feat: add segments generate

lib/hls_playlist_segments.ex

@@ -0,0 +1,17 @@
+defmodule HlsPlaylist.Segments do
+
+  def generate(duration, segment_length \\ 3) when duration > 0 and segment_length > 0 do
+    spread_duration(duration, segment_length, [])
+  end
+
+  defp spread_duration(duration, _segment_length, acc) when duration <= 0 do
+    Enum.map(acc, fn x -> Float.round((x * 1.0), 2) end)
+    |> Enum.reverse()
+  end
+
+  defp spread_duration(duration, segment_length, acc) do
+    next_duration = min(duration, segment_length)
+
+    spread_duration(duration - next_duration, segment_length, [next_duration | acc])
+  end
+end

test/hls_playlist_segments_test.exs

@@ -0,0 +1,19 @@
+defmodule HlsPlaylist.Segments.Test do
+  use ExUnit.Case
+
+  test "it should generate" do
+    assert HlsPlaylist.Segments.generate(32.21, 3) == [
+      3.0,
+      3.0,
+      3.0,
+      3.0,
+      3.0,
+      3.0,
+      3.0,
+      3.0,
+      3.0,
+      3.0,
+      2.21
+    ]
+  end
+end