<?php defined('SYSPATH') OR die('No direct access allowed.');

class Signature_Controller extends AuthorizedController{
	public function index(){
		// Loading common view
		$view = View::factory('signature')
		->set('header', new View('header'))
		->set('footer', new View('footer'))
		->set('menubar', new View('menubar'));

		// User object
		$user = ORM::factory('user', $this->session->get('user_id',false));

		$view->render(true);
	}
	public function _render_form($form){
		View::factory('addsignature')
		->set('header', new View('header'))
		->set('footer', new View('footer'))
		->set('form',$form->get(true))
		->set('menubar', new View('menubar'))
		->render(true);
	}
	public function _check_feed_source($feed_source){
		$url = parse_url($feed_source);

		// Building url correct condition
		$condition = isset($url['scheme'])
		&& ($url['scheme']=='http' || $url['scheme']=='https')
		&& isset($url['host']) && !empty($url['host'])
		&& isset($url['path']) && !empty($url['path']);

		if($condition==false){
			return false;
		}

		// Checking whether the url is accessible

		$feed = new SimplePie();
		$feed->set_feed_url($feed_source);
		$feed->enable_order_by_date(false);
		$feed->set_cache_location(Kohana::config('feed.cache_path'));
		$feed->init();

		// If we get a response return it valid
		if($feed->get_title()){
			return true;
		}else{
			return false;
		}
		/*
		 * @todo Feed must be validated by an feed validator or xml validator.
		 */
	}
	public function add(){
		// A wizard to add new signature

		$form = Formo::factory()
		->add('Friendly feed name')
		->add('Feed source')
		->add('submit', 'value=Next')
		->add_rule('friendly_feed_name','alpha_numeric','Name must be alpha numeric')
		->add_rule('friendly_feed_name','length[6,32]','Size of name should be in between 6 to 32 characters')
		->add_rule('feed_source','url','Feed source must be a valid url')
		->add_rule('feed_source',array($this, '_check_feed_source'),'Feed source must be a valid accessible remote feed url');
		if($form->validate()){
			// Get the values
			$data = $form->get_values();

			// Save the values in session
			$this->session->set('feed_source',$data['feed_source']);
			$this->session->set('feed_name',$data['friendly_feed_name']);

			// Forword to next part of the wizard
			url::redirect('/signature/add2');

		}else{
			$this->_render_form($form);
		}
	}
	public function _check_text_color($color){
		return preg_match('/^[\dA-Ha-h]{6}$/', $color);
	}
	public function _check_text_format($text_format){
		if(empty($text_format)){
			return true;
		}else{
			return preg_match('/^[\s \w @\-_\,\.\%]{1,64}$/', $text_format);
		}
	}
	public function add2(){
		// A wizard to add new signature

		// Get the feed

		$feed = new SimplePie();
		$feed->set_feed_url($this->session->get('feed_source',false));
		$feed->enable_order_by_date(false);
		$feed->set_cache_location(Kohana::config('feed.cache_path'));
		$feed->init();

		$feed->get_item_quantity();

		$form = Formo::factory()
		->add_select('Item index',range(0,$feed->get_item_quantity()-1,1), 'Item index')
		->add_select('Item element name',array('title'=>'Title','link'=>'Link','description'=>'Description'))
		->add('Text format')
		->add('Text color')
		->add('submit', 'value=Show Preview')
		->add_rule('item_index','digit','Item index must be a valid index')
		->add_rule('item_element_name','alpha_dash','Must be a valid Feed element name')
		->add_rule('text_color', array($this, '_check_text_color'),'Must be in hexadecimal color coded format')
		->add_rule('text_format',array($this,'_check_text_format'),'only @-%_,. and alphanumeric characters with spaces allowed');


		if($form->validate()){
			// Get the values
			$data = $form->get_values();

			// Save the values in session
			$this->session->set('item_index',$data['item_index']);
			$this->session->set('item_element_name',$data['item_element_name']);
			$this->session->set('text_color',$data['text_color']);
			$this->session->set('text_format',$data['text_format']);

			// Forword to next part of the wizard
			// url::redirect('/signature/add3');
			echo "Will show preview here";

		}else{
			$this->_render_form($form);
		}
	}
}