commit

Cargo.lock

@@ -184,15 +184,15 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.31"
+version = "0.4.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f2c685bad3eb3d45a01354cedb7d5faa66194d1d58ba6e267a8de788f79db38"
+checksum = "5bc015644b92d5890fab7489e49d21f879d5c990186827d42ec511919404f38b"
 dependencies = [
  "android-tzdata",
  "iana-time-zone",
  "num-traits",
  "serde",
- "windows-targets 0.48.5",
+ "windows-targets 0.52.0",
 ]
 
 [[package]]
@@ -2004,6 +2004,20 @@ dependencies = [
  "time-core",
 ]
 
+[[package]]
+name = "timer"
+version = "0.1.0"
+dependencies = [
+ "clap",
+ "color-eyre",
+ "deckster_mode",
+ "env_logger",
+ "humantime-serde",
+ "log",
+ "serde",
+ "tokio",
+]
+
 [[package]]
 name = "tiny-skia"
 version = "0.11.3"

README.md

@@ -3,6 +3,8 @@
 - Move loupedeck_serial and pa_volume_interface out of this repository.
 - Publish libraries to crates.io
 - Move handlers to their own repositories
+- Update dependencies
+- Make the CLI of handlers more useful
 
 ## Contributing
 ### Terminology

crates/deckster_shared/src/handler_communication.rs

@@ -47,9 +47,43 @@ pub enum HandlerEvent {
     Key { path: KeyPath, event: KeyEvent },
 }
 
+#[derive(Debug, PartialEq, Clone, Copy, Serialize, Deserialize)]
+#[serde(rename_all = "kebab-case")]
+pub enum VibrationPattern {
+    Short,
+    Medium,
+    Long,
+    Low,
+    ShortLow,
+    ShortLower,
+    Lower,
+    Lowest,
+    DescendSlow,
+    DescendMed,
+    DescendFast,
+    AscendSlow,
+    AscendMed,
+    AscendFast,
+    RevSlowest,
+    RevSlow,
+    RevMed,
+    RevFast,
+    RevFaster,
+    RevFastest,
+    RiseFall,
+    Buzz,
+    Rumble5,
+    Rumble4,
+    Rumble3,
+    Rumble2,
+    Rumble1,
+    VeryLong,
+}
+
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize)]
 #[serde(tag = "command", rename_all = "kebab-case")]
 pub enum HandlerCommand {
+    Vibrate { pattern: VibrationPattern },
     SetKeyStyle { path: KeyPath, value: Option<KeyStyle> },
     SetKnobStyle { path: KnobPath, value: Option<KnobStyle> },
     SetKnobValue { path: KnobPath, value: Option<f32> },

examples/full/key-pages/default.toml

@@ -1,7 +1,6 @@
 [keys.1x2]
 icon = "@ph/skip-back"
 
-host = "remote"
 handler = "playerctl"
 config.mode = "previous"
 config.style.inactive.icon = "@ph/skip-back[alpha=0.4]"
@@ -9,7 +8,6 @@ config.style.inactive.icon = "@ph/skip-back[alpha=0.4]"
 [keys.2x2]
 icon = "@ph/play-pause[alpha=0.4]"
 
-host = "remote"
 handler = "playerctl"
 config.mode = "play-pause"
 config.style.paused.icon = "@ph/play"
@@ -18,7 +16,6 @@ config.style.playing.icon = "@ph/pause"
 [keys.3x2]
 icon = "@ph/skip-forward"
 
-host = "remote"
 handler = "playerctl"
 config.mode = "next"
 config.style.inactive.icon = "@ph/skip-forward[alpha=0.4]"
@@ -26,7 +23,6 @@ config.style.inactive.icon = "@ph/skip-forward[alpha=0.4]"
 [keys.1x3]
 icon = "@fad/shuffle[alpha=0.4]"
 
