loopfollow/LoopFollow/Controllers/NightScout.swift

//
//  NightScout.swift
//  LoopFollow
//
//  Created by Jon Fawcett on 6/16/20.
//  Copyright © 2020 Jon Fawcett. All rights reserved.
//

import Foundation
import UIKit

extension MainViewController {
    //NS Carbs Struct
    struct carbsData: Codable {
        var carbs: Double?
    }

    //NS Cage Struct
    struct cageData: Codable {
        var created_at: String
    }
    
    //NS Basal Profile Struct
    struct basalProfileStruct: Codable {
        var value: Double
        var time: String
        var timeAsSeconds: Double
    }
    
    struct NSProfile: Decodable {
        struct Store: Decodable {
            struct BasalEntry: Decodable {
                let value: Double
                let time: String
                let timeAsSeconds: Double
            }
            
            let basal: [BasalEntry]
        }
        
        let store: [String: Store]
    }
    
    //NS Basal Data  Struct
    struct basalGraphStruct: Codable {
        var basalRate: Double
        var date: TimeInterval
    }
    
    //NS Bolus Data  Struct
    struct bolusGraphStruct: Codable {
        var value: Double
        var date: TimeInterval
        var sgv: Int
    }
    
    //NS Bolus Data  Struct
    struct carbGraphStruct: Codable {
        var value: Double
        var date: TimeInterval
        var sgv: Int
        var absorptionTime: Int
    }
    
    func isStaleData() -> Bool {
        if bgData.count > 0 {
            let now = dateTimeUtils.getNowTimeIntervalUTC()
            let lastReadingTime = bgData.last!.date
            let secondsAgo = now - lastReadingTime
            if secondsAgo >= 20*60 {
                return true
            } else {
                return false
            }
        } else {
            return false
        }
    }
    
    // Dex Share Web Call
    func webLoadDexShare() {
        // Dexcom Share only returns 24 hrs of data as of now
        // Requesting more just for consistency with NS
        let graphHours = 24 * UserDefaultsRepository.downloadDays.value
        var count = graphHours * 12
        dexShare?.fetchData(count) { (err, result) -> () in
            
            // TODO: add error checking
            if(err == nil) {
                var data = result!
                
                // If Dex data is old, load from NS instead
                let latestDate = data[0].date
                let now = dateTimeUtils.getNowTimeIntervalUTC()
                if (latestDate + 330) < now && UserDefaultsRepository.url.value != "" {
                    self.webLoadNSBGData()
                    print("dex didn't load, triggered NS attempt")
                    return
                }
                
                // Dexcom only returns 24 hrs of data. If we need more, call NS.
                if graphHours > 24 && UserDefaultsRepository.url.value != "" {
                    self.webLoadNSBGData(dexData: data)
                } else {
                    self.ProcessDexBGData(data: data, sourceName: "Dexcom")
                }
            } else {
                // If we get an error, immediately try to pull NS BG Data
                if UserDefaultsRepository.url.value != "" {
                    self.webLoadNSBGData()
                }
                
                if globalVariables.dexVerifiedAlert < dateTimeUtils.getNowTimeIntervalUTC() + 300 {
                    globalVariables.dexVerifiedAlert = dateTimeUtils.getNowTimeIntervalUTC()
                    DispatchQueue.main.async {
                        //self.sendNotification(title: "Dexcom Share Error", body: "Please double check user name and password, internet connection, and sharing status.")
                    }
                }
            }
        }
    }
    
    // NS BG Data Web call
    func webLoadNSBGData(dexData: [ShareGlucoseData] = []) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Download: BG") }
        
        // This kicks it out in the instance where dexcom fails but they aren't using NS &&
        if UserDefaultsRepository.url.value == "" {
            self.startBGTimer(time: 10)
            return
        }
        
        var parameters: [String: String] = [:]
        let utcISODateFormatter = ISO8601DateFormatter()
        let date = Calendar.current.date(byAdding: .day, value: -1 * UserDefaultsRepository.downloadDays.value, to: Date())!
        parameters["count"] = "1000"
        parameters["find[dateString][$gte]"] = utcISODateFormatter.string(from: date)
        
        NightscoutUtils.executeRequest(eventType: .sgv, parameters: parameters) { (result: Result<[ShareGlucoseData], Error>) in
            switch result {
            case .success(let entriesResponse):
                var nsData = entriesResponse
                DispatchQueue.main.async {
                    // transform NS data to look like Dex data
                    for i in 0..<nsData.count {
                        // convert the NS timestamp to seconds instead of milliseconds
                        nsData[i].date /= 1000
                        nsData[i].date.round(FloatingPointRoundingRule.toNearestOrEven)
                    }
                    print(nsData.count)
                    
                    //Avoid duplicate entries messing up the graph, only use one reading per 5 minutes.
                    let graphHours = 24 * UserDefaultsRepository.downloadDays.value
                    let points = graphHours * 12 + 1
                    var nsData2 = [ShareGlucoseData]()
                    let timestamp = Date().timeIntervalSince1970
                    for i in 0..<points {
                        //Starting with "now" and then step 5 minutes back in time
                        let target = timestamp - Double(i) * 60 * 5
                        //Find the reading closest to the target, but not too far away
                        let closest = nsData.filter{ abs($0.date - target) < 3 * 60 }.min { abs($0.date - target) < abs($1.date - target) }
                        //If a reading is found, add it to the new array
                        if let item = closest {
                            nsData2.append(item)
                        }
                    }
                    print(nsData2.count)
                    
                    // merge NS and Dex data if needed; use recent Dex data and older NS data
                    var sourceName = "Nightscout"
                    if !dexData.isEmpty {
                        let oldestDexDate = dexData[dexData.count - 1].date
                        var itemsToRemove = 0
                        while itemsToRemove < nsData2.count && nsData2[itemsToRemove].date >= oldestDexDate {
                            itemsToRemove += 1
                        }
                        nsData2.removeFirst(itemsToRemove)
                        nsData2 = dexData + nsData2
                        sourceName = "Dexcom"
                    }
                    // trigger the processor for the data after downloading.
                    self.ProcessDexBGData(data: nsData2, sourceName: sourceName)
                }
            case .failure(let error):
                print("Failed to fetch data: \(error)")
                if globalVariables.nsVerifiedAlert < dateTimeUtils.getNowTimeIntervalUTC() + 300 {
                    globalVariables.nsVerifiedAlert = dateTimeUtils.getNowTimeIntervalUTC()
                    //self.sendNotification(title: "Nightscout Error", body: "Please double check url, token, and internet connection. This may also indicate a temporary Nightscout issue")
                }
                DispatchQueue.main.async {
                    if self.bgTimer.isValid {
                        self.bgTimer.invalidate()
                    }
                    self.startBGTimer(time: 10)
                }
                // if we have Dex data, use it
                if !dexData.isEmpty {
                    self.ProcessDexBGData(data: dexData, sourceName: "Dexcom")
                }
                return
            }
        }
    }
    
    // Dexcom BG Data Response processor
    func ProcessDexBGData(data: [ShareGlucoseData], sourceName: String){
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: BG") }
        
        let graphHours = 24 * UserDefaultsRepository.downloadDays.value
        
        let pullDate = data[data.count - 1].date
        let latestDate = data[0].date
        let now = dateTimeUtils.getNowTimeIntervalUTC()
        
        // Start the BG timer based on the reading
        let secondsAgo = now - latestDate
        
        DispatchQueue.main.async {
            // if reading is overdue over: 20:00, re-attempt every 5 minutes
            if secondsAgo >= (20 * 60) {
                self.startBGTimer(time: (5 * 60))
                print("##### started 5 minute bg timer")
                
            // if the reading is overdue: 10:00-19:59, re-attempt every minute
            } else if secondsAgo >= (10 * 60) {
                self.startBGTimer(time: 60)
                print("##### started 1 minute bg timer")
                
            // if the reading is overdue: 7:00-9:59, re-attempt every 30 seconds
            } else if secondsAgo >= (7 * 60) {
                self.startBGTimer(time: 30)
                print("##### started 30 second bg timer")
                
            // if the reading is overdue: 5:00-6:59 re-attempt every 10 seconds
            } else if secondsAgo >= (5 * 60) {
                self.startBGTimer(time: 10)
                print("##### started 10 second bg timer")
            
