using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Web.Script.Serialization;
using System.Windows.Forms;
using Tanshu.Accounts.Repository;
using System.ComponentModel;

namespace Tanshu.Accounts.Management
{
    public partial class ManagementForm : Form
    {
        Stopwatch _stopwatch;
        Stopwatch _totalStopwatch;
        private BackgroundWorker bwGo = new BackgroundWorker();
        private BackgroundWorker bwExcel = new BackgroundWorker();
        public ManagementForm()
        {
            InitializeComponent();

            bwGo.WorkerReportsProgress = true;
            bwGo.WorkerSupportsCancellation = true;
            bwGo.DoWork += new DoWorkEventHandler(DoGo);
            bwGo.ProgressChanged += new ProgressChangedEventHandler(bwGo_ProgressChanged);
            bwGo.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bwGo_RunWorkerCompleted);

            bwExcel.WorkerReportsProgress = true;
            bwExcel.WorkerSupportsCancellation = true;
            bwExcel.DoWork += new DoWorkEventHandler(DoExcel);
            bwExcel.ProgressChanged += new ProgressChangedEventHandler(bwGo_ProgressChanged);
            bwExcel.RunWorkerCompleted += new RunWorkerCompletedEventHandler(bwExcel_RunWorkerCompleted);
        }

        private void Sale_Analysis_Form_Load(object sender, EventArgs e)
        {
            dtpStart.Value = DateTime.Today;
            dtpFinish.Value = DateTime.Today;
        }

        #region Go
        private void btnGo_Click(object sender, EventArgs e)
        {
            if (btnGo.Text == "Go")
            {
                txtStatus.Text = "";
                btnGo.Text = "Cancel";
                _stopwatch = Stopwatch.StartNew();
                _totalStopwatch = Stopwatch.StartNew();
                bwGo.RunWorkerAsync();
            }
            else
                bwGo.CancelAsync();
        }
        private void btnExcel_Click(object sender, EventArgs e)
        {
            if (btnExcel.Text == "Excel")
            {
                txtStatus.Text = "";
                btnExcel.Text = "Cancel";
                _stopwatch = Stopwatch.StartNew();
                _totalStopwatch = Stopwatch.StartNew();
                bwExcel.RunWorkerAsync();
            }
            else
                bwExcel.CancelAsync();
        }

        private void DoGo(object sender, DoWorkEventArgs e)
        {
            var beer = GetBeer();
            var sale = GetSale();
            var credit = GetCredit();

