using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Data.Odbc;

namespace InfoSoftGlobal.BluePrintApp.FC_ASP
{
	/// <summary>
	/// Summary description for Data_EmpYearlySales.
	/// </summary>
	public class Data_EmpYearlySales : System.Web.UI.Page
	{
		private void Page_Load(object sender, System.EventArgs e)
		{
			//'This method writes the employee yearly sales data as XML.
			//'To this page, we're provided employeed Id.
			string eId;
			eId = Request.QueryString["id"];
			
			Functions functionForWriter = new Functions();

			functionForWriter.Write("<chart caption='Yearly Sales Figure for " + DataGeneration.GetEmployeeName(int.Parse(eId)) + "' xAxisName='Year' palette='" + Functions.GetPalette() + "' animation='" + Functions.GetAnimationState() + "' numberPrefix='$' formatNumberScale='0'>");
			//'Get the data for employee for 3 years - 1994,95,96
			functionForWriter.Write("<set label='1994' value='" + getSalesFigure(eId,"1994") + "' />");
			functionForWriter.Write("<set label='1995' value='" + getSalesFigure(eId,"1995") + "' />");
			functionForWriter.Write("<set label='1996' value='" + getSalesFigure(eId,"1996") + "' />");
			functionForWriter.Write("</chart>");


		}

		private string getSalesFigure(string eId, string intYear)
		{
			//'Initialize database objects
			string query;
			string salesFigure;
		
			//'Retrieve the data
			query = "SELECT e.lastname, SUM(d.quantity*p.UnitPrice) As Total FROM FC_Employees as e,FC_Orders as o, FC_OrderDetails as d, FC_Products as p WHERE YEAR(OrderDate)=" + intYear + " and e.EmployeeID=" + eId + " and e.employeeid= o.employeeid and o.orderid= d.orderid and d.productid=p.productid GROUP BY e.lastname,e.EmployeeID ORDER BY SUM(d.quantity*p.UnitPrice*(1- d.discount)) DESC"	;

			using (OdbcConnection connection = DbHelper.Connection(DbHelper.ConnectionStringFisionChart))
			{
				using (OdbcCommand command = new OdbcCommand(query, connection))
				{
					using (OdbcDataReader reader= command.ExecuteReader())
					{
						if (reader.HasRows)
							salesFigure = ((int)(decimal)reader["Total"]).ToString();
						else
							salesFigure = "0";
					}
				}
				connection.Close();
			}
			return salesFigure;
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{    
			this.Load += new System.EventHandler(this.Page_Load);
		}
		#endregion
	}
}