using System;
using System.Data;
using System.Data.OleDb;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Linq;
using System.Data.Entity.Infrastructure;

public partial class admin_stock_reason_reg : MyWeb.config
{
    DataTable treeDt = new DataTable();
    const int LevelMax = Model.stock.ReasonLevelMax;  //分類層數
    private Model.ezEntities _db = new Model.ezEntities();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack) {
            InitEnumsOptions<Model.stock.type>(category); //進出類型

            BuildTreeView();

            if (!isStrNull(Request["num"]))
            {
                int _num = Val(Request["num"]);
                var prod = _db.stock_reason.AsEnumerable().Where(q => q.num == _num).OrderBy(q => q.kind).FirstOrDefault();

                if (prod != null)
                {
                    title_msg.Text = "修改<span class=\"text-primary\">【" + prod.kind + "】</span>的分類名稱";
                    item_name.Text = prod.kind;
                    if (prod.category.HasValue)
                    {
                        category.SelectedValue = prod.category.Value.ToString();
                    }
                    HiddenField1.Value = prod.kind;
                }
                else
                {
                    Response.Redirect(Request.Url.AbsolutePath );

                }                

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

        }
    }

    #region 建立分類

  
    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,kind,root,category FROM stock_reason  ORDER BY category,kind,root, range";        
            treeDt = sql.dataTable(sqlCmd);
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message);
        }
        finally
        {
            sqlConn.Close();
            sqlConn.Dispose();
        }
    }

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

    public void BuildChild(int RootUid, TreeNodeCollection Nodes, int Level=1)
    {
        DataTable dt = treeDt;
        foreach (DataRow row in dt.Rows)
        {
            if (row["root"].ToString() == RootUid.ToString())
            {
                TreeNode NewNode = new TreeNode();
                string _c = "";
                if (!isStrNull(row["category"]))
                {
                    var tdesc = publicFun.enum_desc<Model.stock.type>();
                    _c = tdesc[Val(row["category"])]+" ";
                }
                if (Convert.ToString(Request["num"]) == row["num"].ToString() & HiddenField1.Value != "AddMainItem")
                {
                        

                    NewNode.Text = "<b><span style=\"color:blue\">" + (_c) + row["kind"].ToString() + "</span></b>";
                    if (Level +1 > LevelMax)
                    {
                        ImageButton5.Visible = false;
                    }
                }
                else
                {
                    NewNode.Text = (_c) + row["kind"].ToString();
                }
                NewNode.NavigateUrl = Request.Url.AbsolutePath + "?num=" + row["num"].ToString() ;
                NewNode.Expand();
                Nodes.Add(NewNode);
                if (Level + 1 <= LevelMax)
                {
                    BuildChild((int)row["num"], NewNode.ChildNodes, Level + 1);
                }
                    
            }        
        }
    }

    #endregion

    #region 新增分類按鈕事件

    protected void ImageButton5_Click(object sender, EventArgs e)
    {
         title_msg.Text = "於<span class=\"text-primary\">【" + HiddenField1.Value + "】</span>分類下，新增次分類";
        item_name.Text = "";
        category.SelectedValue = "";
        add.Visible = true;
        edit.Visible = false;
        down_table.Visible = false;
        start.Visible = false;

    }
    protected void ImageButton4_Click(object sender, EventArgs e)
    {
        title_msg.Text = "<span class=\"text-primary\">於根目錄下，新增主分類</span>";
        table.Visible = true;
        item_name.Text = "";
        category.SelectedValue = "";
        add.Visible = true;
        edit.Visible = false;
        down_table.Visible = false;
        start.Visible = false;
        HiddenField1.Value = "AddMainItem";
        BuildTreeView();
    }

    #endregion

    #region 資料修改

    protected void edit_Click(object sender, EventArgs e)
    {
        L_msg.Text = "";

        int _num = Val(Request["num"]);
        try
        {
            Model.stock_reason stock_reason = _db.stock_reason.Where(q => q.num == _num).FirstOrDefault();//修改
            if (stock_reason != null)
            {
                stock_reason.kind = item_name.Text;
                stock_reason.category = Val(category.SelectedValue);

                _db.SaveChanges();
                Model.admin_log admin_log = new Model.admin_log();
                admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.Stock, (int)Model.admin_log.Status.Update, "庫存異動原因：" + item_name.Text);

                L_msg.Type = alert_type.success;
                L_msg.Text = "操作成功";
            }
            else
            {
                L_msg.Type = alert_type.danger;
                L_msg.Text = "無此資料";
            }

        }
        catch (DbUpdateConcurrencyException)
        {
            L_msg.Type = alert_type.danger;
            L_msg.Text = "Error";
            throw;
        }
       
        
        BuildTreeView();
      

    }

    #endregion

    #region 資料新增

    protected void add_Click(object sender, EventArgs e)
    {
        L_msg.Text = "";
        int range = 1;
        int root = 0;

        if (HiddenField1.Value != "AddMainItem")
        {
            root = Convert.ToInt32(Request["num"]);
        }

        try
        {
            var prod = _db.stock_reason.AsEnumerable().Where(q => q.root == root).OrderByDescending(q => q.range).FirstOrDefault();
            if (prod != null)
                if (prod.range.HasValue)
                    range = prod.range.Value + 1;

            Model.stock_reason stock_reason = new Model.stock_reason();//新增
            stock_reason.kind = item_name.Text;
            stock_reason.root = root;
            stock_reason.range = range;
            stock_reason.category = Val( category.SelectedValue);
            _db.stock_reason.Add(stock_reason);
            _db.SaveChanges();
            Model.admin_log admin_log = new Model.admin_log();
            admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.Stock, (int)Model.admin_log.Status.Insert, "庫存異動原因：" + item_name.Text);

            L_msg.Type = alert_type.success;
            L_msg.Text = "操作成功";
        }
        catch (DbUpdateConcurrencyException)
        {
            throw;
        }
    

        BuildTreeView();
      
    }

    #endregion

    #region 資料刪除

    protected void ImageButton6_Click(object sender, EventArgs e)
    {
       
        int num = Val(Request["num"]);
        var prod = _db.stock_reason.AsEnumerable().Where(q => q.num == num).FirstOrDefault(); //刪除該筆資料
        if (prod != null)
        {
            _db.stock_reason.Remove(prod);
            _db.SaveChanges(); //執行
        }

      
        Del_Ohter_Items(Val(Request["num"]));

        Model.admin_log admin_log = new Model.admin_log();
        admin_log.writeLog(admin.info.u_id, (int)Model.admin_log.Systems.Stock, (int)Model.admin_log.Status.Delete, "庫存異動原因：" + item_name.Text);

        Response.Redirect(Request.Url.AbsolutePath + "?msg=C");
    }

    public void Del_Ohter_Items(int d_num)
    {
        var prod = _db.stock_reason.AsEnumerable().Where(q => q.root == d_num).ToList();
        if (prod.Count > 0)
        {
            foreach (var row in prod)
            {
                Del_Ohter_Items(row.num);
            }

            //查詢結果全部刪除
            _db.stock_reason.RemoveRange(prod);
            _db.SaveChanges();
        }

    }

   

    #endregion

   
}