defmodule FileProcessor do
  @moduledoc """
  Documentation for `FileProcessor`.
  """

  use GenServer

  # Client

  @server FileProcessor.Server

  def start_link(initial_values) do
    GenServer.start_link(__MODULE__, initial_values, name: @server)
  end

  def put_file({filename, contents}) do
    GenServer.call(@server, {:put_file, filename, contents})
  end

  def get_files() do
    GenServer.call(@server, :get_files)
  end

  def delete_file(filename) do
    GenServer.call(@server, {:delete_file, filename})
  end

  def put_rfp({filename, contents}) do
    GenServer.call(@server, {:put_rfp, filename, contents})
  end

  def get_rfp() do
    GenServer.call(@server, :get_rfp)
  end

  def delete_rfp(filename) do
    GenServer.call(@server, {:delete_rfp, filename})
  end

  def process_files() do
    GenServer.call(@server, :process_files)
  end

  # Server

  alias FileProcessor.Impl

  @impl true
  def init(initial_values) do
    Impl.do_init()
    {:ok, initial_values}
  end

  @impl true
  def handle_call({:put_file, {filename, file}}, _from, current_state) do
    {:reply, Impl.put_file(filename, file), current_state}
  end

  @impl true
  def handle_call(:get_files, _from, current_state) do
    {:reply, Impl.get_files(), current_state}
  end

  @impl true
  def handle_call({:delete_file, filename}, _from, current_state) do
    {:reply, Impl.delete_file(filename), current_state}
  end

  @impl true
  def handle_call({:put_rfp, {filename, file}}, _from, current_state) do
    {:reply, Impl.put_rfp(filename, file), current_state}
  end

  @impl true
  def handle_call(:get_rfp, _from, current_state) do
    {:reply, Impl.get_rfp(), current_state}
  end

  @impl true
  def handle_call({:delete_rfp, filename}, _from, current_state) do
    {:reply, Impl.delete_rfp(filename), current_state}
  end

  @impl true
  def handle_call(:process_files, _from, current_state) do
    {:reply, Impl.process_files(), current_state}
  end
end