using BiskLog_Point_Of_Sale.Classes;
using BiskLog_Point_Of_Sale.Multiple_Login;
using BiskLog_Point_Of_Sale.Properties;
using Microsoft.Reporting.WinForms;
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.IO;
using System.Linq;
using System.Net.Mail;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace BiskLog_Point_Of_Sale.Delivery
{
    public partial class DeliveryDetails : Form
    {
        SqlConnection cn;
        SqlCommand cm;
        SqlDataReader dr;
        DatabaseConn conn = new DatabaseConn();
        public static List<OrderInvoice> deliveryInvoice = new List<OrderInvoice>();
        public static List<products> productsList = new List<products>();
        string deliveryID;
        public bool delivered = false, cancelled = false;
        public DeliveryDetails(string orderID = null, string status = null)
        {
            InitializeComponent();
            cn = new SqlConnection(conn.MyConnection());
            deliveryID = orderID;
            if (status == "DELIVERED")
            {
                panel3.Visible = false;
                lblStatus.Text = status;
                lblStatus.ForeColor = Color.FromName("DarkGreen");
                button2.Visible = false;
                button3.Visible = false;
            }
            else if (status == "CANCELLED")
            {
                panel3.Visible = false;
                lblStatus.Text = status;
                lblStatus.ForeColor = Color.FromName("Crimson");
                button2.Visible = false;
                button3.Visible = false;
            }
            else if (status == "ASSIGNED TO TRUCK")
            {
                lblStatus.Text = status;
                lblStatus.ForeColor = Color.FromName("RoyalBlue");
                button2.Visible = true;
                button3.Visible = true;
            }
            else
            {
                lblStatus.Text = status;
                lblStatus.ForeColor = Color.FromName("RoyalBlue");
                button2.Visible = false;
                button3.Visible = true;
            }
        }

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

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

        private void Exit_MouseLeave(object sender, EventArgs e)
        {
            exit.BackColor = Color.FromArgb(20, 158, 137);
        }

        private async void NewDelivery_Load(object sender, EventArgs e)
        {
            Task<int> task = new Task<int>(loadDetails);
            holding.Visible = true;
            task.Start();
            int result = await task;
            if (result != 1)
            {
                string title = "AN ERROR OCCURRED";
                string message = "An error occurred while loading order details, please try again later";
                NoAction noAction = new NoAction(title, message);
                noAction.BringToFront();
                noAction.ShowDialog();
            }
            holding.Visible = false;
        }

