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

namespace Tanshu.Accounts.PointOfSale
{
    public partial class TaxEditForm : Form
    {
        private Guid? _taxID;
        public TaxEditForm(Guid taxID)
            : this()
        {
            _taxID = taxID;
        }

        public TaxEditForm()
        {
            InitializeComponent();
        }

        private void TaxEditForm_Load(object sender, EventArgs e)
        {
            Tax tax;
            if (_taxID.HasValue)
            {
                using (var bi = new TaxBI())
                {
                    tax = bi.Get(x => x.TaxID == _taxID.Value);
                    txtName.Text = tax.Name;
                    txtRate.Text = (tax.Rate * 100).ToString();
                }
            }
            txtName.Focus();
        }

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

        private void btnOk_Click(object sender, EventArgs e)
        {
            Tax tax;
            using (var bi = new TaxBI())
            {
                if (_taxID.HasValue)
                    tax = bi.Get(x => x.TaxID == _taxID.Value);
                else
                    tax = new Tax();

                if (string.IsNullOrEmpty(txtName.Text.Trim()))
                    return;
                tax.Name = txtName.Text.Trim();

                if (string.IsNullOrEmpty(txtRate.Text.Trim()))
                    txtRate.Text = "0";
                decimal rate;
                if (!decimal.TryParse(txtRate.Text, out rate) || (rate < 0 || rate > 100))
                {
                    MessageBox.Show("Tax Rate is not valid, it must be between 0 to 100 percent.");
                    txtRate.Focus();
                    return;
                }
                else 
                    tax.Rate = rate / 100;

                if (_taxID.HasValue)
                    bi.Update(tax);
                else
                    bi.Insert(tax);
                bi.SaveChanges();
            }
            MessageBox.Show("Update / Save Successful");
            this.Close();
        }
    }
}