import Foundation

struct TemperatureMeasurement: Identifiable {
    
    var sensor0: TemperatureValue
    
    var sensor1: TemperatureValue
    
    var date: Date

    var id: Int {
        Int(date.timeIntervalSince1970.rounded())
    }

    var secondsAgo: Int {
        Int(date.timeIntervalSinceNow.rounded())
    }
}

private extension TemperatureValue {

    init(value: Double?) {
        if let value {
            self = .value(value)
        } else {
            self = .notFound
        }
    }
}

private extension TemperatureMeasurement {

    init(t0: Double?, t1: Double?, secs: Int) {
        self.sensor0 = .init(value: t0)
        self.sensor1 = .init(value: t1)
        self.date = Date().addingTimeInterval(TimeInterval(secs-3600))
    }

    init(t0: Double?, t1: Double?, min: Int) {
        self.init(t0: t0, t1: t1, secs: min * 60)
    }
}

extension TemperatureMeasurement {

    static let mockData: [TemperatureMeasurement] = {
        let temps: [(Double?, Double?)] = [
            (20, 14),
            (20, 13.5),
            (20.5, 13.5),
            (20.5, 13.5),
            (21, 14),
            (21, 14),
            (nil, 14.5),
            (nil, 14),
            (nil, 14.5),
            (nil, 14),
            (nil, 14),
            (nil, 14.5),
            (nil, 15),
            (5.0, 15),
            (4.5, 15.5),
            (4.5, 16),
            (4.0, 16.5),
            (3.0, 17),
            (3.0, 19),
            (2.5, 20),
            (2.5, 20.5),
            (2.0, 20.5),
            (1.0, 20.5),
            (0.5, 20.5),
            (0.0, 20),
            (0.0, 20),
            (-1.0, 21.0),
            (-0.5, 21.0),
            (-3.0, 21.0),
            (-3.5, 20.5),
            (-4.0, 20.5),
            (-5.0, 20.0),
            (-5.0, nil),
            (-5.5, nil),
            (-5.0, nil),
            (-5.5, nil),
            (-6.0, nil),
            (-5.0, nil),
            (nil, nil),
            (nil, nil),
            (nil, nil),
            (-5.0, nil),
            (-4.5, nil),
            (-4.0, 23.0),
            (5.0, 24.0),
            (7.0, 25.0),
            (8.0, 25.5),
            (8.5, 25.5),
            (10.0, 25.5),
            (10.5, 24.0),
            (10.5, 24.0),
            (10.5, 24.5),
            (12.0, 23.5),
            (12.5, 24.0),
            (12.0, 23.5),
            (14.0, 24.0),
            (15.0, 25.0),
            (15.0, 25.0),
            (15.5, 25.0),
            (15.0, 25.0),
        ]
        return temps.enumerated().map {
            TemperatureMeasurement(t0: $0.element.0, t1: $0.element.1, min: $0.offset)
        }
    }()
}