<?php

class DXCC extends CI_Model {

	function __construct() {
		if(!$this->load->is_loaded('Genfunctions')) {
			$this->load->library('Genfunctions');
		}
	}

	/**
	 *	Function: mostactive
	 *	Information: Returns the most active band
	 **/
	function info($callsign) {
		$exceptions = $this->db->query('
				SELECT *
				FROM `dxcc_exceptions`
				WHERE `prefix` = ?
				LIMIT 1
			',array($callsign));

		if ($exceptions->num_rows() > 0) {
			return $exceptions;
		} else {
			$query = $this->db->query('
					SELECT *
					FROM dxcc_entities
					WHERE prefix = SUBSTRING(?, 1, LENGTH( prefix ) )
					ORDER BY LENGTH( prefix ) DESC
					LIMIT 1
				',array($callsign));

			return $query;
		}
	}

	/*
	 * Fetches a list of all dxcc's, both current and deleted
	 */
	function list() {
		$this->db->order_by('name', 'ASC');
		return $this->db->get('dxcc_entities');
	}

	/*
	 * Fetches a list of all current dxcc's (non-deleted)
	 */
	function list_current($orderer = 'name') {
		$this->db->where('end', null);
		$this->db->where('adif !=', 0);

		if ($orderer == 'name') {
			$this->db->order_by('name', 'ASC');
		} elseif ($orderer == 'prefix') {
			$this->db->order_by('prefix', 'ASC');
		}
		return $this->db->get('dxcc_entities');
	}

	function get_dxcc_array($dxccArray, $bands, $postdata) {
		$this->load->model('logbooks_model');
		$logbooks_locations_array = $this->logbooks_model->list_logbook_relationships($this->session->userdata('active_station_logbook'));

		if (!$logbooks_locations_array) {
			return null;
		}

		$location_list = "'".implode("','",$logbooks_locations_array)."'";

		$qsl = $this->genfunctions->gen_qsl_from_postdata($postdata);

		foreach ($bands as $band) {             	// Looping through bands and entities to generate the array needed for display
			if (($postdata['band'] != 'SAT') && ($band == 'SAT')) {
				continue;
			}
			foreach ($dxccArray as $dxcc) {
				if ($dxcc->adif == '0') {
					$dxccMatrix[$dxcc->adif]['name'] = $dxcc->name;
				} else {
					$dxccMatrix[$dxcc->adif]['name'] = ucwords(strtolower($dxcc->name), "- (/");
				}
				$dxccMatrix[$dxcc->adif]['Dxccprefix'] = $dxcc->prefix;
				if ($postdata['includedeleted'])
					$dxccMatrix[$dxcc->adif]['Deleted'] = isset($dxcc->Enddate) ? 1 : 0;
				$dxccMatrix[$dxcc->adif][$band] = '-';
			}

			// If worked is checked, we add worked entities to the array
			if ($postdata['worked'] != NULL) {
				$workedDXCC = $this->getDxccBandWorked($location_list, $band, $postdata);
				foreach ($workedDXCC as $wdxcc) {
					$dxccMatrix[$wdxcc->dxcc][$band] = '<div class="bg-danger awardsBgDanger" ><a href=\'javascript:displayContacts("'.$wdxcc->dxcc.'","'. $band . '","'. $postdata['sat'] . '","' . $postdata['orbit'] . '","'. $postdata['mode'] . '","DXCC2", "")\'>W</a></div>';
				}
			}

			// If confirmed is checked, we add confirmed entities to the array
			if ($postdata['confirmed'] != NULL) {
				$confirmedDXCC = $this->getDxccBandConfirmed($location_list, $band, $postdata);
				foreach ($confirmedDXCC as $cdxcc) {
					$dxccMatrix[$cdxcc->dxcc][$band] = '<div class="bg-success awardsBgSuccess"><a href=\'javascript:displayContacts("'.$cdxcc->dxcc.'","'. $band . '","'. $postdata['sat'] . '","'. $postdata['orbit'] . '","' . $postdata['mode'] . '","DXCC2","'.$qsl.'")\'>C</a></div>';
				}
			}
		}

