feat: add notification sounds (#44)

### Explanation

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### Issue

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### Attestations

- [ ] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [ ] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [ ] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [ ] I have pinned the dependencies to a specific patch version.

### Style

- [ ] I have run the linter and resolved any errors.
- [ ] My pull request uses an appropriate title, matching the conventional commit standards.
- [ ] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [ ] All new and existing tests pass locally with my changes.
- [ ] Code coverage remains at or above the configured threshold.

### Documentation

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### Versioning

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Reviewed-on: #44
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src-tauri/src/config.rs

@@ -46,6 +46,12 @@ pub struct HikariConfig {
 
     #[serde(default)]
     pub greeting_custom_prompt: Option<String>,
+
+    #[serde(default = "default_notifications_enabled")]
+    pub notifications_enabled: bool,
+
+    #[serde(default = "default_notification_volume")]
+    pub notification_volume: f32,
 }
 
 impl Default for HikariConfig {
@@ -59,6 +65,8 @@ impl Default for HikariConfig {
             theme: Theme::default(),
             greeting_enabled: true,
             greeting_custom_prompt: None,
+            notifications_enabled: true,
+            notification_volume: 0.7,
         }
     }
 }
@@ -67,6 +75,14 @@ fn default_greeting_enabled() -> bool {
     true
 }
 
+fn default_notifications_enabled() -> bool {
+    true
+}
+
+fn default_notification_volume() -> f32 {
+    0.7
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize, Default, PartialEq)]
 #[serde(rename_all = "lowercase")]
 pub enum Theme {
@@ -103,6 +119,8 @@ mod tests {
             theme: Theme::Light,
             greeting_enabled: true,
             greeting_custom_prompt: Some("Hello!".to_string()),
+            notifications_enabled: true,
+            notification_volume: 0.7,
         };
 
         let json = serde_json::to_string(&config).unwrap();

src-tauri/src/lib.rs

@@ -1,10 +1,18 @@
 mod commands;
 mod config;
+mod notifications;
 mod types;
 mod wsl_bridge;
+mod wsl_notifications;
+mod vbs_notification;
+mod windows_toast;
 
 use commands::*;
+use notifications::*;
 use wsl_bridge::create_shared_bridge;
+use wsl_notifications::*;
+use vbs_notification::*;
+use windows_toast::*;
 
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
@@ -15,6 +23,8 @@ pub fn run() {
         .plugin(tauri_plugin_opener::init())
         .plugin(tauri_plugin_shell::init())
         .plugin(tauri_plugin_store::Builder::new().build())
+        .plugin(tauri_plugin_notification::init())
+        .plugin(tauri_plugin_os::init())
         .manage(bridge)
         .invoke_handler(tauri::generate_handler![
             start_claude,
@@ -25,6 +35,12 @@ pub fn run() {
             select_wsl_directory,
             get_config,
             save_config,
+            send_windows_notification,
+            send_simple_notification,
+            send_windows_toast,
+            send_notify_send,
+            send_wsl_notification,
+            send_vbs_notification,
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");

src-tauri/src/notifications.rs

@@ -0,0 +1,96 @@
+use tauri::command;
+use std::process::Command;
+
+#[command]
+pub async fn send_notify_send(title: String, body: String) -> Result<(), String> {
+    // Use notify-send for Linux/WSL
+    let output = Command::new("notify-send")
+        .arg(&title)
+        .arg(&body)
+        .arg("--urgency=normal")
+        .arg("--app-name=Hikari Desktop")
+        .output()
+        .map_err(|e| format!("Failed to execute notify-send: {}. Make sure libnotify-bin is installed.", e))?;
+
+    if !output.status.success() {
+        let error = String::from_utf8_lossy(&output.stderr);
+        return Err(format!("notify-send failed: {}", error));
+    }
+
+    Ok(())
+}
+
+#[command]
+pub async fn send_windows_notification(title: String, body: String) -> Result<(), String> {
+    // Create PowerShell script for Windows Toast Notification
+    let ps_script = format!(
+        r#"
+[Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime] > $null
+[Windows.Data.Xml.Dom.XmlDocument, Windows.Data.Xml.Dom.XmlDocument, ContentType = WindowsRuntime] > $null
+
+$APP_ID = 'Hikari Desktop'
+
+$template = @"
+<toast>
+    <visual>
+        <binding template="ToastText02">
+            <text id="1">{}</text>
+            <text id="2">{}</text>
+        </binding>
+    </visual>
+    <audio src="ms-winsoundevent:Notification.Default" />
+</toast>
+"@
+
+$xml = New-Object Windows.Data.Xml.Dom.XmlDocument
+$xml.LoadXml($template)
+
+$toast = New-Object Windows.UI.Notifications.ToastNotification $xml
+[Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier($APP_ID).Show($toast)
+"#,
+        title.replace("\"", "`\""),
+        body.replace("\"", "`\"")
+    );
+
+    // Try PowerShell Core first (pwsh), then fall back to Windows PowerShell
+    let output = Command::new("pwsh.exe")
+        .arg("-NoProfile")
+        .arg("-WindowStyle")
+        .arg("Hidden")
+        .arg("-Command")
+        .arg(&ps_script)
+        .output()
+        .or_else(|_| {
+            Command::new("powershell.exe")
+                .arg("-NoProfile")
+                .arg("-WindowStyle")
+                .arg("Hidden")
+                .arg("-Command")
+                .arg(&ps_script)
+                .output()
+        })
+        .map_err(|e| format!("Failed to execute PowerShell: {}", e))?;
+
+    if !output.status.success() {
+        let error = String::from_utf8_lossy(&output.stderr);
+        return Err(format!("PowerShell script failed: {}", error));
+    }
+
+    Ok(())
+}
+
+// Alternative: Use Windows built-in MSG command for simple notifications
+#[command]
+pub async fn send_simple_notification(title: String, body: String) -> Result<(), String> {
+    let message = format!("{}\n\n{}", title, body);
+
+    Command::new("cmd.exe")
+        .arg("/c")
+        .arg("msg")
+        .arg("*")
+        .arg(&message)
+        .output()
+        .map_err(|e| format!("Failed to send message: {}", e))?;
+
+    Ok(())
+}

