"use client";
import { useState, useRef } from "react";
import { useForm } from "react-hook-form";
import { zodResolver } from "@hookform/resolvers/zod";
import { useAuth } from "@/contexts/AuthContext";
import { registerSchema, RegisterFormData } from "@/lib/validations";
import Link from "next/link";
import TeaIconsBackground from "@/components/TeaIconsBackground";
import { ROUTES } from "@/utils/constants";
import ReCAPTCHA from "react-google-recaptcha";

export default function RegisterPage() {
  const { register: registerUser } = useAuth();
  const [isSubmitting, setIsSubmitting] = useState(false);
  const [showPassword, setShowPassword] = useState(false);
  const [showConfirmPassword, setShowConfirmPassword] = useState(false);
  const [animationKey] = useState(Date.now());
  const [captchaToken, setCaptchaToken] = useState<string | null>(null);
  const [captchaError, setCaptchaError] = useState(false);
  const recaptchaRef = useRef<ReCAPTCHA>(null);

  const {
    register,
    handleSubmit,
    formState: { errors },
  } = useForm<RegisterFormData>({
    resolver: zodResolver(registerSchema),
  });

  const onCaptchaChange = (token: string | null) => {
    setCaptchaToken(token);
    setCaptchaError(false);
  };

  const onSubmit = async (data: RegisterFormData) => {
    // Vérifier le captcha
    if (!captchaToken) {
      setCaptchaError(true);
      return;
    }

    setIsSubmitting(true);
    try {
      await registerUser({ ...data, captchaToken });
    } catch (error) {
      console.error("Registration error:", error);
      // Reset captcha en cas d'erreur
      recaptchaRef.current?.reset();
      setCaptchaToken(null);
    } finally {
      setIsSubmitting(false);
    }
  };

  return (
    <div className="min-h-screen relative flex items-center justify-center py-12 px-4">
      <TeaIconsBackground animationKey={animationKey} />

      <div className="w-full max-w-md relative z-10">

        {/* Title */}
        <div className="text-center mb-8">
          <h1 className="text-4xl font-bold text-gray-900 mb-2">Inscription</h1>
          <p className="text-gray-600">
            Créez un compte pour participer au jeu-concours
          </p>
        </div>

        {/* Main Card */}
        <div className="bg-white rounded-xl shadow-md overflow-hidden">

          {/* Tabs */}
          <div className="flex border-b border-gray-200">
            <Link
              href={ROUTES.LOGIN}
              className="flex-1 py-4 px-6 text-center font-semibold text-gray-500 bg-gray-50 hover:bg-gradient-to-r hover:from-[#d4a574]/5 hover:to-[#c4956a]/5 hover:text-[#c4956a] transition-all duration-300 hover:shadow-inner"
            >
              Connexion
            </Link>
            <button className="flex-1 py-4 px-6 text-center font-bold text-gray-900 bg-white border-b-3 border-[#d4a574] shadow-[0_3px_8px_rgba(212,165,116,0.3)] relative">
              <span className="relative z-10">Inscription</span>
              <div className="absolute bottom-0 left-0 right-0 h-0.5 bg-gradient-to-r from-transparent via-[#d4a574] to-transparent"></div>
            </button>
          </div>

          {/* Form Container */}
          <div className="p-8">

            {/* Registration Form */}
            <form onSubmit={handleSubmit(onSubmit)} className="space-y-5">

              {/* Prénom et Nom */}
              <div className="grid grid-cols-2 gap-4">
                <div>
                  <label htmlFor="firstName" className="block text-sm font-semibold text-gray-700 mb-2">
                    Prénom <span className="text-red-500">*</span>
                  </label>
                  <input
                    id="firstName"
                    type="text"
                    placeholder="prénom"
                    {...register("firstName")}
                    className={`w-full px-4 py-3 border ${errors.firstName ? 'border-red-500' : 'border-gray-300'} rounded-lg focus:outline-none focus:ring-2 focus:ring-[#d4a574] focus:border-transparent`}
                  />
                  {errors.firstName && (
                    <p className="mt-1 text-sm text-red-500">{errors.firstName.message}</p>
                  )}
                </div>

                <div>
                  <label htmlFor="lastName" className="block text-sm font-semibold text-gray-700 mb-2">
                    Nom <span className="text-red-500">*</span>
                  </label>
                  <input
                    id="lastName"
                    type="text"
                    placeholder="nom"
                    {...register("lastName")}
                    className={`w-full px-4 py-3 border ${errors.lastName ? 'border-red-500' : 'border-gray-300'} rounded-lg focus:outline-none focus:ring-2 focus:ring-[#d4a574] focus:border-transparent`}
                  />
                  {errors.lastName && (
                    <p className="mt-1 text-sm text-red-500">{errors.lastName.message}</p>
                  )}
                </div>
              </div>

              {/* Email */}
              <div>
                <label htmlFor="email" className="block text-sm font-semibold text-gray-700 mb-2">
                  Email <span className="text-red-500">*</span>
                </label>
                <input
                  id="email"
                  type="email"
                  placeholder="email"
                  {...register("email")}
                  className={`w-full px-4 py-3 border ${errors.email ? 'border-red-500' : 'border-gray-300'} rounded-lg focus:outline-none focus:ring-2 focus:ring-[#d4a574] focus:border-transparent`}
                />
                {errors.email && (
                  <p className="mt-1 text-sm text-red-500">{errors.email.message}</p>
                )}
              </div>

