<?php

/*
 +-----------------------------------------------------------------------+
 | Vacation Module for RoundCube                                         |
 |                                                                       |
 | Copyright (C) 2011 André Rodier <andre.rodier@gmail.com>              |
 | Licensed under the GNU GPL                                            |
 +-----------------------------------------------------------------------+
 */

define ('PLUGIN_SUCCESS', 0);
define ('PLUGIN_ERROR_DEFAULT', 1);
define ('PLUGIN_ERROR_CONNECT', 2);
define ('PLUGIN_ERROR_PROCESS', 3);

class vacation_sieve extends rcube_plugin
{
    public $task = 'settings';
    private $app;
    private $obj;
    private $config;

    /*
     * Initializes the plugin.
     */
    public function init()
    {
        try
        {
            $this->log_debug('Initialising');

            // use jQuery for popup window
            $this->require_plugin('jqueryui');

            $this->app = rcmail::get_instance();
            $this->add_texts('localization/', true);

            $this->app->output->add_label('vacation');
            $this->register_action('plugin.vacation_sieve', array($this, 'vacation_sieve_init'));
            $this->register_action('plugin.vacation_sieve-save', array($this, 'vacation_sieve_save'));
            $this->include_script('vacation_sieve.js');
            // Load the jQuery UI multiselect widget and i18n
            $this->include_script('js/jquery-ui-multiselect-widget/jquery.multiselect.min.js');
            $lang_s = substr($_SESSION['language'], 0, 2);
            if (file_exists($this->home . "/js/jquery-ui-multiselect-widget/i18n/jquery.multiselect.$lang_s.js")) {
                $this->include_script("js/jquery-ui-multiselect-widget/i18n/jquery.multiselect.$lang_s.js");
            }
            $this->include_stylesheet('styles.css');

            $src = $this->app->config->get('skin_path') . '/vacation_sieve.css';
            if (file_exists($this->home . '/' . $src)) {
                $this->include_stylesheet($src);
            }
            $this->include_stylesheet('js/jquery-ui-multiselect-widget/jquery.multiselect.css');

            # Load default config, and merge with users' settings
            $this->load_config('config-default.inc.php');
            $this->load_config('config.inc.php');

            $this->config = $this->app->config->get('vacation_sieve');


            require $this->home . '/model.php';
            
            $this->obj = new model();
            if (!empty($this->config['vacation_subject'])) {
                $this->obj->vacation_subject = $this->config['vacation_subject'];
            }
            if (!empty($this->config['vacation_message'])) {
                $this->obj->vacation_message = $this->config['vacation_message'];
            }


            $this->log_debug('Initialised');
        }
        catch ( Exception $exc )
        {
            $this->log_error('Fail to initialise: '.$exc->getMessage());
        }
    }

    /*
     * Plugin initialization function.
     */
    public function vacation_sieve_init()
    {
        try
        {
            $this->log_debug('Loading data');
            $this->read_data();

            $this->register_handler('plugin.body', array($this, 'vacation_sieve_form'));
            $this->app->output->set_pagetitle($this->gettext('vacation'));
            $this->app->output->send('plugin');
        }
        catch (Exception $exc)
        {
            $this->log_error('Fail to Loaded: '.$exc->getMessage());
        }
    }

    /*
     * Reads plugin data.
     */
    public function read_data()
    {
        $this->log_debug('Read data');
        # Open the config file, and save the script
        $transferParams = $this->config['transfer'];
        $path = $transferParams['path'];
        $userData = ($this->app->user->data);
        $userName = $userData['username'];

        list($logon,$domain) = preg_split('/@/', $userName);

        # callbacks can be used to transform logon names
        if ( isset($this->config['logon_transform']) ) {
            $pattern = $this->config['logon_transform'][0];
            $replace = $this->config['logon_transform'][1];
            $logon = preg_replace($pattern, $replace, $logon);
        }

        $path = str_replace('<domain>', $domain, $path);
        $path = str_replace('<logon>', $logon, $path);
        $transferParams['path'] = $path;

        # load the transfer class 
        require 'transfer/factory.php';
        $mode = $transferParams['mode'];
        $transfer = GetTransferClass($mode, $transferParams);

        $script = $transfer->LoadScript($path);
        
        if ( !$script || $script === '' )
        {
            $msg = sprintf("Cannot load the script from '%s'", $path);
            $this->log_error($msg);
        }
        else
        {
            require 'scriptmanager.php';
            $scriptManager = new ScriptManager();
            mb_internal_encoding('UTF-8'); /* */
            $script = preg_replace('/.*STARTPARAMS(.*)ENDPARAMS.*/s', '${1}', $script);
            $params = $scriptManager->LoadParamsFromScript($script);

