<?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/>.

/**
 * This file is part of the Database module for Moodle
 *
 * @copyright 2005 Martin Dougiamas  http://dougiamas.com
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @package mod_data
 */


> use core\notification;
require_once('../../config.php');
> use mod_data\local\importer\preset_existing_importer;
require_once('lib.php');
> use mod_data\local\importer\preset_importer;
require_once($CFG->dirroot.'/mod/data/preset_form.php');
> use mod_data\local\importer\preset_upload_importer;

> use mod_data\manager;
$id             = optional_param('id', 0, PARAM_INT);            // course module id
> 


$d              = optional_param('d', 0, PARAM_INT);             // database id
$fid            = optional_param('fid', 0 , PARAM_INT);          // update field id
$newtype        = optional_param('newtype','',PARAM_ALPHA);      // type of the new field
$mode           = optional_param('mode','',PARAM_ALPHA);
$action         = optional_param('action', '', PARAM_ALPHA);
$fullname       = optional_param('fullname', '', PARAM_PATH);    // Directory the preset is in.
$defaultsort    = optional_param('defaultsort', 0, PARAM_INT);
$defaultsortdir = optional_param('defaultsortdir', 0, PARAM_INT);
$cancel         = optional_param('cancel', 0, PARAM_BOOL);

if ($cancel) {
    $mode = 'list';
}

$url = new moodle_url('/mod/data/field.php');
if ($fid !== 0) {
    $url->param('fid', $fid);
}
if ($newtype !== '') {
    $url->param('newtype', $newtype);
}
if ($mode !== '') {
    $url->param('mode', $mode);
}
if ($defaultsort !== 0) {
    $url->param('defaultsort', $defaultsort);
}
if ($defaultsortdir !== 0) {
    $url->param('defaultsortdir', $defaultsortdir);
}
if ($cancel !== 0) {
    $url->param('cancel', $cancel);
}
if ($action !== '') {
    $url->param('action', $action);
}

if ($id) {

<     $url->param('id', $id);
<     $PAGE->set_url($url);
<     if (! $cm = get_coursemodule_from_id('data', $id)) {
<         print_error('invalidcoursemodule');
<     }
<     if (! $course = $DB->get_record('course', array('id'=>$cm->course))) {
<         print_error('coursemisconf');
<     }
<     if (! $data = $DB->get_record('data', array('id'=>$cm->instance))) {
<         print_error('invalidcoursemodule');



>     list($course, $cm) = get_course_and_cm_from_cmid($id, manager::MODULE);
>     $manager = manager::create_from_coursemodule($cm);
>     $url->param('id', $cm->id);
> } else {   // We must have $d.
>     $instance = $DB->get_record('data', ['id' => $d], '*', MUST_EXIST);
>     $manager = manager::create_from_instance($instance);
>     $cm = $manager->get_coursemodule();
>     $course = get_course($cm->course);
>     $url->param('d', $d);


    }


< } else {
<     $url->param('d', $d);


    $PAGE->set_url($url);

<     if (! $data = $DB->get_record('data', array('id'=>$d))) {
<         print_error('invalidid', 'data');
<     }
<     if (! $course = $DB->get_record('course', array('id'=>$data->course))) {
<         print_error('invalidcoursemodule');
<     }
<     if (! $cm = get_coursemodule_from_instance('data', $data->id, $course->id)) {
<         print_error('invalidcoursemodule');
<     }
< }



> $data = $manager->get_instance();
> $context = $manager->get_context();



require_login($course, true, $cm);

< 
< $context = context_module::instance($cm->id);


require_capability('mod/data:managetemplates', $context);


< $formimportzip = new data_import_preset_zip_form();
< $formimportzip->set_data(array('d' => $data->id));
< 


$actionbar = new \mod_data\output\action_bar($data->id, $PAGE->url);


< $PAGE->set_title(get_string('course') . ': ' . $course->fullname);



> $PAGE->add_body_class('mediumwidth');


$PAGE->set_heading($course->fullname);
$PAGE->activityheader->disable();

// Fill in missing properties needed for updating of instance.
$data->course     = $cm->course;
$data->cmidnumber = $cm->idnumber;
$data->instance   = $cm->instance;

/************************************
 *        Data Processing           *
 ***********************************/