            // We have a current reading. Set timer to 5:10 from last reading
            } else {
                self.startBGTimer(time: 300 - secondsAgo + Double(UserDefaultsRepository.bgUpdateDelay.value))
                let timerVal = 310 - secondsAgo
                print("##### started 5:10 bg timer: \(timerVal)")
                self.updateBadge(val: data[0].sgv)
                if UserDefaultsRepository.speakBG.value {
                    self.speakBG(currentValue: data[0].sgv, previousValue: data[1].sgv)
                }
            }
        }
        
        bgData.removeAll()
        
        // loop through the data so we can reverse the order to oldest first for the graph
        for i in 0..<data.count {
            let dateString = data[data.count - 1 - i].date
            if dateString >= dateTimeUtils.getTimeIntervalNHoursAgo(N: graphHours) {
                let sgvValue = data[data.count - 1 - i].sgv
                
                // Skip the current iteration if the sgv value is over 600
                // First time a user starts a G7, they get a value of 4000
                if sgvValue > 600 {
                    continue
                }
                
                let reading = ShareGlucoseData(sgv: sgvValue, date: dateString, direction: data[data.count - 1 - i].direction)
                bgData.append(reading)
            }
        }

        viewUpdateNSBG(sourceName: sourceName)
    }
    
    // NS BG Data Front end updater
    func viewUpdateNSBG (sourceName: String) {
        DispatchQueue.main.async {
            if UserDefaultsRepository.debugLog.value {
                self.writeDebugLog(value: "Display: BG")
                self.writeDebugLog(value: "Num BG: " + self.bgData.count.description)
            }
            let entries = self.bgData
            if entries.count < 1 { return }
            
            self.updateBGGraph()
            self.updateStats()
            
            let latestEntryi = entries.count - 1
            let latestBG = entries[latestEntryi].sgv
            let priorBG = entries[latestEntryi - 1].sgv
            let deltaBG = latestBG - priorBG as Int
            let lastBGTime = entries[latestEntryi].date
            
            let deltaTime = (TimeInterval(Date().timeIntervalSince1970)-lastBGTime) / 60
            var userUnit = " mg/dL"
            if self.mmol {
                userUnit = " mmol/L"
            }
            
            self.serverText.text = sourceName
            
            var snoozerBG = ""
            var snoozerDirection = ""
            var snoozerDelta = ""
            
            self.BGText.text = bgUnits.toDisplayUnits(String(latestBG))
            snoozerBG = bgUnits.toDisplayUnits(String(latestBG))
            self.setBGTextColor()
            
            if let directionBG = entries[latestEntryi].direction {
                self.DirectionText.text = self.bgDirectionGraphic(directionBG)
                snoozerDirection = self.bgDirectionGraphic(directionBG)
                self.latestDirectionString = self.bgDirectionGraphic(directionBG)
            }
            else
            {
                self.DirectionText.text = ""
                snoozerDirection = ""
                self.latestDirectionString = ""
            }
            
            if deltaBG < 0 {
                self.DeltaText.text = bgUnits.toDisplayUnits(String(deltaBG))
                snoozerDelta = bgUnits.toDisplayUnits(String(deltaBG))
                self.latestDeltaString = String(deltaBG)
            }
            else
            {
                self.DeltaText.text = "+" + bgUnits.toDisplayUnits(String(deltaBG))
                snoozerDelta = "+" + bgUnits.toDisplayUnits(String(deltaBG))
                self.latestDeltaString = "+" + String(deltaBG)
            }
            
            // Snoozer Display
            guard let snoozer = self.tabBarController!.viewControllers?[2] as? SnoozeViewController else { return }
            snoozer.BGLabel.text = snoozerBG
            snoozer.DirectionLabel.text = snoozerDirection
            snoozer.DeltaLabel.text = snoozerDelta
            
        }
        
    }
    
    // NS Device Status Web Call
    func webLoadNSDeviceStatus() {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Download: device status") }
        let urlUser = UserDefaultsRepository.url.value
        
        
        // NS Api is not working to find by greater than date
        var urlStringDeviceStatus = urlUser + "/api/v1/devicestatus.json?count=288"
        if token != "" {
            urlStringDeviceStatus = urlUser + "/api/v1/devicestatus.json?count=288&token=" + token
        }
        let escapedAddress = urlStringDeviceStatus.addingPercentEncoding(withAllowedCharacters:NSCharacterSet.urlQueryAllowed)
        guard let urlDeviceStatus = URL(string: escapedAddress!) else {
            if globalVariables.nsVerifiedAlert < dateTimeUtils.getNowTimeIntervalUTC() + 300 {
                globalVariables.nsVerifiedAlert = dateTimeUtils.getNowTimeIntervalUTC()
                //self.sendNotification(title: "Nightscout Failure", body: "Please double check url, token, and internet connection. This may also indicate a temporary Nightscout issue")
            }
            DispatchQueue.main.async {
                if self.deviceStatusTimer.isValid {
                    self.deviceStatusTimer.invalidate()
                }
                self.startDeviceStatusTimer(time: 10)
            }
            
            return
        }
        
        
        var requestDeviceStatus = URLRequest(url: urlDeviceStatus)
        requestDeviceStatus.cachePolicy = URLRequest.CachePolicy.reloadIgnoringLocalCacheData
        
        
        let deviceStatusTask = URLSession.shared.dataTask(with: requestDeviceStatus) { data, response, error in
            
            guard error == nil else {
                if globalVariables.nsVerifiedAlert < dateTimeUtils.getNowTimeIntervalUTC() + 300 {
                    globalVariables.nsVerifiedAlert = dateTimeUtils.getNowTimeIntervalUTC()
                    //self.sendNotification(title: "Nightscout Error", body: "Please double check url, token, and internet connection. This may also indicate a temporary Nightscout issue")
                }
                DispatchQueue.main.async {
                    if self.deviceStatusTimer.isValid {
                        self.deviceStatusTimer.invalidate()
                    }
                    self.startDeviceStatusTimer(time: 10)
                }
                return
            }
            
            guard let data = data else {
                if globalVariables.nsVerifiedAlert < dateTimeUtils.getNowTimeIntervalUTC() + 300 {
                    globalVariables.nsVerifiedAlert = dateTimeUtils.getNowTimeIntervalUTC()
                    //self.sendNotification(title: "Nightscout Error", body: "Please double check url, token, and internet connection. This may also indicate a temporary Nightscout issue")
                }
                DispatchQueue.main.async {
                    if self.deviceStatusTimer.isValid {
                        self.deviceStatusTimer.invalidate()
                    }
                    self.startDeviceStatusTimer(time: 10)
                }
                return
            }
            
            
            let json = try? (JSONSerialization.jsonObject(with: data) as? [[String:AnyObject]])
            if let json = json {
                DispatchQueue.main.async {
                    self.updateDeviceStatusDisplay(jsonDeviceStatus: json)
                }
            } else {
                if globalVariables.nsVerifiedAlert < dateTimeUtils.getNowTimeIntervalUTC() + 300 {
                    globalVariables.nsVerifiedAlert = dateTimeUtils.getNowTimeIntervalUTC()
                    //self.sendNotification(title: "Nightscout Error", body: "Please double check url, token, and internet connection. This may also indicate a temporary Nightscout issue")
                }
                DispatchQueue.main.async {
                    if self.deviceStatusTimer.isValid {
                        self.deviceStatusTimer.invalidate()
                    }
                    self.startDeviceStatusTimer(time: 10)
                }
                return
            }
        }
        deviceStatusTask.resume()
        
    }
    
    // NS Device Status Response Processor
    func updateDeviceStatusDisplay(jsonDeviceStatus: [[String:AnyObject]]) {
        self.clearLastInfoData(index: 0)
        self.clearLastInfoData(index: 1)
        self.clearLastInfoData(index: 3)
        self.clearLastInfoData(index: 4)
        self.clearLastInfoData(index: 5)
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: device status") }
        if jsonDeviceStatus.count == 0 {
            return
        }
        
        //Process the current data first
        let lastDeviceStatus = jsonDeviceStatus[0] as [String : AnyObject]?
        