		// We want to remove the worked dxcc's in the list, since we do not want to display them
		if ($postdata['worked'] == NULL) {
			$workedDxcc = $this->getDxccWorked($location_list, $postdata);
			foreach ($workedDxcc as $wdxcc) {
				if (array_key_exists($wdxcc->dxcc, $dxccMatrix)) {
					unset($dxccMatrix[$wdxcc->dxcc]);
				}
			}
		}

		// We want to remove the confirmed dxcc's in the list, since we do not want to display them
		if ($postdata['confirmed'] == NULL) {
			$confirmedDxcc = $this->getDxccConfirmed($location_list, $postdata);
			foreach ($confirmedDxcc as $cdxcc) {
				if (array_key_exists($cdxcc->dxcc, $dxccMatrix)) {
					unset($dxccMatrix[$cdxcc->dxcc]);
				}
			}
		}

		if (isset($dxccMatrix)) {
			return $dxccMatrix;
		} else {
			return 0;
		}
	}

	function getDxccBandConfirmed($location_list, $band, $postdata) {
		$bindings=[];
		$sql = "select adif as dxcc, name from dxcc_entities
				join (
					select col_dxcc from ".$this->config->item('table_name')." thcv
					LEFT JOIN satellite on thcv.COL_SAT_NAME = satellite.name
					where station_id in (" . $location_list .
				  ") and col_dxcc > 0";

		$sql .= $this->genfunctions->addBandToQuery($band,$bindings);
		if ($band == 'SAT') {
			$sql .= " and col_prop_mode='SAT'";
			if ($postdata['sat'] != 'All') {
				$sql .= " and col_sat_name = ?";
				$bindings[]=$postdata['sat'];
			}
		} else {
			$sql.=" and (col_prop_mode!='SAT' or col_prop_mode is null)";
		}

		if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
		}

		$sql .= $this->addOrbitToQuery($postdata,$bindings);

		$sql .= $this->genfunctions->addQslToQuery($postdata);

		$sql .= " group by col_dxcc
				) x on dxcc_entities.adif = x.col_dxcc";

		if ($postdata['includedeleted'] == NULL) {
			$sql .= " and dxcc_entities.end is null";
		}

		$sql .= $this->addContinentsToQuery($postdata);

		$query = $this->db->query($sql,$bindings);

		return $query->result();
	}

	function getDxccBandWorked($location_list, $band, $postdata) {
		$bindings=[];
		$sql = "select adif as dxcc, name from dxcc_entities
				join (
					select col_dxcc from ".$this->config->item('table_name')." thcv
					LEFT JOIN satellite on thcv.COL_SAT_NAME = satellite.name
					where station_id in (" . $location_list .
					") and col_dxcc > 0";
		$sql .= $this->genfunctions->addBandToQuery($band,$bindings);
		if ($band == 'SAT') {
			$sql .= " and col_prop_mode ='SAT'";
			if ($postdata['sat'] != 'All') {
				$sql .= " and col_sat_name = ?";
				$bindings[]=$postdata['sat'];
			}
		} else {
			$sql.=" and (col_prop_mode != 'SAT' or col_prop_mode is null)";
		}

		if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
		}
		$sql .= $this->addOrbitToQuery($postdata,$bindings);

		$sql .= " group by col_dxcc
				) x on dxcc_entities.adif = x.col_dxcc";;
		if ($postdata['includedeleted'] == NULL) {
			$sql .= " and dxcc_entities.end is null";
		}
		$sql .= $this->addContinentsToQuery($postdata);

