ims/app/api/capa/[id]/verify/route.ts

export const dynamic = 'force-dynamic'

import { NextRequest, NextResponse } from 'next/server'
import { createClient } from '@/lib/supabase/server'
import { getSession } from '@/lib/auth/get-session'
import { createInAppNotifications } from '@/lib/notifications/in-app'

export async function POST(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params
  const session = await getSession()
  if (!session) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
  if (!['hse', 'admin'].includes(session.role))
    return NextResponse.json({ error: 'Forbidden' }, { status: 403 })

  const supabase = await createClient()

  const { data: capa } = await supabase
    .from('capa_actions').select('status, incident_id, owner_user_id').eq('id', id).single()
  if (!capa) return NextResponse.json({ error: 'Not found' }, { status: 404 })
  if (capa.status !== 'pending_verification')
    return NextResponse.json({ error: 'CAPA must be pending_verification' }, { status: 409 })

  const body: { verdict: 'verified' | 'reopened'; reopen_reason?: string } = await request.json()
  if (body.verdict !== 'verified' && body.verdict !== 'reopened')
    return NextResponse.json({ error: 'verdict must be verified or reopened' }, { status: 422 })

  const verifiedAt = new Date()
  const recheckDate = new Date(verifiedAt)
  recheckDate.setUTCDate(recheckDate.getUTCDate() + 30)

  const update: Record<string, unknown> = {
    status: body.verdict,
    verified_by: session.sub,
    verified_at: verifiedAt.toISOString(),
    ...(body.verdict === 'verified'
      ? {
          effectiveness_recheck_date: recheckDate.toISOString().split('T')[0],
          effectiveness_recheck_round: 0,
        }
      : {}),
  }

  const { error } = await supabase
    .from('capa_actions').update(update).eq('id', id)

  if (error) return NextResponse.json({ error: 'Update failed' }, { status: 500 })

  await supabase.rpc('write_audit_log', {
    p_table_name: 'capa_actions',
    p_record_id: id,
    p_action: body.verdict === 'verified' ? 'verified' : 'reopened',
    p_new_value: { ...update, reopen_reason: body.reopen_reason ?? null },
  })

  if (capa.owner_user_id) {
    await createInAppNotifications([{
      userId: capa.owner_user_id,
      title: body.verdict === 'verified'
        ? 'Your CAPA action was verified'
        : `Your CAPA action was reopened${body.reopen_reason ? `: ${body.reopen_reason}` : ''}`,
      link: `/hse/capa/${id}`,
      incidentId: capa.incident_id,
      capaId: id,
    }])
  }

  // Check if all CAPAs for this incident are verified — if so, transition incident to verification
  const { data: openCapas } = await supabase
    .from('capa_actions')
    .select('id')
    .eq('incident_id', capa.incident_id)
    .not('status', 'in', '(verified,closed)')

  if (!openCapas || openCapas.length === 0) {
    await supabase
      .from('incidents')
      .update({ status: 'verification' })
      .eq('id', capa.incident_id)
  }

  return NextResponse.json({ ok: true })
}