using System;
using System.Data.SqlClient;
using Tanshu.Accounts.Contracts;
using Tanshu.Data.DAO;
using Tanshu.Accounts.DAOFactory;

namespace Tanshu.Accounts.SqlDAO
{
    public class SaleVoucherDAO : BaseDAO, ISaleVoucherDAO
    {
        public SaleVoucherDAO(IConnectionDAO connection)
            : base(connection)
        { }

        public bool Insert(SaleVoucherBO saleVoucher)
        {
            using (var cmd = new SqlCommand(@"
SELECT @KotID = ISNULL('K-' + CAST(MAX(CAST(SUBSTRING(KotID, 3,8) AS int)) + 1 AS nvarchar(8)), 'K-1') FROM [dbo].[SaleVoucher]
	IF @Printed = 1
	BEGIN
		SELECT @BillID = ISNULL(CAST(MAX(CAST(REPLACE(BillID, '-', '') AS int)) + 1 AS nvarchar(9)), '010001') FROM SaleVoucher WHERE BillID LIKE '__-____'
		IF LEN(@BillID) = 5
		SET @BillID = '0' + @BillID
		SET @BillID = SUBSTRING(@BillID, 1, 2) + '-' + SUBSTRING(@BillID, 3, 7) 
		IF SUBSTRING(@BillID,3,7) = '-0000'
		SET @BillID = SUBSTRING(@BillID, 1, 2) + '-0001'
	END
	ELSE
	BEGIN
		SET @BillID = @KotID
	END
    IF @TableID = ''
    BEGIN
      SELECT @TableID = 'C' + CAST(ISNULL(MAX(CAST(SUBSTRING(TableID, 2, 10) AS int)), 0) + 1 AS nvarchar(10)) FROM SaleVoucher WHERE TableID LIKE 'C%' AND PaidStatus = 1
    END
	INSERT INTO [dbo].[SaleVoucher] ([VoucherID], [Floor], [BillID], [TableID], [WaiterID], [CustomerID], [AdvanceID], [PaidStatus], [VoidReason], [Printed], [Alarm], [KotID])
	VALUES (@VoucherID, @Floor, @BillID, @TableID, @WaiterID, @CustomerID, @AdvanceID, @PaidStatus, @VoidReason, @Printed, @Alarm, @KotID)
	SELECT @timestamp = timestamp FROM [dbo].[SaleVoucher] WHERE VoucherID = @VoucherID
"))
            {
                cmd.Parameters.AddWithValue("@VoucherID", saleVoucher.VoucherID);
                cmd.Parameters.AddWithValue("@Floor", saleVoucher.Floor);
                cmd.Parameters.Add("@BillID", System.Data.SqlDbType.NVarChar, 10);
                cmd.Parameters["@BillID"].Direction = System.Data.ParameterDirection.Output;
                cmd.Parameters.AddWithValue("@TableID", saleVoucher.TableID);
                cmd.Parameters.AddWithValue("@WaiterID", saleVoucher.WaiterID);
                cmd.Parameters.AddWithValue("@CustomerID", saleVoucher.CustomerID);
                if (saleVoucher.AdvanceID.HasValue)
                    cmd.Parameters.AddWithValue("@AdvanceID", saleVoucher.AdvanceID);
                else
                    cmd.Parameters.AddWithValue("@AdvanceID", DBNull.Value);
                cmd.Parameters.AddWithValue("@PaidStatus", (int)saleVoucher.PaidStatus);
