From 6697c38af03a4d9ca3cedb407ca610fc4bf7bf72 Mon Sep 17 00:00:00 2001
From: Quentin Legot <legotquentin@gmail.com>
Date: Tue, 25 Apr 2023 20:08:07 +0200
Subject: [PATCH] Frontend now listen to event sent from backend

---
 src-tauri/src/launcher/mod.rs | 14 ++++++++++++--
 src-tauri/src/main.rs         |  4 ++--
 src/components/login.js       | 18 +++++++++++++++---
 src/index.html                |  2 +-
 src/main.js                   | 10 +++++++---
 5 files changed, 37 insertions(+), 11 deletions(-)

diff --git a/src-tauri/src/launcher/mod.rs b/src-tauri/src/launcher/mod.rs
index fda6cfe..bb49564 100644
--- a/src-tauri/src/launcher/mod.rs
+++ b/src-tauri/src/launcher/mod.rs
@@ -5,6 +5,7 @@ use std::path::{Path, self};
 use anyhow::{Result, bail};
 use reqwest::{Client, StatusCode};
 use serde::{Serialize, Deserialize};
+use tauri::Manager;
 use tokio::{fs, io::{AsyncWriteExt, AsyncSeekExt}};
 
 use crate::authentification::GameProfile;
@@ -19,6 +20,13 @@ const ACTUAL_OS: OSName = OSName::Linux;
 #[cfg(target_os="macos")]
 const ACTUAL_OS: OSName = OSName::MacOsX;
 
+#[derive(Clone, serde::Serialize)]
+struct ProgressMessage {
+    p_type: String,
+    current: usize,
+    total: usize,
+}
+
 pub struct ClientOptions<'a> {
     pub authorization: GameProfile,
     pub root_path: &'a Path,
@@ -55,7 +63,7 @@ impl<'a> MinecraftClient<'_> {
         Ok(details)
     }
 
-    pub async fn download_assets(&mut self) -> Result<()> {
+    pub async fn download_assets(&mut self, app: tauri::AppHandle) -> Result<()> {
         // create root folder if it doesn't exist
         if !self.opts.root_path.exists() {
             fs::create_dir_all(self.opts.root_path).await?;
@@ -65,7 +73,8 @@ impl<'a> MinecraftClient<'_> {
             fs::create_dir(lib).await?;
         }
         self.filter_non_necessary_librairies();
-        for (_, i) in self.details.libraries.iter().enumerate() {
+        let total = self.details.libraries.len();
+        for (progress, i) in self.details.libraries.iter().enumerate() {
             let p = i.downloads.artifact.path.clone();
             let mut splited = p.split("/").collect::<Vec<&str>>();
             let filename = splited.pop().ok_or(anyhow::anyhow!("Invalid filename"))?; // remove last element
@@ -112,6 +121,7 @@ impl<'a> MinecraftClient<'_> {
             } else {
                 println!("{} already downloaded", i.name);
             }
+            app.emit_all("progress", ProgressMessage { p_type: "libraries".to_string(), current: progress + 1, total })?;
         }
         
         Ok(())
diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index 086fac4..d5d7c73 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -42,7 +42,7 @@ async fn login(app: tauri::AppHandle, _window: tauri::Window, state: tauri::Stat
 }
 
 #[tauri::command]
-async fn download(state: tauri::State<'_, Mutex<CustomState>>) -> Result<String, String> {
+async fn download(app: tauri::AppHandle, state: tauri::State<'_, Mutex<CustomState>>) -> Result<String, String> {
     if let Some(base_dir) = BaseDirs::new() {
         let data_folder = base_dir.data_dir().join(".altarik_test");
         let root_path = data_folder.as_path();
@@ -66,7 +66,7 @@ async fn download(state: tauri::State<'_, Mutex<CustomState>>) -> Result<String,
         let client = MinecraftClient::new(&opts).await;
         match client {
             Ok(mut client) => {
-                match client.download_assets().await {
+                match client.download_assets(app).await {
                     Ok(_) => {
                         Ok("Content downloaded".to_string())
                     },
diff --git a/src/components/login.js b/src/components/login.js
index e2294d2..33e36eb 100644
--- a/src/components/login.js
+++ b/src/components/login.js
@@ -1,4 +1,4 @@
-export default {
+const vue = {
   data() {
     return {
       button_message: "Login to minecraft",
@@ -7,6 +7,15 @@ export default {
       hideDownloadButton: true,
     }
   },
+  created() {
+    console.log(this)
+    this.listen('progress', (event) => {
+      // event.event is the event name (useful if you want to use a single callback fn for multiple event types)
+      // event.payload is the payload object
+      console.log(event.payload)
+      this.greet_message = event.payload
+    })
+  },
   methods: {
     login (e) {
       e.preventDefault()
@@ -25,7 +34,7 @@ export default {
       e.preventDefault()
       if(!this.hideDownloadButton) {
         this.invoke("download", {}).then(value => {
-          this.greet_message = value
+          // this.greet_message = value
         }).catch(err => {
           this.greet_message = "Error: " + err
         })
@@ -33,7 +42,8 @@ export default {
     },
   },
   props: {
-    invoke: Object
+    invoke: Object,
+    listen: Object,
   },
   template: `
   <h1>Welcome to Tauri!</h1>
@@ -48,3 +58,5 @@ export default {
   <p id="greet-msg">{{ greet_message }}</p>
   `
 }
+
+export default vue;
\ No newline at end of file
diff --git a/src/index.html b/src/index.html
index 2e69577..b0b2d48 100644
--- a/src/index.html
+++ b/src/index.html
@@ -16,7 +16,7 @@
 
   <body>
     <div id="container">
-      <loginpage :invoke="invoke"></loginpage>
+      <loginpage :invoke="invoke" :listen="listen"></loginpage>
     </div>
   </body>
 </html>
diff --git a/src/main.js b/src/main.js
index a1afad2..7fc3366 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,13 +1,15 @@
 const { invoke } = window.__TAURI__.tauri;
+const { listen } = window.__TAURI__.event;
 
 const { createApp } = Vue
 
 import loginpage from './components/login.js'
 
-createApp({
+let app = createApp({
   data() {
     return {
-      invoke: invoke
+      invoke: invoke,
+      listen: listen,
     }
   },
   mounted() {
@@ -16,4 +18,6 @@ createApp({
   components: {
     loginpage
   }
-}).mount('#container')
+});
+
+app.mount('#container')