-host = "remote"
 handler = "playerctl"
 config.mode = "shuffle"
 config.style.on.icon = "@fad/shuffle[color=#58fc11]"
@@ -34,20 +30,24 @@ config.style.on.icon = "@fad/shuffle[color=#58fc11]"
 [keys.2x3]
 icon = "@fad/repeat[alpha=0.4]"
 
-host = "remote"
 handler = "playerctl"
 config.mode = "loop"
 config.style.single.icon = "@fad/repeat-one[color=#58fc11]"
 config.style.all.icon = "@fad/repeat[color=#58fc11]"
 
 [keys.3x3]
-icon = "@ph/timer[color=#ff0000]"
+icon = "@ph/timer[scale=0.9]"
 
-host = "moira"
 handler = "timer"
-config.durations = ["60s", "5m", "10m", "15m", "30m"]
+config.durations = ["5s"]
+config.select_timeout = "1500ms"
+config.alarm_timeout = "10s"
 config.vibrate_when_finished = true
-config.needy = true
+config.alarm_style_switch_interval = "200ms"
+config.style.alarm1.border = "#ff0000ff"
+config.style.alarm1.label = "00:00"
+config.style.alarm2.border = "#ff00000f"
+config.style.alarm2.label = "00:00"
 
 [keys.4x3]
 icon = "@ph/computer-tower"

handlers/timer/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "timer"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+deckster_mode = { path = "../../crates/deckster_mode" }
+clap = { version = "4.4.18", features = ["derive"] }
+color-eyre = "0.6.2"
+env_logger = "0.11.1"
+log = "0.4.20"
+tokio = { version = "1.35.1", features = ["macros", "parking_lot", "rt", "sync", "time"] }
+serde = { version = "1.0.196", features = ["derive"] }
+humantime-serde = "1.1.1"

