time_ago_in_words.ex

def time_ago_in_words(seconds) do
  minutes = round(seconds/60)

  case minutes do
    minutes when minutes in 0..1 ->
      case seconds do
        seconds when seconds in 0..4 ->
          "less than 5 seconds"
        seconds when seconds in 5..9 ->
          "less than 10 seconds"
        seconds when seconds in 10..19 ->
          "less than 20 seconds"
        seconds when seconds in 20..39 ->
          "half a minute"
        seconds when seconds in 40..59 ->
          "less than 1 minute"
        _ ->
          "1 minute"
      end
    minutes when minutes in 2..44 ->
      "#{minutes} minutes"
    minutes when minutes in 45..89 ->
      "about 1 hour"
    minutes when minutes in 90..1439 ->
      "about #{round(minutes/60)} hours"
    minutes when minutes in 1440..2519 ->
      "1 day"
    minutes when minutes in 2520..43199 ->
      "#{round(minutes/1440)} days"
    minutes when minutes in 43200..86399 ->
      "about 1 month"
    minutes when minutes in 86400..525599 ->
      "#{round(minutes/43200)} months"
    minutes when minutes in 525600..1051199 ->
      "1 year"
    _ ->
      "#{round(minutes/525600)} years"
  end
end