< $renderer = $PAGE->get_renderer('mod_data');
< 
< if ($formimportzip->is_cancelled()) {
<     redirect(new moodle_url('/mod/data/field.php', ['d' => $data->id]));
< } else if ($formdata = $formimportzip->get_data()) {
<     $fieldactionbar = $actionbar->get_fields_action_bar();
<     data_print_header($course, $cm, $data, false, $fieldactionbar);
<     echo $OUTPUT->heading(get_string('importpreset', 'data'), 2, 'mb-4');
<     $file = new stdClass;
<     $file->name = $formimportzip->get_new_filename('importfile');
<     $file->path = $formimportzip->save_temp_file('importfile');
<     $importer = new data_preset_upload_importer($course, $cm, $data, $file->path);
<     echo $renderer->import_setting_mappings($data, $importer);
<     echo $OUTPUT->footer();
<     exit(0);
< }



> $renderer = $manager->get_renderer();



if ($action == 'finishimport' && confirm_sesskey()) {

<     data_print_header($course, $cm, $data, false);


    $overwritesettings = optional_param('overwritesettings', false, PARAM_BOOL);

< 
<     if (!$fullname) {
<         $presetdir = $CFG->tempdir . '/forms/' . required_param('directory', PARAM_FILE);
<         if (!file_exists($presetdir) || !is_dir($presetdir)) {
<             throw new moodle_exception('cannotimport', 'error');
<         }
<         $importer = new data_preset_upload_importer($course, $cm, $data, $presetdir);
<     } else {
<         $importer = new data_preset_existing_importer($course, $cm, $data, $fullname);
<     }
< 
<     $importer->import($overwritesettings);
<     $strimportsuccess = get_string('importsuccess', 'data');
<     $straddentries = get_string('addentries', 'data');
<     $strtodatabase = get_string('todatabase', 'data');
< 
<     if (!$DB->get_records('data_records', array('dataid' => $data->id))) {
<         echo $OUTPUT->notification("$strimportsuccess <a href='edit.php?d=$data->id'>$straddentries</a> $strtodatabase",
<             'notifysuccess');
<     } else {
<         echo $OUTPUT->notification("$strimportsuccess", 'notifysuccess');
<     }
< 
<     echo $OUTPUT->continue_button(new moodle_url('/mod/data/field.php', ['d' => $data->id]));
<     echo $OUTPUT->footer();
<     exit;



>     $importer = preset_importer::create_from_parameters($manager);
>     $importer->finish_import_process($overwritesettings, $data);


}

switch ($mode) {

    case 'add':    ///add a new field
        if (confirm_sesskey() and $fieldinput = data_submitted()){

            //$fieldinput->name = data_clean_field_name($fieldinput->name);

        /// Only store this new field if it doesn't already exist.
            if (($fieldinput->name == '') or data_fieldname_exists($fieldinput->name, $data->id)) {

                $displaynoticebad = get_string('invalidfieldname','data');

            } else {

            /// Check for arrays and convert to a comma-delimited string
                data_convert_arrays_to_strings($fieldinput);

            /// Create a field object to collect and store the data safely
                $type = required_param('type', PARAM_FILE);
                $field = data_get_field_new($type, $data);

                if (!empty($validationerrors = $field->validate($fieldinput))) {
                    $displaynoticebad = html_writer::alist($validationerrors);
                    $mode = 'new';
                    $newtype = $type;
                    break;
                }

                $field->define_field($fieldinput);
                $field->insert_field();

            /// Update some templates
                data_append_new_field_to_templates($data, $fieldinput->name);

                $displaynoticegood = get_string('fieldadded','data');
            }
        }
        break;


    case 'update':    ///update a field
        if (confirm_sesskey() and $fieldinput = data_submitted()){

            //$fieldinput->name = data_clean_field_name($fieldinput->name);

            if (($fieldinput->name == '') or data_fieldname_exists($fieldinput->name, $data->id, $fieldinput->fid)) {

                $displaynoticebad = get_string('invalidfieldname','data');

            } else {
            /// Check for arrays and convert to a comma-delimited string
                data_convert_arrays_to_strings($fieldinput);

            /// Create a field object to collect and store the data safely
                $field = data_get_field_from_id($fid, $data);
                if (!empty($validationerrors = $field->validate($fieldinput))) {
                    $displaynoticebad = html_writer::alist($validationerrors);
                    $mode = 'display';
                    break;
                }
                $oldfieldname = $field->field->name;

                $field->field->name = $fieldinput->name;
                $field->field->description = $fieldinput->description;
                $field->field->required = !empty($fieldinput->required) ? 1 : 0;

                for ($i=1; $i<=10; $i++) {
                    if (isset($fieldinput->{'param'.$i})) {
                        $field->field->{'param'.$i} = $fieldinput->{'param'.$i};
                    } else {
                        $field->field->{'param'.$i} = '';
                    }
                }

                $field->update_field();

            /// Update the templates.
                data_replace_field_in_templates($data, $oldfieldname, $field->field->name);

