using BarcodeLib;
using BiskLog_Point_Of_Sale.Classes;
using BiskLog_Point_Of_Sale.Company_Setup;
using BiskLog_Point_Of_Sale.POSDialogs;
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.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace BiskLog_Point_Of_Sale.Invoice
{
    public partial class AddInvoice : Form
    {
        SqlConnection cn;
        DatabaseConn conn = new DatabaseConn();
        SqlCommand cm;
        SqlDataReader dr;
        SqlTransaction transaction;
        InvoiceMain invoiceMain;
        List<InvoiceObj> ProductNCode = new List<InvoiceObj>();
        List<InvoiceObj> Selected = new List<InvoiceObj>();
        List<string> invoiced = new List<string>();
        public static List<ReceiptObject> receiptClasses = new List<ReceiptObject>();
        public static List<bottom> receiptClasses2 = new List<bottom>();
        string printLocation = "";
        string printerReceiptDefault = Settings.Default.ReportPrinter;
        int i = 1;
        string invoiceIDGenerated;
        string name, address;
        public AddInvoice(InvoiceMain main)
        {
            InitializeComponent();
            invoiceMain = main;
            cn = new SqlConnection(conn.MyConnection());
        }

        private void CloseBTN_Click(object sender, EventArgs e)
        {
            this.Close();
        }
        public int LoadProducts()
        {
            ProductNCode.Clear();
            try
            {
                cn.Open();
                cm = new SqlCommand("Select pcode, product_name,baseUnit,uni.unitName,pdesc from tblProduct Inner Join UnitOfMeasure uni On uni.unitCode = tblProduct.baseUnit " +
                    "where tblProduct.branchID = @branchID " +
                    "Select tblProduct.pcode, product_name,uni.unitName,PAU.unitCode,tblProduct.pdesc,PAU.distinctiveCode from tblProduct Inner Join ProductAltUnit PAU On PAU.pcode = tblProduct.pcode Inner " +
                    "Join UnitOfMeasure uni On uni.unitCode = PAU.unitCode where tblProduct.branchID = @branchID", cn);
                cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                cm.ExecuteNonQuery();
                dr = cm.ExecuteReader();
                while (dr.Read())
                {
                    InvoiceObj invoice = new InvoiceObj();
                    invoice.pcode = dr[0].ToString();
                    invoice.productName = dr[1].ToString();
                    invoice.unitCode = dr[2].ToString();
                    invoice.unitName = dr[3].ToString();
                    invoice.description = dr[4].ToString();
                    invoice.distinctive = dr[0].ToString();
                    ProductNCode.Add(invoice);
                }
                dr.NextResult();
                while (dr.Read())
                {
                    InvoiceObj invoice = new InvoiceObj();
                    invoice.pcode = dr[0].ToString();
                    invoice.productName = dr[1].ToString();
                    invoice.unitCode = dr[3].ToString();
                    invoice.unitName = dr[2].ToString();
                    invoice.description = dr[4].ToString();
                    invoice.distinctive = dr[5].ToString();
                    ProductNCode.Add(invoice);
                }
                dr.Close();
                cn.Close();
                return 1;
            }
            catch
            {
                cn.Close();
                return 0;
            }
        }
        private void CloseBTN_MouseEnter(object sender, EventArgs e)
        {
            closeBTN.BackColor = Color.Crimson;
        }

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

        private async void AddInvoice_Load(object sender, EventArgs e)
        {
            Task<int> task = new Task<int>(LoadProducts);
            task.Start();
            await task;
            comboBox2.DataSource = ProductNCode;
            comboBox2.DisplayMember = "productName";
            comboBox2.ValueMember = "pcode";
            comboBox2.SelectedIndex = -1;


        }

        public int AddToList(int quantity, string productCode)
        {
            try
            {
                string kel = "";
                invoiceDetails.Invoke(new Action(() =>
                {
                    kel = (comboBox3.SelectedItem as InvoiceObj).unitCode;
                }));
                cn.Open();
                cm = new SqlCommand("Declare @baseunit varchar(150) = (Select baseUnit from tblProduct where pcode = @pcode) " +
                    "Declare @dquantity int = Case when @baseUnit = @unit then 1 else " +
                    "(Select [quantity/unit] as quantity from ProductAltUnit where pcode = @pcode and unitCode = @unit and branchID = @branchID) " +
                    "end " +
                    "Declare @costprice decimal(19, 2) = Case when @baseUnit = @unit then (Select price from tblProduct where tblProduct.pcode = @pcode " +
                    "and tblProduct.branchID = @branchID) else " +
                    "(Select [price/unit] from ProductAltUnit where pcode = @pcode and unitCode = @unit and branchID = @branchID) " +
                    "end " +
                    "Select @costprice,I.quantity / @dquantity as quantity from tblProduct Inner Join tblInventory I On tblProduct.pcode = I.pcode " +
                    "where tblProduct.pcode = @pcode and tblProduct.branchID = @branchID", cn);
                cm.Parameters.AddWithValue("@pcode", productCode);
                cm.Parameters.AddWithValue("@unit", kel);
                cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                cm.ExecuteNonQuery();
                dr = cm.ExecuteReader();
                dr.Read();
                if (dr.HasRows)
                {
                    if (quantity <= int.Parse(dr[1].ToString()))
                    {
                        decimal price = decimal.Parse(dr[0].ToString());

