From 9646da833bc3d94564c10649b62a378d0190471e Mon Sep 17 00:00:00 2001
From: blackhao <13851610112@163.com>
Date: Wed, 10 Dec 2025 20:12:21 -0600
Subject: user data

---
 frontend/src/pages/AuthPage.tsx | 303 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 303 insertions(+)
 create mode 100644 frontend/src/pages/AuthPage.tsx

(limited to 'frontend/src/pages')

diff --git a/frontend/src/pages/AuthPage.tsx b/frontend/src/pages/AuthPage.tsx
new file mode 100644
index 0000000..d213190
--- /dev/null
+++ b/frontend/src/pages/AuthPage.tsx
@@ -0,0 +1,303 @@
+import React, { useState, useCallback } from 'react';
+import { useAuthStore } from '../store/authStore';
+import { Loader2, User, Mail, Lock, AlertCircle, CheckCircle, XCircle } from 'lucide-react';
+
+const API_BASE = 'http://localhost:8000';
+
+interface AuthPageProps {
+  onSuccess?: () => void;
+}
+
+const AuthPage: React.FC<AuthPageProps> = ({ onSuccess }) => {
+  const [isLogin, setIsLogin] = useState(true);
+  const [username, setUsername] = useState('');
+  const [email, setEmail] = useState('');
+  const [password, setPassword] = useState('');
+  const [confirmPassword, setConfirmPassword] = useState('');
+  const [localError, setLocalError] = useState('');
+  
+  // Real-time availability checks
+  const [usernameStatus, setUsernameStatus] = useState<'idle' | 'checking' | 'available' | 'taken'>('idle');
+  const [emailStatus, setEmailStatus] = useState<'idle' | 'checking' | 'available' | 'taken'>('idle');
+
+  const { login, register, isLoading, error, clearError } = useAuthStore();
+
+  // Check username availability
+  const checkUsername = useCallback(async (value: string) => {
+    if (!value.trim() || value.length < 2) {
+      setUsernameStatus('idle');
+      return;
+    }
+    setUsernameStatus('checking');
+    try {
+      const res = await fetch(`${API_BASE}/api/auth/check-username/${encodeURIComponent(value)}`);
+      const data = await res.json();
+      setUsernameStatus(data.available ? 'available' : 'taken');
+    } catch {
+      setUsernameStatus('idle');
+    }
+  }, []);
+
+  // Check email availability
+  const checkEmail = useCallback(async (value: string) => {
+    if (!value.trim() || !value.includes('@')) {
+      setEmailStatus('idle');
+      return;
+    }
+    setEmailStatus('checking');
+    try {
+      const res = await fetch(`${API_BASE}/api/auth/check-email/${encodeURIComponent(value)}`);
+      const data = await res.json();
+      setEmailStatus(data.available ? 'available' : 'taken');
+    } catch {
+      setEmailStatus('idle');
+    }
+  }, []);
+
+  const handleSubmit = async (e: React.FormEvent) => {
+    e.preventDefault();
+    setLocalError('');
+    clearError();
+
+    // Validation
+    if (!username.trim()) {
+      setLocalError('Username is required');
+      return;
+    }
+    if (!password) {
+      setLocalError('Password is required');
+      return;
+    }
+
+    if (!isLogin) {
+      if (!email.trim()) {
+        setLocalError('Email is required');
+        return;
+      }
+      if (password !== confirmPassword) {
+        setLocalError('Passwords do not match');
+        return;
+      }
+      if (password.length < 6) {
+        setLocalError('Password must be at least 6 characters');
+        return;
+      }
+      if (usernameStatus === 'taken') {
+        setLocalError('Username is already taken');
+        return;
+      }
+      if (emailStatus === 'taken') {
+        setLocalError('Email is already registered');
+        return;
+      }
+    }
+
+    try {
+      if (isLogin) {
+        await login(username, password);
+        onSuccess?.();
+      } else {
+        await register(username, email, password);
+        // Auto-login after successful registration
+        await login(username, password);
+        onSuccess?.();
+      }
+    } catch (err) {
+      // Error is handled by the store
+    }
+  };
+
+  const switchMode = () => {
+    setIsLogin(!isLogin);
+    setLocalError('');
+    clearError();
+    setPassword('');
+    setConfirmPassword('');
+    setUsernameStatus('idle');
+    setEmailStatus('idle');
+  };
+
+  const displayError = localError || error;
+
+  return (
+    <div className="min-h-screen flex items-center justify-center bg-gradient-to-br from-gray-900 via-gray-800 to-gray-900">
