captains_log

elixir/captains-log/lib/captains_log.ex

@@ -0,0 +1,20 @@
+defmodule CaptainsLog do
+  @planetary_classes ["D", "H", "J", "K", "L", "M", "N", "R", "T", "Y"]
+
+  def random_planet_class() do
+    Enum.random(@planetary_classes)
+  end
+
+  def random_ship_registry_number() do
+    "NCC-#{Enum.random(1_000..9_999)}"
+  end
+
+  def random_stardate() do
+    :rand.uniform() * 1_000 + 41_000
+  end
+
+  def format_stardate(stardate) do
+    :io_lib.format('~.1f', [stardate])
+    |> Kernel.to_string()
+  end
+end