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

public partial class RoleEmp : PageBase
{
    private LRoleAuthority _logic; 
    protected void Page_Load(object sender, EventArgs e)
    {
   
        if (!IsPostBack)
        {
            _logic = new LRoleAuthority();
            Databound();  
            bindRoles();
            bindDeptEmp();  //分配角色时初始化部门人员树
        }
        SessionSeting();

    }

    /// <summary>
    /// bound the query list.
    /// </summary>
    private void Databound()
    {
    //    bindAuth();
    //    bindRoles();
    //    if (!isRoleAuth) bindDeptEmp();  //分配角色时初始化部门人员树
        bindGV();
         UpdateSession();
 
        
    }
   
    


    /// <summary>
    /// 绑定部门及用户
    /// </summary>
    private void bindDeptEmp()
    {
        TreeDeptEmp.Nodes.Clear();
        BindTree("0", TreeDeptEmp.SelectedNode, new LEmployee().GetDepartments().DefaultView, new  LEmployee().GetActivedEmpDept().DefaultView);
         
         
    }

    /// <summary>
    ///绑定角色
    /// </summary>
    private void bindRoles()
    {
   
        listRoles.DataSource = _logic.GetAllRoles();
        listRoles.DataTextField = "role_name";
        listRoles.DataValueField = "pk_role";
        listRoles.DataBind();
    }
 
    public void BindTree(string id, TreeNode pNode, DataView deptdv,DataView empdv)
    {

        deptdv.RowFilter = "dep_mastdept = '" + id + "'";
        foreach (DataRowView row in deptdv)
        {
            TreeNode node = new TreeNode();
            node.Text = "<em>" + row["dep_name"] + "</em>" + row["pk_department"];
            node.Value = row["pk_department"].ToString();
             node.SelectAction = TreeNodeSelectAction.None;
            node.ShowCheckBox = false;
            node.Expanded = true;
            empdv.RowFilter = "de_dept=" + node.Value;
                foreach (DataRowView emrow in empdv)
                {
                    TreeNode tnEmp = new TreeNode("<Strong>" + emrow["em_name"] + "</Strong>"  , emrow["pk_employee"].ToString()); 
                    node.ChildNodes.Add(tnEmp); 
                }
            if (pNode == null)
                //说明是根节点
            {
            
                TreeDeptEmp.Nodes.Add(node);
                 
      
            }
            else
            { 
              
                pNode.ChildNodes.Add(node); 
               
            }
            BindTree(node.Value, node, new DataView(deptdv.Table), new DataView(empdv.Table));

        }
    }

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

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

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

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        if (listRoles.SelectedValue == string.Empty) return;
        ArrayList al = new ArrayList();

        GetCheckedNode(TreeDeptEmp.Nodes, al);
        _logic.Initialize();
 //       using (TransactionScope trans = new TransactionScope())
        {
            try
            {
                
                _logic.GetRoleEmp.Delete(Convert.ToInt32(listRoles.SelectedValue));

                foreach (string id in al)
                {
                    _logic.GetRoleEmp.re_role = Convert.ToInt32(listRoles.SelectedValue);
                    _logic.GetRoleEmp.re_employee = Convert.ToInt32(id);
                    _logic.GetRoleEmp.Add();
                } 

//                trans.Complete();
            }
            catch (MyException)
            {
                throw;
            }
            catch (Exception)
            {
                throw new Exception("出现异常，保存失败。");
            }


        }

       

     
        Databound();
    }

   
    //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()
    {


    }

 void GetCheckedNode(TreeNodeCollection tnc, ArrayList checkedvalues )
 {
        foreach(TreeNode node in tnc)
        {
            if(node.Checked)
　　　 {
　　　     checkedvalues.Add(node.Value);
                 
            }
            GetCheckedNode(node.ChildNodes, checkedvalues);
       }
}

    void SetCheckedNode(TreeNodeCollection tnc, ArrayList setcheckedvalues)
    {
        foreach (TreeNode node in tnc)
        { 
            node.Checked = setcheckedvalues.Contains(Convert.ToInt32(node.Value)); 
             
            SetCheckedNode(node.ChildNodes, setcheckedvalues);
        }
    }


    private void chgOperTxt(bool addNew)
    {
 
        btnSubmit.Enabled = true;
        
    }

    


    protected void listRoles_SelectedIndexChanged(object sender, EventArgs e)
    {
       
      
        //--重置人员树的选择
       /*
        if (TreeDeptEmp.SelectedNode != null) TreeDeptEmp.SelectedNode.Selected = false;
         
        lbAuthRole.Text = "人员角色清单";
        GvRole.DataSource = null;
        GvRole.DataBind();
        * */
        //--选择人员树复选框 
        
            ArrayList empList = new ArrayList(); 
            DataTable  dt =_logic.GetEmListByRole(Convert.ToInt32(listRoles.SelectedValue))  ;
            foreach (DataRow dr in dt.Rows) 
            {
                empList.Add(dr["pk_employee"]);
            }
        SetCheckedNode(TreeDeptEmp.Nodes, empList);

        bindGV();

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

        bindGV();
       
    }
     
   
    void bindGV( )
    {
        //人员角色，权限清单
        string nodevalue = TreeDeptEmp.SelectedValue;
        if (nodevalue.Length >0 && nodevalue  != "0")  //selected node is an employee
        {     
      
          lbEmRole.Text = TreeDeptEmp.SelectedNode.Text + " 人员角色清单";
          GvRole.DataSource = _logic.GetRoleByEm(Convert.ToInt32(nodevalue));
     
         lbEmAuth.Text = TreeDeptEmp.SelectedNode.Text + " 人员权限清单";
         GVauth.DataSource = _logic.GetAuthByEm(Convert.ToInt32(nodevalue));
        
        }
        GvRole.DataBind();
        GVauth.DataBind();

        //角色对应的人员清单
        if (listRoles.SelectedItem != null)
        {
            
            lbRoleEm.Text = listRoles.SelectedItem.Text + " 角色人员清单";
            GvEm.DataSource = _logic.GetEmListByRole(Convert.ToInt32(listRoles.SelectedValue));
        }
        GvEm.DataBind();
    }
 
}