TempTrack-iOS/TempTrack/Temperature/TemperatureValue.swift

import Foundation

enum TemperatureValue {
    case notFound
    case invalidMeasurement
    case value(Double)
    
    init(byte: UInt8) {
        switch byte {
        case 0:
            self = .notFound
        case 1:
            self = .invalidMeasurement
        default:
            self = .value(Double(byte) * 0.5 - 40)
        }
    }
    
    var optionalValue: Double? {
        if case .value(let val) = self {
            return val
        }
        return nil
    }
    
    var isValid: Bool {
        if case .value = self {
            return true
        }
        return false
    }
    
    var text: String {
        switch self {
        case .notFound:
            return "No sensor"
        case .invalidMeasurement:
            return "Invalid"
        case .value(let value):
            return String(format:" %.1f°C", value)
        }
    }
}