handlers/timer/src/handler.rs

@@ -0,0 +1,269 @@
+use crate::util::{format_duration, get_far_future, spawn_debouncer};
+use deckster_mode::shared::handler_communication::{
+    HandlerCommand, HandlerEvent, HandlerInitializationError, InitialHandlerMessage, KeyEvent, VibrationPattern,
+};
+use deckster_mode::shared::path::KeyPath;
+use deckster_mode::shared::state::KeyStyleByStateMap;
+use deckster_mode::{send_command, DecksterHandler};
+use serde::Deserialize;
+use std::thread;
+use std::time::{Duration, Instant};
+use tokio::sync::broadcast::Receiver;
+use tokio::sync::{broadcast, mpsc};
+use tokio::task::LocalSet;
+use tokio::time::{interval, interval_at, MissedTickBehavior};
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct KeyConfig {
+    durations: Box<[humantime_serde::Serde<Duration>]>,
+    #[serde(with = "humantime_serde")]
+    select_timeout: Duration,
+    #[serde(with = "humantime_serde")]
+    alarm_timeout: Duration,
+    vibrate_when_finished: bool,
+    #[serde(with = "humantime_serde")]
+    alarm_style_switch_interval: Duration,
+    #[serde(default)]
+    style: KeyStyleByStateMap<KeyStyleState>,
+}
+
+#[derive(Debug, Clone, Deserialize, PartialEq, Eq, Hash)]
+#[serde(rename_all = "kebab-case")]
+enum KeyStyleState {
+    Inactive,
+    Selection,
+    Running,
+    Paused,
+    Alarm1,
+    Alarm2,
+}
+
+pub struct Handler {
+    events_sender: broadcast::Sender<(KeyPath, KeyEvent)>,
+}
+
+impl Handler {
+    pub fn new(data: InitialHandlerMessage<KeyConfig, ()>) -> Result<Self, HandlerInitializationError> {
+        let events_sender = broadcast::Sender::<(KeyPath, KeyEvent)>::new(5);
+
+        thread::spawn({
+            let events_sender = events_sender.clone();
+
+            move || {
+                let runtime = tokio::runtime::Builder::new_current_thread().enable_time().build().unwrap();
+                let task_set = LocalSet::new();
+
+                let (vibration_active_sender, mut vibration_active_receiver) = mpsc::channel::<bool>(2);
+                task_set.spawn_local(async move {
+                    let mut active_count = 0usize;
+
+                    let mut interval = tokio::time::interval(Duration::from_secs(2));
+                    interval.set_missed_tick_behavior(MissedTickBehavior::Delay);
+
+                    loop {
+                        tokio::select! {
+                            biased; // Important! Always first drain the channel before actually doing something.
+
+                            result = vibration_active_receiver.recv() => {
+                                match result {
+                                    None => break,
+                                    Some(false) => active_count -= 1,
+                                    Some(true) => {
+                                        active_count += 1;
+
+                                        if active_count == 1 {
+                                            interval.reset_immediately()
+                                        }
+                                    },
+                                }
+                            }
+
+                            _ = interval.tick(), if active_count > 0 => {
+                                send_command(HandlerCommand::Vibrate { pattern: VibrationPattern::Long })
+                            }
+                        }
+                    }
+                });
+
+                for (path, config) in data.key_configs {
+                    task_set.spawn_local(manage_key(events_sender.subscribe(), vibration_active_sender.clone(), path, config));
+                }
+
+                runtime.block_on(task_set)
+            }
+        });
+
+        Ok(Handler { events_sender })
+    }
+}
+
+impl DecksterHandler for Handler {
+    fn handle(&mut self, event: HandlerEvent) {
+        if let HandlerEvent::Key { path, event } = event {
+            // No receivers being available can be ignored.
+            _ = self.events_sender.send((path, event));
+        }
+    }
+}
+
+#[derive(Debug, PartialEq)]
+enum KeyStage {
+    Inactive,
+    Selection { selected_index: usize },
+    Running { duration: Duration },
+    Paused { duration: Duration },
+    Alarm,
+}
+
+#[derive(Debug)]
+struct KeyState {
+    stage_change_time: Instant,
+    stage: KeyStage,
+}
+
+async fn manage_key(mut events: Receiver<(KeyPath, KeyEvent)>, vibration_active_sender: mpsc::Sender<bool>, path: KeyPath, config: KeyConfig) {
+    let mut state = KeyState {
+        stage_change_time: Instant::now(),
+        stage: KeyStage::Inactive,
+    };
+
+    let (reset_timeout_sender, mut select_timeout_receiver) = spawn_debouncer(config.select_timeout);
+
+    let mut display_interval = interval(Duration::from_millis(500));
+    display_interval.set_missed_tick_behavior(MissedTickBehavior::Skip);
+
+    let mut alarm1_interval = interval_at(tokio::time::Instant::now() + Duration::ZERO, config.alarm_style_switch_interval * 2);
+    let mut alarm2_interval = interval_at(
+        tokio::time::Instant::now() + config.alarm_style_switch_interval,
+        config.alarm_style_switch_interval * 2,
+    );
+
+    alarm1_interval.set_missed_tick_behavior(MissedTickBehavior::Skip);
+    alarm2_interval.set_missed_tick_behavior(MissedTickBehavior::Skip);
+
+    let mut alarm_sleep = Box::pin(tokio::time::sleep_until(get_far_future().into()));
+
+    loop {
+        tokio::select! {
+            _ = &mut alarm_sleep => {
+                if state.stage == KeyStage::Alarm {
+                    if config.vibrate_when_finished {
