124 lines
2.8 KiB
Elixir
124 lines
2.8 KiB
Elixir
defmodule WeewxProxy.Modbus.Deye do
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@moduledoc false
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require Logger
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use Tortoise311.Handler
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alias WeewxProxy.{Publisher, Utils}
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# Callbacks
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@impl true
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def init(_opts) do
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_ = Logger.info("Initializing handler")
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{:ok, nil}
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end
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@impl true
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def connection(:up, state) do
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_ = Logger.info("Connection has been established")
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{:ok, state}
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end
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@impl true
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def connection(:down, state) do
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_ = Logger.warning("Connection has been dropped")
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{:ok, state}
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end
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@impl true
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def connection(:terminating, state) do
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_ = Logger.warning("Connection is terminating")
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{:ok, state}
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end
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@impl true
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def subscription(:up, topic, state) do
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_ = Logger.info("Subscribed to `#{topic}'")
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{:ok, state}
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end
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@impl true
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def subscription({:warn, [requested: req, accepted: qos]}, topic, state) do
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_ = Logger.warning("Subscribed to `#{topic}'; requested #{req} but got accepted with QoS #{qos}")
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{:ok, state}
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end
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@impl true
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def subscription({:error, reason}, topic, state) do
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_ = Logger.error("Error subscribing to `#{topic}'; #{inspect(reason)}")
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{:ok, state}
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end
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@impl true
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def subscription(:down, topic, state) do
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_ = Logger.info("Unsubscribed from `#{topic}'")
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{:ok, state}
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end
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@impl true
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def handle_message(topic, publish, state) do
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full_topic = Enum.join(topic, "/")
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parsed_message = parse_message(full_topic, publish)
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state = handle_reading(full_topic, parsed_message, state)
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{:ok, state}
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end
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@impl true
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def terminate(reason, _state) do
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_ = Logger.warning("Client has been terminated with reason: `#{inspect(reason)}'")
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:ok
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end
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# Helper
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@spec parse_message(String.t(), String.t()) :: float() | nil
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defp parse_message(topic, message) when topic in ["deye/day_energy", "deye/ac/active_power"] do
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Utils.parse_float(message)
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end
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defp parse_message(_topic, _message), do: nil
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@spec handle_reading(String.t(), float() | nil, {:day | :active, float()}) :: {:day | :active, float()} | nil
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defp handle_reading(_topic, nil, state), do: state
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defp handle_reading("deye/day_energy", reading, {:active, active}) do
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timestamp = DateTime.utc_now() |> DateTime.to_unix()
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data = %{
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dateTime: timestamp,
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solarEnergyDay: reading * 1000.0,
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solarEnergyActive: active
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}
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:ok = Publisher.publish("weewx/ingest_si", data)
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nil
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end
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defp handle_reading("deye/day_energy", reading, _other) do
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{:day, reading}
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end
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defp handle_reading("deye/ac/active_power", reading, {:day, day}) do
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timestamp = DateTime.utc_now() |> DateTime.to_unix()
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data = %{
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dateTime: timestamp,
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solarEnergyDay: day * 1000.0,
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solarEnergyActive: reading
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}
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:ok = Publisher.publish("weewx/ingest_si", data)
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nil
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end
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defp handle_reading("deye/ac/active_power", reading, _other) do
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{:active, reading}
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end
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end
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