+      {/* Background pattern */}
+      <div className="absolute inset-0 overflow-hidden pointer-events-none">
+        <div className="absolute -top-1/2 -left-1/2 w-full h-full bg-gradient-to-br from-blue-500/10 to-transparent rounded-full blur-3xl" />
+        <div className="absolute -bottom-1/2 -right-1/2 w-full h-full bg-gradient-to-tl from-purple-500/10 to-transparent rounded-full blur-3xl" />
+      </div>
+
+      <div className="relative z-10 w-full max-w-md px-6">
+        {/* Logo/Brand */}
+        <div className="text-center mb-8">
+          <h1 className="text-4xl font-bold bg-gradient-to-r from-blue-400 to-purple-400 bg-clip-text text-transparent">
+            ContextFlow
+          </h1>
+          <p className="text-gray-400 mt-2">
+            {isLogin ? 'Welcome back!' : 'Create your account'}
+          </p>
+        </div>
+
+        {/* Card */}
+        <div className="bg-gray-800/50 backdrop-blur-xl border border-gray-700/50 rounded-2xl shadow-2xl p-8">
+          {/* Error Message */}
+          {displayError && (
+            <div className="mb-6 p-4 bg-red-500/10 border border-red-500/30 rounded-lg flex items-center gap-3">
+              <AlertCircle className="text-red-400 flex-shrink-0" size={20} />
+              <p className="text-red-400 text-sm">{displayError}</p>
+            </div>
+          )}
+
+          <form onSubmit={handleSubmit} className="space-y-5">
+            {/* Username */}
+            <div>
+              <label className="block text-sm font-medium text-gray-300 mb-2">
+                Username
+              </label>
+              <div className="relative">
+                <User className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500" size={18} />
+                <input
+                  type="text"
+                  value={username}
+                  onChange={(e) => {
+                    setUsername(e.target.value);
+                    if (!isLogin) setUsernameStatus('idle');
+                  }}
+                  onBlur={() => !isLogin && checkUsername(username)}
+                  placeholder="Enter your username"
+                  className={`w-full pl-10 pr-10 py-3 bg-gray-900/50 border rounded-lg text-white placeholder-gray-500 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-all ${
+                    !isLogin && usernameStatus === 'taken' ? 'border-red-500' : 
+                    !isLogin && usernameStatus === 'available' ? 'border-green-500' : 'border-gray-700'
+                  }`}
+                  autoComplete="username"
+                />
+                {!isLogin && usernameStatus !== 'idle' && (
+                  <div className="absolute right-3 top-1/2 -translate-y-1/2">
+                    {usernameStatus === 'checking' && <Loader2 className="animate-spin text-gray-400" size={18} />}
+                    {usernameStatus === 'available' && <CheckCircle className="text-green-500" size={18} />}
+                    {usernameStatus === 'taken' && <XCircle className="text-red-500" size={18} />}
+                  </div>
+                )}
+              </div>
+              {!isLogin && usernameStatus === 'taken' && (
+                <p className="text-red-400 text-xs mt-1">This username is already taken</p>
+              )}
+            </div>
+
+            {/* Email (only for register) */}
+            {!isLogin && (
+              <div>
+                <label className="block text-sm font-medium text-gray-300 mb-2">
+                  Email
+                </label>
+                <div className="relative">
+                  <Mail className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500" size={18} />
+                  <input
+                    type="email"
+                    value={email}
+                    onChange={(e) => {
+                      setEmail(e.target.value);
+                      setEmailStatus('idle');
+                    }}
+                    onBlur={() => checkEmail(email)}
+                    placeholder="Enter your email"
+                    className={`w-full pl-10 pr-10 py-3 bg-gray-900/50 border rounded-lg text-white placeholder-gray-500 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-all ${
+                      emailStatus === 'taken' ? 'border-red-500' : 
