142 lines
4.0 KiB
Rust
142 lines
4.0 KiB
Rust
use std::sync::Arc;
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use async_trait::async_trait;
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use automation_lib::config::MqttDeviceConfig;
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use automation_lib::device::{Device, LuaDeviceCreate};
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use automation_lib::event::{self, Event, EventChannel, OnMqtt};
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use automation_lib::messages::PowerMessage;
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use automation_lib::mqtt::WrappedAsyncClient;
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use automation_lib::ntfy::{Notification, Priority};
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use automation_macro::LuaDeviceConfig;
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use rumqttc::Publish;
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use tokio::sync::{RwLock, RwLockReadGuard, RwLockWriteGuard};
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use tracing::{debug, error, trace, warn};
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#[derive(Debug, Clone, LuaDeviceConfig)]
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pub struct Config {
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pub identifier: String,
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#[device_config(flatten)]
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pub mqtt: MqttDeviceConfig,
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// Power in Watt
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pub threshold: f32,
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#[device_config(rename("event_channel"), from_lua, with(|ec: EventChannel| ec.get_tx()))]
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pub tx: event::Sender,
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#[device_config(from_lua)]
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pub client: WrappedAsyncClient,
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}
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#[derive(Debug)]
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pub struct State {
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running: isize,
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}
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// TODO: Add google home integration
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#[derive(Debug, Clone)]
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pub struct Washer {
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config: Config,
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state: Arc<RwLock<State>>,
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}
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impl Washer {
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async fn state(&self) -> RwLockReadGuard<State> {
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self.state.read().await
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}
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async fn state_mut(&self) -> RwLockWriteGuard<State> {
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self.state.write().await
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}
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}
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#[async_trait]
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impl LuaDeviceCreate for Washer {
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type Config = Config;
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type Error = rumqttc::ClientError;
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async fn create(config: Self::Config) -> Result<Self, Self::Error> {
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trace!(id = config.identifier, "Setting up Washer");
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config
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.client
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.subscribe(&config.mqtt.topic, rumqttc::QoS::AtLeastOnce)
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.await?;
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let state = State { running: 0 };
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let state = Arc::new(RwLock::new(state));
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Ok(Self { config, state })
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}
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}
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impl Device for Washer {
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fn get_id(&self) -> String {
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self.config.identifier.clone()
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}
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}
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// The washer needs to have a power draw above the threshold multiple times before the washer is
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// actually marked as running
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// This helps prevent false positives
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const HYSTERESIS: isize = 10;
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#[async_trait]
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impl OnMqtt for Washer {
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async fn on_mqtt(&self, message: Publish) {
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if !rumqttc::matches(&message.topic, &self.config.mqtt.topic) {
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return;
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}
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let power = match PowerMessage::try_from(message) {
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Ok(state) => state.power(),
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Err(err) => {
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error!(
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id = self.config.identifier,
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"Failed to parse message: {err}"
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);
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return;
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}
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};
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// debug!(id = self.identifier, power, "Washer state update");
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if power < self.config.threshold && self.state().await.running >= HYSTERESIS {
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// The washer is done running
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debug!(
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id = self.config.identifier,
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power,
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threshold = self.config.threshold,
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"Washer is done"
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);
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self.state_mut().await.running = 0;
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let notification = Notification::new()
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.set_title("Laundy is done")
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.set_message("Don't forget to hang it!")
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.add_tag("womans_clothes")
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.set_priority(Priority::High);
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if self
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.config
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.tx
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.send(Event::Ntfy(notification))
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.await
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.is_err()
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{
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warn!("There are no receivers on the event channel");
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}
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} else if power < self.config.threshold {
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// Prevent false positives
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self.state_mut().await.running = 0;
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} else if power >= self.config.threshold && self.state().await.running < HYSTERESIS {
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// Washer could be starting
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debug!(
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id = self.config.identifier,
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power,
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threshold = self.config.threshold,
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"Washer is starting"
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);
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self.state_mut().await.running += 1;
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}
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}
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}
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