AndroidAPS/app/src/main/java/info/nightscout/androidaps/data/GlucoseStatus.java
2019-04-15 15:19:19 +02:00

178 lines
6.1 KiB
Java

package info.nightscout.androidaps.data;
import android.support.annotation.Nullable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.ArrayList;
import java.util.List;
import info.nightscout.androidaps.db.BgReading;
import info.nightscout.androidaps.logging.L;
import info.nightscout.androidaps.plugins.iob.iobCobCalculator.IobCobCalculatorPlugin;
import info.nightscout.androidaps.utils.DateUtil;
import info.nightscout.androidaps.utils.DecimalFormatter;
import info.nightscout.androidaps.utils.Round;
/**
* Created by mike on 04.01.2017.
*/
public class GlucoseStatus {
private static Logger log = LoggerFactory.getLogger(GlucoseStatus.class);
public double glucose = 0d;
public double delta = 0d;
public double avgdelta = 0d;
public double short_avgdelta = 0d;
public double long_avgdelta = 0d;
public long date = 0L;
public String log() {
return "Glucose: " + DecimalFormatter.to0Decimal(glucose) + " mg/dl " +
"Delta: " + DecimalFormatter.to0Decimal(delta) + " mg/dl" +
"Short avg. delta: " + " " + DecimalFormatter.to2Decimal(short_avgdelta) + " mg/dl " +
"Long avg. delta: " + DecimalFormatter.to2Decimal(long_avgdelta) + " mg/dl";
}
public GlucoseStatus() {
}
public GlucoseStatus round() {
this.glucose = Round.roundTo(this.glucose, 0.1);
this.delta = Round.roundTo(this.delta, 0.01);
this.avgdelta = Round.roundTo(this.avgdelta, 0.01);
this.short_avgdelta = Round.roundTo(this.short_avgdelta, 0.01);
this.long_avgdelta = Round.roundTo(this.long_avgdelta, 0.01);
return this;
}
@Nullable
public static GlucoseStatus getGlucoseStatusData() {
return getGlucoseStatusData(false);
}
@Nullable
public static GlucoseStatus getGlucoseStatusData(boolean allowOldData) {
// load 45min
//long fromtime = DateUtil.now() - 60 * 1000L * 45;
//List<BgReading> data = MainApp.getDbHelper().getBgreadingsDataFromTime(fromtime, false);
List<BgReading> data = IobCobCalculatorPlugin.getPlugin().getBgReadings();
if (data == null) {
if (L.isEnabled(L.GLUCOSE))
log.debug("data=null");
return null;
}
int sizeRecords = data.size();
if (sizeRecords == 0) {
if (L.isEnabled(L.GLUCOSE))
log.debug("sizeRecords==0");
return null;
}
if (data.get(0).date < DateUtil.now() - 7 * 60 * 1000L && !allowOldData) {
if (L.isEnabled(L.GLUCOSE))
log.debug("olddata");
return null;
}
BgReading now = data.get(0);
long now_date = now.date;
double change;
if (sizeRecords == 1) {
GlucoseStatus status = new GlucoseStatus();
status.glucose = now.value;
status.short_avgdelta = 0d;
status.delta = 0d;
status.long_avgdelta = 0d;
status.avgdelta = 0d; // for OpenAPS MA
status.date = now_date;
if (L.isEnabled(L.GLUCOSE))
log.debug("sizeRecords==1");
return status.round();
}
ArrayList<Double> now_value_list = new ArrayList<>();
ArrayList<Double> last_deltas = new ArrayList<>();
ArrayList<Double> short_deltas = new ArrayList<>();
ArrayList<Double> long_deltas = new ArrayList<>();
// Use the latest sgv value in the now calculations
now_value_list.add(now.value);
for (int i = 1; i < sizeRecords; i++) {
if (data.get(i).value > 38) {
BgReading then = data.get(i);
long then_date = then.date;
double avgdelta;
long minutesago;
minutesago = Math.round((now_date - then_date) / (1000d * 60));
// multiply by 5 to get the same units as delta, i.e. mg/dL/5m
change = now.value - then.value;
avgdelta = change / minutesago * 5;
if (L.isEnabled(L.GLUCOSE))
log.debug(then.toString() + " minutesago=" + minutesago + " avgdelta=" + avgdelta);
// use the average of all data points in the last 2.5m for all further "now" calculations
if (0 < minutesago && minutesago < 2.5) {
// Keep and average all values within the last 2.5 minutes
now_value_list.add(then.value);
now.value = average(now_value_list);
// short_deltas are calculated from everything ~5-15 minutes ago
} else if (2.5 < minutesago && minutesago < 17.5) {
//console.error(minutesago, avgdelta);
short_deltas.add(avgdelta);
// last_deltas are calculated from everything ~5 minutes ago
if (2.5 < minutesago && minutesago < 7.5) {
last_deltas.add(avgdelta);
}
// long_deltas are calculated from everything ~20-40 minutes ago
} else if (17.5 < minutesago && minutesago < 42.5) {
long_deltas.add(avgdelta);
} else {
// Do not process any more records after >= 42.5 minutes
break;
}
}
}
GlucoseStatus status = new GlucoseStatus();
status.glucose = now.value;
status.date = now_date;
status.short_avgdelta = average(short_deltas);
if (last_deltas.isEmpty()) {
status.delta = status.short_avgdelta;
} else {
status.delta = average(last_deltas);
}
status.long_avgdelta = average(long_deltas);
status.avgdelta = status.short_avgdelta; // for OpenAPS MA
if (L.isEnabled(L.GLUCOSE))
log.debug(status.log());
return status.round();
}
public static double average(ArrayList<Double> array) {
double sum = 0d;
if (array.size() == 0)
return 0d;
for (Double value : array) {
sum += value;
}
return sum / array.size();
}
}