returns the value of attribute use_in_stock_only.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def use_in_stock_only
  @use_in_stock_only
end

#voltage ⇒ Object (readonly)

Returns the value of attribute voltage.



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# File 'app/services/heating_system_calculator/heating_system.rb', line 3

def voltage
  @voltage
end

Instance Method Details

#calculate_voltage_from_heated_area ⇒ Object 



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# File 'app/services/heating_system_calculator/heating_system.rb', line 44

def calculate_voltage_from_heated_area
  area = @heated_area.heated_area_sqft
  # test area and criteria keys to see if we need 120V or 240V system
  if ['Snow Melt Mat','Snow Melt PowerMat','Snow Melt OmniMat','Snow Melt EcoMat', 'Snow Melt Cable', 'Slab Heat Mat', 'Slab Heat Cable'].include?(@heating_system_type_name)
    sm_threshold_area = 40.0
    if ['Snow Melt Mat','Snow Melt PowerMat','Snow Melt OmniMat','Snow Melt EcoMat', 'Slab Heat Mat'].include?(@heating_system_type_name)
      controlsvoltage = 120
      threshold = 10.0 if ['Snow Melt Mat','Snow Melt PowerMat','Snow Melt OmniMat','Snow Melt EcoMat'].include?(@heating_system_type_name) # ugly but it works I guess, smallest 240v SMM is 10 ft long
      threshold = 40.0 if ['Slab Heat Mat'].include?(@heating_system_type_name) # ugly but it works I guess, smallest 240v SHM is 40 ft long
      smallest_bigger_dim = 99_999_999.0
      @heated_area.zones.each do |z|
        z_bigger_dim = [z[:length].to_f, z[:width].to_f].max
        smallest_bigger_dim = z_bigger_dim if z_bigger_dim < smallest_bigger_dim
      end
      controlsvoltage = 240 if smallest_bigger_dim >= threshold # prefer 240V if threshold met
      controlsvoltage = 240 if area >= sm_threshold_area # prefer 240V if threshold met
    elsif ['Snow Melt Cable', 'Slab Heat Cable'].include?(@heating_system_type_name)
      controlsvoltage = 120
      smallest_zone_area = 99_999_999.0
      tot_zone_area = 0.0
      @heated_area.zones.each do |z|
        tot_zone_area += z[:sqft].to_f
        smallest_zone_area = z[:sqft].to_f if z[:sqft].to_f < smallest_zone_area
      end
      if ['Slab Heat Cable'].include?(@heating_system_type_name)
        # ugly but it works I guess, smallest 240 SHC cable length using cable spacing of 5
        controlsvoltage = 240 if smallest_zone_area >= 323.0 * @cable_spacing / 12.0
      elsif ['Snow Melt Cable'].include?(@heating_system_type_name)
        # for SMC use 120V if total area is smaller than sm_threshold_area and 240V if bigger
        controlsvoltage = 240 if tot_zone_area >= sm_threshold_area
      end
    end
  elsif ['TempZone Cable'].include?(@heating_system_type_name)
    # for TempZone Cable 3 inch spacing or unknown, use area threshold of 118 sq.ft.
    amax = 118.0
    # for TempZone Cable 4 inch spacing or more, use area threshold of 128 sq.ft.
    amax = 128.0 if @cable_spacing.round >= 4
    controlsvoltage = if area <= amax
                        120
                      else
                        240
                      end
  elsif ['TempZone Thin Cable'].include?(@heating_system_type_name)
    # for TempZone Thin Cable 3 inch spacing or unknown, use area threshold of 145 sq.ft.
    amax = 145.0
    # for TempZone Thin Cable 4 inch spacing or more, use area threshold of 195 sq.ft.
    amax = 195.0 if @cable_spacing.round >= 4
    controlsvoltage = if area <= amax
                        120
                      else
                        240
                      end
  else
    # for TempZone and Environ Flex Rolls and Mats, or no criteria keys, just use area threshold of 115 sq.ft.
    controlsvoltage = if area <= 115.0
                        120
                      else
                        240
                      end
  end
  Voltage.where(id: controlsvoltage).first
end

#pre_process_from_options(options) ⇒ Object 



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# File 'app/services/heating_system_calculator/heating_system.rb', line 34

def pre_process_from_options(options)
  @catalog = options[:catalog]
  @room_type = options[:room_type]
  @sub_floor_type = options[:sub_floor_type]
  @floor_type = options[:floor_type]
  @heating_system_product_line = options[:heating_system_product_line]
  @cable_spacing = options[:cable_spacing]
  @voltage = options[:voltage] || calculate_voltage_from_heated_area
end

#pre_process_from_room(room_configuration) ⇒ Object 



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# File 'app/services/heating_system_calculator/heating_system.rb', line 24

def pre_process_from_room(room_configuration)
  @catalog = room_configuration.customer.catalog
  @room_type = room_configuration.room_type
  @sub_floor_type = room_configuration.sub_floor_type
  @floor_type = room_configuration.floor_type
  @heating_system_product_line = room_configuration.get_heating_system_type
  @cable_spacing = room_configuration.cable_spacing
  @voltage = room_configuration.voltage || calculate_voltage_from_heated_area
end