Added BiddingRoundServer "CurrentRoundServer" with a facade to control it. "Listing Biddings" page shows information which round is currently running.

lib/beet_round_server/bidding_rounds/bidding_round_server.ex

@@ -0,0 +1,39 @@
+defmodule BeetRoundServer.BiddingRounds.BiddingRoundServer do
+  use GenServer
+  def inc(pid), do: GenServer.cast(pid, :inc)
+  def dec(pid), do: GenServer.cast(pid, :dec)
+
+  def val(pid) do
+    GenServer.call(pid, :val)
+  end
+
+  def stop(pid) do
+    GenServer.stop(pid)
+  end
+
+  def start(initial_val) do
+    GenServer.start(__MODULE__, initial_val, name: CurrentRoundServer)
+  end
+
+  def init(initial_val) do
+    {:ok, initial_val}
+  end
+
+  def terminate(_reason, val) do
+    IO.puts("Stopping bidding round:")
+    IO.puts(val)
+    :ok
+  end
+
+  def handle_cast(:inc, val) do
+    {:noreply, val + 1}
+  end
+
+  def handle_cast(:dec, val) do
+    {:noreply, val - 1}
+  end
+
+  def handle_call(:val, _from, val) do
+    {:reply, val, val}
+  end
+end