        //pump and uploader
        let formatter = ISO8601DateFormatter()
        formatter.formatOptions = [.withFullDate,
                                   .withTime,
                                   .withDashSeparatorInDate,
                                   .withColonSeparatorInTime]
        if let lastPumpRecord = lastDeviceStatus?["pump"] as! [String : AnyObject]? {
            if let lastPumpTime = formatter.date(from: (lastPumpRecord["clock"] as! String))?.timeIntervalSince1970  {
                if let reservoirData = lastPumpRecord["reservoir"] as? Double {
                    latestPumpVolume = reservoirData
                    tableData[5].value = String(format:"%.0f", reservoirData) + "U"
                } else {
                    latestPumpVolume = 50.0
                    tableData[5].value = "50+U"
                }
                
                if let uploader = lastDeviceStatus?["uploader"] as? [String:AnyObject] {
                    let upbat = uploader["battery"] as! Double
                    tableData[4].value = String(format:"%.0f", upbat) + "%"
                    UserDefaultsRepository.deviceBatteryLevel.value = upbat
                }
            }
        }
        
        // Loop
        if let lastLoopRecord = lastDeviceStatus?["loop"] as! [String : AnyObject]? {
            //print("Loop: \(lastLoopRecord)")
            if let lastLoopTime = formatter.date(from: (lastLoopRecord["timestamp"] as! String))?.timeIntervalSince1970  {
                UserDefaultsRepository.alertLastLoopTime.value = lastLoopTime
                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "lastLoopTime: " + String(lastLoopTime)) }
                if let failure = lastLoopRecord["failureReason"] {
                    LoopStatusLabel.text = "X"
                    latestLoopStatusString = "X"
                    if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Loop Failure: X") }
                } else {
                    var wasEnacted = false
                    if let enacted = lastLoopRecord["enacted"] as? [String:AnyObject] {
                        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Loop: Was Enacted") }
                        wasEnacted = true
                        if let lastTempBasal = enacted["rate"] as? Double {

                        }
                    }
                    if let iobdata = lastLoopRecord["iob"] as? [String:AnyObject] {
                        tableData[0].value = String(format:"%.2f", (iobdata["iob"] as! Double))
                        latestIOB = String(format:"%.2f", (iobdata["iob"] as! Double))
                    }
                    if let cobdata = lastLoopRecord["cob"] as? [String:AnyObject] {
                        tableData[1].value = String(format:"%.0f", cobdata["cob"] as! Double)
                        latestCOB = String(format:"%.0f", cobdata["cob"] as! Double)
                    }
                    if let predictdata = lastLoopRecord["predicted"] as? [String:AnyObject] {
                        let prediction = predictdata["values"] as! [Double]
                        PredictionLabel.text = bgUnits.toDisplayUnits(String(Int(prediction.last!)))
                        PredictionLabel.textColor = UIColor.systemPurple
                        if UserDefaultsRepository.downloadPrediction.value && latestLoopTime < lastLoopTime {
                            predictionData.removeAll()
                            var predictionTime = lastLoopTime
                            let toLoad = Int(UserDefaultsRepository.predictionToLoad.value * 12)
                            var i = 0
                            while i <= toLoad {
                                if i < prediction.count {
                                    let sgvValue = Int(round(prediction[i]))
                                    // Skip values higher than 600
                                    if sgvValue <= 600 {
                                        let prediction = ShareGlucoseData(sgv: sgvValue, date: predictionTime, direction: "flat")
                                        predictionData.append(prediction)
                                    }
                                    predictionTime += 300
                                }
                                i += 1
                            }
                            
                            let predMin = prediction.min()
                            let predMax = prediction.max()
                            tableData[9].value = bgUnits.toDisplayUnits(String(predMin!)) + "/" + bgUnits.toDisplayUnits(String(predMax!))
                            
                            updatePredictionGraph()
                        }
                    }
                    if let recBolus = lastLoopRecord["recommendedBolus"] as? Double {
                        tableData[8].value = String(format:"%.2fU", recBolus)
                    }
                    if let loopStatus = lastLoopRecord["recommendedTempBasal"] as? [String:AnyObject] {
                        if let tempBasalTime = formatter.date(from: (loopStatus["timestamp"] as! String))?.timeIntervalSince1970 {
                            var lastBGTime = lastLoopTime
                            if bgData.count > 0 {
                                lastBGTime = bgData[bgData.count - 1].date
                            }
                            if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "tempBasalTime: " + String(tempBasalTime)) }
                            if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "lastBGTime: " + String(lastBGTime)) }
                            if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "wasEnacted: " + String(wasEnacted)) }
                            if tempBasalTime > lastBGTime && !wasEnacted {
                                LoopStatusLabel.text = "⏀"
                                latestLoopStatusString = "⏀"
                                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Open Loop: recommended temp. temp time > bg time, was not enacted") }
                            } else {
                                LoopStatusLabel.text = "↻"
                                latestLoopStatusString = "↻"
                                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Looping: recommended temp, but temp time is < bg time and/or was enacted") }
                            }
                        }
                    } else {
                        LoopStatusLabel.text = "↻"
                        latestLoopStatusString = "↻"
                        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Looping: no recommended temp") }
                    }
                    
                }
                
                if ((TimeInterval(Date().timeIntervalSince1970) - lastLoopTime) / 60) > 15 {
                    LoopStatusLabel.text = "⚠"
                    latestLoopStatusString = "⚠"
                }
                latestLoopTime = lastLoopTime
            } // end lastLoopTime
        } // end lastLoop Record

        if let lastLoopRecord = lastDeviceStatus?["openaps"] as! [String : AnyObject]? {
            if let lastLoopTime = formatter.date(from: (lastDeviceStatus?["created_at"] as! String))?.timeIntervalSince1970  {
                UserDefaultsRepository.alertLastLoopTime.value = lastLoopTime
                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "lastLoopTime: " + String(lastLoopTime)) }
                if let failure = lastLoopRecord["failureReason"] {
                    LoopStatusLabel.text = "X"
                    latestLoopStatusString = "X"
                    if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Loop Failure: X") }
                } else {
                    var wasEnacted = false
                    if let enacted = lastLoopRecord["enacted"] as? [String:AnyObject] {
                        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Loop: Was Enacted") }
                        wasEnacted = true
                        if let lastTempBasal = enacted["rate"] as? Double {
                            
                        }
                    }

                    if let iobdata = lastLoopRecord["iob"] as? [String:AnyObject] {
                        tableData[0].value = String(format:"%.2f", (iobdata["iob"] as! Double))
                        latestIOB = String(format:"%.2f", (iobdata["iob"] as! Double))
                    }
                    if let cobdata = lastLoopRecord["enacted"] as? [String:AnyObject] {
                        tableData[1].value = String(format:"%.1f", cobdata["COB"] as! Double)
                        latestCOB = String(format:"%.1f", cobdata["COB"] as! Double)
                    }
                    if let recbolusdata = lastLoopRecord["enacted"] as? [String:AnyObject] {
                        tableData[8].value = String(format:"%.2fU", recbolusdata["insulinReq"] as! Double)
                    }
                    if let autosensdata = lastLoopRecord["enacted"] as? [String:AnyObject] {
                        let sens = autosensdata["sensitivityRatio"] as! Double * 100.0
                        tableData[11].value = String(format:"%.0f", sens) + "%"
                    }
                    
                    //Picks COB prediction if available, else UAM, else IOB, else ZT
                    //Ideal is to predict all 4 in Loop Follow but this is a quick start
                    var graphtype = ""
                    var predictioncolor = UIColor.systemGray
                    PredictionLabel.textColor = predictioncolor
                    if let enactdata = lastLoopRecord["enacted"] as? [String:AnyObject] {
                        if let predbgdata = enactdata["predBGs"] as? [String:AnyObject] {
                            if predbgdata["COB"] != nil {
                                graphtype="COB"
                                predictioncolor = UIColor.systemYellow
                                PredictionLabel.textColor = predictioncolor
                            }
                            else if predbgdata["UAM"] != nil {
                                graphtype="UAM"
                                predictioncolor = UIColor.systemOrange
                                PredictionLabel.textColor = predictioncolor
                            }
                            else if predbgdata["IOB"] != nil {
                                graphtype="IOB"
                                predictioncolor = UIColor.systemBlue
                                PredictionLabel.textColor = predictioncolor
                            }
                            else {
                                graphtype="ZT"
                                predictioncolor = UIColor.systemGreen
                                PredictionLabel.textColor = predictioncolor
                            }
                            
                            let graphdata = predbgdata[graphtype] as! [Double]
                            
                            if let eventualdata = lastLoopRecord["enacted"] as? [String:AnyObject] {
                                if let eventualBGValue = eventualdata["eventualBG"] as? NSNumber {
                                    let eventualBGStringValue = String(describing: eventualBGValue)
                                    PredictionLabel.text = bgUnits.toDisplayUnits(eventualBGStringValue)
                                }
                            }
                            
                            if UserDefaultsRepository.downloadPrediction.value && latestLoopTime < lastLoopTime {
                                predictionData.removeAll()
                                var predictionTime = lastLoopTime
                                let toLoad = Int(UserDefaultsRepository.predictionToLoad.value * 12)
                                var i = 0
                                while i <= toLoad {
                                    if i < graphdata.count {
                                        let prediction = ShareGlucoseData(sgv: Int(round(graphdata[i])), date: predictionTime, direction: "flat")
                                        predictionData.append(prediction)
                                        predictionTime += 300
                                    }
                                    i += 1
                                }
                                
                            }
                            
                            let predMin = graphdata.min()
                            let predMax = graphdata.max()
                            tableData[9].value = bgUnits.toDisplayUnits(String(predMin!)) + "/" + bgUnits.toDisplayUnits(String(predMax!))
                            
