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

class Visitor extends CI_Controller {

	function __construct()
	{
		parent::__construct();
	}

    function _remap($method) {
        if($method == "config") {
            $this->$method();
        }
		elseif($method == "map") {
            $this->map($method);
        }
        elseif($method == "radio_display_component") {
            $this->radio_display_component($method);
        }
        elseif($method == "satellites") {
            $this->satellites($method);
        }
        elseif($method == "getGridsjs") {
            $this->getGridsjs();
        }
        elseif($method == "search") {
            $this->search($method);
        }
        else {
            $this->index($method);
        }
    }

	/*
        This is the default function that is called when the user visits the root of the public controller
    */
	public function index($public_slug = NULL)
	{

        $this->load->model('user_model');

		// Check if users logged in
		if($this->user_model->validate_session() != 0) {
            // If environment is set to development then show the debug toolbar
		    if(ENVIRONMENT == 'development') {
                $this->output->enable_profiler(TRUE);
            }
		}

        // Check slug passed and is valid
        if ($this->security->xss_clean($public_slug, TRUE) === FALSE)
        {
            // Public Slug failed the XSS test
            log_message('error', '[Visitor] XSS Attack detected on public_slug '. $public_slug);
            show_404('Unknown Public Page.');
        } else {
            // Checked slug passed and clean
            log_message('info', '[Visitor] public_slug '. $public_slug .' loaded');

            // Check if the slug is contained in the station_logbooks table
            $this->load->model('logbooks_model');
            if($this->logbooks_model->public_slug_exists($public_slug)) {
                // Load the public view

				$logbook_id = $this->logbooks_model->public_slug_exists_logbook_id($public_slug);
                if($logbook_id != false)
                {
                    // Get associated station locations for mysql queries
                    $logbooks_locations_array = $this->logbooks_model->list_logbook_relationships($logbook_id);
                    
                    // Get logbook details to check public settings
                    $logbook_details = $this->logbooks_model->logbook($logbook_id);
                    $data['logbook_settings'] = $logbook_details->row();

					if (!$logbooks_locations_array) {
						show_404('Empty Logbook');
					}
                } else {
                    log_message('error', $public_slug.' has no associated station locations');
                    show_404('Unknown Public Page.');
                }

                $this->load->model('logbook_model');

				// load config and init pagination
				$this->load->library('pagination');
			
				//Pagination config
				$config['base_url'] = base_url().'index.php/visitor/'. $public_slug . '/index';
				$config['total_rows'] = $this->logbook_model->total_qsos($logbooks_locations_array);
				$config['per_page'] = '25';
				$config['num_links'] = 6;
				$config['full_tag_open'] = '<ul class="pagination">';
				$config['full_tag_close'] = '</ul>';
				$config['attributes'] = ['class' => 'page-link'];
				$config['first_link'] = false;
				$config['last_link'] = false;
				$config['first_tag_open'] = '<li class="page-item">';
				$config['first_tag_close'] = '</li>';
				$config['prev_link'] = '&laquo';
				$config['prev_tag_open'] = '<li class="page-item">';
				$config['prev_tag_close'] = '</li>';
				$config['next_link'] = '&raquo';
				$config['next_tag_open'] = '<li class="page-item">';
				$config['next_tag_close'] = '</li>';
				$config['last_tag_open'] = '<li class="page-item">';
				$config['last_tag_close'] = '</li>';
				$config['cur_tag_open'] = '<li class="page-item active"><a href="#" class="page-link">';
				$config['cur_tag_close'] = '<span class="visually-hidden">(current)</span></a></li>';
				$config['num_tag_open'] = '<li class="page-item">';
				$config['num_tag_close'] = '</li>';

				$this->pagination->initialize($config);


                // Public visitor so no QRA to setup
                $data['qra'] = "none";

                $this->load->model('cat');

                $data['radio_status'] = $this->cat->recent_status();

                // Store info
                $data['todays_qsos'] = $this->logbook_model->todays_qsos($logbooks_locations_array);
                $data['total_qsos'] = $this->logbook_model->total_qsos($logbooks_locations_array);
                $data['month_qsos'] = $this->logbook_model->month_qsos($logbooks_locations_array);
                $data['year_qsos'] = $this->logbook_model->year_qsos($logbooks_locations_array);

