defmodule Grizzly.ZWave.Commands.VersionCommandClassReport do
@moduledoc """
Reports the command class version for a device
Params:
* `:command_class` - the name of the command class the report is for
(required)
* `:version` - the version of the command class in the report (required)
"""
@behaviour Grizzly.ZWave.Command
alias Grizzly.ZWave.{Command, CommandClasses, DecodeError}
alias Grizzly.ZWave.CommandClasses.Version
@type param :: {:command_class, CommandClasses.command_class()} | {:version, byte()}
@impl true
@spec new([param()]) :: {:ok, Command.t()}
def new(params) do
command = %Command{
name: :version_command_class_report,
command_byte: 0x14,
command_class: Version,
params: params,
impl: __MODULE__
}
{:ok, command}
end
@impl true
@spec encode_params(Command.t()) :: binary()
def encode_params(command) do
cc = Command.param!(command, :command_class)
<<CommandClasses.to_byte(cc), Command.param!(command, :version)>>
end
@impl true
@spec decode_params(binary()) :: {:ok, [param()]} | {:error, DecodeError.t()}
def decode_params(<<cc_byte, version>>) do
case CommandClasses.from_byte(cc_byte) do
{:ok, cc} ->
{:ok, [command_class: cc, version: version]}
{:error, _} ->
{:error,
%DecodeError{
value: cc_byte,
param: :command_class,
command: :version_command_class_report
}}
end
end
end