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exstats: add ETA stat #4058

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exstats: add ETA stat #4058

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33 changes: 30 additions & 3 deletions modules/exstats.js
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Original file line number Diff line number Diff line change
Expand Up @@ -16,13 +16,15 @@ print(ExStats.getList());
{name: "Steps", id:"step"},
{name: "Heart (BPM)", id:"bpm"},
{name: "Max BPM", id:"maxbpm"},
{name: "Pace (avr)", id:"pacea"},
{name: "Pace (avg)", id:"pacea"},
{name: "Pace (current)", id:"pacec"},
{name: "Cadence", id:"caden"},
{name: "ETA (avg)", id:"etaa"},
{name: "ETA (current)", id:"etac"},
]

// Setup and load all statistic types
var exs = ExStats.getStats(["dist", "time", "pacea","bpm","step","caden"], options);
var exs = ExStats.getStats(["dist", "time", "pacea","bpm","step","caden","etaa","etac"], options);
// exs contains
{
stats : { time : {
Expand Down Expand Up @@ -143,6 +145,13 @@ function formatPace(speed, paceLength) {
return ('0' + min).substr(-2) + `:` + ('0' + sec).substr(-2);
}

function eta(speed, state) {
if (speed <= 0) return Infinity;

const distRemaining = (state.distance || 0) % 5000;
return distRemaining / speed;
}

Bangle.on("GPS", function(fix) {
if (!fix.fix) return; // only process actual fixes
state.lastGPS = state.thisGPS;
Expand Down Expand Up @@ -208,7 +217,9 @@ exports.getList = function() {
{name: "Pace (curr)", id:"pacec"},
{name: "Speed", id:"speed"},
{name: "Cadence", id:"caden"},
{name: "Altitude (GPS)", id:"altg"}
{name: "Altitude (GPS)", id:"altg"},
{name: "ETA (avg)", id:"etaa"},
{name: "ETA (current)", id:"etac"},
];
if (Bangle.setBarometerPower) l.push({name: "Altitude (baro)", id:"altb"});
return l;
Expand Down Expand Up @@ -311,6 +322,22 @@ exports.getStats = function(statIDs, options) {
getString : function() { return (state.alt===undefined)?"-":state.alti+"m"; },
};
}
if (statIDs.includes("etaa")) {
needGPS = true;
stats["etaa"]={
title : "A ETA",
getValue : function() { return eta(state.avrSpeed, state); },
getString : function() { const t = this.getValue(); return isFinite(t) ? formatTime(t) : "__:__"; },
};
}
if (statIDs.includes("etac")) {
needGPS = true;
stats["etac"]={
title : "C ETA",
getValue : function() { return eta(state.curSpeed, state); },
getString : function() { const t = this.getValue(); return isFinite(t) ? formatTime(t) : "__:__"; },
};
}
// ======================
for (var i in stats) stats[i].id=i; // set up ID field
if (needGPS) Bangle.setGPSPower(true,"exs");
Expand Down