feat: 命令执行成功后发布相关状态到 MQ. #5.

src-tauri/src/display/manager.rs

@@ -6,6 +6,7 @@ use std::{
     time::{Duration, SystemTime},
 };
 
+use base64::Config;
 use ddc_hi::Display;
 use paris::{error, info};
 use tauri::async_runtime::Mutex;
@@ -155,13 +156,19 @@ impl Manager {
                             .set_vcp_feature(0x10, target as u16)
                             .map_err(|err| anyhow::anyhow!("can not set brightness. {:?}", err))?;
 
-                let rpc = rpc::Manager::global().await;
+                        let rpc = rpc::Manager::global().await;
 
-                rpc.publish_desktop_cmd(models::MqMessage::Brightness(models::ConfigDisplayCmd {
+                        rpc.publish_desktop_cmd(&models::CmdRespMqMessage::Brightness(
-                    display_index: config.id,
+                            models::ConfigDisplayCmd {
-                    value: models::ControlValue::Absolute(config.brightness),
+                                display_index: config.id,
-                }))
+                                value: models::CmdRespWithRange {
-                .await;
+                                    value: config.brightness,
+                                    min: config.min_brightness,
+                                    max: config.max_brightness,
+                                },
+                            },
+                        ))
+                        .await;
                     }
                     Err(err) => {
                         info!(

src-tauri/src/models/cmd_resp_with_range.rs

@@ -0,0 +1,8 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Clone, Copy, Serialize, Deserialize, Debug)]
+pub struct CmdRespWithRange<T = u16> {
+    pub value: T,
+    pub max: T,
+    pub min: T,
+}

src-tauri/src/models/mod.rs

@@ -1,8 +1,10 @@
 mod control_value;
 mod mq_message;
 mod config_display_cmd;
+mod cmd_resp_with_range;
 
 pub use control_value::*;
 pub use mq_message::*;
 pub use config_display_cmd::*;
+pub use cmd_resp_with_range::*;
 

src-tauri/src/models/mq_message.rs

@@ -1,11 +1,17 @@
 use serde::{Serialize, Deserialize};
 
-use super::ConfigDisplayCmd;
+use super::{ConfigDisplayCmd, CmdRespWithRange};
 
 
 #[derive(Clone, Copy, Serialize, Deserialize, Debug)]
-pub enum MqMessage {
+pub enum CmdMqMessage {
     Brightness(ConfigDisplayCmd),
     Contrast(ConfigDisplayCmd),
     PresetMode(ConfigDisplayCmd),
+}
+#[derive(Clone, Copy, Serialize, Deserialize, Debug)]
+pub enum CmdRespMqMessage {
+    Brightness(ConfigDisplayCmd<CmdRespWithRange>),
+    Contrast(ConfigDisplayCmd<CmdRespWithRange>),
+    PresetMode(ConfigDisplayCmd<CmdRespWithRange>),
 }

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<()> {
+    pub async fn publish_desktop_cmd<T>(&self, msg: &T) -> anyhow::Result<()>
-        let str = serde_json::to_string(&msg)
+    where
-            .map_err(|err| anyhow::anyhow!("can not serialize {:?}. {:?}", msg, err))?;
+        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,