using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;
using System.Data.OleDb;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;

public partial class admin_item_index : MyWeb.config
{
    DataTable treeDt = new DataTable();
    const int LevelMax = MyWeb.item.KindLevelMax;  //分類層數

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack) {            

            BuildTreeView();

            if (!isStrNull(Request["num"]))
            {

                MyWeb.sql sql = new MyWeb.sql();
                OleDbConnection sqlConn = sql.conn(db, p_name);
                try
                {
                    sqlConn.Open();
                    OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
                    sqlCmd.CommandText = "SELECT * FROM item Where num=?";
                    sqlCmd.Parameters.Add(new OleDbParameter("num", Request["num"]));
                    DataTable dt = sql.dataTable(sqlCmd);
                    if (dt.Rows.Count > 0)
                    {
                         title_msg.Text = "修改<span class=\"text-primary\">【" + dt.Rows[0]["title"].ToString() + "】</span>的選項資料";
                         item_name.Text = dt.Rows[0]["title"].ToString();
                         url.Text = dt.Rows[0]["url"].ToString();
                         target.SelectedValue = dt.Rows[0]["target"].ToString();
                         price.Text = dt.Rows[0]["price"].ToString();
                         demo.Text = dt.Rows[0]["demo"].ToString();
                         other.Text = dt.Rows[0]["other"].ToString();
                         other_url.Text = dt.Rows[0]["other_url"].ToString();
                         HiddenField1.Value = dt.Rows[0]["title"].ToString();
                    }
                }
                catch (Exception ex)
                {
                    Response.Write("PageLoad:" + ex.Message);
                }
                finally
                {
                    sqlConn.Close(); sqlConn.Dispose();
                }

                edit.Visible = true;
                add.Visible = false;
                down_table.Visible = true;
                start.Visible = false;
            }
            else { 
                table.Visible = false;
                down_table.Visible = false;
                if (Request["msg"] == "A"){start.Text = "【資料修改成功】";}
                else if (Request["msg"] == "B"){start.Text = "【資料新增成功】";}
                else if (Request["msg"] == "C") { start.Text = "【資料刪除成功】"; }
                else { start.Text = "【請點選下方欲新增、修改或刪除的選項分類】"; }
            }

        }

    }


    #region 產生TreeView選單

    protected void TreeTopology()
    {
        MyWeb.sql sql = new MyWeb.sql();
        OleDbConnection sqlConn = sql.conn(db, p_name);
        try
        {
            sqlConn.Open();
            OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
            sqlCmd.CommandText = "SELECT num,title,root FROM item ORDER BY root, range";
            treeDt = sql.dataTable(sqlCmd);
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }
        finally
        {
            sqlConn.Close();
            sqlConn.Dispose();
        }
    }

    public void BuildTreeView() {
        this.TreeView2.Nodes.Clear();
        TreeTopology();
        BuildChild(0, this.TreeView2.Nodes);
        treeDt.Dispose();
    }

    public void BuildChild(int RootUid, TreeNodeCollection Nodes,int Level=1)
    {

        DataTable dt = treeDt;


        if (dt.Rows.Count == 0 & RootUid == 0)
        {
            delall.Visible = false;
        }
        else if (dt.Rows.Count > 0 & RootUid == 0)
        {
            delall.Visible = true;
        }

        foreach (DataRow row in dt.Rows)
        {
            if (row["root"].ToString() == RootUid.ToString())
            {
                TreeNode newNode = new TreeNode();

                if (Convert.ToString(Request["num"]) == row["num"].ToString() & this.HiddenField1.Value != "AddMainItem")
                {
                    newNode.Text = "<b><span style=\"color:blue\">" + row["title"].ToString() + "</span></b>";
                    if (Level + 1 > LevelMax) { ImageButton5.Visible = false; }
                }
                else
                {
                    newNode.Text = row["title"].ToString();
                }
                newNode.Value = row["num"].ToString();
                newNode.ShowCheckBox = true;
                newNode.NavigateUrl = "index.aspx?num=" + row["num"].ToString();
                newNode.Expand();
                Nodes.Add(newNode);
                if (Level + 1 <= LevelMax)
                {
                    BuildChild((int)row["num"], newNode.ChildNodes, Level + 1);
                }                
            }
        }

