Good try

src/counter.rs

@@ -0,0 +1,50 @@
+use std::collections::HashSet;
+
+use lunatic::{abstract_process, ap::Config, Process};
+
+pub struct Counter {
+    counter: i64,
+    subscribers: HashSet<Process<i64>>,
+}
+
+#[abstract_process(visibility = pub)]
+impl Counter {
+    #[init]
+    pub fn init(_: Config<Self>, start: i64) -> Result<Self, ()> {
+        Ok(Self {
+            counter: start,
+            subscribers: HashSet::new(),
+        })
+    }
+
+    #[handle_message]
+    pub fn subscribe(&mut self, m: Process<i64>) {
+        // monitor the process so we can remove it from this list when it dies
+        // let p = Process::spawn_link(self.counter, |capture, m: Mailbox<()>| {
+        // });
+
+        // add it to our list of subscribers
+        self.subscribers.insert(m);
+    }
+
+    fn notify(&self) {
+        for s in self.subscribers.iter() {
+            s.send(self.counter)
+        }
+    }
+
+    #[handle_message]
+    pub fn increment(&mut self) {
+        self.counter += 1;
+    }
+
+    #[handle_message]
+    pub fn decrement(&mut self) {
+        self.counter -= 1;
+    }
+
+    #[handle_request]
+    pub fn count(&self) -> i64 {
+        self.counter
+    }
+}

src/counter_view.rs

@@ -0,0 +1,63 @@
+use crate::counter::*;
+use lunatic::{ap::ProcessRef, spawn};
+use serde::{Deserialize, Serialize};
+use submillisecond_live_view::prelude::*;
+
+#[derive(Clone, Serialize, Deserialize)]
+pub struct CounterView {
+    global_counter: ProcessRef<Counter>,
+    current_value: i64,
+}
+
+impl LiveView for CounterView {
+    type Events = (Increment, Decrement);
+
+    fn mount(_uri: Uri, socket: Option<Socket>) -> Self {
+        println!("{:?}", socket.is_some());
+        let global_counter = ProcessRef::<Counter>::lookup(&"global_counter").unwrap();
+        let current_count = global_counter.count();
+        let mut result = Self {
+            global_counter,
+            current_value: current_count,
+        };
+        spawn!(|m: Mailbox<i64>| {
+            loop {
+                result.current_value = m.receive();
+            }
+        });
+        result
+    }
+
+    fn render(&self) -> Rendered {
+        html! {
+            button @click=(Increment) { "Increment" }
+            button @click=(Decrement) { "Decrement" }
+            p { "Count is " (self.current_value) }
+        }
+    }
+}
+
+#[derive(Deserialize)]
+pub struct Increment {}
+impl LiveViewEvent<Increment> for CounterView {
+    fn handle(state: &mut Self, _event: Increment) {
+        state.current_value += 1;
+        state.global_counter.increment()
+    }
+}
+
+#[derive(Deserialize)]
+pub struct Decrement {}
+impl LiveViewEvent<Decrement> for CounterView {
+    fn handle(state: &mut Self, _event: Decrement) {
+        state.current_value -= 1;
+        state.global_counter.decrement()
+    }
+}
+
+pub type Notified = i64;
+impl LiveViewEvent<Notified> for CounterView {
+    fn handle(state: &mut Self, event: Notified) {
+        state.current_value = event;
+    }
+}

src/main.rs

@@ -1,38 +1,13 @@
-use lunatic::supervisor::{Supervisor, SupervisorConfig, SupervisorStrategy};
+mod counter;
-use serde::{Deserialize, Serialize};
+mod counter_view;
+
+use counter::Counter;
+use counter_view::CounterView;
+use lunatic::supervisor::*;
 use submillisecond::{router, static_router, Application};
 use submillisecond_live_view::prelude::*;
 
-use lunatic::abstract_process;
-use lunatic::ap::{Config, ProcessRef};
-
-pub struct Counter(i64);
-
-#[abstract_process(visibility = pub)]
-impl Counter {
-    #[init]
-    fn init(_: Config<Self>, start: i64) -> Result<Self, ()> {
-        Ok(Self(start))
-    }
-
-    #[handle_message]
-    fn increment(&mut self) {
-        self.0 += 1;
-    }
-
-    #[handle_message]
-    fn decrement(&mut self) {
-        self.0 -= 1;
-    }
-
-    #[handle_request]
-    fn count(&self) -> i64 {
-        self.0
-    }
-}
-
 struct Sup;
-
 impl Supervisor for Sup {
     type Arg = ();
     // Start 1 child and monitor it for failures.
@@ -49,48 +24,8 @@ fn main() -> std::io::Result<()> {
     Sup::init(&mut supconf, ());
 
     Application::new(router! {
-        "/" => CounterView::handler("index.html", "#app")
+        "/" => CounterView::handler("./static/index.html", "#app")
         "/static" => static_router!("./static")
     })
     .serve("127.0.0.1:3000")
 }
-
-#[derive(Clone, Serialize, Deserialize)]
-struct CounterView {
-    global_counter: ProcessRef<Counter>,
-}
-
-impl LiveView for CounterView {
-    type Events = (Increment, Decrement);
-
-    fn mount(_uri: Uri, _socket: Option<Socket>) -> Self {
-        let global_counter = ProcessRef::<Counter>::lookup(&"global_counter").unwrap();
-        Self { global_counter }
-    }
-
-    fn render(&self) -> Rendered {
-        html! {
-            button @click=(Increment) { "Increment" }
-            button @click=(Decrement) { "Decrement" }
-            p { "Count is " (self.global_counter.count()) }
-        }
-    }
-}
-
-#[derive(Deserialize)]
-struct Increment {}
-
-impl LiveViewEvent<Increment> for CounterView {
-    fn handle(state: &mut Self, _event: Increment) {
-        state.global_counter.increment()
-    }
-}
-
-#[derive(Deserialize)]
-struct Decrement {}
-
-impl LiveViewEvent<Decrement> for CounterView {
-    fn handle(state: &mut Self, _event: Decrement) {
-        state.global_counter.decrement()
-    }
-}