            var info = string.Empty;
            foreach (var item in sale)
            {
                var startDate = item.StartDate;
                var finishDate = item.FinishDate;
                var sDate = startDate.AddHours(7);
                var fDate = finishDate.AddDays(1).AddHours(7);
                int count = 0;
                bwGo.ReportProgress(++count, "Starting on " + startDate.ToShortDateString() + " to " + finishDate.ToShortDateString());
                using (var bi = new ManagementBI())
                {
                    bi.ClearModifiers(sDate, fDate);
                    bwGo.ReportProgress(++count, "Modifiers Cleared");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.DeleteTobacco(sDate, fDate);
                    bwGo.ReportProgress(++count, "Tobacco Deleted");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.DeleteReprints(sDate, fDate);
                    bwGo.ReportProgress(++count, "Reprints Deleted");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.DeleteVoid(sDate, fDate);
                    bwGo.ReportProgress(++count, "Voids Deleted");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.CombineKots(sDate, fDate);
                    bwGo.ReportProgress(++count, "Kots Combined");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.RemoveBlankKots(sDate, fDate);
                    bwGo.ReportProgress(++count, "Blank Kots Removed");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.MoveStaffToNc(sDate, fDate);
                    bwGo.ReportProgress(++count, "Staff Moved");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bwGo.ReportProgress(++count, "Starting beer");
                    foreach (var beerDate in beer)
                    {
                        if (beerDate.Date < startDate || beerDate.Date > finishDate)
                            continue;
                        bi.SetBeer(beerDate.Date.AddHours(7), beerDate.Date.AddDays(1).AddHours(7), beerDate.Quantity);
                        bwGo.ReportProgress(++count, "Beer set for " + beerDate.Date.ToShortDateString());
                        if (bwGo.CancellationPending == true)
                        {
                            e.Cancel = true;
                            return;
                        }
                    }
                    bi.RemoveBlankKots(sDate, fDate);
                    bwGo.ReportProgress(++count, "Blank Kots Removed");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    foreach (var saleItem in item.Sale.Where(x => x.IsLiq))
                    {
                        bi.LiqNcSwap(saleItem.Rate, saleItem.Amount, sDate, fDate);
                        bwGo.ReportProgress(++count, "Liq NC Swap " + saleItem.Rate.ToString());
                        if (bwGo.CancellationPending == true)
                        {
                            e.Cancel = true;
                            return;
                        }
                    }
                    IList<CreditJson> creditJ = credit.Where(x => x.Date >= startDate && x.Date <= finishDate).ToList();
                    bi.SetQuantityAndDiscount(item.Sale, creditJ, startDate, finishDate);
                    bwGo.ReportProgress(++count, "Sale Done");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.RemoveBlankKots(sDate, fDate);
                    bwGo.ReportProgress(++count, "Blank Kots Removed");
                    if (bwGo.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bi.SaveChanges();
                }
                bwGo.ReportProgress(++count, "Cleanup done");
            }
        }
        private void DoExcel(object sender, DoWorkEventArgs e)
        {
            var startDate = dtpStart.Value.Date;
            var finishDate = dtpFinish.Value.Date;
            string sheet;
            int count = 0;
            var info = new List<ExcelInfo>();
            var rates = new List<decimal>();
            using (var bi = new ManagementBI())
            {
                for (var date = startDate; date <= finishDate; date = date.AddDays(1))
                {
                    if (bwExcel.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bwExcel.ReportProgress(++count, "Getting data for " + date.ToShortDateString());
                    var currentStart = date.AddHours(7);
                    var currentFinish = date.AddDays(1).AddHours(7);
                    var bills = bi.GetMinMaxBills(currentStart, currentFinish);
                    if (bills == null)
                        continue;

                    var saleList = bi.GetSaleAndVat(currentStart, currentFinish);
                    var serviceTax = bi.GetServiceTax(currentStart, currentFinish);

                    var ei = new ExcelInfo()
                    {
                        Date = date,
                        StartBill = bi.FullBillID(bills.StartBill, Tanshu.Accounts.Entities.VoucherType.Regular),
                        FinishBill = bi.FullBillID(bills.FinishBill, Tanshu.Accounts.Entities.VoucherType.Regular),
                        SaleAndVat = new Dictionary<decimal, SaleInfo>(),
                        ServiceTax = serviceTax
                    };
                    foreach (var item in saleList)
                    {
                        if (!rates.Contains(item.Rate))
                            rates.Add(item.Rate);
                        ei.SaleAndVat.Add(item.Rate, item);
                    }
                    info.Add(ei);
                }

                rates.Sort();

                sheet = "Date\tBill Start\tBill Final\t";

                foreach (var item in rates)
                {
                    sheet += string.Format("Sale {0:#0.00}%\tVat {0:#0.00}%\t", item * 100);
                }
                sheet += "Service Tax\n";

                foreach (var item in info)
                {
                    if (bwExcel.CancellationPending == true)
                    {
                        e.Cancel = true;
                        return;
                    }
                    bwExcel.ReportProgress(++count, "Compiling data for " + item.Date.ToShortDateString());
                    sheet += string.Format("{0:dd-MMM-yyyy}\t'{1}\t'{2}\t", item.Date, item.StartBill, item.FinishBill);
                    foreach (var rate in rates)
                    {
                        if (item.SaleAndVat.ContainsKey(rate))
                            sheet += string.Format("{0:#0}\t{1:#0}\t", Math.Round(item.SaleAndVat[rate].Net), Math.Round(item.SaleAndVat[rate].Vat));
                        else
                            sheet += "0\t0\t";
                    }
                    sheet += string.Format("{0:#0}\n", Math.Round(item.ServiceTax));