		$query = $this->db->query($sql,$bindings);
		return $query->result();
	}

	function fetchDxcc($postdata) {
		$bindings=[];
		$this->load->model('logbooks_model');
		$logbooks_locations_array = $this->logbooks_model->list_logbook_relationships($this->session->userdata('active_station_logbook'));

		if (!$logbooks_locations_array) {
			return null;
		}

		$location_list = "'".implode("','",$logbooks_locations_array)."'";

		$sql = "select adif, prefix, name, date(end) Enddate, date(start) Startdate, lat, `long`
			from dxcc_entities";

		if ($postdata['notworked'] == NULL) {
			$sql .= " join (select col_dxcc from " . $this->config->item('table_name') . " thcv
			LEFT JOIN satellite on thcv.COL_SAT_NAME = satellite.name
			where station_id in (" . $location_list . ") and col_dxcc > 0";

			if ($postdata['band'] != 'All') {
				if ($postdata['band'] == 'SAT') {
					$sql .= " and col_prop_mode = ?";
					$bindings[]=$postdata['band'];
					if ($postdata['sat'] != 'All') {
						$sql .= " and col_sat_name = ?";
						$bindings[]=$postdata['sat'];
					}
				} else {
					$sql .= " and col_prop_mode !='SAT'";
					$sql .= " and col_band = ?";
					$bindings[]=$postdata['band'];
				}
			} else {
				$sql.=" and (col_prop_mode != 'SAT' or col_prop_mode is null)";
			}

			if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
			}

			$sql .= $this->addOrbitToQuery($postdata, $bindings);

			$sql .= ' group by col_dxcc) x on dxcc_entities.adif = x.col_dxcc';
		}

		$sql .= " where 1 = 1";

		if ($postdata['includedeleted'] == NULL) {
			$sql .= " and end is null";
		}

		$sql .= $this->addContinentsToQuery($postdata);

		$sql .= ' order by prefix';
		$query = $this->db->query($sql,$bindings);

		return $query->result();
	}

	function getDxccWorked($location_list, $postdata) {
		$bindings=[];
		$sql = "SELECT adif as dxcc FROM dxcc_entities
			join (
				select col_dxcc
				from ".$this->config->item('table_name')." thcv
				LEFT JOIN satellite on thcv.COL_SAT_NAME = satellite.name
				where station_id in (" . $location_list .
				") and col_dxcc > 0";
		$sql .= $this->genfunctions->addBandToQuery($postdata['band'],$bindings);
		if ($postdata['band'] == 'SAT') {
			$sql .= " and col_prop_mode = 'SAT'";
			if ($postdata['sat'] != 'All') {
				$sql .= " and col_sat_name = ?";
				$bindings[]=$postdata['sat'];
			}
			$sql .= $this->addOrbitToQuery($postdata,$bindings);
		} else {
			$sql.=" and (col_prop_mode != 'SAT' or col_prop_mode is null)";
		}


		if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
		}

		$sql .= " and not exists (select 1 from ".$this->config->item('table_name')." where station_id in (". $location_list .") and col_dxcc = thcv.col_dxcc and col_dxcc > 0";
		$sql .= $this->genfunctions->addBandToQuery($postdata['band'],$bindings);
		if ($postdata['band'] == 'SAT') {
			$sql .= " and col_prop_mode = 'SAT'";
			if ($postdata['sat'] != 'All') {
				$sql .= " and col_sat_name = ?";
				$bindings[]=$postdata['sat'];
			}
			$sql .= $this->addOrbitToQuery($postdata,$bindings);
		} else {
			$sql.=" and (col_prop_mode != 'SAT' or col_prop_mode is null)";
		}


		if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
		}

		$sql .= $this->genfunctions->addQslToQuery($postdata);
		$sql .= ')';
		$sql .= " group by col_dxcc
	    ) ll on dxcc_entities.adif = ll.col_dxcc
	    where 1=1";

		if ($postdata['includedeleted'] == NULL) {
			$sql .= " and dxcc_entities.end is null";
		}

