<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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.
//
// Moodle 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 Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * Upgrade code for the feedback_editpdf module.
 *
 * @package   assignfeedback_editpdf
 * @copyright 2013 Jerome Mouneyrac
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

/**
 * EditPDF upgrade code
 * @param int $oldversion
 * @return bool
 */
function xmldb_assignfeedback_editpdf_upgrade($oldversion) {
    global $CFG, $DB;

    $dbman = $DB->get_manager();


<     // Automatically generated Moodle v3.5.0 release upgrade line.



>     // Automatically generated Moodle v3.9.0 release upgrade line.


    // Put any upgrade step following this.


<     if ($oldversion < 2018051401) {
<         $table = new xmldb_table('assignfeedback_editpdf_queue');
<         $field = new xmldb_field('attemptedconversions', XMLDB_TYPE_INTEGER, '10', null,
<             XMLDB_NOTNULL, null, 0, 'submissionattempt');
< 
<         if (!$dbman->field_exists($table, $field)) {
<             $dbman->add_field($table, $field);
<         }
< 
<         // Attempts are removed from the queue after being processed, a duplicate row won't achieve anything productive.
<         // So look for any duplicates and remove them so we can add a unique key.
<         $sql = "SELECT MIN(id) as minid, submissionid, submissionattempt



>     if ($oldversion < 2021060400) {
>         // Remove submissions from the processing queue that have been processed.
>         $sql = 'DELETE


                FROM {assignfeedback_editpdf_queue}

<                 GROUP BY submissionid, submissionattempt
<                 HAVING COUNT(id) > 1";
< 
<         if ($duplicatedrows = $DB->get_recordset_sql($sql)) {
<             foreach ($duplicatedrows as $row) {
<                 $DB->delete_records_select('assignfeedback_editpdf_queue',
<                     'submissionid = :submissionid AND submissionattempt = :submissionattempt AND id <> :minid', (array)$row);
<             }
<         }
<         $duplicatedrows->close();
< 
<         // Define key submissionid-submissionattempt to be added to assignfeedback_editpdf_queue.
<         $table = new xmldb_table('assignfeedback_editpdf_queue');
<         $key = new xmldb_key('submissionid-submissionattempt', XMLDB_KEY_UNIQUE, ['submissionid', 'submissionattempt']);



>                  WHERE EXISTS (SELECT 1
>                                  FROM {assign_submission} s,
>                                       {assign_grades} g
>                                 WHERE s.id = submissionid
>                                   AND s.assignment = g.assignment
>                                   AND s.userid = g.userid
>                                   AND s.attemptnumber = g.attemptnumber)';




<         $dbman->add_key($table, $key);



>         $DB->execute($sql);




<         upgrade_plugin_savepoint(true, 2018051401, 'assignfeedback', 'editpdf');



>         // Editpdf savepoint reached.
>         upgrade_plugin_savepoint(true, 2021060400, 'assignfeedback', 'editpdf');


    }


<     // Automatically generated Moodle v3.6.0 release upgrade line.



>     // Automatically generated Moodle v4.0.0 release upgrade line.


    // Put any upgrade step following this.


<     if ($oldversion < 2019010800) {
<         // Define table assignfeedback_editpdf_rot to be created.
<         $table = new xmldb_table('assignfeedback_editpdf_rot');
< 
<         // Adding fields to table assignfeedback_editpdf_rot.
<         $table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
<         $table->add_field('gradeid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
<         $table->add_field('pageno', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
<         $table->add_field('pathnamehash', XMLDB_TYPE_TEXT, null, null, XMLDB_NOTNULL, null, null);
<         $table->add_field('isrotated', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0');
<         $table->add_field('degree', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
< 
<         // Adding keys to table assignfeedback_editpdf_rot.
<         $table->add_key('primary', XMLDB_KEY_PRIMARY, ['id']);
<         $table->add_key('gradeid', XMLDB_KEY_FOREIGN, ['gradeid'], 'assign_grades', ['id']);
< 
<         // Adding indexes to table assignfeedback_editpdf_rot.
<         $table->add_index('gradeid_pageno', XMLDB_INDEX_UNIQUE, ['gradeid', 'pageno']);
< 
<         // Conditionally launch create table for assignfeedback_editpdf_rot.
<         if (!$dbman->table_exists($table)) {
<             $dbman->create_table($table);



>     if ($oldversion < 2022061000) {
>         $table = new xmldb_table('assignfeedback_editpdf_queue');
>         if ($dbman->table_exists($table)) {
>             // Convert not yet converted submissions into adhoc tasks.
>             $rs = $DB->get_recordset('assignfeedback_editpdf_queue');
>             foreach ($rs as $record) {
>                 $data = [
>                     'submissionid' => $record->submissionid,
>                     'submissionattempt' => $record->submissionattempt,
>                 ];
>                 $task = new assignfeedback_editpdf\task\convert_submission;
>                 $task->set_custom_data($data);
>                 \core\task\manager::queue_adhoc_task($task, true);
>             }
>             $rs->close();
> 
>             // Drop the table.
>             $dbman->drop_table($table);


        }

        // Editpdf savepoint reached.

<         upgrade_plugin_savepoint(true, 2019010800, 'assignfeedback', 'editpdf');



>         upgrade_plugin_savepoint(true, 2022061000, 'assignfeedback', 'editpdf');


    }


<     // Automatically generated Moodle v3.7.0 release upgrade line.
<     // Put any upgrade step following this.



>     if ($oldversion < 2022082200) {
>         // Conversion records need to be removed in order for conversions to restart.
>         $DB->delete_records('file_conversion');




<     // Automatically generated Moodle v3.8.0 release upgrade line.
<     // Put any upgrade step following this.



>         // Schedule an adhoc task to fix existing stale conversions.
>         $task = new \assignfeedback_editpdf\task\bump_submission_for_stale_conversions();
>         \core\task\manager::queue_adhoc_task($task);




<     // Automatically generated Moodle v3.9.0 release upgrade line.
<     // Put any upgrade step following this.



>         upgrade_plugin_savepoint(true, 2022082200, 'assignfeedback', 'editpdf');
>     }




<     // Automatically generated Moodle v3.10.0 release upgrade line.



>     // Automatically generated Moodle v4.1.0 release upgrade line.


    // Put any upgrade step following this.


<     if ($oldversion < 2020110901) {
<         // Remove submissions from the processing queue that have been processed.
<         $sql = 'DELETE
<                   FROM {assignfeedback_editpdf_queue}
<                  WHERE EXISTS (SELECT 1
<                                  FROM {assign_submission} s,
<                                       {assign_grades} g
<                                 WHERE s.id = submissionid
<                                   AND s.assignment = g.assignment
<                                   AND s.userid = g.userid
<                                   AND s.attemptnumber = g.attemptnumber)';



>     if ($oldversion < 2022112801) {
>         $task = new \assignfeedback_editpdf\task\remove_orphaned_editpdf_files();
>         \core\task\manager::queue_adhoc_task($task);




<         $DB->execute($sql);
< 
<         // Editpdf savepoint reached.
<         upgrade_plugin_savepoint(true, 2020110901, 'assignfeedback', 'editpdf');



>         upgrade_plugin_savepoint(true, 2022112801, 'assignfeedback', 'editpdf');


    }

    return true;
}