<?php

namespace App\Http\Controllers\Business;

use Illuminate\Routing\Controller;
use Modules\EcommerceFinance\View\AccessoryReshipPageData;

class AccessoryReshipDeductions extends Controller
{
    public function selectCourier(\Illuminate\Http\Request $request, AccessoryReshipPageData $data, \Modules\EcommerceFinance\Services\AccessoryReshipSelectionStore $store)
    {
        $input = $request->validate([
            'month' => ['required', 'date_format:Y-m', 'after_or_equal:2000-01'],
            'row_key' => ['required', 'regex:/^[a-f0-9]{64}$/'],
            'courier' => ['required', 'string', 'max:191'],
        ]);
        // 重新读取候选，禁止提交任意快递名称或其他公司的包裹。
        $found = false;
        foreach ($data->rows(['month' => $input['month']]) as $row) {
            if ($row['selection_key'] !== $input['row_key']) continue;
            $found = in_array($input['courier'], array_column($row['courier_candidates'], 'courier'), true);
            break;
        }
        abort_unless($found, 422, '该快递已不在当前首发候选中，请刷新后重新选择。');
        $store->save((int) company_id(), $input['month'], $input['row_key'], $input['courier'], mb_substr((string) user()->name, 0, 191));
        return response()->json(['message' => '扣款快递已保存。']);
    }

    public function export(AccessoryReshipPageData $data)
    {
        $filters = $data->filters();
        // 先完成读取，失败时返回正常错误，避免下载半份扣款清单。
        $file = tmpfile();
        if ($file === false) abort(500, '无法创建导出文件。');
        fwrite($file, "\xEF\xBB\xBF");
        fputcsv($file, ['交易单号','补发快递单号','补发快递','补发时间','原始条形码','处理后条形码','补发运费','匹配状态','首发快递公司（候选）','首发快递单号（候选）','首发所属月份（候选）','扣款比例（%）','扣款金额','说明']);
        foreach ($data->rows($filters) as $row) {
            if (!AccessoryReshipPageData::inCategory($row, $filters['match_status'])) continue;
            $values = [$row['trade_no'], $row['express_no'], ($row['express_name1'] ?: ($row['express_name2'] ?? '')), $row['ship_time'], $row['barcode'], $row['normalized_barcode'], $row['freight'], $row['deduction_state'] === 'ready' ? '可扣款' : ($row['status'] === 'matched' ? '已匹配待核对' : '未匹配不扣款'), implode(' / ', array_column($row['matches'], 'courier')), implode(' / ', array_column($row['matches'], 'express_no')), implode(' / ', array_column($row['matches'], 'month')), $row['deduction_rate_basis_points'] === null ? '' : number_format($row['deduction_rate_basis_points'] / 100, 2, '.', '') . '%', $row['deduction_cents'] === null ? '' : number_format($row['deduction_cents'] / 100, 2, '.', ''), $row['deduction_note']];
            fputcsv($file, array_map(static function ($value) {
                $value = (string) $value;
                return preg_match('/^[=+\-@\t\r\n]/u', $value) ? "'" . $value : $value;
            }, $values));
        }
        rewind($file);
        return response()->streamDownload(function () use ($file) { fpassthru($file); fclose($file); }, '配件补发扣款-' . $filters['month'] . '.csv', ['Content-Type' => 'text/csv; charset=UTF-8']);
    }
}