                            updatePredictionGraph(color: predictioncolor)
                        }
                    }
                    
                    if let loopStatus = lastLoopRecord["recommendedTempBasal"] as? [String:AnyObject] {
                        if let tempBasalTime = formatter.date(from: (loopStatus["timestamp"] as! String))?.timeIntervalSince1970 {
                            var lastBGTime = lastLoopTime
                            if bgData.count > 0 {
                                lastBGTime = bgData[bgData.count - 1].date
                            }
                            if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "tempBasalTime: " + String(tempBasalTime)) }
                            if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "lastBGTime: " + String(lastBGTime)) }
                            if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "wasEnacted: " + String(wasEnacted)) }
                            if tempBasalTime > lastBGTime && !wasEnacted {
                                LoopStatusLabel.text = "⏀"
                                latestLoopStatusString = "⏀"
                                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Open Loop: recommended temp. temp time > bg time, was not enacted") }
                            } else {
                                LoopStatusLabel.text = "↻"
                                latestLoopStatusString = "↻"
                                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Looping: recommended temp, but temp time is < bg time and/or was enacted") }
                            }
                        }
                    } else {
                        LoopStatusLabel.text = "↻"
                        latestLoopStatusString = "↻"
                        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Looping: no recommended temp") }
                    }
                    
                }
                if ((TimeInterval(Date().timeIntervalSince1970) - lastLoopTime) / 60) > 15 {
                    LoopStatusLabel.text = "⚠"
                    latestLoopStatusString = "⚠"
                }
                latestLoopTime = lastLoopTime
            }
        }
        
        var oText = "" as String
        currentOverride = 1.0
        if let lastOverride = lastDeviceStatus?["override"] as! [String : AnyObject]? {
            if lastOverride["active"] as! Bool {
                
                let lastCorrection  = lastOverride["currentCorrectionRange"] as! [String: AnyObject]
                if let multiplier = lastOverride["multiplier"] as? Double {
                    currentOverride = multiplier
                    oText += String(format: "%.0f%%", (multiplier * 100))
                }
                else
                {
                    oText += "100%"
                }
                oText += " ("
                let minValue = lastCorrection["minValue"] as! Double
                let maxValue = lastCorrection["maxValue"] as! Double
                oText += bgUnits.toDisplayUnits(String(minValue)) + "-" + bgUnits.toDisplayUnits(String(maxValue)) + ")"
                
                tableData[3].value =  oText
            }
        }
        
        infoTable.reloadData()
        
        // Start the timer based on the timestamp
        let now = dateTimeUtils.getNowTimeIntervalUTC()
        let secondsAgo = now - latestLoopTime
        
        DispatchQueue.main.async {
            // if Loop is overdue over: 20:00, re-attempt every 5 minutes
            if secondsAgo >= (20 * 60) {
                self.startDeviceStatusTimer(time: (5 * 60))
                print("started 5 minute device status timer")
                
                // if the Loop is overdue: 10:00-19:59, re-attempt every minute
            } else if secondsAgo >= (10 * 60) {
                self.startDeviceStatusTimer(time: 60)
                print("started 1 minute device status timer")
                
                // if the Loop is overdue: 7:00-9:59, re-attempt every 30 seconds
            } else if secondsAgo >= (7 * 60) {
                self.startDeviceStatusTimer(time: 30)
                print("started 30 second device status timer")
                
                // if the Loop is overdue: 5:00-6:59 re-attempt every 10 seconds
            } else if secondsAgo >= (5 * 60) {
                self.startDeviceStatusTimer(time: 10)
                print("started 10 second device status timer")
                
                // We have a current Loop. Set timer to 5:10 from last reading
            } else {
                self.startDeviceStatusTimer(time: 310 - secondsAgo)
                let timerVal = 310 - secondsAgo
                print("started 5:10 device status timer: \(timerVal)")
            }
        }
    }
    
    // NS Carbs Today Web Call
    func webLoadNSCarbsToday() {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Download: Carbs Today") }
        let urlUser = UserDefaultsRepository.url.value

        let now = Date()
        let timeZone = TimeZone.current

        var calendar = Calendar(identifier: .gregorian)
        calendar.timeZone = timeZone

        var dateComponents = calendar.dateComponents(in: timeZone, from: now)
        dateComponents.hour = 0
        dateComponents.minute = 0
        dateComponents.second = 0

        guard let date = dateComponents.date else { fatalError("Invalid date components") }
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'"
        dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
        let utcDateString = dateFormatter.string(from: date)

        var urlString = urlUser + "/api/v1/treatments.json?count=1000&find[eventType]=Carb+Correction&find[created_at][$gte]=" + utcDateString
        if token != "" {
            urlString = urlUser + "/api/v1/treatments.json?token=" + token + "&count=1000&find[eventType]=Carb+Correction&find[created_at][$gte]=" + utcDateString
        }

        guard let urlData = URL(string: urlString) else {
            return
        }
        var request = URLRequest(url: urlData)
        request.cachePolicy = URLRequest.CachePolicy.reloadIgnoringLocalCacheData

        let task = URLSession.shared.dataTask(with: request) { data, response, error in
            guard error == nil else {
                return
            }
            guard let data = data else {
                return
            }

            let decoder = JSONDecoder()
            let entriesResponse = try? decoder.decode([carbsData].self, from: data)
            if let entriesResponse = entriesResponse {
                DispatchQueue.main.async {
                    self.updateCarbsToday(data: entriesResponse)
                }
            } else {
                return
            }
        }
        task.resume()
    }

    // NS CarbsToday Response Processor
    func updateCarbsToday(data: [carbsData]) {
        self.clearLastInfoData(index: 10)
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: carbs") }
        if data.count == 0 {
            return
        }

        let totalCarbs = data.reduce(0.0) { $0 + ($1.carbs ?? 0.0) }
        let resultString = String(format: "%.0f", totalCarbs)

        tableData[10].value = resultString

        infoTable.reloadData()
    }

    // NS Cage Web Call
    func webLoadNSCage() {
        let parameters: [String: String] = ["find[eventType]": NightscoutUtils.EventType.cage.rawValue, "count": "1"]
        NightscoutUtils.executeRequest(eventType: .cage, parameters: parameters) { (result: Result<[cageData], Error>) in
            switch result {
            case .success(let data):
                self.updateCage(data: data)
            case .failure(let error):
                print("Error: \(error.localizedDescription)")
            }
        }
    }
        
    // NS Cage Response Processor
    func updateCage(data: [cageData]) {
        self.clearLastInfoData(index: 7)
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: CAGE") }
        if data.count == 0 {
            return
        }
        
        let lastCageString = data[0].created_at
        
        let formatter = ISO8601DateFormatter()
        formatter.formatOptions = [.withFullDate,
                                   .withTime,
                                   .withDashSeparatorInDate,
                                   .withColonSeparatorInTime]
        UserDefaultsRepository.alertCageInsertTime.value = formatter.date(from: (lastCageString))?.timeIntervalSince1970 as! TimeInterval
        if let cageTime = formatter.date(from: (lastCageString))?.timeIntervalSince1970 {
            let now = dateTimeUtils.getNowTimeIntervalUTC()
            let secondsAgo = now - cageTime
            //let days = 24 * 60 * 60
            
            let formatter = DateComponentsFormatter()
            formatter.unitsStyle = .positional // Use the appropriate positioning for the current locale
            formatter.allowedUnits = [ .day, .hour ] // Units to display in the formatted string
            formatter.zeroFormattingBehavior = [ .pad ] // Pad with zeroes where appropriate for the locale
            
            let formattedDuration = formatter.string(from: secondsAgo)
            tableData[7].value = formattedDuration ?? ""
        }
        infoTable.reloadData()
    }
    
