var Clay = require('pebble-clay');
var clayConfig = require('./config');
var clay = new Clay(clayConfig);
var messageKeys = require('message_keys');
var message;
var gpx_to_strava = false;
var gpx_to_web = true;
var locationInterval;
var firstlocationOptions = {
'enableHighAccuracy': true, // default = false (quick and dirty mode), can be true (more accurate but need more power and time)
'timeout': 60000, //60s timeout to get a good signal
'maximumAge': 5 // no cache
};
var locationOptions = {
'enableHighAccuracy': true, // default = false (quick and dirty mode), can be true (more accurate but need more power and time)
'timeout': 5000, //5s timeout to get a good signal
'maximumAge': 5 // no cache
};
var geoloc_id;
// Store location in Pebble app local storage
//
function storeLocation(position) {
var latitude = position.coords.latitude;
var longitude = position.coords.longitude;
var timestamp = position.timestamp;
localStorage.setItem("latitude", latitude);
localStorage.setItem("longitude", longitude);
localStorage.setItem("timestamp", timestamp);
// console.log("Stored location " + position.coords.latitude + ',' + position.coords.longitude);
}
// Get location from Pebble app local storage
//
function getLocation() {
if (localStorage.getItem("latitude") || localStorage.getItem("longitude") || localStorage.getItem("timestamp")) {
var la = localStorage.getItem("latitude");
var lo = localStorage.getItem("longitude");
var ti = localStorage.getItem("timestamp");
var co = { "latitude": la, "longitude": lo };
var pos = { "coords": co, "timestamp": ti };
// console.log("Stored location " + pos.co.la + ',' + pos.co.lo);
return pos;
} else {
return null;
}
}
// Calculate the distance from 2 geoloc in degrees.
// IMPORTANT : this is a calculation from 2D projection, altitude is not involved
//
function distance_on_geoid(lat1, lon1, lat2, lon2) {
// Convert degrees to radians
lat1 = lat1 * Math.PI / 180.0;
lon1 = lon1 * Math.PI / 180.0;
lat2 = lat2 * Math.PI / 180.0;
lon2 = lon2 * Math.PI / 180.0;
// radius of earth in metres
r = 6378100;
// P
rho1 = r * Math.cos(lat1);
z1 = r * Math.sin(lat1);
x1 = rho1 * Math.cos(lon1);
y1 = rho1 * Math.sin(lon1);
// Q
rho2 = r * Math.cos(lat2);
z2 = r * Math.sin(lat2);
x2 = rho2 * Math.cos(lon2);
y2 = rho2 * Math.sin(lon2);
// Dot product
dot = (x1 * x2 + y1 * y2 + z1 * z2);
cos_theta = dot / (r * r);
theta = Math.acos(cos_theta);
// Distance in Metres
return r * theta;
}
// Calculate speed from 2 geoloc point arrays (with lat,long,timestamp)
//
function speed_from_distance_and_time(p1, p2) {
dist = distance_on_geoid(p1.coords.latitude, p1.coords.longitude, p2.coords.latitude, p2.coords.longitude);
// timestamp is in milliseconds
time_s = (p2.timestamp - p1.timestamp) / 1000.0;
speed_mps = dist / time_s;
speed_kph = (speed_mps * 3600.0) / 1000.0;
return speed_kph;
}
// Get max speed of the run
//
function getMaxSpeed(lastSpeed) {
oldmax = localStorage.getItem("maxSpeed") || -1;
if (oldmax < lastSpeed) {
maxSpeed = lastSpeed
} else if (oldmax > lastSpeed) {
maxSpeed = oldmax
} else {
maxSpeed = oldmax
}
localStorage.setItem("maxSpeed", maxSpeed);
return maxSpeed
}
// split float number into an array of int (null returned instead of 0 for decimal)
//
function splitFloatNumber(num) {
const intStr = num.toString().split('.')[0];
const decimalStr = num.toString().split('.')[1];
return [Number(intStr), Number(decimalStr)];
}
// Build GPX headers
//
function GPXHeadersBuilder(timestamp, name, type) {