              {/* Téléphone */}
              <div>
                <label htmlFor="phone" className="block text-sm font-semibold text-gray-700 mb-2">
                  Téléphone
                </label>
                <input
                  id="phone"
                  type="tel"
                  placeholder="téléphone"
                  {...register("phone")}
                  className={`w-full px-4 py-3 border ${errors.phone ? 'border-red-500' : 'border-gray-300'} rounded-lg focus:outline-none focus:ring-2 focus:ring-[#d4a574] focus:border-transparent`}
                />
                <p className="mt-1 text-xs text-gray-500">Optionnel - Format: 06 12 34 56 78</p>
                {errors.phone && (
                  <p className="mt-1 text-sm text-red-500">{errors.phone.message}</p>
                )}
              </div>

              {/* Mot de passe */}
              <div>
                <label htmlFor="password" className="block text-sm font-semibold text-gray-700 mb-2">
                  Mot de passe <span className="text-red-500">*</span>
                </label>
                <div className="relative">
                  <input
                    id="password"
                    type={showPassword ? "text" : "password"}
                    placeholder="mot de passe"
                    {...register("password")}
                    className={`w-full px-4 py-3 border ${errors.password ? 'border-red-500' : 'border-gray-300'} rounded-lg focus:outline-none focus:ring-2 focus:ring-[#d4a574] focus:border-transparent pr-12`}
                  />
                  <button
                    type="button"
                    onClick={() => setShowPassword(!showPassword)}
                    className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-500 hover:text-gray-700"
                  >
                    {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 4.242M9.88 9.88l-3.29-3.29m7.532 7.532l3.29 3.29M3 3l3.59 3.59m0 0A9.953 9.953 0 0112 5c4.478 0 8.268 2.943 9.543 7a10.025 10.025 0 01-4.132 5.411m0 0L21 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>
                <p className="mt-1 text-xs text-gray-500">Min. 8 caractères, 1 majuscule, 1 minuscule, 1 chiffre</p>
                {errors.password && (
                  <p className="mt-1 text-sm text-red-500">{errors.password.message}</p>
                )}
              </div>

              {/* Confirmer mot de passe */}
              <div>
                <label htmlFor="confirmPassword" className="block text-sm font-semibold text-gray-700 mb-2">
                  Confirmer le mot de passe <span className="text-red-500">*</span>
                </label>
                <div className="relative">
                  <input
                    id="confirmPassword"
                    type={showConfirmPassword ? "text" : "password"}
                    placeholder="confirmer mot de passe"
                    {...register("confirmPassword")}
                    className={`w-full px-4 py-3 border ${errors.confirmPassword ? 'border-red-500' : 'border-gray-300'} rounded-lg focus:outline-none focus:ring-2 focus:ring-[#d4a574] focus:border-transparent pr-12`}
                  />
                  <button
                    type="button"
                    onClick={() => setShowConfirmPassword(!showConfirmPassword)}
                    className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-500 hover:text-gray-700"
                  >
                    {showConfirmPassword ? (
                      <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 4.242M9.88 9.88l-3.29-3.29m7.532 7.532l3.29 3.29M3 3l3.59 3.59m0 0A9.953 9.953 0 0112 5c4.478 0 8.268 2.943 9.543 7a10.025 10.025 0 01-4.132 5.411m0 0L21 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>
                {errors.confirmPassword && (
                  <p className="mt-1 text-sm text-red-500">{errors.confirmPassword.message}</p>
                )}
              </div>

              {/* Checkbox CGU */}
              <div className="flex items-start gap-3">
                <input
                  id="terms"
                  type="checkbox"
                  required
                  className="mt-1 w-5 h-5 text-[#d4a574] border-gray-300 rounded focus:ring-2 focus:ring-[#d4a574]"
                />
                <label htmlFor="terms" className="text-sm text-gray-700 select-none cursor-pointer">
                  J'accepte les{' '}
                  <Link href="/terms" className="text-[#5a5a4e] underline hover:text-[#d4a574]">
                    conditions d'utilisation
                  </Link>{' '}
                  et la{' '}
                  <Link href="/privacy" className="text-[#5a5a4e] underline hover:text-[#d4a574]">
                    politique de confidentialité
                  </Link>{' '}
                  <span className="text-red-500">*</span>
                </label>
              </div>

              {/* reCAPTCHA */}
              <div className="flex flex-col items-center">
                <ReCAPTCHA
                  ref={recaptchaRef}
                  sitekey={process.env.NEXT_PUBLIC_RECAPTCHA_SITE_KEY || ""}
                  onChange={onCaptchaChange}
                  onExpired={() => setCaptchaToken(null)}
                />
                {captchaError && (
                  <p className="mt-2 text-sm text-red-500">Veuillez confirmer que vous n'êtes pas un robot</p>
                )}
              </div>

              {/* Submit Button */}
              <button
                type="submit"
                disabled={isSubmitting}
                className="w-full bg-gradient-to-r from-[#d4a574] to-[#c4956a] hover:from-[#e5b685] hover:to-[#d4a574] disabled:bg-gray-400 disabled:from-gray-400 disabled:to-gray-400 text-white font-bold px-8 py-4 rounded-lg transition-all duration-300 hover:shadow-[0_0_25px_rgba(212,165,116,0.7)] hover:scale-[1.02] shadow-lg transform"
              >
                {isSubmitting ? "Inscription..." : "S'inscrire"}
              </button>
            </form>

          </div>
        </div>
      </div>
    </div>
  );
}
