<?php
/* For licensing terms, see /license.txt */

use ChamiloSession as Session;

$language_file = array('exercice', 'work', 'document', 'admin', 'gradebook');

require_once '../inc/global.inc.php';
$current_course_tool  = TOOL_STUDENTPUBLICATION;

api_protect_course_script(true);

// Including necessary files
require_once 'work.lib.php';
require_once api_get_path(LIBRARY_PATH).'fileManage.lib.php';
require_once api_get_path(LIBRARY_PATH).'fileUpload.lib.php';
require_once api_get_path(LIBRARY_PATH).'fileDisplay.lib.php';

$this_section = SECTION_COURSES;

$work_id = isset($_REQUEST['id']) ? intval($_REQUEST['id']) : null;
$documentId = isset($_REQUEST['document_id']) ? intval($_REQUEST['document_id']) : null;

$is_allowed_to_edit = api_is_allowed_to_edit();
$course_id = api_get_course_int_id();
$user_id = api_get_user_id();
$userInfo = api_get_user_info();
$session_id = api_get_session_id();
$course_code = api_get_course_id();
$course_info = api_get_course_info();
$group_id = api_get_group_id();

if (empty($work_id)) {
    api_not_allowed(true);
}

$workInfo = get_work_data_by_id($work_id);

if (empty($workInfo)) {
    api_not_allowed(true);
}

allowOnlySubscribedUser($user_id, $work_id, $course_id);

$is_course_member = CourseManager::is_user_subscribed_in_real_or_linked_course($user_id, $course_code, $session_id);
$is_course_member = $is_course_member || api_is_platform_admin();

if ($is_course_member == false) {
    api_not_allowed(true);
}

$check = Security::check_token('post');
$token = Security::get_token();

$student_can_edit_in_session = api_is_allowed_to_session_edit(false, true);

$homework = get_work_assignment_by_id($workInfo['id']);
$validationStatus = getWorkDateValidationStatus($homework);

$interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'work/work.php?'.api_get_cidreq(), 'name' => get_lang('StudentPublications'));
$interbreadcrumb[] = array('url' => api_get_path(WEB_CODE_PATH).'work/work_list.php?'.api_get_cidreq().'&id='.$work_id, 'name' =>  $workInfo['title']);
$interbreadcrumb[] = array('url' => '#', 'name'  => get_lang('UploadFromTemplate'));

$form = new FormValidator('form', 'POST', api_get_self()."?".api_get_cidreq()."&id=".$work_id, '', array('enctype' => "multipart/form-data"));
setWorkUploadForm($form, false);
$form->addElement('hidden', 'document_id', $documentId);
$form->addElement('hidden', 'id', $work_id);
$form->addElement('hidden', 'sec_token', $token);

$documentTemplateData = getDocumentTemplateFromWork($work_id, $course_info);
if (!empty($documentTemplateData)) {
    $defaults['title'] = $userInfo['complete_name'].'_'.$documentTemplateData['title'].'_'.substr(api_get_utc_datetime(), 0, 10);
    $defaults['description'] = $documentTemplateData['file_content'];
}

$form->setDefaults($defaults);

$error_message = null;

$succeed = false;
if ($form->validate()) {
    if ($student_can_edit_in_session && $check) {
        $values = $form->getSubmitValues();
        // Process work
        $error_message = processWorkForm($workInfo, $values, $course_info, $id_session, $group_id, $user_id);
        $script = 'work_list.php';
        if ($is_allowed_to_edit) {
            $script = 'work_list_all.php';
        }
        header('Location: '.api_get_path(WEB_CODE_PATH).'work/'.$script.'?'.api_get_cidreq().'&id='.$work_id.'&error_message='.$error_message);
        exit;
    } else {
        // Bad token or can't add works
        $error_message = Display::return_message(get_lang('IsNotPosibleSaveTheDocument'), 'error');
    }
}

$htmlHeadXtra[] = to_javascript_work();
Display :: display_header(null);

if (!empty($work_id)) {
    echo $validationStatus['message'];
    if ($is_allowed_to_edit) {
        if (api_resource_is_locked_by_gradebook($work_id, LINK_STUDENTPUBLICATION)) {
            echo Display::display_warning_message(get_lang('ResourceLockedByGradebook'));
        } else {
            $form->display();
        }
    } elseif ($student_can_edit_in_session && $validationStatus['has_ended'] == false) {
        $form->display();
    } else {
        Display::display_error_message(get_lang('ActionNotAllowed'));
    }
} else {
    Display::display_error_message(get_lang('ActionNotAllowed'));
}

Display :: display_footer();