<?php
///////////////////////////////////////////////////////////////////////////////
//    avatar_templ_edit.class.php
//                                               by Fumi.Iseki
//

if (!defined('CMS_MODULE_PATH')) exit();

require_once(realpath(CMS_MODULE_PATH.'/include/modlos.func.php'));
require_once(realpath(CMS_MODULE_PATH.'/admin/lib/modlos_avatar_templ_form.php'));


class  AvatarTemplEdit
{
    var $db_data     = array();

    var $course_id   = 0;
    var $isPost      = false;

    var $return_url;
    var $add_url;
    var $edit_url;
    var $delete_url;

    var $url_params;
    var $hasPermit   = false;

    var $mform       = null;

    var $hasError = false;
    var $errorMsg = array();


    function  __construct($course_id) 
    {
        $this->course_id = $course_id;
        $this->hasPermit = hasModlosPermit($this->course_id);
        if (!$this->hasPermit) {
            $this->hasError = true;
            $this->errorMsg[] = get_string('modlos_access_forbidden', 'block_modlos');
            return;
        }
        //
        $this->url_params = '?course='.$course_id;
        $this->return_url = CMS_MODULE_URL.'/admin/actions/avatar_templ.php'.$this->url_params;
        $this->add_url    = CMS_MODULE_URL.'/admin/actions/avatar_templ_add.php'.$this->url_params;
        $this->edit_url   = CMS_MODULE_URL.'/admin/actions/avatar_templ_edit.php'.$this->url_params.  '&amp;templid=';
        $this->delete_url = CMS_MODULE_URL.'/admin/actions/avatar_templ_delete.php'.$this->url_params.'&amp;templid=';
    }


    function  execute()
    {
        global $CFG, $DB, $USER;

        if (!$this->hasPermit) return false;

        // Cancel
        $cancel = optional_param('cancel', null, PARAM_TEXT);
        if ($cancel) redirect($this->return_url, 'Please wait ...', 0);

        $templ_id = required_param('templid', PARAM_INT);    // Primary Key
        $template = $DB->get_record('modlos_template_avatars', array('id'=>$templ_id));
        if (!$template) redirect($this->return_url, get_string('modlos_templ_uuid_mis', 'block_modlos'), 2);

        //
        // POST
        if ($formdata = data_submitted()) { 
            //
            if (!confirm_sesskey()) {
                $this->hasError = true;
                $this->errorMsg[] = get_string('modlos_sesskey_error', 'block_modlos');
                return false;
            }

            $title  = trim(required_param('title', PARAM_TEXT));
            $uuid   = trim(required_param('uuid',  PARAM_TEXT));
            $order  = optional_param('order', '0', PARAM_INT);
            $status = optional_param('valid', '0', PARAM_INT);

            // Check
            if ($title==null) {
                $this->hasError = true;
                $this->errorMsg[] = get_string('modlos_templ_title_invalid', 'block_modlos');
            }
            $info = opensim_get_avatar_info($uuid, false);
            if ($info==null) {
                $this->hasError = true;
                $this->errorMsg[] = get_string('modlos_templ_uuid_invalid', 'block_modlos');
            }
            else if ($info['fullname']==null or $info['hgURI']!=null) {
                $this->hasError = true;
                $this->errorMsg[] = get_string('modlos_templ_uuid_mis', 'block_modlos');
            }
            //
            if ($uuid!=$template->uuid) {
                $ret = $DB->get_record('modlos_template_avatars', array('uuid'=>$uuid));
                if ($ret) {
                    $this->hasError = true;
                    $this->errorMsg[] = get_string('modlos_templ_uuid_dup', 'block_modlos');
                }
            }
            if ($this->hasError) return false;
            //
            if ($order<=0) {
                $num = 0;
                $query_str = 'SELECT max(num) FROM '.$CFG->prefix.'modlos_template_avatars';
                $obj_nums = $DB->get_records_sql($query_str);
                foreach ($obj_nums as $obj_num) {
                    $num = $obj_num->{'max(num)'};
                    break;
                }
                $order = $num + 1;
            }

