'use client';

import { useState } from 'react';
import { useAuth } from '@/context/AuthContext';
import { useRouter } from 'next/navigation';
import { useEffect } from 'react';

export default function LoginPage() {
  const [email, setEmail] = useState('');
  const [password, setPassword] = useState('');
  const [error, setError] = useState('');
  const [isSubmitting, setIsSubmitting] = useState(false);
  const { login, isAuthenticated, isLoading } = useAuth();
  const router = useRouter();

  useEffect(() => {
    if (!isLoading && isAuthenticated) {
      router.push('/dashboard');
    }
  }, [isAuthenticated, isLoading, router]);

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

    try {
      await login(email, password);
    } catch (err) {
      setError(err instanceof Error ? err.message : 'Login failed');
    } finally {
      setIsSubmitting(false);
    }
  };

  if (isLoading) {
    return (
      <div className="min-h-screen flex items-center justify-center bg-gray-100">
        <div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600"></div>
      </div>
    );
  }

  return (
    <div className="min-h-screen flex items-center justify-center bg-gray-100">
      <div className="max-w-md w-full mx-4">
        <div className="bg-white rounded-lg shadow-lg p-8">
          {/* Header */}
          <div className="text-center mb-8">
            <div className="mx-auto w-16 h-16 bg-blue-600 rounded-full flex items-center justify-center mb-4">
              <svg
                className="w-8 h-8 text-white"
                fill="none"
                stroke="currentColor"
                viewBox="0 0 24 24"
              >
                <path
                  strokeLinecap="round"
                  strokeLinejoin="round"
                  strokeWidth={2}
                  d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z"
                />
              </svg>
            </div>
            <h1 className="text-2xl font-bold text-gray-900">Re-Quest Admin</h1>
            <p className="text-gray-500 mt-2">Re-Quest Platform Administration</p>
          </div>

          {/* Error Alert */}
          {error && (
            <div className="mb-6 p-4 bg-red-50 border border-red-200 rounded-lg">
              <div className="flex items-center">
                <svg
                  className="w-5 h-5 text-red-500 mr-2"
                  fill="currentColor"
                  viewBox="0 0 20 20"
                >
                  <path
                    fillRule="evenodd"
                    d="M10 18a8 8 0 100-16 8 8 0 000 16zM8.707 7.293a1 1 0 00-1.414 1.414L8.586 10l-1.293 1.293a1 1 0 101.414 1.414L10 11.414l1.293 1.293a1 1 0 001.414-1.414L11.414 10l1.293-1.293a1 1 0 00-1.414-1.414L10 8.586 8.707 7.293z"
                    clipRule="evenodd"
                  />
                </svg>
                <span className="text-red-700 text-sm">{error}</span>
              </div>
            </div>
          )}

          {/* Login Form */}
          <form onSubmit={handleSubmit} className="space-y-6">
            <div>
              <label
                htmlFor="email"
                className="block text-sm font-medium text-gray-700 mb-2"
              >
                Email Address
              </label>
              <input
                id="email"
                type="email"
                value={email}
                onChange={(e) => setEmail(e.target.value)}
                required
                className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500 transition-colors text-gray-900 placeholder:text-gray-400 bg-white"
                placeholder="admin@realestate.com"
              />
            </div>

            <div>
              <label
                htmlFor="password"
                className="block text-sm font-medium text-gray-700 mb-2"
              >
                Password
              </label>
              <input
                id="password"
                type="password"
                value={password}
                onChange={(e) => setPassword(e.target.value)}
                required
                className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-blue-500 focus:border-blue-500 transition-colors text-gray-900 placeholder:text-gray-400 bg-white"
                placeholder="Enter your password"
              />
            </div>

            <button
              type="submit"
              disabled={isSubmitting}
              className="w-full py-3 px-4 bg-blue-600 hover:bg-blue-700 disabled:bg-blue-400 text-white font-medium rounded-lg transition-colors flex items-center justify-center"
            >
              {isSubmitting ? (
                <>
                  <svg
                    className="animate-spin -ml-1 mr-2 h-5 w-5 text-white"
                    fill="none"
                    viewBox="0 0 24 24"
                  >
                    <circle
                      className="opacity-25"
                      cx="12"
                      cy="12"
                      r="10"
                      stroke="currentColor"
                      strokeWidth="4"
                    />
                    <path
                      className="opacity-75"
                      fill="currentColor"
                      d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
                    />
                  </svg>
                  Signing in...
                </>
              ) : (
                'Sign In'
              )}
            </button>
          </form>

          {/* Footer */}
          <div className="mt-6 text-center">
            <p className="text-xs text-gray-500">
              Only administrators can access this portal
            </p>
          </div>
        </div>
      </div>
    </div>
  );
}