Change fetchLimit for glucose oref input to be dynamic based on maxMealAbsorptionTime #920

Trio/Sources/APS/OpenAPS/OpenAPS.swift

@@ -393,13 +393,20 @@ final class OpenAPS {
         // Perform asynchronous calls in parallel
         async let pumpHistoryObjectIDs = fetchPumpHistoryObjectIDs() ?? []
         async let carbs = fetchAndProcessCarbs(additionalCarbs: simulatedCarbsAmount ?? 0, carbsDate: simulatedCarbsDate)
-        async let glucose = fetchAndProcessGlucose(context: context, shouldSmoothGlucose: shouldSmoothGlucose, fetchLimit: 72)
+
+        var preferences = await storage.retrieveAsync(OpenAPS.Settings.preferences, as: Preferences.self) ?? Preferences()
+        let glucoseFetchLimit = Int((preferences.maxMealAbsorptionTime * 12).rounded(scale: 0, roundingMode: .up))
+        async let glucose = fetchAndProcessGlucose(
+            context: context,
+            shouldSmoothGlucose: shouldSmoothGlucose,
+            fetchLimit: glucoseFetchLimit
+        )
+
         async let prepareTrioCustomOrefVariables = prepareTrioCustomOrefVariables()
         async let profileAsync = loadFileFromStorageAsync(name: Settings.profile)
         async let basalAsync = loadFileFromStorageAsync(name: Settings.basalProfile)
         async let autosenseAsync = loadFileFromStorageAsync(name: Settings.autosense)
         async let reservoirAsync = loadFileFromStorageAsync(name: Monitor.reservoir)
-        async let preferencesAsync = storage.retrieveAsync(OpenAPS.Settings.preferences, as: Preferences.self) ?? Preferences()
         async let hasSufficientTddForDynamic = tddStorage.hasSufficientTDD()
 
         // Await the results of asynchronous tasks
@@ -450,8 +457,6 @@ final class OpenAPS {
             storage.save(iob, as: Monitor.iob)
         }
 
-        var preferences = await preferencesAsync
-
         if !hasSufficientTdd, preferences.useNewFormula || (preferences.useNewFormula && preferences.sigmoid) {
             debug(.openAPS, "Insufficient TDD for dynamic formula; disabling for determine basal run.")
             preferences.useNewFormula = false