star-erp/app/Mail/PaymentReminderMail.php

<?php

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Mail\Mailables\Content;
use Illuminate\Mail\Mailables\Envelope;
use Illuminate\Queue\SerializesModels;

class PaymentReminderMail extends Mailable
{
    use Queueable, SerializesModels;

    public $fees;

    /**
     * Create a new message instance.
     */
    public function __construct($fees)
    {
        $this->fees = $fees;
    }

    /**
     * Get the message envelope.
     */
    public function envelope(): Envelope
    {
        $tenantName = tenant('name') ?? '系統';
        return new Envelope(
            subject: "【{$tenantName}】公共事業費繳費/逾期通知",
        );
    }

    /**
     * Get the message content definition.
     */
    public function content(): Content
    {
        return new Content(
            markdown: 'emails.payment-reminder',
            with: [
                'fees' => $this->fees,
            ],
        );
    }

    /**
     * Get the attachments for the message.
     *
     * @return array<int, \Illuminate\Mail\Mailables\Attachment>
     */
    public function attachments(): array
    {
        return [];
    }
}