                        invoiceDetails.Invoke(new Action(() =>
                        {

                            string distinctive = (comboBox3.SelectedItem as InvoiceObj).distinctive.ToString();
                            if (!invoiced.Contains(distinctive))
                            {
                                decimal totalPrice = quantity * price;
                                invoiceDetails.Rows.Add(i, productCode, comboBox2.Text, quantity.ToString(), comboBox3.Text, Settings.Default.currrencyCode + " " +
                                totalPrice.ToString(), kel, distinctive);
                                invoiced.Add(distinctive);
                            }
                            else
                            {
                                foreach (DataGridViewRow row in invoiceDetails.Rows)
                                {
                                    if (row.Cells[7].Value.ToString().Equals(distinctive))
                                    {
                                        int total_quantity = int.Parse(row.Cells[3].Value.ToString());
                                        total_quantity += quantity;
                                        decimal totalPrice = total_quantity * price;
                                        row.Cells[3].Value = total_quantity;
                                        row.Cells[5].Value = Settings.Default.currrencyCode + " " + totalPrice;
                                    }
                                }
                            }
                        }));
                        i++;
                        dr.Close();
                        cn.Close();
                        return 1;
                    }
                    else
                    {
                        invoiceDetails.Invoke(new Action(() =>
                        {
                            DESC.Text = DESC.Text + " \n only " + dr[1].ToString() + " " + comboBox3.Text + " of " + comboBox2.Text + " available !!!";
                        }));
                        dr.Close();
                        cn.Close();
                        return 2;
                    }
                }
                else
                {
                    dr.Close();
                    cn.Close();
                    return 0;
                }
            }
            catch
            {
                cn.Close();
                return 0;
            }
        }
        private void Button1_Click(object sender, EventArgs e)
        {
            string code = (comboBox2.SelectedItem as InvoiceObj).pcode.ToString();
            quantityInvoice quantity = new quantityInvoice(this, code);
            quantity.BringToFront();
            quantity.ShowDialog();
        }
        private void InvoiceDetails_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {

        }
        public Image getBarcodeImage(string Bcode)
        {
            Barcode barcodeAPI = new Barcode();
            Color foreColor = Color.Black;
            Color backColor = Color.Transparent;
            return barcodeAPI.Encode(TYPE.UPCA, Bcode, foreColor, backColor, 290, 120);
        }
        public int GenerateInvoice()
        {
            try
            {
                receiptClasses.Clear();
                receiptClasses2.Clear();
                cn.Open();
                transaction = cn.BeginTransaction();
                invoiceIDGenerated = String.Format("{0:d12}", (DateTime.Now.Ticks / 10) % 1000000000);
                invoiceDetails.Invoke(new Action(() =>
                {
                    decimal allTotal = 0;
                    foreach (DataGridViewRow row in invoiceDetails.Rows)
                    {
                        decimal total = decimal.Parse(row.Cells[5].Value.ToString().Substring(Settings.Default.currrencyCode.Length));
                        int qty = int.Parse(row.Cells[3].Value.ToString());
                        cm = new SqlCommand("Insert into tblInvoice (invoiceID,pcode,quantity,totalprice,unitprice,dateGenerated,status,generatedBy,branchID,countID,unit) " +
                            "Values (@invoiceID,@pcode,@quantity,@totalprice,@unitprice,@dateGenerated,@status,@generatedBy,@branchID,@countID,@unit)", cn, transaction);
                        cm.Parameters.AddWithValue("@invoiceID", invoiceIDGenerated);
                        cm.Parameters.AddWithValue("@pcode", row.Cells[1].Value.ToString());
                        cm.Parameters.AddWithValue("@unit", row.Cells[6].Value.ToString());
                        cm.Parameters.AddWithValue("@quantity", qty);
                        cm.Parameters.AddWithValue("@totalprice", total);
                        cm.Parameters.AddWithValue("@unitprice", (total / qty));
                        cm.Parameters.AddWithValue("@dateGenerated", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"));
                        cm.Parameters.AddWithValue("@status", "PENDING PURCHASE");
                        cm.Parameters.AddWithValue("@generatedBy", MainLogin.login_user);
                        cm.Parameters.AddWithValue("@branchID", Settings.Default.BranchID);
                        cm.Parameters.AddWithValue("@countID", row.Cells[1].Value.ToString() + DateTime.Now.ToString("yyyyMMddHHmmssfff"));
                        cm.ExecuteNonQuery();