+                        vibration_active_sender.send(false).await.unwrap();
+                    }
+
+                    state.stage = KeyStage::Inactive;
+                    state.stage_change_time = Instant::now();
+                    alarm_sleep.as_mut().reset(get_far_future().into());
+                    send_key_style(&path, &state, &config);
+                } else {
+                    if config.vibrate_when_finished {
+                        vibration_active_sender.send(true).await.unwrap();
+                    }
+
+                    state.stage = KeyStage::Alarm;
+                    state.stage_change_time = Instant::now();
+                    alarm_sleep.as_mut().reset(tokio::time::Instant::now() + config.alarm_timeout);
+                }
+            }
+            _ = display_interval.tick(), if matches!(state.stage, KeyStage::Running { .. } | KeyStage::Paused { .. }) => {
+                send_key_style(&path, &state, &config);
+            }
+            _ = alarm1_interval.tick(), if matches!(state.stage, KeyStage::Alarm) => {
+                send_command(HandlerCommand::SetKeyStyle { path: path.clone(), value: config.style.get(&KeyStyleState::Alarm1).cloned() });
+            }
+            _ = alarm2_interval.tick(), if matches!(state.stage, KeyStage::Alarm) => {
+                send_command(HandlerCommand::SetKeyStyle { path: path.clone(), value: config.style.get(&KeyStyleState::Alarm2).cloned() });
+            }
+            _ = select_timeout_receiver.recv() => {
+                if let KeyStage::Selection { selected_index } = state.stage {
+                    let duration = config.durations[selected_index].into_inner();
+                    alarm_sleep.as_mut().reset(tokio::time::Instant::now() + duration);
+                    state.stage = KeyStage::Running { duration };
+                    state.stage_change_time = Instant::now();
+                    send_key_style(&path, &state, &config);
+                }
+            }
+            Ok((p, event)) = events.recv() => {
+                if p != path {
+                    continue
+                }
+
+                if event == KeyEvent::Press {
+                    match &mut state.stage {
+                        KeyStage::Inactive => {
+                            state.stage = KeyStage::Selection { selected_index: 0 };
+                            _ = reset_timeout_sender.try_send(());
+                        }
+                        KeyStage::Selection { selected_index } => {
+                            *selected_index = selected_index.wrapping_add(1) % config.durations.len();
+                            _ = reset_timeout_sender.try_send(());
+                        }
+                        KeyStage::Running { duration } => {
+                            state.stage = KeyStage::Paused { duration: *duration - state.stage_change_time.elapsed() };
+                        }
+                        KeyStage::Paused { duration } => {
+                            alarm_sleep.as_mut().reset(tokio::time::Instant::now() + *duration);
+                            state.stage = KeyStage::Running { duration: *duration };
+                        }
+                        KeyStage::Alarm => {
+                            if config.vibrate_when_finished {
+                                vibration_active_sender.send(false).await.unwrap();
+                            }
+
+                            state.stage = KeyStage::Inactive;
+                            state.stage_change_time = Instant::now();
+                            alarm_sleep.as_mut().reset(get_far_future().into());
+                            send_command(HandlerCommand::SetKeyStyle { path: path.clone(), value: config.style.get(&KeyStyleState::Inactive).cloned() });
+                        }
+                    }
+
+                    state.stage_change_time = Instant::now();
+                    send_key_style(&path, &state, &config);
+                }
+            }
+        }
+    }
+}
+
+fn send_key_style(path: &KeyPath, state: &KeyState, config: &KeyConfig) {
+    let elapsed = state.stage_change_time.elapsed();
+
+    let style = match state.stage {
+        KeyStage::Inactive => config.style.get(&KeyStyleState::Inactive).cloned(),
+        KeyStage::Selection { selected_index } => {
+            let duration = config.durations[selected_index].into_inner();
+            let mut s = config.style.get(&KeyStyleState::Selection).cloned().unwrap_or_default();
+            s.label = Some(format_duration(duration));
+            Some(s)
+        }
+        KeyStage::Running { duration } => {
+            if elapsed > duration {
+                return;
+            }
+
+            let mut s = config.style.get(&KeyStyleState::Running).cloned().unwrap_or_default();
+            s.label = Some(format_duration(duration - elapsed));
+            Some(s)
+        }
+        KeyStage::Paused { duration } => {
+            if elapsed > duration {
+                return;
+            }
+
+            let mut s = config.style.get(&KeyStyleState::Paused).cloned().unwrap_or_default();
+            s.label = Some(if state.stage_change_time.elapsed().as_millis() % 1000 < 500 {
+                format_duration(duration - state.stage_change_time.elapsed())
+            } else {
+                "".to_owned()
+            });
+
+            Some(s)
+        }
+        KeyStage::Alarm => config.style.get(&KeyStyleState::Alarm1).cloned(),
+    };
+
+    send_command(HandlerCommand::SetKeyStyle {
+        path: path.clone(),
+        value: style,
+    });
+}

