"use client"

import { useState } from "react"
import { useRouter } from "next/navigation"
import Link from "next/link"
import { useAuth } from "@/hooks/use-auth"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
import { Label } from "@/components/ui/label"
import {
  Card,
  CardContent,
  CardDescription,
  CardHeader,
  CardTitle,
} from "@/components/ui/card"

export default function RegisterPage() {
  const router = useRouter()
  const { register } = useAuth()
  const [username, setUsername] = useState("")
  const [email, setEmail] = useState("")
  const [password, setPassword] = useState("")
  const [error, setError] = useState("")
  const [loading, setLoading] = useState(false)

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault()
    setError("")
    setLoading(true)
    try {
      await register(username, email, password)
      router.push("/")
    } catch {
      setError("Registration failed. Try a different email or username.")
    } finally {
      setLoading(false)
    }
  }

  return (
    <Card>
      <CardHeader>
        <CardTitle>Create account</CardTitle>
        <CardDescription>
          Sign up to start managing your photos
        </CardDescription>
      </CardHeader>
      <CardContent>
        <form onSubmit={handleSubmit} className="flex flex-col gap-4">
          {error && (
            <p className="text-sm text-destructive">{error}</p>
          )}
          <div className="flex flex-col gap-2">
            <Label htmlFor="username">Username</Label>
            <Input
              id="username"
              required
              value={username}
              onChange={(e) => setUsername(e.target.value)}
            />
          </div>
          <div className="flex flex-col gap-2">
            <Label htmlFor="email">Email</Label>
            <Input
              id="email"
              type="email"
              required
              value={email}
              onChange={(e) => setEmail(e.target.value)}
            />
          </div>
          <div className="flex flex-col gap-2">
            <Label htmlFor="password">Password</Label>
            <Input
              id="password"
              type="password"
              required
              minLength={8}
              value={password}
              onChange={(e) => setPassword(e.target.value)}
            />
          </div>
          <Button type="submit" disabled={loading}>
            {loading ? "Creating account..." : "Create account"}
          </Button>
          <p className="text-center text-sm text-muted-foreground">
            Already have an account?{" "}
            <Link href="/login" className="underline hover:text-foreground">
              Sign in
            </Link>
          </p>
        </form>
      </CardContent>
    </Card>
  )
}