Durations

Describe durations for people

Break durations into days, hours, and minutes, and describe them in plain words.

Reference

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Sourceupstream/durations/humanize.vibe
def plural(count: int, unit: string) -> string
  count == 1 ? "1 #{unit}" : "#{count} #{unit}s"
end

def describe(span: duration) -> string
  parts = span.parts
  words: array<string> = []
  words << plural(parts["days"], "day") if parts["days"] > 0
  words << plural(parts["hours"], "hour") if parts["hours"] > 0
  words << plural(parts["minutes"], "minute") if parts["minutes"] > 0
  words.empty? ? "less than a minute" : words.join(", ")
end

def run -> { descriptions: hash<string, string>, total: string, longest: string }
  spans: hash<string, duration> = {
    build: 7.minutes + 30.seconds,
    review: Duration.parse("26h15m"),
    deploy: 45.seconds,
    rollout: 3.days + 1.hours
  }
  longest = spans.to_a.max_by { |pair| pair[1] }

  {
    descriptions: spans.transform_values { |span| describe(span) },
    total: describe(spans.values.sum(0.seconds)),
    longest: longest == nil ? "none" : longest[0]
  }
end

Output

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