(function () {
    var arrivalQuery = 'u_date_of_arrivalONTomorrow@javascript:gs.beginningOfTomorrow()@javascript:gs.endOfTomorrow()',

        existingUsers = CiscoGuestUser.getGuestUserNames(),

        result = [];

    var guests = new GlideRecord('u_guest_registration_history');
    guests.addEncodedQuery(arrivalQuery);
    guests.query();

    while(guests.next()) {
        var guest = new CiscoGuestUser(guests);

        var actionIsSuccessful = guest.userExistsIn(existingUsers) ? guest.updateUser() : guest.createUser();

        //above methods return false if there's an error, error handling here
        var userInfo = guest.getGuestInfoAsString();
        if(!actionIsSuccessful) {
            result.push({
                state: 'error',
                userInfo: userInfo
            });
        } else {
            result.push({
                state: 'success',
                userInfo: userInfo
            });
        }

        var userName = guest.getCiscoUserName(),
            password = guest.getCiscoUserPassword();

        //to-do: workflow to automatically send pdfs with new user info
    }

    var failedReqs = result.filter(function(entry) {
        return entry.state == 'error';
    }),
        successfulReqs = result.filter(function(entry) {
        return entry.state == 'success';
    }),
        failedLog = failedReqs.map(function(entry){
        return entry.userInfo;
    }).join('\n\n'),
        successLog = successfulReqs.map(function(entry) {
        return entry.userInfo;
    }).join('\n\n');

    if(failedReqs.length > 0) {
        gs.log('Cisco guest user registration failed for users:\n\n\n' + failedLog + '\n\n\n\n' + 'Cisco guest user registration successful for users:\n\n\n' + successLog,'Create Guest Users in CISCO (Scheduled Script Execution)');
    } else {
        gs.log('Cisco guest user registration successful:\n\n\n' + successLog, 'Create Guest Users in CISCO (Scheduled Script Execution)');
    }
})();