Version2.swift

// MARK: Version
extension Version: Equatable, Comparable {
    public func isEqual(_ version: Version?) -> Bool {
        guard let version: String = version?.version else { return false }
        return version.compare(self.version, options: String.CompareOptions.numeric) == .orderedSame
    }
    
    public func isGreater(_ version: Version?) -> Bool {
        guard let version: String = version?.version else { return false }
        return version.compare(self.version, options: String.CompareOptions.numeric) == .orderedAscending
    }
    
    public func isLower(_ version: Version?) -> Bool {
        guard let version: String = version?.version else { return false }
        return version.compare(self.version, options: String.CompareOptions.numeric) == .orderedDescending
    }
    
    public static func == (lhs: Version, rhs: Version) -> Bool {
        return lhs.isEqual(rhs)
    }
    
    public static func < (lhs: Version, rhs: Version) -> Bool {
        return lhs.isLower(rhs)
    }
    
    public static func > (lhs: Version, rhs: Version) -> Bool {
        return lhs.isGreater(rhs)
    }
    
    public static func <= (lhs: Version, rhs: Version) -> Bool {
        return lhs.isLower(rhs) || lhs.isEqual(rhs)
    }
    
    public static func >= (lhs: Version, rhs: Version) -> Bool {
        return lhs.isGreater(rhs) || lhs.isEqual(rhs)
    }
}