Update README.md, fix MQTT auth, fix battery status reporting

README.md

@@ -7,7 +7,7 @@
 - [x] Command buttons
 - [x] Notifications
   - [x] Actions
-- [x] System information reporting (CPU usage, battery status, …)
+- [x] System information reporting (CPU usage, RAM usage, battery status)
 - [ ] Media control (MPRIS)
 - [ ] PipeWire control
 - [ ] File watcher
@@ -51,6 +51,9 @@ display_name = "My PC"
 host = "127.0.0.1"  # You probably need to change this
 port = 1883
 
+# You can remove the following line if your MQTT broker allows unauthenticated access
+credentials = { user = "user", password = "password" }
+
 [modules.buttons]
 enabled = true
 

src/modules/info.rs

@@ -43,8 +43,10 @@ pub async fn init(context: &mut InitializationContext) -> Result<()> {
                 sub_id: "ram_usage",
                 display_name: "RAM Usage",
                 icon: "mdi:memory",
-                suggested_precision: 0,
+                suggested_precision: Some(0),
                 unit: Some("%"),
+                force_update: true,
+                device_class: "None"
             },
             context,
             config.ram_usage,
@@ -63,8 +65,10 @@ pub async fn init(context: &mut InitializationContext) -> Result<()> {
                 sub_id: "cpu_usage",
                 display_name: "CPU Usage",
                 icon: "mdi:memory",
-                suggested_precision: 0,
+                suggested_precision: Some(0),
                 unit: Some("%"),
+                force_update: true,
+                device_class: "None"
             },
             context,
             config.cpu_usage,
@@ -106,8 +110,10 @@ pub async fn init(context: &mut InitializationContext) -> Result<()> {
                     sub_id: "battery_level",
                     display_name: "Battery Level",
                     icon: "mdi:battery",
-                    suggested_precision: 0,
+                    suggested_precision: Some(0),
                     unit: Some("%"),
+                    force_update: true,
+                    device_class: "battery"
                 },
                 context,
                 config.battery,
@@ -120,8 +126,10 @@ pub async fn init(context: &mut InitializationContext) -> Result<()> {
                     sub_id: "battery_state",
                     display_name: "Battery State",
                     icon: "mdi:battery",
-                    suggested_precision: 0,
+                    suggested_precision: None,
                     unit: None,
+                    force_update: false,
+                    device_class: "enum"
                 },
                 context,
                 config.battery,
@@ -140,8 +148,10 @@ struct InfoEntityOptions<'a> {
     sub_id: &'a str,
     display_name: &'a str,
     icon: &'a str,
-    suggested_precision: u64,
+    suggested_precision: Option<u64>,
     unit: Option<&'a str>,
+    force_update: bool,
+    device_class: &'a str
 }
 
 async fn init_info_value(
@@ -167,10 +177,10 @@ async fn init_info_value(
                 let mut object = json::object! {
                     "availability_topic": context.full.mqtt.availability_topic.clone(),
                     "device": context.full.mqtt.discovery_device_object.clone(),
-                    "force_update": true,
+                    "device_class": options.device_class,
+                    "force_update": options.force_update,
                     "icon": options.icon,
                     "name": options.display_name,
-                    "suggested_display_precision": options.suggested_precision,
                     "state_class": "measurement",
                     "state_topic": state_topic.as_str(),
                     "object_id": entity_id.as_str(),
@@ -181,6 +191,10 @@ async fn init_info_value(
                     object.insert("unit_of_measurement", unit).unwrap();
                 }
 
+                if let Some(suggested_precision) = options.suggested_precision {
+                    object.insert("suggested_display_precision", suggested_precision).unwrap();
+                }
+
                 object
             }),
         )

src/mqtt.rs

@@ -28,6 +28,8 @@ pub async fn create_client(config: &config::Config, machine_id: &str, availabili
         usize::MAX,
     );
 
+    config.mqtt.credentials.as_ref().map(|c| options.set_credentials(c.user.clone(), c.password.clone()));
+
     let (mqtt_client, event_loop) = MqttClient::new(options, 30);
     Ok((mqtt_client, event_loop))
 }