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lib/grizzly/command_class/thermostat_mode/set.ex

defmodule Grizzly.CommandClass.ThermostatMode.Set do
@moduledoc """
Command module for working with ThermostatMode command class SET command
Command Options:
* `:mode` - The mode of the thermostat: `:off`, `:heat`, `:cool`, `:auto`, or byte
* `:seq_number` - The sequence number of the Z/IP Packet
* `:retries` - The number of times to try to send the command (default 2)
"""
@behaviour Grizzly.Command
alias Grizzly.Packet
alias Grizzly.Command.{EncodeError, Encoding}
alias Grizzly.CommandClass.ThermostatMode
@type t :: %__MODULE__{
mode: ThermostatMode.mode(),
seq_number: Grizzly.seq_number(),
retries: non_neg_integer()
}
@type opt ::
{:mode, ThermostatMode.mode()}
| {:seq_number, Grizzly.seq_number()}
| {:retries, non_neg_integer()}
defstruct mode: nil, seq_number: nil, retries: 2
@spec init([opt]) :: {:ok, t}
def init(opts) do
{:ok, struct(__MODULE__, opts)}
end
@spec encode(t) :: {:ok, binary} | {:error, EncodeError.t()}
def encode(%__MODULE__{mode: _mode, seq_number: seq_number} = command) do
with {:ok, encoded} <-
Encoding.encode_and_validate_args(command, %{
mode: {:encode_with, ThermostatMode, :encode_mode}
}) do
binary = Packet.header(seq_number) <> <<0x40, 0x01, encoded.mode>>
{:ok, binary}
end
end
@spec handle_response(t, Packet.t()) ::
{:continue, t} | {:done, {:error, :nack_response}} | {:done, :ok}
def handle_response(%__MODULE__{seq_number: seq_number}, %Packet{
seq_number: seq_number,
types: [:ack_response]
}) do
{:done, :ok}
end
def handle_response(%__MODULE__{seq_number: seq_number, retries: 0}, %Packet{
seq_number: seq_number,
types: [:nack_response]
}) do
{:done, {:error, :nack_response}}
end
def handle_response(%__MODULE__{seq_number: seq_number, retries: n} = command, %Packet{
seq_number: seq_number,
types: [:nack_response]
}) do
{:retry, %{command | retries: n - 1}}
end
def handle_response(command, _), do: {:continue, command}
end