'use client'

import { useState } from 'react'
import { useRouter } from 'next/navigation'

interface Props {
  capaId: string
}

export function CloseCapaButton({ capaId }: Props) {
  const router = useRouter()
  const [loading, setLoading] = useState(false)
  const [error, setError] = useState<string | null>(null)

  async function handleClose() {
    if (!confirm('Close this CAPA? This marks it as fully resolved.')) return
    setLoading(true)
    setError(null)
    const res = await fetch(`/ims/api/capa/${capaId}`, {
      method: 'PATCH',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ status: 'closed' }),
    })
    if (!res.ok) {
      setError('Failed to close CAPA. Please try again.')
      setLoading(false)
      return
    }
    router.push('/hse/capa')
    router.refresh()
  }

  return (
    <div className="border border-gray-200 rounded-xl p-5 space-y-3 bg-green-50">
      <h3 className="text-sm font-semibold text-gray-800">Close CAPA</h3>
      <p className="text-sm text-gray-600">
        This CAPA has been verified as effective. Close it to mark it fully resolved.
      </p>
      {error && <p className="text-sm text-red-600">{error}</p>}
      <button
        onClick={handleClose}
        disabled={loading}
        className="w-full bg-green-700 text-white rounded-lg py-2 text-sm font-semibold hover:bg-green-800 disabled:opacity-50"
      >
        {loading ? 'Closing…' : 'Close CAPA'}
      </button>
    </div>
  )
}