<?php

define_class(__FILE__, 'MailView');

require_once('class/DB/Grid/Grid.php');

class MailView extends DB_Grid
{
    public $actions = array(
        'list'               => 'doList',
        'cancel'             => 'doBack',
        'new'                => 'doNew',
        'insert'             => 'doInsert',
        'edit'               => 'doEdit',
        'update'             => 'doUpdate',
        'del'                => 'doDelete',
        'setDefaultTemplate' => 'doSetDefaultTemplate',
        'chooseRecipients'   => 'doChooseRecipients',
        'saveRecipients'     => 'doSaveRecipients',
        'preview'            => 'doPreview',
        'send'               => 'doSend',
        'history'            => 'doHistory',
    );
    
    function exec($Doc)
    {
        $this->DBObj = SiteMap::getObj('Mail/Obj.php', isset($_REQUEST['id']) ? $_REQUEST['id'] : null);
        $this->Doc = $Doc;
        parent::exec();
    }
    
    function _doListBind(&$DB_List)
    {
        $DB_List->insertColLast(
            'send_date',
            array(
                'title'     => 'Posted Date',
                'order_by'  => 'send_date',
                'tpl'       => DB_LIST_CELL_DATE,
                'params'    => array('send_date')
            )
        );
        
        $DB_List->insertColLast(
            'title',
            array(
                'title'     => 'Title',
                'order_by'  => 'title',
                'tpl'       => DB_LIST_CELL_TEXT,
                'params'    => array('title')
            )
        );
        
        $DB_List->insertColLast(
            'options',
            array(
                'title'     => 'Options',
                'tpl'       => 'Mail/cells/options.tpl',
                'edit_link' => BASE_URL . '/' . CURR_PAGE . '?action=edit&id=',
                'del_link'  => BASE_URL . '/' . CURR_PAGE . '?action=del&id=',
                'params'    => array('id')
            )
        );
        return true;
    }
    
    function _bindFormFields($form)
    {
        $form->addElement('text', 'subject', 'Subject');
        $form->addElement('text', 'mail_from', 'From');
        $form->addElement('text', 'author', 'Author');

        $send_date = &$form->createElement('calendar', 'send_date', 'Posting Date');
        $form->addElement($send_date);
        
        $form->addElement('html_editor', 'html', 'Content');
        $form->addRuleRequired(array('subject', 'mail_from', 'author'));
        $form->addRuleRequired(array('html'), 'server');
        return $form;
    }
    
    function _getNewForm()
    {
        $form = $this->_getBaseForm();
        $form = $this->_bindFormFields($form);
        $data = array(
            'send_date' => date('Y-m-d'),
            'html'      => $this->DBObj->getDefaultTemplate(),
        );
        $form->setDefaults($data);
        $this->setFormTitle($form, 'Add '.$this->DBObj->itemName);
        $form->addElement('hidden', 'action', 'insert') ;
        return $form;
    }
    
    function doSetDefault()
    {
        $this->DBObj->setDefault();
        $this->doBack();
    }
    
    function addLink()
    {
        $item = array(
            'tpl'      => 'Mail/template-toolbar.tpl',
            'options'  => $this->DBObj->getMailTemplate4Select('title'),
            'selected' => $this->DBObj->getDefaultTemplateId(),
        );
        $this->Doc->addContent($item);
        parent::addLink();
    }
    
    function doSetDefaultTemplate()
    {
        $this->DBObj->setDefaultTemplate($_REQUEST['id_template']);
        $this->doBack();
    }
    
    function getRecipientsFrom()
    {
        $form = $this->_getBaseForm();
        $form->addElement(
            'extended_textarea', 
            'recipients_list', 
            'Email addresses', 
            array('cols' => 80, 'rows' => 4), 
            '', 
            '<div class="note">Note: You may enter one or more email addresses above separated by commas</div>'
        );
        $form->addElement('file_db', 'recipients_csv', 'CSV file with email addresses');
        $form->addElement(
            'advmultiselect', 
            'groups', 
            array('Contact Groups', '<center>Available</center>', '<center>Selected</center>'),
            $this->DBObj->getContactGroup4Select('title'),
            array('style' => 'width:185px;')
        );
        $form->addElement('hidden', 'action', 'saveRecipients');
        $form->addElement('hidden', 'id');
        $form->addFormRule(array($this, 'validateForm'));
        $form->setSubmitTitle('Save & Preview');
        return $form;
    }
    
    function doChooseRecipients()
    {
        $form = $this->getRecipientsFrom();
        $this->DBObj->initFromDB();
        $data = $this->DBObj->getData();
        $form->setDefaults($data);
        $this->renderRecipientsForm($form);
    }
    
    function parseEmails($text)
    {
        $emails = preg_replace('/[\r\n]+/',' ', $text);
        $emails = split('[, ;]', $emails);
        $emails = array_filter($emails, 'trim');
        return $emails;
    }
    
    function getRecipientsFromData($data)
    {
        $emails = array();
        $recipients_list = $this->parseEmails($data['recipients_list']);
        if (!empty($recipients_list)) {
            $emails = array_merge($emails, $recipients_list); 
        }
        if (!empty($data['groups'])) {
            $contactEmails = $this->DBObj->getContactEmailsByGroup($data['groups']);
            $emails = array_merge($emails, $contactEmails); 
        }
        if (!empty($data['recipients_csv'])) {
            $file = WWW_PATH . '/userfiles/' . $data['recipients_csv'];
            $recipients_csv = file_get_contents($file);
            $recipients_csv = $this->parseEmails($recipients_csv);
            $emails = array_merge($emails, $recipients_csv); 
        }
        $emails = array_unique($emails);
        return $emails;
    }
    
    function validateForm($data, $files)
    {
        $errors = array();
        $emails = array();
        