handlers/timer/src/main.rs

@@ -0,0 +1,26 @@
+use clap::Parser;
+use color_eyre::Result;
+
+use crate::handler::Handler;
+
+mod handler;
+mod util;
+
+#[derive(Debug, Parser)]
+#[command(name = "timer")]
+enum CliCommand {
+    #[command(name = "deckster-run", hide = true)]
+    Run,
+}
+
+fn main() -> Result<()> {
+    let command = CliCommand::parse();
+
+    match command {
+        CliCommand::Run => {
+            deckster_mode::run(Handler::new)?;
+        }
+    }
+
+    Ok(())
+}

handlers/timer/src/util.rs

@@ -0,0 +1,54 @@
+use std::time::{Duration, Instant};
+use tokio::sync::mpsc;
+use tokio::sync::mpsc::error::TrySendError;
+use tokio::sync::mpsc::{Receiver, Sender};
+use tokio::time::timeout;
+
+/// Sends a message into the output channel after a message in the input channel was received, with a delay of `duration`.
+/// The delay is reset when a new message is reset.
+pub fn spawn_debouncer(duration: Duration) -> (Sender<()>, Receiver<()>) {
+    let (input_sender, mut input_receiver) = mpsc::channel::<()>(1);
+    let (output_sender, output_receiver) = mpsc::channel::<()>(1);
+
+    tokio::spawn(async move {
+        'outer: loop {
+            if input_receiver.recv().await.is_none() {
+                break 'outer;
+            }
+
+            'inner: loop {
+                match timeout(duration, input_receiver.recv()).await {
+                    Ok(None) => break 'outer,
+                    Ok(Some(_)) => continue 'inner,
+                    Err(_) => {
+                        if let Err(TrySendError::Closed(_)) = output_sender.try_send(()) {
+                            break 'outer;
+                        } else {
+                            break 'inner;
+                        }
+                    }
+                }
+            }
+        }
+    });
+
+    (input_sender, output_receiver)
+}
+
+pub fn format_duration(duration: Duration) -> String {
+    let full_seconds = duration.as_secs();
+    let full_minutes = full_seconds / 60;
+    let hours = full_minutes / 60;
+    let minutes = full_minutes % 60;
+    let seconds = full_seconds % 60;
+
+    if hours == 0 {
+        format!("{:0>2}:{:0>2}", minutes, seconds)
+    } else {
+        format!("{:0>2}:{:0>2}:{:0>2}", hours, minutes, seconds)
+    }
+}
+
+pub fn get_far_future() -> Instant {
+    Instant::now() + Duration::from_secs(60 * 60 * 24 * 365 * 30) // 30 years
+}

src/coordinator/io_worker.rs

@@ -7,10 +7,11 @@ use resvg::usvg::tiny_skia_path::IntSize;
 use rgb::RGB8;
 use tokio::sync::broadcast;
 
-use deckster_shared::handler_communication::{HandlerCommand, HandlerEvent, KeyEvent, KeyTouchEventKind, KnobEvent};
+use deckster_shared::handler_communication::{HandlerCommand, HandlerEvent, KeyEvent, KeyTouchEventKind, KnobEvent, VibrationPattern};
 use deckster_shared::path::{KeyPath, KeyPosition, KnobPath, KnobPosition};
 use deckster_shared::state::{Key, Knob};
 use loupedeck_serial::characteristics::{LoupedeckDeviceKeyGridCharacteristics, LoupedeckDisplayRect, LoupedeckKnob};
+use loupedeck_serial::commands::VibrationPattern as LSVibrationPattern;
 use loupedeck_serial::device::LoupedeckDevice;
 use loupedeck_serial::events::{LoupedeckEvent, RotationDirection};
 
