<?php
/**
 * Copyright (C) 2024 fhcomplete.org
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

if (! defined('BASEPATH')) exit('No direct script access allowed');


class Lehre extends FHCAPI_Controller
{
	
	/**
	 * Object initialization
	 */
	public function __construct()
	{
		parent::__construct([
			'lvStudentenMail' => self::PERM_LOGGED,
		]);

		
	}

	//------------------------------------------------------------------------------------------------------------------
	// Public methods

    /**
	 * constructs the emails of the groups from a lehrveranstaltung
	 */
    public function lvStudentenMail()
	{
        $lehreinheit_id = $this->input->get("lehreinheit_id",TRUE);
        
        // return early if the required parameter is missing
        if(!isset($lehreinheit_id))
        {
            $this->terminateWithError('Missing required parameter', self::ERROR_TYPE_GENERAL);
        }

        $this->load->model('education/Lehreinheit_model', 'LehreinheitModel');
        
        $studentenMails = $this->LehreinheitModel->getStudentenMail($lehreinheit_id);

        $studentenMails = $this->getDataOrTerminateWithError($studentenMails);

		//convert array of objects into array of strings
		$studentenMails = array_map(function($element){
			return $element->mail;
		}, $studentenMails);

        $this->terminateWithSuccess($studentenMails);
	}

	
}