                // Load  Countries Breakdown data into array
                $CountriesBreakdown = $this->logbook_model->total_countries_confirmed($logbooks_locations_array);

                $data['total_countries'] = $CountriesBreakdown['Countries_Worked'];
                $data['total_countries_confirmed_paper'] = $CountriesBreakdown['Countries_Worked_QSL'];
                $data['total_countries_confirmed_eqsl'] = $CountriesBreakdown['Countries_Worked_EQSL'];
                $data['total_countries_confirmed_lotw'] = $CountriesBreakdown['Countries_Worked_LOTW'];

                $QSLStatsBreakdownArray =$this->logbook_model->get_QSLStats($logbooks_locations_array);

                $data['total_qsl_sent'] = $QSLStatsBreakdownArray['QSL_Sent'];
                $data['total_qsl_rcvd'] = $QSLStatsBreakdownArray['QSL_Received'];
                $data['total_qsl_requested'] = $QSLStatsBreakdownArray['QSL_Requested'];

                $data['total_eqsl_sent'] = $QSLStatsBreakdownArray['eQSL_Sent'];
                $data['total_eqsl_rcvd'] = $QSLStatsBreakdownArray['eQSL_Received'];

                $data['total_lotw_sent'] = $QSLStatsBreakdownArray['LoTW_Sent'];
                $data['total_lotw_rcvd'] = $QSLStatsBreakdownArray['LoTW_Received'];
				
				// Show paginated results
				$data['results'] = $this->logbook_model->get_qsos($config['per_page'], $this->uri->segment(4), $logbooks_locations_array);

                $data['page_title'] = "Dashboard";
                $data['slug'] = $public_slug;

                $this->load->model('dxcc');
                $dxcc = $this->dxcc->list_current();

                $current = $this->logbook_model->total_countries_current($logbooks_locations_array);

                $data['total_countries_needed'] = count($dxcc->result()) - $current;

                $this->load->view('visitor/layout/header', $data);
                $this->load->view('visitor/index');
                $this->load->view('visitor/layout/footer');
            } else {
                // Show 404
                log_message('error', '[Visitor] XSS Attack detected on public_slug '. $public_slug);
                show_404('Unknown Public Page.');
            }

        }
	}

	public function radio_display_component() {
		$this->load->model('cat');

		$data['radio_status'] = $this->cat->recent_status();
		$this->load->view('components/radio_display_table', $data);
	}

    public function map() {
		$this->load->model('logbook_model');

		$this->load->library('qra');

        $slug = $this->security->xss_clean($this->uri->segment(3));
		$offset = $this->security->xss_clean($this->uri->segment(4));

        $this->load->model('logbooks_model');
        $logbook_id = $this->logbooks_model->public_slug_exists_logbook_id($slug);
        if($logbook_id != false)
        {
            // Get associated station locations for mysql queries
            $logbooks_locations_array = $this->logbooks_model->list_logbook_relationships($logbook_id);

			if (!$logbooks_locations_array) {
				show_404('Empty Logbook');
			}
        } else {
            log_message('error', $slug.' has no associated station locations');
            show_404('Unknown Public Page.');
        }

		$qsos = $this->logbook_model->get_qsos('18', $offset, $logbooks_locations_array);
		// [PLOT] ADD plot //
		$plot_array = $this->logbook_model->get_plot_array_for_map($qsos->result());
	
		header('Content-Type: application/json; charset=utf-8');
		echo json_encode($plot_array);
	}

    public function satellites()
	{

        $slug = $this->security->xss_clean($this->uri->segment(3));
        $data['slug'] = $slug;
        $this->load->model('logbooks_model');
        if($this->logbooks_model->public_slug_exists($slug)) {
            // Load the public view
			$logbook_id = $this->logbooks_model->public_slug_exists_logbook_id($slug);
			if($logbook_id != false)
			{
				// Get associated station locations for mysql queries
				$logbooks_locations_array = $this->logbooks_model->list_logbook_relationships($logbook_id);

				if (!$logbooks_locations_array) {
					show_404('Empty Logbook');
				}
			} else {
				log_message('error', $slug.' has no associated station locations');
				show_404('Unknown Public Page.');
			}
        }

