<?php

// This file keeps track of upgrades to
// the scorm module
//
// Sometimes, changes between versions involve
// alterations to database structures and other
// major things that may break installations.
//
// The upgrade function in this file will attempt
// to perform all the necessary actions to upgrade
// your older installation to the current version.
//
// If there's something it cannot do itself, it
// will tell you what you need to do.
//
// The commands in here will all be database-neutral,
// using the methods of database_manager class
//
// Please do not forget to use upgrade_set_timeout()
// before any action that may take longer time to finish.

/**
 * @global moodle_database $DB
 * @param int $oldversion
 * @return bool
 */
function xmldb_scorm_upgrade($oldversion) {
    global $CFG, $DB;

    $dbman = $DB->get_manager();

//===== 1.9.0 upgrade line ======//

    // Adding missing 'whatgrade' field to table scorm
    if ($oldversion < 2008073000) {
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('whatgrade');
        $field->set_attributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'grademethod');

        /// Launch add field whatgrade
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
            $whatgradefixed = get_config('scorm', 'whatgradefixed');
            if (empty($whatgradefixed)) {
                /// fix bad usage of whatgrade/grading method.
                $scorms = $DB->get_records('scorm');
                foreach ($scorms as $scorm) {
                    $scorm->whatgrade = $scorm->grademethod/10;
                    $DB->update_record('scorm', $scorm);
                }
            }
        } else {
            //dump this config var as it isn't needed anymore.
            unset_config('whatgradefixed', 'scorm');
        }

        upgrade_mod_savepoint(true, 2008073000, 'scorm');
    }

     if ($oldversion < 2008082500) {

    /// Define field scormtype to be added to scorm
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('scormtype', XMLDB_TYPE_CHAR, '50', null, XMLDB_NOTNULL, null, 'local', 'name');

    /// Launch add field scormtype
        $dbman->add_field($table, $field);

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008082500, 'scorm');
    }

    if ($oldversion < 2008090300) {

    /// Define field sha1hash to be added to scorm
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('sha1hash', XMLDB_TYPE_CHAR, '40', null, null, null, null, 'updatefreq');

    /// Launch add field sha1hash
        $dbman->add_field($table, $field);

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090300, 'scorm');
    }

    if ($oldversion < 2008090301) {

    /// Define field revision to be added to scorm
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('revision', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'md5hash');

    /// Launch add field revision
        $dbman->add_field($table, $field);

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090301, 'scorm');
    }

    if ($oldversion < 2008090302) {
        $sql = "UPDATE {scorm}
                   SET scormtype = 'external'
                 WHERE reference LIKE ? OR reference LIKE ? OR reference LIKE ?";
        $DB->execute($sql, array('http://%imsmanifest.xml', 'https://%imsmanifest.xml', 'www.%imsmanifest.xml'));

        $sql = "UPDATE {scorm}
                   SET scormtype = 'localsync'
                 WHERE reference LIKE ? OR reference LIKE ? OR reference LIKE ?
                       OR reference LIKE ? OR reference LIKE ? OR reference LIKE ?";
        $DB->execute($sql, array('http://%.zip', 'https://%.zip', 'www.%.zip', 'http://%.pif', 'https://%.pif', 'www.%.pif'));

        $sql = "UPDATE {scorm} SET scormtype = 'imsrepository' WHERE reference LIKE ?";
        $DB->execute($sql, array('#%'));

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090302, 'scorm');
    }

    if ($oldversion < 2008090303) {
        //remove obsoleted config settings
        unset_config('scorm_advancedsettings');
        unset_config('scorm_windowsettings');

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090303, 'scorm');
    }

    if ($oldversion < 2008090304) {
        /////////////////////////////////////
        /// new file storage upgrade code ///
        /////////////////////////////////////

        require_once("$CFG->dirroot/mod/scorm/db/upgradelib.php");

        $fs = get_file_storage();

