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Elixir Z-Wave library
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lib/grizzly/zwave/command_classes/mailbox.ex
defmodule Grizzly.ZWave.CommandClasses.Mailbox do
@moduledoc """
Mailbox Command Class
See Sections 5.2.3 and 5.2.4 of the Z-Wave Specification.
"""
import Bitwise
@behaviour Grizzly.ZWave.CommandClass
@type mode :: :disabled | :service | :proxy
@type supported_mode :: :service | :proxy
@impl Grizzly.ZWave.CommandClass
def byte(), do: 0x69
@impl Grizzly.ZWave.CommandClass
def name(), do: :mailbox
@spec encode_mode(mode()) :: 0..2
def encode_mode(:disabled), do: 0x00
def encode_mode(:service), do: 0x01
def encode_mode(:proxy), do: 0x02
@spec decode_mode(0..2) :: mode()
def decode_mode(0x00), do: :disabled
def decode_mode(0x01), do: :service
def decode_mode(0x02), do: :proxy
@doc """
Encodes a list of supported modes into a single byte.
## Examples
iex> encode_supported_modes([:service, :proxy])
3
iex> encode_supported_modes([:proxy])
2
iex> encode_supported_modes([:service])
1
iex> encode_supported_modes([])
0
"""
@spec encode_supported_modes([supported_mode()]) :: 0..3
def encode_supported_modes(modes) do
modes
|> Enum.map(&encode_mode/1)
|> Enum.reduce(0, fn mode, acc -> acc ||| mode end)
end
@doc """
Encodes a list of supported modes from a single byte.
## Examples
iex> decode_supported_modes(3)
[:service, :proxy]
iex> decode_supported_modes(2)
[:proxy]
iex> decode_supported_modes(1)
[:service]
iex> decode_supported_modes(0)
[]
"""
@spec decode_supported_modes(0..3) :: [supported_mode()]
def decode_supported_modes(3), do: [:service, :proxy]
def decode_supported_modes(2), do: [:proxy]
def decode_supported_modes(1), do: [:service]
def decode_supported_modes(0), do: []
end