<?php

namespace Modules\EcommerceFinance\View;

use Illuminate\Pagination\Paginator;
use Illuminate\Support\Collection;
use Modules\EcommerceFinance\Repositories\CostFreightAnomalyRepository;

class CostFreightAnomalyPageData
{
    public function __construct(private readonly CostFreightAnomalyRepository $repository)
    {
    }

    public function page(): array
    {
        return ['view' => 'business.pages.fee-ratio-monitoring.cost-freight-anomaly'] + $this->data();
    }

    public function data(?array $input = null, ?int $page = null, ?int $limit = null): array
    {
        $filters = $this->filters($input);
        $page = max($page ?? (int) request('page', 1), 1);
        $limit = min(max($limit ?? (int) setting('default.list_limit', 25), 1), 100);
        $status = $this->repository->status();
        $rows = new Paginator([], $limit, $page, [
            'path' => request()->url(),
            'query' => request()->except('page'),
        ]);
        $error = null;

        if (! $status['ready']) {
            $error = '成本/运费异常共享镜像尚未就绪。';
        } else {
            try {
                $result = $this->repository->paginate($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']);
                $status['total'] = $result['total'];
            } catch (\Throwable $exception) {
                report($exception);
                $error = '成本/运费异常数据暂时无法读取，请稍后重试。';
            }
        }

        return [
            'costFreightRows' => $rows,
            'costFreightFilters' => $filters,
            'costFreightStatus' => $status,
            'costFreightShopOptions' => $status['shops'] ?? [],
            'costFreightError' => $error,
        ];
    }

    /** @return array{from:string,to:string,order_no:string,shop_names:array<int,string>} */
    private function filters(?array $input): array
    {
        $input ??= request()->query();
        $shops = [];
        foreach ((array) ($input['shop_name'] ?? $input['shop_names'] ?? []) as $shop) {
            $shop = trim((string) $shop);
            if ($shop !== '') {
                $shops[$shop] = true;
            }
        }

        $datesSubmitted = array_key_exists('from', $input) || array_key_exists('to', $input);
        $from = $this->date($input['from'] ?? null);
        $to = $this->date($input['to'] ?? null);
        if (! $datesSubmitted && empty($input['reset'])) {
            $from = now()->subDays(6)->toDateString();
            $to = now()->toDateString();
        }

        return [
            'from' => $from,
            'to' => $to,
            'order_no' => $this->batchText($input['order_no'] ?? null),
            'shop_names' => array_keys($shops),
        ];
    }

    private function date(mixed $value): string
    {
        $value = trim((string) $value);
        $timestamp = $value === '' ? false : strtotime($value);

        return $timestamp === false ? '' : date('Y-m-d', $timestamp);
    }

    private function batchText(mixed $value): string
    {
        $values = is_array($value) ? $value : preg_split('/[\r\n,，;；]+/u', (string) $value);
        $items = [];
        foreach ((array) $values as $item) {
            $item = trim((string) $item);
            if ($item !== '') {
                $items[$item] = true;
            }
            if (count($items) >= 100) {
                break;
            }
        }

        return implode("\n", array_keys($items));
    }
}