fix(profile): unify error string types in validation helper

src-tauri/src/cmd/profile.rs

@@ -17,9 +17,11 @@ use crate::{
 };
 use futures::FutureExt;
 use once_cell::sync::OnceCell;
+use serde_yaml_ng as serde_yaml;
 use smartstring::alias::String;
 use std::{
     collections::VecDeque,
+    fs,
     panic::AssertUnwindSafe,
     sync::atomic::{AtomicBool, AtomicU64, Ordering},
     time::Duration,
@@ -30,6 +32,73 @@ use tokio::sync::{
     oneshot,
 };
 
+async fn validate_switch_request(task_id: u64, profile_id: &str) -> Result<(), String> {
+    logging!(
+        info,
+        Type::Cmd,
+        "Validating profile switch task {} -> {}",
+        task_id,
+        profile_id
+    );
+
+    let profile_key: String = profile_id.into();
+    let (file_path, profile_type, is_current, remote_url) = {
+        let profiles_guard = Config::profiles().await;
+        let latest = profiles_guard.latest_ref();
+        let item = latest.get_item(&profile_key).map_err(|err| -> String {
+            format!("Target profile {} not found: {}", profile_id, err).into()
+        })?;
+        (
+            item.file.clone().map(|f| f.to_string()),
+            item.itype.clone().map(|t| t.to_string()),
+            latest
+                .current
+                .as_ref()
+                .map(|current| current.as_str() == profile_id)
+                .unwrap_or(false),
+            item.url.clone().map(|u| u.to_string()),
+        )
+    };
+
+    if is_current {
+        logging!(
+            info,
+            Type::Cmd,
+            "Switch task {} is targeting the current profile {}; skipping validation",
+            task_id,
+            profile_id
+        );
+        return Ok(());
+    }
+
+    if matches!(profile_type.as_deref(), Some("remote")) {
+        let has_url = remote_url.as_ref().map(|u| !u.is_empty()).unwrap_or(false);
+        if !has_url {
+            return Err({
+                let msg = format!("Remote profile {} is missing a download URL", profile_id);
+                msg.into()
+            });
+        }
+    }
+
+    if let Some(file) = file_path {
+        let profiles_dir = dirs::app_profiles_dir().map_err(|err| -> String {
+            format!("Failed to resolve profiles directory: {}", err).into()
+        })?;
+        let path = profiles_dir.join(&file);
+
+        let contents = fs::read_to_string(&path).map_err(|err| -> String {
+            format!("Failed to read profile file {}: {}", path.display(), err).into()
+        })?;
+
+        serde_yaml::from_str::<serde_yaml::Value>(&contents).map_err(|err| -> String {
+            format!("Profile YAML parse failed for {}: {}", path.display(), err).into()
+        })?;
+    }
+
+    Ok(())
+}
+
 static SWITCH_MUTEX: OnceCell<Mutex<()>> = OnceCell::new();
 static SWITCH_QUEUE: OnceCell<mpsc::Sender<SwitchDriverMessage>> = OnceCell::new();
 const SWITCH_QUEUE_CAPACITY: usize = 32;
@@ -164,6 +233,31 @@ fn start_switch_job(
     tokio::spawn(async move {
         let profile_id = request.profile_id.clone();
         let notify = request.notify;
+        if let Err(err) = validate_switch_request(request.task_id, &profile_id).await {
+            logging!(
+                warn,
+                Type::Cmd,
+                "Validation failed for switch task {} -> {}: {}",
+                request.task_id,
+                profile_id,
+                err
+            );
+            handle::Handle::notice_message("config_validate::error", err);
+            handle::Handle::notify_profile_switch_finished(
+                profile_id.clone(),
+                false,
+                notify,
+                request.task_id,
+            );
+            let _ = driver_tx
+                .send(SwitchDriverMessage::Completion {
+                    request,
+                    success: false,
+                })
+                .await;
+            return;
+        }
+
         logging!(
             info,
             Type::Cmd,