defmodule CustomerServiceWeb.Plugs.RequireOrganizationId do
  @moduledoc """
  Ensure `X-Organization-Id` header is provided.

  This plug must be used after `CustomerServiceWeb.Plugs.ExtractOrganizationId`.
  """

  @behaviour Plug

  import Plug.Conn, only: [get_req_header: 2, halt: 1, send_resp: 3]

  @impl Plug
  def init(_opts), do: %{}

  @impl Plug
  def call(conn, _opts) do
    case get_req_header(conn, "x-organization-id") do
      [] ->
        conn
        |> halt()
        |> send_resp(:bad_request, "The organization id is required")

      [_org_id] ->
        conn
    end
  end
end