var headers = '<?xml version="1.0" encoding="UTF-8"?><gpx creator="Pebble with barometer" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd" version="1.1" xmlns="http://www.topografix.com/GPX/1/1"><metadata><time>' + timestamp + '</time></metadata><trk><name>' + name + '</name><type>' + type + '</type><trkseg>';
var ret = localStorage.setItem("GPX", headers);
return true;
}
// Build GPX footer
//
function GPXtrkptBuilder(lat, lon, ele, timestamp) {
var GPX = localStorage.getItem("GPX");
var trkpt = '<trkpt lat="' + lat + '" lon="' + lon + '"><ele>' + ele + '</ele><time>' + timestamp + '</time></trkpt>';
localStorage.setItem("GPX", GPX + trkpt);
return true;
}
// Build GPX footer
//
function GPXfooterBuilder() {
var GPX = localStorage.getItem("GPX");
var footer = '</trkseg></trk></gpx>';
var ret = localStorage.setItem("GPX", GPX + footer);
//console.log("GPX closed : " + GPX + footer);
return ret;
}
// Send GPX to Strava profile
// TODO : get authentication creds from settings
function SendToStrava() {
console.log('--- GPX upload to strava');
var GPX = localStorage.getItem("GPX");
/* -------------------- */
var array = [GPX]; // an array consisting of a single string
var blob = new Blob(array, { type: "application/gpx+xml" }); // the blob
// creating multipart/form-data to be sent
var data = new FormData();
data.append("file", blob, "blob.gpx");
data.append("name", "test");
data.append("description", "testdesc");
data.append("data_type", "gpx");
var url = "https://www.strava.com/api/v3/uploads";
var xhr = new XMLHttpRequest();
xhr.withCredentials = true;
xhr.timeout = 10000; // time in milliseconds
xhr.open("POST", url, false);
xhr.setRequestHeader("Authorization", "Bearer d8927033b3996efe1e5a4e62425bc2aff8f635b0");
console.log('------GPX / xhr opened with authorization')
console.log('------array for blob: ' + array)
xhr.onload = function() {
console.log('------xhr onload')
if (xhr.readyState === 4) {
console.log('------xhr request returned with ' + xhr.status);
console.log(this.responseText);
if (xhr.status == 200) {
//console.log('--> HTTP 200');
return true;
} else {
//console.log('--> HTTP ' + xhr.status);
return false;
}
}
};
// send with data in body
xhr.send(data);
/* -------------------- */
}
// Build CSV
function CSV(pos) {
var CSV = localStorage.getItem("CSV");
var datapoint = pos.timestamp + "," + pos.coords.latitude + "," + pos.coords.longitude + "," + pos.coords.altitude + "," + pos.coords.accuracy + "," + pos.coords.altitudeAccuracy + "," + pos.coords.heading + "," + pos.coords.speed + "\n";
localStorage.setItem("CSV", CSV + datapoint);
}
// Send CSV to web server (need configuration on serverside)
// TODO : secure it ?
function PostToWeb() {
console.log('--- GPX upload to custom web server');
var GPX = localStorage.getItem("GPX");
var url = "https://jonget.fr/strava/upload.php?name=pebblegpx&type=application/gpx+xml";
var xhr = new XMLHttpRequest();
xhr.timeout = 10000; // time in milliseconds
xhr.open("POST", url, false);
//console.log('------ CSV / xhr opened')
xhr.onload = function() {
//console.log('------xhr onload')
if (xhr.readyState === 4) {
//console.log('------xhr request returned with ' + xhr.status);
//console.log(this.responseText);
if (xhr.status == 200) {
//console.log('--> HTTP 200');
return true;
} else {
//console.log('--> HTTP ' + xhr.status);
return false;
}
}
};
//send CSV in body
xhr.send(GPX);
}
// Send location to web server for instant location (no tracking)
// TODO : secure it ?
