<?php
/* For licensing terms, see /license.txt */
/**
 * @package chamilo.backup
 */
/**
 * Code
 */

// Setting the global file that gets the general configuration, the databases, the languages, ...
require_once '../inc/global.inc.php';
$current_course_tool  = TOOL_COURSE_MAINTENANCE;
api_protect_course_script(true);

// Including additional libraries
require_once 'classes/CourseBuilder.class.php';
require_once 'classes/CourseRestorer.class.php';
require_once 'classes/CourseSelectForm.class.php';

// Notice for unauthorized people.
if (!api_is_allowed_to_edit()) {
    api_not_allowed(true);
}

// Remove memory and time limits as much as possible as this might be a long process...
if (function_exists('ini_set')) {
    api_set_memory_limit('256M');
    ini_set('max_execution_time', 1800);
    //ini_set('post_max_size', "512M");
}

// Breadcrumbs
$interbreadcrumb[] = array(
    'url' => '../course_info/maintenance.php?'.api_get_cidreq(),
    'name' => get_lang('Maintenance'),
);

// The section (for the tabs)
$this_section = SECTION_COURSES;

// Display the header
Display::display_header(get_lang('CopyCourse'));
echo Display::page_header(get_lang('CopyCourse'));

/* MAIN CODE */

// If a CourseSelectForm is posted or we should copy all resources, then copy them
if (Security::check_token('post') && (
        (
            isset($_POST['action']) &&
            $_POST['action'] == 'course_select_form') || (
                isset($_POST['copy_option']) && $_POST['copy_option'] == 'full_copy'
        )
    )
) {
    // Clear token
    Security::clear_token();

    if (isset($_POST['action']) && $_POST['action'] == 'course_select_form') {
        $course = CourseSelectForm :: get_posted_course('copy_course');
    } else {
        $cb = new CourseBuilder();
        $course = $cb->build();
    }
    $cr = new CourseRestorer($course);
    $cr->set_file_option($_POST['same_file_name_option']);
    $cr->restore($_POST['destination_course']);
    Display::display_normal_message(get_lang('CopyFinished').': <a href="'.api_get_course_url($_POST['destination_course']).'">'.$_POST['destination_course'].'</a>', false);
} elseif (Security::check_token('post') && (
        isset ($_POST['copy_option']) &&
        $_POST['copy_option'] == 'select_items'
    )
) {
    // Clear token
    Security::clear_token();

    $cb = new CourseBuilder();
    $course = $cb->build();
    $hiddenFields = array();
    $hiddenFields['same_file_name_option'] = $_POST['same_file_name_option'];
    $hiddenFields['destination_course']    = $_POST['destination_course'];
    // Add token to Course select form
    $hiddenFields['sec_token'] = Security::get_token();
    CourseSelectForm::display_form($course, $hiddenFields, true);
} else {
    $table_c = Database :: get_main_table(TABLE_MAIN_COURSE);
    $table_cu = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
    $user_info = api_get_user_info();
    $course_info = api_get_course_info();
    $sql = 'SELECT *
            FROM '.$table_c.' c, '.$table_cu.' cu
            WHERE cu.c_id = c.id';
    if (!api_is_platform_admin()) {
        $sql .= ' AND cu.status=1 ';
    }
    $sql .= ' AND
            cu.user_id = '.$user_info['user_id'].' AND
            c.id != '."'".$course_info['real_id']."'".'
            ORDER BY title ASC';
    $res = Database::query($sql);
    if (Database::num_rows($res) == 0) {
        Display::display_normal_message(get_lang('NoDestinationCoursesAvailable'));
    } else {
        $options = array();
        while ($obj = Database::fetch_object($res)) {
            $courseInfo = api_get_course_info_by_id($obj->c_id);
            $options[$courseInfo['code']] = $obj->title;
        }

        $form = new FormValidator('copy_course', 'post', 'copy_course.php?'.api_get_cidreq());
        $form->addElement('select', 'destination_course', get_lang('SelectDestinationCourse'), $options);

        $group = array();
        $group[] = $form->createElement('radio', 'copy_option', null, get_lang('FullCopy'), 'full_copy');
        $group[] = $form->createElement('radio', 'copy_option', null, get_lang('LetMeSelectItems'), 'select_items');
        $form->addGroup($group, '', get_lang('SelectOptionForBackup'));

        $group = array();
        $group[] = $form->createElement('radio', 'same_file_name_option', null, get_lang('SameFilenameSkip'), FILE_SKIP);
        $group[] = $form->createElement('radio', 'same_file_name_option', null, get_lang('SameFilenameRename'), FILE_RENAME);
        $group[] = $form->createElement('radio', 'same_file_name_option', null, get_lang('SameFilenameOverwrite'), FILE_OVERWRITE);
        $form->addGroup($group, '', get_lang('SameFilename'));
        $form->add_progress_bar();
        $form->addButtonSave(get_lang('CopyCourse'));
        $form->setDefaults(array('copy_option' =>'select_items','same_file_name_option' => FILE_OVERWRITE));

        // Add Security token
        $token = Security::get_token();
        $form->addElement('hidden', 'sec_token');
        $form->setConstants(array('sec_token' => $token));

        $form->display();
    }
}

Display::display_footer();
