using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.Entities;
using Tanshu.Accounts.Repository;

namespace Tanshu.Accounts.PointOfSale
{
    public partial class CustomerListForm : Form
    {
        private IList<Customer> _list;
        public CustomerListForm()
        {
            InitializeComponent();
        }

        private void btnAdd_Click(object sender, EventArgs e)
        {
            using (var frm = new CustomerForm(null))
                frm.ShowDialog();
            _list = CustomerBI.List();
            bsList.DataSource = _list;
        }

        private void CustomerListForm_Load(object sender, EventArgs e)
        {
            ShowGrid();
        }
        private void ShowGrid()
        {
            _list = CustomerBI.List();
            bsList.DataSource = _list;
        }

        private void btnEdit_Click(object sender, EventArgs e)
        {
            var id = ((Customer)bsList.Current).CustomerID;
            using (var frm = new CustomerForm(id))
                frm.ShowDialog();
            _list = CustomerBI.List();
            bsList.DataSource = _list;
        }

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

        public Customer SelectedItem
        {
            get
            {
                if (bsList.Position >= 0)
                {
                    var item = _list[bsList.Position];
                    if (item != null)
                        return item;
                }
                return _list.First(x => x.CustomerID == Constants.CASH_CUSTOMER);
            }
        }

        private void dgvCustomers_CellDoubleClick(object sender, DataGridViewCellEventArgs e)
        {
            this.Close();
        }
    }
}