		$this->load->model('gridmap_model');

		$data['page_title'] = "Public Gridsquare Map";

		// Get available bands for this logbook
		$location_list = implode(',', array_map('intval', $logbooks_locations_array));
		
		// Get bands (excluding satellites) 
		$bands_query = $this->db->query(
			"SELECT distinct LOWER(`COL_BAND`) as `COL_BAND` FROM `".$this->config->item('table_name')."` WHERE station_id in (" . $location_list . ") AND COL_PROP_MODE != \"SAT\" ORDER BY COL_BAND"
		);
		$bands = array();
		foreach($bands_query->result() as $row){
			array_push($bands, strtoupper($row->COL_BAND));
		}
		
		// Check if satellites exist and add SAT band
		$sat_query = $this->db->query(
			"SELECT distinct LOWER(`COL_PROP_MODE`) as `COL_PROP_MODE` FROM `".$this->config->item('table_name')."` WHERE station_id in (" . $location_list . ") AND COL_PROP_MODE = \"SAT\""
		);
		if ($sat_query->num_rows() > 0) {
			array_push($bands, 'SAT');
		}
		
		// Get available satellites
		$sats_query = $this->db->query(
			"SELECT distinct col_sat_name FROM ".$this->config->item('table_name')." WHERE station_id in (" . $location_list . ") and coalesce(col_sat_name, '') <> '' ORDER BY col_sat_name"
		);
		$sats_available = array();
		foreach($sats_query->result() as $row){
			array_push($sats_available, $row->col_sat_name);
		}
		
		// Get available modes
		$modes_query = $this->db->query(
			"SELECT distinct col_mode FROM ".$this->config->item('table_name')." WHERE station_id in (" . $location_list . ") and coalesce(col_mode, '') <> '' ORDER BY col_mode"
		);
		$modes = array();
		foreach($modes_query->result() as $row){
			if (!in_array($row->col_mode, $modes)) {
				array_push($modes, $row->col_mode);
			}
		}
		
		// Get submodes as well
		$submodes_query = $this->db->query(
			"SELECT distinct col_submode FROM ".$this->config->item('table_name')." WHERE station_id in (" . $location_list . ") and coalesce(col_submode, '') <> '' ORDER BY col_submode"
		);
		foreach($submodes_query->result() as $row){
			if (!in_array($row->col_submode, $modes)) {
				array_push($modes, $row->col_submode);
			}
		}
		asort($modes);
		
		$data['bands'] = $bands;
		$data['sats_available'] = $sats_available;
		$data['modes'] = $modes;
		
		// Set default values for visitor (no user preferences)
		$data['user_default_band'] = 'All';
		$data['user_default_confirmation'] = '';


		// Generate initial grid data (default to showing all bands)
		$default_band = 'All';
		$default_mode = 'All';
		$default_sat = 'All';

		$array_grid_2char = array();
		$array_grid_4char = array();
		$array_grid_6char = array();

		$array_confirmed_grid_2char = array();
		$array_confirmed_grid_4char = array();
		$array_confirmed_grid_6char = array();

		// Get initial data for "All" bands
		$query = $this->gridmap_model->get_band_confirmed($default_band, $default_mode, 'false', 'false', 'false', 'false', $default_sat, $logbooks_locations_array);

		if ($query && $query->num_rows() > 0)
		{
			foreach ($query->result() as $row)
			{
				$grid_2char_confirmed = strtoupper(substr($row->GRID_SQUARES,0,2));
				$grid_4char_confirmed = strtoupper(substr($row->GRID_SQUARES,0,4));
				if ($this->config->item('map_6digit_grids')) {
					$grid_6char_confirmed = strtoupper(substr($row->GRID_SQUARES,0,6));
				}

