using System;
using System.Collections.Generic;
using System.Text;
using System.Data.SqlClient;
using Tanshu.Accounts.Contracts;
using Tanshu.Data.DAO;
using Tanshu.Accounts.SqlDAO;
using Tanshu.Accounts.Entities;
using NHibernate.Criterion;

namespace Tanshu.Accounts.Repository
{
    public class SalesAnalysisBI
    {
        public IList<SalesAnalysisDetail> GetSaleDetail(DateTime startDate, DateTime finishDate, int costCenterID)
        {
            string query = @"
SELECT p.Name AS Product, pt.Name AS Section, SUM(i.Quantity) AS Quantity, SUM(Amount) AS Amount
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
INNER JOIN Products p ON i.ProductID = p.ProductID
INNER JOIN ProductTypes pt ON p.ProductTypeID = pt.ProductTypeID
INNER JOIN Ledgers l ON p.SaleLedgerID = l.LedgerID
WHERE t.Type = 'S' AND s.Paid = 1 AND s.Void = 0
AND t.LastEditDate BETWEEN :StartDate AND :FinishDate AND l.CostCenterID = :CostCenterID
GROUP BY p.Name, pt.Name
ORDER BY Amount DESC;";
            using (var session = SessionManager.Session)
            {
                return session
                    .CreateSQLQuery(query)
                    .AddEntity(typeof(SalesAnalysisDetail))
                    .SetDateTime("StartDate", startDate)
                    .SetDateTime("FinishDate", finishDate)
                    .SetInt32("CostCenterID", costCenterID)
                    .List<SalesAnalysisDetail>();
            }
        }
        public IList<SalesAnalysis> GetSale(DateTime startDate, DateTime finishDate)
        {
            using (var session = SessionManager.Session)
            {
                var temp = from sal in session.QueryOver<SaleVoucher>()
                           where sal.Date >= startDate && sal.Date <= finishDate
                               && sal.Settled != SettleOptionFactory.ONoCharge && sal.Void == false 
                           select sal.Inventories;

            string query = @"
SELECT c.CostCenterID AS TypeID, c.Name AS Section, SUM(i.Quantity) AS Quantity, SUM(Amount) AS Gross, SUM(i.Quantity * i.Rate * (1 - Discount)) AS Net
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
INNER JOIN Products p ON i.ProductID = p.ProductID
INNER JOIN Ledgers l ON p.SaleLedgerID = l.LedgerID
INNER JOIN CostCenters c ON l.CostCenterID = c.CostCenterID
WHERE t.Type = 's' AND s.Paid = 1 AND s.Void = 0
AND t.LastEditDate BETWEEN @StartDate AND @FinishDate
GROUP BY c.CostCenterID, c.Name
ORDER BY Net DESC;";
                return session
                   .CreateSQLQuery(query)
                   .AddEntity(typeof(SalesAnalysis))
                   .SetDateTime("StartDate", startDate)
                   .SetDateTime("FinishDate", finishDate)
                   .List<SalesAnalysis>();
            }
        }
        public void GetAdditionalInfo(ref decimal freeSale, ref decimal voids, ref decimal pending, ref decimal net, ref decimal tax, DateTime startDate, DateTime finishDate)
        {
            string query;
            using (var session = SessionManager.Session)
            {
                query = @"
SELECT ISNULL(SUM(Quantity * Rate), 0) AS Amount
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
WHERE t.Type = 's' AND s.Paid = 1 AND s.Void = 0
AND t.LastEditDate BETWEEN @StartDate AND @FinishDate
AND i.Amount = 0";
                freeSale = session
                    .CreateSQLQuery(query)
                    .AddEntity(typeof(decimal))
                    .SetDateTime("StartDate", startDate)
                    .SetDateTime("FinishDate", finishDate)
                    .UniqueResult<decimal>();
                freeSale = Math.Round(freeSale);

                query = @"
SELECT ISNULL(SUM(Amount), 0) AS Amount
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
WHERE t.Type = 's'
AND t.LastEditDate BETWEEN @StartDate AND @FinishDate
AND s.Void = 1";
                voids = session
                    .CreateSQLQuery(query)
                    .AddEntity(typeof(decimal))
                    .SetDateTime("StartDate", startDate)
                    .SetDateTime("FinishDate", finishDate)
                    .UniqueResult<decimal>();
                voids = Math.Round(voids);

                query = @"
SELECT ISNULL(SUM(Amount), 0) AS Amount
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
WHERE t.Type = 's' AND s.Paid = 0 AND s.Void = 0
AND t.LastEditDate BETWEEN @StartDate AND @FinishDate
ORDER BY Amount DESC;";
                pending = session
                    .CreateSQLQuery(query)
                    .AddEntity(typeof(decimal))
                    .SetDateTime("StartDate", startDate)
                    .SetDateTime("FinishDate", finishDate)
                    .UniqueResult<decimal>();
                pending = Math.Round(pending);

                query = @"
SELECT ISNULL(SUM(Quantity * Rate * (1 - Discount )), 0) AS Amount
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
WHERE t.Type = 's' AND s.Paid = 1 AND s.Void = 0
AND t.LastEditDate BETWEEN @StartDate AND @FinishDate";
                net = session
                    .CreateSQLQuery(query)
                    .AddEntity(typeof(decimal))
                    .SetDateTime("StartDate", startDate)
                    .SetDateTime("FinishDate", finishDate)
                    .UniqueResult<decimal>();
                net = Math.Round(net);

                query = @"
SELECT ISNULL(SUM(Amount), 0) AS Amount
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
WHERE t.Type = 's' AND s.Paid = 1 AND s.Void = 0
AND t.LastEditDate BETWEEN @StartDate AND @FinishDate";
                tax = session
                    .CreateSQLQuery(query)
                    .AddEntity(typeof(decimal))
                    .SetDateTime("StartDate", startDate)
                    .SetDateTime("FinishDate", finishDate)
                    .UniqueResult<decimal>();
                tax = Math.Round(tax);
            }
        }
        public IList<SalesAnalysis> GetSalesTaxReturn(DateTime startDate, DateTime finishDate, ref decimal freeSale, ref decimal voids, ref decimal pending, ref decimal net, ref decimal tax)
        {
            IList<SalesAnalysis> list = new List<SalesAnalysis>();

            string query;
            using (var session = SessionManager.Session)
            {
                query = @"
SELECT p.Name AS Product, pt.Name AS Section, SUM(i.Quantity) AS Quantity, SUM(Amount) AS Amount
FROM Vouchers t INNER JOIN SaleVoucher s ON t.VoucherID = s.VoucherID
INNER JOIN Inventory i ON t.VoucherID = i.VoucherID
INNER JOIN Products p ON i.ProductID = p.ProductID
INNER JOIN ProductTypes pt ON p.ProductTypeID = pt.ProductTypeID
INNER JOIN Ledgers l ON p.SaleLedgerID = l.LedgerID
WHERE t.Type = 'S' AND s.Paid = 1 AND s.Void = 0
AND t.LastEditDate BETWEEN :StartDate AND :FinishDate AND l.CostCenterID = :CostCenterID
GROUP BY p.Name, pt.Name
ORDER BY Amount DESC;";
                list = session
                    .CreateSQLQuery(query)
                    .AddEntity(typeof(SalesAnalysis))
                    .SetDateTime("StartDate", startDate)
                    .SetDateTime("FinishDate", finishDate)
                    .List<SalesAnalysis>();
            }
            GetAdditionalInfo(ref freeSale, ref voids, ref pending, ref net, ref tax, startDate, finishDate);
            return list;
        }
    }
}