using System;
using System.Data;
using System.Web.UI;
using System.Web.UI.WebControls;
using ZhangPu.Gov.Logical;
using Tracen.Utils;

public partial class DeptMain : PageBase
{
    private LDepartment _logic;
    protected void Page_Load(object sender, EventArgs e)
    {
  
        if (!IsPostBack)
        {
            _logic = new LDepartment();
            Databound();
        }
        SessionSeting();
    }
 
    /*****************************************   private methods   ******************************************/

    /// <summary>
    /// bound the query list.
    /// </summary>
    private void Databound()
    {
        //绑定部门列表
        drplstDept.DataSource = _logic.GetAllActiveData();
        drplstDept.DataTextField = "dep_name";
        drplstDept.DataValueField = "pk_department";
        drplstDept.DataBind();
    



        drplstDept.Items.Insert(0, (new ListItem("张浦镇", "0")));
        drplstDept.SelectedItem.Selected = false;
        drplstDept.Items.FindByText("张浦镇").Selected = true;



        //绑定部门人员列表
         DropDownList1.DataSource = _logic.GetEmployees();
        DropDownList1.DataTextField = "em_name";
        DropDownList1.DataValueField = "pk_employee";
        DropDownList1.DataBind();
        DropDownList1.Items.Insert(0,(new ListItem("请选择...","0")));
        DropDownList1.SelectedItem.Selected = false;
        DropDownList1.Items.FindByText("请选择...").Selected = true;
        //装载选定部门节点的部门数据
        DataView dv = new DataView(_logic.GetAllActiveData());
        string selectedValue = TreeDept.SelectedValue;
         TreeDept.Nodes.Clear();
        TreeDept.Nodes.Add(new TreeNode("张浦镇","0"));
        TreeDept.Nodes[0].Expanded = true;
        BindTree("0", TreeDept.Nodes[0], dv);
     //   TreeDept.SelectedNode.ChildNodes.Clear();
    //     BindTree(TreeDept.SelectedValue, TreeDept.SelectedNode, dv);
   //     TreeDept.Nodes.AddAt(0, new TreeNode("张浦镇", "0"));
        if (selectedValue =="0") TreeDept.Nodes[0].Selected = true;
        else
        {
              setTreeDeptSelected(selectedValue, TreeDept.Nodes[0]);
        }
      
        //绑定树列表里选中的部门下的所有部门数据
        dv.RowFilter = "dep_mastdept = '" + selectedValue + "'";
        GridView1.DataSource = dv;
        GridView1.DataBind();
        UpdateSession();
    // btnSubmit.Enabled = false;
      //  ClearDetail();


        drplstDept.Items.Clear();
        initializeDrlstDept(TreeDept.Nodes, drplstDept ,"");
    }



    void initializeDrlstDept(TreeNodeCollection nds, DropDownList drplist, string emptyString)
    {
        
       
        foreach (TreeNode nd in nds)
        {
            
            ListItem li = new ListItem(emptyString + nd.Text,nd.Value);
            drplist.Items.Add(li); 
            string NextemptyString = emptyString+ "----";
            foreach (TreeNode nd1 in nd.ChildNodes)
            {
               li = new ListItem(NextemptyString + nd1.Text, nd1.Value);
                    drplist.Items.Add(li);
                   
                if (nd1.ChildNodes.Count > 0)
                {
                    NextemptyString +="----";
                   initializeDrlstDept(nd1.ChildNodes, drplist, NextemptyString);
                }


            }
        }
    }



    void setTreeDeptSelected(string toFind,TreeNode nd)
    {
        foreach (TreeNode cnd in nd.ChildNodes)
        {
            if (cnd.Value == toFind) 
            {
                cnd.Selected = true;
                break;
            }
            else
            {
                setTreeDeptSelected(toFind,cnd);
            }

        }
    }
    private void SessionSeting()
    {
        if (IsPostBack)
        {
            _logic = (LDepartment)Session[appScope.PagelevelObj];
        }
    }

    private void UpdateSession()
    {
        Session[appScope.PagelevelObj] = _logic;
    }

    /// <summary>
    /// set data from shift object to page
    /// </summary>
    private void DetailDataBind()
    {
        DataDetail.Visible = true;
        txtDepName.Text = _logic.GetDepartment.dep_name ;
        txtDepcode.Text = _logic.GetDepartment.dep_code;
        txtDepDesc.Text = _logic.GetDepartment.dep_desc;
        txtDepType.Text = _logic.GetDepartment.dep_type;
        DropDownList1.SelectedItem.Selected = false;
        if(DropDownList1.Items.FindByValue(_logic.GetDepartment.dep_manager.ToString())!=null)
        {
          DropDownList1.Items.FindByValue(_logic.GetDepartment.dep_manager.ToString()).Selected = true;  
        }
        drplstDept.SelectedItem.Selected = false;
        if (drplstDept.Items.FindByValue(_logic.GetDepartment.dep_mastdept.ToString()) != null)
        {
            drplstDept.Items.FindByValue(_logic.GetDepartment.dep_mastdept.ToString()).Selected = true;
        }
         
