defmodule Mobilizon.Web.ConnCase do
  @moduledoc """
  This module defines the test case to be used by
  tests that require setting up a connection.

  Such tests rely on `Phoenix.ConnTest` and also
  import other functionality to make it easier
  to build common datastructures and query the data layer.

  Finally, if the test case interacts with the database,
  it cannot be async. For this reason, every test runs
  inside a transaction which is reset at the beginning
  of the test unless the test case is marked as async.
  """

  use ExUnit.CaseTemplate

  alias Ecto.Adapters.SQL.Sandbox, as: Adapter

  alias Mobilizon.Storage.Repo

  alias Mobilizon.Web.Auth

  using do
    quote do
      # Import conveniences for testing with connections
      import Plug.Conn
      import Phoenix.ConnTest

      import Mobilizon.Web.Router.Helpers

      use Mobilizon.Web, :verified_routes

      # The default endpoint for testing
      @endpoint Mobilizon.Web.Endpoint

      def auth_conn(%Plug.Conn{} = conn, user) do
        {:ok, token, _claims} = Auth.Guardian.encode_and_sign(user)

        conn
        |> Plug.Conn.put_req_header("authorization", "Bearer #{token}")
        |> Plug.Conn.put_req_header("accept", "application/json")
      end

      @spec set_token(Plug.Conn.t(), String.t()) :: Plug.Conn.t()
      def set_token(%Plug.Conn{} = conn, token) do
        conn
        |> Plug.Conn.put_req_header("authorization", "Bearer #{token}")
        |> Plug.Conn.put_req_header("accept", "application/json")
      end
    end
  end

  setup tags do
    :ok = Adapter.checkout(Repo)

    unless tags[:async], do: Adapter.mode(Repo, {:shared, self()})

    {:ok, conn: Phoenix.ConnTest.build_conn()}
  end
end