                }
            }
            e.Result = sheet;
        }

        private void bwGo_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
        {
            var time = (_stopwatch.ElapsedMilliseconds / 1000).ToString() + "s / " + (_totalStopwatch.ElapsedMilliseconds / 1000).ToString() + "s";
            _stopwatch.Reset();
            _stopwatch.Start();
            txtStatus.Text = (string)e.UserState + " " + time + " \r\n" + txtStatus.Text;
        }
        private void bwGo_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
        {
            _stopwatch.Stop();
            _totalStopwatch.Stop();

            btnGo.Text = "Go";
            if (!e.Cancelled)
                txtStatus.Text = "Done !!!\r\n" + txtStatus.Text;
            else
                txtStatus.Text = "Cancelled :(\r\n" + txtStatus.Text;
        }
        private void bwExcel_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
        {
            _stopwatch.Stop();
            _totalStopwatch.Stop();

            btnExcel.Text = "Excel";
            if (!e.Cancelled)
            {
                txtStatus.Text = "Done !!!\r\n" + txtStatus.Text;
                var sheet = (string)e.Result;
                Clipboard.SetText(sheet, TextDataFormat.Text);
            }
            else
            {
                txtStatus.Text = "Cancelled :(\r\n" + txtStatus.Text;
            }
        }

        #endregion
        #region Get Data
        private IList<SaleJson> GetSale()
        {
            var currentDirectory = AppDomain.CurrentDomain.BaseDirectory;
            var sale = Path.Combine(currentDirectory, "sale.json");
            if (!File.Exists(sale))
                throw new ArgumentException("Sale not found!");
            var startDate = dtpStart.Value.Date;
            var finishDate = dtpFinish.Value.Date;
            var fileContents = new StreamReader(File.OpenRead(sale)).ReadToEnd();
            JavaScriptSerializer jss = new JavaScriptSerializer();
            var data = jss.Deserialize<IList<SaleJson>>(fileContents);
            IList<SaleJson> list = new List<SaleJson>();
            foreach (var item in data)
            {
                if (item.FinishDate.Date < startDate.Date || item.StartDate.Date > finishDate.Date)
                    continue;
                list.Add(item);
            }
            return list;
        }
        private IList<CreditJson> GetCredit()
        {
            var currentDirectory = AppDomain.CurrentDomain.BaseDirectory;
            var credit = Path.Combine(currentDirectory, "credit.json");
            if (!File.Exists(credit))
                throw new ArgumentException("Credit not found!");
            var startDate = dtpStart.Value.Date;
            var finishDate = dtpFinish.Value.Date;
            var fileContents = new StreamReader(File.OpenRead(credit)).ReadToEnd();
            JavaScriptSerializer jss = new JavaScriptSerializer();
            var data = jss.Deserialize<IList<CreditJson>>(fileContents);
            IList<CreditJson> list = new List<CreditJson>();
            foreach (var item in data)
            {
                if (item.Date.Date < startDate.Date || item.Date.Date > finishDate.Date)
                    continue;
                list.Add(item);
            }
            var am = list.GroupBy(x => x.Date).Where(x => x.Count() > 1).Select(x => x.Key);
            if (am.Count() > 0)
                throw new ArgumentException("Duplicate dates in credit: " + am.Select(x => x.ToString("dd-MMM-yyyy")).Aggregate((c, n) => c + ", " + n));
            return list;
        }
        private IList<BeerJson> GetBeer()
        {
            var currentDirectory = AppDomain.CurrentDomain.BaseDirectory;
            var beer = Path.Combine(currentDirectory, "beer.json");
            if (!File.Exists(beer))
                throw new ArgumentException("Beer not found!");
            var startDate = dtpStart.Value.Date;
            var finishDate = dtpFinish.Value.Date;
            var fileContents = new StreamReader(File.OpenRead(beer)).ReadToEnd();
            JavaScriptSerializer jss = new JavaScriptSerializer();
            var data = jss.Deserialize<IList<BeerJson>>(fileContents);
            IList<BeerJson> list = new List<BeerJson>();
            foreach (var item in data)
            {
                if (item.Date.Date < startDate.Date || item.Date.Date > finishDate.Date)
                    continue;
                list.Add(item);
            }
            return list;
        }
        private static decimal TryConvert(string amount)
        {
            decimal result = 0;
            decimal.TryParse(amount, out result);
            return result;
        }
        #endregion

