<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Pages extends Admin_Controller {

	//this property is used for validating existing page title on call back edit page
	private $page_current_id = NULL;
		
	function __construct() {
		parent::__construct();	
		$this->load->model('page_m'); 
	}
		
	//this is to list all pages
	public function index() {
		
		//pagination in action. 20 results per page
		$this->load->library('pagination');
		$config['base_url'] = base_url() . 'admin/pages/index';
		$config['per_page'] = 20;
		$config["uri_segment"] = 4; 

		//fetch all pages
		$config['total_rows'] = $this->page_m->record_count();  
		$this->pagination->initialize($config);
   		$this->data['pages'] = $this->page_m->get_all_pages($config["per_page"], 
		$this->uri->segment(4)); 

		//get parent pages only
   		$this->data['parent_pages'] = $this->page_m->get_all_parent_pages($config["per_page"], $this->uri->segment($config['uri_segment'])); 
	
		//load view
		$this->data['subview'] = 'admin/pages/index';
		$this->load->view('admin/templates/header', $this->data_header); 
		$this->load->view('admin/_layout_main', $this->data);
		$this->load->view('admin/templates/footer');		
    }
	
	//to add a new page 
	public function add() {
	
		$this->data['pages'] = $this->page_m->get_new();
		$this->data['parent_pages'] = $this->page_m->get_parent_pages();	 

		//get ordering number and display at add form
		$this->db->select_max('priority')->from('pages')->where('parent', NULL);
		$current_priority = $this->db->get()->row()->priority;
		if($current_priority == NULL) {
			$this->data['pages']->priority = 1;	
		} else {
			$this->data['pages']->priority = $current_priority + 1;
		} 
		
		//validation in action
		//validation check in action
		$config = $this->page_m->rules;

		$this->load->library('form_validation');
		$this->form_validation->set_error_delimiters('<div class="error">', '</div>'); //above is to add class to form validation error, to be styled

		$this->form_validation->set_rules($config); 
		$this->form_validation->set_error_delimiters('<div class="error">', '</div>');

		if($this->form_validation->run($this) == TRUE) {
			
			$data = $this->table_data_processing($this->input->post('page_title'), $this->input->post('page_title_en'), $this->input->post('status'), $this->input->post('body_text'), $this->input->post('body_text_en'), $this->input->post('meta_description'), $this->input->post('meta_keywords'));

			$this->page_m->add_page($data);

			$this->session->set_flashdata('success', '<br><p style="background:green; color:white; padding:5px; font-weight:bold;">Page Add Successful</p>');

			redirect('admin/pages');
			
		} 
		
		$this->data['subview'] = 'admin/pages/edit';
		$this->load->view('admin/templates/header', $this->data_header); 
		$this->load->view('admin/_layout_main', $this->data);
		$this->load->view('admin/templates/footer');	
	}
	
	//to edit page in admin
	public function edit($id = NULL) {

		//check if id exist. If not exist, show 404.
		$count = $this->page_m->count_exist($id);
		
		if ($count == 0) {
			//page not exist
			show_404();
		}		

		$this->data['pages'] = $this->page_m->get($id);
		$this->data['parent_pages'] = $this->page_m->get_parent_pages();
		$this->page_current_id = (int) $id;	
		
		//validation check in action 
		$config = $this->page_m->rules;

		$this->load->library('form_validation');
		$this->form_validation->set_error_delimiters('<div class="error">', '</div>'); //above is to add class to form validation error, to be styled

		$this->form_validation->set_rules($config); 
		$this->form_validation->set_error_delimiters('<div class="error">', '</div>');

		if($this->form_validation->run($this) == TRUE) {
			
			$data = $this->table_data_processing($this->input->post('page_title'), $this->input->post('page_title_en'), $this->input->post('status'), $this->input->post('body_text'), $this->input->post('body_text_en'), $this->input->post('meta_description'), $this->input->post('meta_keywords'));

			$this->page_m->edit_page($id, $data); 

			$this->session->set_flashdata('success', '<br><p style="background:green; color:white; padding:5px; font-weight:bold;">Page Edit Successful</p>');
			
			redirect('admin/pages');
			
		} 
		
		$this->data['subview'] = 'admin/pages/edit';
		$this->load->view('admin/templates/header', $this->data_header); 
		$this->load->view('admin/_layout_main', $this->data);
		$this->load->view('admin/templates/footer');	
	}
	
	
	//to delete a page
	public function delete($id) {

		//check if id exist. If not exist, show 404.
		$count = $this->page_m->count_exist($id);
		
		if ($count == 0) {  
			//page not exist  
			show_404();
		}		
		
		//delete page
		$this->page_m->delete($id);

		$this->session->set_flashdata('success', '<br><p style="background:green; color:white; padding:5px; font-weight:bold;">Page Delete Successful</p>');
		redirect('admin/pages');
	}


	//callback function validation add new pages
	public function _cek_existing_page_title($str) {

		$num_rows = $this->page_m->cek_existing_page_title($str, $this->page_current_id);   
		if ($num_rows != 0 ) { 
			$this->form_validation->set_message('_cek_existing_page_title', 'Page title indonesian already exist !'); 
			return FALSE;
		} else {
			return TRUE;     
		}
	}

	//callback function validation add new pages
	public function _cek_existing_page_en_title($str) {

		$num_rows = $this->page_m->cek_existing_page_en_title($str, $this->page_current_id);   
		if ($num_rows != 0 ) { 
			$this->form_validation->set_message('_cek_existing_page_en_title', 'Page title english already exist !'); 
			return FALSE;
		} else {
			return TRUE;     
		}
	}

	private function table_data_processing($page_title, $page_title_en, $status, $body_text, $body_text_en,
		$meta_description, $meta_keywords) {

		$data = array(
			'page_title' => $this->security->xss_clean($page_title),
			'page_title_en' => $this->security->xss_clean($page_title_en),
			'alias' => url_title($this->security->xss_clean($page_title)),
			'alias_en' => url_title($this->security->xss_clean($page_title_en)),
			'status' => $status,
			'body_text' => $this->security->xss_clean($body_text),
			'body_text_en' => $this->security->xss_clean($body_text_en),
			'meta_description' => $this->security->xss_clean($meta_description),
			'meta_keywords' => $this->security->xss_clean($meta_keywords),
			'priority' => $this->security->xss_clean($this->input->post('priority')),
		);

		if ($this->input->post('parent_id') == 'no-parent') {
			$data['parent'] = NULL;
		} else {
			$data['parent'] = (int) $this->input->post('parent_id');
		}

		return $data;
	}

	
		
}