Refactoring Install paths for a frontend experience

src-tauri/src/commands.rs

@@ -1,7 +1,7 @@
-use std::path::PathBuf;
+use std::path::{Path, PathBuf};
 
 use serde::Deserialize;
-use tauri::State;
+use tauri::{AppHandle, Emitter, State};
 use tokio::fs;
 
 use crate::{launcher::LAUNCHER_DIR, save_state, LauncherSettings, Mod, SharedState};
@@ -118,9 +118,7 @@ pub async fn remove_mod(version: String, file_name: String) -> Result<(), String
     }
 
     // move file
-    fs::remove_file(&source)
-        .await
-        .map_err(|e| e.to_string())?;
+    fs::remove_file(&source).await.map_err(|e| e.to_string())?;
 
     Ok(())
 }
@@ -289,3 +287,44 @@ pub fn update_version(state: State<SharedState>, version: String) {
 
     save_state(&state);
 }
+
+#[tauri::command]
+pub async fn install_paths(
+    app: &AppHandle,
+    state: &SharedState,
+    paths: &Vec<String>,
+) -> Result<(), String> {
+    for path in paths {
+        let file = Path::new(&path)
+            .file_name()
+            .and_then(|name| name.to_str())
+            .unwrap_or_default();
+
+        if file.is_empty() {
+            println!("Error: Unable to obtain file");
+            continue;
+        }
+
+        let version_dir = LAUNCHER_DIR.data_dir().join(&state.lock().unwrap().version);
+
+        let mc_child = if path.ends_with(".jar") {
+            Some("mods")
+        } else {
+            None
+        };
+
+        if let Some(mc_child) = mc_child {
+            match fs::copy(path, version_dir.join(mc_child).join(file)).await {
+                Ok(_) => {
+                    app.emit("path-installed", path.to_string())
+                        .map_err(|e| e.to_string())?;
+                }
+                Err(e) => {
+                    println!("Error: failed to copy mod {file:?}: {e}")
+                }
+            }
+        }
+    }
+
+    Ok(())
+}

src-tauri/src/lib.rs

@@ -102,33 +102,3 @@ pub fn save_state(state: &SharedState) {
     }
 }
 
-pub fn install_paths(state: &SharedState, paths: &Vec<PathBuf>) {
-    for path in paths {
-        if path.is_file() {
-            let file = path.file_name().unwrap_or_default().to_str().unwrap_or_default();
-
-            if file.is_empty() {
-                println!("Error: Unable to obtain file");
-                continue;
-            }
-
-            let version_dir = LAUNCHER_DIR.data_dir().join(&state.lock().unwrap().version);
-
-            let mc_child = match path.extension().unwrap_or_default().to_str().unwrap_or_default() {
-                // Mod
-                "jar" => Some("mods"),
-                // Etc (won't install)
-                _ => None
-            };
-
-            if let Some(mc_child) = mc_child {
-                match fs::copy(path, version_dir.join(mc_child).join(file)) {
-                    Ok(_) => {}
-                    Err(e) => {
-                        println!("Error: failed to copy mod {file:?}: {e}")
-                    }
-                }
-            }
-        }
-    }
-}

src-tauri/src/main.rs

@@ -1,8 +1,8 @@
 // Prevents additional console window on Windows in release, DO NOT REMOVE!!
 #![cfg_attr(not(debug_assertions), windows_subsystem = "windows")]
 
-use saturn_launcher_lib::{SharedState, install_paths, load_state};
-use tauri::{Manager, WindowEvent};
+use saturn_launcher_lib::load_state;
+use tauri::{Emitter, Manager, WindowEvent};
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 fn main() {
@@ -30,19 +30,35 @@ fn main() {
             saturn_launcher_lib::launcher::auth::auth_remove,
             saturn_launcher_lib::launcher::auth::auth_validate,
             saturn_launcher_lib::launcher::auth::auth_get_valid
-        ]).setup(|app| {
+        ])
+        .setup(|app| {
             match app.get_webview_window("main") {
                 Some(window) => {
-                    let state = app.state::<SharedState>().inner().clone();
+                    let handle = app.handle().clone();
 
                     window.on_window_event(move |event| {
                         if let WindowEvent::DragDrop(file_event) = event {
-                            match file_event {
-                                tauri::DragDropEvent::Drop{paths, ..} => {
-                                    println!("Installing files: {:?}", paths);
-                                    install_paths(&state, paths);
+                            if let tauri::DragDropEvent::Drop { paths, .. } = file_event {
+                                println!("Installing files: {:?}", paths);
+
+                                if handle
+                                    .emit(
+                                        "install-paths",
+                                        paths
+                                            .iter()
+                                            .filter_map(|p| {
+                                                if p.is_file() {
+                                                    Some(p.to_str()?.to_string())
+                                                } else {
+                                                    None
+                                                }
+                                            })
+                                            .collect::<Vec<_>>(),
+                                    )
+                                    .is_err()
+                                {
+                                    println!("Failed emitting files to frontend");
                                 }
-                                _ => {}
                             }
                         }
                     });