public with sharing class LightningChallengeController {
    @AuraEnabled(cacheable=true)
    public static List<Challenge__c> getChallenges() {
        return [SELECT Id, Name, Description__c, Difficulty__c,
         Points__c, Status__c, Category__c
         FROM Challenge__c
         ORDER BY CreatedDate DESC];
    }

    @AuraEnabled
    public static ChallengeResult submitChallenge(String challengeId,String code) {
        
        return executeTests(challengeId, code);
    }
}