import React, { useState } from 'react';
import { Link } from 'react-router-dom';
import { useAuth } from '../../contexts/AuthContext';

const LoginForm: React.FC = () => {
  const { login } = useAuth();
  const [formData, setFormData] = useState({
    email: '',
    password: '',
  });
  const [isLoading, setIsLoading] = useState(false);
  const [error, setError] = useState<string | null>(null);
  const [showPassword, setShowPassword] = useState(false);

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

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

  const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
    setFormData(prev => ({
      ...prev,
      [e.target.name]: e.target.value
    }));
  };

  return (
    <div className="bg-white dark:bg-surface-800 p-8 rounded-2xl shadow-xl border border-surface-200 dark:border-surface-700 transition-colors">
      {/* Logo Section */}
      <div className="text-center mb-8">
        <div className="w-16 h-16 bg-gradient-to-r from-primary-500 to-accent-500 rounded-2xl flex items-center justify-center mx-auto mb-4 shadow-lg">
          <svg className="w-8 h-8 text-white" fill="currentColor" viewBox="0 0 20 20">
            <path d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10" />
          </svg>
        </div>
        <h1 className="text-2xl font-bold text-surface-900 dark:text-white mb-2">
          Welcome Back
        </h1>
        <p className="text-surface-600 dark:text-surface-400">
          Sign in to your TCG Vault
        </p>
      </div>

      {error && (
        <div className="mb-6 p-4 bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-xl">
          <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 dark:text-red-400 text-sm">{error}</span>
          </div>
        </div>
      )}

      <form onSubmit={handleSubmit} className="space-y-6">
        <div>
          <label htmlFor="email" className="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-2">
            Email Address
          </label>
          <div className="relative">
            <input
              type="email"
              id="email"
              name="email"
              value={formData.email}
              onChange={handleChange}
              className="w-full px-4 py-3 bg-surface-50 dark:bg-surface-700 border border-surface-300 dark:border-surface-600 rounded-xl text-surface-900 dark:text-white placeholder-surface-500 dark:placeholder-surface-400 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent transition-colors"
              placeholder="Enter your email"
              required
            />
            <svg className="absolute right-3 top-1/2 transform -translate-y-1/2 w-5 h-5 text-surface-400 dark:text-surface-500" fill="none" stroke="currentColor" viewBox="0 0 24 24">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M16 12a4 4 0 10-8 0 4 4 0 008 0zm0 0v1.5a2.5 2.5 0 005 0V12a9 9 0 10-9 9m4.5-1.206a8.959 8.959 0 01-4.5 1.207" />
            </svg>
          </div>
        </div>

        <div>
          <label htmlFor="password" className="block text-sm font-medium text-surface-700 dark:text-surface-300 mb-2">
            Password
          </label>
          <div className="relative">
            <input
              type={showPassword ? 'text' : 'password'}
              id="password"
              name="password"
              value={formData.password}
              onChange={handleChange}
              className="w-full px-4 py-3 bg-surface-50 dark:bg-surface-700 border border-surface-300 dark:border-surface-600 rounded-xl text-surface-900 dark:text-white placeholder-surface-500 dark:placeholder-surface-400 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent transition-colors pr-12"
              placeholder="Enter your password"
              required
            />
            <button
              type="button"
              onClick={() => setShowPassword(!showPassword)}
              className="absolute right-3 top-1/2 transform -translate-y-1/2 text-surface-400 dark:text-surface-500 hover:text-surface-600 dark:hover:text-surface-300 transition-colors"
            >
              {showPassword ? (
                <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13.875 18.825A10.05 10.05 0 0112 19c-4.478 0-8.268-2.943-9.543-7a9.97 9.97 0 011.563-3.029m5.858.908a3 3 0 114.243 4.243M9.878 9.878l4.242 4.242M9.878 9.878L3 3m6.878 6.878L21 21" />
                </svg>
              ) : (
                <svg className="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z" />
                </svg>
              )}
            </button>
          </div>
        </div>

        <button
          type="submit"
          disabled={isLoading}
          className="w-full bg-gradient-to-r from-primary-500 to-accent-500 hover:from-primary-600 hover:to-accent-600 disabled:from-surface-400 disabled:to-surface-400 text-white font-semibold py-3 px-4 rounded-xl transition-all duration-200 shadow-lg hover:shadow-xl disabled:shadow-none transform hover:-translate-y-0.5 disabled:transform-none"
        >
          {isLoading ? (
            <div className="flex items-center justify-center">
              <svg className="animate-spin -ml-1 mr-3 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"></circle>
                <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"></path>
              </svg>
              Signing In...
            </div>
          ) : (
            'Sign In'
          )}
        </button>

        <div className="text-center">
          <p className="text-surface-600 dark:text-surface-400">
            Don&apos;t have an account?{' '}
            <Link
              to="/register"
              className="text-primary-600 dark:text-primary-400 hover:text-primary-700 dark:hover:text-primary-300 font-medium transition-colors"
            >
              Sign up
            </Link>
          </p>
        </div>
      </form>
    </div>
  );
};

export default LoginForm; 