                $displaynoticegood = get_string('fieldupdated','data');
            }
        }
        break;


    case 'delete':    // Delete a field
        if (confirm_sesskey()){

            if ($confirm = optional_param('confirm', 0, PARAM_INT)) {


                // Delete the field completely
                if ($field = data_get_field_from_id($fid, $data)) {
                    $field->delete_field();

                    // Update the templates.
                    data_replace_field_in_templates($data, $field->field->name, '');

                    // Update the default sort field
                    if ($fid == $data->defaultsort) {
                        $rec = new stdClass();
                        $rec->id = $data->id;
                        $rec->defaultsort = 0;
                        $rec->defaultsortdir = 0;
                        $DB->update_record('data', $rec);
                    }

                    $displaynoticegood = get_string('fielddeleted', 'data');
                }

            } else {

< 



>                 $titleparts = [
>                     get_string('deletefield', 'data'),
>                     format_string($data->name),
>                     format_string($course->fullname),
>                 ];
>                 $PAGE->set_title(implode(moodle_page::TITLE_SEPARATOR, $titleparts));


                data_print_header($course,$cm,$data, false);
                echo $OUTPUT->heading(get_string('deletefield', 'data'), 2, 'mb-4');

                // Print confirmation message.
                $field = data_get_field_from_id($fid, $data);

                if ($field->type === 'unknown') {
                    $fieldtypename = get_string('unknown', 'data');
                } else {
                    $fieldtypename = $field->name();
                }
                echo $OUTPUT->confirm('<strong>'.$fieldtypename.': '.$field->field->name.'</strong><br /><br />'.
                            get_string('confirmdeletefield', 'data'),
                            'field.php?d='.$data->id.'&mode=delete&fid='.$fid.'&confirm=1',

<                             'field.php?d='.$data->id);



>                         'field.php?d=' . $data->id,
>                         ['type' => single_button::BUTTON_DANGER]);



                echo $OUTPUT->footer();
                exit;
            }
        }
        break;


    case 'sort':    // Set the default sort parameters
        if (confirm_sesskey()) {
            $rec = new stdClass();
            $rec->id = $data->id;
            $rec->defaultsort = $defaultsort;
            $rec->defaultsortdir = $defaultsortdir;

            $DB->update_record('data', $rec);
            redirect($CFG->wwwroot.'/mod/data/field.php?d='.$data->id, get_string('changessaved'), 2);
            exit;
        }
        break;


<     case 'import':
<         $PAGE->navbar->add(get_string('importpreset', 'data'));
<         $fieldactionbar = $actionbar->get_fields_action_bar();
<         data_print_header($course, $cm, $data, false, $fieldactionbar);
< 
<         echo $OUTPUT->heading(get_string('importpreset', 'data'), 2, 'mb-4');
<         echo $formimportzip->display();
<         echo $OUTPUT->footer();
<         exit;
< 


    case 'usepreset':

<         $PAGE->navbar->add(get_string('usestandard', 'data'));
<         $fieldactionbar = $actionbar->get_fields_action_bar();
<         data_print_header($course, $cm, $data, false, $fieldactionbar);
< 
<         if ($action === 'select') {
<             if (!empty($fullname)) {
<                 echo $OUTPUT->heading(get_string('usestandard', 'data'), 2, 'mb-4');
<                 $importer = new data_preset_existing_importer($course, $cm, $data, $fullname);
<                 echo $renderer->import_setting_mappings($data, $importer);
<             }



>         $importer = preset_importer::create_from_parameters($manager);
>         if (!$importer->needs_mapping() || $action == 'notmapping') {
>             $backurl = new moodle_url('/mod/data/field.php', ['id' => $cm->id]);
>             if ($importer->import(false)) {
>                 notification::success(get_string('importsuccess', 'mod_data'));


        } else {

<             echo $OUTPUT->heading(get_string('presets', 'data'), 2, 'mb-4');
<             $presets = data_get_available_presets($context);
<             $presetstable = new \mod_data\output\presets($data->id, $presets,
<                 new \moodle_url('/mod/data/field.php'));
<             echo $renderer->render_presets($presetstable, false);



>                 notification::error(get_string('cannotapplypreset', 'mod_data'));
>             }
>             redirect($backurl);


        }

>         $PAGE->navbar->add(get_string('usestandard', 'data'));
        echo $OUTPUT->footer();
>         $fieldactionbar = $actionbar->get_fields_mapping_action_bar();
        exit;
>         data_print_header($course, $cm, $data, false, $fieldactionbar);

