<?php
/**
* @copyright (C) 2013 iJoomla, Inc. - All rights reserved.
* @license GNU General Public License, version 2 (http://www.gnu.org/licenses/gpl-2.0.html)
* @author iJoomla.com <webmaster@ijoomla.com>
* @url https://www.jomsocial.com/license-agreement
* The PHP code portions are distributed under the GPL license. If not otherwise stated, all images, manuals, cascading style sheets, and included JavaScript *are NOT GPL, and are released under the IJOOMLA Proprietary Use License v1.0
* More info at https://www.jomsocial.com/license-agreement
*/
// no direct access
defined('_JEXEC') or die('Restricted access');

require_once( JPATH_ROOT .'/components/com_community/libraries/core.php');

if(!class_exists('plgCommunityMyFriendsLocation'))
{
	class plgCommunityMyFriendsLocation extends CApplications
	{
		var $_user		= null;
		var $name		= "Friend's Location";
		var $_name 		= 'myfriendslocation';

	    function __construct(& $subject, $config)
		{
			$this->_user	= CFactory::getRequestUser();
			parent::__construct($subject, $config);
	    }

		private function _getLocationFieldId($town_field_code, $state_field_code, $country_field_code, $address_field_code, $zip_field_code)
		{
			$db = JFactory::getDBO();
			$sql = "SELECT
							".$db->quoteName("fieldcode").",
							".$db->quoteName("id")."
					FROM
							".$db->quoteName("#__community_fields")."
					WHERE
							".$db->quoteName("id")." IN (".$db->Quote($town_field_code).", ".$db->Quote($state_field_code).", ".$db->Quote($address_field_code).", ".$db->Quote($zip_field_code).", ".$db->Quote($country_field_code).")";

            $db->setQuery($sql);
			$row = $db->loadObjectList();

			return $row;
		}

		private function _getFriends($userid, $limit)
		{
			$db = JFactory::getDBO();

			$query	= 'SELECT ' . $db->quoteName( 'connect_from' ) . ' AS ids '
					. 'FROM ' . $db->quoteName( '#__community_connection' ) . ' '
					. 'WHERE ' . $db->quoteName( 'connect_to' ) . '=' . $db->Quote( $userid ) . ' '
					. 'AND ' . $db->quoteName( 'status' ) . '=' . $db->Quote( 1 );

			if($limit != 0)
			{
				$query .=" LIMIT ".$limit;
			}

			$db->setQuery($query);

			$friends	= $db->loadColumn();

			$result		= array();
			$my			= CFactory::getUser();
			$model		= CFactory::getModel( 'Friends' );
			$userFriends	= $model->getFriendIds( $userid );

			foreach( $friends as $friendId )
			{
				$user	= CFactory::getUser( $friendId );
				$params	= $user->getParams();
				$privacy	= $params->get( 'privacyProfileView' );

				if( $my->id == $userid )
				{
					$result[]	= $friendId;
				}

				if( $privacy == 0 )
				{
					$result[]	= $friendId;
				}
				else if( $privacy == 20 && $my->id != 0 )
				{
					$result[]	= $friendId;
				}
				else if( $privacy == 30 && in_array( $my->id , $userFriends ) )
				{
					$result[]	= $friendId;
				}
			}

			return array_unique($result);
		}


		/**
		 *
		 */
		private function _getFriendsLocation($friends, $town_field_id, $state_field_id, $country_field_id, $zip_field_id, $address_field_id, $show_karma)
		{
			require_once( JPATH_ROOT .'/components/com_community/libraries/core.php');

			$db = JFactory::getDBO();
			$friends_id = implode(',', $friends);

