accounted/app/api/reconciliation/bank/mark-opening-balance/route.ts

import { createClient } from '@/lib/supabase/server'
import { NextResponse } from 'next/server'
import { ensureInitialized } from '@/lib/init'
import { validateBody } from '@/lib/api/validate'
import { MarkOpeningBalanceSchema } from '@/lib/api/schemas'
import { requireCompanyId } from '@/lib/company/context'
import { requireWritePermission } from '@/lib/auth/require-write'

ensureInitialized()

/**
 * Re-tag a posted manual/import voucher on a bank account as an opening balance
 * (source_type='opening_balance') so bank reconciliation stops counting it as a
 * phantom difference. Delegates to the mark_entry_as_opening_balance RPC, which
 * enforces owner/admin role, the manual/import precondition, a bank-line check,
 * and the period lock. We only translate its errors to Swedish here.
 */
export async function POST(request: Request) {
  const supabase = await createClient()
  const { data: { user } } = await supabase.auth.getUser()

  if (!user) {
    return NextResponse.json({ error: 'Unauthorized' }, { status: 401 })
  }

  const writeCheck = await requireWritePermission(supabase, user.id)
  if (!writeCheck.ok) return writeCheck.response

  const companyId = await requireCompanyId(supabase, user.id)

  const validation = await validateBody(request, MarkOpeningBalanceSchema)
  if (!validation.success) return validation.response
  const { journal_entry_id } = validation.data

  const { data, error } = await supabase.rpc('mark_entry_as_opening_balance', {
    p_company_id: companyId,
    p_entry_id: journal_entry_id,
  })

  if (error) {
    const raw = error.message || ''
    let message = 'Kunde inte markera verifikationen som ingående balans.'
    if (/owners and admins/i.test(raw)) {
      message = 'Endast ägare och administratörer kan markera en ingående balans.'
    } else if (/not found/i.test(raw)) {
      message = 'Verifikationen kunde inte hittas.'
    } else if (/manual\/import/i.test(raw)) {
      message = 'Bara manuellt eller importerat bokförda verifikationer kan markeras som ingående balans.'
    } else if (/posted entries/i.test(raw)) {
      message = 'Bara bokförda verifikationer kan markeras som ingående balans.'
    } else if (/bank\/cash account/i.test(raw)) {
      message = 'Verifikationen saknar rad på ett bankkonto (19xx) och kan inte vara en ingående balans.'
    } else if (/closed fiscal period/i.test(raw)) {
      message = 'Perioden är stängd. Öppna perioden innan du ändrar verifikationen.'
    } else if (/locked fiscal period/i.test(raw)) {
      message = 'Perioden är låst. Lås upp perioden innan du ändrar verifikationen.'
    }
    return NextResponse.json({ error: message }, { status: 400 })
  }

  return NextResponse.json({ data })
}