import Foundation

/// Erfundene Werte für den Simulator, damit sich die Ansichten ohne iPhone und
/// ohne Fahrzeug prüfen lassen. Eingeschaltet über `CAMPER_DEMO=1`:
///
///     xcrun simctl launch --terminate-running-process booted \
///         de.fritob.CamperMonitor.watchkitapp
///     # mit SIMCTL_CHILD_CAMPER_DEMO=1 davor
///
/// Im normalen Betrieb wird hiervon nichts ausgeführt.
enum WatchDemo {

    private static let profile = Profile(name: "Kastenwagen", symbol: "box.truck",
                                         trackWidth: 1.85, wheelbase: 3.50)

    private static let solarID = UUID(uuidString: "00000000-0000-0000-0000-000000000050")!
    private static let batteryID = UUID(uuidString: "00000000-0000-0000-0000-0000000000A0")!
    private static let fridgeID = UUID(uuidString: "00000000-0000-0000-0000-0000000000F0")!
    private static let levelID = UUID(uuidString: "00000000-0000-0000-0000-0000000000E0")!

    /// `seconds` läuft weiter, damit sich die Neigung bewegt – sonst zeigt der
    /// Ausrichtungs-Assistent nie einen Trend.
    static func payload(at seconds: Double) -> WatchPayload {
        let now = Date()
        let swing = sin(seconds / 8)

        var level = LevelState()
        level.pitch = 1.4 * swing + 0.3
        level.roll = -0.9 * cos(seconds / 11)
        level.pitchOffset = 0.4
        level.rollOffset = -0.2

        var solar = DeviceSnapshot(deviceID: solarID, timestamp: now, rssi: -58)
        solar.state = "Konstantspannung (Absorption)"
        solar.metrics = [
            Metric("pv_power", "PV-Leistung", 284 + 40 * swing, unit: "W", precision: 0, primary: true),
            Metric("battery_voltage", "Batteriespannung", 14.12, unit: "V", precision: 2),
            Metric("battery_current", "Ladestrom", 18.6, unit: "A", precision: 1),
        ]

        var battery = DeviceSnapshot(deviceID: batteryID, timestamp: now, rssi: -64)
        battery.state = "Lädt"
        battery.metrics = [
            Metric("soc", "Ladezustand", 78.4, unit: "%", precision: 1, primary: true),
            Metric("voltage", "Spannung", 13.66, unit: "V", precision: 2),
            Metric("current", "Strom", 18.6, unit: "A", precision: 1),
            Metric("capacity", "Restkapazität", 156.8, unit: "Ah", precision: 1),
        ]

        var fridge = DeviceSnapshot(deviceID: fridgeID, timestamp: now, rssi: -66)
        fridge.state = "Kompressor läuft"
        fridge.metrics = [
            Metric("temperature", "Innentemperatur", 6, unit: "°C", precision: 0, primary: true),
            Metric("target", "Solltemperatur", 4, unit: "°C", precision: 0),
            Metric("battery_voltage", "Bordspannung", 12.7, unit: "V", precision: 1),
        ]

        return WatchPayload(
            generatedAt: now,
            profile: profile,
            isRadioReady: true,
            radioStatus: "Demo-Modus",
            devices: [
                WatchDevice(id: levelID, name: "Nivellierung", role: .leveling,
                            link: .live, snapshot: level.snapshot(deviceID: levelID, rssi: -70),
                            level: level, orientation: .identity, fridge: nil),
                WatchDevice(id: batteryID, name: "Bulltron 200 Ah", role: .bms,
                            link: .live, snapshot: battery, level: nil,
                            orientation: nil, fridge: nil),
                WatchDevice(id: solarID, name: "Solar Dach", role: .solarCharger,
                            link: .live, snapshot: solar, level: nil,
                            orientation: nil, fridge: nil),
                WatchDevice(id: fridgeID, name: "Kühlbox", role: .fridge,
                            link: .live, snapshot: fridge, level: nil, orientation: nil,
                            fridge: WatchFridge(isPoweredOn: true, isEco: true, isLocked: false,
                                                isDualZone: false, unitSymbol: "°C",
                                                leftTarget: 4, leftCurrent: 6,
                                                rightTarget: nil, rightCurrent: nil,
                                                minTarget: -20, maxTarget: 20,
                                                batteryVolts: 12.7)),
            ])
    }
}