cor-message-handler.swift

final class VoyagerMessageHandler: MessageHandler {
    var nextHandler: MessageHandler?
    
    func process(_ message: String) throws {
        let regex = #/^VYYR\s{1,4}(?<id>\d{1})\s{1,4}(?<distance>\d{1,}\.\d{1,3})\s{1,}/#
        let match = try regex.firstMatch(in: message)
        
        if let match {
            print("🛸 La sonda Voyager \(match.id) se encuentra a \(match.distance) millones de kilómetros")
        } else if let nextHandler {
            try nextHandler.process(message)
        } else {
            throw MessageError.unknown
        }
    }
}