namespace Starter_assignment;

class Program {
    static void Main() {
        Course course = new Course();
        bool running = true;
        
        while (running) {
            Console.WriteLine("\n1. Add Student" +
                              "\n2. View All Students" +
                              "\n3. View All Groups" +
                              "\n4. Search Student by Number" +
                              "\n5. Show Students in a Group" +
                              "\n6. Show Statistics" +
                              "\n7. Exit" +
                              "\nChoose an option: ");
            
            string choice = Console.ReadLine();
            
            switch (choice)
            {
                case "1":
                    Console.Write("Enter student name: ");
                    string name = Console.ReadLine();
                    Console.Write("Enter student number: ");
                    if (int.TryParse(Console.ReadLine(), out int studentNumber)) {
                        course.AddStudent(name, studentNumber);
                    } else {
                        Console.WriteLine("Invalid student number.");
                    }
                    break;
                case "2":
                    course.ViewAllStudents();
                    break;
                case "3":
                    course.ViewAllGroups();
                    break;
                case "4":
                    Console.Write("Enter student number: ");
                    if (int.TryParse(Console.ReadLine(), out int searchNumber)) {
                        course.SearchByStudentNumber(searchNumber);
                    }
                    break;
                case "5":
                    Console.Write("Enter group name: ");
                    string groupName = Console.ReadLine();
                    course.SearchByGroup(groupName);
                    break;
                case "6":
                    course.ShowStatistics();
                    break;
                case "7":
                    running = false;
                    break;
                default:
                    Console.WriteLine("Invalid option, try again.");
                    break;
            }
        }
    }
}