+                      emailStatus === 'available' ? 'border-green-500' : 'border-gray-700'
+                    }`}
+                    autoComplete="email"
+                  />
+                  {emailStatus !== 'idle' && (
+                    <div className="absolute right-3 top-1/2 -translate-y-1/2">
+                      {emailStatus === 'checking' && <Loader2 className="animate-spin text-gray-400" size={18} />}
+                      {emailStatus === 'available' && <CheckCircle className="text-green-500" size={18} />}
+                      {emailStatus === 'taken' && <XCircle className="text-red-500" size={18} />}
+                    </div>
+                  )}
+                </div>
+                {emailStatus === 'taken' && (
+                  <p className="text-red-400 text-xs mt-1">This email is already registered</p>
+                )}
+              </div>
+            )}
+
+            {/* Password */}
+            <div>
+              <label className="block text-sm font-medium text-gray-300 mb-2">
+                Password
+              </label>
+              <div className="relative">
+                <Lock className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500" size={18} />
+                <input
+                  type="password"
+                  value={password}
+                  onChange={(e) => setPassword(e.target.value)}
+                  placeholder="Enter your password"
+                  className="w-full pl-10 pr-4 py-3 bg-gray-900/50 border border-gray-700 rounded-lg text-white placeholder-gray-500 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-all"
+                  autoComplete={isLogin ? "current-password" : "new-password"}
+                />
+              </div>
+            </div>
+
+            {/* Confirm Password (only for register) */}
+            {!isLogin && (
+              <div>
+                <label className="block text-sm font-medium text-gray-300 mb-2">
+                  Confirm Password
+                </label>
+                <div className="relative">
+                  <Lock className="absolute left-3 top-1/2 -translate-y-1/2 text-gray-500" size={18} />
+                  <input
+                    type="password"
+                    value={confirmPassword}
+                    onChange={(e) => setConfirmPassword(e.target.value)}
+                    placeholder="Confirm your password"
+                    className="w-full pl-10 pr-4 py-3 bg-gray-900/50 border border-gray-700 rounded-lg text-white placeholder-gray-500 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-all"
+                    autoComplete="new-password"
+                  />
+                </div>
+              </div>
+            )}
+
+            {/* Submit Button */}
+            <button
+              type="submit"
+              disabled={isLoading}
+              className="w-full py-3 px-4 bg-gradient-to-r from-blue-600 to-purple-600 hover:from-blue-700 hover:to-purple-700 text-white font-medium rounded-lg transition-all duration-200 flex items-center justify-center gap-2 disabled:opacity-50 disabled:cursor-not-allowed shadow-lg shadow-blue-500/25"
+            >
+              {isLoading ? (
+                <>
+                  <Loader2 className="animate-spin" size={20} />
+                  <span>{isLogin ? 'Signing in...' : 'Creating account...'}</span>
+                </>
+              ) : (
+                <span>{isLogin ? 'Sign In' : 'Create Account'}</span>
+              )}
+            </button>
+          </form>
+
+          {/* Switch Mode */}
+          <div className="mt-6 text-center">
+            <p className="text-gray-400">
+              {isLogin ? "Don't have an account? " : "Already have an account? "}
+              <button
+                onClick={switchMode}
+                className="text-blue-400 hover:text-blue-300 font-medium transition-colors"
+              >
+                {isLogin ? 'Sign up' : 'Sign in'}
+              </button>
+            </p>
+          </div>
+        </div>
+
+        {/* Footer */}
+        <p className="text-center text-gray-500 text-sm mt-6">
+          Visual LLM Conversation Graph Editor
+        </p>
+      </div>
+    </div>
+  );
+};
+
+export default AuthPage;
+
-- 
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