        #region Tally
        private void btnTally_Click(object sender, EventArgs e)
        {
            var startDate = dtpStart.Value.Date;
            var finishDate = dtpFinish.Value.Date;
            var daybook = @"
<ENVELOPE>
<HEADER>
<TALLYREQUEST>Import Data</TALLYREQUEST>
</HEADER>
<BODY>
<IMPORTDATA>
<REQUESTDESC>
<REPORTNAME>All Masters</REPORTNAME>
<STATICVARIABLES>
<SVCURRENTCOMPANY>Peitho Foods Pvt. Ltd.(2012-13)</SVCURRENTCOMPANY>
</STATICVARIABLES>
</REQUESTDESC>
<REQUESTDATA>
<TALLYMESSAGE xmlns:UDF=""TallyUDF"">
";

            for (var date = startDate; date <= finishDate; date = date.AddDays(1))
            {
                daybook += GetVoucher(date);
            }
            daybook += @"
</TALLYMESSAGE>
</REQUESTDATA>
</IMPORTDATA>
</BODY>
</ENVELOPE>
";
            Clipboard.SetText(daybook, TextDataFormat.Text);
        }
        private static string GetVoucher(DateTime date)
        {
            var currentStart = date.AddHours(7);
            var currentFinish = date.AddDays(1).AddHours(7);
            var voucher = string.Empty;
            var cash = 0M;
            using (var bi = new ManagementBI())
            {
                var saleAndVat = bi.GetSaleAndVat(currentStart, currentFinish);
                foreach (var item in saleAndVat)
                {
                    if (item.Net == 0)
                        throw new ArgumentException();
                    cash += Math.Round(item.Net);
                    var rate = item.Rate * 100 / 1.05M;
                    voucher += GetLedger(string.Format("Sale @ {0:#} %", rate), item.Net.ToString("#0.00"));
                    var vat = Math.Round(item.Vat);
                    if (vat != 0)
                    {
                        cash += vat;
                        voucher += GetLedger(string.Format("Output Vat @ {0:#}%", rate), vat.ToString("#0.00"));
                    }
                }

                var st = Math.Round(bi.GetServiceTax(currentStart, currentFinish));
                if (st != 0)
                {
                    cash += st;
                    voucher += GetLedger("Central Service Tax", st.ToString("#0.00"));
                }

