fn main() {

    let file_path = std::env::args()

        .nth(1)

        .expect("No file provided, should be the first argument");

    let file = std::fs::File::open(&file_path).expect("Could not open file");

    let calendar = load_ical(file).expect("Failed to load iCalendar data");

    for (index, object) in calendar.iter().enumerate() {

        let errors = validate_model(object).expect("Failed to validate iCalendar data");

        println!("Ran validation on object at index: {:?}", index);

        for error in &errors {

            if error.severity == ICalendarErrorSeverity::Warning {

                println!("Warning: {}", error);

            } else {

                println!("Error: {}", error);

            }

        if errors

            .iter()

            .filter(|e| e.severity == ICalendarErrorSeverity::Error)

            .count()

            == 0

        {

            println!("Object is valid");

        }

}