Module: Ratchet::PricingHelper

Defined in:
app/helpers/ratchet/pricing_helper.rb

Constant Summary collapse

TYPE_SIZE = 
{
  'data'    => { ram: 0.1, storage: 1 },
  'memory'  => { ram: 0.25, storage: 0.25 },
  'memdata' => { ram: 0.25, storage: 0.25 }
}
UNITS = 
units

Instance Method Summary collapse

Instance Method Details

#nearest_size(size) ⇒ Object 



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# File 'app/helpers/ratchet/pricing_helper.rb', line 121

def nearest_size(size)
  if size > 1024
    "#{(size / 1024).round(2)} TB"
  else
    size = (size * 1024 * 1048576).round(2) # GiB -> MiB -> Bytes
    ActionController::Base.helpers.number_to_human_size(size, precision: 3).sub(/\.0 /,' ')
  end
end

#number_to_currency(value) ⇒ Object 



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# File 'app/helpers/ratchet/pricing_helper.rb', line 78

def number_to_currency(value)
  ActionController::Base.helpers.number_to_currency(value, unit: '')
end

#pricing_data ⇒ Object 



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# File 'app/helpers/ratchet/pricing_helper.rb', line 22

def pricing_data
  @deployment_pricing ||= begin
    deployment_data = Site.config_data['deployments']

    # Only select pricing for deployments we have planned UI for
    pricing = Site.config_data['pricing'].select { |d| deployment_data['slugs'][ d['slug'] ] }

    deployment_pricing = {}
    pricing.each do |deployment|

      slug       = deployment_data['slugs'][ deployment['slug'] ]
      overhead   = deployment['base_overhead'] || 0
      type       = deployment['scalables'].first['type']
      type_size  = TYPE_SIZE[type] # Storage/Memory configuration for this deployment type
      tiers      = deployment['scalables'].first['price_tiers']
      base_price = tiers.first['unit_cost'] # Get per unit price with no discount
      max_storage = deployment_data['deployments'][slug][:max_storage_units] || UNITS.last
      max_ram = deployment_data['deployments'][slug][:max_ram_units] || UNITS.last

      new_data   = {
        type:        type,
        units:       [],
        price:       [],
        price_ph:    [],
        discount:    [],
        savings:     [],
        storage:     [],
        memory:      []
      }
      
      units = UNITS.select {|u| tiers.first['range'][0] <= u }

      tiers.each do |tier|

        range     = units.select{ |u| tier['range'].first <= u && u <= tier['range'].last }
        cost      = tier['unit_cost']
        discount  = tier['discount_pct']

        new_data[:units].concat     range
        new_data[:price].concat     range.map{|r| number_to_currency((cost * r) + overhead) }
        new_data[:price_ph].concat  range.map{|r| (((cost * r) + overhead).to_f / 720).round(4) }
        new_data[:discount].concat  range.map{|r| discount }
        new_data[:savings].concat   range.map{|r| number_to_currency(((cost * r) + overhead) * discount/100 )}
        new_data[:storage].concat   range.map{|r| (r < max_storage ? r : max_storage) * type_size[:storage] }
        new_data[:memory].concat    range.map{|r| (r < max_ram ? r : max_ram) * type_size[:ram] }

      end

      deployment_pricing[slug] = new_data

    end

    deployment_pricing
  end
end

#pricing_slider(name, options = {}) ⇒ Object 



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# File 'app/helpers/ratchet/pricing_helper.rb', line 82

def pricing_slider(name, options={})
  data = pricing_data[name].merge(options)


  data[:mark] = []
  data[:storage].map!{ |s| nearest_size(s) }
  data[:memory].map!{ |s| nearest_size(s) }

  label_with = data[:type] == 'data' ? data[:storage] : data[:memory]

  data[:line_labels] = { 
    "1" => label_with.first,
    "#{data[:units].size}" => label_with.last 
  }

  current_discount = 0

  data[:discount].each_with_index do |d, index|
    if d != current_discount
      current_discount = d
      data[:mark].push index + 1
    end
  end

  data[:values] = data.delete(:units)

  data[:external_labels] = {
    discount: data.delete(:discount).map{|d| d == 0 ? '' : d },
    savings:  data.delete(:savings).map{|d| d == '0.00' ? '' : d },
    storage:  data.delete(:storage),
    memory:   data.delete(:memory),
    price_m:  data.delete(:price),
    price_h:  data.delete(:price_ph)
  }

  data

end