            $format = $this->app->config->get('date_format');
            if(isset($params['enable'])){ $this->obj->set_vacation_enable($params['enable']); }
            if(isset($params['start']))
            {
                $startdate = date_create_from_format($format, $params['start']);
                if($startdate) { $this->obj->set_vacation_start(date_timestamp_get($startdate)); }
            }
            if(isset($params['starttime'])){ $this->obj->set_vacation_starttime($params['starttime']); }
            if(isset($params['end']))
            {
                $enddate = date_create_from_format($format, $params['end']);
                if($enddate) { $this->obj->set_vacation_end(date_timestamp_get($enddate)); }
            }
            if(isset($params['endtime'])){ $this->obj->set_vacation_endtime($params['endtime']); }
            if(isset($params['every'])){ $this->obj->set_every($params['every']); }

            if(isset($params['subject'])){ $this->obj->set_vacation_subject($params['subject']); }
            if(isset($params['appendSubject'])){ $this->obj->set_append_subject($params['appendSubject']); }

            if(isset($params['addresses'])){ $this->obj->set_addressed_to($params['addresses']); }
            if(isset($params['sendFrom'])){ $this->obj->set_send_from($params['sendFrom']); }
            if(isset($params['message'])){ $this->obj->set_vacation_message($params['message']); }
        }

        return true;
    }

    /*
     * Plugin save function.
     */
    public function vacation_sieve_save()
    {
        try
        {
            $this->log_debug('Saving data');
            $this->write_data();

            $this->register_handler('plugin.body', array($this, 'vacation_sieve_form'));
            $this->app->output->set_pagetitle($this->gettext('vacation'));
            rcmail_overwrite_action('plugin.vacation_sieve');
            $this->app->output->send('plugin');
			$this->api->output->command('display_message', $this->gettext('filtersaved'), 'confirmation');
        }
        catch ( Exception $exc)
        {
            $this->log_error('Fail to save: '.$exc->getMessage());
			$this->api->output->command('display_message', $this->gettext('filtersaveerror'), 'error');
        }
    }

    /*
     * Writes plugin data.
     */
    public function write_data()
    {
        $this->log_debug('Write data');
        $params = array();
        $tmp = get_input_value('_vacation_enable', RCUBE_INPUT_POST);
        $params['enable'] = isset($tmp) ? true : false;
        $params['start'] = get_input_value('_vacation_start', RCUBE_INPUT_POST);
        $params['starttime'] = get_input_value('_vacation_starttime', RCUBE_INPUT_POST);
        $params['end'] = get_input_value('_vacation_end', RCUBE_INPUT_POST);
        $params['endtime'] = get_input_value('_vacation_endtime', RCUBE_INPUT_POST);
        $params['every'] = intval(get_input_value('_every', RCUBE_INPUT_POST));

        $params['subject'] = get_input_value('_vacation_subject', RCUBE_INPUT_POST);
        $tmp = get_input_value('_append_subject', RCUBE_INPUT_POST);
        $params['appendSubject'] = isset($tmp) ? true : false;
        unset($tmp);

        $params['addresses'] = get_input_value('_addressed_to', RCUBE_INPUT_POST, true);
        $params['sendFrom'] = get_input_value('_send_from', RCUBE_INPUT_POST, true);
        $params['message'] = get_input_value('_vacation_message', RCUBE_INPUT_POST, true);

        require 'scriptmanager.php';
        $scriptManager = new ScriptManager();
        $script = $scriptManager->BuildScriptFromParams($params);

        # Open the config file, and save the script
        $transferParams = $this->config['transfer'];
        $path = $transferParams['path'];
        $userData = ($this->app->user->data);
        $userName = $userData['alias'];

        if ( empty($userName) )
            $userName = $_SESSION['username'];
        list($logon,$domain) = preg_split('/@/', $userName);

        # callbacks can be used to transform logon names
        if ( isset($this->config['logon_transform']) ) {
            $pattern = $this->config['logon_transform'][0];
            $replace = $this->config['logon_transform'][1];
            $logon = preg_replace($pattern, $replace, $logon);
        }

        $path = str_replace('<domain>', $domain, $path);
        $path = str_replace('<logon>', $logon, $path);
        $transferParams['path'] = $path;
        $transferParams['enable'] = $params['enable'];

