using System;
using System.Collections.Generic;
using System.Linq;
using Tanshu.Accounts.Contracts;
using Tanshu.Accounts.BI;
using System.Windows.Forms;

namespace Tanshu.Accounts.Print
{
    enum Align
    {
        None = 0,
        Left = 1,
        Centre = 2,
        Right = 4
    }

    public static class Thermal
    {
        private static readonly string CutPrinter = System.Configuration.ConfigurationManager.AppSettings["Printer"].Trim().EndsWith("Epson") ? "\n\r\n\r\n\r\n\r\n\r\n\r" + (char)29 + (char)86 + (char)49 : "\n\r" + (char)29 + (char)86 + (char)49;
        private static readonly bool IsTwenty = System.Configuration.ConfigurationManager.AppSettings["Twenty"].Trim().ToLowerInvariant() == "true";
        private const string DrawLine = "\n\r------------------------------------------";
        private const string DrawEqual = "\n\r==========================================";
        private static string DesignKot(SaleVoucherBO trans, IEnumerable<SalesBillItemBO> billItems, string title)
        {
            var waiter = new WaiterBI().GetWaiter(trans.WaiterID);
            try
            {
                var billText = title;
                billText += title;
                billText += DrawLine;
                billText += string.Format("\n\rKOT ID : {0,-13} {1:dd-MMM-yyyy HH:mm}", trans.KotID, trans.Date);
                billText += string.Format("\n\rTable No.: {0} / {1}", trans.TableID, waiter.Name);
                billText += DrawLine;
                billText += "\n\r Qty.  x Name                             ";
                billText += DrawLine;
                foreach (var item in billItems)
                {
                    var additional = item.Quantity - item.Printed;
                    if (additional > 0)
                    {
                        billText += string.Format("\n\r{0,6} x {1,-27} @ {2,6}", additional, item.Name, item.Price);
                    }
                }
                billText += DrawLine;
                if (trans.Narration != "")
                {
                    billText += "\n\r" + FormatText(trans.Narration, 42, false, Align.Centre);
                    billText += DrawLine;
                }
                billText += CutPrinter;
                return billText;
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }
        private static string DesignWaiterKot(SaleVoucherBO trans, IEnumerable<SalesBillItemBO> billItems)
        {
            return DesignKot(trans, billItems, string.Format("\n\rWAITER   WAITER   WAITER   WAITER   WAITER\n\rWAITER   WAITER   WAITER   WAITER   WAITER"));
        }
        private static string DesignPickupKot(SaleVoucherBO trans, IEnumerable<SalesBillItemBO> billItems)
        {
            return DesignKot(trans, billItems, string.Format("\n\rPICK-UP  PICK-UP PICK-UP  PICK-UP  PICK-UP\n\rPICK-UP  PICK-UP PICK-UP  PICK-UP  PICK-UP"));
        }
        private static string DesignCustomerKot(SaleVoucherBO trans, IEnumerable<SalesBillItemBO> billItems)
        {
            return DesignKot(trans, billItems, string.Format("\n\r           Counter / Order Slip           "));
        }

        private static string DesignBill(SaleVoucherBO trans, IEnumerable<InventoryDisplayBO> billItems)
        {
            var cashier = new UserBI().GetUser(trans.UserID);
            var waiter = new WaiterBI().GetWaiter(trans.WaiterID);
            var customer = new CustomerBI().GetCustomer(trans.CustomerID);
            var billNo = trans.BillID.Substring(trans.BillID.IndexOf("-") + 1);

            var billText = "\n\r" + FormatText("Bengali Sweet House", 42, false, Align.Centre);
            billText += "\n\r" + FormatText("+ V2C Multi Cuisine", 42, false, Align.Centre);
            if (!IsTwenty)
                billText += "\n\r" + FormatText("SCO 1, Pocket 1, Manimajra, Chandigarh", 42, false, Align.Centre);
            else
                billText += "\n\r" + FormatText("SCO 399, Sector 20, Panchkula", 42, false, Align.Centre);

