aprs.me/lib/aprs_web/time_helpers.ex
2025-06-22 10:49:35 -05:00

29 lines
1.2 KiB
Elixir

defmodule AprsWeb.TimeHelpers do
@moduledoc """
Shared helpers for formatting time and dates in the web layer.
"""
@doc """
Returns a human-readable string for how long ago the given DateTime was.
"""
def time_ago_in_words(datetime) do
now = DateTime.utc_now()
diff_seconds = DateTime.diff(now, datetime, :second)
format_time_diff(diff_seconds) <> " ago"
end
defp format_time_diff(seconds) when seconds < 60, do: "less than a minute"
defp format_time_diff(seconds) when seconds < 120, do: "1 minute"
defp format_time_diff(seconds) when seconds < 3600, do: "#{div(seconds, 60)} minutes"
defp format_time_diff(seconds) when seconds < 7200, do: "1 hour"
defp format_time_diff(seconds) when seconds < 86_400, do: "#{div(seconds, 3600)} hours"
defp format_time_diff(seconds) when seconds < 172_800, do: "1 day"
defp format_time_diff(seconds) when seconds < 2_592_000, do: "#{div(seconds, 86_400)} days"
defp format_time_diff(seconds) when seconds < 5_184_000, do: "1 month"
defp format_time_diff(seconds) when seconds < 31_536_000, do: "#{div(seconds, 2_592_000)} months"
defp format_time_diff(seconds) when seconds < 63_072_000, do: "1 year"
defp format_time_diff(seconds), do: "#{div(seconds, 31_536_000)} years"
end