using System;
using System.Collections.Generic;
using System.Text;
using Tanshu.Accounts.Contracts;
using System.Data.SqlClient;
using System.Data;
//using System.Windows.Forms;
using Tanshu.Data.DAO;
using Tanshu.Accounts.DAOFactory;


namespace Tanshu.Accounts.SqlDAO
{
    public class SaleVoucherMixDAO : BaseDAO, ISaleVoucherMixDAO
    {
        public SaleVoucherMixDAO(IConnectionDAO connection)
        :base (connection)
    {}
        public SalesBillItemBO GetDefaultSaleBillItem(Guid productID)
        {
            bool isComplex;
            using (SqlCommand cmd = new SqlCommand("SELECT Count(*) FROM Products WHERE ProductID = @ProductID"))
            {
                cmd.Parameters.AddWithValue("@ProductID", productID);
                if ((int)connection.ExecuteScalar(cmd) != 0)
                    isComplex = false;
                else
                    isComplex = true;
            }
            if (!isComplex)
            {
                string query = @"
SELECT p.ProductID, p.Name + ' (' + p.Units +')', 
p.SalePrice, p.SaleTaxID, t.Rate AS TaxRate, 
p.SaleLedgerID, l.CostCenterID
FROM Products p INNER JOIN Tax t ON p.SaleTaxID = t.TaxID INNER JOIN Ledgers l ON p.SaleLedgerID = l.LedgerID
WHERE p.ProductID = @ProductID
";
                using (SqlCommand cmd = new SqlCommand(query))
                {
                    cmd.Parameters.AddWithValue("@ProductID", productID);
                    using (IDataReader dr = connection.ExecuteReader(cmd))
                    {
                        dr.Read();
                        SalesBillItemBO mySale = new SalesBillItemBO
                        {
                            productID = dr.GetGuid(0),
                            Name = dr.GetString(1),
                            Price = dr.GetDecimal(2),
                            Tax = dr.GetDecimal(4),
                            Discount = 0,
                            Printed = 0,
                            Quantity = 1
                        };
                        return mySale;
                    }
                }
            }
            else
            {
                string query = @"
SELECT c.ComplexProductID, c.Name + ' (' + c.Units +')' AS Name, 
c.SalePrice, c.SaleTaxID, t.Rate AS TaxRate
FROM ComplexProducts c INNER JOIN Tax t ON c.SaleTaxID = t.TaxID 
WHERE c.ComplexProductID = @ProductID
GROUP BY c.ComplexProductID, c.Name + ' (' + c.Units +')' , 
c.SalePrice, c.SaleTaxID, t.Rate
";
                using (SqlCommand cmd = new SqlCommand(query))
                {
                    cmd.Parameters.AddWithValue("@ProductID", productID);
                    using (IDataReader dr = connection.ExecuteReader(cmd))
                    {
                        dr.Read();
                        SalesBillItemBO mySale = new SalesBillItemBO
                        {
                            productID = dr.GetGuid(0),
                            Name = dr.GetString(1),
                            Price = dr.GetDecimal(2),
                            Tax = dr.GetDecimal(4),
                            Discount = 0,
                            Printed = 0,
                            Quantity = 1
                        };
                        return mySale;
                    }
                }
            }

        }
        public decimal GetProductDiscountLimit(Guid productID)
        {
            string query = @"SELECT t.DiscountLimit FROM ProductTypes t INNER JOIN Products p
ON t.ProductTypeID = p.ProductTypeID WHERE p.ProductID = @ProductID";

            decimal discountLimit = 0;
            using (SqlCommand cmd = new SqlCommand(query))
            {
                cmd.Parameters.AddWithValue("@ProductID", productID);
                discountLimit = (decimal)connection.ExecuteScalar(cmd);
            }

            return discountLimit;
        }
        public bool IsBillPrinted(Guid voucherID)
        {
            string query = @"SELECT Printed FROM SaleVoucher WHERE VoucherID = @VoucherID";
            bool printed = true;
            using (SqlCommand cmd = new SqlCommand(query))
            {
                cmd.Parameters.AddWithValue("@VoucherID", voucherID);
                printed = (bool)connection.ExecuteScalar(cmd);
            }
            return printed;
        }
      