                if (cash != 0)
                {
                    voucher = GetLedger("Cash", cash.ToString("#0.00")) + voucher;
                }
            }
            return voucher != "" ? GetVoucher(date.ToString("yyyyMMdd"), voucher) : "";
        }
        private static string GetVoucher(string date, string ledgers)
        {
            #region Voucher Template
            var template = @"
 <VOUCHER REMOTEID=""{0}"" VCHTYPE=""Journal"" ACTION=""Create"">
  <DATE>{1}</DATE>
  <GUID>{0}</GUID>
  <VOUCHERTYPENAME>Journal</VOUCHERTYPENAME>
  <VOUCHERNUMBER>349</VOUCHERNUMBER>
  <PARTYLEDGERNAME>Cash</PARTYLEDGERNAME>
  <CSTFORMISSUETYPE/>
  <CSTFORMRECVTYPE/>
  <FBTPAYMENTTYPE>Default</FBTPAYMENTTYPE>
  <VCHGSTCLASS/>
  <ENTEREDBY>Admin</ENTEREDBY>
  <DIFFACTUALQTY>No</DIFFACTUALQTY>
  <AUDITED>No</AUDITED>
  <FORJOBCOSTING>No</FORJOBCOSTING>
  <ISOPTIONAL>No</ISOPTIONAL>
  <EFFECTIVEDATE>{1}</EFFECTIVEDATE>
  <USEFORINTEREST>No</USEFORINTEREST>
  <USEFORGAINLOSS>No</USEFORGAINLOSS>
  <USEFORGODOWNTRANSFER>No</USEFORGODOWNTRANSFER>
  <USEFORCOMPOUND>No</USEFORCOMPOUND>
  <ALTERID> 3525</ALTERID>
  <EXCISEOPENING>No</EXCISEOPENING>
  <ISCANCELLED>No</ISCANCELLED>
  <HASCASHFLOW>Yes</HASCASHFLOW>
  <ISPOSTDATED>No</ISPOSTDATED>
  <USETRACKINGNUMBER>No</USETRACKINGNUMBER>
  <ISINVOICE>No</ISINVOICE>
  <MFGJOURNAL>No</MFGJOURNAL>
  <HASDISCOUNTS>No</HASDISCOUNTS>
  <ASPAYSLIP>No</ASPAYSLIP>
  <ISDELETED>No</ISDELETED>
  <ASORIGINAL>No</ASORIGINAL>
{2}
 </VOUCHER>
";
            var servicetaxtemplate = @"";
            #endregion
            return string.Format(template, Guid.NewGuid(), date, ledgers);
        }
        private static string GetLedger(string ledgername, string amount)
        {
            var isDeemedPositive = string.Empty;
            var isPartyLedger = string.Empty;
            switch (ledgername)
            {
                case "Cash":
                    isDeemedPositive = "Yes";
                    isPartyLedger = "Yes";
                    amount = "-" + amount;
                    break;
                case "Sale 12.5%":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;
                case "Sale @ 15%":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;
                case "Sale @ 25 %":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;
                case "Sale Tax Free":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;
                case "Output Vat 12.5%":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;
                case "Output Vat @ 15%":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;
                case "Output Vat @ 25%":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;
                case "Central Service Tax@3.708%":
                    isDeemedPositive = "No";
                    isPartyLedger = "No";
                    break;


            }
            #region Voucher Template
            const string template = @"
  <ALLLEDGERENTRIES.LIST>
   <LEDGERNAME>{0}</LEDGERNAME>
   <GSTCLASS/>
   <ISDEEMEDPOSITIVE>{1}</ISDEEMEDPOSITIVE>
   <LEDGERFROMITEM>No</LEDGERFROMITEM>
   <REMOVEZEROENTRIES>No</REMOVEZEROENTRIES>
   <ISPARTYLEDGER>{2}</ISPARTYLEDGER>
   <AMOUNT>{3}</AMOUNT>
  </ALLLEDGERENTRIES.LIST>
";
            var servicetaxtemplate = @"";
            #endregion
            return string.Format(template, ledgername, isDeemedPositive, isPartyLedger, amount);
        }
        #endregion

        private void btnFinalSanction_Click(object sender, EventArgs e)
        {
            var startDate = dtpStart.Value.Date.AddHours(7);
            var finishDate = dtpFinish.Value.Date.AddDays(1).AddHours(7);
            using (var bi = new ManagementBI())
            {
                bi.SetPayments(startDate, finishDate);
                bi.UpdateBillID(startDate, finishDate);
                bi.SaveChanges();
            }
        }
    }
}