            billText += "\n\r" + FormatText("A Unit of AA Herbal Biotech Pvt. Ltd.", 42, false, Align.Centre);
            if (!IsTwenty)
                billText += "\n\r" + FormatText("TIN: 04400023630", 42, false, Align.Centre);
            else
                billText += "\n\r" + FormatText("TIN: 06892504733", 42, false, Align.Centre);
            billText += "\n\r" + FormatText("Retail Invoice", 42, false, Align.Centre);
            billText += "\n\r";
            billText += "\n\r" + "Bill No: " + FormatText(billNo, 13, false, Align.Centre) + string.Format("{0:dd-MMM-yyyy HH:mm:ss}", trans.Date);
            billText += "\n\r" + "Table No.: " + trans.TableID;
            billText += "\n\r" + "------------------------------------------";
            billText += "\n\r" + "Qty.  Particulars            Price  Amount";
            billText += "\n\r" + "------------------------------------------";
            foreach (var item in billItems)
            {
                if (Math.Round((item.Rate * (1 + item.Vat + item.ServiceTax)), 0) == 1)
                {
                    billText += "\n\r" + "      ";
                    billText += FormatText(item.ProductName, 22, false, Align.Left) + " ";
                    billText += "       ";
                    billText += FormatBillNum(item.Rate * item.Quantity, 6);
                }
                else
                {
                    billText += "\n\r" + FormatBillNum(item.Quantity, 5) + " ";
                    billText += FormatText(item.ProductName, 22, false, Align.Left) + " ";
                    billText += FormatBillNum(item.Rate, 6) + " ";
                    billText += FormatBillNum(item.Rate * item.Quantity, 6);
                }
            }
            billText += "\n\r" + "------------------------------------------";

            decimal amount = billItems.Sum(b => b.Vat * b.Quantity * b.Rate * (1 - b.Discount));
            if (amount != 0)
                billText += "\n\r" + FormatText("VAT : ", 33, false, Align.Right) + FormatBillNum(amount, 9);

            amount = billItems.Sum(b => b.ServiceTax * b.Quantity * b.Rate * (1 - b.Discount));
            if (amount != 0)
                billText += "\n\r" + FormatText("Service Tax : ", 33, false, Align.Right) + FormatBillNum(amount, 9);

            amount = billItems.Sum(b => b.Quantity * b.Rate * b.Discount);
            if (amount != 0)
                billText += "\n\r" + FormatText("Discount : ", 33, false, Align.Right) + FormatBillNum(amount, 9);

            decimal advance = 0;
            if (trans.AdvanceID.HasValue)
            {
                advance = new AdvanceBI().Get(trans.AdvanceID.Value).Amount;
                billText += "\n\r" + FormatText("Less Advance : ", 33, false, Align.Right) + FormatBillNum(advance, 9);
            }

            amount = billItems.Sum(b => b.Amount) - advance;

            billText += string.Format("\n\r                  Final Amount : {0,9:#,##0.00;(#,##0.00);0}", Math.Round(amount, 0));
            billText += DrawLine;
            if (trans.Narration != "")
            {
                billText += "\n\r" + FormatText(trans.Narration, 42, false, Align.Centre);
                billText += DrawLine;
            }
            if (customer.Name != "Cash")
            {
                billText += "\n\r" + customer.Name;
                billText += string.Format("\n\r{0}\n\r{1}", customer.Phone, customer.Address);
                billText += DrawLine;
            }
            billText += "\n\r" + "Cashier : " + cashier.Name + " / " + waiter.Name;
            if (!IsTwenty)
                billText += "\n\r" + " For Home Delivery: 0172-3242030, 3243040 ";
            else
                billText += "\n\r" + " For Home Delivery: 0172-3535000, 3536000 ";
            billText += CutPrinter;
            return billText;
        }

