defmodule Grizzly.ZWave.Commands.BarrierOperatorSignalGet do
@moduledoc """
This command is used to request the state of a signaling subsystem to a supporting node.
Params:
* `:subsystem_type` - This field is used to indicate which type of subsystem
"""
@behaviour Grizzly.ZWave.Command
alias Grizzly.ZWave.{Command, DecodeError}
alias Grizzly.ZWave.CommandClasses.BarrierOperator
@type param :: {:subsystem_type, BarrierOperator.subsystem_type()}
@impl Grizzly.ZWave.Command
@spec new([param()]) :: {:ok, Command.t()}
def new(params) do
command = %Command{
name: :barrier_operator_signal_get,
command_byte: 0x07,
command_class: BarrierOperator,
params: params,
impl: __MODULE__
}
{:ok, command}
end
@impl Grizzly.ZWave.Command
@spec encode_params(Command.t()) :: binary()
def encode_params(command) do
subsystem_type = Command.param!(command, :subsystem_type)
byte = BarrierOperator.subsystem_type_to_byte(subsystem_type)
<<byte>>
end
@impl Grizzly.ZWave.Command
@spec decode_params(binary()) :: {:ok, [param()]} | {:error, DecodeError.t()}
def decode_params(<<subsystem_byte>>) do
case BarrierOperator.subsystem_type_from_byte(subsystem_byte) do
{:error, %DecodeError{} = decode_error} ->
{:error,
%DecodeError{
decode_error
| command: :barrier_operator_signal_get
}}
{:ok, subsystem_type} ->
{:ok, [subsystem_type: subsystem_type]}
end
end
end