import { useState } from "react";
import { signIn } from "next-auth/react";
import { useRouter } from "next/router";
import { toast } from "react-hot-toast";

export function AuthForm() {
  const router = useRouter();
  const [isLoading, setIsLoading] = useState(false);
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");

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

    try {
      const result = await signIn("credentials", {
        email,
        password,
        redirect: false,
      });

      if (result?.error) {
        toast.error("Credenciales inválidas");
        return;
      }

      toast.success("Sesión iniciada correctamente");
      router.push("/");
    } catch (error) {
      console.error("Error de autenticación:", error);
      toast.error("Error al iniciar sesión");
    } finally {
      setIsLoading(false);
    }
  };

  const handleGoogleSignIn = async () => {
    setIsLoading(true);
    try {
      await signIn("google", { callbackUrl: "/" });
    } catch (error) {
      console.error("Error de autenticación con Google:", error);
      toast.error("Error al iniciar sesión con Google");
      setIsLoading(false);
    }
  };

  const handleGithubSignIn = async () => {
    setIsLoading(true);
    try {
      await signIn("github", { callbackUrl: "/" });
    } catch (error) {
      console.error("Error de autenticación con GitHub:", error);
      toast.error("Error al iniciar sesión con GitHub");
      setIsLoading(false);
    }
  };

  return (
    <div className="w-full max-w-md mx-auto p-6 bg-white rounded-lg shadow-md dark:bg-gray-800">
      <h2 className="text-2xl font-semibold mb-6 text-center text-gray-900 dark:text-white">
        Iniciar sesión
      </h2>

      <div className="space-y-4 mb-6">
        <button
          type="button"
          onClick={handleGoogleSignIn}
          disabled={isLoading}
          className="w-full flex items-center justify-center gap-2 py-2 px-4 bg-white text-gray-800 border border-gray-300 rounded-md hover:bg-gray-50 dark:bg-gray-700 dark:text-white dark:border-gray-600 dark:hover:bg-gray-600"
        >
          <svg className="h-5 w-5" viewBox="0 0 24 24">
            <path
              d="M22.56 12.25c0-.78-.07-1.53-.2-2.25H12v4.26h5.92c-.26 1.37-1.04 2.53-2.21 3.31v2.77h3.57c2.08-1.92 3.28-4.74 3.28-8.09z"
              fill="#4285F4"
            />
            <path
              d="M12 23c2.97 0 5.46-.98 7.28-2.66l-3.57-2.77c-.98.66-2.23 1.06-3.71 1.06-2.86 0-5.29-1.93-6.16-4.53H2.18v2.84C3.99 20.53 7.7 23 12 23z"
              fill="#34A853"
            />
            <path
              d="M5.84 14.09c-.22-.66-.35-1.36-.35-2.09s.13-1.43.35-2.09V7.07H2.18C1.43 8.55 1 10.22 1 12s.43 3.45 1.18 4.93l2.85-2.22.81-.62z"
              fill="#FBBC05"
            />
            <path
              d="M12 5.38c1.62 0 3.06.56 4.21 1.64l3.15-3.15C17.45 2.09 14.97 1 12 1 7.7 1 3.99 3.47 2.18 7.07l3.66 2.84c.87-2.6 3.3-4.53 6.16-4.53z"
              fill="#EA4335"
            />
          </svg>
          Continuar con Google
        </button>

        <button
          type="button"
          onClick={handleGithubSignIn}
          disabled={isLoading}
          className="w-full flex items-center justify-center gap-2 py-2 px-4 bg-gray-900 text-white rounded-md hover:bg-gray-800 dark:bg-gray-600 dark:hover:bg-gray-500"
        >
          <svg className="h-5 w-5" viewBox="0 0 24 24" fill="currentColor">
            <path
              fillRule="evenodd"
              clipRule="evenodd"
              d="M12 2C6.477 2 2 6.477 2 12c0 4.42 2.865 8.167 6.839 9.49.5.092.682-.217.682-.482 0-.237-.008-.866-.013-1.7-2.782.603-3.369-1.342-3.369-1.342-.454-1.155-1.11-1.462-1.11-1.462-.908-.62.069-.608.069-.608 1.003.07 1.531 1.03 1.531 1.03.892 1.529 2.341 1.087 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.11-4.555-4.943 0-1.091.39-1.984 1.03-2.682-.103-.253-.447-1.27.098-2.646 0 0 .84-.269 2.75 1.025A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.294 2.747-1.025 2.747-1.025.546 1.376.202 2.394.1 2.646.64.699 1.026 1.591 1.026 2.682 0 3.841-2.337 4.687-4.565 4.935.359.309.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.019 10.019 0 0022 12c0-5.523-4.477-10-10-10z"
            />
          </svg>
          Continuar con GitHub
        </button>
      </div>

      <div className="relative mb-6">
        <div className="absolute inset-0 flex items-center">
          <div className="w-full border-t border-gray-300 dark:border-gray-600"></div>
        </div>
        <div className="relative flex justify-center text-sm">
          <span className="px-2 bg-white text-gray-500 dark:bg-gray-800 dark:text-gray-400">
            O continúa con
          </span>
        </div>
      </div>

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

        <div>
          <label
            htmlFor="password"
            className="block text-sm font-medium text-gray-700 dark:text-gray-300 mb-1"
          >
            Contraseña
          </label>
          <input
            id="password"
            type="password"
            value={password}
            onChange={(e) => setPassword(e.target.value)}
            required
            className="w-full px-4 py-2 border border-gray-300 rounded-md focus:outline-none focus:ring-2 focus:ring-blue-500 dark:bg-gray-700 dark:border-gray-600 dark:text-white"
          />
        </div>

        <button
          type="submit"
          disabled={isLoading}
          className="w-full py-2 px-4 bg-blue-600 text-white font-semibold rounded-md hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 disabled:opacity-50"
        >
          {isLoading ? "Cargando..." : "Iniciar sesión"}
        </button>
      </form>
    </div>
  );
}