Program.cs

using SimpleInventoryManagementSystem;

var controller = Configuration.BuildUserController();

while (true)
{
    Console.WriteLine("""
                      Please select an option:
                      1. Add product to inventory
                      2. Display all products
                      3. Find and display a product
                      4. Find and edit a product
                      5. Find and delete a product
                      else. Exit
                      """);
    var input = Console.In.ReadLine();

    switch (input)
    {
        case "1":
            await controller.AddProductAsync();
            break;
        case "2":
            await controller.DisplayProductsAsync();
            break;
        case "3":
            await controller.FindAndDisplayProductAsync();
            break;
        case "4":
            await controller.FindAndEditProductAsync();
            break;
        case "5":
            await controller.FindAndDeleteProductAsync();
            break;
        default:
            return 0;
    }
}