feat: implement admin and OIDC authentication methods; add login and user info endpoints

Signed-off-by: Noste <83548733+Noooste@users.noreply.github.com>

frontend/src/components/auth/BasicLoginForm.tsx

@@ -0,0 +1,118 @@
+import { useState } from 'react';
+import { useNavigate, useSearchParams } from 'react-router-dom';
+import { useAuthStore } from '@/store/auth-store';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
+import { Lock, LogIn } from 'lucide-react';
+import type { AuthConfig } from '@/types/auth';
+
+interface BasicLoginFormProps {
+  showOIDC?: boolean;
+  config?: AuthConfig | null;
+}
+
+export function BasicLoginForm({ showOIDC = false, config }: BasicLoginFormProps) {
+  const [username, setUsername] = useState('');
+  const [password, setPassword] = useState('');
+  const [isLoading, setIsLoading] = useState(false);
+  const [searchParams] = useSearchParams();
+  const navigate = useNavigate();
+  const { loginAdmin, loginOIDC } = useAuthStore();
+
+  const returnUrl = searchParams.get('returnUrl') || '/';
+  const providerName = config?.oidc?.provider || 'OIDC Provider';
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setIsLoading(true);
+
+    try {
+      await loginAdmin(username, password);
+      // Navigate to return URL on success
+      navigate(decodeURIComponent(returnUrl));
+    } catch (error) {
+      // Error is already handled by the store and toast
+      console.error('Login failed:', error);
+    } finally {
+      setIsLoading(false);
+    }
+  };
+
+  return (
+    <Card className="w-full">
+      <CardHeader className="space-y-1">
+        <div className="flex items-center justify-center mb-4">
+          <div className="flex h-12 w-12 items-center justify-center rounded-full bg-primary/10">
+            <Lock className="h-6 w-6 text-primary" />
+          </div>
+        </div>
+        <CardTitle className="text-2xl text-center">
+          {showOIDC ? 'Sign in to Garage UI' : 'Admin Login'}
+        </CardTitle>
+        <CardDescription className="text-center">
+          {showOIDC ? 'Enter your credentials or use SSO' : 'Enter your credentials to access the dashboard'}
+        </CardDescription>
+      </CardHeader>
+      <CardContent>
+        <form onSubmit={handleSubmit} className="space-y-4">
+          <div className="space-y-2">
+            <label htmlFor="username" className="text-sm font-medium">Username</label>
+            <Input
+              id="username"
+              type="text"
+              placeholder="Enter your username"
+              value={username}
+              onChange={(e) => setUsername(e.target.value)}
+              required
+              disabled={isLoading}
+              autoComplete="username"
+            />
+          </div>
+          <div className="space-y-2">
+            <label htmlFor="password" className="text-sm font-medium">Password</label>
+            <Input
+              id="password"
+              type="password"
+              placeholder="Enter your password"
+              value={password}
+              onChange={(e) => setPassword(e.target.value)}
+              required
+              disabled={isLoading}
+              autoComplete="current-password"
+            />
+          </div>
+          <Button
+            type="submit"
+            className="w-full"
+            disabled={isLoading || !username || !password}
+          >
+            {isLoading ? 'Signing in...' : 'Sign in'}
+          </Button>
+        </form>
+
+        {showOIDC && (
+          <div className="mt-4">
+            <div className="relative mb-4">
+              <div className="absolute inset-0 flex items-center">
+                <span className="w-full border-t" />
+              </div>
+              <div className="relative flex justify-center text-xs uppercase">
+                <span className="bg-card px-2 text-muted-foreground">Or</span>
+              </div>
+            </div>
+            <Button
+              type="button"
+              variant="outline"
+              className="w-full"
+              onClick={loginOIDC}
+            >
+              <LogIn className="mr-2 h-4 w-4" />
+              Sign in with {providerName}
+            </Button>
+          </div>
+        )}
+      </CardContent>
+    </Card>
+  );
+}

frontend/src/components/auth/LoadingSpinner.tsx

@@ -0,0 +1,12 @@
+import { Loader2 } from 'lucide-react';
+
+export function LoadingSpinner() {
+  return (
+    <div className="flex h-screen w-full items-center justify-center">
+      <div className="flex flex-col items-center gap-4">
+        <Loader2 className="h-8 w-8 animate-spin text-primary" />
+        <p className="text-sm text-muted-foreground">Loading...</p>
+      </div>
+    </div>
+  );
+}

frontend/src/components/auth/OIDCLoginView.tsx

@@ -0,0 +1,41 @@
+import { useAuthStore } from '@/store/auth-store';
+import { Button } from '@/components/ui/button';
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
+import { LogIn } from 'lucide-react';
+
+export function OIDCLoginView() {
+  const { config, loginOIDC } = useAuthStore();
+
+  const providerName = config?.oidc.provider || 'OIDC Provider';
+
+  return (
+    <div className="flex min-h-screen items-center justify-center bg-background p-4">
+      <Card className="w-full max-w-md">
+        <CardHeader className="space-y-1">
+          <div className="flex items-center justify-center mb-4">
+            <div className="flex h-12 w-12 items-center justify-center rounded-full bg-primary/10">
+              <LogIn className="h-6 w-6 text-primary" />
+            </div>
+          </div>
+          <CardTitle className="text-2xl text-center">Sign in to Garage UI</CardTitle>
+          <CardDescription className="text-center">
+            Authenticate using your {providerName} account
+          </CardDescription>
+        </CardHeader>
+        <CardContent>
+          <Button
+            onClick={loginOIDC}
+            className="w-full"
+            size="lg"
+          >
+            <LogIn className="mr-2 h-5 w-5" />
+            Continue with {providerName}
+          </Button>
+          <p className="mt-4 text-center text-xs text-muted-foreground">
+            You will be redirected to {providerName} to complete the sign-in process
+          </p>
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

frontend/src/components/auth/ProtectedRoute.tsx

@@ -0,0 +1,29 @@
+import { Navigate, useLocation } from 'react-router-dom';
+import { useAuthStore } from '@/store/auth-store';
+import { LoadingSpinner } from './LoadingSpinner';
+
+interface ProtectedRouteProps {
+  children: React.ReactNode;
+}
+
+export function ProtectedRoute({ children }: ProtectedRouteProps) {
+  const { isAuthenticated, isLoading, config } = useAuthStore();
+  const location = useLocation();
+
+  if (isLoading) {
+    return <LoadingSpinner />;
+  }
+
+  // If no auth is enabled, always allow access
+  if (config && !config.admin.enabled && !config.oidc.enabled) {
+    return <>{children}</>;
+  }
+
+  // If not authenticated, redirect to login with return URL
+  if (!isAuthenticated) {
+    const returnUrl = encodeURIComponent(location.pathname + location.search);
+    return <Navigate to={`/login?returnUrl=${returnUrl}`} replace />;
+  }
+
+  return <>{children}</>;
+}