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Make bolus snooze suppress low-temps at mealtime #27

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Merged
merged 4 commits into from
Sep 15, 2015
Merged

Make bolus snooze suppress low-temps at mealtime #27

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a13c1ee
make bolus snooze window 1.5x as big initially to avoid low-temping a…
scottleibrand Sep 10, 2015
fbb86b9
bump package version, just because
scottleibrand Sep 10, 2015
9ee6789
fix basal_iob > max_iob logic, and call out when no temp, setting
scottleibrand Sep 13, 2015
823a5fc
Merge branch 'master' into bolus-low-snooze
scottleibrand Sep 14, 2015
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fix basal_iob > max_iob logic, and call out when no temp, setting
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@scottleibrand
scottleibrand committed Sep 13, 2015
commit 9ee6789edfadd4abd29b48c16b5984bc137d5c59
63 changes: 36 additions & 27 deletions bin/determine-basal.js
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Expand Up @@ -217,36 +217,45 @@ if (!module.parent) {

} else if (eventualBG > profile_data.max_bg) { // if eventual BG is above target:
// if iob is over max, just cancel any temps
var basal_iob = iob_data.iob - iob_data.bolusiob;
var basal_iob = Math.round(( iob_data.iob - iob_data.bolusiob )*1000)/1000;
if (basal_iob > max_iob) {
reason = "IOB " + basal_iob + ">" + max_iob;
reason = "basal_iob " + basal_iob + " > max_iob " + max_iob;
setTempBasal(0, 0);
}
// calculate 30m high-temp required to get projected BG down to target
// additional insulin required to get down to max bg:
var insulinReq = (eventualBG - target_bg) / profile_data.sens;
// if that would put us over max_iob, then reduce accordingly
insulinReq = Math.min(insulinReq, max_iob-basal_iob);
} else {
// calculate 30m high-temp required to get projected BG down to target
// additional insulin required to get down to max bg:
var insulinReq = (eventualBG - target_bg) / profile_data.sens;
// if that would put us over max_iob, then reduce accordingly
if (insulinReq > max_iob-basal_iob) {
reason = "max_iob " + max_iob + ", ";
insulinReq = max_iob-basal_iob;
}

// rate required to deliver insulinReq more insulin over 30m:
var rate = profile_data.current_basal + (2 * insulinReq);
rate = Math.round( rate * 1000 ) / 1000;
maxSafeBasal = Math.min(profile_data.max_basal, 3 * profile_data.max_daily_basal, 4 * profile_data.current_basal);
if (rate > maxSafeBasal) {
rate = maxSafeBasal;
//console.error(maxSafeBasal);
}
var insulinScheduled = temps_data.duration * (temps_data.rate - profile_data.current_basal) / 60;
if (insulinScheduled > insulinReq + 0.3) { // if current temp would deliver >0.3U more than the required insulin, lower the rate
reason = temps_data.duration + "@" + temps_data.rate + " > req " + insulinReq + "U";
setTempBasal(rate, 30);
}
else if (typeof temps_data.rate !== 'undefined' && (temps_data.duration > 0 && rate < temps_data.rate + 0.1)) { // if required temp < existing temp basal
reason = "temp " + temps_data.rate + " >~ req " + rate + "U/hr";
console.error(reason);
} else { // required temp > existing temp basal
reason = "temp " + temps_data.rate + "<" + rate + "U/hr";
setTempBasal(rate, 30);
// rate required to deliver insulinReq more insulin over 30m:
var rate = profile_data.current_basal + (2 * insulinReq);
rate = Math.round( rate * 1000 ) / 1000;

maxSafeBasal = Math.min(profile_data.max_basal, 3 * profile_data.max_daily_basal, 4 * profile_data.current_basal);
if (rate > maxSafeBasal) {
rate = maxSafeBasal;
//console.error(maxSafeBasal);
}
var insulinScheduled = temps_data.duration * (temps_data.rate - profile_data.current_basal) / 60;
if (insulinScheduled > insulinReq + 0.3) { // if current temp would deliver >0.3U more than the required insulin, lower the rate
reason = temps_data.duration + "@" + temps_data.rate + " > req " + insulinReq + "U";
setTempBasal(rate, 30);
}
else if (typeof temps_data.rate == 'undefined' || temps_data.rate == 0) { // no temp is set
reason += "no temp, setting " + rate + "U/hr";
setTempBasal(rate, 30);
}
else if (temps_data.duration > 0 && rate < temps_data.rate + 0.1) { // if required temp <~ existing temp basal
reason += "temp " + temps_data.rate + " >~ req " + rate + "U/hr";
console.error(reason);
} else { // required temp > existing temp basal
reason += "temp " + temps_data.rate + "<" + rate + "U/hr";
setTempBasal(rate, 30);
}
}

} else {
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