package diffblue.age.web;
   
   import diffblue.legalage.LegalAgePredicate;
   
   import org.restlet.data.Status;
   import org.restlet.resource.Get;
   import org.restlet.resource.ServerResource;
   import org.json.JSONObject;
   import java.time.LocalDate;
  import java.time.format.DateTimeFormatter;
  import java.time.format.DateTimeParseException;
  
  public class AgeResource extends ServerResource {
  
      @Get("txt")
      public String legalAgeValidator() {
          var legalAgePredicate = new LegalAgePredicate();
          var birthdayString = getQueryValue("birthday");
          var response = new JSONObject();
  
          final LocalDate birthday;
          try {
              birthday = LocalDate.parse(birthdayString, DateTimeFormatter.ISO_DATE);
          } catch (DateTimeParseException e) {
              response.put("error", "Invalid birthday format. Use yyyy-mm-dd.");
              setStatus(Status.CLIENT_ERROR_BAD_REQUEST);
              return response.toString();
          }
  
          var isLegalAge = legalAgePredicate.test(birthday);
          var message = isLegalAge ? "You are of legal age." : "You are under legal age.";
          response.put("message", "Happy Birthday! " + message);
          response.put("birthday", birthday.toString());
          response.put("isLegalAge", isLegalAge);
          return response.toString();
      }
  }