using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Tanshu.Accounts.Entities;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.Helpers;

namespace Tanshu.Accounts.PointOfSale
{
    public partial class ModifierForm : Form
    {
        private IList<InventoryModifier> selection;
        private IList<Modifier> source;
        private IList<CheckBox> list;
        public ModifierForm(IList<Modifier> source, IList<InventoryModifier> selection)
        {
            InitializeComponent();
            this.selection = selection;
            this.source = source;
            list = new List<CheckBox>();
        }

        private void button_Click(object sender, EventArgs e)
        {
            CheckBox button = sender as CheckBox;
            if (button.CheckState == CheckState.Checked)
                selection.Add(new InventoryModifier() { Modifier = (Modifier)button.Tag });
            else
                selection.Remove(selection.First(x => x.Modifier.ModifierID == ((Modifier)button.Tag).ModifierID));
        }
        private void ModifierForm_Load(object sender, EventArgs e)
        {
            var size = new Point(75, 75);
            int count = 30;
            ButtonClickDelegate bcDelegate = new ButtonClickDelegate(button_Click);
            if (list.Count != 0)
            {
                for (int i = list.Count - 1; i >= 0; i--)
                {
                    list[i].Dispose();
                }
                list = new List<CheckBox>();
            }
            if (count > source.Count)
                count = source.Count;
            for (int i = 0; i < count; i++)
            {
                var control = new CheckBox()
                {
                    Name = i.ToString(),
                    Text = source[i].Name,
                    Width = size.X,
                    Height = size.Y,
                    Tag = source[i],
                    Appearance = Appearance.Button,
                    Checked = selection.Count(x => x.Modifier.ModifierID == source[i].ModifierID) > 0
                };
                control.Click += new EventHandler(bcDelegate);
                flpModifier.Controls.Add(control);
                list.Add(control);
            }
        }

        private void btnClose_Click(object sender, EventArgs e)
        {
            this.Close();
        }

    }
}