        private static string FormatText(string inputString, int width, Boolean multiline, Align alignment)
        {
            if ((multiline) && (inputString.Length > width))
            {
                var newString = "";
                var lines = Convert.ToInt32(Math.Floor(Convert.ToDecimal(inputString.Length / width)));
                for (var i = 0; i < lines; i++)
                    newString += inputString.Substring(i * width, width) + "\n\r";
                newString += FormatText(inputString.Substring(lines * width), width, true, alignment);
                return newString;
            }
            if (inputString.Length > width)
                return inputString.Substring(0, width);
            if (alignment == Align.None)
                return inputString;
            if (alignment == Align.Left)
                return string.Format("{0,-" + width.ToString() + "}", inputString);
            if (alignment == Align.Centre)
            {
                int left = Convert.ToInt32(Math.Ceiling(Convert.ToDouble((width - inputString.Length) / 2))) + inputString.Length;
                inputString = string.Format("{0,-" + left.ToString() + "}", inputString);
                return string.Format("{0," + width.ToString() + "}", inputString);
            }
            if (alignment == Align.Right)
                return string.Format("{0," + width.ToString() + "}", inputString);
            return inputString;
        }

        private static string FormatBillNum(decimal amount, int length)
        {
            var temp = String.Format("{0:#,##0.00;(#,##0.00);0}", amount);
            return string.Format("{0," + length.ToString() + "}", temp);
        }

        private static bool PrintRaw(string text, string documentName)
        {
#if (DEBUG)
            MessageBox.Show(text,documentName);
            return true;
#else
            var printerName = System.Configuration.ConfigurationManager.AppSettings["Printer"].Trim();
            if (!RawPrinterHelper.PrintString(printerName, documentName, text, new char[] { ';' }))
            {
                System.Windows.Forms.MessageBox.Show("Error in PrintRAW Function. Please Report immediately");
            }
            return true;
#endif
        }

        #region Print Cash Total
        public static Boolean PrintCash(Dictionary<int, int> amount)
        {
            string printText;
            int total = 0;
            try
            {
                printText = FormatText(CurrentUser.user.Name, 42, false, Align.Centre);
                printText += DrawLine;
                printText += "\n\r" + FormatText(string.Format("{0:dd-MMM-yyyy HH:mm:ss}", DateTime.Now), 42, false, Align.Centre);
                foreach (int key in amount.Keys.OrderByDescending(k => k))
                {
                    printText += CashLine(amount, key);
                    total += amount[key] * key;
                }
                printText += "\n\r" + DrawEqual;
                printText += string.Format("\n\r             Total = {0,10:#,##0}", total);
                printText += DrawLine;
                printText += CutPrinter;
                return PrintRaw(printText, "Closing/Opening for " + CurrentUser.user.Name);
            }
            catch (Exception ex)
            {
                throw;
            }

        }
        public static Boolean PrintSale(List<SalesAnalysisBO> det, DateTime startDate, DateTime endDate)
        {
            var printText = FormatText(CurrentUser.user.Name, 42, false, Align.Centre);
            printText += DrawLine;
            printText += "\n\r" + FormatText(string.Format("{0:dd-MMM-yyyy HH:mm:ss}", DateTime.Now), 42, false, Align.Centre);
            printText += "\n\r" + FormatText(string.Format("{0:dd-MMM-yyyy} to {1:dd-MMM-yyyy}", startDate, endDate), 42, false, Align.Centre);
            printText += DrawLine;
            foreach (var d in det)
            {
                if (d.Name.Length > 30)
                    d.Name = d.Name.Substring(0, 30);
                if (d.Vat != 0 || d.ServiceTax != 0)
                {
                    printText += string.Format("\n\r{0,-17} {1,8:#,##0} {2,7:#,##0} {3,7:#,##0}", d.Name, d.Net, d.Vat, d.ServiceTax);
                }
                else
                {
                    printText += string.Format("\n\r{0,-32} {1,9:#,##0}", d.Name, d.Net);
                }
            }
            printText += DrawEqual;
            printText += CutPrinter;
            return PrintRaw(printText, "Sale Detail " + CurrentUser.user.Name);
        }

