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Elixir Z-Wave library
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lib/grizzly/command_class/time_parameters/set.ex
defmodule Grizzly.CommandClass.TimeParameters.Set do
@moduledoc """
Command module for working with TIME_PARAMETERS SET command
command options:
* `:year` - Year in the usual Gregorian calendar
* `:month` - Month of the year between 01 (January) and 12 (December)
* `:day` - Day of the month between 01 and 31
* `:hour` - Number of complete hours that have passed since midnight (00..23) in UTC
* `:minute` - Number of complete minutes that have passed since the start of the hour (00..59) in UTC
* `:second` - Number of complete seconds since the start of the minute (00..59) in UTC
* `:seq_number` - The sequence number for the Z/IP Packet
* `:retries` - The number times to retry to send the command (default 2)
"""
@behaviour Grizzly.Command
alias Grizzly.Packet
alias Grizzly.CommandClass.TimeParameters
@type t :: %__MODULE__{
seq_number: Grizzly.seq_number(),
retries: non_neg_integer(),
value: TimeParameters.date_time()
}
@type opt ::
{:seq_number, Grizzly.seq_number()}
| {:retries, non_neg_integer()}
| {:value, TimeParameters.date_time()}
defstruct seq_number: nil, retries: 2, value: nil
@spec init([opt]) :: {:ok, t}
def init(opts) do
{:ok, struct(__MODULE__, opts)}
end
@spec encode(t) :: {:ok, binary}
def encode(%__MODULE__{
value: %{
year: year,
month: month,
day: day,
hour: hour,
minute: minute,
second: second
},
seq_number: seq_number
}) do
binary =
Packet.header(seq_number) <>
<<
0x8B,
0x01,
year::size(16),
month::size(8),
day::size(8),
hour::size(8),
minute::size(8),
second::size(8)
>>
{:ok, binary}
end
@spec handle_response(t, Packet.t()) ::
{:continue, t}
| {:done, {:error, :nack_response}}
| {:done, TimeParameters.date_time()}
| {:retry, t}
def handle_response(
%__MODULE__{seq_number: seq_number} = _command,
%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(
_,
%Packet{
body: %{
command_class: :time_parameters,
command: :report,
value: value
}
}
) do
{:done, {:ok, value}}
end
def handle_response(command, _), do: {:continue, command}
end