@@ -251,6 +252,9 @@ fn handle_handler_command(context: &mut IoWorkerContext, command: HandlerCommand
     log::trace!("Handling handler command: {:?}", &command);
 
     match command {
+        HandlerCommand::Vibrate { pattern } => {
+            context.device.vibrate(map_vibration_pattern(pattern));
+        }
         HandlerCommand::SetKeyStyle { path, value } => {
             context.state.mutate_key_for_command("SetKeyStyle", &path, |k| {
                 k.style = value;
@@ -417,3 +421,36 @@ fn get_position_of_loupedeck_knob(value: LoupedeckKnob) -> KnobPosition {
         LoupedeckKnob::RightBottom => KnobPosition::RightBottom,
     }
 }
+
+fn map_vibration_pattern(value: VibrationPattern) -> LSVibrationPattern {
+    match value {
+        VibrationPattern::Short => LSVibrationPattern::Short,
+        VibrationPattern::Medium => LSVibrationPattern::Medium,
+        VibrationPattern::Long => LSVibrationPattern::Long,
+        VibrationPattern::Low => LSVibrationPattern::Low,
+        VibrationPattern::ShortLow => LSVibrationPattern::ShortLow,
+        VibrationPattern::ShortLower => LSVibrationPattern::ShortLower,
+        VibrationPattern::Lower => LSVibrationPattern::Lower,
+        VibrationPattern::Lowest => LSVibrationPattern::Lowest,
+        VibrationPattern::DescendSlow => LSVibrationPattern::DescendSlow,
+        VibrationPattern::DescendMed => LSVibrationPattern::DescendMed,
+        VibrationPattern::DescendFast => LSVibrationPattern::DescendFast,
+        VibrationPattern::AscendSlow => LSVibrationPattern::AscendSlow,
+        VibrationPattern::AscendMed => LSVibrationPattern::AscendMed,
+        VibrationPattern::AscendFast => LSVibrationPattern::AscendFast,
+        VibrationPattern::RevSlowest => LSVibrationPattern::RevSlowest,
+        VibrationPattern::RevSlow => LSVibrationPattern::RevSlow,
+        VibrationPattern::RevMed => LSVibrationPattern::RevMed,
+        VibrationPattern::RevFast => LSVibrationPattern::RevFast,
+        VibrationPattern::RevFaster => LSVibrationPattern::RevFaster,
+        VibrationPattern::RevFastest => LSVibrationPattern::RevFastest,
+        VibrationPattern::RiseFall => LSVibrationPattern::RiseFall,
+        VibrationPattern::Buzz => LSVibrationPattern::Buzz,
+        VibrationPattern::Rumble5 => LSVibrationPattern::Rumble5,
+        VibrationPattern::Rumble4 => LSVibrationPattern::Rumble4,
+        VibrationPattern::Rumble3 => LSVibrationPattern::Rumble3,
+        VibrationPattern::Rumble2 => LSVibrationPattern::Rumble2,
+        VibrationPattern::Rumble1 => LSVibrationPattern::Rumble1,
+        VibrationPattern::VeryLong => LSVibrationPattern::VeryLong,
+    }
+}

src/coordinator/mqtt.rs

@@ -5,7 +5,7 @@ use rumqttc::{Event, Incoming, LastWill, MqttOptions, QoS};
 use tokio::sync::broadcast;
 
 use crate::coordinator::io_worker::CoordinatorCommand;
-use deckster_shared::handler_communication::{HandlerCommand, HandlerEvent};
+use deckster_shared::handler_communication::{HandlerCommand, HandlerEvent, VibrationPattern};
 use deckster_shared::path::{KeyPath, KeyPosition, KnobPath, KnobPosition};
 use deckster_shared::style::{KeyStyle, KnobStyle};
 
