"use client"

import { useEffect, useState, Suspense } from "react"
import { useRouter, useSearchParams } from "next/navigation"
import { Button } from "@/components/ui/button"

function ResetPasswordForm() {
  const router = useRouter()
  const searchParams = useSearchParams()
  const token = searchParams.get("token")
  const email = searchParams.get("email")

  const [password, setPassword] = useState("")
  const [confirmPassword, setConfirmPassword] = useState("")
  const [isSubmitting, setIsSubmitting] = useState(false)
  const [error, setError] = useState<string | null>(null)
  const [success, setSuccess] = useState(false)

  useEffect(() => {
    if (!token || !email) {
      setError("Invalid or missing reset link")
    }
  }, [token, email])

  const handleSubmit = async () => {
    setError(null)

    if (!password || !confirmPassword) {
      setError("Please enter and confirm your new password")
      return
    }

    if (password.length < 8) {
      setError("Password must be at least 8 characters")
      return
    }

    if (password !== confirmPassword) {
      setError("Passwords do not match")
      return
    }

    setIsSubmitting(true)
    try {
      const res = await fetch("/api/auth/reset-password", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ token, email, password }),
      })

      const data = await res.json()
      if (!res.ok) {
        setError(data.error || "Failed to reset password")
        return
      }

      setSuccess(true)
      // Redirect to login after 3 seconds
      setTimeout(() => {
        router.push("/login")
      }, 3000)
    } catch {
      setError("Failed to reset password")
    } finally {
      setIsSubmitting(false)
    }
  }

  if (success) {
    return (
      <div className="min-h-screen bg-slate-950 text-slate-100 flex items-center justify-center p-4">
        <div className="w-full max-w-md border border-green-800 rounded-xl bg-green-900/20 p-6 text-center">
          <div className="w-12 h-12 rounded-full bg-green-500/20 flex items-center justify-center mx-auto mb-4">
            <svg className="w-6 h-6 text-green-400" fill="none" viewBox="0 0 24 24" stroke="currentColor">
              <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M5 13l4 4L19 7" />
            </svg>
          </div>
          <h1 className="text-xl font-semibold text-white mb-2">Password Reset!</h1>
          <p className="text-slate-300 mb-4">
            Your password has been successfully reset.
          </p>
          <p className="text-sm text-slate-400">
            Redirecting to login...
          </p>
        </div>
      </div>
    )
  }

  return (
    <div className="min-h-screen bg-slate-950 text-slate-100 flex items-center justify-center p-4">
      <div className="w-full max-w-md border border-slate-800 rounded-xl bg-slate-900/70 p-6">
        <h1 className="text-2xl font-semibold text-white mb-2">Reset Password</h1>
        <p className="text-sm text-slate-400 mb-6">
          Enter your new password below.
        </p>

        {error && (
          <div className="mb-4 p-3 bg-red-900/30 border border-red-700 rounded-lg">
            <p className="text-sm text-red-400">{error}</p>
          </div>
        )}

        <div className="space-y-4">
          <div>
            <label className="block text-sm text-slate-300 mb-1">New Password</label>
            <input
              type="password"
              value={password}
              onChange={(e) => setPassword(e.target.value)}
              className="w-full px-3 py-2 bg-slate-800 border border-slate-700 rounded-lg text-white"
              placeholder="At least 8 characters"
            />
          </div>

          <div>
            <label className="block text-sm text-slate-300 mb-1">Confirm Password</label>
            <input
              type="password"
              value={confirmPassword}
              onChange={(e) => setConfirmPassword(e.target.value)}
              className="w-full px-3 py-2 bg-slate-800 border border-slate-700 rounded-lg text-white"
              placeholder="Re-enter password"
            />
          </div>

          <Button onClick={handleSubmit} className="w-full" disabled={isSubmitting || !token || !email}>
            {isSubmitting ? "Resetting..." : "Reset Password"}
          </Button>

          <Button onClick={() => router.push("/login")} variant="outline" className="w-full">
            Back to Login
          </Button>
        </div>
      </div>
    </div>
  )
}

export default function ResetPasswordPage() {
  return (
    <Suspense fallback={
      <div className="min-h-screen bg-slate-950 text-slate-100 flex items-center justify-center p-4">
        <div className="text-center">
          <p className="text-slate-400">Loading...</p>
        </div>
      </div>
    }>
      <ResetPasswordForm />
    </Suspense>
  )
}
