LoopKit/LoopKitUI/ViewModels/CorrectionRangeOverridesEditorViewModel.swift at dev · loopkitdev/LoopKit · GitHub

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//
//  CorrectionRangeOverridesEditorViewModel.swift
//  LoopKitUI
//
//  Created by Nathaniel Hamming on 2021-03-15.
//  Copyright © 2021 LoopKit Authors. All rights reserved.
//

import Foundation
import HealthKit
import LoopKit

struct CorrectionRangeOverridesEditorViewModel {

    let correctionRangeOverrides: CorrectionRangeOverrides

    let suspendThreshold: GlucoseThreshold?

    let correctionRangeScheduleRange: ClosedRange<HKQuantity>

    let preset: CorrectionRangeOverrides.Preset

    let guardrail: Guardrail<HKQuantity>

    var saveCorrectionRangeOverride: (_ correctionRangeOverrides: CorrectionRangeOverrides) -> Void

    public init(therapySettingsViewModel: TherapySettingsViewModel,
                preset: CorrectionRangeOverrides.Preset,
                didSave: (() -> Void)? = nil)
    {
        self.correctionRangeOverrides = therapySettingsViewModel.correctionRangeOverrides
        self.suspendThreshold = therapySettingsViewModel.suspendThreshold
        self.correctionRangeScheduleRange = therapySettingsViewModel.correctionRangeScheduleRange
        self.guardrail = Guardrail.correctionRangeOverride(
            for: preset,
            correctionRangeScheduleRange: therapySettingsViewModel.correctionRangeScheduleRange,
            suspendThreshold: therapySettingsViewModel.suspendThreshold)
        self.preset = preset

        self.saveCorrectionRangeOverride = { [weak therapySettingsViewModel] correctionRangeOverrides in
            guard let therapySettingsViewModel = therapySettingsViewModel else {
                return
            }
            therapySettingsViewModel.saveCorrectionRangeOverride(preset: preset,
                                                                 correctionRangeOverrides: correctionRangeOverrides)
            didSave?()
        }
    }
}