DoliTicketing/custom/documentfollower/class/dfprocesslevelemailsender.class.php

<?php
dol_include_once('/documentfollower/class/documentfollowerprocess.class.php');
dol_include_once('/documentfollower/class/dfprocessuserhandler.class.php');
dol_include_once('/documentfollower/class/wizard/wizardemailsender.class.php');

class DfProcessLevelEmailSender
{
    public $process;
    public $level;
    public $db;
    /**
     * 
     */
    public function __construct(DocumentFollowerProcess $process, int $level)
    {
        global $db;

        $this->db = $db;
        $this->process = $process;
        $this->level = $level;
    }
    /**
     * 
     */
    public function sendEmailToLevelMembers(): bool
    {
        $sent = false;

        $members = (new DfProcessUserHandler($this->process->id))->getLevelMembers($this->process->id, $this->level);

        if (!empty($members)) {
            $emailSender = new WizardEmailSender($this->process);
            foreach ($members as $member) {
                $user = new User($this->db);
                if ($user->fetch($member) > 0) {
                    $emailSender->send($user);                    
                }
            }

            $sent = true;
        }

        return $sent;
    }
}