math_cms/app/Http/Controllers/TeacherWeeklyStatsReportController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Response;
use Symfony\Component\HttpFoundation\BinaryFileResponse;

class TeacherWeeklyStatsReportController extends Controller
{
    /**
     * 浏览器内联打开周报 PDF（固定文件名 teacher-weekly-stats-latest.pdf）
     */
    public function open(): BinaryFileResponse|Response
    {
        $path = storage_path('app/reports/teacher-weekly-stats-latest.pdf');
        if (! is_file($path)) {
            return response(
                '尚未生成周报 PDF。请在后台「老师周报统计」页面点击「生成/刷新周报」，或执行：php artisan report:teacher-weekly-pdf',
                404
            );
        }

        return response()->file($path, [
            'Content-Type' => 'application/pdf',
            'Content-Disposition' => 'inline; filename="teacher-weekly-stats.pdf"',
        ]);
    }
}