namespace ShoppingCart
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();

            Product meso = new Product("Месо", "Храна", 350);
            Product mleko = new Product("Млеко", "Храна", 60);
            Product vino = new Product("Вино", "Пијалок", 120);
            Product pivo = new Product("Пиво", "Пијалок", 42);
            Product shampon = new Product("Шампон", "Хигиена", 150);
            Product pasta = new Product("Паста за заби", "Хигиена", 70);

            lbProducts.Items.Add(meso);
            lbProducts.Items.Add(mleko);
            lbProducts.Items.Add(vino);
            lbProducts.Items.Add(pivo);
            lbProducts.Items.Add(shampon);
            lbProducts.Items.Add(pasta);
        }

        private void UpdateTotal()
        {
            float total = 0;
            foreach (ProductItem pi in lbCart.Items)
            {
                total += pi.Product.Price * pi.Quantity;
            }

            tbTotal.Text = String.Format("{0:0.00}", total);
        }

        private void lbProducts_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (lbProducts.SelectedIndex > -1)
            {
                Product selected = lbProducts.SelectedItem as Product;
                tbName.Text = selected.Name;
                tbCategory.Text = selected.Category;
                tbPrice.Text = String.Format("{0:0.00}", selected.Price);
            }
            else
            {
                tbName.Text = null;
                tbCategory.Text = null;
                tbPrice.Text = null;
            }
        }

        private void btnAddProduct_Click(object sender, EventArgs e)
        {
            AddProduct add = new AddProduct();
            if (add.ShowDialog() == System.Windows.Forms.DialogResult.OK)
            {
                lbProducts.Items.Add(add.nov);
            }
        }

        private void btnAddToCart_Click(object sender, EventArgs e)
        {
            if (lbProducts.SelectedIndex > -1)
            {
                Product selected = lbProducts.SelectedItem as Product;
                int q = (int)numUDAdd.Value;
                ProductItem pr = new ProductItem(selected, q);
                lbCart.Items.Add(pr);
                UpdateTotal();
            }
        }

        private void btnRemFromCart_Click(object sender, EventArgs e)
        {
            if (lbCart.SelectedIndex > -1)
            {
                lbCart.Items.RemoveAt(lbCart.SelectedIndex);
                UpdateTotal();
            }
        }

        private void btnRemProduct_Click(object sender, EventArgs e)
        {
            if (lbProducts.SelectedIndex > -1)
            {
                lbProducts.Items.RemoveAt(lbProducts.SelectedIndex);
            }
        }

        private void btnEmptyProducts_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("Избриши ги сите продукти?", "Дали навистина сакате да ги избришете сите продукти?", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.OK)
            {
                lbProducts.Items.Clear();
            }
        }

        private void btnEmptyCart_Click(object sender, EventArgs e)
        {
            if (MessageBox.Show("Испразни ја кошничката?", "Дали навистина сакате да ја испразните кошничката?", MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.OK)
            {
                lbCart.Items.Clear();}}
//------------------Forma AddProduct----------------------------------
namespace ShoppingCart
{
    public partial class AddProduct : Form
    {
        public Product nov;

        public AddProduct()
        {
            InitializeComponent();
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            float price;
            float.TryParse(tbPriceInAdd.Text, out price);
            nov = new Product(tbNameInAdd.Text, tbCategoryInAdd.Text, price);
            this.DialogResult = System.Windows.Forms.DialogResult.OK;
            Close();
        }

        private void tbNameInAdd_Validating(object sender, CancelEventArgs e)
        {
            if (tbNameInAdd.Text.Trim().Length == 0)
            {
                e.Cancel = true;
                errorProvider1.SetError(tbNameInAdd, "Внесете име!");
            }
            else
            {
                errorProvider1.SetError(tbNameInAdd, null);}}

        private void btnRemove_Click(object sender, EventArgs e){Close();}