    }

    #endregion

    #region 修改

    protected void edit_Click(object sender, EventArgs e)
    {
        L_msg.Text = "";
         MyWeb.sql sql = new MyWeb.sql();
        OleDbConnection sqlConn = sql.conn(db, p_name);
        try
        {
            sqlConn.Open();
            OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
            sqlCmd.CommandText = "UPDATE item SET title=?, url=?, price=?, demo=?, other=?, target=?, other_url=? WHERE num=?";
            sqlCmd.Parameters.Add(new OleDbParameter("title", this.item_name.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("url", this.url.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("price", this.price.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("demo", this.demo.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("other", this.other.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("target", this.target.SelectedValue));
            sqlCmd.Parameters.Add(new OleDbParameter("other_url", this.other_url.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("num", Request["num"]));
            sqlCmd.ExecuteNonQuery();

            sqlConn.Close(); sqlConn.Dispose();

            L_msg.Type = alert_type.success;
            L_msg.Text = "操作成功";
        }
        catch (Exception ex)
        {
            //ScriptMsgTop("操作失敗！", msgIcon.error);
            start.Text = ex.Message;
            L_msg.Type = alert_type.danger;
            L_msg.Text = "ex.Message！";
        }
        finally
        {
            sqlConn.Close(); sqlConn.Dispose();
        }

        BuildTreeView();
    }
    #endregion

    #region 新增

    protected void add_Click(object sender, EventArgs e)
    {
        L_msg.Text = "";
        int range_num = 1;

        MyWeb.sql sql = new MyWeb.sql();
        DataTable dt = sql.selectTable(db, p_name, "SELECT top 1 range FROM item order by range desc");
        if (dt.Rows.Count > 0) {
            range_num = (int)dt.Rows[0]["range"] + 1;
        }

        OleDbConnection sqlConn = sql.conn(db, p_name);
        try
        {
            sqlConn.Open();
            OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
            string cu = "title,url,price,demo,other,target,root,range,other_url";
            sqlCmd.CommandText = "INSERT INTO item (" + cu + ") VALUES (" + sql.mark(cu) + ")";
            sqlCmd.Parameters.Add(new OleDbParameter("title", item_name.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("url", url.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("price", price.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("demo", demo.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("other", other.Text));
            sqlCmd.Parameters.Add(new OleDbParameter("target", target.SelectedValue));    
            sqlCmd.Parameters.Add(new OleDbParameter("root", (HiddenField1.Value == "AddMainItem"? "0": Convert.ToString(Request["num"]))));
            sqlCmd.Parameters.Add(new OleDbParameter("range", range_num));
            sqlCmd.Parameters.Add(new OleDbParameter("other_url", other_url.Text));
            sqlCmd.ExecuteNonQuery();


            L_msg.Type = alert_type.success;
            L_msg.Text = "操作成功";
        }
        catch (Exception ex)
        {
            L_msg.Type = alert_type.danger;
            L_msg.Text = "ex.Message！";
            start.Text = ex.Message;
        }
        finally
        {
            sqlConn.Close(); sqlConn.Dispose();
        }      
             
        BuildTreeView();       

    }

    #endregion

    #region 刪除

    protected void delall_Click(object sender, EventArgs e)
    {
        int j = 0;
        for (int i = 0; i < TreeView2.CheckedNodes.Count; i++) {
            if (TreeView2.CheckedNodes[i].Checked) {
                MyWeb.sql sql = new MyWeb.sql();
                OleDbConnection sqlConn = sql.conn(db, p_name);
                try
                {
                    sqlConn.Open();
                    OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
                    sqlCmd.CommandText = "Delete from item Where num=?";
                    sqlCmd.Parameters.Add(new OleDbParameter("num", TreeView2.CheckedNodes[i].Value));
                    sqlCmd.ExecuteNonQuery();
                }
                catch (Exception ex)
                {
                    Response.Write(ex.Message);
                }
                finally
                {
                    sqlConn.Close(); sqlConn.Dispose();
                }
             