                if (saleVoucher.VoidReason == null)
                    saleVoucher.VoidReason = string.Empty;
                cmd.Parameters.AddWithValue("@VoidReason", saleVoucher.VoidReason);
                cmd.Parameters.AddWithValue("@Printed", saleVoucher.Printed);
                if (saleVoucher.Alarm.HasValue)
                    cmd.Parameters.AddWithValue("@Alarm", saleVoucher.Alarm);
                else
                    cmd.Parameters.AddWithValue("@Alarm", DBNull.Value);
                cmd.Parameters.Add("@KotID", System.Data.SqlDbType.NVarChar, 10);
                cmd.Parameters["@KotID"].Direction = System.Data.ParameterDirection.Output;
                cmd.Parameters.Add("@timestamp", System.Data.SqlDbType.Timestamp);
                cmd.Parameters["@timestamp"].Direction = System.Data.ParameterDirection.Output;
                connection.ExecuteNonQuery(cmd);
                saleVoucher.SaleTimestamp = (byte[])cmd.Parameters["@timestamp"].Value;
                saleVoucher.BillID = (string)cmd.Parameters["@BillID"].Value;
                saleVoucher.KotID = (string)cmd.Parameters["@KotID"].Value;
                return true;
            }
        }
        public bool Update(SaleVoucherBO saleVoucher)
        {
            using (var cmd = new SqlCommand(@"
IF @Printed = 1 AND (SELECT Printed FROM SaleVoucher WHERE VoucherID = @VoucherID) = 0 
	BEGIN
		SELECT @BillID = ISNULL(CAST(MAX(CAST(REPLACE(BillID, '-', '') AS int)) + 1 AS nvarchar(9)), '010001') FROM SaleVoucher WHERE BillID LIKE '__-____'
		IF LEN(@BillID) = 5
		SET @BillID = '0' + @BillID
		SET @BillID = SUBSTRING(@BillID, 1, 2) + '-' + SUBSTRING(@BillID, 3, 7) 
		IF SUBSTRING(@BillID,3,7) = '-0000'
		SET @BillID = SUBSTRING(@BillID, 1, 2) + '-0001'
	END
    ELSE
    BEGIN
        SELECT @BillID = BillID FROM SaleVoucher WHERE VoucherID = @VoucherID
    END
    IF @TableID = ''
    BEGIN
      SELECT @TableID = 'C' + CAST(ISNULL(MAX(CAST(SUBSTRING(TableID, 2, 10) AS int)), 0) + 1 AS nvarchar(10)) FROM SaleVoucher WHERE TableID LIKE 'C%' AND PaidStatus = 1
    END
	IF (SELECT Printed FROM SaleVoucher WHERE VoucherID = @VoucherID) = 1
		SET @Printed = 1
	UPDATE [dbo].[SaleVoucher] SET 
		[Floor] = @Floor, 
		[BillID] = @BillID, 
		[TableID] = @TableID, 
		[WaiterID] = @WaiterID, 
		[CustomerID] = @CustomerID, 
        [AdvanceID] = @AdvanceID, 
		[PaidStatus] = @PaidStatus, 
		[VoidReason] = @VoidReason, 
		[Printed] = @Printed, 
		[Alarm] = @Alarm
		WHERE VoucherID = @VoucherID

