import type { Route } from "./+types/verify";
import {
  ArrowLeft,
  CheckCircleIcon,
  LoaderIcon,
  RefreshCwIcon,
} from "lucide-react";
import { useEffect, useState } from "react";
import { useNavigate } from "react-router";
import { useSearchParams } from "react-router";
import OtpInput from "~/components/input-otp";
import { Alert, AlertDescription } from "~/components/ui/alert";
import { Button } from "~/components/ui/button";
import AuthLayout from "~/layout";

export function meta({}: Route.MetaArgs) {
  return [
    { title: "Khollisé - Connexion" },
    { name: "description", content: "Connectez-vous à Khollisé" },
  ];
}

export default function Verify() {
  const navigate = useNavigate();
  const [searchParams] = useSearchParams()
  const email = searchParams.get("email");
  if (!email) {
    // TODO: Redirect to login page
    return
  }

  const [isResending, setIsResending] = useState(false);
  const [resendSuccess, setResendSuccess] = useState(false);
  const [cooldown, setCooldown] = useState(0);
  const [otpError, setOtpError] = useState<string | null>(null);

  // Countdown for the resend button
  useEffect(() => {
    if (cooldown <= 0) return;

    const timer = setInterval(() => {
      setCooldown((prev) => Math.max(0, prev - 1));
    }, 1000);

    return () => clearInterval(timer);
  }, [cooldown]);

  const handleResendOtp = async () => {
    if (cooldown > 0) return;

    setIsResending(true);
    setResendSuccess(false);

    try {
      // Appeler l'API pour renvoyer un code OTP
      const response = await fetch("/api/auth/resend-otp", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify({ email }),
      });

      const data = await response.json();

      if (!response.ok) {
        throw new Error(data.error || "Échec de l'envoi du nouveau code");
      }

      // Afficher le message de succès
      setResendSuccess(true);
      // Démarrer le cooldown (60 secondes)
      setCooldown(60);
    } catch (error) {
      console.error("Erreur lors de la demande d'un nouveau code:", error);
      setOtpError(
        error instanceof Error
          ? error.message
          : "Échec de l'envoi du nouveau code"
      );
    } finally {
      setIsResending(false);
    }
  };

  return (
    <AuthLayout>
      <div className="space-y-4">
        <Alert className="bg-green-50 border-green-200 pb-2">
          <CheckCircleIcon className="h-4 w-4 text-green-600" />
          <AlertDescription className="text-green-600">
            Nous avons envoyé un email à <strong>{email}</strong>
          </AlertDescription>
        </Alert>

        <div className="space-y-2 mt-4">
          <h3 className="font-medium">Que se passe-t-il ensuite ?</h3>
          <ul className="list-disc pl-5 space-y-1 text-sm">
            <li>Consultez votre email (vérifiez le dossier spam)</li>
            <li>
              Cliquez sur le lien pour vous connecter ou entrez le code à 6
              chiffres
            </li>
          </ul>
        </div>

        <div className="mt-6 border-t pt-4">
          <h3 className="text-sm text-center font-medium mb-2">
            Entrez le code de vérification
          </h3>
          <OtpInput
            email={email}
            setOtpError={setOtpError}
            otpError={otpError}
          />

          {resendSuccess && (
            <Alert className="bg-green-50 border-green-200 mt-2">
              <CheckCircleIcon className="h-4 w-4 text-green-600" />
              <AlertDescription className="text-green-600">
                Un nouveau code a été envoyé à votre adresse email
              </AlertDescription>
            </Alert>
          )}

          <div className="flex justify-between mt-4">
            <Button
              className="flex items-center text-sm"
              size="sm"
              variant="ghost"
              onClick={() => navigate("/")}
            >
              <ArrowLeft className="h-4 w-4" />
              Retour
            </Button>

            <Button
              type="button"
              variant="secondary"
              size="sm"
              onClick={handleResendOtp}
              disabled={cooldown > 0 || isResending}
              className="flex items-center text-sm"
            >
              {isResending ? (
                <>
                  <LoaderIcon className="h-4 w-4 animate-spin" />
                  Envoi en cours...
                </>
              ) : cooldown > 0 ? (
                <>
                  <RefreshCwIcon className="h-4 w-4" />
                  Renvoyer le code ({cooldown}s)
                </>
              ) : (
                <>
                  <RefreshCwIcon className="h-4 w-4" />
                  Renvoyer le code
                </>
              )}
            </Button>
          </div>
        </div>
      </div>
    </AuthLayout>
  );
}