water/server/plugin/saiadmin/app/service/finance/WithdrawalDemo.php

<?php
declare(strict_types=1);
namespace plugin\saiadmin\app\service\finance;

use plugin\saiadmin\app\model\water\WaterWithdrawalDemo;

/** Optional demonstration data stays separate from real finance totals and capabilities. */
final class WithdrawalDemo
{
    public function listing(FinanceFilters $filters): array
    {
        $empty = ['list' => [], 'total' => 0, 'amount_cents' => 0];
        $model = new WaterWithdrawalDemo();
        if ($filters->source === 'regular' || !$model->getConnection()->getSchemaBuilder()->hasTable($model->getTable())) {
            return $empty;
        }
        $query = $model->newQuery()
            ->where('status', 'pending')
            ->whereBetween('created_at', [$filters->start->format('Y-m-d H:i:s'), $filters->end->format('Y-m-d H:i:s')]);
        $totals = (clone $query)->selectRaw('COUNT(*) AS total, COALESCE(SUM(amount_cents), 0) AS cents')->first();
        $rows = $query->orderByDesc('created_at')->orderByDesc('id')->limit(20)
            ->get(['id', 'reference', 'applicant_name', 'kind_label', 'channel_label', 'amount_cents', 'created_at'])
            ->map(fn ($row) => $row->toArray() + ['is_demo' => true, 'status_label' => '待审核（测试）'])->all();
        return ['list' => $rows, 'total' => (int)$totals->total, 'amount_cents' => (int)$totals->cents];
    }
}