fix: replace leptos-shadcn-toast with custom implementation to fix WASM panic

frontend/src/components/toast.rs

@@ -0,0 +1,111 @@
+use leptos::prelude::*;
+use std::collections::HashMap;
+use uuid::Uuid;
+use shared::NotificationLevel;
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Toast {
+    pub id: String,
+    pub message: String,
+    pub level: NotificationLevel,
+    pub visible: RwSignal<bool>,
+}
+
+#[derive(Clone, Copy)]
+pub struct ToastContext {
+    pub toasts: RwSignal<HashMap<String, Toast>>,
+}
+
+impl ToastContext {
+    pub fn add(&self, message: impl Into<String>, level: NotificationLevel) {
+        let id = Uuid::new_v4().to_string();
+        let message = message.into();
+        let toast = Toast {
+            id: id.clone(),
+            message,
+            level,
+            visible: RwSignal::new(true),
+        };
+
+        self.toasts.update(|m| {
+            m.insert(id.clone(), toast);
+        });
+
+        // Auto remove after 5 seconds
+        let toasts = self.toasts;
+        let id_clone = id.clone();
+        leptos::task::spawn_local(async move {
+            gloo_timers::future::TimeoutFuture::new(5000).await;
+            toasts.update(|m| {
+                if let Some(t) = m.get(&id_clone) {
+                    t.visible.set(false);
+                }
+            });
+            // Wait for animation
+            gloo_timers::future::TimeoutFuture::new(300).await;
+            toasts.update(|m| {
+                m.remove(&id_clone);
+            });
+        });
+    }
+}
+
+pub fn provide_toast_context() {
+    let toasts = RwSignal::new(HashMap::new());
+    provide_context(ToastContext { toasts });
+}
+
+#[component]
+pub fn Toaster() -> impl IntoView {
+    let context = expect_context::<ToastContext>();
+    
+    view! {
+        <div class="fixed top-4 right-4 z-[100] flex flex-col gap-2 w-full max-w-sm pointer-events-none">
+            {move || {
+                context.toasts.get().into_values().map(|toast| {
+                    view! { <ToastItem toast=toast /> }
+                }).collect::<Vec<_>>()
+            }}
+        </div>
+    }
+}
+
+#[component]
+fn ToastItem(toast: Toast) -> impl IntoView {
+    let (visible, set_visible) = (toast.visible, toast.visible.write_only());
+    
+    let base_classes = "pointer-events-auto relative w-full rounded-lg border p-4 shadow-lg transition-all duration-300 ease-in-out";
+    let color_classes = match toast.level {
+        NotificationLevel::Success => "bg-green-50 text-green-900 border-green-200 dark:bg-green-900 dark:text-green-100 dark:border-green-800",
+        NotificationLevel::Error => "bg-red-50 text-red-900 border-red-200 dark:bg-red-900 dark:text-red-100 dark:border-red-800",
+        NotificationLevel::Warning => "bg-yellow-50 text-yellow-900 border-yellow-200 dark:bg-yellow-900 dark:text-yellow-100 dark:border-yellow-800",
+        NotificationLevel::Info => "bg-blue-50 text-blue-900 border-blue-200 dark:bg-blue-900 dark:text-blue-100 dark:border-blue-800",
+    };
+
+    view! {
+        <div
+            class=move || format!("{} {} {}", 
+                base_classes, 
+                color_classes,
+                if visible.get() { "opacity-100 translate-x-0" } else { "opacity-0 translate-x-full" }
+            )
+            role="alert"
+        >
+            <div class="flex items-start gap-4">
+                <div class="flex-1">
+                    <p class="text-sm font-medium">{&toast.message}</p>
+                </div>
+                <button
+                    class="inline-flex shrink-0 opacity-50 hover:opacity-100 focus:opacity-100 focus:outline-none"
+                    on:click=move |_| set_visible.set(false)
+                >
+                    <span class="sr-only">"Kapat"</span>
+                    <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="h-4 w-4">
+                        <line x1="18" x2="6" y1="6" y2="18"></line>
+                        <line x1="6" x2="18" y1="6" y2="18"></line>
+                    </svg>
+                </button>
+            </div>
+        </div>
+    }
+}