loopfollow/LoopFollow/Controllers/Nightscout/DeviceStatusLoop.swift

// LoopFollow
// DeviceStatusLoop.swift

import Charts
import Foundation
import HealthKit
import UIKit

extension MainViewController {
    func DeviceStatusLoop(formatter: ISO8601DateFormatter, lastLoopRecord: [String: AnyObject]) {
        Storage.shared.device.value = "Loop"

        if Storage.shared.remoteType.value == .trc {
            Storage.shared.remoteType.value = .none
        }

        if let lastLoopTime = formatter.date(from: (lastLoopRecord["timestamp"] as! String))?.timeIntervalSince1970 {
            let previousLastLoopTime = Observable.shared.alertLastLoopTime.value ?? 0
            Observable.shared.alertLastLoopTime.value = lastLoopTime
            if let failure = lastLoopRecord["failureReason"] {
                LoopStatusLabel.text = "X"
                latestLoopStatusString = "X"
            } else {
                var wasEnacted = false
                if let enacted = lastLoopRecord["enacted"] as? [String: AnyObject] {
                    wasEnacted = true
                    if let lastTempBasal = enacted["rate"] as? Double {}
                }

                // ISF
                let profileISF = profileManager.currentISF()
                if let profileISF = profileISF {
                    infoManager.updateInfoData(type: .isf, value: profileISF)
                }

                // Carb Ratio (CR)
                let profileCR = profileManager.currentCarbRatio()
                if let profileCR = profileCR {
                    infoManager.updateInfoData(type: .carbRatio, value: profileCR)
                }

                // Target
                let profileTargetLow = profileManager.currentTargetLow()
                let profileTargetHigh = profileManager.currentTargetHigh()

                if let profileTargetLow = profileTargetLow, let profileTargetHigh = profileTargetHigh, profileTargetLow != profileTargetHigh {
                    infoManager.updateInfoData(type: .target, firstValue: profileTargetLow, secondValue: profileTargetHigh, separator: .dash)
                } else if let profileTargetLow = profileTargetLow {
                    infoManager.updateInfoData(type: .target, value: profileTargetLow)
                }

                // IOB
                if let insulinMetric = InsulinMetric(from: lastLoopRecord["iob"], key: "iob") {
                    infoManager.updateInfoData(type: .iob, value: insulinMetric)
                    latestIOB = insulinMetric
                }

                // COB
                if let cobMetric = CarbMetric(from: lastLoopRecord["cob"], key: "cob") {
                    infoManager.updateInfoData(type: .cob, value: cobMetric)
                    latestCOB = cobMetric
                }

                if let predictdata = lastLoopRecord["predicted"] as? [String: AnyObject] {
                    let prediction = predictdata["values"] as! [Double]
                    PredictionLabel.text = Localizer.toDisplayUnits(String(Int(prediction.last!)))
                    PredictionLabel.textColor = UIColor.systemPurple
                    if Storage.shared.downloadPrediction.value, previousLastLoopTime < lastLoopTime {
                        predictionData.removeAll()
                        var predictionTime = lastLoopTime
                        let toLoad = Int(Storage.shared.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
                        }

                        if let predMin = prediction.min(), let predMax = prediction.max() {
                            let formattedMin = Localizer.toDisplayUnits(String(predMin))
                            let formattedMax = Localizer.toDisplayUnits(String(predMax))
                            let value = "\(formattedMin)/\(formattedMax)"
                            infoManager.updateInfoData(type: .minMax, value: value)
                        }

                        updatePredictionGraph()
                    }
                } else {
                    predictionData.removeAll()
                    infoManager.clearInfoData(type: .minMax)
                    updatePredictionGraph()
                }
                if let recBolus = lastLoopRecord["recommendedBolus"] as? Double {
                    let formattedRecBolus = String(format: "%.2fU", recBolus)
                    infoManager.updateInfoData(type: .recBolus, value: formattedRecBolus)
                    Observable.shared.deviceRecBolus.value = 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 tempBasalTime > lastBGTime, !wasEnacted {
                            LoopStatusLabel.text = "⏀"
                            latestLoopStatusString = "⏀"
                        } else {
                            LoopStatusLabel.text = "↻"
                            latestLoopStatusString = "↻"
                        }
                    }
                } else {
                    LoopStatusLabel.text = "↻"
                    latestLoopStatusString = "↻"
                }
            }
        }
    }
}