        public static Boolean PrintSale(List<SalesAnalysisDetailBO> det, DateTime startDate, DateTime endDate)
        {
            var printText = FormatText(CurrentUser.user.Name, 42, false, Align.Centre);
            printText += DrawLine;
            printText += "\n\r" + FormatText(string.Format("{0:dd-MMM-yyyy HH:mm:ss}", DateTime.Now), 42, false, Align.Centre);
            printText += "\n\r" + FormatText(string.Format("{0:dd-MMM-yyyy} to {1:dd-MMM-yyyy}", startDate, endDate), 42, false, Align.Centre);
            printText += DrawLine;
            foreach (var d in det)
            {
                printText += string.Format("\n\r{0,-23} {1,9:#,##0.00} {2,8:#,##0}", d.Product, d.Quantity, d.Amount);
            }
            printText += DrawEqual;
            printText += CutPrinter;
            return PrintRaw(printText, "Sale Detail " + CurrentUser.user.Name);
        }

        private static string CashLine(IDictionary<int, int> amount, int key)
        {
            if (amount.ContainsKey(key))
                return string.Format("\n\r{0,5:#,##0} x {1,10:#,##0} = {2,10:#,##0}", key, amount[key], key * amount[key]);
            else
                return string.Empty;
        }
        #endregion

        public static Boolean PrintAdvance(string advance, string narration)
        {
            try
            {
                var billText = "\n\r" + FormatText("Bengali Sweet House", 42, false, Align.Centre);
                billText += "\n\r" + FormatText("+ V2C Multi Cuisine", 42, false, Align.Centre);
                if (!IsTwenty)
                    billText += "\n\r" + FormatText("SCO 1, Pocket 1, Manimajra, Chandigarh", 42, false, Align.Centre);
                else
                    billText += "\n\r" + FormatText("SCO 399, Sector 20, Panchkula", 42, false, Align.Centre);
                billText += "\n\r" + FormatText("A Unit of AA Herbal Biotech Pvt. Ltd.", 42, false, Align.Centre);
                billText += DrawLine;
                billText += "\n\r" + FormatText(string.Format("{0:dd-MMM-yyyy HH:mm:ss}", DateTime.Now), 42, false, Align.Centre);
                billText += "\n\r" + FormatText("Received Rs. " + advance + " as advance.", 42, false, Align.Centre);
                billText += DrawLine;
                if (narration != "") billText += "\n\r" + FormatText(narration, 42, false, Align.Centre);
                billText += DrawLine;
                billText += "\n\r" + FormatText("Thanking you " + CurrentUser.user.Name, 42, false, Align.Left);
                billText += "\n\r";
                billText += "\n\r";
                billText += "\n\r";
                billText += "\n\r";
                billText += "\n\r";
                billText += "Signed" + "\n\r";
                billText += "\n\r";
                billText += CutPrinter;
                billText += "\n\r" + billText;
                return PrintRaw(billText, "Closing/Opening for " + CurrentUser.user.Name);
            }
            catch (Exception ex)
            {
                throw ex;
            }

