mirror of https://github.com/espruino/BangleApps
85 lines
2.9 KiB
JavaScript
85 lines
2.9 KiB
JavaScript
(function(){
|
|
var settings = require("Storage").readJSON("health.json",1)||{};
|
|
var hrm = 0|settings.hrm;
|
|
if (hrm==1) {
|
|
function onHealth() {
|
|
Bangle.setHRMPower(1, "health");
|
|
setTimeout(()=>Bangle.setHRMPower(0, "health"),2*60000); // give it 2 minutes
|
|
}
|
|
Bangle.on("health", onHealth);
|
|
Bangle.on('HRM', h => {
|
|
if (h.confidence>80) Bangle.setHRMPower(0, "health");
|
|
});
|
|
if (Bangle.getHealthStatus().bpmConfidence) return;
|
|
onHealth();
|
|
} else Bangle.setHRMPower(hrm!=0, "health");
|
|
})();
|
|
|
|
Bangle.on("health", health => {
|
|
// ensure we write health info for *last* block
|
|
var d = new Date(Date.now() - 590000);
|
|
|
|
const DB_RECORD_LEN = 4;
|
|
const DB_RECORDS_PER_HR = 6;
|
|
const DB_RECORDS_PER_DAY = DB_RECORDS_PER_HR*24 + 1/*summary*/;
|
|
const DB_RECORDS_PER_MONTH = DB_RECORDS_PER_DAY*31;
|
|
const DB_HEADER_LEN = 8;
|
|
const DB_FILE_LEN = DB_HEADER_LEN + DB_RECORDS_PER_MONTH*DB_RECORD_LEN;
|
|
|
|
function getRecordFN(d) {
|
|
return "health-"+d.getFullYear()+"-"+d.getMonth()+".raw";
|
|
}
|
|
function getRecordIdx(d) {
|
|
return (DB_RECORDS_PER_DAY*(d.getDate()-1)) +
|
|
(DB_RECORDS_PER_HR*d.getHours()) +
|
|
(0|(d.getMinutes()*DB_RECORDS_PER_HR/60));
|
|
}
|
|
function getRecordData(health) {
|
|
return String.fromCharCode(
|
|
health.steps>>8,health.steps&255, // 16 bit steps
|
|
health.bpm, // 8 bit bpm
|
|
Math.min(health.movement / 8, 255)); // movement
|
|
}
|
|
|
|
var rec = getRecordIdx(d);
|
|
var fn = getRecordFN(d);
|
|
var f = require("Storage").read(fn);
|
|
if (f) {
|
|
var dt = f.substr(DB_HEADER_LEN+(rec*DB_RECORD_LEN), DB_RECORD_LEN);
|
|
if (dt!="\xFF\xFF\xFF\xFF") {
|
|
print("HEALTH ERR: Already written!");
|
|
return;
|
|
}
|
|
} else {
|
|
require("Storage").write(fn, "HEALTH1\0", 0, DB_FILE_LEN); // header
|
|
}
|
|
var recordPos = DB_HEADER_LEN+(rec*DB_RECORD_LEN);
|
|
require("Storage").write(fn, getRecordData(health), recordPos, DB_FILE_LEN);
|
|
if (rec%DB_RECORDS_PER_DAY != DB_RECORDS_PER_DAY-2) return;
|
|
// we're at the end of the day. Read in all of the data for the day and sum it up
|
|
var sumPos = recordPos + DB_RECORD_LEN; // record after the current one is the sum
|
|
if (f.substr(sumPos, DB_RECORD_LEN)!="\xFF\xFF\xFF\xFF") {
|
|
print("HEALTH ERR: Daily summary already written!");
|
|
return;
|
|
}
|
|
health = { steps:0, bpm:0, movement:0, movCnt:0, bpmCnt:0};
|
|
var records = DB_RECORDS_PER_HR*24;
|
|
for (var i=0;i<records;i++) {
|
|
var dt = f.substr(recordPos, DB_RECORD_LEN);
|
|
if (dt!="\xFF\xFF\xFF\xFF") {
|
|
health.steps += (dt.charCodeAt(0)<<8)+dt.charCodeAt(1);
|
|
health.movement += dt.charCodeAt(2);
|
|
health.movCnt++;
|
|
var bpm = dt.charCodeAt(2);
|
|
health.bpm += bpm;
|
|
if (bpm) health.bpmCnt++;
|
|
}
|
|
recordPos -= DB_RECORD_LEN;
|
|
}
|
|
if (health.bpmCnt)
|
|
health.bpm /= health.bpmCnt;
|
|
if (health.movCnt)
|
|
health.movement /= health.movCnt;
|
|
require("Storage").write(fn, getRecordData(health), sumPos, DB_FILE_LEN);
|
|
});
|