				// Check if 2 Char is in array
				if(!in_array($grid_2char_confirmed, $array_confirmed_grid_2char)){
					array_push($array_confirmed_grid_2char, $grid_2char_confirmed);
				}

				if(!in_array($grid_4char_confirmed, $array_confirmed_grid_4char)){
					array_push($array_confirmed_grid_4char, $grid_4char_confirmed);
				}

				if ($this->config->item('map_6digit_grids')) {
					if(!in_array($grid_6char_confirmed, $array_confirmed_grid_6char)){
						array_push($array_confirmed_grid_6char, $grid_6char_confirmed);
					}
				}
			}
		}

		// Get worked squares (all bands by default)
		$query = $this->gridmap_model->get_band($default_band, $default_mode, 'false', 'false', 'false', 'false', $default_sat, $logbooks_locations_array);

		if ($query && $query->num_rows() > 0)
		{
			foreach ($query->result() as $row)
			{
				$grid_two = strtoupper(substr($row->GRID_SQUARES,0,2));
				$grid_four = strtoupper(substr($row->GRID_SQUARES,0,4));
				if ($this->config->item('map_6digit_grids')) {
					$grid_six = strtoupper(substr($row->GRID_SQUARES,0,6));
				}

				// Check if 2 Char is in array
				if(!in_array($grid_two, $array_grid_2char)){
					array_push($array_grid_2char, $grid_two);
				}

				if(!in_array($grid_four, $array_grid_4char)){
					array_push($array_grid_4char, $grid_four);
				}

				if ($this->config->item('map_6digit_grids')) {
					if(!in_array($grid_six, $array_grid_6char)){
						array_push($array_grid_6char, $grid_six);
					}
				}
			}
		}

		// Get VUCC squares (worked)
		$query_vucc = $this->gridmap_model->get_band_worked_vucc_squares($default_band, $default_mode, 'false', 'false', 'false', 'false', $default_sat, $logbooks_locations_array);

		if ($query_vucc && $query_vucc->num_rows() > 0)
		{
			foreach ($query_vucc->result() as $row)
			{
				$grids = explode(",", $row->COL_VUCC_GRIDS);

				foreach($grids as $key) {
					$grid_two = strtoupper(substr($key,0,2));
					$grid_four = strtoupper(substr($key,0,4));

					// Check if 2 Char is in array
					if(!in_array($grid_two, $array_grid_2char)){
						array_push($array_grid_2char, $grid_two);
					}

					if(!in_array($grid_four, $array_grid_4char)){
						array_push($array_grid_4char, $grid_four);
					}
				}
			} 
		}

		// Confirmed VUCC Squares  
		$query_vucc = $this->gridmap_model->get_band_confirmed_vucc_squares($default_band, $default_mode, 'false', 'false', 'false', 'false', $default_sat, $logbooks_locations_array);

		if ($query_vucc && $query_vucc->num_rows() > 0)
		{
			foreach ($query_vucc->result() as $row)
			{
				$grids = explode(",", $row->COL_VUCC_GRIDS);

				foreach($grids as $key) {
					$grid_2char_confirmed = strtoupper(substr($key,0,2));
					$grid_4char_confirmed = strtoupper(substr($key,0,4));

					// Check if 2 Char is in array
					if(!in_array($grid_2char_confirmed, $array_confirmed_grid_2char)){
						array_push($array_confirmed_grid_2char, $grid_2char_confirmed);
					}

					if(!in_array($grid_4char_confirmed, $array_confirmed_grid_4char)){
						array_push($array_confirmed_grid_4char, $grid_4char_confirmed);
					}
				}
			}
		}


		function js_str($s)
		{
		    return '"' . addcslashes($s, "\0..\37\"\\") . '"';
		}

		function js_array($array)
		{
		    $temp = array_map('js_str', $array);
		    return '[' . implode(',', $temp) . ']';
		}


		$data['grid_2char_confirmed'] = js_array($array_confirmed_grid_2char);
		$data['grid_4char_confirmed'] = js_array($array_confirmed_grid_4char);
		$data['grid_6char_confirmed'] = js_array($array_confirmed_grid_6char);

		$data['grid_2char'] = js_array($array_grid_2char);
		$data['grid_4char'] = js_array($array_grid_4char);
		$data['grid_6char'] = js_array($array_grid_6char);

