/**
 * 认证页面 - 登录/注册
 */
'use client';

import { useState } from 'react';
import { useAuth } from '@/lib/hooks';
import { useRouter } from 'next/navigation';

export default function AuthPage() {
  const [isLogin, setIsLogin] = useState(true);
  const [email, setEmail] = useState('');
  const [username, setUsername] = useState('');
  const [password, setPassword] = useState('');
  const [error, setError] = useState('');
  const { login, register, isLoading } = useAuth();
  const router = useRouter();

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    setError('');

    try {
      console.log('[Auth] Submitting:', { isLogin, email });
      if (isLogin) {
        const response = await login(email, password);
        console.log('[Auth] Login response:', response);
      } else {
        const response = await register(email, username, password);
        console.log('[Auth] Register response:', response);
      }
      console.log('[Auth] Redirecting to home...');
      router.push('/');
    } catch (err) {
      console.error('[Auth] Error:', err);
      setError(err instanceof Error ? err.message : '操作失败');
    }
  };

  return (
    <div className="min-h-screen flex items-center justify-center bg-gray-50 dark:bg-gray-900 px-4">
      <div className="max-w-md w-full bg-white dark:bg-gray-800 rounded-lg shadow-md p-8">
        <h1 className="text-2xl font-bold text-center mb-6 text-gray-800 dark:text-white">
          {isLogin ? '登录' : '注册'} Novel Platform
        </h1>

        {error && (
          <div className="bg-red-100 border border-red-400 text-red-700 px-4 py-3 rounded mb-4">
            {error}
          </div>
        )}

        <form onSubmit={handleSubmit} className="space-y-4">
          <div>
            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
              邮箱
            </label>
            <input
              type="email"
              value={email}
              onChange={(e) => setEmail(e.target.value)}
              required
              className="w-full px-3 py-2 border dark:border-gray-600 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
            />
          </div>

          {!isLogin && (
            <div>
              <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
                用户名
              </label>
              <input
                type="text"
                value={username}
                onChange={(e) => setUsername(e.target.value)}
                required
                className="w-full px-3 py-2 border dark:border-gray-600 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
              />
            </div>
          )}

          <div>
            <label className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1">
              密码
            </label>
            <input
              type="password"
              value={password}
              onChange={(e) => setPassword(e.target.value)}
              required
              className="w-full px-3 py-2 border dark:border-gray-600 rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:text-white"
            />
          </div>

          <button
            type="submit"
            disabled={isLoading}
            className="w-full py-2 px-4 bg-blue-500 text-white rounded-lg hover:bg-blue-600 disabled:bg-gray-300 disabled:cursor-not-allowed transition-colors"
          >
            {isLoading ? '处理中...' : isLogin ? '登录' : '注册'}
          </button>
        </form>

        <div className="mt-4 text-center">
          <button
            type="button"
            onClick={() => setIsLogin(!isLogin)}
            className="text-blue-500 hover:text-blue-600 text-sm"
          >
            {isLogin ? '没有账号？去注册' : '已有账号？去登录'}
          </button>
        </div>
      </div>
    </div>
  );
}