feat: 命令执行成功后发布相关状态到 MQ. #5.

src-tauri/src/rpc/manager.rs

@@ -1,5 +1,6 @@
 use paris::error;
 use tokio::sync::{broadcast, OnceCell};
+use std::fmt::Debug;
 
 use crate::{display, models, picker::led_color::LedColor};
 
@@ -51,7 +52,10 @@ impl Manager {
     pub async fn publish_led_sub_pixels(&self, payload: Vec<u8>) -> anyhow::Result<()> {
         self.client.publish_led_sub_pixels(payload).await
     }
-    pub async fn publish_desktop_cmd(&self, msg: models::MqMessage) -> anyhow::Result<()> {
+    pub async fn publish_desktop_cmd<T>(&self, msg: &T) -> anyhow::Result<()>
+    where
+        T: ?Sized + serde::Serialize,
+    {
         self.client.publish_desktop_cmd(msg).await
     }
 

src-tauri/src/rpc/mqtt.rs

@@ -3,7 +3,7 @@ use futures::StreamExt;
 use paho_mqtt as mqtt;
 use paris::{error, info, warn};
 use serde_json::json;
-use std::{borrow::Borrow, rc::Rc, sync::Arc, time::Duration};
+use std::{borrow::Borrow, fmt::Debug, rc::Rc, sync::Arc, time::Duration};
 use tauri::async_runtime::{Mutex, TokioJoinHandle};
 use time::{format_description, OffsetDateTime};
 use tokio::{sync::broadcast, task, time::sleep};
@@ -17,7 +17,7 @@ const DESKTOP_SEND_CMD: &'static str = "display-ambient-light/desktop/cmd";
 pub struct MqttRpc {
     client: mqtt::AsyncClient,
     change_display_brightness_tx: broadcast::Sender<display::DisplayBrightness>,
-    message_tx: broadcast::Sender<models::MqMessage>,
+    message_tx: broadcast::Sender<models::CmdMqMessage>,
 }
 
 impl MqttRpc {
@@ -64,6 +64,7 @@ impl MqttRpc {
 
         let connect_options = mqtt::ConnectOptionsBuilder::new()
             .keep_alive_interval(Duration::from_secs(5))
+            .will_message(last_will)
             .automatic_reconnect(Duration::from_secs(1), Duration::from_secs(5))
             .finalize();
 
@@ -78,7 +79,7 @@ impl MqttRpc {
 
         let (change_display_brightness_tx, _) =
             broadcast::channel::<display::DisplayBrightness>(16);
-        let (message_tx, _) = broadcast::channel::<models::MqMessage>(32);
+        let (message_tx, _) = broadcast::channel::<models::CmdMqMessage>(32);
         Ok(Self {
             client,
             change_display_brightness_tx,
@@ -131,7 +132,7 @@ impl MqttRpc {
                         let payload_text = String::from_utf8(notification.payload().to_vec());
                         match payload_text {
                             Ok(payload_text) => {
-                                let message: Result<models::MqMessage, _> =
+                                let message: Result<models::CmdMqMessage, _> =
                                     serde_json::from_str(payload_text.as_str());
                                 match message {
                                     Ok(message) => match message_tx_cloned.send(message) {
@@ -226,9 +227,12 @@ impl MqttRpc {
     ) -> broadcast::Receiver<display::DisplayBrightness> {
         self.change_display_brightness_tx.subscribe()
     }
-    pub async fn publish_desktop_cmd(&self, msg: models::MqMessage) -> anyhow::Result<()> {
-        let str = serde_json::to_string(&msg)
-            .map_err(|err| anyhow::anyhow!("can not serialize {:?}. {:?}", msg, err))?;
+    pub async fn publish_desktop_cmd<T>(&self, msg: &T) -> anyhow::Result<()>
+    where
+        T: ?Sized + serde::Serialize,
+    {
+        let str = serde_json::to_string(msg)
+            .map_err(|err| anyhow::anyhow!("can not serialize. {:?}", err))?;
         self.client
             .publish(mqtt::Message::new(
                 DESKTOP_SEND_CMD,