		$data['layer'] = $this->optionslib->get_option('option_map_tile_server');
		$data['attribution'] = $this->optionslib->get_option('option_map_tile_server_copyright');

		$data['gridsquares_gridsquares'] = lang('gridsquares_gridsquares');
		$data['gridsquares_gridsquares_confirmed'] = lang('gridsquares_gridsquares_confirmed');
		$data['gridsquares_gridsquares_not_confirmed'] = lang('gridsquares_gridsquares_not_confirmed');
		$data['gridsquares_gridsquares_total_worked'] = lang('gridsquares_gridsquares_total_worked');

		$data['visitor'] = true;

		$this->load->view('visitor/layout/header', $data);
		$this->load->view('gridmap/index', $data);
		$this->load->view('visitor/layout/footer');
	}

	public function oqrs_enabled($slug) {
		$this->load->model('oqrs_model');
		$this->load->model('Logbooks_model');
		$logbook_id = $this->Logbooks_model->public_slug_exists_logbook_id($slug);
		if (!empty($this->oqrs_model->getOqrsStationsFromSlug($logbook_id))) {
			return true;
		} else {
			return false;
		}
	}

	public function public_search_enabled($slug) {
		$this->load->model('Logbooks_model');
		$logbook_id = $this->Logbooks_model->public_slug_exists_logbook_id($slug);
		if ($this->Logbooks_model->public_search_enabled($logbook_id)  == 1) {
			return true;
		} else {
			return false;
		}
	}

	public function search() {
		$callsign = trim($this->security->xss_clean($this->input->post('callsign')));
		$public_slug = $this->security->xss_clean($this->input->post('public_slug'));
		$this->load->model('publicsearch');
		$data['page_title'] = "Public Search";
		$data['callsign'] = $callsign;
		$data['slug'] = $public_slug;
		if ($callsign != '') {
			$result = $this->publicsearch->search($public_slug, $callsign);
		}
		if (!empty($result) && $result->num_rows() > 0) {
			$data['results'] = $result;
			$this->load->view('visitor/layout/header', $data);
			$this->load->view('public_search/result.php', $data);
			$this->load->view('visitor/layout/footer');
		} else {
			$this->load->view('visitor/layout/header', $data);
			$this->load->view('public_search/empty.php', $data);
			$this->load->view('visitor/layout/footer');
		}
	}

	public function getGridsjs()
	{
		$slug = $this->security->xss_clean($this->input->post('slug'));
		$band = $this->security->xss_clean($this->input->post('band'));
		$mode = $this->security->xss_clean($this->input->post('mode')); 
		$sat = $this->security->xss_clean($this->input->post('sat'));

		if (!$slug) {
			header('Content-Type: application/json');
			echo json_encode(array('error' => 'No slug provided'));
			return;
		}

		$this->load->model('logbooks_model');
		if(!$this->logbooks_model->public_slug_exists($slug)) {
			header('Content-Type: application/json');
			echo json_encode(array('error' => 'Invalid slug'));
			return;
		}

		$logbook_id = $this->logbooks_model->public_slug_exists_logbook_id($slug);
		if($logbook_id == false) {
			header('Content-Type: application/json');
			echo json_encode(array('error' => 'Invalid logbook'));
			return;
		}

		// Get associated station locations for mysql queries
		$logbooks_locations_array = $this->logbooks_model->list_logbook_relationships($logbook_id);

		if (!$logbooks_locations_array) {
			header('Content-Type: application/json');
			echo json_encode(array('error' => 'No station locations'));
			return;
		}

		$this->load->model('gridmap_model');

		$array_grid_2char = array();
		$array_grid_4char = array();
		$array_grid_6char = array();

		$array_grid_2char_confirmed = array();
		$array_grid_4char_confirmed = array();
		$array_grid_6char_confirmed = array();