        $sqlfrom = "FROM {scorm} s
                    JOIN {modules} m ON m.name = 'scorm'
                    JOIN {course_modules} cm ON (cm.module = m.id AND cm.instance = s.id)";

        $count = $DB->count_records_sql("SELECT COUNT('x') $sqlfrom");

        $rs = $DB->get_recordset_sql("SELECT s.id, s.scormtype, s.reference, s.course, cm.id AS cmid $sqlfrom ORDER BY s.course, s.id");
        if ($rs->valid()) {

            $pbar = new progress_bar('migratescormfiles', 500, true);

            $i = 0;
            foreach ($rs as $scorm) {
                $i++;
                upgrade_set_timeout(180); // set up timeout, may also abort execution
// (Shirai205): Moodle2.0へのMigrationでSCORM更新時にどのパスのコンテンツを更新しているのかパスを表示する改良 (2010/12/14)
// (Shirai205): ここから修正
//              $pbar->update($i, $count, "Migrating scorm files - $i/$count.");
                $pbar->update($i, $count, "Migrating scorm files - $i/$count.<br />"."$CFG->dataroot/$scorm->course/$CFG->moddata/scorm/$scorm->id/$scorm->reference");
// (Shirai205): ここまで修正

                $context       = get_context_instance(CONTEXT_MODULE, $scorm->cmid);
                $coursecontext = get_context_instance(CONTEXT_COURSE, $scorm->course);

                if ($scorm->scormtype === 'local' and preg_match('/.*(\.zip|\.pif)$/i', $scorm->reference)) {
                    // first copy local packages if found - do not delete in case they are shared ;-)
                    $packagefile = clean_param($scorm->reference, PARAM_PATH);
                    $pathnamehash = sha1("/$coursecontext->id/course/legacy/0/$packagefile");
                    if ($file = $fs->get_file_by_hash($pathnamehash)) {
                        $file_record = array('contextid'=>$context->id, 'component'=>'mod_scorm', 'filearea'=>'package',
                                             'itemid'=>0, 'filepath'=>'/');
                        try {
                            $fs->create_file_from_storedfile($file_record, $file);
                        } catch (Exception $x) {
                            // ignore any errors, we can not do much anyway
                        }
// (FS_CONVERTER): ここから
//                      $scorm->reference = $file->get_filepath().$file->get_filename();
                        $scorm->reference = $file->get_filepath().fsCharset2currentCharset($file->get_filename());
// (FS_CONVERTER): ここまで

                    } else {
                        $scorm->reference = '';
                    }
                    $DB->update_record('scorm', $scorm);
                    // the package should be already extracted, we need to move the files there
                    // just in case somebody modified it directly there
                    scorm_migrate_moddata_files($scorm, $context);

                } else if ($scorm->scormtype === 'local' and preg_match('/.*\/imsmanifest\.xml$/i', $scorm->reference)) {
                    // ignore imsmanifest in course root because we would be duplicating all course files which is not acceptable
                    // moddata dir is not used at all, ignore any rubbish there
                    $manifest = clean_param($scorm->reference, PARAM_PATH);

                    $pathnamehash = sha1("/$coursecontext->id/course/legacy/0/$manifest");
                    if ($file = $fs->get_file_by_hash($pathnamehash)) {
// (FS_CONVERTER): ここから
//                      $scorm->reference = $file->get_filepath().$file->get_filename();
                        $scorm->reference = $file->get_filepath().fsCharset2currentCharset($file->get_filename());
// (FS_CONVERTER): ここまで

                        $manifestdir = '/'.str_ireplace('/imsmanifest.xml', '', $manifest).'/';
                        $pregmanifestdir = preg_quote($manifestdir, '/');
                        $file_record = array('contextid'=>$context->id, 'component'=>'mod_scorm', 'filearea'=>'content', 'itemid'=>0);
                        if ($files = $fs->get_directory_files($coursecontext->id, 'course', 'legacy', 0, $manifestdir, true)) {
                            foreach ($files as $file) {
                                $file_record['filepath'] = preg_replace("/^$pregmanifestdir/", '/', $file->get_filepath());
                                try {
                                    $fs->create_file_from_storedfile($file_record, $file);
                                } catch (Exception $x) {
                                    // ignore any errors, we can not do much anyway
                                }
                            }
                        }

