"use client"

import Link from "next/link"
import { useState } from "react"
import { useRouter } from "next/navigation"
import { Button } from "@/components/ui/button"
import { Card, CardContent } from "@/components/ui/card"
import { Input } from "@/components/ui/input"
import { Label } from "@/components/ui/label"
import { Mail, Lock, AlertCircle, CheckCircle } from "lucide-react"
import { useAuth } from "@/lib/auth-context"

export default function RegisterPage() {
  const router = useRouter()
  const { register, isLoading } = useAuth()
  const [formData, setFormData] = useState({
    firstName: "",
    lastName: "",
    email: "",
    password: "",
    passwordConfirm: "",
  })
  const [error, setError] = useState("")
  const [success, setSuccess] = useState(false)

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

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault()
    setError("")
    setSuccess(false)

    if (!formData.firstName || !formData.lastName || !formData.email || !formData.password) {
      setError("Tous les champs sont requis")
      return
    }

    if (formData.password !== formData.passwordConfirm) {
      setError("Les mots de passe ne correspondent pas")
      return
    }

    if (formData.password.length < 8) {
      setError("Le mot de passe doit contenir au moins 8 caractères")
      return
    }

    try {
      await register(formData.email, formData.password, formData.firstName, formData.lastName)
      setSuccess(true)
      setTimeout(() => {
        router.push("/dashboard")
      }, 500)
    } catch (err) {
      setError("Une erreur s'est produite lors de l'inscription")
    }
  }

  return (
    <div className="min-h-screen grid grid-cols-1 md:grid-cols-2">
      {/* Left side - Illustration */}
      <div className="hidden md:flex items-center justify-center p-8 bg-gradient-to-br from-card to-background">
        <div className="text-center space-y-8 max-w-sm">
          <div className="text-7xl">🗳️</div>
          <div className="space-y-4">
            <h2 className="text-3xl font-bold">Rejoignez-nous</h2>
            <p className="text-muted-foreground leading-relaxed">
              Créez un compte pour participer à des élections sécurisées et transparentes
            </p>
          </div>
          <div className="space-y-4 pt-4">
            <div className="flex items-center gap-4 text-left">
              <CheckCircle className="w-6 h-6 text-accent flex-shrink-0" />
              <p className="font-semibold text-foreground">Inscription gratuite</p>
            </div>
            <div className="flex items-center gap-4 text-left">
              <CheckCircle className="w-6 h-6 text-accent flex-shrink-0" />
              <p className="font-semibold text-foreground">Sécurité maximale</p>
            </div>
            <div className="flex items-center gap-4 text-left">
              <CheckCircle className="w-6 h-6 text-accent flex-shrink-0" />
              <p className="font-semibold text-foreground">Aucune données</p>
            </div>
          </div>
        </div>
      </div>

      {/* Right side - Form */}
      <div className="flex items-center justify-center p-4 md:p-8 bg-background">
        <div className="w-full max-w-sm space-y-8">
          <div className="space-y-2 text-center">
            <h1 className="text-3xl font-bold">S'inscrire</h1>
            <p className="text-muted-foreground">Créez votre compte E-Voting</p>
          </div>

          <Card>
            <CardContent className="pt-6">
              {error && (
                <div className="mb-4 p-4 rounded-md bg-destructive/10 border border-destructive/50 flex gap-3">
                  <AlertCircle className="w-5 h-5 text-destructive flex-shrink-0 mt-0.5" />
                  <div>
                    <p className="text-sm font-medium text-destructive">Erreur</p>
                    <p className="text-sm text-destructive/80">{error}</p>
                  </div>
                </div>
              )}

              {success && (
                <div className="mb-4 p-4 rounded-md bg-accent/10 border border-accent/50 flex gap-3">
                  <CheckCircle className="w-5 h-5 text-accent flex-shrink-0 mt-0.5" />
                  <div>
                    <p className="text-sm font-medium text-accent">Succès</p>
                    <p className="text-sm text-accent/80">Votre compte a été créé avec succès</p>
                  </div>
                </div>
              )}

              <form onSubmit={handleSubmit} className="space-y-4">
                <div className="grid grid-cols-2 gap-4">
                  <div className="space-y-2">
                    <Label htmlFor="firstName">Prénom</Label>
                    <Input
                      id="firstName"
                      name="firstName"
                      placeholder="Jean"
                      value={formData.firstName}
                      onChange={handleChange}
                      required
                      disabled={isLoading}
                    />
                  </div>
                  <div className="space-y-2">
                    <Label htmlFor="lastName">Nom</Label>
                    <Input
                      id="lastName"
                      name="lastName"
                      placeholder="Dupont"
                      value={formData.lastName}
                      onChange={handleChange}
                      required
                      disabled={isLoading}
                    />
                  </div>
                </div>

                <div className="space-y-2">
                  <Label htmlFor="email">Email</Label>
                  <div className="relative">
                    <Mail className="absolute left-3 top-3 w-5 h-5 text-muted-foreground" />
                    <Input
                      id="email"
                      name="email"
                      type="email"
                      placeholder="votre@email.com"
                      value={formData.email}
                      onChange={handleChange}
                      required
                      disabled={isLoading}
                      className="pl-10"
                    />
                  </div>
                </div>

                <div className="space-y-2">
                  <Label htmlFor="password">Mot de passe</Label>
                  <div className="relative">
                    <Lock className="absolute left-3 top-3 w-5 h-5 text-muted-foreground" />
                    <Input
                      id="password"
                      name="password"
                      type="password"
                      placeholder="••••••••"
                      value={formData.password}
                      onChange={handleChange}
                      required
                      disabled={isLoading}
                      className="pl-10"
                    />
                  </div>
                </div>

                <div className="space-y-2">
                  <Label htmlFor="passwordConfirm">Confirmer le mot de passe</Label>
                  <div className="relative">
                    <Lock className="absolute left-3 top-3 w-5 h-5 text-muted-foreground" />
                    <Input
                      id="passwordConfirm"
                      name="passwordConfirm"
                      type="password"
                      placeholder="••••••••"
                      value={formData.passwordConfirm}
                      onChange={handleChange}
                      required
                      disabled={isLoading}
                      className="pl-10"
                    />
                  </div>
                </div>

                <Button type="submit" className="w-full" disabled={isLoading}>
                  {isLoading ? "Inscription en cours..." : "S'inscrire"}
                </Button>
              </form>

              <p className="text-center text-sm text-muted-foreground mt-6">
                Déjà un compte?{" "}
                <Link href="/auth/login" className="text-accent font-medium hover:underline">
                  Se connecter
                </Link>
              </p>
            </CardContent>
          </Card>
        </div>
      </div>
    </div>
  )
}
