<?php

namespace Modules\EcommerceFinance\View;

use Illuminate\Pagination\Paginator;
use Illuminate\Support\Collection;
use Throwable;

class BillOffsetPageData
{
    public function __construct(private readonly OrderDataPageData $orderData)
    {
    }

    /** @return array<string,mixed> */
    public function page(): array
    {
        $filters = $this->orderData->afterSalesFilters();
        $page = max((int) request('page', 1), 1);
        $limit = min(max((int) setting('default.list_limit', 25), 1), 100);
        $rows = $this->emptyPaginator($page, $limit);
        $status = null;
        $pageAmount = null;
        $error = null;

        try {
            $result = $this->orderData->afterSalesRows($filters, $page, $limit);
            $rows = new Paginator(
                Collection::make($result['rows'] ?? [])->map(static fn (array $row): object => (object) $row),
                $limit,
                $page,
                [
                    'path' => request()->url(),
                    'query' => request()->except('page'),
                ],
            );
            $rows->hasMorePagesWhen((bool) ($result['has_more'] ?? false));
            $status = data_get($result, 'status.X-Caiwu-Data-Status');
            $pageAmount = $this->pageAmount($rows->items());
        } catch (Throwable $exception) {
            report($exception);
            $error = '订单售后费用数据暂时无法读取，请稍后重试。';
        }

        return [
            'view' => 'business.pages.order-data.bill-offset',
            'billOffsetRows' => $rows,
            'billOffsetFilters' => $filters,
            'billOffsetStatus' => $status,
            'billOffsetPageAmount' => $pageAmount,
            'billOffsetError' => $error,
        ];
    }

    /** @param array<int,mixed> $items */
    private function pageAmount(array $items): ?float
    {
        $amount = null;

        foreach ($items as $item) {
            $value = data_get($item, 'account_500112');
            if ($value === null || $value === '') {
                continue;
            }

            $amount = ($amount ?? 0.0) + (float) $value;
        }

        return $amount === null ? null : round($amount, 2);
    }

    private function emptyPaginator(int $page, int $limit): Paginator
    {
        return new Paginator([], $limit, $page, [
            'path' => request()->url(),
            'query' => request()->except('page'),
        ]);
    }
}