c968-wgu-project/C968Project/Product.cs

using System.ComponentModel;

namespace C968Project;

public class Product
{
    public BindingList<Part> AssociatedParts { get; set; } = new();
    public int ProductId { get; set; }
    public string Name { get; set; }
    public float Price { get; set; }
    public int InStock { get; set; }
    public int Min { get; set; }
    public int Max { get; set; }
    
    public void AddAssociatedPart(Part part)
    {
        if (AssociatedParts.Contains(part))
        {
            MessageBox.Show($"Product {Name} already has an association with part {part.Name}", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
            return;
        }

        AssociatedParts.Add(part);
    }

    public bool RemoveAssociatedPart(int partIndex)
    {
        var part = LookupAssociatedPart(partIndex);

        if (part is null)
        {
            MessageBox.Show($"An error occured while trying to locate the part at index {partIndex}.", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
            return false;
        }

        AssociatedParts.Remove(part);
        return true;
    }

    public Part? LookupAssociatedPart(int partIndex)
    {
        if (partIndex > AssociatedParts.Count)
        {
            MessageBox.Show($"Error trying to locate part at index {partIndex}. Out of bounds.", "", MessageBoxButtons.OK, MessageBoxIcon.Error);
            return null;
        }

        return AssociatedParts[partIndex];
    }
}