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

namespace Tanshu.Accounts.Management
{
    public partial class QuantityForm : Form
    {
        private IList<TextBox> textBoxes;
        public QuantityForm()
        {
            InitializeComponent();
        }

        private void Sale_Analysis_Form_Load(object sender, EventArgs e)
        {
            dtpDate.Value = DateTime.Today;

            textBoxes = new List<TextBox>();
            for (int i = 0; i < 8; i++)
            {
                var text = "";
                switch (i)
                {
                    case 0:
                        text = "1 - Dark";
                        break;
                    case 1:
                        text = "2 - Wheat";
                        break;
                    case 2:
                        text = "3 - Premium";
                        break;
                    case 3:
                        text = "4 - Light";
                        break;
                    case 4:
                        text = "5 - Dragon";
                        break;
                    case 5:
                        text = "6 - Festival";
                        break;
                    case 6:
                        text = "7 - Vanilla";
                        break;
                    case 7:
                        text = "8 - Strong";
                        break;
                }
                var label = new Label()
                                {
                                    Name = "label" + (i + 1).ToString(CultureInfo.InvariantCulture),
                                    AutoSize = true,
                                    Text = text
                                };
                flpProducts.Controls.Add(label);
                var textBox = new TextBox()
                                {
                                    Name = "textBox" + (i + 1).ToString(CultureInfo.InvariantCulture),
                                    Width = 400,
                                    Height = 22,
                                    Tag = new object[] { (i + 1), text }
                                };
                textBoxes.Add(textBox);
                flpProducts.Controls.Add(textBox);
            }
        }

        private void btnGo_Click(object sender, EventArgs e)
        {
            foreach (var textBox in textBoxes)
            {
                var startDate = dtpDate.Value.Date.AddHours(7);
                var finishDate = startDate.AddDays(1);

                var baseCode = (int)(((object[])textBox.Tag)[0]);
                var text = (string)(((object[])textBox.Tag)[1]);
                foreach (var item in textBox.Text.Split(','))
                {
                    var newQuantity = TryConvert(item);
                    var quantity = GetQuantity(baseCode, startDate, finishDate);

                    if (MessageBox.Show(text + " "  + startDate.ToString("dd-MMM-yyyy") + " " + quantity.ToString(), "Quantity of Beer", MessageBoxButtons.YesNo,
                                        MessageBoxIcon.Information, MessageBoxDefaultButton.Button2) == DialogResult.Yes &&
                        quantity > newQuantity && newQuantity > 0)
                    {
                        MessageBox.Show(SetQuantity(baseCode, newQuantity, startDate, finishDate).ToString());
                    }
                    startDate = startDate.AddDays(1);
                    finishDate = finishDate.AddDays(1);
                }
            }
        }
        private decimal TryConvert(string amount)
        {
            decimal result = 0;
            decimal.TryParse(amount, out result);
            return result;
        }
        private decimal GetQuantity(int baseCode, DateTime startDate, DateTime finishDate)
        {
            using (var bi = new ManagementBI())
                return bi.GetQuantity(baseCode, startDate, finishDate);
        }
        private decimal SetQuantity(int baseCode, decimal quantity, DateTime startDate, DateTime finishDate)
        {
            using (var bi = new ManagementBI())
                return bi.SetQuantity(baseCode, quantity, startDate, finishDate);
        }

        private void btnGetClipboard_Click(object sender, EventArgs e)
        {
            //Clipboard format -- Date,BaseCode,Quantity"
            var fmtCsv = DataFormats.CommaSeparatedValue;

            // read the CSV
            var dataobject = Clipboard.GetDataObject();
            if (dataobject == null)
            {
                MessageBox.Show(@"No Data in clipboard");
                return;
            }
            var stream = (System.IO.Stream)dataobject.GetData(fmtCsv);
            var enc = new System.Text.UTF8Encoding();

            IFormatProvider culture = new CultureInfo("en-US", true);

            using (var reader = new System.IO.StreamReader(stream, enc))
            {
                using (var bi = new ManagementBI())
                {
                    string line;
                    while ((line = reader.ReadLine()) != null)
                    {
                        DateTime startDate;
                        int baseCode;
                        decimal quantity;
                        var data = line.Split(',');
                        if (!DateTime.TryParseExact(data[0], "dd-MMM-yyyy", culture, DateTimeStyles.NoCurrentDateDefault, out startDate))
                            continue;
                        var finishDate = startDate.AddDays(1).AddHours(7);
                        startDate = startDate.AddHours(7);
                        if (!int.TryParse(data[1], out baseCode))
                            continue;
                        if (baseCode <= 0)
                            continue;
                        if (!decimal.TryParse(data[2], out quantity))
                            continue;

                        bi.SetQuantity(baseCode, quantity, startDate, finishDate);
                    }
                }
            }
        }
    }
}