@@ -132,6 +132,13 @@ pub async fn start_mqtt_client(
                                         })
                                         .unwrap();
                                 }
+                                "vibrate" => {
+                                    if let Ok(pattern) = serde_json::from_slice::<VibrationPattern>(&event.payload) {
+                                        handler_commands_sender.send_async(HandlerCommand::Vibrate { pattern }).await.unwrap();
+                                    } else {
+                                        log::error!("Unknown vibration pattern from {}: {}", event.topic, String::from_utf8_lossy(&event.payload));
+                                    }
+                                }
                                 "keys" => {
                                     let page_id = segments[1];
                                     let position = segments[2];

src/coordinator/state.rs

@@ -70,7 +70,11 @@ impl State {
             active_key_page_id: config.initial.key_page.clone(),
             active_knob_page_id: config.initial.knob_page.clone(),
             active_touch_ids: HashSet::new(),
-            active_remote_handler_host_ids: HashSet::new(),
+            active_remote_handler_host_ids: {
+                let mut s = HashSet::new();
+                s.insert("".to_owned().into_boxed_str());
+                s
+            },
             key_pages_by_id,
             knob_pages_by_id,
         }

src/handler_host/mqtt.rs

@@ -65,6 +65,7 @@ pub async fn start_mqtt_client(
                                 is_first_try = false;
 
                                 client.subscribe(format!("{topic_prefix}/config"), QoS::ExactlyOnce).await.unwrap();
+                                client.subscribe(format!("{topic_prefix}/vibrate"), QoS::ExactlyOnce).await.unwrap();
                                 client.subscribe(format!("{topic_prefix}/keys/+/+/events"), QoS::ExactlyOnce).await.unwrap();
                                 client.subscribe(format!("{topic_prefix}/knobs/+/+/events"), QoS::ExactlyOnce).await.unwrap();
                             }
@@ -72,65 +73,68 @@ pub async fn start_mqtt_client(
                                 let topic_name = event.topic;
                                 let topic_segments = topic_name.strip_prefix(&topic_prefix).unwrap().split('/').skip(1).collect::<Vec<&str>>();
 
-                                if topic_segments[0] == "config" {
+                                match topic_segments[0] {
-                                    if let Ok(config) = serde_json::from_slice::<Option<HandlerHostsConfig>>(&event.payload) {
+                                    "config" => {
-                                        if let Some(c) = &config {
+                                        if let Ok(config) = serde_json::from_slice::<Option<HandlerHostsConfig>>(&event.payload) {
-                                            client
+                                            if let Some(c) = &config {
-                                                .publish(activeness_topic.clone(), QoS::AtLeastOnce, true, c.run_id.to_owned().into_boxed_bytes())
+                                                client
-                                                .await
+                                                    .publish(activeness_topic.clone(), QoS::AtLeastOnce, true, c.run_id.to_owned().into_boxed_bytes())
-                                                .unwrap();
+                                                    .await
-                                        }
+                                                    .unwrap();
+                                            }
 
-                                        handler_hosts_config_sender.send(config).await.unwrap();
+                                            handler_hosts_config_sender.send(config).await.unwrap();
-                                    } else {
+                                        } else {
-                                        log::error!("Could not deserialize the latest configuration from {}", topic_name);
+                                            log::error!("Could not deserialize the latest configuration from {}", topic_name);
-                                        handler_hosts_config_sender.send(None).await.unwrap();
+                                            handler_hosts_config_sender.send(None).await.unwrap();
-                                    };
+                                        };
-                                } else {
+                                    }
-                                    let page_id = topic_segments[1];
+                                    _ => {
-                                    let position = topic_segments[2];
+                                        let page_id = topic_segments[1];
-                                    let property = topic_segments[3];
+                                        let position = topic_segments[2];
+                                        let property = topic_segments[3];
 
