From f371178518e846d463db445d28a279febc23eabf Mon Sep 17 00:00:00 2001
From: Oronemu <Oronemu@mail.ru>
Date: Wed, 17 Dec 2025 21:50:10 +0700
Subject: [PATCH] 500

---
 frontend/src/App.tsx                   |   5 +
 frontend/src/api/client.ts             |  17 +++
 frontend/src/pages/ServerErrorPage.tsx | 143 +++++++++++++++++++++++++
 frontend/src/pages/index.ts            |   1 +
 4 files changed, 166 insertions(+)
 create mode 100644 frontend/src/pages/ServerErrorPage.tsx

diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index f28c9ca..78dbf64 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -21,6 +21,7 @@ import { ProfilePage } from '@/pages/ProfilePage'
 import { UserProfilePage } from '@/pages/UserProfilePage'
 import { NotFoundPage } from '@/pages/NotFoundPage'
 import { TeapotPage } from '@/pages/TeapotPage'
+import { ServerErrorPage } from '@/pages/ServerErrorPage'
 
 // Protected route wrapper
 function ProtectedRoute({ children }: { children: React.ReactNode }) {
@@ -154,6 +155,10 @@ function App() {
         <Route path="teapot" element={<TeapotPage />} />
         <Route path="tea" element={<TeapotPage />} />
 