                    } else {
                        $scorm->reference = '';
                    }
                    $DB->update_record('scorm', $scorm);

                } else {
                    // just try to migrate anything from moddata
                    scorm_migrate_moddata_files($scorm, $context);
                }

                // remove dirs if empty
                @rmdir("$CFG->dataroot/$scorm->course/$CFG->moddata/scorm/$scorm->id/");
                @rmdir("$CFG->dataroot/$scorm->course/$CFG->moddata/scorm/");
                @rmdir("$CFG->dataroot/$scorm->course/$CFG->moddata/");
            }
        }
        $rs->close();

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090304, 'scorm');
    }


    if ($oldversion < 2008090305) {

    /// Define new fields forcecompleted, forcenewattempt, displayattemptstatus, and displaycoursestructure to be added to scorm
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('forcecompleted', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 1, 'maxattempt');
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('forcenewattempt', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 0, 'forcecompleted');
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('lastattemptlock', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 0, 'forcenewattempt');
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('displayattemptstatus', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 1, 'lastattemptlock');
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('displaycoursestructure', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 1, 'displayattemptstatus');
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
        }

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090305, 'scorm');
    }


    // remove redundant config values
    if ($oldversion < 2008090306) {
        /*
         * comment this out as it is handled by the update mark 2008090310 below
         * left for historical documentation as some early adopters may have done
         * this already.
         $redundant_config = array(
                         'scorm_allowapidebug',
                         'scorm_allowtypeexternal',
                         'scorm_allowtypeimsrepository',
                         'scorm_allowtypelocalsync',
                         'scorm_apidebugmask',
                         'scorm_frameheight',
                         'scorm_framewidth',
                         'scorm_maxattempts',
                         'scorm_updatetime');
        foreach ($redundant_config as $rcfg) {
            if (isset($CFG->$rcfg)) {
                unset_config($rcfg);
            }
        }
         */
        /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090306, 'scorm');
    }



    // remove redundant config values
    if ($oldversion < 2008090307) {
        /*
         * comment this out as it is handled by the update mark 2008090310 below
         * left for historical documentation as some early adopters may have done
         * this already.
         $redundant_config = array(
                         'scorm_allowapidebug',
                         'scorm_allowtypeexternal',
                         'scorm_allowtypeimsrepository',
                         'scorm_allowtypelocalsync',
                         'scorm_apidebugmask',
                         'scorm_frameheight',
                         'scorm_framewidth',
                         'scorm_maxattempts',
                         'scorm_updatetime',
                         'scorm_resizable',
                         'scorm_scrollbars',
                         'scorm_directories',
                         'scorm_location',
                         'scorm_menubar',
                         'scorm_toolbar',
                         'scorm_status',
                         'scorm_grademethod',
                         'scorm_maxgrade',
                         'scorm_whatgrade',
                         'scorm_popup',
                         'scorm_skipview',
                         'scorm_hidebrowse',
                         'scorm_hidetoc',
                         'scorm_hidenav',
                         'scorm_auto',
                         'scorm_updatefreq'
         );
        foreach ($redundant_config as $rcfg) {
            if (isset($CFG->$rcfg)) {
                unset_config($rcfg);
            }
        }
         */

        /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090307, 'scorm');
    }

    if ($oldversion < 2008090308) {
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('timeopen', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'height');
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
        }
        $field = new xmldb_field('timeclose', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'timeopen');
        if (!$dbman->field_exists($table,$field)) {
            $dbman->add_field($table, $field);
        }

        /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090308, 'scorm');
    }


    if ($oldversion < 2008090310) {
        // take above blocks that delete config and move the values in to config_plugins

