KCal.swift

import Apollo

public struct KCal: JSONDecodable, JSONEncodable {
    let value: Double
    
    public init(jsonValue value: Apollo.JSONValue) throws {
        guard let value = value as? Double else { throw JSONDecodingError.wrongType }
        guard (value.isZero || value.isNormal) && value >= 0.0 else { throw JSONDecodingError.couldNotConvert(value: value, to: KCal.self) }
        self.value = value
    }
    
    public var jsonValue: JSONValue {
        return self.value
    }
}