			$sql = 'SELECT 	a.'.$db->quoteName('user_id').',
				      		a.'.$db->quoteName('value').' AS country,
				      		b.'.$db->quoteName('value').' AS state,
							c.'.$db->quoteName('value').'	AS town,
							d.'.$db->quoteName('value').'	AS address,
							e.'.$db->quoteName('value').'	AS zip'
				    .' FROM '.$db->quoteName('#__community_fields_values').' AS a'
				    .' LEFT JOIN '.$db->quoteName('#__community_fields_values').' AS b'
				    .' ON a.'.$db->quoteName('user_id').'=b.'.$db->quoteName('user_id').' AND b.'.$db->quoteName('field_id').' = '.$db->Quote($state_field_id)
				    .' LEFT JOIN '.$db->quoteName('#__community_fields_values').' AS c'
				    .' ON a.'.$db->quoteName('user_id').'=c.'.$db->quoteName('user_id').' AND c.'.$db->quoteName('field_id').' = '.$db->Quote($town_field_id)
                    .' LEFT JOIN '.$db->quoteName('#__community_fields_values').' AS d'
                    .' ON a.'.$db->quoteName('user_id').'=d.'.$db->quoteName('user_id').' AND d.'.$db->quoteName('field_id').' = '.$db->Quote($address_field_id)
                    .' LEFT JOIN '.$db->quoteName('#__community_fields_values').' AS e'
                    .' ON a.'.$db->quoteName('user_id').'=e.'.$db->quoteName('user_id').' AND e.'.$db->quoteName('field_id').' = '.$db->Quote($zip_field_id);

			// check if only using google location field as full address
            if ($country_field_id > 0)
                $sql .= ' WHERE a.' . $db->quoteName('field_id') . ' = ' . $db->Quote($country_field_id);
            else
                $sql .= ' WHERE a.' . $db->quoteName('field_id') . ' = ' . $db->Quote($address_field_id);

            $sql .= ' AND	a.'.$db->quoteName('user_id').' IN ('.$friends_id.')';

			$db->setQuery($sql);
			$row = $db->loadObjectList();

			// preload all users
			$CFactoryMethod = get_class_methods('CFactory');
			if(in_array('loadUsers', $CFactoryMethod))
			{
				$uids = array();
				foreach($row as $m)
				{
					$uids[] = $m->user_id;
				}
				CFactory::loadUsers($uids);
			}

			$location =  new stdClass();
			foreach($row as $data){
				$user = CFactory::getUser($data->user_id);
				$address = $data->address;
				$town = JText::_($data->town);
				$state = JText::_($data->state);
				$country = JText::_($data->country);
				$zip = $data->zip;

				$fullAddress = array();
                
                foreach (array($address, $town, $state, $country, $zip) as $value) {
					if (!empty($value)) {
						if (strpos($value, '"name":') !== FALSE || strpos($value, '"desc":') !== FALSE) {  // JSON-encoded location
							$value = json_decode($value);
							if (!empty($value->name)) {
								array_push($fullAddress, $value->name);
							}
							if (!empty($value->desc)) {
								$fullAddress = array_merge($fullAddress, explode(", ", $value->desc));
							}
						} else {
							array_push($fullAddress, $value);
						}
					}
				}

				$fullAddress = implode(", ", array_unique($fullAddress));

				if(empty($fullAddress)){
					continue;
				}

				$location->{$fullAddress} = new stdClass();
				$location->{$fullAddress}->{$data->user_id} = new stdClass();
				$location->{$fullAddress}->{$data->user_id}->username = $user->getDisplayName();
				$location->{$fullAddress}->{$data->user_id}->avatar = $user->getThumbAvatar();
				$location->{$fullAddress}->{$data->user_id}->link = CRoute::_('index.php?option=com_community&view=profile&userid='.$data->user_id);

				switch($show_karma){
					case 1:
						$location->{$fullAddress}->{$data->user_id}->karma_points = "<div><img src='".CUserPoints::getPointsImage($user)."' alt=''/></div>";
						break;
					case 2:
						$location->{$fullAddress}->{$data->user_id}->karma_points = "<div><small>".JText::_('MOD_TOPMEMBERS_POINTS').": ".$user->_points."</small></div>";
						break;
					default :
						$location->{$fullAddress}->{$data->user_id}->karma_points = "<div></div>";
				}
			}
			return $location;
		}

	 	/**
	 	 *
	 	 */
		function onProfileDisplay()
		{
			JPlugin::loadLanguage( 'plg_community_myfriendslocation', JPATH_ADMINISTRATOR );
            $lang = JFactory::getLanguage();
            $lang->load('com_community.country');

