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src-tauri/src/sidecar.rs

@@ -8,7 +8,7 @@ use tauri_plugin_shell::ShellExt;
 // ===== 配置常量 =====
 
 /// Sidecar App 启动超时时间（秒）
-const STARTUP_TIMEOUT_SECS: u64 = 5;
+const STARTUP_TIMEOUT_SECS: u64 = 30;
 
 /// 默认起始端口
 const DEFAULT_PORT: u16 = 3000;
@@ -47,6 +47,27 @@ async fn find_available_port(start: u16) -> u16 {
     start // 回退到起始端口
 }
 
+// 显示错误对话框
+fn show_error_dialog(message: &str) {
+    #[cfg(target_os = "windows")]
+    {
+        use std::process::Command;
+        let _ = Command::new("powershell")
+            .args([
+                "-Command",
+                &format!(
+                    "[System.Windows.Forms.MessageBox]::Show('{}', '启动错误', 'OK', 'Error')",
+                    message.replace('\'', "''")
+                ),
+            ])
+            .spawn();
+    }
+    #[cfg(not(target_os = "windows"))]
+    {
+        eprintln!("错误: {}", message);
+    }
+}
+
 /// 启动 Sidecar 进程并创建主窗口
 pub fn spawn_sidecar(app_handle: tauri::AppHandle) {
     // 检测是否为开发模式
@@ -84,13 +105,23 @@ pub fn spawn_sidecar(app_handle: tauri::AppHandle) {
         println!("使用端口: {}", port);
 
         // 启动 sidecar
-        let sidecar = app_handle
-            .shell()
-            .sidecar("app")
-            .expect("无法找到 app")
-            .env("PORT", port.to_string());
+        let sidecar = match app_handle.shell().sidecar("app") {
+            Ok(cmd) => cmd.env("PORT", port.to_string()),
+            Err(e) => {
+                eprintln!("✗ 无法找到 sidecar: {}", e);
+                show_error_dialog("无法找到后端服务程序，请重新安装应用。");
+                std::process::exit(1);
+            }
+        };
 
-        let (mut rx, child) = sidecar.spawn().expect("启动 sidecar 失败");
+        let (mut rx, child) = match sidecar.spawn() {
+            Ok(result) => result,
+            Err(e) => {
+                eprintln!("✗ 启动 sidecar 失败: {}", e);
+                show_error_dialog(&format!("后端服务启动失败: {}", e));
+                std::process::exit(1);
+            }
+        };
 
         // 保存进程句柄到全局状态
         if let Some(state) = app_handle.try_state::<SidecarProcess>() {
@@ -103,30 +134,46 @@ pub fn spawn_sidecar(app_handle: tauri::AppHandle) {
         let mut app_ready = false;
 
         while let Some(event) = rx.recv().await {
-            if let CommandEvent::Stdout(line) = event {
-                let output = String::from_utf8_lossy(&line);
-                println!("App: {}", output);
+            match event {
+                CommandEvent::Stdout(line) => {
+                    let output = String::from_utf8_lossy(&line);
+                    println!("App: {}", output);
 
-                // 检测 App 启动成功的标志
-                if output.contains("Listening on:") || output.contains("localhost") {
-                    app_ready = true;
-                    println!("✓ App 启动成功！");
+                    // 检测 App 启动成功的标志
+                    if output.contains("Listening on:") || output.contains("localhost") {
+                        app_ready = true;
+                        println!("✓ App 启动成功！");
 
-                    // 创建主窗口
-                    let url = format!("http://localhost:{}", port);
-                    tauri::WebviewWindowBuilder::new(
-                        &app_handle,
-                        "main",
-                        tauri::WebviewUrl::External(url.parse().unwrap()),
-                    )
-                    .title(WINDOW_TITLE)
-                    .inner_size(DEFAULT_WINDOW_WIDTH, DEFAULT_WINDOW_HEIGHT)
-                    .center()
-                    .build()
-                    .expect("创建窗口失败");
+                        // 创建主窗口
+                        let url = format!("http://localhost:{}", port);
+                        match tauri::WebviewWindowBuilder::new(
+                            &app_handle,
+                            "main",
+                            tauri::WebviewUrl::External(url.parse().unwrap()),
+                        )
+                        .title(WINDOW_TITLE)
+                        .inner_size(DEFAULT_WINDOW_WIDTH, DEFAULT_WINDOW_HEIGHT)
+                        .center()
+                        .build()
+                        {
+                            Ok(_) => println!("✓ 窗口创建成功"),
+                            Err(e) => {
+                                eprintln!("✗ 窗口创建失败: {}", e);
+                                show_error_dialog(&format!("窗口创建失败: {}", e));
+                            }
+                        }
 
-                    break;
+                        break;
+                    }
                 }
+                CommandEvent::Stderr(line) => {
+                    let output = String::from_utf8_lossy(&line);
+                    eprintln!("App Error: {}", output);
+                }
+                CommandEvent::Error(e) => {
+                    eprintln!("Sidecar 错误: {}", e);
+                }
+                _ => {}
             }
 
             // 超时检查