        }

        public static Boolean PrintClosing(CheckoutBI details)
        {
            var billText = FormatText(string.Format("{0} Checkout By {1}", details.Cashier, details.Manager), 42, false, Align.Centre);
            billText += string.Format("{0:dd-MMM-yy} To {1:dd-MMM-yy} @ {2:dd-MMM-yyyy HH:mm}", details.StartDate, details.FinishDate, DateTime.Now);
            billText += DrawLine;
            billText += string.Format("\n\rOpening       : {0,26:#,##0.00}", details.Opening);
            billText += string.Format("\n\rReceipts      : {0,26:#,##0.00}", details.Receipts);
            billText += string.Format("\n\rAdvance Rcv.  : {0,26:#,##0.00}", details.AdvanceReceipts);
            billText += string.Format("\n\rCC Receipts   : {0,26:#,##0.00}", details.CreditCardReceipts);
            billText += string.Format("\n\rCredit Sale   : {0,26:#,##0.00}", details.CreditReceipts);
            billText += string.Format("\n\rStaff Sale    : {0,26:#,##0.00}", details.StaffReceipts);
            billText += string.Format("\n\rAdvance Adj.  : {0,26:#,##0.00}", details.AdvanceAdjusted);
            billText += string.Format("\n\rPayments      : {0,26:#,##0.00}", details.CashPayments);
            billText += string.Format("\n\rAddl. Voids   : {0,26:#,##0.00}", details.AdditionalVoids);
            billText += string.Format("\n\rVoids in Sys. : {0,26:#,##0.00}", details.VoidsInSystem);
            billText += string.Format("\n\rPending Bills : {0,26:#,##0.00}", details.PendingBills);
            billText += string.Format("\n\rNet Sales     : {0,26:#,##0.00}", details.NetSales);
            billText += string.Format("\n\rClosing Bal.  : {0,26:#,##0.00}", details.ClosingBalance);
            billText += string.Format("\n\rCash Dep.     : {0,26:#,##0.00}", details.CashDeposited);
            billText += DrawLine;
            billText += string.Format("\n\rOld Pending   : {0,26:#,##0.00}", details.OldPending);
            billText += string.Format("\n\rOld Receipts  : {0,26:#,##0.00}", details.OldReceipts);
            billText += string.Format("\n\rOld Voided    : {0,26:#,##0.00}", details.OldVoided);
            billText += DrawEqual;
            billText += "\n\r" + FormatText(details.Status, 42, false, Align.Centre);
            billText += DrawEqual;
            billText += string.Format("\n\rActive Cashiers : {0}", details.Cashiers);

            if (details.PendingString.Length > 0)
                billText += details.PendingString;

            if (details.CCString.Length > 0)
                billText += details.CCString;

            if (details.CreditString.Length > 0)
                billText += details.CreditString;

            if (details.StaffString.Length > 0)
                billText += details.StaffString;

            if (details.VoidsString.Length > 0)
                billText += details.VoidsString;

            if (details.PaymentString.Length > 0)
                billText += details.PaymentString;

            if (details.DiscountString.Length > 0)
                billText += details.DiscountString;
            billText += CutPrinter;
            return PrintRaw(billText, "Closing");
        }

        public static string FormatPrintNum(string InputString)
        {
            if (InputString == "") return "0.00";
            //return FormatText(FormatNumber(InputString.Trim, 2, TriState.UseDefault, TriState.True, TriState.True), 24, False, Align.Right);
            return FormatText(InputString, 24, false, Align.Right);
        }

        public static void PrintBill(Guid voucherID)
        {
            SaleVoucherBO trans = new SaleVoucherBO();
            List<InventoryDisplayBO> iList = new List<InventoryDisplayBO>();
            new SaleVoucherBI().GetSaleVoucher(voucherID, ref trans, ref iList);
            PrintRaw(DesignBill(trans, iList), "Bill");
        }

        public static void PrintWaiterKot(string p, Guid voucherID, List<SalesBillItemBO> list)
        {
            SaleVoucherBO trans = new SaleVoucherBO();
            List<InventoryDisplayBO> iList = new List<InventoryDisplayBO>();
            new SaleVoucherBI().GetSaleVoucher(voucherID, ref trans, ref iList);
            if (list.Count(i => (i.Quantity - i.Printed) > 0) > 0)
            {
                PrintRaw(DesignWaiterKot(trans, list), "KOT");
                PrintRaw(DesignPickupKot(trans, list), "KOT");
            }
        }
        public static void PrintCustomerKot(string p, Guid voucherID, List<SalesBillItemBO> list)
        {
            SaleVoucherBO trans = new SaleVoucherBO();
            List<InventoryDisplayBO> iList = new List<InventoryDisplayBO>();
            new SaleVoucherBI().GetSaleVoucher(voucherID, ref trans, ref iList);
            if (list.Count(i => (i.Quantity - i.Printed) > 0) > 0)
            {
                PrintRaw(DesignCustomerKot(trans, list), "KOT");
            }
        }


    }
}