        # Update the model
        $format = $this->app->config->get('date_format');  
        $this->obj->set_vacation_enable($params['enable']);
        $startdate = date_create_from_format($format, $params['start']);
        if($startdate) { $this->obj->set_vacation_start(date_timestamp_get($startdate)); }
        $this->obj->set_vacation_starttime($params['starttime']);
        $enddate = date_create_from_format($format, $params['end']);
        if($enddate) { $this->obj->set_vacation_end(date_timestamp_get($enddate)); }
        $this->obj->set_vacation_endtime($params['endtime']);
        $this->obj->set_every($params['every']);

        $this->obj->set_vacation_subject($params['subject']);
        $this->obj->set_append_subject($params['appendSubject']);

        $this->obj->set_addressed_to($params['addresses']);
        $this->obj->set_send_from($params['sendFrom']);
        $this->obj->set_vacation_message($params['message']);

        # load the transfer class 
        require 'transfer/factory.php';
        $mode = $transferParams['mode'];
        $transfer = GetTransferClass($mode, $transferParams);

        $success = $transfer->SaveScript($path,$script);
        
        if ( !$success )
        {
            $msg = sprintf("Cannot save the script in '%s' (%d):\n", $path, $success);
            $msg .= '  Error: ' . $transfer->LastError();
            $this->log_error($msg);
        }
    }

    /*
     * Plugin UI form function.
     */
    public function vacation_sieve_form()
    {
        try
        {
            $table = new html_table(array('cols' => 2, 'class' => 'propform'));

            $format = $this->app->config->get('date_format');

            # Options
            $table->add(array('colspan' => 2, 'class' => 'section-first'),Q($this->gettext('options')));
            $table->add_row();
            $field_id = 'vacation_enable';
            $input_vacationenable = new html_checkbox(array('name' => '_vacation_enable', 'id' => $field_id, 'value' => 1));
            $table->add('title', html::label($field_id, Q($this->gettext('vacationenable'))));
            $table->add(null, $input_vacationenable->show($this->obj->is_vacation_enable() ? 1 : 0));

            $field_id = 'vacation_start';
            $input_vacationstart = new html_inputfield(array('name' => '_vacation_start', 'id' => $field_id, 'size' => 10));
            $table->add('title', html::label($field_id, Q($this->gettext('period'))));
            $vacStart = $this->obj->get_vacation_start();

            $hour_text = array();
            $hour_value = array();
            $wholeDay = Q($this->gettext('wholeday'));
            $hour_value[$wholeDay] = '';
            $hour_text[$wholeDay] = $wholeDay;

            $minHour = $this->config['working_hours'][0];
            $maxHour = $this->config['working_hours'][1];

            foreach(range($minHour,$maxHour) as $tmp_hour){
                $hour_text[$tmp_hour] = sprintf("%02d:00", $tmp_hour);
                $hour_value[$tmp_hour] = $tmp_hour;
            }
            unset($tmp_hour);

            $field_id = 'vacation_starttime';
            $input_vacationstarttime = new html_select(array('name' => '_vacation_starttime'));
            $input_vacationstarttime->add($hour_text, $hour_value);

            $field_id = 'vacation_endtime';
            $input_vacationendtime = new html_select(array('name' => '_vacation_endtime'));
            $input_vacationendtime->add($hour_text, $hour_value);

            $field_id = 'vacation_end';
            $input_vacationend = new html_inputfield(array('name' => '_vacation_end', 'id' => $field_id, 'size' => 10));
            $vacEnd = $this->obj->get_vacation_end();

            $periodFields = $this->gettext('vacationfrom').' '.
                $input_vacationstart->show(date($format, $vacStart)).' '.
                $input_vacationstarttime->show($hour_text[$this->obj->get_vacation_starttime()]).' '.
                $this->gettext('vacationto').' '.
                $input_vacationend->show(date($format, $vacEnd)).' '.
                $input_vacationendtime->show($hour_text[$this->obj->get_vacation_endtime()]);
            $table->add(null, $periodFields);

            $table->add_row();
            $field_id = 'every';
            $input_every = new html_inputfield(array('name' => '_every', 'id' => $field_id, 'size' => 5));
            $table->add('title', html::label($field_id, Q($this->gettext('frequency'))));
            $table->add(null, $this->gettext('answer_no_more_than_every').' '.
                    $input_every->show($this->obj->get_every()).' '.
                    $this->gettext('vacationdays'));
            
