defmodule VishnyaWeb.Plugs.Authenticate do
  import Plug.Conn
  alias Vishnya.Repo
  alias Vishnya.Accounts.User

  def init(default), do: default

  def call(conn, _default) do
    case get_req_header(conn, "authorization") do
      ["Bearer " <> token] ->
        case authenticate_token(token) do
          nil ->
            conn
            |> send_resp(401, "Unauthorized")
            |> halt()

          user ->
            assign(conn, :user, user)
        end

      _ ->
        conn
        |> send_resp(401, "Unauthorized")
        |> halt()
    end
  end

  defp authenticate_token(token) do
    Repo.get_by(User, token: token)
  end
end