			$config	= CFactory::getConfig();

			// Attach CSS
			$document	= JFactory::getDocument();
			$css		= JURI::base() . 'plugins/community/myfriendslocation/myfriendslocation/style.css';
			$document->addStyleSheet($css);

            $user = CFactory::getRequestUser();
            $userid = $user->id;
            $def_limit 		= $this->params->get('count', 0);
			$mapkey 		= $this->params->get('mapkey', '');
			$width 			= $this->params->get('width', '480');		// @todo: remove
			$height 		= $this->params->get('height', '340');

			$show_karma = 0;
			if($config->get('enablekarma'))
			{
				$show_karma = $this->params->get('show_karma', '1');
			}

			$mouse_scroll_zoom = $this->params->get('mouse_scroll_zoom', '1');
			$continuous_zoom = $this->params->get('continuous_zoom', '1');

            $address_field_id = $this->params->get("address_field_code");
            $zip_field_id = $this->params->get("zip_field_code");
            $town_field_id = $this->params->get("town_field_code");
            $state_field_id = $this->params->get("state_field_code");
            $country_field_id = $this->params->get("country_field_code");

			if(!empty($town_field_id) || !empty($state_field_id) || !empty($country_field_id) || !empty($zip_field_id) || !empty($address_field_id)){

				$mainframe = JFactory::getApplication();
				$caching = $this->params->get('cache', 1);
				if($caching)
				{
					$caching = $mainframe->getCfg('caching');
				}

				$layout = $this->getLayout();

				$cache = JFactory::getCache('plgCommunityMyFriendsLocation');
				$cache->setCaching($caching);
				$content = $this->_getFriendsLocationHTML($mapkey, $width, $height, $show_karma, $town_field_id, $state_field_id, $country_field_id, $zip_field_id, $address_field_id,$userid, $def_limit, $layout);

			} else {
				$content = "<div>".JText::_("PLG_COMMUNITY_MYFRIENDSLOCATION_FIELD_CODE_NOT_FOUND")."</div>";
			}

			return $content;
		}

		private function osm_script($addr) {
            $script = '
			    	var geocoder = null;
			    	var map = null;
			    	var bounds = null;
			    	var baseIcon = null;
				';
            $zoom = $this->params->get("zoom", 5);

            $config = CFactory::getConfig();
            $apikey = $config->get('googleapikey');



            // Ourput the list of address
            $script.='var address = ' . $addr . ';';
            $script.='var zoom = ' . $zoom . ';';
            $script .='
				function plgFriendsLocLoadOMS() {
				    var timer = setInterval(function () {
				        clearInterval(timer);
				        plgFriendsLocInitializeMap();
				    }, 500);
				}
				window.joms_queue || (window.joms_queue = []);
				window.joms_queue.push(function () {
				    joms.jQuery(function () {
				        var script = document.createElement("script");
				        script.type = "text/javascript";
				        script.src = "https://unpkg.com/leaflet@1.3.4/dist/leaflet.js";
						script = document.createElement("script");
				        script.type = "text/javascript";
				        script.src = "https://unpkg.com/leaflet.markercluster@1.4.1/dist/leaflet.markercluster-src.js";
						
				        jQuery("<link>")
				                .appendTo("head")
				                .attr({
				                    type: "text/css",
				                    rel: "stylesheet",
				                            href: "https://unpkg.com/leaflet@1.3.4/dist/leaflet.css"
				                });
					     jQuery("<link>")
				                .appendTo("head")
				                .attr({
				                    type: "text/css",
				                    rel: "stylesheet",
				                            href: "https://unpkg.com/leaflet.markercluster@1.4.1/dist/MarkerCluster.css"
				                });
						 jQuery("<link>")
				                .appendTo("head")
				                .attr({
				                    type: "text/css",
				                    rel: "stylesheet",
				                            href: "https://unpkg.com/leaflet.markercluster@1.4.1/dist/MarkerCluster.Default.css"
				                });	
								
				        var canvas = joms.jQuery("#floc_map_canvas");
				        var timer = setInterval(function () {
				            if (canvas.is(":visible")) {
				                clearInterval(timer);
				                plgFriendsLocLoadScript();
				            }
				        }, 1000);
				    });
				});
			';