function instantLocationUpdate(pos) {
console.log('--- Instant location update');
// console.log(" location is " + new_pos.coords.latitude + ',' + new_pos.coords.longitude + ' , acc. ' + new_pos.coords.accuracy);
var url = "https://jonget.fr/find_me/update.php?lat=" + pos.coords.latitude + "&long=" + pos.coords.longitude + "&acc=" + pos.coords.accuracy + "×tamp=" + pos.timestamp;
var xhr = new XMLHttpRequest();
xhr.timeout = 10000; // time in milliseconds
xhr.open("POST", url);
//console.log('------ instant / xhr opened')
xhr.onload = function() {
//console.log('------xhr onload')
if (xhr.readyState === 4) {
//console.log('------xhr request returned with ' + xhr.status);
//console.log(this.responseText);
if (xhr.status == 200) {
//console.log('--> HTTP 200');
return true;
} else {
//console.log('--> HTTP ' + xhr.status);
return false;
}
}
};
//send without body
xhr.send();
}
// Adding leading characters to string for nice displays
//
function padStart(string, max_length, padding) {
if (string.length > max_length) {
return string;
} else {
var new_str = string;
for (index = string.length; index < max_length; index++) {
new_str = "0" + new_str;
}
return new_str;
}
}
// called in case of successful geoloc gathering and sends the coordinate to watch
//
function locationSuccess(new_pos) {
console.log('--- locationSuccess');
// console.log(" location is " + new_pos.coords.latitude + ',' + new_pos.coords.longitude + ' , acc. ' + new_pos.coords.accuracy);
var prev_pos = getLocation();
storeLocation(new_pos);
if (prev_pos === null) {
console.log('--- start building gpx');
if (gpx_to_strava || gpx_to_web) {
// Start the GPX file
GPXHeadersBuilder(new Date(new_pos.timestamp).toISOString(), "test", "18");
}
} else {
//clear watch of new position to avoid overlap
//navigator.geolocation.clearWatch(geoloc_id);
//console.log('--- watch geoloc cleared');
//var speed = speed_from_distance_and_time(prev_pos, new_pos);
//get speed from geoloc API isntead of calculate it
// speed is initially in m/s, get it at km/h
if (new_pos.coords.speed === null) {
var speed = 0;
} else {
var speed = new_pos.coords.speed * 3.6;
}
// Prepare display on watch
// now it's only raw data
// init strings
var latitudeString = "";
var longitudeString = "";
var accuracyString = "";
var altitudeString = "";
var speedString = "";
//formating for precision and max size
latitudeString = new_pos.coords.latitude.toString().substring(0, 12);
longitudeString = new_pos.coords.longitude.toString().substring(0, 12);
accuracyString = new_pos.coords.accuracy.toString().substring(0, 4);
//console.log("split num : " + new_pos.coords.altitude);
altitudeString = splitFloatNumber(new_pos.coords.altitude)[0].toString().substring(0, 5);
timestampISO = new Date(new_pos.timestamp).toISOString();
//console.log("split num : " + speed);
speedString = splitFloatNumber(speed)[0].toString().substring(0, 3) + "." + splitFloatNumber(speed)[1].toString().substring(0, 1);
//console.log("split num : " + getMaxSpeed(speed));
maxSpeedString = splitFloatNumber(getMaxSpeed(speed))[0].toString().substring(0, 3);
if (speedString == "NaN") {
speedString = "---";
}
if (gpx_to_strava || gpx_to_web) {
//add a new datapoint to GPX file
GPXtrkptBuilder(latitudeString, longitudeString, altitudeString, timestampISO);
}
// Build message
message = "OK";
var dict = {
'accuracy': accuracyString,
'altitude': altitudeString,
'speed': speedString,
'max_speed': maxSpeedString,
'status': message
};
// Send the message
Pebble.sendAppMessage(dict, function () {
console.log('Message sent successfully: ' + JSON.stringify(dict));
}, function (e) {
console.log('Message (' + JSON.stringify(dict) + ') failed: ' + JSON.stringify(e));
});
}
}
function locationError(err) {
console.warn('location error (' + err.code + '): ' + err.message);
/*
if (gpx_to_web) {
var CSV = localStorage.getItem("CSV");
var datapoint = Date.now() + ",location error," + err.code + "," + err.message + ",,,,";
localStorage.setItem("CSV", CSV + datapoint);
}*/
}
function get_coordinate() {
console.log('--- Starting regular getCurrentPosition loop using setInterval at 5 sec');
navigator.geolocation.getCurrentPosition(locationSuccess, locationError, firstlocationOptions);
locationInterval = setInterval(function() {
navigator.geolocation.getCurrentPosition(locationSuccess, locationError, locationOptions);
}, 1000);
instantLocationInterval = setInterval(function() {
navigator.geolocation.getCurrentPosition(instantLocationUpdate, locationError, locationOptions);
}, 60000);
}
function init() {
// local storage init,
// todo : clear only temporary values, not clay config (and do it on exit ?)
localStorage.clear();
localStorage.setItem("CSV", "");
// clear any other var to do
clearInterval(locationInterval);
}
// Get JS readiness events
Pebble.addEventListener('ready', function(e) {
console.log('PebbleKit JS is ready');
// Update Watch on this
Pebble.sendAppMessage({ 'JSReady': 1 });
init();
});
// Get AppMessage events
Pebble.addEventListener('appmessage', function(e) {
// Get the dictionary from the message
var dict = e.payload;
//console.log(dict[0].toString());
switch (dict[0]) {
case 'get':
get_coordinate();
break;
case 'exit':
if (gpx_to_strava || gpx_to_web) {
//End GPX file
GPXfooterBuilder();
if (gpx_to_strava) {
//send to strava through API
SendToStrava();
}
if (gpx_to_web) {
// send CSV to web server through API
PostToWeb();
}
}
break;
default:
console.log('Sorry. I don\'t understand your request :' + dict[0]);
}
});