    UPDATE Vouchers SET LastEditDate = GETDATE() WHERE VoucherID = @VoucherID

	SELECT @timestamp = timestamp, @KotID = KotID FROM SaleVoucher WHERE VoucherID = @VoucherID
"))
            {
                cmd.Parameters.AddWithValue("@VoucherID", saleVoucher.VoucherID);

                cmd.Parameters.Add("@BillID", System.Data.SqlDbType.NVarChar, 10);
                cmd.Parameters["@BillID"].Direction = System.Data.ParameterDirection.Output;
                cmd.Parameters.AddWithValue("@Floor", saleVoucher.Floor);
                cmd.Parameters.AddWithValue("@TableID", saleVoucher.TableID);
                cmd.Parameters.AddWithValue("@WaiterID", saleVoucher.WaiterID);
                cmd.Parameters.AddWithValue("@CustomerID", saleVoucher.CustomerID);
                if (saleVoucher.AdvanceID.HasValue)
                    cmd.Parameters.AddWithValue("@AdvanceID", saleVoucher.AdvanceID);
                else
                    cmd.Parameters.AddWithValue("@AdvanceID", DBNull.Value);
                cmd.Parameters.AddWithValue("@PaidStatus", saleVoucher.PaidStatus);
                if (saleVoucher.VoidReason == null)
                    saleVoucher.VoidReason = string.Empty;
                cmd.Parameters.AddWithValue("@VoidReason", saleVoucher.VoidReason);
                cmd.Parameters.AddWithValue("@Printed", saleVoucher.Printed);
                if (saleVoucher.Alarm.HasValue)
                    cmd.Parameters.AddWithValue("@Alarm", saleVoucher.Alarm);
                else
                    cmd.Parameters.AddWithValue("@Alarm", DBNull.Value);
                cmd.Parameters.Add("@KotID", System.Data.SqlDbType.NVarChar, 10);
                cmd.Parameters["@KotID"].Direction = System.Data.ParameterDirection.Output;
                cmd.Parameters.Add("@timestamp", System.Data.SqlDbType.Timestamp);
                cmd.Parameters["@timestamp"].Direction = System.Data.ParameterDirection.Output;
                connection.ExecuteNonQuery(cmd);
                saleVoucher.timestamp = (byte[])cmd.Parameters["@timestamp"].Value;
                saleVoucher.SaleTimestamp = (byte[])cmd.Parameters["@timestamp"].Value;
                saleVoucher.BillID = (string)cmd.Parameters["@BillID"].Value;
                saleVoucher.KotID = (string)cmd.Parameters["@KotID"].Value;
                return true;
            }
        }
        public void SetAlarm(Guid voucherID, DateTime? alarmTime)
        {
            using (SqlCommand cmd = new SqlCommand(@"UPDATE SaleVoucher SET Alarm = @Alarm WHERE VoucherID = @VoucherID"))
            {
                cmd.Parameters.AddWithValue("@VoucherID", voucherID);
                cmd.Parameters.AddWithValue("@Alarm", alarmTime);
                connection.ExecuteNonQuery(cmd);
            }
        }
        public void VoidBill(Guid voucherID, string reason)
        {
            using (SqlCommand cmd = new SqlCommand(@"UPDATE SaleVoucher SET PaidStatus = @PaidStatus, VoidReason = @VoidReason WHERE VoucherID = @VoucherID"))
            {
                cmd.Parameters.AddWithValue("@VoucherID", voucherID);
                cmd.Parameters.AddWithValue("@PaidStatus", (int)PaidStatus.Void);
                cmd.Parameters.AddWithValue("@VoidReason", reason);
                connection.ExecuteNonQuery(cmd);
            }
        }
        public SaleVoucherBO GetVoucherSale(Guid voucherID)
        {
            var cmd = new SqlCommand("SELECT b.*, ts.Floor, ts.BillID, ts.TableID, ts.WaiterID, ts.CustomerID, ts.AdvanceID, ts.PaidStatus, ts.VoidReason, ts.Printed, ts.Alarm, ts.KotID, ts.timestamp AS SaleTimestamp FROM SaleVoucher ts INNER JOIN Vouchers b ON ts.VoucherID = b.VoucherID WHERE ts.VoucherID = @VoucherID");
            cmd.Parameters.AddWithValue("@VoucherID", voucherID);
            return BusinessObjectDAO<SaleVoucherBO>.GetBusinessObject(connection.ExecuteReader(cmd));
        }
        public SaleVoucherBO GetVoucherSale(string billID)
        {
            var cmd = new SqlCommand("SELECT b.*, ts.Floor, ts.BillID, ts.TableID, ts.WaiterID, ts.CustomerID, ts.AdvanceID, ts.PaidStatus, ts.VoidReason, ts.Printed, ts.Alarm, ts.KotID, ts.timestamp AS SaleTimestamp FROM SaleVoucher ts INNER JOIN Vouchers b ON ts.VoucherID = b.VoucherID WHERE ts.BillID = @billID");
            cmd.Parameters.AddWithValue("@billID", billID);
            return BusinessObjectDAO<SaleVoucherBO>.GetBusinessObject(connection.ExecuteReader(cmd));
        }
    }
}