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version_command_class_get.ex
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version_command_class_get.ex
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defmodule Grizzly.ZWave.Commands.VersionCommandClassGet do
@moduledoc """
This module implements command VERSION_COMMAND_CLASS_GET of command class COMMAND_CLASS_VERSION
Params:
* `:command_class` - the atom name of a command class (required)
"""
@behaviour Grizzly.ZWave.Command
alias Grizzly.ZWave.{Command, CommandClasses, DecodeError}
alias Grizzly.ZWave.CommandClasses.Version
@type param :: {:command_class, atom}
@impl true
@spec new([param()]) :: {:ok, Command.t()}
def new(params) do
command = %Command{
name: :version_command_class_get,
command_byte: 0x13,
command_class: Version,
params: params,
impl: __MODULE__
}
{:ok, command}
end
@impl true
def encode_params(command) do
cc = Command.param!(command, :command_class)
<<CommandClasses.to_byte(cc)>>
end
@impl true
@spec decode_params(binary()) :: {:ok, [param()]} | {:error, DecodeError.t()}
def decode_params(<<cc_byte>>) do
case CommandClasses.from_byte(cc_byte) do
{:ok, cc} ->
{:ok, command_class: cc}
{:error, _} ->
{:error,
%DecodeError{value: cc_byte, param: :command_class, command: :version_command_class_get}}
end
end
end