        public List<PendingBillsBO> GetPendingBills(PendingType list)
        {
            string query = @"
        SELECT t.VoucherID, s.Alarm AS Alarm, s.TableID AS TableID, 
        (SELECT SUM(Amount) FROM Inventory WHERE VoucherID = t.VoucherID) AS Amount,
        s.BillID, t.CreationDate, u.Name, CAST(0 AS bit), s.KotID, t.LastEditDate, s.Printed
        FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID AND s.Paid = 0 AND s.Void = 0
        INNER JOIN Users u ON t.UserID = u.UserID
        ";
            if (list == PendingType.Alarms)
                query += "WHERE s.Alarm IS NOT NULL ";
            else
                query += "WHERE s.Alarm IS NULL ";
            if (list == PendingType.Important)
                query += "AND s.IsImportant = 1 ";
            else
                query += "AND s.IsImportant = 0 ";
            if (list == PendingType.Today)
                query += string.Format("AND t.LastEditDate >= '{0:dd-MMM-yyyy} 00:00:00' ", DateTime.Now);
            else if (list == PendingType.Week)
                query += string.Format("AND t.LastEditDate >= '{0:dd-MMM-yyyy} 00:00:00' ", DateTime.Now.AddDays(-7));
            query += "ORDER BY t.CreationDate ";
            using (IDataReader dr = connection.ExecuteReader(query))
            {
                List<PendingBillsBO> outList = new List<PendingBillsBO>();
                while (dr.Read())
                {
                    PendingBillsBO local = new PendingBillsBO();
                    local.voucherID = dr.GetGuid(0);
                    local.Alarm = !dr.IsDBNull(1);
                    if (local.Alarm)
                        local.AlarmTime = dr.GetDateTime(1);
                    local.TableID = dr.GetString(2);
                    if (!dr.IsDBNull(3))
                        local.Amount = dr.GetDecimal(3);
                    local.BillNo = dr.GetString(4);
                    local.BookingTime = dr.GetDateTime(5);
                    local.Cashier = dr.GetString(6);
                    local.Important = dr.GetBoolean(7);
                    local.Kot = dr.GetString(8);
                    local.LastEdited = dr.GetDateTime(9);
                    local.Printed = dr.GetBoolean(10);
                    outList.Add(local);
                }
                return outList;
            }

        }
        public Nullable<Guid> GetPendingVoucherID(string tableID)
        {

            string query = "SELECT VoucherID FROM SaleVoucher where TableID = @TableID and Paid = 0 and Void = 0";
            Guid? voucherID;
            using (SqlCommand cmd = new SqlCommand(query))
            {
                cmd.Parameters.AddWithValue("@TableID", tableID);
                using (IDataReader dr = connection.ExecuteReader(cmd))
                {
                    if (dr.Read())
                    {
                        voucherID = dr.GetGuid(0);
                        dr.Close();
                        dr.Dispose();
                        return voucherID;
                    }
                    return null;
                }
            }
        }
        public List<InventoryBO> SaleInventory(Dictionary<BillItemKey, SalesBillItemBO>.ValueCollection list, Guid? voucherID)
        {
            Dictionary<Guid, InventoryBO> localList = new Dictionary<Guid, InventoryBO>();
            foreach (SalesBillItemBO item in list)
            {
                InventoryBO temp = new InventoryBO();
                #region Complex
                //if (item.location == "complex")
                //{
                //    decimal balance;
                //    string query = "SELECT SUM(Quantity * p.SalePrice) FROM ComplexProducts c INNER JOIN Products p ON c.ProductID = p.ProductID WHERE ComplexProductID = @ComplexProductID";
                //    using (SqlCommand cmd = new SqlCommand(query))
                //    {
                //        cmd.Parameters.AddWithValue("@ComplexProductID", item.productID);
                //        balance = (decimal)connection.ExecuteScalar(cmd);
                //        balance = (item.Price - balance) / balance;
                //    }
                //    query = "SELECT c.ProductID, c.Quantity, p.SalePrice FROM ComplexProducts c INNER JOIN Products p ON c.ProductID = p.ProductID WHERE ComplexProductID = @ComplexProductID";
                //    using (SqlCommand cmd = new SqlCommand(query))
                //    {
                //        cmd.Parameters.AddWithValue("@ComplexProductID", item.productID);
                //        SqlDataReader dr = connection.ExecuteReader(cmd);
                //        while (dr.Read())
                //        {
                //            InventoryBO temp = new InventoryBO();
                //            if (voucherID.HasValue)
                //                temp.VoucherID = voucherID.Value;
                //            temp.InventoryID = Guid.NewGuid();
                //            temp.Discount = item.Discount;
                //            temp.IsRateFinal = true;
                //            temp.ComplexProductID = item.productID;
                //            temp.ProductID = dr.GetGuid(0);
                //            temp.Quantity = item.Quantity * dr.GetDecimal(1);
                //            temp.Rate = dr.GetDecimal(2) * (1 + balance);
                //            temp.Tax = item.Tax;
                //            localList.Add(temp);
                //        }
                //        dr.Close();
                //        dr.Dispose();
                //    }

