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grizzly
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Elixir Z-Wave library
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lib/grizzly/controller.ex
defmodule Grizzly.Controller do
@moduledoc """
This module is for Z-Wave controller level operations.
That mostly having to handle network related calls like
adding/removing a node, getting nodes' IP, listing nodes,
and etc.
"""
use GenServer
require Logger
alias Grizzly
alias Grizzly.{Conn, Notifications}
alias Grizzly.Conn.Config
alias Grizzly.Network.State, as: NetworkState
defmodule State do
@moduledoc false
defstruct conn: nil
end
@spec start_link(Config.t()) :: GenServer.on_start()
def start_link(grizzly) do
GenServer.start_link(__MODULE__, grizzly, name: __MODULE__)
end
@doc """
Check to see if the connection is connected to
the gateway server.
"""
@spec connected?() :: boolean
def connected?() do
GenServer.call(__MODULE__, :connected?)
end
@spec conn() :: Conn.t()
def conn() do
GenServer.call(__MODULE__, :conn)
end
@doc "Get the connection but set to the given mode"
@spec conn(Config.mode()) :: Conn.t()
def conn(mode) do
GenServer.call(__MODULE__, {:conn, mode})
end
@impl true
def init(conn_config) do
_ = Notifications.subscribe(:connection_established)
conn = Conn.open(conn_config)
{:ok, %State{conn: conn}}
end
@impl true
def handle_call(:connected?, _from, %State{conn: conn} = state) when conn in [nil, false] do
{:reply, false, state}
end
def handle_call(:connected?, _from, %State{conn: conn} = state) do
{:reply, Conn.connected?(conn), state}
end
def handle_call(:conn, _from, %State{conn: conn} = state) do
{:reply, conn, state}
end
def handle_call({:conn, mode}, _from, %State{conn: conn} = state) do
{:reply, Conn.override_mode(conn, mode), state}
end
@impl true
def handle_info(
{:connection_established, %Config{ip: ip}},
%State{conn: %Conn{ip_address: ip}} = state
) do
NetworkState.set(:idle)
Notifications.broadcast(:controller_connected)
{:noreply, state}
end
def handle_info(_, state), do: {:noreply, state}
end