    // NS Sage Web Call
    func webLoadNSSage() {
        let lastDateString = dateTimeUtils.nowMinus10DaysTimeInterval()
        
        let parameters: [String: String] = [
            "find[eventType]": NightscoutUtils.EventType.sage.rawValue,
            "find[created_at][$gte]": lastDateString,
            "count": "1"
        ]
        
        NightscoutUtils.executeRequest(eventType: .sage, parameters: parameters) { (result: Result<[cageData], Error>) in
            switch result {
            case .success(let data):
                DispatchQueue.main.async {
                    self.updateSage(data: data)
                }
            case .failure(let error):
                print("Failed to fetch data: \(error.localizedDescription)")
            }
        }
    }
        
    // NS Sage Response Processor
    func updateSage(data: [cageData]) {
        self.clearLastInfoData(index: 6)
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process/Display: SAGE") }
        if data.count == 0 {
            return
        }
        
        var lastSageString = data[0].created_at
        
        let formatter = ISO8601DateFormatter()
        formatter.formatOptions = [.withFullDate,
                                   .withTime,
                                   .withDashSeparatorInDate,
                                   .withColonSeparatorInTime]
        UserDefaultsRepository.alertSageInsertTime.value = formatter.date(from: (lastSageString))?.timeIntervalSince1970 as! TimeInterval

        if UserDefaultsRepository.alertAutoSnoozeCGMStart.value && (dateTimeUtils.getNowTimeIntervalUTC() - UserDefaultsRepository.alertSageInsertTime.value < 7200){
            let snoozeTime = Date(timeIntervalSince1970: UserDefaultsRepository.alertSageInsertTime.value + 7200)
            UserDefaultsRepository.alertSnoozeAllTime.value = snoozeTime
            UserDefaultsRepository.alertSnoozeAllIsSnoozed.value = true
            guard let alarms = self.tabBarController!.viewControllers?[1] as? AlarmViewController else { return }
            alarms.reloadIsSnoozed(key: "alertSnoozeAllIsSnoozed", value: true)
            alarms.reloadSnoozeTime(key: "alertSnoozeAllTime", setNil: false, value: snoozeTime)
        }
        
        if let sageTime = formatter.date(from: (lastSageString as! String))?.timeIntervalSince1970 {
            let now = dateTimeUtils.getNowTimeIntervalUTC()
            let secondsAgo = now - sageTime
            let days = 24 * 60 * 60
            
            let formatter = DateComponentsFormatter()
            formatter.unitsStyle = .positional // Use the appropriate positioning for the current locale
            formatter.allowedUnits = [ .day, .hour] // Units to display in the formatted string
            formatter.zeroFormattingBehavior = [ .pad ] // Pad with zeroes where appropriate for the locale
            
            let formattedDuration = formatter.string(from: secondsAgo)
            tableData[6].value = formattedDuration ?? ""
        }
        infoTable.reloadData()
    }
    
    // NS Profile Web Call
    func webLoadNSProfile() {
        NightscoutUtils.executeRequest(eventType: .profile, parameters: [:]) { (result: Result<NSProfile, Error>) in
            switch result {
            case .success(let profileData):
                self.updateProfile(profileData: profileData)
            case .failure(let error):
                print("Error fetching profile data: \(error.localizedDescription)")
            }
        }
    }
    
    // NS Profile Response Processor
    func updateProfile(profileData: NSProfile) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: profile") }
        
        guard let store = profileData.store["default"] ?? profileData.store["Default"] else {
            return
        }
        
        basalProfile.removeAll()
        for basalEntry in store.basal {
            let entry = basalProfileStruct(value: basalEntry.value, time: basalEntry.time, timeAsSeconds: basalEntry.timeAsSeconds)
            basalProfile.append(entry)
        }
        
        // Don't process the basal or draw the graph until after the BG has been fully processeed and drawn
        if firstGraphLoad { return }

        var basalSegments: [DataStructs.basalProfileSegment] = []
        
        let graphHours = 24 * UserDefaultsRepository.downloadDays.value
        // Build scheduled basal segments from right to left by
        // moving pointers to the current midnight and current basal
        var midnight = dateTimeUtils.getTimeIntervalMidnightToday()
        var basalProfileIndex = basalProfile.count - 1
        var start = midnight + basalProfile[basalProfileIndex].timeAsSeconds
        var end = dateTimeUtils.getNowTimeIntervalUTC()
        // Move back until we're in the graph range
        while start > end {
            basalProfileIndex -= 1
            start = midnight + basalProfile[basalProfileIndex].timeAsSeconds
        }
        // Add records while they're still within the graph
        let graphStart = dateTimeUtils.getTimeIntervalNHoursAgo(N: graphHours)
        while end >= graphStart {
            let entry = DataStructs.basalProfileSegment(
                basalRate: basalProfile[basalProfileIndex].value, startDate: start, endDate: end)
            basalSegments.append(entry)
            
            basalProfileIndex -= 1
            if basalProfileIndex < 0 {
                basalProfileIndex = basalProfile.count - 1
                midnight = midnight.advanced(by: -24*60*60)
            }
            end = start - 1
            start = midnight + basalProfile[basalProfileIndex].timeAsSeconds
        }
        // reverse the result to get chronological order
        basalSegments.reverse()
        
        var firstPass = true
        // Runs the scheduled basal to the end of the prediction line
        var predictionEndTime = dateTimeUtils.getNowTimeIntervalUTC() + (3600 * UserDefaultsRepository.predictionToLoad.value)
        basalScheduleData.removeAll()
        
        for i in 0..<basalSegments.count {
            let timeStart = dateTimeUtils.getTimeIntervalNHoursAgo(N: graphHours)
            
            // This processed everything after the first one.
            if firstPass == false
                && basalSegments[i].startDate <= predictionEndTime {
                let startDot = basalGraphStruct(basalRate: basalSegments[i].basalRate, date: basalSegments[i].startDate)
                basalScheduleData.append(startDot)
                var endDate = basalSegments[i].endDate
                
                // if it's the last one needed, set it to end at the prediction end time
                if endDate > predictionEndTime || i == basalSegments.count - 1 {
                    endDate = Double(predictionEndTime)
                }

                let endDot = basalGraphStruct(basalRate: basalSegments[i].basalRate, date: endDate)
                basalScheduleData.append(endDot)
            }
            
            // we need to manually set the first one
            // Check that this is the first one and there are no existing entries
            if firstPass == true {
                // check that the timestamp is > the current entry and < the next entry
                if timeStart >= basalSegments[i].startDate && timeStart < basalSegments[i].endDate {
                    // Set the start time to match the BG start
                    let startDot = basalGraphStruct(basalRate: basalSegments[i].basalRate, date: Double(timeStart + (60 * 5)))
                    basalScheduleData.append(startDot)
                    
                    // set the enddot where the next one will start
                    var endDate = basalSegments[i].endDate
                    let endDot = basalGraphStruct(basalRate: basalSegments[i].basalRate, date: endDate)
                    basalScheduleData.append(endDot)
                    firstPass = false
                }
            }
        }
        
        if UserDefaultsRepository.graphBasal.value {
            updateBasalScheduledGraph()
        }
        
    }
    
    // NS Treatments Web Call
    // Downloads Basal, Bolus, Carbs, BG Check, Notes, Overrides
    func WebLoadNSTreatments() {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Download: Treatments") }
        if !UserDefaultsRepository.downloadTreatments.value { return }
        
        let graphHours = 24 * UserDefaultsRepository.downloadDays.value
        let startTimeString = dateTimeUtils.nowMinusNHoursTimeInterval(N: graphHours)
        
        let parameters: [String: String] = ["find[created_at][$gte]": startTimeString]
        
        NightscoutUtils.executeDynamicRequest(eventType: .treatments, parameters: parameters) { (result: Result<Any, Error>) in
            switch result {
            case .success(let data):
                if let entries = data as? [[String: AnyObject]] {
                    DispatchQueue.main.async {
                        self.updateTreatments(entries: entries)
                    }
                } else {
                    print("Error: Unexpected data structure")
                }
            case .failure(let error):
                print("Error: \(error.localizedDescription)")
            }
        }
    }
    