		$sql .= $this->addContinentsToQuery($postdata);
		$query = $this->db->query($sql,$bindings);
		return $query->result();
	}

	function getDxccConfirmed($location_list, $postdata) {
		$bindings=[];
		$sql = "SELECT adif as dxcc FROM dxcc_entities
	    join (
		select col_dxcc
		from ".$this->config->item('table_name')." thcv
		LEFT JOIN satellite on thcv.COL_SAT_NAME = satellite.name
		where station_id in (". $location_list .
		    ") and col_dxcc > 0";

		$sql .= $this->genfunctions->addBandToQuery($postdata['band'],$bindings);
		if ($postdata['band'] == 'SAT') {
			$sql .= " and col_prop_mode = 'SAT'";
			if ($postdata['sat'] != 'All') {
				$sql .= " and col_sat_name = ?";
				$bindings[]=$postdata['sat'];
			}
		} else {
			$sql.=" and (col_prop_mode != 'SAT' or col_prop_mode is null)";
		}

		if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
		}

		$sql .= $this->addOrbitToQuery($postdata,$bindings);

		$sql .= $this->genfunctions->addQslToQuery($postdata);

		$sql .= " group by col_dxcc
	    ) ll on dxcc_entities.adif = ll.col_dxcc
	    where 1=1";

		if ($postdata['includedeleted'] == NULL) {
			$sql .= " and dxcc_entities.end is null";
		}

		$sql .= $this->addContinentsToQuery($postdata);


		$query = $this->db->query($sql,$bindings);

		return $query->result();
	}

	// Made function instead of repeating this several times
	function addContinentsToQuery($postdata) {
		$sql = '';
		if ($postdata['Africa'] == NULL) {
			$sql .= " and cont <> 'AF'";
		}

		if ($postdata['Europe'] == NULL) {
			$sql .= " and cont <> 'EU'";
		}

		if ($postdata['Asia'] == NULL) {
			$sql .= " and cont <> 'AS'";
		}

		if ($postdata['SouthAmerica'] == NULL) {
			$sql .= " and cont <> 'SA'";
		}

		if ($postdata['NorthAmerica'] == NULL) {
			$sql .= " and cont <> 'NA'";
		}

		if ($postdata['Oceania'] == NULL) {
			$sql .= " and cont <> 'OC'";
		}

		if ($postdata['Antarctica'] == NULL) {
			$sql .= " and cont <> 'AN'";
		}
		return $sql;
	}

	/*
     * Function gets worked and confirmed summary on each band on the active stationprofile
     */
	function get_dxcc_summary($bands, $postdata) {
		$CI =& get_instance();
		$CI->load->model('logbooks_model');
		$logbooks_locations_array = $CI->logbooks_model->list_logbook_relationships($this->session->userdata('active_station_logbook'));

		if (!$logbooks_locations_array) {
			return null;
		}

		$location_list = "'".implode("','",$logbooks_locations_array)."'";

		foreach ($bands as $band) {
			$worked = $this->getSummaryByBand($band, $postdata, $location_list);
			$confirmed = $this->getSummaryByBandConfirmed($band, $postdata, $location_list);
			$dxccSummary['worked'][$band] = $worked[0]->count;
			$dxccSummary['confirmed'][$band] = $confirmed[0]->count;
		}

		$workedTotal = $this->getSummaryByBand($postdata['band'], $postdata, $location_list);
		$confirmedTotal = $this->getSummaryByBandConfirmed($postdata['band'], $postdata, $location_list);

		$dxccSummary['worked']['Total'] = $workedTotal[0]->count;
		$dxccSummary['confirmed']['Total'] = $confirmedTotal[0]->count;

		return $dxccSummary;
	}

	function getSummaryByBand($band, $postdata, $location_list) {
		$bindings=[];
		$sql = "SELECT count(distinct thcv.col_dxcc) as count FROM " . $this->config->item('table_name') . " thcv";
		$sql .= " LEFT JOIN satellite on thcv.COL_SAT_NAME = satellite.name";
		$sql .= " join dxcc_entities d on thcv.col_dxcc = d.adif";