        // textarea
        $recipients_list = $this->parseEmails($data['recipients_list']);
        if (!empty($recipients_list)) {
            if (true !== ($invalidEmails = $this->validateEmails($recipients_list))) {
                $errors['recipients_list'] = 'Wrong email address (' . implode(', ', $invalidEmails) . ')';
            } else {
                $emails = array_merge($emails, $recipients_list); 
            }
        }
        
        // file csv
        if (isset($data['recipients_csv']['file_name'])) {
            $file = WWW_PATH . '/userfiles/' . $data['recipients_csv']['file_name'];
        } else {
            $file = $files['recipients_csv']['tmp_name']['file'];
            $contentType = $files['recipients_csv']['type']['file'];
            if (!in_array($contentType, array('text/csv', 'text/comma-separated-values', 'application/octet-stream'))) {
                $errors['recipients_csv'] = 'File is in wrong format';
                $file = null;
            }
        }
        if ($file && file_exists($file)) {
            $recipients_csv = file_get_contents($file);
            $recipients_csv = $this->parseEmails($recipients_csv);
            if (true !== ($invalidEmails = $this->validateEmails($recipients_csv))) {
                $errors['recipients_csv'] = 'Wrong email address (' . implode(', ', $invalidEmails) . ')';
            } else {
                $emails = array_merge($emails, $recipients_csv); 
            }
        }
        if (!empty($data['groups'])) {
            $contactEmails = $this->DBObj->getContactEmailsByGroup($data['groups']);
            $emails = array_merge($emails, $contactEmails); 
        }
        if (empty($emails)) {
            $errors['form_error'] = 'Emails are required';
        }
        return empty($errors) ? true : $errors;
    }
    
    function validateEmails($emails)
    {
        $err = array();
        $regex = '/^((\"[^\"\f\n\r\t\v\b]+\")|([\w\!\#\$\%\&\'\*\+\-\~\/\^\`\|\{\}]+(\.[\w\!\#\$\%\&\'\*\+\-\~\/\^\`\|\{\}]+)*))@((\[(((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9])))\])|(((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9]))\.((25[0-5])|(2[0-4][0-9])|([0-1]?[0-9]?[0-9])))|((([A-Za-z0-9\-])+\.)+[A-Za-z\-]+))$/';
        $emails = array_unique($emails);
        $invalidEmails = array();
        foreach ($emails as $email) {    
            if (!preg_match($regex, $email)) {
                $invalidEmails[] = $email;
            }
        }
        if (count($invalidEmails)) {
            return $invalidEmails;
        }
        return true;
    }
    
    function doSaveRecipients()
    {
        $form = $this->getRecipientsFrom();
        if ($form->validate()) {
            $this->DBObj->initFromForm($form);
            $this->DBObj->update($data);
            require_once('class/HTTP.php');
            skHTTP::redirect(BASE_URL . '/' . CURR_PAGE . '?action=preview&id=' . $this->DBObj->id);
        }
        $this->renderRecipientsForm($form);
    }
    
    function renderRecipientsForm($form)
    {
        if (isset($form->_errors['form_error'])) {
            $this->Doc->addContent(array('tpl' => 'msg_error.tpl', 'text' => $form->_errors['form_error']));
        }
        $form->exec();
    }
    
    function doPreview()
    {
        $this->DBObj->initFromDB();
        $item = $this->DBObj->getData();
        $recipients = $this->getRecipientsFromData($item);
        $item['recipients'] = $recipients;
        $item['recipientsCount'] = count($recipients);
        $item['tpl'] = BASE_PATH . '/tpl/Mail/preview.tpl';
        $this->Doc->addContent($item);
    }
    
    function doSend()
    {
        $this->DBObj->initFromDB();
        $data = $this->DBObj->getData();
        $data['html'] = str_replace(BASE_URL . '/fckfiles/', '', $data['html']);
        $recipients = $this->getRecipientsFromData($data);
        
        require_once('lib/htmlMimeMail/htmlMimeMail.php');
        $mail = new htmlMimeMail();
        $mail->setHtml($data['html'], null, realpath(WWW_PATH . '/fckfiles') . '/');
        $mail->setFrom($data['mail_from']);
		$mail->setSubject($data['subject']);
		$mail->setHeader('X-Mailer', 'HTML Mime mail class');
        
        foreach ($recipients as $email) {
            $result = $mail->send(array($email));
            $this->DBObj->writeReport($data['id'], $email, $result);
        }
        Session::setData($this->_getPage4SaveMessage(), 'msg', $this->DBObj->itemName . ' has been sent');
        $this->doBack();
    }
    
    function doHistory()
    {
        //$this->addLink();
        $item = $this->DBObj->getReport();
        $item['tpl'] = BASE_PATH . '/tpl/Mail/history.tpl';
        $this->Doc->addContent($item);
    }
}