using System;
using System.Data;
using System.Web;
using System.Text;
using System.Web.UI.WebControls;
using qminoa.BLL.PM;
using qminoa.DA;

namespace qminoa.Webs.PM
{
	public class Reports : qminoa.Webs.PageBase
	{
		protected System.Web.UI.WebControls.ListBox ProjectList;
		protected System.Web.UI.WebControls.ListBox UserList;
		protected System.Web.UI.WebControls.Button GenProjectRpt;
		protected System.Web.UI.WebControls.Button GenResourceRpt;
		protected System.Web.UI.WebControls.TextBox StartDate;
		protected System.Web.UI.WebControls.TextBox EndDate;
		protected System.Web.UI.WebControls.RequiredFieldValidator ProjectListRequiredFieldValidator;
		protected System.Web.UI.WebControls.RequiredFieldValidator UserListRequiredFieldValidator;

		protected System.Web.UI.WebControls.DropDownList BranchDropList;
		protected System.Web.UI.WebControls.DropDownList DepartmentDropList;
		public const string UserRoleAdministrator = "1";
		public const string UserRoleProjectManager = "2";
		private PMUser	 _user;

		private void Page_Load(object sender, System.EventArgs e)
		{
			this.PageBegin("項(xiàng)目統(tǒng)計(jì)報(bào)告",true);
			_user = new PMUser(Convert.ToInt16(this.Empid));
			if(_user.Role != UserRoleAdministrator && _user.Role != UserRoleProjectManager)
			{
				Response.Redirect(Application["vRoot"]+"/login.aspx");  
			}
			DateTime startingDate = DateTime.Today;
			DateTime endingDate = DateTime.Today;

			if (!this.IsPostBack)
			{   
				ProjectList.DataSource = Project.GetProjects(_user.UserID, _user.Role);
				ProjectList.DataTextField = "Name";
				ProjectList.DataValueField = "ProjectID";
				ProjectList.DataBind();

				AdminDB admin = new AdminDB();
				BranchDropList.DataSource=admin.GetAllBranch();
				BranchDropList.DataBind();
				BranchDropList.Items[0].Selected=true;

				DepartmentDropList.DataSource=admin.GetDepByBranch(Int32.Parse(BranchDropList.SelectedItem.Value));
				DepartmentDropList.DataBind();
				DepartmentDropList.Items[0].Selected=true;

				UserList.DataSource = PMUser.GetUsers(_user.UserID, _user.Role,Int32.Parse(DepartmentDropList.SelectedItem.Value));
				UserList.DataTextField = "UserName";
				UserList.DataValueField = "UserID";
				UserList.DataBind();
				BLL.PM.TimeEntry.FillCorrectStartEndDates(DateTime.Today, ref startingDate, ref endingDate);
				StartDate.Text = startingDate.ToShortDateString();
				EndDate.Text = endingDate.ToShortDateString();
			}
		}

		private string BuildValueList(ListItemCollection items)
		{
			StringBuilder idList = new StringBuilder();
			foreach (ListItem item in items)
			{
				if (item.Selected)
				{
					if (idList.ToString() != string.Empty)
						idList.Append(",");
					idList.Append(item.Value.ToString());
				}
			}

			return idList.ToString();
		}

		#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.GenProjectRpt.Click += new System.EventHandler(this.GenProjectRpt_Click);
			this.BranchDropList.SelectedIndexChanged += new System.EventHandler(this.BranchDropList_SelectedIndexChanged);
			this.DepartmentDropList.SelectedIndexChanged += new System.EventHandler(this.DepartmentDropList_SelectedIndexChanged);
			this.GenResourceRpt.Click += new System.EventHandler(this.GenResourceRpt_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void GenProjectRpt_Click(object sender, System.EventArgs e)
		{
			ProjectListRequiredFieldValidator.Validate();

			if (ProjectListRequiredFieldValidator.IsValid)
				Server.Transfer("ProjectReport.aspx?IDs=" + BuildValueList(ProjectList.Items));
		}

		private void GenResourceRpt_Click(object sender, System.EventArgs e)
		{
			UserListRequiredFieldValidator.Validate();

			if (UserListRequiredFieldValidator.IsValid)
				Response.Redirect("ResourceReport.aspx?IDs=" + BuildValueList(UserList.Items) + 
					"&Start=" + StartDate.Text + "&End=" + EndDate.Text, false);		
		}

		private void BranchDropList_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			AdminDB admin = new AdminDB();
			DepartmentDropList.DataSource=admin.GetDepByBranch(Int32.Parse(BranchDropList.SelectedItem.Value));
			DepartmentDropList.DataBind();

			if(DepartmentDropList.Items.Count !=0)
			{
				UserList.DataSource = PMUser.GetUsers(_user.UserID, _user.Role,Int32.Parse(DepartmentDropList.SelectedItem.Value));
				UserList.DataTextField = "UserName";
				UserList.DataValueField = "UserID";
				UserList.DataBind();
			}
			else
			{
				UserList.Items.Clear();
			}
		}

		private void DepartmentDropList_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			UserList.DataSource = PMUser.GetUsers(_user.UserID, _user.Role,Int32.Parse(DepartmentDropList.SelectedItem.Value));
			UserList.DataTextField = "UserName";
			UserList.DataValueField = "UserID";
			UserList.DataBind();
		}
	}
}