extension Bolus {
    final class Provider: BaseProvider, BolusProvider {
        func getPumpSettings() async -> PumpSettings {
            await storage.retrieveAsync(OpenAPS.Settings.settings, as: PumpSettings.self)
                ?? PumpSettings(from: OpenAPS.defaults(for: OpenAPS.Settings.settings))
                ?? PumpSettings(insulinActionCurve: 6, maxBolus: 10, maxBasal: 2)
        }

        func getBasalProfile() async -> [BasalProfileEntry] {
            await storage.retrieveAsync(OpenAPS.Settings.basalProfile, as: [BasalProfileEntry].self)
                ?? [BasalProfileEntry](from: OpenAPS.defaults(for: OpenAPS.Settings.basalProfile))
                ?? []
        }

        func getCarbRatios() async -> CarbRatios {
            await storage.retrieveAsync(OpenAPS.Settings.carbRatios, as: CarbRatios.self)
                ?? CarbRatios(from: OpenAPS.defaults(for: OpenAPS.Settings.carbRatios))
                ?? CarbRatios(units: .grams, schedule: [])
        }

        func getBGTarget() async -> BGTargets {
            await storage.retrieveAsync(OpenAPS.Settings.bgTargets, as: BGTargets.self)
                ?? BGTargets(from: OpenAPS.defaults(for: OpenAPS.Settings.bgTargets))
                ?? BGTargets(units: .mgdL, userPreferredUnits: .mgdL, targets: [])
        }

        func getISFValues() async -> InsulinSensitivities {
            await storage.retrieveAsync(OpenAPS.Settings.insulinSensitivities, as: InsulinSensitivities.self)
                ?? InsulinSensitivities(from: OpenAPS.defaults(for: OpenAPS.Settings.insulinSensitivities))
                ?? InsulinSensitivities(
                    units: .mgdL,
                    userPreferredUnits: .mgdL,
                    sensitivities: []
                )
        }
    }
}