global class Kit19SMS  {
    global String sendMessage(List<String> numbers, String message){
        
        system.debug('sent sms done');
        
        String num = String.join(numbers,','); 
        String user;
        String pass;
        String send;
        
        API_Credentials__mdt[] logcredentials = [Select id,Username__c,password__c,senderId__c FROM API_Credentials__mdt WHERE developername = 'Kit19' LIMIT 1];
        for(API_Credentials__mdt login:logcredentials){
            
            user = login.Username__c;
            pass = login.password__c;
            send = login.senderId__c;  
        }
        
        system.debug('user=='+user);
         system.debug('pass=='+pass);
         system.debug('send=='+send);
        
        HttpRequest req = new HttpRequest();
        req.setHeader('Content-Length', '0');
        req.setEndpoint('https://www.kit19.com/ComposeSMS.aspx?username='+ user +'&password='+ pass +'&sender='+ send +'&to=' + num + 
                        '&message=' + EncodingUtil.URLENCODE(message,'UTF-8')  + '&priority=1&dnd=1&unicode=0');
        req.setMethod('POST');
        system.debug('EndPoint========'+req);
        system.debug('Sent========');
        Http http = new Http();
        //if (test.isRunningTest()) Test.setMock(HttpCalloutMock.class, new MockHttpResponseGenerator());
        
        try{
            HTTPResponse res = http.send(req);
            system.debug('response' + res);
        }
        catch(Exception e){
            system.debug('Exception e' + e);
        }
        return null;
    }
    global String sendPersonalizedMessage(String numbers, Id templateId){
        return null;
    }
}