<?php

namespace App\Integrations\Whmcs\Extractors;

use App\Integrations\Whmcs\Support\SyncedLegacyIds;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\LazyCollection;

class InvoiceExtractor
{
    public function extract(bool $missingOnly = false): LazyCollection
    {
        $rows = DB::connection('whmcs')->table('tblinvoices')->orderBy('id')->cursor();
        if (! $missingOnly) {
            return $rows;
        }

        $synced = SyncedLegacyIds::of('invoices');

        return $rows->reject(fn ($row) => isset($synced[$row->id]));
    }

    /**
     * Line items for a single invoice (tblinvoiceitems has no per-invoice cursor of its own,
     * items are pulled per-invoice while its job runs).
     */
    public function items(int $invoiceId): \Illuminate\Support\Collection
    {
        return DB::connection('whmcs')->table('tblinvoiceitems')->where('invoiceid', $invoiceId)->get();
    }

    public function orderIdFor(int $invoiceId): ?int
    {
        return DB::connection('whmcs')->table('tblorders')->where('invoiceid', $invoiceId)->value('id');
    }
}