Class: RubyMaat::Analysis::CodeAge

Inherits:
BaseAnalysis show all
Defined in:
lib/ruby_maat/analysis/code_age.rb

Overview

Code age analysis - measures how long since each entity was last modified

Instance Method Summary collapse

Instance Method Details

#analyze(dataset, options = {}) ⇒ Object 



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# File 'lib/ruby_maat/analysis/code_age.rb', line 7

def analyze(dataset, options = {})
  reference_date = options[:age_time_now] || Date.today

  # Find the latest modification date for each entity
  entity_latest_dates = {}

  dataset.to_df.each_row do |row|
    entity = row["entity"]
    date = row["date"]

    entity_latest_dates[entity] = date if entity_latest_dates[entity].nil? || date > entity_latest_dates[entity]
  end

  # Calculate age in months for each entity
  results = entity_latest_dates.map do |entity, last_date|
    months_old = calculate_months_between(last_date, reference_date)

    {
      entity: entity,
      "age-months": months_old
    }
  end

  # Sort by age descending (oldest first)
  results.sort_by! { |r| -r[:"age-months"] }

  to_csv_data(results, %i[entity age-months])
end