defmodule <%= inspect(@module) %> do
  @moduledoc """
  `Finitomata`-based implementation of …
  """

  @fsm """
  <%= String.trim(@fsm) %>
  """

  <%= @use_clause %>

  # State

  @type t :: %{
    __struct__: __MODULE__,
    name: Finitomata.fsm_name()
  }

  defstruct name: nil

  # Interface

  @spec start_fsm(Finitomata.id(), Finitomata.fsm_name()) ::
          DynamicSupervisor.on_start_child()
  def start_fsm(id \\ nil, name),
    do: Finitomata.start_fsm(id, name, __MODULE__, %__MODULE__{name: name})

  # Implementation

  <%= for %Finitomata.Transition{from: from, to: to, event: event} <- @transitions, from != :* do %>
  <%= if to != :* or not @auto_terminate? do %>
  @impl Finitomata
  def on_transition(:<%= from %>, :<%= event %>, _event_payload, state) do
    {:ok, :<%= to %>, state}
  end
  <% end %>
  <% end %>

  <%= if @timer? do %>
  @impl Finitomata
  def on_timer(_fsm_state, state) do
    {:ok, state}
  end
  <% end %>

  <%= if :on_enter in @to_implement do %>
  @impl Finitomata
  def on_enter(_fsm_state, _state) do
    :ok
  end
  <% end %>

  <%= if :on_exit in @to_implement do %>
  @impl Finitomata
  def on_exit(_fsm_state, _state) do
    :ok
  end
  <% end %>

  <%= if :on_failure in @to_implement do %>
  @impl Finitomata
  def on_failure(_event, _event_payload, _state) do
    :ok
  end
  <% end %>

  <%= if :on_terminate in @to_implement do %>
  @impl Finitomata
  def on_terminate(_state) do
    :ok
  end
  <% end %>
end