    // Process and split out treatments to individual tasks
    func updateTreatments(entries: [[String:AnyObject]]) {
        
        var tempBasal: [[String:AnyObject]] = []
        var bolus: [[String:AnyObject]] = []
        var carbs: [[String:AnyObject]] = []
        var temporaryOverride: [[String:AnyObject]] = []
        var note: [[String:AnyObject]] = []
        var bgCheck: [[String:AnyObject]] = []
        var suspendPump: [[String:AnyObject]] = []
        var resumePump: [[String:AnyObject]] = []
        var pumpSiteChange: [[String:AnyObject]] = []
        var cgmSensorStart: [[String:AnyObject]] = []
        
        for i in 0..<entries.count {
            let entry = entries[i] as [String : AnyObject]?
            switch entry?["eventType"] as! String {
                case "Temp Basal":
                    tempBasal.append(entry!)
                case "Correction Bolus":
                    bolus.append(entry!)
                case "Bolus":
                    bolus.append(entry!)
                case "SMB":
                    bolus.append(entry!)
                case "Meal Bolus":
                    carbs.append(entry!)
                    bolus.append(entry!)
                case "Carb Correction":
                    carbs.append(entry!)
                case "Temporary Override":
                    temporaryOverride.append(entry!)
                case "Temporary Target":
                    temporaryOverride.append(entry!)
                case "Note":
                    note.append(entry!)
                    print("Note: \(String(describing: entry))")
                case "BG Check":
                    bgCheck.append(entry!)
                case "Suspend Pump":
                    suspendPump.append(entry!)
                case "Resume Pump":
                    resumePump.append(entry!)
                case "Pump Site Change":
                    pumpSiteChange.append(entry!)
                case "Sensor Start":
                    cgmSensorStart.append(entry!)
                default:
                    print("No Match: \(String(describing: entry))")
            }
        }
        // end of for loop
        
        if tempBasal.count > 0 {
                   processNSBasals(entries: tempBasal)
               } else {
                   if basalData.count < 0 {
                       clearOldTempBasal()
                   }
               }
               if bolus.count > 0 {
                   processNSBolus(entries: bolus)
               } else {
                   if bolusData.count > 0 {
                       clearOldBolus()
                   }
               }
               if carbs.count > 0 {
                   processNSCarbs(entries: carbs)
               } else {
                   if carbData.count > 0 {
                       clearOldCarb()
                   }
               }
               if bgCheck.count > 0 {
                   processNSBGCheck(entries: bgCheck)
               } else {
                   if bgCheckData.count > 0 {
                       clearOldBGCheck()
                   }
               }
               if temporaryOverride.count > 0 {
                   processNSOverrides(entries: temporaryOverride)
               } else {
                   if overrideGraphData.count > 0 {
                       clearOldOverride()
                   }
               }
               if suspendPump.count > 0 {
                   processSuspendPump(entries: suspendPump)
               } else {
                   if suspendGraphData.count > 0 {
                       clearOldSuspend()
                   }
               }
               if resumePump.count > 0 {
                   processResumePump(entries: resumePump)
               } else {
                   if resumeGraphData.count > 0 {
                       clearOldResume()
                   }
               }
               if cgmSensorStart.count > 0 {
                   processSensorStart(entries: cgmSensorStart)
               } else {
                   if sensorStartGraphData.count > 0 {
                       clearOldSensor()
                   }
               }
               if note.count > 0 {
                   processNotes(entries: note)
               } else {
                   if noteGraphData.count > 0 {
                       clearOldNotes()
                   }
               }
    }
    
    func clearOldTempBasal()
    {
        basalData.removeAll()
        updateBasalGraph()
    }
    
    func clearOldBolus()
    {
        bolusData.removeAll()
        updateBolusGraph()
    }
    
    func clearOldCarb()
    {
        carbData.removeAll()
        updateCarbGraph()
    }
    
    func clearOldBGCheck()
    {
        bgCheckData.removeAll()
        updateBGCheckGraph()
    }
    
    func clearOldOverride()
    {
        overrideGraphData.removeAll()
        updateOverrideGraph()
    }
    
    func clearOldSuspend()
    {
        suspendGraphData.removeAll()
        updateSuspendGraph()
    }
    
    func clearOldResume()
    {
        resumeGraphData.removeAll()
        updateResumeGraph()
    }
    
    func clearOldSensor()
    {
        sensorStartGraphData.removeAll()
        updateSensorStart()
    }
    
    func clearOldNotes()
    {
        noteGraphData.removeAll()
        updateNotes()
    }
    
    // NS Temp Basal Response Processor
    func processNSBasals(entries: [[String:AnyObject]]) {
        self.clearLastInfoData(index: 2)
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Basal") }
        // due to temp basal durations, we're going to destroy the array and load everything each cycle for the time being.
        basalData.removeAll()
        
        var lastEndDot = 0.0
        
        var tempArray = entries
        tempArray.reverse()
        for i in 0..<tempArray.count {
            let currentEntry = tempArray[i] as [String : AnyObject]?
            var basalDate: String
            if currentEntry?["timestamp"] != nil {
                basalDate = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                basalDate = currentEntry?["created_at"] as! String
            } else {
                continue
            }
            var strippedZone = String(basalDate.dropLast())
            strippedZone = strippedZone.replacingOccurrences(of: "\\.\\d+", with: "", options: .regularExpression)
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            guard let dateString = dateFormatter.date(from: strippedZone) else { continue }
            let dateTimeStamp = dateString.timeIntervalSince1970
            guard let basalRate = currentEntry?["absolute"] as? Double else {
                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "ERROR: Null Basal entry")}
                continue
            }
            
            let midnightTime = dateTimeUtils.getTimeIntervalMidnightToday()
            // Setting end dots
            var duration = 0.0
            do {
                duration = try currentEntry?["duration"] as! Double
            } catch {
                print("No Duration Found")
            }
            
            // This adds scheduled basal wherever there is a break between temps. can't check the prior ending on the first item. it is 24 hours old, so it isn't important for display anyway
            if i > 0 {
                let priorEntry = tempArray[i - 1] as [String : AnyObject]?
                var priorBasalDate: String
                if priorEntry?["timestamp"] != nil {
                    priorBasalDate = priorEntry?["timestamp"] as! String
                } else if currentEntry?["created_at"] != nil {
                    priorBasalDate = priorEntry?["created_at"] as! String
                } else {
                    continue
                }
                var priorStrippedZone = String(priorBasalDate.dropLast())
                priorStrippedZone = priorStrippedZone.replacingOccurrences(of: "\\.\\d+", with: "", options: .regularExpression)
                let priorDateFormatter = DateFormatter()
                priorDateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
                priorDateFormatter.locale = Locale(identifier: "en_US")
                priorDateFormatter.timeZone = TimeZone(abbreviation: "UTC")
                guard let priorDateString = dateFormatter.date(from: priorStrippedZone) else { continue }
                let priorDateTimeStamp = priorDateString.timeIntervalSince1970
                let priorDuration = priorEntry?["duration"] as? Double ?? 0.0
                // if difference between time stamps is greater than the duration of the last entry, there is a gap. Give a 15 second leeway on the timestamp
                if Double( dateTimeStamp - priorDateTimeStamp ) > Double( (priorDuration * 60) + 15 ) {
                    
                    var scheduled = 0.0
                    var midGap = false
                    var midGapTime: TimeInterval = 0
                    var midGapValue: Double = 0
                    // cycle through basal profiles.
                    // TODO figure out how to deal with profile changes that happen mid-gap
                    for b in 0..<self.basalScheduleData.count {
                        
                        if (priorDateTimeStamp + (priorDuration * 60)) >= basalScheduleData[b].date {
                            scheduled = basalScheduleData[b].basalRate
                            
                            // deal with mid-gap scheduled basal change
                            // don't do it on the last scheudled basal entry
                            if b < self.basalScheduleData.count - 1 {
                                if dateTimeStamp > self.basalScheduleData[b + 1].date {
                                   // midGap = true
                                    // TODO: finish this to handle mid-gap items without crashing from overlapping entries
                                    midGapTime = self.basalScheduleData[b + 1].date
                                    midGapValue = self.basalScheduleData[b + 1].basalRate
                                }
                            }
                            
                        }
                        
                    }
                    
                    // Make the starting dot at the last ending dot
                    let startDot = basalGraphStruct(basalRate: scheduled, date: Double(priorDateTimeStamp + (priorDuration * 60)))
                    basalData.append(startDot)
                        
                       
                    if midGap {
                        // Make the ending dot at the new scheduled basal
                        let endDot1 = basalGraphStruct(basalRate: scheduled, date: Double(midGapTime))
                        basalData.append(endDot1)
                        // Make the starting dot at the scheduled Time
                        let startDot2 = basalGraphStruct(basalRate: midGapValue, date: Double(midGapTime))
                        basalData.append(startDot2)
                        // Make the ending dot at the new basal value
                        let endDot2 = basalGraphStruct(basalRate: midGapValue, date: Double(dateTimeStamp))
                        basalData.append(endDot2)
                        
