Module: Textus::Domain::Freshness::Evaluator

Defined in:
lib/textus/domain/freshness/evaluator.rb

Class Method Summary collapse

Class Method Details

.call(policy, envelope, now:) ⇒ Object 



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# File 'lib/textus/domain/freshness/evaluator.rb', line 9

def call(policy, envelope, now:)
  return Verdict.fresh if policy.ttl_seconds.nil?

  last_str = envelope.dig("_meta", "last_refreshed_at")
  return Verdict.stale("never refreshed") if last_str.nil?

  last = begin
    Time.parse(last_str.to_s)
  rescue ArgumentError, TypeError
    nil
  end
  return Verdict.stale("unparseable last_refreshed_at: #{last_str.inspect}") if last.nil?

  age = now - last
  return Verdict.fresh if age <= policy.ttl_seconds

  Verdict.stale("ttl exceeded (age=#{age.to_i}s, ttl=#{policy.ttl_seconds}s)")
end