                Del_Ohter_Items(Convert.ToInt32(TreeView2.CheckedNodes[i].Value));
                j++;
            }
        }

        if (j > 0)
        {
            Response.Redirect("index.aspx?msg=C");
        }
        else {
            ScriptMsg("請勾選要刪除的項目", "", msgIcon.warning);
        }
    }

    protected void ImageButton6_Click(object sender, EventArgs e)
    {

        MyWeb.sql sql = new MyWeb.sql();
        OleDbConnection sqlConn = sql.conn(db, p_name);
        try
        {
            sqlConn.Open();
            OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
            sqlCmd.CommandText = "Delete from item Where num=?";
            sqlCmd.Parameters.Add(new OleDbParameter("num", Request["num"]));
            sqlCmd.ExecuteNonQuery();
        }
        catch (Exception ex)
        {        
            Response.Write(ex.Message);
        }
        finally
        {
            sqlConn.Close(); sqlConn.Dispose();
        }        

        Del_Ohter_Items(Convert.ToInt32(Request["num"]));
        Response.Redirect("index.aspx?msg=C");
    }

    public void Del_Ohter_Items(int d_num)
    {

        MyWeb.sql sql = new MyWeb.sql();
        OleDbConnection sqlConn = sql.conn(db, p_name);
        try
        {
            sqlConn.Open();
            OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
            sqlCmd.CommandText = "SELECT * FROM item Where root=?";
            sqlCmd.Parameters.Add(new OleDbParameter("root", d_num));
            DataTable dt = sql.dataTable(sqlCmd);
            for (int i = 0; i < dt.Rows.Count; i++) {
                sqlCmd = new OleDbCommand("", sqlConn);
                sqlCmd.CommandText = "Delete from item Where root=?";
                sqlCmd.Parameters.Add(new OleDbParameter("root", d_num));
                sqlCmd.ExecuteNonQuery();
                Del_Ohter_Items((int)dt.Rows[i]["num"]);                        
            }
        }
        catch (Exception ex)
        {           
            Response.Write(ex.Message);
        }
        finally
        {
            sqlConn.Close(); sqlConn.Dispose();
        }
       
    }

    #endregion

    #region 按鈕事件

    protected void ImageButton4_Click(object sender, EventArgs e)
    {
        title_msg.Text = "於根目錄下，新增主選項資料";
        table.Visible = true;
        item_name.Text = "";
        url.Text = "";
        target.SelectedValue = "A";
        price.Text = "";
        demo.Text = "";
        other.Text = "";
        other_url.Text = "";
        add.Visible = true;
        edit.Visible = false;
        down_table.Visible = false;
        start.Visible = false;
        HiddenField1.Value = "AddMainItem";
        BuildTreeView();
    }
    protected void ImageButton5_Click(object sender, EventArgs e)
    {
        title_msg.Text = "於<span class=text-primary>【" + HiddenField1.Value + "】</span>分類下，新增選項資料";
        item_name.Text = "";
        url.Text = "";
        target.SelectedValue = "A";
        price.Text = "";
        demo.Text = "";
        other.Text = "";
        add.Visible = true;
        edit.Visible = false;
        down_table.Visible = false;
        start.Visible = false;
    }

    #endregion



    protected void Button1_Click(object sender, EventArgs e)
    {
        MyWeb.sql sql = new MyWeb.sql();
        OleDbConnection sqlConn = sql.conn(db, p_name);
        try
        {
            sqlConn.Open();
            OleDbCommand sqlCmd = new OleDbCommand("", sqlConn);
            sqlCmd.CommandText = "Delete from item Where num=?";
            sqlCmd.Parameters.Add(new OleDbParameter("num", Request["num"]));
            sqlCmd.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }
        finally
        {
            sqlConn.Close(); sqlConn.Dispose();
        }

        Del_Ohter_Items(Convert.ToInt32(Request["num"]));
        Response.Redirect("index.aspx?msg=C");
    }

    protected void sortButton_Click(object sender, EventArgs e)
    {
        Response.Redirect("range.aspx");
    }
}