            // Editor
            $explain = required_param_array('explain', PARAM_RAW);

            $update = array();
            $update['id']        = $template->id;    // $templ_id
            $update['num']       = $order;
            $update['title']     = $title;
            $update['uuid']      = $uuid;
            $update['text']      = htmlspecialchars($explain['text']); // htmlspecialchars_decode
            $update['format']    = $explain['format'];
            $update['fileid']    = 0;
            $update['filename']  = '';
            $update['itemid']    = 0;
            $update['status']    = $status;
            $update['timestamp'] = time();

            // File Manager. see lib/filelib.php
            $context_id = jbxl_get_block_id('modlos');
            $picid = file_get_submitted_draft_itemid('picfile');
            file_save_draft_area_files($picid, $context_id, 'block_modlos', 'templ_picture', $picid, array('maxfiles'=>1));

            $condition = "itemid=$picid AND contextid=$context_id AND component='block_modlos' AND filearea='templ_picture' AND ".
                         "filename!='\\.' AND filesize!='0' AND source!='NULL'";
            $query_str = 'SELECT id,filename FROM '.$CFG->prefix.'files WHERE '.$condition;

            if ($files = $DB->get_records_sql($query_str)) {
                foreach($files as $file) {
                    $update['fileid']   = $file->id;
                    $update['filename'] = $file->filename;
                    break;
                }
            }
            $update['itemid'] = $picid;

            // insert to DB
            $ret = $DB->update_record('modlos_template_avatars', $update);
            if (!$ret) {
                $this->hasError = true;
                $this->errorMsg[] = get_string('modlos_templ_db_fail', 'block_modlos').' (update)';
                return false;
            }

            // for Display
            $this->db_data             = $update;
            $this->db_data['html']     = $explain['text'];
            $this->db_data['fullname'] = '';
            $this->db_data['url']      = '';

            $name = opensim_get_avatar_name($update['uuid'], false);
            if ($name) $this->db_data['fullname'] = $name['fullname'];

            $usercontext = context_user::instance($USER->id);
            if ($update['filename']) {
                $path = '@@PLUGINFILE@@/'.$update['filename'];
                $this->db_data['url'] = file_rewrite_pluginfile_urls($path, 'pluginfile.php', $usercontext->id, 'block_modlos', 'templ_picture', $update['itemid']);
            }

            $this->isPost = true;
        }

        //
        // GET
        else {
            $data = array();
            $data['templid'] = $template->id;
            $data['order']   = $template->num;
            $data['title']   = $template->title;
            $data['uuid']    = $template->uuid;
            $data['explain'] = array();
            $data['explain']['text']   = htmlspecialchars_decode($template->text);
            $data['explain']['format'] = $template->format;
            $data['picfile'] = $template->itemid;
            $data['valid']   = $template->status;

            $this->mform = new modlos_avatar_templ_form();
            $this->mform->set_data($data);
        }

        return true;
    }


    function  print_page() 
    {
        global $CFG;

        if (!$this->isPost and $this->mform==null) {
            $this->mform = new modlos_avatar_templ_form();    // Error
        }

        $grid_name  = $CFG->modlos_grid_name;

        $avatar     = $this->db_data;
        $mform      = $this->mform;
        $isPost     = $this->isPost;

        $url_params = $this->url_params;
        $return_url = $this->return_url;

        $avatar_templ_ttl = get_string('modlos_templ_ttl',      'block_modlos');
        $edit_avatar      = get_string('modlos_templ_edit_ttl', 'block_modlos');
        $edit_success     = get_string('modlos_templ_edit_ok',  'block_modlos');
        $edit_fail        = get_string('modlos_templ_edit_fail','block_modlos');
        $invalid_ttl      = get_string('modlos_invalid',        'block_modlos');
        $modlos_return    = get_string('modlos_return_ttl',     'block_modlos');
        $modlos_valid     = get_string('modlos_valid_ttl',      'block_modlos');
        $modlos_invalid   = get_string('modlos_invalid_ttl',    'block_modlos');

        include(CMS_MODULE_PATH.'/admin/html/avatar_templ_edit.html');
    }
}