import React, { useState, useEffect } from 'react';
import { useNavigate, useLocation, Link } from 'react-router-dom';
import { Hexagon, Lock, ArrowRight, Loader2, CheckCircle2, AlertCircle } from 'lucide-react';
import { resetPassword } from '../services/dataService';

export const ResetPassword: React.FC = () => {
  const navigate = useNavigate();
  const location = useLocation();
  const query = new URLSearchParams(location.search);
  const token = query.get('token') || '';

  const [password, setPassword] = useState('');
  const [confirmPassword, setConfirmPassword] = useState('');
  const [isLoading, setIsLoading] = useState(false);
  const [isSuccess, setIsSuccess] = useState(false);
  const [error, setError] = useState('');

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    if (password !== confirmPassword) {
      setError('As senhas não coincidem.');
      return;
    }

    setIsLoading(true);
    setError('');

    try {
      await resetPassword(token, password);
      setIsSuccess(true);
      setTimeout(() => navigate('/login'), 3000);
    } catch (err: any) {
      setError(err.message || 'Erro ao redefinir senha. O link pode estar expirado.');
    } finally {
      setIsLoading(false);
    }
  };

  return (
    <div className="min-h-screen bg-zinc-50 dark:bg-dark-bg flex flex-col justify-center py-12 sm:px-6 lg:px-8 transition-colors duration-300">
      <div className="sm:mx-auto sm:w-full sm:max-w-md">
        <div className="flex justify-center items-center gap-2 text-zinc-900 dark:text-zinc-50">
          <div className="bg-zinc-900 dark:bg-brand-yellow text-white dark:text-zinc-950 p-2 rounded-lg transition-colors">
            <Hexagon size={32} fill="currentColor" />
          </div>
          <span className="text-3xl font-bold tracking-tight">Fasto<span className="text-brand-yellow">.</span></span>
        </div>
        <h2 className="mt-6 text-center text-3xl font-bold tracking-tight text-zinc-900 dark:text-zinc-50">
          Crie uma nova senha
        </h2>
      </div>

      <div className="mt-8 sm:mx-auto sm:w-full sm:max-w-md">
        <div className="bg-white dark:bg-dark-card py-8 px-4 shadow-xl rounded-2xl sm:px-10 border border-zinc-100 dark:border-dark-border transition-colors">
          {isSuccess ? (
            <div className="text-center py-4 space-y-4 animate-in fade-in zoom-in duration-300">
              <div className="mx-auto flex items-center justify-center h-12 w-12 rounded-full bg-green-100 dark:bg-green-900/30 text-green-600 dark:text-green-400">
                <CheckCircle2 size={24} />
              </div>
              <h3 className="text-lg font-bold text-zinc-900 dark:text-zinc-50">Senha alterada!</h3>
              <p className="text-sm text-zinc-600 dark:text-dark-muted">
                Sua senha foi redefinida com sucesso. Redirecionando para o login...
              </p>
            </div>
          ) : (
            <form className="space-y-6" onSubmit={handleSubmit}>
              {error && (
                <div className="bg-red-50 dark:bg-red-900/20 border border-red-100 dark:border-red-900/30 p-3 rounded-lg flex items-center gap-2 text-red-600 dark:text-red-400 text-sm">
                  <AlertCircle size={18} />
                  {error}
                </div>
              )}

              <div>
                <label htmlFor="password" senior-admin-password className="block text-sm font-medium text-zinc-700 dark:text-zinc-300">
                  Nova Senha
                </label>
                <div className="mt-1 relative">
                  <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
                    <Lock className="h-5 w-5 text-zinc-400 dark:text-dark-muted" />
                  </div>
                  <input
                    id="password"
                    type="password"
                    required
                    value={password}
                    onChange={(e) => setPassword(e.target.value)}
                    className="block w-full pl-10 pr-3 py-2 border border-zinc-300 dark:border-dark-border rounded-lg bg-white dark:bg-dark-input text-zinc-900 dark:text-zinc-100 placeholder-zinc-400 dark:placeholder-zinc-600 focus:ring-brand-yellow/20 focus:border-brand-yellow sm:text-sm transition-all"
                    placeholder="••••••••"
                  />
                </div>
              </div>

              <div>
                <label htmlFor="confirmPassword" senior-admin-password className="block text-sm font-medium text-zinc-700 dark:text-zinc-300">
                  Confirmar Nova Senha
                </label>
                <div className="mt-1 relative">
                  <div className="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
                    <Lock className="h-5 w-5 text-zinc-400 dark:text-dark-muted" />
                  </div>
                  <input
                    id="confirmPassword"
                    type="password"
                    required
                    value={confirmPassword}
                    onChange={(e) => setConfirmPassword(e.target.value)}
                    className="block w-full pl-10 pr-3 py-2 border border-zinc-300 dark:border-dark-border rounded-lg bg-white dark:bg-dark-input text-zinc-900 dark:text-zinc-100 placeholder-zinc-400 dark:placeholder-zinc-600 focus:ring-brand-yellow/20 focus:border-brand-yellow sm:text-sm transition-all"
                    placeholder="••••••••"
                  />
                </div>
              </div>

              <div>
                <button
                  type="submit"
                  disabled={isLoading}
                  className="w-full flex justify-center items-center gap-2 py-2.5 px-4 border border-transparent rounded-lg shadow-sm text-sm font-bold text-zinc-950 bg-brand-yellow hover:bg-yellow-500 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-brand-yellow transition-all disabled:opacity-50"
                >
                  {isLoading ? (
                    <Loader2 className="animate-spin h-5 w-5" />
                  ) : (
                    <>
                      Redefinir Senha <ArrowRight size={18} />
                    </>
                  )}
                </button>
              </div>
            </form>
          )}
        </div>
      </div>
    </div>
  );
};