		$sql .= " where station_id in (" . $location_list . ") and col_dxcc > 0";

		if ($band == 'SAT') {
			$sql .= " and thcv.col_prop_mode ='" . $band . "'";
			if ($band != 'All' && $postdata['sat'] != 'All') {
				$sql .= " and col_sat_name = ?";
				$bindings[]=$postdata['sat'];
			}
		} else if ($band == 'All') {
			$this->load->model('bands');

			$bandslots = $this->bands->get_worked_bands('dxcc');

			$bandslots_list = "'".implode("','",$bandslots)."'";

			$sql .= " and thcv.col_band in (" . $bandslots_list . ")" .
				" and thcv.col_prop_mode !='SAT'";
		} else {
			$sql .= " and thcv.col_prop_mode !='SAT'";
			$sql .= " and thcv.col_band = ?";
			$bindings[]=$band;
		}

		if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
		}

		if ($postdata['includedeleted'] == NULL) {
			$sql .= " and d.end is null";
		}

		$sql .= $this->addContinentsToQuery($postdata);

		$sql .= $this->addOrbitToQuery($postdata,$bindings);

		$query = $this->db->query($sql,$bindings);

		return $query->result();
	}

	// Adds orbit type to query
	function addOrbitToQuery($postdata,&$binding) {
		$sql = '';
		if ($postdata['orbit'] != 'All') {
			$sql .= ' AND satellite.orbit = ?';
			$binding[]=$postdata['orbit'];
		}

		return $sql;
	}

	function getSummaryByBandConfirmed($band, $postdata, $location_list) {
		$bindings=[];
		$sql = "SELECT count(distinct thcv.col_dxcc) as count FROM " . $this->config->item('table_name') . " thcv";
		$sql .= " LEFT JOIN satellite on thcv.COL_SAT_NAME = satellite.name";
		$sql .= " join dxcc_entities d on thcv.col_dxcc = d.adif";

		$sql .= " where station_id in (" . $location_list . ") and col_dxcc > 0";

		if ($band == 'SAT') {
			$sql .= " and thcv.col_prop_mode = ?";
			$bindings[]=$band;
			if ($postdata['sat'] != 'All') {
				$sql .= " and col_sat_name = ?";
				$bindings[]=$postdata['sat'];
			}
		} else if ($band == 'All') {
			$this->load->model('bands');

			$bandslots = $this->bands->get_worked_bands('dxcc');

			$bandslots_list = "'".implode("','",$bandslots)."'";

			$sql .= " and thcv.col_band in (" . $bandslots_list . ")" .
				" and thcv.col_prop_mode !='SAT'";
		} else {
			$sql .= " and thcv.col_prop_mode !='SAT'";
			$sql .= " and thcv.col_band = ?";
			$bindings[]=$band;
		}

		if ($postdata['mode'] != 'All') {
			$sql .= " and (col_mode = ? or col_submode = ?)";
			$bindings[]=$postdata['mode'];
			$bindings[]=$postdata['mode'];
		}

		$sql .= $this->genfunctions->addQslToQuery($postdata);

		$sql .= $this->addOrbitToQuery($postdata,$bindings);


		if ($postdata['includedeleted'] == NULL) {
			$sql .= " and d.end is null";
		}

		$sql .= $this->addContinentsToQuery($postdata);

		$query = $this->db->query($sql,$bindings);

		return $query->result();
	}

	function lookup_country($country) {
		$bindings=[];
		$query = $this->db->query('
					SELECT *
					FROM dxcc_entities
					WHERE name = ?
					ORDER BY LENGTH( prefix ) DESC
					LIMIT 1
				',array($country));

		return $query->row();
	}
}
?>