            $table->add_row();
            $identities = $this->get_identities();
            $default_identity = key($identities);
            $field_id = 'addressed_to';
            $input_addressed_to = new html_select(array('name' => '_addressed_to[]', 'id' => $field_id, 'multiple'=>true));
            $input_addressed_to->add($identities);
            $addressedTo = $this->obj->get_addressed_to();
            $table->add('title', html::label($field_id, Q($this->gettext('addressed_to'))));
            $table->add(null, $input_addressed_to->show($addressedTo ? $addressedTo : $default_identity));

            # Subject field
            $table->add(array('colspan' => 2, 'class' => 'section'),Q($this->gettext('subject')));
            $table->add_row();
            $field_id = 'vacation_subject';
            $input_vacationsubject = new html_inputfield(array('name' => '_vacation_subject', 'id' => $field_id, 'size' => 40));
            $table->add('title', html::label($field_id, Q($this->gettext('vacationsubject'))));
            $table->add(null, $input_vacationsubject->show($this->obj->get_vacation_subject()));

            $table->add_row();
            $field_id = '_append_subject';
            $input_appendsubject = new html_checkbox(array('name' => '_append_subject', 'id' => $field_id, 'value' => 1));
            $table->add('title', html::label($field_id, Q($this->gettext('append_subject'))));
            $table->add(null, $input_appendsubject->show($this->obj->get_append_subject() ? 1 : 0));

            # Message
            $table->add(array('colspan' => 2, 'class' => 'section'),Q($this->gettext('vacationmessage')));
            $table->add_row();
            $field_id = 'send_from';
            $input_sendfrom = new html_select(array('name' => '_send_from', 'id' => $field_id));
            $input_sendfrom->add($identities);
            $sendFrom = $this->obj->get_send_from();
            $table->add('title', html::label($field_id, Q($this->gettext('send_from'))));
            $table->add(null, $input_sendfrom->show($sendFrom ? $sendFrom : $default_identity));

            # Add the HTML Row
            $table->add_row();
            $field_id = 'vacation_message';
            if ($this->config['msg_format'] == 'html')
            {
                $this->app->output->add_label('converting', 'editorwarning');
                rcube_html_editor('identity');

                $text_vacationmessage =
                new html_textarea(
                    array('name' => '_vacation_message',
                    'id' => $field_id, 'spellcheck' => 1,
                    'rows' => 6, 'cols' => 40, 'class' => 'mce_editor'));
            }
            else
            {
                $text_vacationmessage =
                new html_textarea(array('name' => '_vacation_message',
                'id' => $field_id, 'spellcheck' => 1, 'rows' => 6, 'cols' => 40));
            }

            # 
            $table->add('top title', html::label($field_id, Q($this->gettext('vacationmessage'))));
            $table->add(null, $text_vacationmessage->show($this->obj->get_vacation_message()));

            # Get the HTML
            $tableHtml = $table->show();
            $submitLine = html::p(null,
                $this->app->output->button(array('command' => 'plugin.vacation_sieve-save',
                'type' => 'input', 'class' => 'button mainaction', 'label' => 'save')));

            # First line
            $boxTitle = html::div(array('id' => "prefs-title", 'class' => 'boxtitle'), $this->gettext('vacation'));

            $out = html::div(
                array('class' => 'box'),
                $boxTitle . html::div(array('class' => "boxcontent"), $tableHtml . $submitLine));

            $this->app->output->add_gui_object('vacationsieveform', 'vacation_sieve_form');

            return $this->app->output->form_tag(
                array(
                'id' => 'vacation_sieve_form',
                'name' => 'vacation_sieve_form',
                'method' => 'post',
                'action' => './?_task=settings&_action=plugin.vacation_sieve-save'),
                $out);
        }
        catch(Exception $exc)
        {
            $this->log_error('Fail to build form: '.$exc->getMessage());
        }
    }

    private function get_identities()
    {
        $select = array();
        $identities = $this->app->user->list_identities();

        foreach ( $identities as $identity )
        {
            $email = $identity['email'];
            $name = $identity['name'];
            $text = sprintf("%s <%s>", $name, $email);
            $select[$text] = $text;
        }

        return $select;
    }

    private function log_debug($msg)
    {
        if ($this->config['debug'])
        {
            write_log('vacation_sieve', $msg);
        }
    }

    private function log_error($msg)
    {
        write_log('vacation_sieve', $msg);
    }

}