61 lines
2.5 KiB
JavaScript
61 lines
2.5 KiB
JavaScript
'use strict';
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function reason(rT, msg) {
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rT.reason = (rT.reason ? rT.reason + '. ' : '') + msg;
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console.error(msg);
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}
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var tempBasalFunctions = {};
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tempBasalFunctions.getMaxSafeBasal = function getMaxSafeBasal(profile) {
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var max_daily_safety_multiplier = (isNaN(profile.max_daily_safety_multiplier) || profile.max_daily_safety_multiplier == null) ? 3 : profile.max_daily_safety_multiplier;
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var current_basal_safety_multiplier = (isNaN(profile.current_basal_safety_multiplier) || profile.current_basal_safety_multiplier == null) ? 4 : profile.current_basal_safety_multiplier;
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return Math.min(profile.max_basal, max_daily_safety_multiplier * profile.max_daily_basal, current_basal_safety_multiplier * profile.current_basal);
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};
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tempBasalFunctions.setTempBasal = function setTempBasal(rate, duration, profile, rT, currenttemp) {
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//var maxSafeBasal = Math.min(profile.max_basal, 3 * profile.max_daily_basal, 4 * profile.current_basal);
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var maxSafeBasal = tempBasalFunctions.getMaxSafeBasal(profile);
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var round_basal = require('./round-basal');
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if (rate < 0) {
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rate = 0;
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} else if (rate > maxSafeBasal) {
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rate = maxSafeBasal;
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}
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var suggestedRate = round_basal(rate, profile);
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if (typeof(currenttemp) !== 'undefined' && typeof(currenttemp.duration) !== 'undefined' && typeof(currenttemp.rate) !== 'undefined' && currenttemp.duration > (duration-10) && currenttemp.duration <= 120 && suggestedRate <= currenttemp.rate * 1.2 && suggestedRate >= currenttemp.rate * 0.8 && duration > 0 ) {
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rT.reason += " "+currenttemp.duration+"m left and " + currenttemp.rate + " ~ req " + suggestedRate + "U/hr: no temp required";
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return rT;
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}
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if (suggestedRate === profile.current_basal) {
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if (profile.skip_neutral_temps === true) {
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if (typeof(currenttemp) !== 'undefined' && typeof(currenttemp.duration) !== 'undefined' && currenttemp.duration > 0) {
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reason(rT, 'Suggested rate is same as profile rate, a temp basal is active, canceling current temp');
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rT.duration = 0;
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rT.rate = 0;
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return rT;
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} else {
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reason(rT, 'Suggested rate is same as profile rate, no temp basal is active, doing nothing');
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return rT;
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}
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} else {
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reason(rT, 'Setting neutral temp basal of ' + profile.current_basal + 'U/hr');
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rT.duration = duration;
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rT.rate = suggestedRate;
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return rT;
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}
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} else {
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rT.duration = duration;
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rT.rate = suggestedRate;
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return rT;
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}
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};
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module.exports = tempBasalFunctions;
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