using BiskLog_Point_Of_Sale.Classes;
using BiskLog_Point_Of_Sale.Multiple_Login;
using BiskLog_Point_Of_Sale.Properties;
using Point_Of_Sale_Managment;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace BiskLog_Point_Of_Sale.Products_Module
{
    public partial class PriceAmendentForm : Form
    {
        SqlConnection cn;
        SqlCommand cm;
        DatabaseConn conn = new DatabaseConn();
        SqlTransaction transaction;
        List<ProductAmendment> products;
        public PriceAmendentForm(List<ProductAmendment> products)
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
            holding.Left = (ClientSize.Width - holding.Width) / 2;
            holding.Top = (ClientSize.Height - holding.Height) / 2;
            this.products = products;
        }

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

        private void exitBTN_MouseEnter(object sender, EventArgs e)
        {
            exitBTN.BackColor = Color.Crimson;
        }

        private void exitBTN_MouseLeave(object sender, EventArgs e)
        {
            exitBTN.BackColor = Color.Transparent;
        }

        private void PriceAmendentForm_Load(object sender, EventArgs e)
        {
            foreach (ProductAmendment product in products)
            {
                name.Text = product.productname;
                pcode.Text = product.productCode;
                txtDesc.Text = product.productDescription;
                if (String.IsNullOrEmpty(baseUnitCode.Text))
                {
                    baseName.Text = product.baseUnitName;
                    baseCurrent.Text = product.baseUnitprice;
                    baseUnitCode.Text = product.baseUnitCode;
                    baseNew.Enabled = true;
                    baseNew.Text = product.baseUnitprice; ;
                }
                 if (String.IsNullOrEmpty(unit1Code.Text))
                {
                    unit1Code.Text = product.unitDistinctive;
                    unit1Name.Text = product.unitName;
                    unit1Current.Text = product.unitprice;
                    unit1New.Enabled = true;
                    unit1New.Text = product.unitprice;
                }
                else if (String.IsNullOrEmpty(unit2Code.Text))
                {
                    unit2Code.Text = product.unitDistinctive;
                    unit2Name.Text = product.unitName;
                    unit2Current.Text = product.unitprice;
                    unit2New.Enabled = true;
                    unit2New.Text = product.unitprice;
                }
                else if (String.IsNullOrEmpty(unit3Code.Text))
                {
                    unit3Code.Text = product.unitDistinctive;
                    unit3Name.Text = product.unitName;
                    unit3Current.Text = product.unitprice;
                    unit3New.Enabled = true;
                    unit3New.Text = product.unitprice;
                }
                else if (String.IsNullOrEmpty(unit4Code.Text))
                {
                    unit4Code.Text = product.unitDistinctive;
                    unit4Name.Text = product.unitName;
                    unit4Current.Text = product.unitprice;
                    unit4New.Enabled = true;
                    unit4New.Text = product.unitprice;
                }
                else if (String.IsNullOrEmpty(unit5Code.Text))
                {
                    unit5Code.Text = product.unitDistinctive;
                    unit5Name.Text = product.unitName;
                    unit5Current.Text = product.unitprice;
                    unit5New.Enabled = true;
                    unit5New.Text = product.unitprice;
                }
            }
        }

        private async void btnSave_Click(object sender, EventArgs e)
        {
            holding.Visible = true;
            Task<int> task = new Task<int>(amendPricing);
            task.Start();
            int result = await task;
            if (result == 1)
            {
                this.DialogResult = DialogResult.OK;
                string Message = "You have successfully changed the pricing of " + name.Text;
                string Title = "Price changes successful";
                NoAction action = new NoAction(message: Message, title: Title);
                action.BringToFront();
                action.ShowDialog();
            }
            else
            {
                string Message = "An error occurred while changing the price of " + name.Text + " please try again later";
                string Title = "Error while making changes";
                NoAction action = new NoAction(message: Message, title: Title);
                action.BringToFront();
                action.ShowDialog();
            }
            holding.Visible = false;
        }

