<?php

declare(strict_types=1);

namespace Core;

use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception as MailerException;

class Mailer
{
    private array $config;

    public function __construct()
    {
        $this->config = require __DIR__ . '/../config/mail.php';
    }

    /**
     * Send an email.
     *
     * @param string       $toEmail
     * @param string       $toName
     * @param string       $subject
     * @param string       $htmlBody
     * @param string       $textBody  Plain-text fallback (optional)
     * @throws MailerException
     */
    public function send(
        string $toEmail,
        string $toName,
        string $subject,
        string $htmlBody,
        string $textBody = ''
    ): void {
        $mail = new PHPMailer(true);

        $mail->isSMTP();
        $mail->Host       = $this->config['host'];
        $mail->SMTPAuth   = true;
        $mail->Username   = $this->config['username'];
        $mail->Password   = $this->config['password'];
        $mail->SMTPSecure = $this->config['encryption'] === 'ssl' ? PHPMailer::ENCRYPTION_SMTPS : PHPMailer::ENCRYPTION_STARTTLS;
        $mail->Port       = $this->config['port'];
        $mail->SMTPDebug  = $this->config['debug'];

        $mail->setFrom($this->config['from_email'], $this->config['from_name']);
        $mail->addAddress($toEmail, $toName);

        $mail->isHTML(true);
        $mail->Subject = $subject;
        $mail->Body    = $htmlBody;
        $mail->AltBody = $textBody ?: strip_tags($htmlBody);

        $mail->send();
    }
}