defmodule Grizzly.ZWave.Commands.AssociationGroupInfoGet do
@moduledoc """
This command is used to request the properties of one or more association
group.
Params:
* `:refresh_cache` - Whether to refresh cached info
* `:all` - Get info on all assocation groups
* `:group_id` - get info on this association group (required if `all` is
false)
"""
@behaviour Grizzly.ZWave.Command
alias Grizzly.ZWave.Command
alias Grizzly.ZWave.CommandClasses.AssociationGroupInfo
@type param :: {:all, boolean} | {:refresh_cache, boolean} | {:group_id, byte}
@impl true
@spec new([param()]) :: {:ok, Command.t()}
def new(params) do
command = %Command{
name: :association_group_info_get,
command_byte: 0x03,
command_class: AssociationGroupInfo,
params: params,
impl: __MODULE__
}
{:ok, command}
end
@impl true
def encode_params(command) do
all? = Command.param!(command, :all)
all_bit = if all?, do: 0x01, else: 0x00
refresh_cache? = Command.param!(command, :refresh_cache)
refresh_cache_bit = if refresh_cache?, do: 0x01, else: 0x00
group_id = Command.param(command, :group_id, 0)
<<refresh_cache_bit::size(1), all_bit::size(1), 0x00::size(6), group_id>>
end
@impl true
def decode_params(<<refresh_cache_bit::size(1), all_bit::size(1), 0x00::size(6), group_id>>) do
{:ok, [refresh_cache: refresh_cache_bit == 0x01, all: all_bit == 0x01, group_id: group_id]}
end
end