Fuzzy time in Elixir
Published · Last Updated · Tags elixir
def from_now(%DateTime{} = later) do
now = DateTime.utc_now()
diff = DateTime.diff(now, later)
do_from_now(diff)
end
def from_now(%NaiveDateTime{} = later) do
now = NaiveDateTime.utc_now()
diff = NaiveDateTime.diff(now, later)
do_from_now(diff)
end
def from_now(_), do: "never"
def do_from_now(diff) do
cond do
diff <= -24 * 3600 -> "in #{div(-diff, 24 * 3600)} days"
diff <= -3600 -> "in #{div(-diff, 3600)} hours"
diff <= -60 -> "in #{div(-diff, 60)} minutes"
diff <= -5 -> "in #{-diff} seconds"
diff <= 5 -> "now"
diff <= 60 -> "#{diff} seconds ago"
diff <= 3600 -> "#{div(diff, 60)} minutes ago"
diff <= 24 * 3600 -> "#{div(diff, 3600)} hours ago"
true -> "#{div(diff, 24 * 3600)} days ago"
end
end