+        {/* Server error page */}
+        <Route path="500" element={<ServerErrorPage />} />
+        <Route path="error" element={<ServerErrorPage />} />
+
         {/* 404 - must be last */}
         <Route path="*" element={<NotFoundPage />} />
       </Route>
diff --git a/frontend/src/api/client.ts b/frontend/src/api/client.ts
index 5a4dfc3..c798505 100644
--- a/frontend/src/api/client.ts
+++ b/frontend/src/api/client.ts
@@ -22,11 +22,28 @@ client.interceptors.request.use((config) => {
 client.interceptors.response.use(
   (response) => response,
   (error: AxiosError<{ detail: string }>) => {
+    // Unauthorized - redirect to login
     if (error.response?.status === 401) {
       localStorage.removeItem('token')
       localStorage.removeItem('user')
       window.location.href = '/login'
     }
+
+    // Server error or network error - redirect to 500 page
+    if (
+      error.response?.status === 500 ||
+      error.response?.status === 502 ||
+      error.response?.status === 503 ||
+      error.response?.status === 504 ||
+      error.code === 'ERR_NETWORK' ||
+      error.code === 'ECONNABORTED'
+    ) {
+      // Only redirect if not already on error page
+      if (!window.location.pathname.startsWith('/500') && !window.location.pathname.startsWith('/error')) {
+        window.location.href = '/500'
+      }
+    }
+
     return Promise.reject(error)
   }
 )
diff --git a/frontend/src/pages/ServerErrorPage.tsx b/frontend/src/pages/ServerErrorPage.tsx
new file mode 100644
index 0000000..2d98050
--- /dev/null
+++ b/frontend/src/pages/ServerErrorPage.tsx
@@ -0,0 +1,143 @@
+import { Link } from 'react-router-dom'
+import { NeonButton } from '@/components/ui'
+import { Home, Sparkles, RefreshCw, ServerCrash, Flame, Zap } from 'lucide-react'
+
+export function ServerErrorPage() {
+  const handleRefresh = () => {
+    window.location.href = '/'
+  }
+
+  return (
+    <div className="min-h-[70vh] flex flex-col items-center justify-center text-center px-4">
+      {/* Background effects */}
+      <div className="fixed inset-0 overflow-hidden pointer-events-none">
+        <div className="absolute top-1/4 -left-32 w-96 h-96 bg-red-500/5 rounded-full blur-[100px]" />
+        <div className="absolute bottom-1/4 -right-32 w-96 h-96 bg-orange-500/5 rounded-full blur-[100px]" />
+      </div>
+
+      {/* Server icon */}
+      <div className="relative mb-8">
+        {/* Smoke/fire effect */}
+        <div className="absolute -top-6 left-1/2 -translate-x-1/2 flex gap-3">
+          <Flame className="w-6 h-6 text-orange-500/60 animate-flicker" style={{ animationDelay: '0s' }} />
+          <Flame className="w-5 h-5 text-red-500/50 animate-flicker" style={{ animationDelay: '0.2s' }} />
+          <Flame className="w-6 h-6 text-orange-500/60 animate-flicker" style={{ animationDelay: '0.4s' }} />
+        </div>
+
+        {/* Server with error */}
+        <div className="relative">
+          <div className="w-32 h-32 rounded-2xl bg-dark-700/80 border-2 border-red-500/30 flex items-center justify-center shadow-[0_0_30px_rgba(239,68,68,0.2)]">
+            <ServerCrash className="w-16 h-16 text-red-400" />
+          </div>
+
+          {/* Error indicator */}
+          <div className="absolute -bottom-2 -right-2 w-10 h-10 rounded-xl bg-red-500/20 border border-red-500/40 flex items-center justify-center animate-pulse">
+            <Zap className="w-5 h-5 text-red-400" />
+          </div>
+
+          {/* Sparks */}
+          <div className="absolute top-2 -left-3 w-2 h-2 rounded-full bg-yellow-400 animate-spark" style={{ animationDelay: '0s' }} />
+          <div className="absolute top-6 -right-2 w-1.5 h-1.5 rounded-full bg-orange-400 animate-spark" style={{ animationDelay: '0.3s' }} />
+          <div className="absolute bottom-4 -left-2 w-1.5 h-1.5 rounded-full bg-red-400 animate-spark" style={{ animationDelay: '0.6s' }} />
+        </div>
+
+        {/* Glow effect */}
+        <div className="absolute inset-0 bg-red-500/20 rounded-full blur-3xl -z-10" />
+      </div>
+
+      {/* 500 text */}
+      <div className="relative mb-4">
+        <h1 className="text-8xl font-bold text-transparent bg-clip-text bg-gradient-to-r from-red-400 via-orange-400 to-yellow-400">
+          500
+        </h1>
+        <div className="absolute inset-0 text-8xl font-bold text-red-500/20 blur-xl">
+          500
+        </div>
+      </div>
+
+      <h2 className="text-2xl font-bold text-white mb-3">
+        Ошибка сервера
+      </h2>
+
+      <p className="text-gray-400 mb-2 max-w-md">
+        Что-то пошло не так на нашей стороне.
+      </p>
+      <p className="text-gray-500 text-sm mb-8 max-w-md">
+        Мы уже работаем над решением проблемы. Попробуйте обновить страницу.
+      </p>
+
+      {/* Status info */}
+      <div className="glass rounded-xl p-4 mb-8 max-w-md border border-red-500/20">
+        <div className="flex items-center gap-2 text-red-400 mb-2">
+          <ServerCrash className="w-4 h-4" />
+          <span className="text-sm font-semibold">Internal Server Error</span>
+        </div>
+        <p className="text-gray-400 text-sm">
+          Сервер временно недоступен или перегружен. Обычно это быстро исправляется.
+        </p>
+      </div>
+
+      {/* Buttons */}
+      <div className="flex gap-4">
+        <NeonButton
+          size="lg"
+          icon={<RefreshCw className="w-5 h-5" />}
+          onClick={handleRefresh}
+        >
+          Обновить
+        </NeonButton>
+        <Link to="/">
+          <NeonButton size="lg" variant="secondary" icon={<Home className="w-5 h-5" />}>
+            На главную
+          </NeonButton>
+        </Link>
+      </div>
+
+      {/* Decorative sparkles */}
+      <div className="absolute top-1/4 left-1/4 opacity-20">
+        <Sparkles className="w-6 h-6 text-red-400 animate-pulse" />
+      </div>
+      <div className="absolute bottom-1/3 right-1/4 opacity-20">
+        <Sparkles className="w-4 h-4 text-orange-400 animate-pulse" style={{ animationDelay: '1s' }} />
+      </div>
+
+      {/* Custom animations */}
+      <style>{`
+        @keyframes flicker {
+          0%, 100% {
+            transform: translateY(0) scale(1);
+            opacity: 0.6;
+          }
+          25% {
+            transform: translateY(-3px) scale(1.1);
+            opacity: 0.8;
+          }
+          50% {
+            transform: translateY(-1px) scale(0.9);
+            opacity: 0.5;
+          }
+          75% {
+            transform: translateY(-4px) scale(1.05);
+            opacity: 0.7;
+          }
+        }
+        .animate-flicker {
+          animation: flicker 0.8s ease-in-out infinite;
+        }
+        @keyframes spark {
+          0%, 100% {
+            opacity: 0;
+            transform: scale(0);
+          }
+          50% {
+            opacity: 1;
+            transform: scale(1);
+          }
+        }
+        .animate-spark {
+          animation: spark 1.5s ease-in-out infinite;
+        }
+      `}</style>
+    </div>
+  )
+}
diff --git a/frontend/src/pages/index.ts b/frontend/src/pages/index.ts
index 3c1da62..e72cdc9 100644
--- a/frontend/src/pages/index.ts
+++ b/frontend/src/pages/index.ts
@@ -11,3 +11,4 @@ export { ProfilePage } from './ProfilePage'
 export { UserProfilePage } from './UserProfilePage'
 export { NotFoundPage } from './NotFoundPage'
 export { TeapotPage } from './TeapotPage'
+export { ServerErrorPage } from './ServerErrorPage'