export const dynamic = 'force-dynamic'

import { NextRequest, NextResponse } from 'next/server'
import { createClient } from '@/lib/supabase/server'

export async function POST(
  request: NextRequest,
  { params }: { params: Promise<{ id: string }> }
) {
  const { id } = await params
  const supabase = await createClient()

  const { data: { user }, error: authError } = await supabase.auth.getUser()
  if (authError || !user) return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })

  const { data: profile } = await supabase
    .from('users').select('role').eq('id', user.id).single()
  if (!profile || !['hse', 'admin'].includes(profile.role))
    return NextResponse.json({ error: 'Forbidden' }, { status: 403 })

  const { data: capa } = await supabase
    .from('capa_actions').select('status, incident_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 update: Record<string, unknown> = {
    status: body.verdict,
    verified_by: user.id,
    verified_at: new Date().toISOString(),
  }

  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 },
  })

  // 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 })
}