                    } else {
                        // Make the ending dot at the new starting dot
                        let endDot = basalGraphStruct(basalRate: scheduled, date: Double(dateTimeStamp))
                        basalData.append(endDot)
                    }
                        

                }
            }
            
            // Make the starting dot
            let startDot = basalGraphStruct(basalRate: basalRate, date: Double(dateTimeStamp))
            basalData.append(startDot)
            
            // Make the ending dot
            // If it's the last one and has no duration, extend it for 30 minutes past the start. Otherwise set ending at duration
            // duration is already set to 0 if there is no duration set on it.
            //if i == tempArray.count - 1 && dateTimeStamp + duration <= dateTimeUtils.getNowTimeIntervalUTC() {
            if i == tempArray.count - 1 && duration == 0.0 {
                lastEndDot = dateTimeStamp + (30 * 60)
                latestBasal = String(format:"%.2f", basalRate)
            } else {
                lastEndDot = dateTimeStamp + (duration * 60)
                latestBasal = String(format:"%.2f", basalRate)
            }
            
            // Double check for overlaps of incorrectly ended TBRs and sent it to end when the next one starts if it finds a discrepancy
            if i < tempArray.count - 1 {
                let nextEntry = tempArray[i + 1] as [String : AnyObject]?
                var nextBasalDate: String
                if nextEntry?["timestamp"] != nil {
                    nextBasalDate = nextEntry?["timestamp"] as! String
                } else if currentEntry?["created_at"] != nil {
                    nextBasalDate = nextEntry?["created_at"] as! String
                } else {
                    continue
                }
                var nextStrippedZone = String(nextBasalDate.dropLast())
                nextStrippedZone = nextStrippedZone.replacingOccurrences(of: "\\.\\d+", with: "", options: .regularExpression)
                let nextDateFormatter = DateFormatter()
                nextDateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
                nextDateFormatter.locale = Locale(identifier: "en_US")
                nextDateFormatter.timeZone = TimeZone(abbreviation: "UTC")
                guard let nextDateString = dateFormatter.date(from: nextStrippedZone) else { continue }
                let nextDateTimeStamp = nextDateString.timeIntervalSince1970
                if nextDateTimeStamp < (dateTimeStamp + (duration * 60)) {
                    lastEndDot = nextDateTimeStamp
                }
            }
            
            let endDot = basalGraphStruct(basalRate: basalRate, date: Double(lastEndDot))
            basalData.append(endDot)
            
            
        }
        
        // If last  basal was prior to right now, we need to create one last scheduled entry
        if lastEndDot <= dateTimeUtils.getNowTimeIntervalUTC() {
            var scheduled = 0.0
            // cycle through basal profiles.
            // TODO figure out how to deal with profile changes that happen mid-gap
            for b in 0..<self.basalProfile.count {
                let scheduleTimeYesterday = self.basalProfile[b].timeAsSeconds + dateTimeUtils.getTimeIntervalMidnightYesterday()
                let scheduleTimeToday = self.basalProfile[b].timeAsSeconds + dateTimeUtils.getTimeIntervalMidnightToday()
                // check the prior temp ending to the profile seconds from midnight
                print("yesterday " + String(scheduleTimeYesterday))
                print("today " + String(scheduleTimeToday))
                if lastEndDot >= scheduleTimeToday {
                    scheduled = basalProfile[b].value
                }
            }
            
            latestBasal = String(format:"%.2f", scheduled)
            // Make the starting dot at the last ending dot
            let startDot = basalGraphStruct(basalRate: scheduled, date: Double(lastEndDot))
            basalData.append(startDot)
            
            // Make the ending dot 10 minutes after now
            let endDot = basalGraphStruct(basalRate: scheduled, date: Double(Date().timeIntervalSince1970 + (60 * 10)))
            basalData.append(endDot)
            
        }
        tableData[2].value = latestBasal
        infoTable.reloadData()
        if UserDefaultsRepository.graphBasal.value {
            updateBasalGraph()
        }
        infoTable.reloadData()
    }

    // NS Meal Bolus Response Processor
    func processNSBolus(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Bolus") }
        // because it's a small array, we're going to destroy and reload every time.
        bolusData.removeAll()
        var lastFoundIndex = 0
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var bolusDate: String
            if currentEntry?["timestamp"] != nil {
                bolusDate = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                bolusDate = currentEntry?["created_at"] as! String
            } else {
                continue
            }
            
            // fix to remove millisecond (after period in timestamp) for FreeAPS users
            var strippedZone = String(bolusDate.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            guard let dateString = dateFormatter.date(from: strippedZone) else { continue }
            let dateTimeStamp = dateString.timeIntervalSince1970

            guard let bolus = currentEntry?["insulin"] as? Double else { continue }
                let sgv = findNearestBGbyTime(needle: dateTimeStamp, haystack: bgData, startingIndex: lastFoundIndex)
                lastFoundIndex = sgv.foundIndex
                
                if dateTimeStamp < (dateTimeUtils.getNowTimeIntervalUTC() + (60 * 60)) {
                    // Make the dot
                    let dot = bolusGraphStruct(value: bolus, date: Double(dateTimeStamp), sgv: Int(sgv.sgv + 20))
                    bolusData.append(dot)
                }
            
        }
        
        if UserDefaultsRepository.graphBolus.value {
            updateBolusGraph()
        }
        
    }
   
    // NS Carb Bolus Response Processor
    func processNSCarbs(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Carbs") }
        // because it's a small array, we're going to destroy and reload every time.
        carbData.removeAll()
        var lastFoundIndex = 0
        var lastFoundBolus = 0
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var carbDate: String
            if currentEntry?["timestamp"] != nil {
                carbDate = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                carbDate = currentEntry?["created_at"] as! String
            } else {
                continue
            }
            
            
            let absorptionTime = currentEntry?["absorptionTime"] as? Int ?? 0
            
            // Fix for FreeAPS milliseconds in timestamp
            var strippedZone = String(carbDate.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            guard let dateString = dateFormatter.date(from: strippedZone) else { continue }
            var dateTimeStamp = dateString.timeIntervalSince1970
            
            guard let carbs = currentEntry?["carbs"] as? Double else {
                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "ERROR: Null Carb entry")}
                continue
            }
            let sgv = findNearestBGbyTime(needle: dateTimeStamp, haystack: bgData, startingIndex: lastFoundIndex)
            lastFoundIndex = sgv.foundIndex
            
            var offset = -50
            if sgv.sgv < Double(topBG - 100) {
                let bolusTime = findNearestBolusbyTime(timeWithin: 300, needle: dateTimeStamp, haystack: bolusData, startingIndex: lastFoundBolus)
                lastFoundBolus = bolusTime.foundIndex
                
                if bolusTime.offset {
                    offset = 70
                } else {
                    offset = 20
                }
            }
            
            if dateTimeStamp < (dateTimeUtils.getNowTimeIntervalUTC() + (60 * 60)) {
                // Make the dot
                let dot = carbGraphStruct(value: Double(carbs), date: Double(dateTimeStamp), sgv: Int(sgv.sgv + Double(offset)), absorptionTime: absorptionTime)
                carbData.append(dot)
            }
            
            
            
        }
        
        if UserDefaultsRepository.graphCarbs.value {
            updateCarbGraph()
        }
        
        
    }
    
    // NS Suspend Pump Response Processor
    func processSuspendPump(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Suspend Pump") }
        // because it's a small array, we're going to destroy and reload every time.
        suspendGraphData.removeAll()
        var lastFoundIndex = 0
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var date: String
            if currentEntry?["timestamp"] != nil {
                date = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                date = currentEntry?["created_at"] as! String
            } else {
                return
            }
            // Fix for FreeAPS milliseconds in timestamp
            var strippedZone = String(date.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            let dateString = dateFormatter.date(from: strippedZone)
            let dateTimeStamp = dateString!.timeIntervalSince1970

            let sgv = findNearestBGbyTime(needle: dateTimeStamp, haystack: bgData, startingIndex: lastFoundIndex)
            lastFoundIndex = sgv.foundIndex
            
            if dateTimeStamp < (dateTimeUtils.getNowTimeIntervalUTC() + (60 * 60)) {
                // Make the dot
                let dot = DataStructs.timestampOnlyStruct(date: Double(dateTimeStamp), sgv: Int(sgv.sgv))
                suspendGraphData.append(dot)
            }
        }
        if UserDefaultsRepository.graphOtherTreatments.value {
        updateSuspendGraph()
        }
        
