<?php

class App_Settings_Revision_View extends Qs_ViewController
{
    protected $_actions = array('edit', 'update');
    protected $_file;
    
    protected function _init()
    {
        parent::_init();
        $this->_file = WWW_PATH . '/rev';
        if (false === $this->doc->getAuth()->getSuMode()) {
            $this->redirect(BASE_URL . '/admin');
        }
    }
    
    protected function _bindFormFields($form)
    {
        $form->addElement('text', 'revision', array('label' => 'Site Revision'));
        $form->revision->addValidator('int');
        $form->revision->getValidator('int')->setMessage('Revision is in wrong format', Zend_Validate_Int::NOT_INT);
    }
    
    protected function _getEditForm()
    {
        $form = $this->_getBaseForm();
        $this->_bindFormFields($form);
        $this->_bindFormButtons($form);
        $form->addElement('hidden', 'action', array('value' => 'update'));
        return $form;
    }
    
    protected function _doEdit()
    {
        $form = $this->_getEditForm();
        $data = array();
        if (file_exists($this->_file)) {
            $data['revision'] = (int) file_get_contents($this->_file);
        }
        $form->setDefaults($data);
        $this->_renderMainForm($form);
    }
    
    protected function _doUpdate()
    {
        $form = $this->_getEditForm();
        if ($form->validate()) {
            $revision = $form->getValue('revision');
            if ($revision) {
                file_put_contents($this->_file, $revision);
            } else {
                if (file_exists($this->_file)) {
                    unlink($this->_file);
                }
            }
            $this->_postUpdate();
            $this->_setBackMessage('Revision has been updated');
            $this->_doBack();
        } else {
            $this->_renderMainForm($form);
        }
        return $this;
    }
}