src-tauri/src/vbs_notification.rs

@@ -0,0 +1,74 @@
+use std::process::Command;
+use std::io::Write;
+use tempfile::NamedTempFile;
+use tauri::command;
+
+#[command]
+pub async fn send_vbs_notification(title: String, body: String) -> Result<(), String> {
+    // Create a VBScript that shows a Windows notification
+    let vbs_content = format!(
+        r#"
+Set objShell = CreateObject("WScript.Shell")
+objShell.Popup "{}" & vbCrLf & vbCrLf & "{}", 5, "{}", 64
+"#,
+        body.replace("\"", "\"\"").replace("\n", "\" & vbCrLf & \""),
+        title.replace("\"", "\"\""),
+        title.replace("\"", "\"\"")
+    );
+
+    // Create a temporary VBS file
+    let mut temp_file = NamedTempFile::new()
+        .map_err(|e| format!("Failed to create temp file: {}", e))?;
+
+    temp_file
+        .write_all(vbs_content.as_bytes())
+        .map_err(|e| format!("Failed to write VBS content: {}", e))?;
+
+    let temp_path = temp_file.path().to_string_lossy().to_string();
+
+    // Convert WSL path to Windows path
+    let windows_path = if temp_path.starts_with("/mnt/") {
+        // Convert /mnt/c/... to C:\...
+        let path_parts: Vec<&str> = temp_path.split('/').collect();
+        if path_parts.len() > 2 {
+            let drive_letter = path_parts[2].to_uppercase();
+            let rest_of_path = path_parts[3..].join("\\");
+            format!("{}:\\{}", drive_letter, rest_of_path)
+        } else {
+            temp_path.clone()
+        }
+    } else if temp_path.starts_with("/tmp/") {
+        // WSL temp files might be in a different location
+        // Try to use wslpath to convert
+        let output = Command::new("wslpath")
+            .arg("-w")
+            .arg(&temp_path)
+            .output();
+
+        if let Ok(result) = output {
+            if result.status.success() {
+                String::from_utf8_lossy(&result.stdout).trim().to_string()
+            } else {
+                temp_path.clone()
+            }
+        } else {
+            temp_path.clone()
+        }
+    } else {
+        temp_path.clone()
+    };
+
+    // Execute the VBScript using wscript.exe
+    let output = Command::new("/mnt/c/Windows/System32/wscript.exe")
+        .arg("//NoLogo")
+        .arg(&windows_path)
+        .output()
+        .map_err(|e| format!("Failed to execute VBScript: {}", e))?;
+
+    if !output.status.success() {
+        let error = String::from_utf8_lossy(&output.stderr);
+        return Err(format!("VBScript execution failed: {}", error));
+    }
+
+    Ok(())
+}