                //}
                //else
                //{
                // Add the lower loop here
                //}
                #endregion
                if (localList.ContainsKey(item.productID))
                {
                    temp = localList[item.productID];
                    temp.Quantity += item.Quantity;
                }
                else
                {
                    if (voucherID.HasValue)
                        temp.VoucherID = voucherID.Value;
                    temp.InventoryID = Guid.NewGuid();
                    temp.Discount = item.Discount;
                    temp.IsRateFinal = true;
                    temp.ComplexProductID = null;
                    temp.ProductID = item.productID;
                    temp.Quantity = item.Quantity;
                    temp.Rate = item.Price;
                    temp.Tax = item.Tax;
                    localList.Add(item.productID, temp);
                }
            }
            List<InventoryBO> outList = new List<InventoryBO>();
            foreach (var item in localList)
                outList.Add(item.Value);
            return outList;
        }
        public void GetComplexBillInformation(Guid voucherID, Guid complexProductID, ref decimal rate, ref decimal quantity, ref string name)
        {

            string query = @"
SELECT TOP 1 i.Quantity / c.Quantity FROM Inventory i INNER JOIN ComplexProducts c ON i.ComplexProductID = c.ComplexProductID AND i.ProductID = c.ProductID
WHERE i.VoucherID = @VoucherID
AND c.ComplexProductID = @ComplexProductID
";
            using (SqlCommand cmd = new SqlCommand(query))
            {
                cmd.Parameters.AddWithValue("@VoucherID", voucherID);
                cmd.Parameters.AddWithValue("@ComplexProductID", complexProductID);
                quantity = (decimal)connection.ExecuteScalar(cmd);
            }
            using (SqlCommand cmd = new SqlCommand("SELECT TOP 1 SalePrice, Name FROM ComplexProducts WHERE ComplexProductID = @ComplexProductID"))
            {
                cmd.Parameters.AddWithValue("@VoucherID", voucherID);
                cmd.Parameters.AddWithValue("@ComplexProductID", complexProductID);
                using (IDataReader dr = connection.ExecuteReader(cmd))
                {
                    dr.Read();
                    rate = dr.GetDecimal(0);
                    name = dr.GetString(1);
                }
            }

        }

        private class BillPaidClass
        {
            public Guid VoucherID { get; set; }
            public string KotID { get; set; }
            public bool Printed { get; set; }
        }
        public void DeclareBillsPaid(Guid userID, List<Guid> billList, bool creditCard)
        {
            List<Guid> removeItems = new List<Guid>();
            string query = "SELECT VoucherID, KotID, Printed FROM SaleVoucher WHERE VoucherID IN (";
            foreach (Guid voucherID in billList)
            {
                query += string.Format("'{0}', ", voucherID);
            }
            query = query.Substring(0, query.Length - 2) + ")";

            List<BillPaidClass> pbc = new List<BillPaidClass>();
            using (SqlCommand cmd = new SqlCommand(query))
            {
                using (IDataReader dr = connection.ExecuteReader(cmd))
                {
                    while (dr.Read())
                    {
                        pbc.Add(new BillPaidClass
                        {
                            VoucherID = dr.GetGuid(0),
                            KotID = dr.GetString(1),
                            Printed = dr.GetBoolean(2)
                        });
                    }
                }
            }
            foreach (BillPaidClass item in pbc)
            {
                //if ((item.Printed != false) || (MessageBox.Show("Pay unprinted bill No.: " + item.KotID + " ?", "Pay unprinted bill", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button2) == DialogResult.Yes))
                if (item.Printed != false)
                {
                    using (SqlCommand cmd = new SqlCommand("UPDATE SaleVoucher SET Paid = 1, CreditCard = @CreditCard WHERE VoucherID = @VoucherID; UPDATE Vouchers SET UserID = @UserID, LastEditDate = GETDATE() WHERE VoucherID = @VoucherID"))
                    {
                        cmd.Parameters.AddWithValue("@VoucherID", item.VoucherID);
                        cmd.Parameters.AddWithValue("@UserID", userID);
                        cmd.Parameters.AddWithValue("@CreditCard", creditCard);
                        connection.ExecuteNonQuery(cmd);
                    }
                    removeItems.Add(item.VoucherID);
                }
            }

            foreach (Guid item in removeItems)
                billList.Remove(item);
        }

        public void ToggleImportant(Guid voucherID)
        {
            using (SqlCommand cmd = new SqlCommand("UPDATE SaleVoucher SET IsImportant= CASE WHEN IsImportant = 0 THEN 1 ELSE 0 END FROM SaleVoucher WHERE VoucherID = @VoucherID"))
            {
                cmd.Parameters.AddWithValue("@VoucherID", voucherID);
                connection.ExecuteNonQuery(cmd);
            }
        }
    }
}