        bool IsValidEmail(string email)
        {
            try
            {
                var addr = new MailAddress(email);
                return addr.Address == email;
            }
            catch
            {
                return false;
            }
        }
        private async void Button1_Click(object sender, EventArgs e)
        {
            if (!String.IsNullOrEmpty(lblEmail.Text))
            {
                if (IsValidEmail(lblEmail.Text))
                {
                    holding.Visible = true;
                    Task<int> taskO = new Task<int>(updateEmail);
                    taskO.Start();
                    int youin = await taskO;
                    if (youin == 1)
                    {
                        string titled = "Update Successfully";
                        string messaged = "Recipient's details updated successfully";
                        NoAction noActiond = new NoAction(titled, messaged);
                        noActiond.BringToFront();
                        noActiond.ShowDialog();
                    }
                    else
                    {
                        string titles = "Update failed";
                        string messages = "An error occurred while trying to update customer's details";
                        NoAction noActions = new NoAction(titles, messages);
                        noActions.BringToFront();
                        noActions.ShowDialog();
                    }
                    holding.Visible = false;
                }
            }
        }
        public int loadDetails()
        {
            try
            {
                int i = 1;
                cn.Open();
                invoiceDetails.Invoke(new Action(() =>
                {
                    invoiceDetails.Rows.Clear();
                    cm = new SqlCommand("Declare @totalProduct decimal(19,2) = (Select Sum(cost) from tblDeliveryDetails where deliveryID = @deliveryID) " +
                        "Declare @Addition decimal(19, 2) = case when(Select totalCost from tblDeliveryHead where deliveryID = @deliveryID) - @totalProduct <= 0 then 0 " +
                        "else (Select totalCost from tblDeliveryHead where deliveryID = @deliveryID) - @totalProduct end " +
                        "Select DR.fullname,DR.address,DR.telephone,DR.email,DR.fromDate,DR.toDate,DH.totalCost,DP.product_name,DD.quantity,DD.cost,@totalProduct,@Addition,DD.pcode,u.unitname,DD.unit from " +
                        "tblDeliveryDetails DD Inner Join tblDeliveryRecipients DR on DR.deliveryID = DD.deliveryID Inner Join tblDeliveryHead DH On DH.deliveryID = DD.deliveryID Inner Join " +
                        "tblProduct DP On DP.pcode = DD.pcode Inner Join UnitOfMeasure u On u.unitCode = DD.unit where DD.deliveryID = @deliveryID and DH.branchID = @branchID", cn);
                    cm.Parameters.AddWithValue("@deliveryID", deliveryID);
                    cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                    cm.ExecuteNonQuery();
                    dr = cm.ExecuteReader();
                    while (dr.Read())
                    {
                        lblFullname.Text = dr[0].ToString().ToUpper();
                        lblAddress.Text = dr[1].ToString().ToUpper();
                        lblTelephone.Text = dr[2].ToString();
                        lblEmail.Text = dr[3].ToString();
                        string beginDate = dr[4].ToString();
                        string endDate = dr[5].ToString();
                        lblCharges.Text = Settings.Default.currrencyCode + " " + dr[11].ToString();
                        lblItemT.Text = Settings.Default.currrencyCode + " " + dr[10].ToString();
                        lblFrom.Value = Convert.ToDateTime(beginDate);
                        lblTo.Value = Convert.ToDateTime(endDate);
                        lblTotal.Text = Settings.Default.currrencyCode + " " + dr[6].ToString();
                        invoiceDetails.Rows.Add(i, dr[7].ToString().ToUpper(), dr[8].ToString(), dr[13].ToString(), Settings.Default.currrencyCode + " " + dr[9].ToString(), 
                            dr[12].ToString(),dr[14].ToString());
                        i++;
                    }
                    dr.Close();
                }));
                cn.Close();
                return 1;
            }
            catch (Exception ex)
            {
                cn.Close();
                ErrorLogging.WriteToFile(ex.ToString());
                return 0;
            }
        }
        public int updateEmail()
        {
            try
            {
                cn.Open();
                cm = new SqlCommand("Update tblDeliveryRecipients set email = @email where deliveryID = @deliveryID", cn);
                cm.Parameters.AddWithValue("@email", lblEmail.Text);
                cm.Parameters.AddWithValue("@deliveryID", deliveryID);
                cm.ExecuteNonQuery();
                cn.Close();
                return 1;
            }
            catch
            {
                cn.Close();
                return 0;
            }
        }
        public int cancelOrder()
        {
            try
            {
                cn.Open();
                cm = new SqlCommand("Update tblDeliveryHead set status = @status where deliveryID = @deliveryID", cn);
                cm.Parameters.AddWithValue("@status", "CANCELLED");
                cm.Parameters.AddWithValue("@deliveryID", deliveryID);
                cm.ExecuteNonQuery();
                cn.Close();
                return 1;
            }
            catch
            {
                cn.Close();
                return 0;
            }
        }
        public int confirmOrder()
        {
            cn.Open();
            SqlTransaction tn = cn.BeginTransaction();
            try
            {
                foreach (DataGridViewRow row in invoiceDetails.Rows)
                {
                    cm = new SqlCommand($"EXEC [dbo].[usp_confirm_delivery] @orderID = @order,@quantity = @newquantity,@pcode = @productID,@unit = @measure", cn, tn);
                    cm.Parameters.AddWithValue("@productID", row.Cells[4].Value.ToString());
                    cm.Parameters.AddWithValue("@newquantity", int.Parse(row.Cells[2].Value.ToString()));
                    cm.Parameters.AddWithValue("@measure", row.Cells[6].Value.ToString());
                    cm.Parameters.AddWithValue("@order", deliveryID);
                    cm.Parameters.AddWithValue("@status", "ASSIGNED TO TRUCK");
                    cm.ExecuteNonQuery();
                }
                cm = new SqlCommand("Update tblDeliveryHead set status = @status,dateCompleted = @date where deliveryID = @deliveryID", cn, tn);
                cm.Parameters.AddWithValue("@status", "DELIVERED");
                cm.Parameters.AddWithValue("@deliveryID", deliveryID);
                cm.Parameters.AddWithValue("@date", DateTime.Now);
                cm.ExecuteNonQuery();
                tn.Commit();
                cn.Close();
                return 1;
            }
            catch (Exception ex)
            {
                ErrorLogging.WriteToFile(ex.ToString());
                tn.Rollback();
                cn.Close();
                return 0;
            }
        }
        private async void Button3_Click(object sender, EventArgs e)
        {
            holding.Visible = true;
            Task<int> taskO = new Task<int>(cancelOrder);
            string message = "Are you sure you would like to cancel this order ?";
            string title = "Confirm action";
            Confirmation yes_OR = new Confirmation(title, message);
            yes_OR.BringToFront();
            yes_OR.ShowDialog();
            if (yes_OR.DialogResult == DialogResult.Yes)
            {
                taskO.Start();
                int youin = await taskO;
                if (youin == 1)
                {
                    string titled = "Cancellation Successful";
                    string messaged = "Delivery order cancelled successfully";
                    NoAction noActiond = new NoAction(titled, messaged);
                    noActiond.BringToFront();
                    noActiond.ShowDialog();
                    lblStatus.Text = "CANCELLED";
                    lblStatus.ForeColor = Color.FromName("Crimson");
                    button2.Visible = false;
                    button3.Visible = false;
                    cancelled = true;
                }
                else
                {
                    string titles = "Cancellation Failed";
                    string messages = "An error occurred while trying to cancel order";
                    NoAction noActions = new NoAction(titles, messages);
                    noActions.BringToFront();
                    noActions.ShowDialog();
                }
            }
            holding.Visible = false;
        }
        private async void Button2_Click(object sender, EventArgs e)
        {
            holding.Visible = true;
            string message = "Are you sure you would like to mark this order as delivered ?";
            string title = "Confirm action";
            Confirmation Confirmation = new Confirmation(title, message);
            Confirmation.BringToFront();
            Confirmation.ShowDialog();
            if (Confirmation.DialogResult == DialogResult.Yes)
            {
                Task<int> task = new Task<int>(confirmOrder);
                task.Start();
                int result = await task;
                if (result == 1)
                {
                    string titled = "Confirmation Successful";
                    string messaged = "Order completed successfully";
                    NoAction noActiond = new NoAction(titled, messaged);
                    noActiond.BringToFront();
                    noActiond.ShowDialog();
                    button2.Visible = false;
                    button3.Visible = false;
                    lblStatus.Text = "DELIVERED";
                    lblStatus.ForeColor = Color.FromName("DarkGreen");
                    delivered = true;
                }
                else
                {
                    string titled = "Confirmation failed";
                    string messaged = "Order confirmation failed due to an unexpected error!!!";
                    NoAction noActiond = new NoAction(titled, messaged);
                    noActiond.BringToFront();
                    noActiond.ShowDialog();
                }
            }
            holding.Visible = false;
        }
    }
}