//    chkStatus.Checked = _logic.GetRole.dr;
    }

    /************************************** protected methods (event listeners) ********************************/

    protected void btnAddnew_Click(object sender, EventArgs e)
    {
        chgOperTxt(true);
        _logic.Initialize();
        DetailDataBind();
        GridView1.SelectedIndex = -1;
        Databound();
        drplstDept.SelectedItem.Selected = false;
        if (drplstDept.Items.FindByValue(TreeDept.SelectedNode.Value) != null)
        {
            drplstDept.Items.FindByValue(TreeDept.SelectedNode.Value).Selected = true;
        }
    }

    protected void DetailsView1_PageIndexChanging(object sender, DetailsViewPageEventArgs e)
    {
    }

    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        chgOperTxt(false);
        if (GridView1.DataKeys != null)
        {
            string id = GridView1.DataKeys[e.NewEditIndex].Value.ToString();
            _logic.Initialize(int.Parse(id));
        }
        Databound();
        DetailDataBind();
    }

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        SetDataBack();
        //shifts id eq 0 means this is new one,to add; else an old one, to update
    
        int oper = 0;
        oper = _logic.GetDepartment.ID > 0 ? _logic.GetDepartment.Update() : _logic.GetDepartment.Add();
        ClearDetail();
        Databound();
    }

    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        
        if (GridView1 != null)
        {
            if (GridView1.DataKeys != null)
            {
                string id = GridView1.DataKeys[e.RowIndex].Value.ToString();
                _logic.Initialize(int.Parse(id));
            }
        }
        /*
        _logic.GetRole.dr = false;
        _logic.GetRole.Update();
        
       */
        _logic.GetDepartment.Delete();
        ClearDetail();
        Databound();
    }

    protected void GridView1_PageIndexChanged(object sender, EventArgs e)
    {
    }

    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        Databound();

        //GridView1.DataSource = shiftLgc.getAllShifts().Tables[0];
        //     GridView1.DataBind();    
    }

    protected void GridView1_DataBinding(object sender, EventArgs e)
    {
    }

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        /*
        CheckBox chk;
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            chk = new CheckBox();
            chk.Text = "激活";
            chk.Enabled = false;
            chk.Checked = e.Row.Cells[3].Text.Trim().Equals("1");
            e.Row.Cells[3].Controls.Add(chk);
        }
      */
    }

    protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
    {
    }

    //reset the page
    protected void btnCancel_Click(object sender, EventArgs e)
    {
        _logic.Initialize();
        Page_Load(this, e);
    }

    /***************************************** internal methods ********************************************/

    /// <summary>
    /// set data from page to shift object
    /// </summary>
    private void SetDataBack()
    {
        //    _logic.GetRole.operater = Session["CurrentUserID"].ToString();  todo: write a public method to handle operater,createtime,lastmodfied ... log info.

       if (!(_logic.GetDepartment.ID > 0 )) 
       {
          _logic.GetDepartment.lastmodified = DateTime.Now.ToString(); 
         _logic.GetDepartment.dep_mastdept = Convert.ToInt32(TreeDept.SelectedValue);
       }
        
       _logic.GetDepartment.dr = true;
       _logic.GetDepartment.dep_name = txtDepName.Text;
       _logic.GetDepartment.dep_desc = txtDepDesc.Text;
       _logic.GetDepartment.dep_code = txtDepcode.Text;
       _logic.GetDepartment.dep_type = txtDepType.Text;
        if (DropDownList1.SelectedItem != null ) _logic.GetDepartment.dep_manager = Convert.ToInt32(DropDownList1.SelectedValue);
        if (drplstDept.SelectedItem != null) _logic.GetDepartment.dep_mastdept = Convert.ToInt32(drplstDept.SelectedValue);
    }

    private void chgOperTxt(bool addNew)
    {
        DataDetail.Visible = true;
        lbEdit.Text = addNew ? "增加新记录" : "修改现有记录";
        btnSubmit.Enabled = true;
    }

    private void ClearDetail()
    {
        txtDepName.Text = "";
        txtDepcode.Text = "";
        txtDepDesc.Text = "";
        txtDepType.Text ="";
        DataDetail.Visible = false;
    }

    protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
    {
        chgOperTxt(false);
        if (GridView1.DataKeys != null)
        {
            string id = GridView1.DataKeys[GridView1.SelectedIndex].Value.ToString();
            _logic.Initialize(int.Parse(id));
        }
        Databound();
        DetailDataBind();
    }



    public void BindTree(string id, TreeNode pNode, DataView dv)
    {
        
        dv.RowFilter = "dep_mastdept = '" + id + "'";
        foreach (DataRowView row in dv)
        {
            TreeNode node = new TreeNode();
            node.Text = row["dep_name"].ToString();
            node.Value = row["pk_department"].ToString();
            if (pNode == null)
                //说明是根节点
            {
            
                TreeDept.Nodes.Add(node);
                node.Expanded = true;
      
            }
            else
            {
                pNode.ChildNodes.Add(node);
                node.Expanded = true;
                
            }
            BindTree(node.Value, node, new DataView(dv.Table));

        }
    }
    protected void TreeDept_SelectedNodeChanged(object sender, EventArgs e)
    {
        GridView1.SelectedIndex = -1;
        DataView dv = new DataView(_logic.GetAllActiveData()); 
        dv.RowFilter = "dep_mastdept = '" + TreeDept.SelectedValue + "'";
        GridView1.DataSource = dv;
        GridView1.DataBind(); 
        ClearDetail();
    }
}