    }
    
    // NS Resume Pump Response Processor
    func processResumePump(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Resume Pump") }
        // because it's a small array, we're going to destroy and reload every time.
        resumeGraphData.removeAll()
        var lastFoundIndex = 0
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var date: String
            if currentEntry?["timestamp"] != nil {
                date = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                date = currentEntry?["created_at"] as! String
            } else {
                return
            }
            // Fix for FreeAPS milliseconds in timestamp
            var strippedZone = String(date.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            let dateString = dateFormatter.date(from: strippedZone)
            let dateTimeStamp = dateString!.timeIntervalSince1970

            let sgv = findNearestBGbyTime(needle: dateTimeStamp, haystack: bgData, startingIndex: lastFoundIndex)
            lastFoundIndex = sgv.foundIndex
            
            if dateTimeStamp < (dateTimeUtils.getNowTimeIntervalUTC() + (60 * 60)) {
                // Make the dot
                let dot = DataStructs.timestampOnlyStruct(date: Double(dateTimeStamp), sgv: Int(sgv.sgv))
                resumeGraphData.append(dot)
            }
        }
        if UserDefaultsRepository.graphOtherTreatments.value {
        updateResumeGraph()
        }
        
    }
    
    // NS Sensor Start Response Processor
    func processSensorStart(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Sensor Start") }
        // because it's a small array, we're going to destroy and reload every time.
        sensorStartGraphData.removeAll()
        var lastFoundIndex = 0
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var date: String
            if currentEntry?["timestamp"] != nil {
                date = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                date = currentEntry?["created_at"] as! String
            } else {
                return
            }
            // Fix for FreeAPS milliseconds in timestamp
            var strippedZone = String(date.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            let dateString = dateFormatter.date(from: strippedZone)
            let dateTimeStamp = dateString!.timeIntervalSince1970

            let sgv = findNearestBGbyTime(needle: dateTimeStamp, haystack: bgData, startingIndex: lastFoundIndex)
            lastFoundIndex = sgv.foundIndex
            
            if dateTimeStamp < (dateTimeUtils.getNowTimeIntervalUTC() + (60 * 60)) {
                // Make the dot
                let dot = DataStructs.timestampOnlyStruct(date: Double(dateTimeStamp), sgv: Int(sgv.sgv))
                sensorStartGraphData.append(dot)
            }
        }
        if UserDefaultsRepository.graphOtherTreatments.value {
        updateSensorStart()
        }
        
    }
    
    // NS Note Response Processor
    func processNotes(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Notes") }
        // because it's a small array, we're going to destroy and reload every time.
        noteGraphData.removeAll()
        var lastFoundIndex = 0
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var date: String
            if currentEntry?["timestamp"] != nil {
                date = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                date = currentEntry?["created_at"] as! String
            } else {
                return
            }
            // Fix for FreeAPS milliseconds in timestamp
            var strippedZone = String(date.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            let dateString = dateFormatter.date(from: strippedZone)
            let dateTimeStamp = dateString!.timeIntervalSince1970

            let sgv = findNearestBGbyTime(needle: dateTimeStamp, haystack: bgData, startingIndex: lastFoundIndex)
            lastFoundIndex = sgv.foundIndex
            
            guard let thisNote = currentEntry?["notes"] as? String else { continue }
            
            if dateTimeStamp < (dateTimeUtils.getNowTimeIntervalUTC() + (60 * 60)) {
                // Make the dot
                let dot = DataStructs.noteStruct(date: Double(dateTimeStamp), sgv: Int(sgv.sgv), note: thisNote)
                noteGraphData.append(dot)
            }
        }
        if UserDefaultsRepository.graphOtherTreatments.value {
        updateNotes()
        }
        
    }
    
    // NS BG Check Response Processor
    func processNSBGCheck(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: BG Check") }
        // because it's a small array, we're going to destroy and reload every time.
        bgCheckData.removeAll()
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var date: String
            if currentEntry?["timestamp"] != nil {
                date = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                date = currentEntry?["created_at"] as! String
            } else {
                return
            }
            // Fix for FreeAPS milliseconds in timestamp
            var strippedZone = String(date.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            let dateString = dateFormatter.date(from: strippedZone)
            let dateTimeStamp = dateString!.timeIntervalSince1970
            
            guard let sgv = currentEntry?["glucose"] as? Int else {
                if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "ERROR: Non-Int Glucose entry")}
                continue
            }
            
            if dateTimeStamp < (dateTimeUtils.getNowTimeIntervalUTC() + (60 * 60)) {
                // Make the dot
                //let dot = ShareGlucoseData(value: Double(carbs), date: Double(dateTimeStamp), sgv: Int(sgv.sgv))
                let dot = ShareGlucoseData(sgv: sgv, date: Double(dateTimeStamp), direction: "")
                bgCheckData.append(dot)
            }
            
            
            
        }
        
        if UserDefaultsRepository.graphOtherTreatments.value {
            updateBGCheckGraph()
        }
        
        
    }
    
    // NS Override Response Processor
    func processNSOverrides(entries: [[String:AnyObject]]) {
        if UserDefaultsRepository.debugLog.value { self.writeDebugLog(value: "Process: Overrides") }
        // because it's a small array, we're going to destroy and reload every time.
        overrideGraphData.removeAll()
        for i in 0..<entries.count {
            let currentEntry = entries[entries.count - 1 - i] as [String : AnyObject]?
            var date: String
            if currentEntry?["timestamp"] != nil {
                date = currentEntry?["timestamp"] as! String
            } else if currentEntry?["created_at"] != nil {
                date = currentEntry?["created_at"] as! String
            } else {
                return
            }
            // Fix for FreeAPS milliseconds in timestamp
            var strippedZone = String(date.dropLast())
            strippedZone = strippedZone.components(separatedBy: ".")[0]
            
            let dateFormatter = DateFormatter()
            dateFormatter.dateFormat = "yyyy-MM-dd'T'HH:mm:ss"
            dateFormatter.locale = Locale(identifier: "en_US")
            dateFormatter.timeZone = TimeZone(abbreviation: "UTC")
            let dateString = dateFormatter.date(from: strippedZone)
            var dateTimeStamp = dateString!.timeIntervalSince1970
            let graphHours = 24 * UserDefaultsRepository.downloadDays.value
            if dateTimeStamp < dateTimeUtils.getTimeIntervalNHoursAgo(N: graphHours) {
                dateTimeStamp = dateTimeUtils.getTimeIntervalNHoursAgo(N: graphHours)
            }
            
            var multiplier: Double = 1.0
            if currentEntry?["insulinNeedsScaleFactor"] != nil {
                multiplier = currentEntry?["insulinNeedsScaleFactor"] as! Double
            }
            var duration: Double = 5.0
            if let durationType = currentEntry?["durationType"] as? String {
                if i == entries.count - 1 {
                    duration = dateTimeUtils.getNowTimeIntervalUTC() - dateTimeStamp + (60 * 60)
                }
            } else {
                duration = (currentEntry?["duration"] as? Double)!
                duration = duration * 60
            }
            
            // Skip overrides that aren't 5 minutes long. This prevents overlapping that causes bars to not display.
            if duration < 300 { continue }
            
            guard let enteredBy = currentEntry?["enteredBy"] as? String else { continue }
            guard let reason = currentEntry?["reason"] as? String else { continue }
            
            var range: [Int] = []
            if let ranges = currentEntry?["correctionRange"] as? [Int] {
                if ranges.count == 2 {
                    guard let low = ranges[0] as? Int else { continue }
                    guard let high = ranges[1] as? Int else { continue }
                    range.append(low)
                    range.append(high)
                }
                
            } else {
                let low = currentEntry?["targetBottom"] as? Int
                let high = currentEntry?["targetTop"] as? Int
                
                if (low == nil && high != nil) || (low != nil && high == nil) {
                    continue
                }
                
                if let l = low {
                    range.append(l)
                }
                
                if let h = high {
                    range.append(h)
                }
            }
                        
            let endDate = dateTimeStamp + (duration)

            let dot = DataStructs.overrideStruct(insulNeedsScaleFactor: multiplier, date: dateTimeStamp, endDate: endDate, duration: duration, correctionRange: range, enteredBy: enteredBy, reason: reason, sgv: -20)
            overrideGraphData.append(dot)
            
            
        }
        if UserDefaultsRepository.graphOtherTreatments.value {
        updateOverrideGraph()
        }
        
    }
}