src-tauri/src/windows_toast.rs

@@ -0,0 +1,63 @@
+use tauri::command;
+
+#[cfg(target_os = "windows")]
+use windows::{
+    core::{HSTRING, Result as WindowsResult},
+    Data::Xml::Dom::*,
+    UI::Notifications::*,
+};
+
+#[cfg(target_os = "windows")]
+#[command]
+pub async fn send_windows_toast(title: String, body: String) -> Result<(), String> {
+    show_toast_notification(&title, &body)
+        .map_err(|e| format!("Failed to show toast notification: {}", e))
+}
+
+#[cfg(target_os = "windows")]
+fn show_toast_notification(title: &str, body: &str) -> WindowsResult<()> {
+    // Create the XML for the toast notification
+    let toast_xml = format!(
+        r#"<toast>
+            <visual>
+                <binding template="ToastGeneric">
+                    <text>{}</text>
+                    <text>{}</text>
+                </binding>
+            </visual>
+            <audio src="ms-winsoundevent:Notification.Default" />
+        </toast>"#,
+        escape_xml(title),
+        escape_xml(body)
+    );
+
+    let xml_doc = XmlDocument::new()?;
+    xml_doc.LoadXml(&HSTRING::from(toast_xml))?;
+
+    // Create the toast notification
+    let toast = ToastNotification::CreateToastNotification(&xml_doc)?;
+
+    // Create a toast notifier with an application ID
+    let notifier = ToastNotificationManager::CreateToastNotifierWithId(&HSTRING::from("Hikari Desktop"))?;
+
+    // Show the notification
+    notifier.Show(&toast)?;
+
+    Ok(())
+}
+
+#[cfg(target_os = "windows")]
+fn escape_xml(text: &str) -> String {
+    text.replace('&', "&amp;")
+        .replace('<', "&lt;")
+        .replace('>', "&gt;")
+        .replace('"', "&quot;")
+        .replace('\'', "&apos;")
+}
+
+// Stub for non-Windows platforms
+#[cfg(not(target_os = "windows"))]
+#[command]
+pub async fn send_windows_toast(_title: String, _body: String) -> Result<(), String> {
+    Err("Windows toast notifications are only available on Windows".to_string())
+}

src-tauri/src/wsl_notifications.rs

@@ -0,0 +1,84 @@
+use std::process::Command;
+use tauri::command;
+
+#[command]
+pub async fn send_wsl_notification(title: String, body: String) -> Result<(), String> {
+    // Method 1: Try Windows 10/11 toast notification using PowerShell
+    let toast_command = format!(
+        r#"
+Add-Type -AssemblyName System.Runtime.WindowsRuntime
+$null = [Windows.UI.Notifications.ToastNotificationManager, Windows.UI.Notifications, ContentType = WindowsRuntime]
+$null = [Windows.Data.Xml.Dom.XmlDocument, Windows.Data.Xml.Dom.XmlDocument, ContentType = WindowsRuntime]
+
+$APP_ID = 'Hikari Desktop'
+
+$template = @"
+<toast>
+    <visual>
+        <binding template="ToastGeneric">
+            <text>{0}</text>
+            <text>{1}</text>
+        </binding>
+    </visual>
+</toast>
+"@
+
+$xml = New-Object Windows.Data.Xml.Dom.XmlDocument
+$xml.LoadXml($template -f ('{0}' -replace "'", "''"), ('{1}' -replace "'", "''"))
+
+$toast = New-Object Windows.UI.Notifications.ToastNotification $xml
+$notifier = [Windows.UI.Notifications.ToastNotificationManager]::CreateToastNotifier($APP_ID)
+$notifier.Show($toast)
+"#,
+        title.replace("'", "''").replace("\"", "\\\""),
+        body.replace("'", "''").replace("\"", "\\\"")
+    );
+
+    // Try PowerShell.exe through WSL
+    let output = Command::new("/mnt/c/Windows/System32/WindowsPowerShell/v1.0/powershell.exe")
+        .arg("-NoProfile")
+        .arg("-ExecutionPolicy")
+        .arg("Bypass")
+        .arg("-WindowStyle")
+        .arg("Hidden")
+        .arg("-Command")
+        .arg(&toast_command)
+        .output();
+
+    match output {
+        Ok(result) => {
+            if result.status.success() {
+                println!("WSL notification sent successfully");
+                return Ok(());
+            } else {
+                let stderr = String::from_utf8_lossy(&result.stderr);
+                println!("PowerShell toast failed: {}", stderr);
+            }
+        }
+        Err(e) => {
+            println!("Failed to run PowerShell: {}", e);
+        }
+    }
+
+    // Skip msg.exe as it creates alert boxes
+    // Method 2 removed
+
+    // Method 3: Try wsl-notify-send if available
+    let notify_result = Command::new("wsl-notify-send")
+        .arg("--appId")
+        .arg("HikariDesktop")
+        .arg("--category")
+        .arg(&title)
+        .arg(&body)
+        .output();
+
+    if let Ok(result) = notify_result {
+        if result.status.success() {
+            println!("Notification sent via wsl-notify-send");
+            return Ok(());
+        }
+    }
+
+    // If all methods fail, return an error
+    Err("All WSL notification methods failed".to_string())
+}