		// For public visitor, we don't show QSL confirmations, so set all to false
		$query = $this->gridmap_model->get_band_confirmed($band, $mode, 'false', 'false', 'false', 'false', $sat, $logbooks_locations_array);

		if ($query && $query->num_rows() > 0) {
			foreach ($query->result() as $row) 	{
				$grid_2char_confirmed = strtoupper(substr($row->GRID_SQUARES,0,2));
				$grid_4char_confirmed = strtoupper(substr($row->GRID_SQUARES,0,4));
				$grid_6char_confirmed = strtoupper(substr($row->GRID_SQUARES,0,6));

				// Check if 2 Char is in array
				if(!in_array($grid_2char_confirmed, $array_grid_2char_confirmed)){
					array_push($array_grid_2char_confirmed, $grid_2char_confirmed);	
				}

				if(!in_array($grid_4char_confirmed, $array_grid_4char_confirmed)){
					array_push($array_grid_4char_confirmed, $grid_4char_confirmed);	
				}

				if(!in_array($grid_6char_confirmed, $array_grid_6char_confirmed)){
					array_push($array_grid_6char_confirmed, $grid_6char_confirmed);	
				}
			}
		}

		$query = $this->gridmap_model->get_band($band, $mode, 'false', 'false', 'false', 'false', $sat, $logbooks_locations_array);

		if ($query && $query->num_rows() > 0) {
			foreach ($query->result() as $row) {

				$grid_two = strtoupper(substr($row->GRID_SQUARES,0,2));
				$grid_four = strtoupper(substr($row->GRID_SQUARES,0,4));
				$grid_six = strtoupper(substr($row->GRID_SQUARES,0,6));

				// Check if 2 Char is in array
				if(!in_array($grid_two, $array_grid_2char)){
					array_push($array_grid_2char, $grid_two);	
				}

				if(!in_array($grid_four, $array_grid_4char)){
					array_push($array_grid_4char, $grid_four);	
				}
				
				if(!in_array($grid_six, $array_grid_6char)){
					array_push($array_grid_6char, $grid_six);	
				}

			}
		}
		$query_vucc = $this->gridmap_model->get_band_worked_vucc_squares($band, $mode, 'false', 'false', 'false', 'false', $sat, $logbooks_locations_array);

		if ($query_vucc && $query_vucc->num_rows() > 0) {
			foreach ($query_vucc->result() as $row) {

				$grids = explode(",", $row->COL_VUCC_GRIDS);

				foreach($grids as $key) {    
					$grid_two = strtoupper(substr($key,0,2));
					$grid_four = strtoupper(substr($key,0,4));

					// Check if 2 Char is in array
					if(!in_array($grid_two, $array_grid_2char)){
						array_push($array_grid_2char, $grid_two);	
					}


					if(!in_array($grid_four, $array_grid_4char)){
						array_push($array_grid_4char, $grid_four);	
					}
				}
			}
		}

		// // Confirmed Squares
		$query_vucc = $this->gridmap_model->get_band_confirmed_vucc_squares($band, $mode, 'false', 'false', 'false', 'false', $sat, $logbooks_locations_array);

		if ($query_vucc && $query_vucc->num_rows() > 0) {
			foreach ($query_vucc->result() as $row) 			{

				$grids = explode(",", $row->COL_VUCC_GRIDS);

				foreach($grids as $key) {    
					$grid_2char_confirmed = strtoupper(substr($key,0,2));
					$grid_4char_confirmed = strtoupper(substr($key,0,4));

					// Check if 2 Char is in array
					if(!in_array($grid_2char_confirmed, $array_grid_2char_confirmed)){
						array_push($array_grid_2char_confirmed, $grid_2char_confirmed);	
					}


					if(!in_array($grid_4char_confirmed, $array_grid_4char_confirmed)){
						array_push($array_grid_4char_confirmed, $grid_4char_confirmed);	
					}
				}
			}
		}

		$data['grid_2char_confirmed'] = ($array_grid_2char_confirmed);
		$data['grid_4char_confirmed'] = ($array_grid_4char_confirmed);
		$data['grid_6char_confirmed'] = ($array_grid_6char_confirmed);

		$data['grid_2char'] = ($array_grid_2char);
		$data['grid_4char'] = ($array_grid_4char);
		$data['grid_6char'] = ($array_grid_6char);

		header('Content-Type: application/json');
		echo json_encode($data);
	}

}
