<?php

namespace App\Http\Controllers\Business;

use Illuminate\Http\Request;
use Illuminate\Routing\Controller;
use Modules\EcommerceFinance\Repositories\SupplierManagementMirrorRepository;
use Modules\EcommerceFinance\View\SupplierManagementPageData;

class SupplierManagement extends Controller
{
    public function export(Request $request, SupplierManagementMirrorRepository $repository, SupplierManagementPageData $page)
    {
        abort_unless($repository->ready(), 503, '供应商资料尚未完成首次同步，暂时不能导出。');
        $filters = $page->filters($request->query());

        return response()->streamDownload(static function () use ($repository, $filters): void {
            $csv = fopen('php://output', 'w');
            fputs($csv, "\xEF\xBB\xBF");
            fputcsv($csv, array_values(SupplierManagementMirrorRepository::COLUMNS));
            foreach ($repository->exportRows($filters) as $row) {
                $values = [];
                foreach (array_keys(SupplierManagementMirrorRepository::COLUMNS) as $column) {
                    $value = (string) ($row->{$column} ?? '');
                    if ($column === 'coopersgn') $value = ['1' => '合作', '2' => '不合作'][$value] ?? '未维护';
                    // Excel 不能执行供应商提供的公式文本，且长编码保留为文本。
                    if (preg_match('/^[=+\-@\t\r\n]/', ltrim($value)) || preg_match('/^\d{12,}$/', $value)) $value = "'" . $value;
                    $values[] = $value;
                }
                fputcsv($csv, $values);
            }
            fclose($csv);
        }, 'supplier_management_' . now()->format('Ymd_His') . '.csv',
            ['Content-Type' => 'text/csv; charset=UTF-8', 'Cache-Control' => 'private, no-store']);
    }
}