preston/bittorious

var map;
var markers = [];

function initMap() {
    if(map == null) {
        console.log("Initializing map...");
        var mapOptions = {
            zoom: 4,
            center: new google.maps.LatLng(40.397, -98.644)
        };
        var tmp = document.getElementById("map_canvas");
        if(tmp != null) {
            map = new google.maps.Map(tmp, mapOptions);
        }
    } else {
        removeMarkers();
    }
}


function coordinatesToLatLong(latitude, longitude) {
    var ll = null;
    if(latitude == "" || longitude == ""){
        console.log("Peer coordinates are invalid. They will not be mapped.");
    } else {
        // console.log("Peer: " + latitude + ', ' + longitude);
        ll = new google.maps.LatLng(latitude, longitude);
    }
    return ll;
}

function addMarker(peer) {
    console.log('Adding marker...');
    var ll = coordinatesToLatLong(peer.latitude, peer.longitude);
    if(ll) {
        var marker = new google.maps.Marker({
            position: ll,
            map: map,
            title: peer.city_name + ', ' + peer.country_name,
            animation: google.maps.Animation.DROP
        });
        markers.push(marker);
    
        var contentString = "<dl><dt>Location</dt><dd>" + peer.city_name + ', ' + peer.country_name + "</dd><dt>Coordinates</dt><dd>" + peer.latitude + ', ' + peer.longitude + "</dd></dl>";
        var infowindow = new google.maps.InfoWindow({ content: contentString });
        google.maps.event.addListener(marker, 'click', function() {
            infowindow.open(map,marker);
        });
    }
}

function removeMarkers() {
    console.log('Removing markers from map...');
    $.each(markers, function(i, m) {
        m.setMap(null);
    });
    markers = [];
    markers.length = 0;
}


function refreshMap(peers) {
    if(map == null) {
        initMap();
    }
    console.log('Refreshing map...');
    for(var i = 0; i < peers.length; i++)  {
        addMarker(peers[i]);
        // addMarker({'latitude' : '38.422', 'longitude' : '262.273', 'city' : 'Nowhere', 'country' : 'United States'});
    };
}