        public int amendPricing()
        {
            try
            {
                baseUnitCode.Invoke(new Action(() =>
                {
                    cn.Open();
                    transaction = cn.BeginTransaction();
                    if (!String.IsNullOrEmpty(baseUnitCode.Text) && !String.IsNullOrEmpty(baseNew.Text))
                    {
                        cm = new SqlCommand("Insert into tblPriceChanges (pcode,previous_price,current_price,change_date,branchID,countID) values " +
                        "(@pcode,@previous_price,@current_price,@change_date,@branchID,@countID)", cn);
                        cm.Parameters.AddWithValue("@pcode", pcode.Text);
                        cm.Parameters.AddWithValue("@previous_price", baseCurrent.Text);
                        cm.Parameters.AddWithValue("@current_price", baseNew.Text);
                        cm.Parameters.AddWithValue("@change_date", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffffff"));
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Parameters.AddWithValue("@countID", pcode.Text + Settings.Default.BranchID + DateTime.Now.ToString("yyyyMMddHHmmssfff"));
                        cm.Transaction = transaction;
                        cm.ExecuteNonQuery();
                        cm = new SqlCommand("Update tblProduct set price = @price where pcode = @pcode and branchID = @branchID", cn);
                        cm.Parameters.AddWithValue("@pcode", pcode.Text);
                        cm.Parameters.AddWithValue("@price", baseNew.Text);
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Transaction = transaction;
                        cm.ExecuteNonQuery();
                    }
                    if (!String.IsNullOrEmpty(unit1Code.Text) && !String.IsNullOrEmpty(unit1New.Text))
                    {
                        cm = new SqlCommand("Update ProductAltUnit set [price/unit] = @price where distinctiveCode = @distinctiveCode and branchID = @branchID", cn);
                        cm.Parameters.AddWithValue("@distinctiveCode", unit1Code.Text);
                        cm.Parameters.AddWithValue("@price", unit1New.Text);
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Transaction = transaction;
                        cm.ExecuteNonQuery();
                    }
                    if (!String.IsNullOrEmpty(unit2Code.Text) && !String.IsNullOrEmpty(unit2New.Text))
                    {
                        cm = new SqlCommand("Update ProductAltUnit set [price/unit] = @price where distinctiveCode = @distinctiveCode and branchID = @branchID", cn);
                        cm.Parameters.AddWithValue("@distinctiveCode", unit2Code.Text);
                        cm.Parameters.AddWithValue("@price", unit2New.Text);
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Transaction = transaction;
                        cm.ExecuteNonQuery();
                    }
                    if (!String.IsNullOrEmpty(unit3Code.Text) && !String.IsNullOrEmpty(unit3New.Text))
                    {
                        cm = new SqlCommand("Update ProductAltUnit set [price/unit] = @price where distinctiveCode = @distinctiveCode and branchID = @branchID", cn);
                        cm.Parameters.AddWithValue("@distinctiveCode", unit3Code.Text);
                        cm.Parameters.AddWithValue("@price", unit3New.Text);
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Transaction = transaction;
                        cm.ExecuteNonQuery();
                    }
                    if (!String.IsNullOrEmpty(unit4Code.Text) && !String.IsNullOrEmpty(unit4New.Text))
                    {
                        cm = new SqlCommand("Update ProductAltUnit set [price/unit] = @price where distinctiveCode = @distinctiveCode and branchID = @branchID", cn);
                        cm.Parameters.AddWithValue("@distinctiveCode", unit4Code.Text);
                        cm.Parameters.AddWithValue("@price", unit4New.Text);
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Transaction = transaction;
                        cm.ExecuteNonQuery();
                    }
                    if (!String.IsNullOrEmpty(unit5Code.Text) && !String.IsNullOrEmpty(unit5New.Text))
                    {
                        cm = new SqlCommand("Update ProductAltUnit set [price/unit] = @price where distinctiveCode = @distinctiveCode and branchID = @branchID", cn);
                        cm.Parameters.AddWithValue("@distinctiveCode", unit5Code.Text);
                        cm.Parameters.AddWithValue("@price", unit5New.Text);
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Transaction = transaction;
                        cm.ExecuteNonQuery();
                    }
                    transaction.Commit();
                    cn.Close();
                }));
                return 1;
            }
            catch (Exception ex)
            {
                transaction.Rollback();
                cn.Close();
                ErrorLogging.WriteToFile(ex.ToString());
                return 0;
            }
        }

        private void baseNew_KeyPress(object sender, KeyPressEventArgs e)
        {
            if (e.KeyChar == 46)
            {
                // accepts . character
            }
            else if (e.KeyChar == 8)
            {
                //accepts backspace
            }
            else if ((e.KeyChar < 48) || (e.KeyChar > 57)) //ascii code 48-57 between 0-9
            {
                e.Handled = true;
            }
        }
    }
}