Class: PredictabilityEngine::Calculators::Aging

Inherits:
Object
  • Object
show all
Defined in:
lib/predictability_engine/calculators/aging.rb

Class Method Summary collapse

Class Method Details

.current_wip(work_items, date = PredictabilityEngine.today) ⇒ Object 



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# File 'lib/predictability_engine/calculators/aging.rb', line 6

def self.current_wip(work_items, date = PredictabilityEngine.today)
  work_items.select { |item| item.in_progress?(date) }
end

.item_age_data(work_items, date = PredictabilityEngine.today) ⇒ Object 



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# File 'lib/predictability_engine/calculators/aging.rb', line 22

def self.item_age_data(work_items, date = PredictabilityEngine.today)
  data = current_wip(work_items, date).map do |item|
    {
      id: item.id,
      title: item.title,
      age: item.age(date),
      start_date: item.start_date,
      url: item.url
    }
  end
  data.sort_by { |d| d[:age] }.reverse
end

.summary_metrics(work_items, date = PredictabilityEngine.today) ⇒ Object 



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# File 'lib/predictability_engine/calculators/aging.rb', line 10

def self.summary_metrics(work_items, date = PredictabilityEngine.today)
  wip = current_wip(work_items, date)
  return nil if wip.empty?

  ages = wip.map { |item| item.age(date) }
  {
    count: wip.size,
    avg_age: (ages.sum.to_f / ages.size).round(1),
    max_age: ages.max
  }
end