>         $importer = new preset_existing_importer($manager, $fullname);
    default:
>         echo $renderer->importing_preset($data, $importer);


        break;
}



/// Print the browsing interface

///get the list of possible fields (plugins)
$plugins = core_component::get_plugin_list('datafield');
$menufield = array();

foreach ($plugins as $plugin=>$fulldir){
    if (!is_dir($fulldir)) {
        continue;
    }
    $menufield[$plugin] = get_string('pluginname', 'datafield_'.$plugin);    //get from language files
}
asort($menufield);    //sort in alphabetical order
$PAGE->force_settings_menu(true);

$PAGE->set_pagetype('mod-data-field-' . $newtype);

> $titleparts = [
if (($mode == 'new') && (!empty($newtype))) { // Adding a new field.
>     format_string($data->name),
    data_print_header($course, $cm, $data,'fields');
>     format_string($course->fullname),
    echo $OUTPUT->heading(get_string('newfield', 'data'));
> ];




>     array_unshift($titleparts, get_string('newfield', 'data'));
    $field = data_get_field_new($newtype, $data);
>     $PAGE->set_title(implode(moodle_page::TITLE_SEPARATOR, $titleparts));


    $field->display_edit_field();

} else if ($mode == 'display' && confirm_sesskey()) { /// Display/edit existing field

>     array_unshift($titleparts, get_string('editfield', 'data'));
    data_print_header($course, $cm, $data,'fields');
>     $PAGE->set_title(implode(moodle_page::TITLE_SEPARATOR, $titleparts));


    echo $OUTPUT->heading(get_string('editfield', 'data'));

    $field = data_get_field_from_id($fid, $data);
    $field->display_edit_field();

} else {                                              /// Display the main listing of all fields

<     $fieldactionbar = $actionbar->get_fields_action_bar(true, true, true);



>     array_unshift($titleparts, get_string('managefields', 'data'));
>     $PAGE->set_title(implode(moodle_page::TITLE_SEPARATOR, $titleparts));
>     $hasfields = $manager->has_fields();
>     // Check if it is an empty database with no fields.
>     if (!$hasfields) {
>         echo $OUTPUT->header();
>         echo $renderer->render_fields_zero_state($manager);
>         echo $OUTPUT->footer();
>         // Don't check the rest of the options. There is no field, there is nothing else to work with.
>         exit;
>     }
>     $fieldactionbar = $actionbar->get_fields_action_bar(true);


    data_print_header($course, $cm, $data, 'fields', $fieldactionbar);

<     echo $OUTPUT->heading(get_string('managefields', 'data'), 2, 'mb-4');
< 
<     if (!$DB->record_exists('data_fields', array('dataid'=>$data->id))) {
<         echo $OUTPUT->notification(get_string('nofieldindatabase','data'));  // nothing in database
<         echo $OUTPUT->notification(get_string('pleaseaddsome','data', 'preset.php?id='.$cm->id));      // link to presets
< 
<     } else {    //else print quiz style list of fields




>     echo $OUTPUT->box_start();
        $table = new html_table();
>     echo get_string('fieldshelp', 'data');
        $table->head = array(
>     echo $OUTPUT->box_end();
            get_string('fieldname', 'data'),
>     echo $OUTPUT->box_start('d-flex flex-row-reverse');
            get_string('type', 'data'),
>     echo $OUTPUT->render($actionbar->get_create_fields(true));
            get_string('required', 'data'),
>     echo $OUTPUT->box_end();



<         $table->head = array(



>     $table->head = [



<             get_string('action', 'data'),
<         );
<         $table->align = array('left', 'left', 'left', 'left');
<         $table->wrap = array(false,false,false,false);



>         '&nbsp;',
>     ];
>     $table->align = ['left', 'left', 'left', 'left'];
>     $table->wrap = [false,false,false,false];
>     $table->responsive = false;




<         if ($fff = $DB->get_records('data_fields', array('dataid'=>$data->id),'id')){



>     $fieldrecords = $manager->get_field_records();


            $missingfieldtypes = [];

<             foreach ($fff as $ff) {



>     foreach ($fieldrecords as $fieldrecord) {




<                 $field = data_get_field($ff, $data);



>         $field = data_get_field($fieldrecord, $data);



                $baseurl = new moodle_url('/mod/data/field.php', array(
                    'd'         => $data->id,
                    'fid'       => $field->field->id,
                    'sesskey'   => sesskey(),
                ));

                $displayurl = new moodle_url($baseurl, array(
                    'mode'      => 'display',
                ));

                $deleteurl = new moodle_url($baseurl, array(
                    'mode'      => 'delete',
                ));


