swarm_game

# AntSwarm.add_ant(AntSwarm)
# AntSwarm.total_food_count(AntSwarm)
defmodule AntSwarm do
  use GenServer

  # Client API
  def start_link(name) do
    GenServer.start_link(__MODULE__, :ok, name: name)
  end

  def add_ant(server) do
    GenServer.cast(server, {:add_ant})
  end

  def total_food_count(server) do
    GenServer.call(server, {:total_food_count})
  end

  # Server API
  def init(:ok) do
    {:ok, []}
  end

  # def handle_cast({:find_food, quantity}, state) do
  #   hunt_duration = 1000 + :rand.uniform(5000)
  #   Process.send_after(self(), {:update_food, quantity}, hunt_duration)
  #   {:noreply, state}
  # end

  def handle_cast({:add_ant}, state) do
    {:ok, ant} = Ant.Supervisor.spawn_ant
    Task.async(fn -> Ant.find_food(ant) end)
    new_state = state ++ [ant]
    {:noreply, new_state}
  end

  def handle_call({:total_food_count}, _from, state) do
    total_food_count = Enum.sum(Enum.map(state, fn ant -> Ant.show_food(ant) end))
    {:reply, total_food_count, state}
  end

  # def handle_info({:update_food, quantity}, state) do
  #   {:noreply, state + quantity}
  # end
end