            $document = JFactory::getDocument();
            $document->addScriptDeclaration($script);
			
			$document->addScript("https://unpkg.com/leaflet@1.3.4/dist/leaflet.js");
			$document->addScript("https://unpkg.com/leaflet.markercluster@1.4.1/dist/leaflet.markercluster-src.js");

            $document->addScript(JURI::root(true) . '/plugins/community/myfriendslocation/oms.min.js');
            $document->addScript(JURI::root(true) . '/plugins/community/myfriendslocation/osm-plg.js');
        }

		private function google_script($addr, $apikey) {
            $script = '
			    	var geocoder = null;
			    	var map = null;
			    	var bounds = null;
			    	var baseIcon = null;
				';

            $script.='var address = '. $addr . ';';
            $script .='

                function plgFriendsLocLoadScript() {
                    var script = document.createElement("script");
                    script.type = "text/javascript";
                    script.src = "https://maps.googleapis.com/maps/api/js?' . ($apikey ? ('key=' . $apikey . '&') : '') . 'callback=plgFriendsLocInitializeMap";
                    document.body.appendChild(script);
                }

                function plgFriendsLocInitializeMap()
                {

                    var myLatlng = new google.maps.LatLng(-34.397, 150.644);
                    var myOptions = {
                        mapTypeId: google.maps.MapTypeId.ROADMAP
                    }
                    map      = new google.maps.Map(document.getElementById("floc_map_canvas"), myOptions);
                    bounds   = new google.maps.LatLngBounds();
                    geocoder = new google.maps.Geocoder();
                    retry    = 10;
                    // Geocode and add marker on the map
                    joms.jQuery(address).each(function(index) {
                        plgFriendsLocCodeAddress(address[index].address,address[index].userdetails,retry);
                    });

                    return;
                    baseIcon = new GIcon(G_DEFAULT_ICON);
                    baseIcon.iconSize = new GSize(20, 34);
                    baseIcon.iconAnchor = new GPoint(9, 34);
                    baseIcon.infoWindowAnchor = new GPoint(9, 2);
                }


                function plgFriendsLocCodeAddress(address, userdetails, retry) {
                    if (retry >= 0)
                    {
                        geocoder.geocode( { "address": address}, function(results, status) {
                          if (status == google.maps.GeocoderStatus.OK) {
                            var contentString = "<div style=\'float: left; width: 32px; margin-top: 4px;\' class=\'joms-avatar--stream\'><img src=\'"+userdetails.avatar+"\' width=40 height=40 alt=\'\'></div><div style=\'margin-left: 45px; margin-top: 3px;overflow:hidden;\'><strong><a href=\'"+userdetails.link+"\'>"+userdetails.username+"</a></strong>"+"<div style=\'clear: both; height: 1px;\'>&nbsp;</div>"+address+"</div>";

                            var infowindow = new google.maps.InfoWindow({
                                content: contentString
                            });

                            var marker = new google.maps.Marker({
                                map: map,
                                position: results[0].geometry.location
                            });

                            google.maps.event.addListener(marker, "click", function() {
                            	infowindow.open(map,marker);
                            });

                            // Extends the map bounds
                            var point = new google.maps.LatLng(
                                results[0].geometry.location.lat,
                                results[0].geometry.location.lng
                            );

                            bounds.extend(results[0].geometry.location);
                            map.fitBounds(bounds);
                            map.panToBounds(bounds);
                          } else if (status == google.maps.GeocoderStatus.OVER_QUERY_LIMIT){
                                retry = retry - 1;
                                
                                setTimeout(function(){plgFriendsLocCodeAddress(address,userdetails,retry);
	                                address=null;
	                                userdetails=null;
	                                retry=null;},1000
	                            );
                            }else {
                            //alert("Geocode was not successful for the following reason: " + status);
                          }
                        });
                    }
                }

                function addAddressToMap(response){
                    if (!response || response.Status.code != 200){
                        //alert("Sorry, we were unable to geocode that address");
                    }else{
                        var total_ppl = 0;

                        for (var l in address[response.name]){
                            total_ppl++;
                        }