>         $actionmenu = new action_menu();
                // It display a notification when the field type does not exist.
>         $actionmenu->set_kebab_trigger();
                $deletelink = html_writer::link($deleteurl, $OUTPUT->pix_icon('t/delete', get_string('delete')));
>         $actionmenu->set_action_label(get_string('actions'));
                $editlink = html_writer::link($displayurl, $OUTPUT->pix_icon('t/edit', get_string('edit')));
>         $actionmenu->set_additional_classes('fields-actions');
                if ($field->type === 'unknown') {
> 



<                 $deletelink = html_writer::link($deleteurl, $OUTPUT->pix_icon('t/delete', get_string('delete')));
<                 $editlink = html_writer::link($displayurl, $OUTPUT->pix_icon('t/edit', get_string('edit')));



<                     $fieldnamedata = $field->field->name;



<                     $fieldlinkdata = $deletelink;


                } else {

<                     $fieldnamedata = html_writer::link($displayurl, $field->field->name);


                    $fieltypedata = $field->image() . '&nbsp;' . $field->name();

<                     $fieldlinkdata = $editlink . '&nbsp;' . $deletelink;



>             // Edit icon, only displayed when the field type is known.
>             $actionmenu->add(new action_menu_link_secondary(
>                 $displayurl,
>                 null,
>                 get_string('edit'),
>             ));


                }


>         // Delete.
                $table->data[] = [
>         $actionmenu->add(new action_menu_link_secondary(
                    $fieldnamedata,
>             $deleteurl,
                    $fieltypedata,
>             null,
                    $field->field->required ? get_string('yes') : get_string('no'),
>             get_string('delete'),
                    shorten_text($field->field->description, 30),
>         ));
                    $fieldlinkdata
>         $actionmenutemplate = $actionmenu->export_for_template($OUTPUT);
                ];
> 



<                     $fieldnamedata,



>             $field->field->name,



<                     $fieldlinkdata



>             $OUTPUT->render_from_template('core/action_menu', $actionmenutemplate)



<             }



> 


            }
        }
        echo html_writer::table($table);

<     }



    echo '<div class="sortdefault">';
    echo '<form id="sortdefault" action="'.$CFG->wwwroot.'/mod/data/field.php" method="get">';
    echo '<div>';
    echo '<input type="hidden" name="d" value="'.$data->id.'" />';
    echo '<input type="hidden" name="mode" value="sort" />';
    echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
    echo '<label for="defaultsort">'.get_string('defaultsortfield','data').'</label>';
    echo '<select id="defaultsort" name="defaultsort" class="custom-select">';
    if ($fields = $DB->get_records('data_fields', array('dataid'=>$data->id))) {
        echo '<optgroup label="'.get_string('fields', 'data').'">';
        foreach ($fields as $field) {
            if ($data->defaultsort == $field->id) {
                echo '<option value="'.$field->id.'" selected="selected">'.$field->name.'</option>';
            } else {
                echo '<option value="'.$field->id.'">'.$field->name.'</option>';
            }
        }
        echo '</optgroup>';
    }
    $options = array();
    $options[DATA_TIMEADDED]    = get_string('timeadded', 'data');
// TODO: we will need to change defaultsort db to unsinged to make these work in 2.0
/*        $options[DATA_TIMEMODIFIED] = get_string('timemodified', 'data');
    $options[DATA_FIRSTNAME]    = get_string('authorfirstname', 'data');
    $options[DATA_LASTNAME]     = get_string('authorlastname', 'data');
    if ($data->approval and has_capability('mod/data:approve', $context)) {
        $options[DATA_APPROVED] = get_string('approved', 'data');
    }*/
    echo '<optgroup label="'.get_string('other', 'data').'">';
    foreach ($options as $key => $name) {
        if ($data->defaultsort == $key) {
            echo '<option value="'.$key.'" selected="selected">'.$name.'</option>';
        } else {
            echo '<option value="'.$key.'">'.$name.'</option>';
        }
    }
    echo '</optgroup>';
    echo '</select>';

    $options = array(0 => get_string('ascending', 'data'),
                     1 => get_string('descending', 'data'));
    echo html_writer::label(get_string('sortby'), 'menudefaultsortdir', false, array('class' => 'accesshide'));
    echo html_writer::select($options, 'defaultsortdir', $data->defaultsortdir, false, array('class' => 'custom-select'));
    echo '<input type="submit" class="btn btn-secondary ml-1" value="'.get_string('save', 'data').'" />';
    echo '</div>';
    echo '</form>';

<     echo '</div>';




>     // Add a sticky footer.
}
>     echo $renderer->render_fields_footer($manager);

> 
/// Finish the page
>     echo '</div>';


echo $OUTPUT->footer();

<