<?PHP //$Id$
    //This script is used to configure and execute the backup proccess.

    //Define some globals for all the script

    //MUST CHANGE WITH FINAL BACKUP LOCATION !! WITHOUT TRAILING SLASH !!
    //ALL RELATIVE FROM THE LOCATION OF THE backup.php SCRIPT !!!

    $moodle_home = "..";
    $mods_home = "../mod";

    //END MUST CHANGE

    //Units used
    require_once ("$moodle_home/config.php");
    require_once ("$moodle_home/version.php");
    require_once ("backup_version.php");
    require_once ("db/backup_$CFG->dbtype.php");
    require_once ("lib.php");
    require_once ("backuplib.php");

    //Optional variables    
    optional_variable($id);       // course id

    //Check login       
    require_login();

    //Check admin
    if (!isadmin()) {
        error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
    }

    //Check site
    if (!$site = get_site()) {
        error("Site not found!");
    }

    //Check necessary functions exists. Thanks to gregb@crowncollege.edu
    backup_required_functions();
    
    //Check backup_version
    upgrade_backup_db($backup_version,$backup_release,"backup.php");

    //Get strings
    $strcoursebackup = get_string("coursebackup");
    $stradministration = get_string("administration");

    //If no course has been selected or cancel button pressed
    if (!$id or $cancel) {
        print_header("$site->shortname: $strcoursebackup", $site->fullname,
                     "<A HREF=\"$moodle_home/$CFG->admin/index.php\">$stradministration</A> -> $strcoursebackup");

        if ($courses = get_courses()) {
            print_heading(get_string("choosecourse"));
            print_simple_box_start("CENTER");
            foreach ($courses as $course) {
            echo "<A HREF=\"backup.php?id=$course->id\">$course->fullname ($course->shortname)</A><BR>";
            }
            print_simple_box_end();
        } else {
            print_heading(get_string("nocoursesyet"));
            print_continue("$moodle_home/$CFG->admin/index.php");
        }
        print_footer();
        exit;
    }

    //Get and check course
    if (! $course = get_record("course", "id", $id)) {
        error("Course ID was incorrect (can't find it)");
    }
    //Print header
    print_header("$site->shortname: $strcoursebackup", $site->fullname,
                 "<A HREF=\"$moodle_home/$CFG->admin/index.php\">$stradministration</A> ->
                  <A HREF=\"backup.php\">$strcoursebackup</A> -> $course->fullname ($course->shortname)");

    //Print form     
    print_heading("$strcoursebackup: $course->fullname ($course->shortname)");
    print_simple_box_start("center", "", "$THEME->cellheading");

    //Adjust some php variables to the execution of this script
    ini_set("max_execution_time","3000");
    ini_set("memory_limit","56M");

    //Call the form, depending the step we are
    if (!$launch) {
        include_once("backup_form.html");
    } else if ($launch == "check") {
        include_once("backup_check.html");
    } else if ($launch == "execute") {
        include_once("backup_execute.html");
    }
    print_simple_box_end();

    //Print footer  
    print_footer();

?>