        $redundant_config = array(
                         'scorm_allowapidebug',
                         'scorm_allowtypeexternal',
                         'scorm_allowtypeimsrepository',
                         'scorm_allowtypelocalsync',
                         'scorm_apidebugmask',
                         'scorm_frameheight',
                         'scorm_framewidth',
                         'scorm_maxattempts',
                         'scorm_updatetime',
                         'scorm_resizable',
                         'scorm_scrollbars',
                         'scorm_directories',
                         'scorm_location',
                         'scorm_menubar',
                         'scorm_toolbar',
                         'scorm_status',
                         'scorm_grademethod',
                         'scorm_maxgrade',
                         'scorm_whatgrade',
                         'scorm_popup',
                         'scorm_skipview',
                         'scorm_hidebrowse',
                         'scorm_hidetoc',
                         'scorm_hidenav',
                         'scorm_auto',
                         'scorm_updatefreq',
                         'scorm_displayattemptstatus',
                         'scorm_displaycoursestructure',
                         'scorm_forcecompleted',
                         'scorm_forcenewattempt',
                         'scorm_lastattemptlock'
         );

        foreach ($redundant_config as $rcfg) {
            if (isset($CFG->$rcfg)) {
                $shortname = substr($rcfg, 6);
                set_config($shortname, $CFG->$rcfg, 'scorm');
                unset_config($rcfg);
            }
        }

        /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2008090310, 'scorm');
    }

    if ($oldversion < 2009042000) {

    /// Rename field summary on table scorm to intro
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('summary', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null, 'reference');

    /// Launch rename field summary
        $dbman->rename_field($table, $field, 'intro');

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2009042000, 'scorm');
    }

    if ($oldversion < 2009042001) {

    /// Define field introformat to be added to scorm
        $table = new xmldb_table('scorm');
        $field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');

    /// Launch add field introformat
        if (!$dbman->field_exists($table, $field)) {
            $dbman->add_field($table, $field);
        }

        // conditionally migrate to html format in intro
        if ($CFG->texteditors !== 'textarea') {
            $rs = $DB->get_recordset('scorm', array('introformat'=>FORMAT_MOODLE), '', 'id,intro,introformat');
            foreach ($rs as $s) {
                $s->intro       = text_to_html($s->intro, false, false, true);
                $s->introformat = FORMAT_HTML;
                $DB->update_record('scorm', $s);
                upgrade_set_timeout();
            }
            $rs->close();
        }

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2009042001, 'scorm');
    }

    if ($oldversion < 2009042002) {

    /// Define field introformat to be added to scorm
        $table = new xmldb_table('scorm_scoes');
        $field = new xmldb_field('launch', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null);

    /// Launch add field introformat
        $dbman->change_field_type($table, $field);

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2009042002, 'scorm');
    }
    if ($oldversion < 2010070800) {
    //check to see if this has already been tidied up by a 1.9 upgrade.
        $grademethodfixed = get_config('scorm', 'grademethodfixed');
        if (empty($grademethodfixed)) {
            /// fix bad usage of whatgrade/grading method.
            $scorms = $DB->get_records('scorm');
            if (!empty($scorm)) {
                foreach ($scorms as $scorm) {
                    $scorm->grademethod = $scorm->grademethod%10;
                    $DB->update_record('scorm', $scorm);
                }
            }
        } else {
            //dump this config var as it isn't needed anymore.
            unset_config('grademethodfixed', 'scorm');
        }

    /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2010070800, 'scorm');
    }
    if ($oldversion < 2010092400) {
        $count = $DB->count_records('scorm', array('scormtype'=>'external'));
        if (!empty($count)) {
            set_config('allowtypeexternal', '1', 'scorm');
        }
        $count = $DB->count_records('scorm', array('scormtype'=>'localsync'));
        if (!empty($count)) {
            set_config('allowtypelocalsync', '1', 'scorm');
        }
        $count = $DB->count_records('scorm', array('scormtype'=>'imsrepository'));
        if (!empty($count)) {
            set_config('allowtypeimsrepository', '1', 'scorm');
        }
        /// scorm savepoint reached
        upgrade_mod_savepoint(true, 2010092400, 'scorm');
    }

    if ($oldversion < 2011011400) {
        // Fix scorm in the post table after upgrade from 1.9
        $table = new xmldb_table('scorm');
        $columns = $DB->get_columns('scorm');

