Guide voice management

				
					global class CaseExtensionExample extends AxiaVM.Extension{

    global override String seekPhone(String params) {
       
        // We need the results of parent call
        String previous = super.seekPhone(params);

        Map<String, Object> res = (Map<String, Object>) JSON.deserializeUntyped(previous);
        String result_type = (String) res.get('type');
        List<Object> result_values = (List<Object>) res.get('values');

       
        if( result_type == 'SOBJECT') {
            Id theId = (ID)result_values[0];
           
            // break if the object is neither an account or a contact
            if (!compare(theId.getSobjectType(), 'Account') && !compare(theId.getSobjectType(), 'Contact') ){
                return previous;
            }
           
            // get lasts open cases
            List<Case> open_cases = [SELECT Id FROM Case WHERE
                (AccountId = :theID OR ContactId = :theID)
                AND isClosed=False AND isDeleted = False
                ORDER BY CreatedDate DESC NULLS LAST
            ];
           
            // if I have one or more result, I open the most recent one
            if (open_cases.size() > 0) {
                return AxiaVM.SeekPhone.response('SOBJECT', (String) open_cases[0].Id);
            }
            // if I want to create Case if no cases opened
            /*else {
                Case new_one = Case(...);
                insert new_one;
                return AxiaVM.SeekPhone.response('SOBJECT', (String) new_one.Id);
            }*/
        }

       
        return previous;
    }

    /**
    * Helper that compare the type of the object
    */
    private boolean compare(Schema.SObjectType compare, String checkType){
        try{
            Schema.SObjectType targetType = Schema.getGlobalDescribe().get(checkType);
            if(targetType == null){
                return false;
            }else if( compare == targetType){
                return true;
            }else{
                return false;
            }
        }catch(Exception e){
            //handle exception
                    return false;
        }
    }

}