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.Customer
{
    public partial class ShopPurchase : Form
    {
        SqlConnection cn;
        SqlDataReader dr;
        SqlCommand cm;
        DatabaseConn conn = new DatabaseConn();
        string customerID,receiptID;
        public ShopPurchase(string customerID)
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
            this.customerID = customerID;
            holding.Left = (ClientSize.Width - holding.Width) / 2;
            holding.Top = (ClientSize.Height - holding.Height) / 2;
        }
        public int loadPurchases()
        {
            try
            {
                dataGridView1.Invoke(new Action(() =>
                {
                    int i = 1;
                    dataGridView1.Rows.Clear();
                    cn.Open();
                    cm = new SqlCommand("Select tc.date,cp.transactionID,SUM(tc.quantity),SUM(tc.total),tc.status from tblCustomerPurchases cp Inner Join " +
                        "tblCart tc on tc.transno = cp.transactionID where cp.customerID = @customerID and tc.status <> 'CANCELLED' and tc.branchID = @branch " +
                        "group by tc.date, cp.transactionID,tc.status", cn);
                    cm.Parameters.AddWithValue("@customerID", this.customerID);
                    cm.Parameters.AddWithValue("@branch", Settings.Default.BranchID);
                    cm.ExecuteNonQuery();
                    dr = cm.ExecuteReader();
                    while (dr.Read())
                    {
                        dataGridView1.Rows.Add(i, Convert.ToDateTime(dr[0].ToString()).ToLongDateString()+ " "+ Convert.ToDateTime(dr[0].ToString()).ToLongTimeString(),
                            dr[1].ToString(), dr[2].ToString(),Settings.Default.currrencyCode +" "+ dr[3].ToString(), dr[4].ToString());
                        i ++;
                    }
                    dr.Close();
                    cn.Close();
                }));
                return 1;
            }catch(Exception ex)
            {
                cn.Close();
                ErrorLogging.WriteToFile(ex.ToString());
                return 0;
            }
        }
        private async void ShopPurchase_Load(object sender, EventArgs e)
        {
            Task<int> task = new Task<int>(loadPurchases);
            holding.Visible = true;
            task.Start();
            int result = await task;
            if (result == 0)
            {
                string title = "Error Occurred";
                string message = "An error occurred while getting customer purchase history, please try again later.";
                NoAction noAction = new NoAction(title,message);
                noAction.BringToFront();
                noAction.ShowDialog();
            }
            holding.Visible = false;
        }

        private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            if(e.RowIndex != -1)
            {
                receiptID = dataGridView1.Rows[e.RowIndex].Cells[2].Value.ToString();
                ViewCustomerSales customerSales = new ViewCustomerSales(receiptID,customerID);
                customerSales.BringToFront();
                customerSales.ShowDialog();
            }
        }
    }
}