        // forcecompleted should be int(1) not null default 1
        // Changing to NOT NULL, let's fill the current nulls with default 1
        $DB->set_field('scorm', 'forcecompleted', 1, array('forcecompleted' => null));
        $field = new xmldb_field('forcecompleted', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 1, 'maxattempt');
        if ($dbman->field_exists($table, $field)) {
            $dbman->change_field_precision($table, $field);
        }

        if (array_key_exists('forcenewattempt', $columns) && empty($columns['forcenewattempt']->not_null)) {
            // forcenewattempt should be int(1) not null default 0
            // Changing to NOT NULL, let's fill the current nulls with default 0
            $DB->set_field('scorm', 'forcenewattempt', 0, array('forcenewattempt' => null));
            $field = new xmldb_field('forcenewattempt', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 0, 'forcecompleted');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_notnull($table, $field);
            }
        }

        if (array_key_exists('lastattemptlock', $columns) && empty($columns['lastattemptlock']->not_null)) {
            // lastattemptlock should be int(1) not null default 0
            // Changing to NOT NULL, let's fill the current nulls with default 0
            $DB->set_field('scorm', 'lastattemptlock', 0, array('lastattemptlock' => null));
            $field = new xmldb_field('lastattemptlock', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 0, 'forcenewattempt');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_notnull($table, $field);
            }
        }

        if (array_key_exists('displayattemptstatus', $columns) && empty($columns['displayattemptstatus']->not_null)) {
            // displayattemptstatus should be int(1) not null default 1
            // Changing to NOT NULL, let's fill the current nulls with default 1
            $DB->set_field('scorm', 'displayattemptstatus', 1, array('displayattemptstatus' => null));
            $field = new xmldb_field('displayattemptstatus', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 1, 'lastattemptlock');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_notnull($table, $field);
            }
        }

        if (array_key_exists('displaycoursestructure', $columns) && empty($columns['displaycoursestructure']->not_null)) {
            // displaycoursestructure should be int(1) not null default 1
            // Changing to NOT NULL, let's fill the current nulls with default 1
            $DB->set_field('scorm', 'displaycoursestructure', 1, array('displaycoursestructure' => null));
            $field = new xmldb_field('displaycoursestructure', XMLDB_TYPE_INTEGER, 1, null, XMLDB_NOTNULL, null, 1, 'displayattemptstatus');
            if ($dbman->field_exists($table, $field)) {
                $dbman->change_field_notnull($table, $field);
            }
        }

        upgrade_mod_savepoint(true, 2011011400, 'scorm');
    }

    if ($oldversion < 2011021402) {
        unset_config('updatetime', 'scorm');
        upgrade_mod_savepoint(true, 2011021402, 'scorm');
    }

    if ($oldversion < 2011021403) {
        //MDL-28295 the behaviour of pop-up windows has now changed - it now loads the full Player in the window
        //because of this, pop-up windows now include the TOC and the nav bar - disabling these for existing SCORMS
        //as it is a change that most users won't expect.
        //get all SCORMS that use a new window.
        require_once($CFG->dirroot."/mod/scorm/lib.php");
        $rs = $DB->get_recordset('scorm', array('popup' => 1), '', 'id,hidetoc,hidenav');
        foreach ($rs as $scorm) {
            $scorm->hidetoc = 1;
            $scorm->hidenav = 1;
            $DB->update_record('scorm', $scorm);
        }
        $rs->close();

        upgrade_mod_savepoint(true, 2011021403, 'scorm');
    }
    return true;
}