                        ReceiptObject receipt = new ReceiptObject(row.Cells[2].Value.ToString(), total / qty, qty, total);
                        receiptClasses.Add(receipt);
                        allTotal += total;
                    }
                    transaction.Commit();
                    MemoryStream ms = new MemoryStream();
                    getBarcodeImage(invoiceIDGenerated).Save(ms, ImageFormat.Png);
                    byte[] imageBytes = ms.ToArray();
                    string barcodeStringImage = Convert.ToBase64String(imageBytes);
                    
                    bottom bottomReceipt = new bottom("", invoiceIDGenerated, MainLogin.login_user, allTotal, allTotal, "", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"),
                        "", "", Form1.bCompanyName, Form1.branchName, Form1.branchLocation, Form1.branchTel, Form1.tin, Form1.vatno,
                        barcodeStringImage, name, address);
                    receiptClasses2.Add(bottomReceipt);

                    if (printerReceiptDefault == "Microsoft XPS Document Writer" || printerReceiptDefault == "Microsoft Print to PDF")
                    {
                        FolderBrowserDialog folder = new FolderBrowserDialog();
                        DialogResult result = folder.ShowDialog();
                        if (result == DialogResult.OK && !String.IsNullOrEmpty(folder.SelectedPath))
                        {
                            printLocation = folder.SelectedPath;
                            LocalReport report = new LocalReport();
                            string path = Path.GetDirectoryName(Application.ExecutablePath);
                            string fullpath = Path.GetDirectoryName(Application.ExecutablePath).Remove(path.Length - 10) +
                                @"\ProFormar.rdlc";
                            report.ReportPath = fullpath;
                            report.DataSources.Add(new ReportDataSource("ReceiptReport", receiptClasses));
                            report.DataSources.Add(new ReportDataSource("ReceiptRest", receiptClasses2));
                            ReportConfig.PrintToPrinter(report, printLocation, printerReceiptDefault);
                        }
                    }
                    else
                    {
                        printLocation = "";
                        LocalReport report = new LocalReport();
                        string path = Path.GetDirectoryName(Application.ExecutablePath);
                        string fullpath = Path.GetDirectoryName(Application.ExecutablePath).Remove(path.Length - 10) +
                               @"\ProFormar.rdlc";
                        report.ReportPath = fullpath;
                        report.DataSources.Add(new ReportDataSource("ReceiptReport", receiptClasses));
                        report.DataSources.Add(new ReportDataSource("ReceiptRest", receiptClasses2));
                        ReportConfig.PrintToPrinter(report, printLocation, printerReceiptDefault);
                    }
                }));
                cn.Close();
                return 1;
            }
            catch
            {
                transaction.Rollback();
                cn.Close();
                return 0;
            }
        }
        private async void BtnGenerate_Click(object sender, EventArgs e)
        {
            FillDetails fillDetails = new FillDetails();
            fillDetails.BringToFront();
            fillDetails.ShowDialog();
            if (fillDetails.DialogResult == DialogResult.OK)
            {
                name = fillDetails.customerName;
                address = fillDetails.address;
                Task<int> task = new Task<int>(() =>
                {
                    GenerateInvoice();
                    invoiceMain.LoadInvoice();
                    return 1;
                });
                task.Start();
                await task;
            }
        }
        private void ComboBox2_TextUpdate(object sender, EventArgs e)
        {
            //string filter_param = comboBox2.Text;
            //List<string> filteredItems = ProductNCode.ToList().FindAll(x => x.Contains(filter_param.ToUpper()));
            //comboBox2.DataSource = filteredItems;
            //if (String.IsNullOrWhiteSpace(filter_param))
            //{
            //    comboBox2.DataSource = ProductNCode.Values.ToList();
            //}
            //comboBox2.DroppedDown = true;
            //comboBox2.IntegralHeight = true;
            //comboBox2.SelectedIndex = -1;
            //comboBox2.Text = filter_param;
            //comboBox2.SelectionStart = filter_param.Length;
            //comboBox2.SelectionLength = 0;
            //selectProductCode(comboBox2.Text);
        }
        private void ComboBox2_TextChanged(object sender, EventArgs e)
        {
            Selected.Clear();
            if (!String.IsNullOrEmpty(comboBox2.Text))
            {
                foreach (InvoiceObj invoiceObj in ProductNCode)
                {
                    if (invoiceObj.productName.Equals(comboBox2.Text))
                    {
                        if (!Selected.Contains(invoiceObj))
                            Selected.Add(invoiceObj);
                    }
                }
                comboBox3.DataSource = null;
                comboBox3.DataSource = Selected;
                comboBox3.DisplayMember = "unitName";
                comboBox3.ValueMember = "unitCode";
                comboBox3.SelectedIndex = -1;
                if (comboBox2.SelectedItem != null)
                {
                    comboBox3.Text = (comboBox2.SelectedItem as InvoiceObj).unitName.ToString();
                    DESC.Text = (comboBox2.SelectedItem as InvoiceObj).description.ToString();
                }
            }
            else
            {
                comboBox3.DataSource = null;
                comboBox3.DataSource = Selected;
                DESC.Text = "";
            }
        }
    }
}