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

class User extends Admin_Controller {
		
	function __construct() {
		parent::__construct();	
		$this->load->helper('form');
	}
	
	//this index is to list all users
	public function index() {
		//fetch all users
   		$this->data['users'] = $this->user_m->get();
		//load view
		$this->data['subview'] = 'admin/user/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 edit current user or add new user in admin
	public function edit($id=NULL) {
		if($id) {
			$this->data['user'] = $this->user_m->get($id);	
			count($this->data['user']) || $this->data['errors'][] 
			= 'User could not be found';
		} else {
			$this->data['user'] = $this->user_m->get_new();	
		}
		
		//validation in action
		$rules = $this->user_m->rules_admin;
		$id || $rules['password']['rules'] .= '|required'; //for new user password is required
		$id || $rules['password_confirm']['rules'] .= '|required'; //for new user password is required
		$this->form_validation->set_rules($rules);
		if($this->form_validation->run($this) == TRUE) {
			//if validation correct, then check whether user did update password or not. If no update password, then just change the username or email, and else..
			if($this->input->post('password')) {
				$data = $this->user_m->array_from_post(array(
				'name', 'email', 'password'));
				$data['password'] = $this->user_m->hash($data['password']);
				
			} else {
				$data = $this->user_m->array_from_post(array(
				'name', 'email'));
			}
			$this->user_m->save($data, $id);
			redirect('admin/user');
		} 
		
		$this->data['subview'] = 'admin/user/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 user 
	public function delete($id) {

		//check if id exist. If not exist, show 404.
		$count = $this->user_m->count_exist($id);
		
		if ($count == 0) {  
			//page not exist 
			show_404();
		}		
		$this->user_m->delete($id);
		redirect('admin/user');
	}
	
	function login() {

		//validation in action
		$rules = $this->user_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

		$this->form_validation->set_rules($rules);
		
		if($this->form_validation->run($this) == TRUE) {

		//we can login and redirect

			$this->user_m->login();
			
			if($this->user_m->loggedin() == TRUE) {
				redirect('admin/dashboard');	
			} else {
				$this->session->set_flashdata('error', 'Sorry Invalid Login');
				redirect('admin/user/login');	
			}
		} 
		
		$this->data['subview'] = 'admin/user/login';	
		$this->load->view('admin/templates/header', $this->data_header); 
		$this->load->view('admin/_layout_main', $this->data);
		$this->load->view('admin/templates/footer');		
	}
	
	function logout() {
		$this->user_m->logout();
		redirect('admin/user/login', 'refresh');		
	}
	
	//custom callback validation for unique email, used for edit user
	public function _unique_email($str) {
		$id = $this->uri->segment(4); //to fetch current id
		$this->db->where('email', $this->input->post('email'));	
		!$id || $this->db->where('id !=', $id);//dont choose current email
		$user = $this->user_m->get();
		if(count($user)) {
			$this->form_validation->set_message('_unique_email', '%s should be unique');
			return FALSE;	
		}
		return TRUE;
	}
}