mirror of https://github.com/espruino/BangleApps
114 lines
3.5 KiB
JavaScript
114 lines
3.5 KiB
JavaScript
const DB_RECORD_LEN = 4;
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const DB_RECORDS_PER_HR = 6;
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const DB_RECORDS_PER_DAY = DB_RECORDS_PER_HR*24 + 1/*summary*/;
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const DB_RECORDS_PER_MONTH = DB_RECORDS_PER_DAY*31;
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const DB_HEADER_LEN = 8;
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const DB_FILE_LEN = DB_HEADER_LEN + DB_RECORDS_PER_MONTH*DB_RECORD_LEN;
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function getRecordFN(d) {
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return "health-"+d.getFullYear()+"-"+(d.getMonth()+1)+".raw";
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}
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function getRecordIdx(d) {
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return (DB_RECORDS_PER_DAY*(d.getDate()-1)) +
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(DB_RECORDS_PER_HR*d.getHours()) +
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(0|(d.getMinutes()*DB_RECORDS_PER_HR/60));
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}
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// Read all records from the given month
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exports.readAllRecords = function(d, cb) {
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var fn = getRecordFN(d);
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var f = require("Storage").read(fn);
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if (f===undefined) return;
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var idx = DB_HEADER_LEN;
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for (var day=0;day<31;day++) {
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for (var hr=0;hr<24;hr++) { // actually 25, see below
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for (var m=0;m<DB_RECORDS_PER_HR;m++) {
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var h = f.substr(idx, DB_RECORD_LEN);
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if (h!="\xFF\xFF\xFF\xFF") {
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cb({
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day:day+1, hr : hr, min:m*10,
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steps : (h.charCodeAt(0)<<8) | h.charCodeAt(1),
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bpm : h.charCodeAt(2),
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movement : h.charCodeAt(3)*8
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});
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}
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idx += DB_RECORD_LEN;
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}
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}
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idx += DB_RECORD_LEN; // +1 because we have an extra record with totals for the end of the day
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}
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};
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// Read the entire database. There is no guarantee that the months are read in order.
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exports.readFullDatabase = function(cb) {
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require("Storage").list(/health-[0-9]+-[0-9]+.raw/).forEach(val => {
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console.log(val);
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var parts = val.split('-');
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var y = parseInt(parts[1]);
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var mo = parseInt(parts[2].replace('.raw', ''));
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exports.readAllRecords(new Date(y, mo, 1), (r) => {
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r.date = new Date(y, mo, r.day, r.hr, r.min);
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cb(r);
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});
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});
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};
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// Read all records per day, until the current time.
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// There may be some records for the day of the timestamp previous to the timestamp
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exports.readAllRecordsSince = function(d, cb) {
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var currentDate = new Date().getTime();
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var di = d;
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while (di.getTime() <= currentDate) {
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exports.readDay(di, (r) => {
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r.date = new Date(di.getFullYear(), di.getMonth(), di.getDate(), r.hr, r.min);
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cb(r);
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});
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di.setDate(di.getDate() + 1);
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}
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};
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// Read daily summaries from the given month
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exports.readDailySummaries = function(d, cb) {
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var rec = getRecordIdx(d);
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var fn = getRecordFN(d);
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var f = require("Storage").read(fn);
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if (f===undefined) return;
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var idx = DB_HEADER_LEN + (DB_RECORDS_PER_DAY-1)*DB_RECORD_LEN; // summary is at the end of each day
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for (var day=0;day<31;day++) {
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var h = f.substr(idx, DB_RECORD_LEN);
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if (h!="\xFF\xFF\xFF\xFF") {
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cb({
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day:day+1,
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steps : (h.charCodeAt(0)<<8) | h.charCodeAt(1),
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bpm : h.charCodeAt(2),
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movement : h.charCodeAt(3)*8
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});
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}
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idx += DB_RECORDS_PER_DAY*DB_RECORD_LEN;
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}
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}
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// Read all records from the given day
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exports.readDay = function(d, cb) {
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var rec = getRecordIdx(d);
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var fn = getRecordFN(d);
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var f = require("Storage").read(fn);
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if (f===undefined) return;
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var idx = DB_HEADER_LEN + (DB_RECORD_LEN*DB_RECORDS_PER_DAY*(d.getDate()-1));
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for (var hr=0;hr<24;hr++) {
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for (var m=0;m<DB_RECORDS_PER_HR;m++) {
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var h = f.substr(idx, DB_RECORD_LEN);
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if (h!="\xFF\xFF\xFF\xFF") {
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cb({
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hr : hr, min:m*10,
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steps : (h.charCodeAt(0)<<8) | h.charCodeAt(1),
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bpm : h.charCodeAt(2),
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movement : h.charCodeAt(3)*8
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});
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}
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idx += DB_RECORD_LEN;
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}
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}
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}
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