-                                    match topic_segments[0] {
+                                        match topic_segments[0] {
-                                        "keys" if property == "events" => {
+                                            "keys" if property == "events" => {
-                                            if let Ok(event) = serde_json::from_slice(&event.payload) {
+                                                if let Ok(event) = serde_json::from_slice(&event.payload) {
-                                                if let Ok(position) = KeyPosition::from_str(position) {
+                                                    if let Ok(position) = KeyPosition::from_str(position) {
-                                                    // This can be Err when events are received before the configuration
+                                                        // This can be Err when events are received before the configuration
-                                                    // but in that case we just ignore the event.
+                                                        // but in that case we just ignore the event.
-                                                    _ = events_sender.send(HandlerEvent::Key {
+                                                        _ = events_sender.send(HandlerEvent::Key {
-                                                        path: KeyPath {
+                                                            path: KeyPath {
-                                                            page_id: page_id.to_owned(),
+                                                                page_id: page_id.to_owned(),
-                                                            position,
+                                                                position,
-                                                        },
+                                                            },
-                                                        event,
+                                                            event,
-                                                    })
+                                                        })
+                                                    } else {
+                                                        log::warn!("Invalid key position in topic name: {topic_name}");
+                                                    }
                                                 } else {
-                                                    log::warn!("Invalid key position in topic name: {topic_name}");
+                                                    log::error!("Could not deserialize the latest event from {topic_name}");
-                                                }
+                                                };
-                                            } else {
+                                            }
-                                                log::error!("Could not deserialize the latest event from {topic_name}");
+                                            "knobs" if property == "events" => {
-                                            };
+                                                if let Ok(event) = serde_json::from_slice(&event.payload) {
-                                        }
+                                                    if let Ok(position) = KnobPosition::from_str(position) {
-                                        "knobs" if property == "events" => {
+                                                        // This can be Err when events are received before the configuration
-                                            if let Ok(event) = serde_json::from_slice(&event.payload) {
+                                                        // but in that case we just ignore the event.
-                                                if let Ok(position) = KnobPosition::from_str(position) {
+                                                        _ = events_sender.send(HandlerEvent::Knob {
-                                                    // This can be Err when events are received before the configuration
+                                                            path: KnobPath {
-                                                    // but in that case we just ignore the event.
+                                                                page_id: page_id.to_owned(),
-                                                    _ = events_sender.send(HandlerEvent::Knob {
+                                                                position,
-                                                        path: KnobPath {
+                                                            },
-                                                            page_id: page_id.to_owned(),
+                                                            event,
-                                                            position,
+                                                        });
-                                                        },
+                                                    } else {
-                                                        event,
+                                                        log::warn!("Invalid knob position in topic name: {topic_name}");
-                                                    });
+                                                    }
                                                 } else {
-                                                    log::warn!("Invalid knob position in topic name: {topic_name}");
+                                                    log::error!("Could not deserialize the latest event from {}", topic_name);
-                                                }
+                                                };
-                                            } else {
+                                            }
-                                                log::error!("Could not deserialize the latest event from {}", topic_name);
+                                            _ => {}
-                                            };
                                         }
-                                        _ => {}
                                     }
                                 }
                             }
@@ -146,6 +150,15 @@ pub async fn start_mqtt_client(
     tokio::spawn(async move {
         while let Ok(command) = commands_receiver.recv_async().await {
             match command {
+                HandlerCommand::Vibrate { pattern } => client
+                    .publish(
+                        format!("{topic_prefix}/vibrate"),
+                        QoS::ExactlyOnce,
+                        false,
+                        serde_json::to_vec(&pattern).unwrap(),
+                    )
+                    .await
+                    .unwrap(),
                 HandlerCommand::SetKeyStyle { path, value } => client
                     .publish(
                         format!("{topic_prefix}/keys/{path}/style"),