                        var marker_temp = total_ppl + "'.JText::_('PLG_FRIENDSLOCATION_FRIEND_STAY').'<br />";

                        for (var j in address[response.name]) {
                            marker_temp += "<div style=\'float: left; width: 32px; margin-top: 4px;\'><img src=\'"+address[response.name][j]["avatar"][0]+"\' width=40 height=40 alt=\'\'></div><div style=\'margin-left: 45px; margin-top: 3px;\'><a href=\'"+address[response.name][j]["link"][0]+"\'>"+address[response.name][j]["username"][0]+"</a>"+address[response.name][j]["karma_points"][0]+"<div style=\'clear: both; height: 1px;\'>&nbsp;</div></div>";
                        }

                        place = response.Placemark[0];
                        point = new GLatLng(place.Point.coordinates[1], place.Point.coordinates[0]);
                        var marker = new GMarker(point);

                        GEvent.addListener(marker, "click", function(){
                            marker.openInfoWindowHtml( "<strong>'.JText::_('PLG_FRIENDSLOCATION_LOCATION').'</strong> : " + response.Placemark[0].address + "<br />dsadsadsad<br />" + marker_temp);
                        });

                        map.addOverlay(marker);
                    }
                }

                window.joms_queue || (window.joms_queue = []);
                window.joms_queue.push(function() {
                    joms.jQuery(function() {
                        var canvas = joms.jQuery("#floc_map_canvas");
                        var timer = setInterval(function() {
                            if ( canvas.is(":visible") ) {
                                clearInterval( timer );
                                plgFriendsLocLoadScript();
                            }
                        }, 1000);
                    });
                });
                ';

            $document   = JFactory::getDocument();
            $document->addScriptDeclaration($script);
        }

		private function _getFriendsLocationHTML($mapkey, $width, $height, $show_karma, $town_field_id, $state_field_id, $country_field_id, $zip_field_id, $address_field_id, $userid, $def_limit, $layout)
		{
			ob_start();

			$friends = $this->_getFriends($userid, $def_limit);

            if($this->params->get('hide_empty', 0) && !count($friends)) return '';

			if(!empty($friends))
			{
				$friends_location = $this->_getFriendsLocation($friends, $town_field_id, $state_field_id, $country_field_id, $zip_field_id, $address_field_id, $show_karma);

				// Convert to array of address
				$fl			= array();
				$fLocation	= array();
				if(!empty($friends_location))
				{
					foreach($friends_location as $key => $val){
						$val->address = $key;
						$fl[] = $val;
					}

					// reformat $friends_location
					foreach($fl as &$val){

						$obj = new stdclass();
						foreach($val as $key=>$value){

							if(is_object($value)){
								$value->userid		= $key;
								$obj->userdetails	= $value;
							}else{
								$obj->address		= $value;
							}

						}

						$fLocation[] = $obj;
					}
				}

				if (empty($fLocation)) {
				?>
					<div id="application-flocations">
						<div><?php echo JText::_("PLG_FRIENDSLOCATION_NO_FRIENDS_LOCATION_INFO")?></div>
					</div>
				<?php
				} else {
					$json = new Services_JSON();
					$addr = $json->encode($fLocation);

					$config = CFactory::getConfig();
					$apikey = $config->get('googleapikey');
                    
                    if (CFactory::getConfig()->get('maps_api', '') == 'googlemap') {
	                    $this->google_script($addr, $apikey);
	                } else {
	                    $this->osm_script($addr);
	                }

					$content = '<div id="floc_map_canvas" style="width:100%; height:'.$height.'px"></div>';
					echo $content;
				}
			}
			else
			{

			?>
	            <div id="application-flocations">
	                <div><?php echo JText::_("PLG_FRIENDSLOCATION_NO_FRIENDS_YET")?></div>
	            </div>
			<?php
			}

			$html = ob_get_contents();
			@ob_end_clean();

			return $html;
		}

		function onAppDisplay()
		{
			ob_start();
			$limit=0;
			$html= $this->onProfileDisplay($limit);
			echo $html;

			$content	= ob_get_contents();
			ob_end_clean();

			return $content;

		}

	}
}